virtualx-engine/servers/rendering/shader_language.cpp
Yuri Sizov 372e9abcfc Merge pull request #79459 from MoltenCoffee/fix-shader-arguments-error
Add error for undefined function in shader
2023-07-24 19:32:46 +02:00

10641 lines
348 KiB
C++

/**************************************************************************/
/* shader_language.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "shader_language.h"
#include "core/os/os.h"
#include "core/string/print_string.h"
#include "core/templates/local_vector.h"
#include "servers/rendering/renderer_compositor.h"
#include "servers/rendering_server.h"
#include "shader_types.h"
#define HAS_WARNING(flag) (warning_flags & flag)
String ShaderLanguage::get_operator_text(Operator p_op) {
static const char *op_names[OP_MAX] = { "==",
"!=",
"<",
"<=",
">",
">=",
"&&",
"||",
"!",
"-",
"+",
"-",
"*",
"/",
"%",
"<<",
">>",
"=",
"+=",
"-=",
"*=",
"/=",
"%=",
"<<=",
">>=",
"&=",
"|=",
"^=",
"&",
"|",
"^",
"~",
"++",
"--",
"?",
":",
"++",
"--",
"()",
"construct",
"index",
"empty" };
return op_names[p_op];
}
const char *ShaderLanguage::token_names[TK_MAX] = {
"EMPTY",
"IDENTIFIER",
"TRUE",
"FALSE",
"FLOAT_CONSTANT",
"INT_CONSTANT",
"UINT_CONSTANT",
"TYPE_VOID",
"TYPE_BOOL",
"TYPE_BVEC2",
"TYPE_BVEC3",
"TYPE_BVEC4",
"TYPE_INT",
"TYPE_IVEC2",
"TYPE_IVEC3",
"TYPE_IVEC4",
"TYPE_UINT",
"TYPE_UVEC2",
"TYPE_UVEC3",
"TYPE_UVEC4",
"TYPE_FLOAT",
"TYPE_VEC2",
"TYPE_VEC3",
"TYPE_VEC4",
"TYPE_MAT2",
"TYPE_MAT3",
"TYPE_MAT4",
"TYPE_SAMPLER2D",
"TYPE_ISAMPLER2D",
"TYPE_USAMPLER2D",
"TYPE_SAMPLER2DARRAY",
"TYPE_ISAMPLER2DARRAY",
"TYPE_USAMPLER2DARRAY",
"TYPE_SAMPLER3D",
"TYPE_ISAMPLER3D",
"TYPE_USAMPLER3D",
"TYPE_SAMPLERCUBE",
"TYPE_SAMPLERCUBEARRAY",
"INTERPOLATION_FLAT",
"INTERPOLATION_SMOOTH",
"CONST",
"STRUCT",
"PRECISION_LOW",
"PRECISION_MID",
"PRECISION_HIGH",
"OP_EQUAL",
"OP_NOT_EQUAL",
"OP_LESS",
"OP_LESS_EQUAL",
"OP_GREATER",
"OP_GREATER_EQUAL",
"OP_AND",
"OP_OR",
"OP_NOT",
"OP_ADD",
"OP_SUB",
"OP_MUL",
"OP_DIV",
"OP_MOD",
"OP_SHIFT_LEFT",
"OP_SHIFT_RIGHT",
"OP_ASSIGN",
"OP_ASSIGN_ADD",
"OP_ASSIGN_SUB",
"OP_ASSIGN_MUL",
"OP_ASSIGN_DIV",
"OP_ASSIGN_MOD",
"OP_ASSIGN_SHIFT_LEFT",
"OP_ASSIGN_SHIFT_RIGHT",
"OP_ASSIGN_BIT_AND",
"OP_ASSIGN_BIT_OR",
"OP_ASSIGN_BIT_XOR",
"OP_BIT_AND",
"OP_BIT_OR",
"OP_BIT_XOR",
"OP_BIT_INVERT",
"OP_INCREMENT",
"OP_DECREMENT",
"CF_IF",
"CF_ELSE",
"CF_FOR",
"CF_WHILE",
"CF_DO",
"CF_SWITCH",
"CF_CASE",
"CF_DEFAULT",
"CF_BREAK",
"CF_CONTINUE",
"CF_RETURN",
"CF_DISCARD",
"BRACKET_OPEN",
"BRACKET_CLOSE",
"CURLY_BRACKET_OPEN",
"CURLY_BRACKET_CLOSE",
"PARENTHESIS_OPEN",
"PARENTHESIS_CLOSE",
"QUESTION",
"COMMA",
"COLON",
"SEMICOLON",
"PERIOD",
"UNIFORM",
"UNIFORM_GROUP",
"INSTANCE",
"GLOBAL",
"VARYING",
"ARG_IN",
"ARG_OUT",
"ARG_INOUT",
"RENDER_MODE",
"HINT_DEFAULT_WHITE_TEXTURE",
"HINT_DEFAULT_BLACK_TEXTURE",
"HINT_DEFAULT_TRANSPARENT_TEXTURE",
"HINT_NORMAL_TEXTURE",
"HINT_ROUGHNESS_NORMAL_TEXTURE",
"HINT_ROUGHNESS_R",
"HINT_ROUGHNESS_G",
"HINT_ROUGHNESS_B",
"HINT_ROUGHNESS_A",
"HINT_ROUGHNESS_GRAY",
"HINT_ANISOTROPY_TEXTURE",
"HINT_SOURCE_COLOR",
"HINT_RANGE",
"HINT_INSTANCE_INDEX",
"HINT_SCREEN_TEXTURE",
"HINT_NORMAL_ROUGHNESS_TEXTURE",
"HINT_DEPTH_TEXTURE",
"FILTER_NEAREST",
"FILTER_LINEAR",
"FILTER_NEAREST_MIPMAP",
"FILTER_LINEAR_MIPMAP",
"FILTER_NEAREST_MIPMAP_ANISOTROPIC",
"FILTER_LINEAR_MIPMAP_ANISOTROPIC",
"REPEAT_ENABLE",
"REPEAT_DISABLE",
"SHADER_TYPE",
"CURSOR",
"ERROR",
"EOF",
};
String ShaderLanguage::get_token_text(Token p_token) {
String name = token_names[p_token.type];
if (p_token.is_integer_constant() || p_token.type == TK_FLOAT_CONSTANT) {
name += "(" + rtos(p_token.constant) + ")";
} else if (p_token.type == TK_IDENTIFIER) {
name += "(" + String(p_token.text) + ")";
} else if (p_token.type == TK_ERROR) {
name += "(" + String(p_token.text) + ")";
}
return name;
}
ShaderLanguage::Token ShaderLanguage::_make_token(TokenType p_type, const StringName &p_text) {
Token tk;
tk.type = p_type;
tk.text = p_text;
tk.line = tk_line;
if (tk.type == TK_ERROR) {
_set_error(p_text);
}
return tk;
}
enum ContextFlag : uint32_t {
CF_UNSPECIFIED = 0U,
CF_BLOCK = 1U, // "void test() { <x> }"
CF_FUNC_DECL_PARAM_SPEC = 2U, // "void test(<x> int param) {}"
CF_FUNC_DECL_PARAM_TYPE = 4U, // "void test(<x> param) {}"
CF_IF_DECL = 8U, // "if(<x>) {}"
CF_BOOLEAN = 16U, // "bool t = <x>;"
CF_GLOBAL_SPACE = 32U, // "struct", "const", "void" etc.
CF_DATATYPE = 64U, // "<x> value;"
CF_UNIFORM_TYPE = 128U, // "uniform <x> myUniform;"
CF_VARYING_TYPE = 256U, // "varying <x> myVarying;"
CF_PRECISION_MODIFIER = 512U, // "<x> vec4 a = vec4(0.0, 1.0, 2.0, 3.0);"
CF_INTERPOLATION_QUALIFIER = 1024U, // "varying <x> vec3 myColor;"
CF_UNIFORM_KEYWORD = 2048U, // "uniform"
CF_CONST_KEYWORD = 4096U, // "const"
CF_UNIFORM_QUALIFIER = 8192U, // "<x> uniform float t;"
CF_SHADER_TYPE = 16384U, // "shader_type"
};
const uint32_t KCF_DATATYPE = CF_BLOCK | CF_GLOBAL_SPACE | CF_DATATYPE | CF_FUNC_DECL_PARAM_TYPE | CF_UNIFORM_TYPE;
const uint32_t KCF_SAMPLER_DATATYPE = CF_FUNC_DECL_PARAM_TYPE | CF_UNIFORM_TYPE;
const ShaderLanguage::KeyWord ShaderLanguage::keyword_list[] = {
{ TK_TRUE, "true", CF_BLOCK | CF_IF_DECL | CF_BOOLEAN, {}, {} },
{ TK_FALSE, "false", CF_BLOCK | CF_IF_DECL | CF_BOOLEAN, {}, {} },
// data types
{ TK_TYPE_VOID, "void", CF_GLOBAL_SPACE, {}, {} },
{ TK_TYPE_BOOL, "bool", KCF_DATATYPE, {}, {} },
{ TK_TYPE_BVEC2, "bvec2", KCF_DATATYPE, {}, {} },
{ TK_TYPE_BVEC3, "bvec3", KCF_DATATYPE, {}, {} },
{ TK_TYPE_BVEC4, "bvec4", KCF_DATATYPE, {}, {} },
{ TK_TYPE_INT, "int", KCF_DATATYPE, {}, {} },
{ TK_TYPE_IVEC2, "ivec2", KCF_DATATYPE, {}, {} },
{ TK_TYPE_IVEC3, "ivec3", KCF_DATATYPE, {}, {} },
{ TK_TYPE_IVEC4, "ivec4", KCF_DATATYPE, {}, {} },
{ TK_TYPE_UINT, "uint", KCF_DATATYPE, {}, {} },
{ TK_TYPE_UVEC2, "uvec2", KCF_DATATYPE, {}, {} },
{ TK_TYPE_UVEC3, "uvec3", KCF_DATATYPE, {}, {} },
{ TK_TYPE_UVEC4, "uvec4", KCF_DATATYPE, {}, {} },
{ TK_TYPE_FLOAT, "float", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_VEC2, "vec2", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_VEC3, "vec3", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_VEC4, "vec4", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_MAT2, "mat2", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_MAT3, "mat3", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_MAT4, "mat4", KCF_DATATYPE | CF_VARYING_TYPE, {}, {} },
{ TK_TYPE_SAMPLER2D, "sampler2D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_ISAMPLER2D, "isampler2D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_USAMPLER2D, "usampler2D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_SAMPLER2DARRAY, "sampler2DArray", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_ISAMPLER2DARRAY, "isampler2DArray", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_USAMPLER2DARRAY, "usampler2DArray", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_SAMPLER3D, "sampler3D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_ISAMPLER3D, "isampler3D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_USAMPLER3D, "usampler3D", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_SAMPLERCUBE, "samplerCube", KCF_SAMPLER_DATATYPE, {}, {} },
{ TK_TYPE_SAMPLERCUBEARRAY, "samplerCubeArray", KCF_SAMPLER_DATATYPE, {}, {} },
// interpolation qualifiers
{ TK_INTERPOLATION_FLAT, "flat", CF_INTERPOLATION_QUALIFIER, {}, {} },
{ TK_INTERPOLATION_SMOOTH, "smooth", CF_INTERPOLATION_QUALIFIER, {}, {} },
// precision modifiers
{ TK_PRECISION_LOW, "lowp", CF_BLOCK | CF_PRECISION_MODIFIER, {}, {} },
{ TK_PRECISION_MID, "mediump", CF_BLOCK | CF_PRECISION_MODIFIER, {}, {} },
{ TK_PRECISION_HIGH, "highp", CF_BLOCK | CF_PRECISION_MODIFIER, {}, {} },
// global space keywords
{ TK_UNIFORM, "uniform", CF_GLOBAL_SPACE | CF_UNIFORM_KEYWORD, {}, {} },
{ TK_UNIFORM_GROUP, "group_uniforms", CF_GLOBAL_SPACE, {}, {} },
{ TK_VARYING, "varying", CF_GLOBAL_SPACE, { "particles", "sky", "fog" }, {} },
{ TK_CONST, "const", CF_BLOCK | CF_GLOBAL_SPACE | CF_CONST_KEYWORD, {}, {} },
{ TK_STRUCT, "struct", CF_GLOBAL_SPACE, {}, {} },
{ TK_SHADER_TYPE, "shader_type", CF_SHADER_TYPE, {}, {} },
{ TK_RENDER_MODE, "render_mode", CF_GLOBAL_SPACE, {}, {} },
// uniform qualifiers
{ TK_INSTANCE, "instance", CF_GLOBAL_SPACE | CF_UNIFORM_QUALIFIER, {}, {} },
{ TK_GLOBAL, "global", CF_GLOBAL_SPACE | CF_UNIFORM_QUALIFIER, {}, {} },
// block keywords
{ TK_CF_IF, "if", CF_BLOCK, {}, {} },
{ TK_CF_ELSE, "else", CF_BLOCK, {}, {} },
{ TK_CF_FOR, "for", CF_BLOCK, {}, {} },
{ TK_CF_WHILE, "while", CF_BLOCK, {}, {} },
{ TK_CF_DO, "do", CF_BLOCK, {}, {} },
{ TK_CF_SWITCH, "switch", CF_BLOCK, {}, {} },
{ TK_CF_CASE, "case", CF_BLOCK, {}, {} },
{ TK_CF_DEFAULT, "default", CF_BLOCK, {}, {} },
{ TK_CF_BREAK, "break", CF_BLOCK, {}, {} },
{ TK_CF_CONTINUE, "continue", CF_BLOCK, {}, {} },
{ TK_CF_RETURN, "return", CF_BLOCK, {}, {} },
{ TK_CF_DISCARD, "discard", CF_BLOCK, { "particles", "sky", "fog" }, { "fragment" } },
// function specifier keywords
{ TK_ARG_IN, "in", CF_FUNC_DECL_PARAM_SPEC, {}, {} },
{ TK_ARG_OUT, "out", CF_FUNC_DECL_PARAM_SPEC, {}, {} },
{ TK_ARG_INOUT, "inout", CF_FUNC_DECL_PARAM_SPEC, {}, {} },
// hints
{ TK_HINT_SOURCE_COLOR, "source_color", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_RANGE, "hint_range", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_INSTANCE_INDEX, "instance_index", CF_UNSPECIFIED, {}, {} },
// sampler hints
{ TK_HINT_NORMAL_TEXTURE, "hint_normal", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_DEFAULT_WHITE_TEXTURE, "hint_default_white", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_DEFAULT_BLACK_TEXTURE, "hint_default_black", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_DEFAULT_TRANSPARENT_TEXTURE, "hint_default_transparent", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ANISOTROPY_TEXTURE, "hint_anisotropy", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_R, "hint_roughness_r", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_G, "hint_roughness_g", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_B, "hint_roughness_b", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_A, "hint_roughness_a", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_NORMAL_TEXTURE, "hint_roughness_normal", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_ROUGHNESS_GRAY, "hint_roughness_gray", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_SCREEN_TEXTURE, "hint_screen_texture", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_NORMAL_ROUGHNESS_TEXTURE, "hint_normal_roughness_texture", CF_UNSPECIFIED, {}, {} },
{ TK_HINT_DEPTH_TEXTURE, "hint_depth_texture", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_NEAREST, "filter_nearest", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_LINEAR, "filter_linear", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_NEAREST_MIPMAP, "filter_nearest_mipmap", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_LINEAR_MIPMAP, "filter_linear_mipmap", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_NEAREST_MIPMAP_ANISOTROPIC, "filter_nearest_mipmap_anisotropic", CF_UNSPECIFIED, {}, {} },
{ TK_FILTER_LINEAR_MIPMAP_ANISOTROPIC, "filter_linear_mipmap_anisotropic", CF_UNSPECIFIED, {}, {} },
{ TK_REPEAT_ENABLE, "repeat_enable", CF_UNSPECIFIED, {}, {} },
{ TK_REPEAT_DISABLE, "repeat_disable", CF_UNSPECIFIED, {}, {} },
{ TK_ERROR, nullptr, CF_UNSPECIFIED, {}, {} }
};
ShaderLanguage::Token ShaderLanguage::_get_token() {
#define GETCHAR(m_idx) (((char_idx + m_idx) < code.length()) ? code[char_idx + m_idx] : char32_t(0))
while (true) {
char_idx++;
switch (GETCHAR(-1)) {
case 0:
return _make_token(TK_EOF);
case 0xFFFF:
return _make_token(TK_CURSOR); //for completion
case '\t':
case '\r':
case ' ':
continue;
case '\n':
tk_line++;
continue;
case '/': {
switch (GETCHAR(0)) {
case '*': { // block comment
char_idx++;
while (true) {
if (GETCHAR(0) == 0) {
return _make_token(TK_EOF);
}
if (GETCHAR(0) == '*' && GETCHAR(1) == '/') {
char_idx += 2;
break;
} else if (GETCHAR(0) == '\n') {
tk_line++;
}
char_idx++;
}
} break;
case '/': { // line comment skip
while (true) {
if (GETCHAR(0) == '\n') {
tk_line++;
char_idx++;
break;
}
if (GETCHAR(0) == 0) {
return _make_token(TK_EOF);
}
char_idx++;
}
} break;
case '=': { // diveq
char_idx++;
return _make_token(TK_OP_ASSIGN_DIV);
} break;
default:
return _make_token(TK_OP_DIV);
}
continue; //a comment, continue to next token
} break;
case '=': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_EQUAL);
}
return _make_token(TK_OP_ASSIGN);
} break;
case '<': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_LESS_EQUAL);
} else if (GETCHAR(0) == '<') {
char_idx++;
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_SHIFT_LEFT);
}
return _make_token(TK_OP_SHIFT_LEFT);
}
return _make_token(TK_OP_LESS);
} break;
case '>': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_GREATER_EQUAL);
} else if (GETCHAR(0) == '>') {
char_idx++;
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_SHIFT_RIGHT);
}
return _make_token(TK_OP_SHIFT_RIGHT);
}
return _make_token(TK_OP_GREATER);
} break;
case '!': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_NOT_EQUAL);
}
return _make_token(TK_OP_NOT);
} break;
//case '"' //string - no strings in shader
//case '\'' //string - no strings in shader
case '{':
return _make_token(TK_CURLY_BRACKET_OPEN);
case '}':
return _make_token(TK_CURLY_BRACKET_CLOSE);
case '[':
return _make_token(TK_BRACKET_OPEN);
case ']':
return _make_token(TK_BRACKET_CLOSE);
case '(':
return _make_token(TK_PARENTHESIS_OPEN);
case ')':
return _make_token(TK_PARENTHESIS_CLOSE);
case ',':
return _make_token(TK_COMMA);
case ';':
return _make_token(TK_SEMICOLON);
case '?':
return _make_token(TK_QUESTION);
case ':':
return _make_token(TK_COLON);
case '^':
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_BIT_XOR);
}
return _make_token(TK_OP_BIT_XOR);
case '~':
return _make_token(TK_OP_BIT_INVERT);
case '&': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_BIT_AND);
} else if (GETCHAR(0) == '&') {
char_idx++;
return _make_token(TK_OP_AND);
}
return _make_token(TK_OP_BIT_AND);
} break;
case '|': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_BIT_OR);
} else if (GETCHAR(0) == '|') {
char_idx++;
return _make_token(TK_OP_OR);
}
return _make_token(TK_OP_BIT_OR);
} break;
case '*': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_MUL);
}
return _make_token(TK_OP_MUL);
} break;
case '+': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_ADD);
} else if (GETCHAR(0) == '+') {
char_idx++;
return _make_token(TK_OP_INCREMENT);
}
return _make_token(TK_OP_ADD);
} break;
case '-': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_SUB);
} else if (GETCHAR(0) == '-') {
char_idx++;
return _make_token(TK_OP_DECREMENT);
}
return _make_token(TK_OP_SUB);
} break;
case '%': {
if (GETCHAR(0) == '=') {
char_idx++;
return _make_token(TK_OP_ASSIGN_MOD);
}
return _make_token(TK_OP_MOD);
} break;
case '@': {
if (GETCHAR(0) == '@' && GETCHAR(1) == '>') {
char_idx += 2;
LocalVector<char32_t> incp;
while (GETCHAR(0) != '\n') {
incp.push_back(GETCHAR(0));
char_idx++;
}
incp.push_back(0); // Zero end it.
String include_path(incp.ptr());
include_positions.write[include_positions.size() - 1].line = tk_line;
FilePosition fp;
fp.file = include_path;
fp.line = 0;
tk_line = 0;
include_positions.push_back(fp);
} else if (GETCHAR(0) == '@' && GETCHAR(1) == '<') {
if (include_positions.size() == 1) {
return _make_token(TK_ERROR, "Invalid include exit hint @@< without matching enter hint.");
}
char_idx += 2;
include_positions.resize(include_positions.size() - 1); // Pop back.
tk_line = include_positions[include_positions.size() - 1].line - 1; // Restore line.
} else {
return _make_token(TK_ERROR, "Invalid include enter/exit hint token (@@> and @@<)");
}
} break;
default: {
char_idx--; //go back one, since we have no idea what this is
if (is_digit(GETCHAR(0)) || (GETCHAR(0) == '.' && is_digit(GETCHAR(1)))) {
// parse number
bool hexa_found = false;
bool period_found = false;
bool exponent_found = false;
bool float_suffix_found = false;
bool uint_suffix_found = false;
bool end_suffix_found = false;
enum {
CASE_ALL,
CASE_HEXA_PERIOD,
CASE_EXPONENT,
CASE_SIGN_AFTER_EXPONENT,
CASE_NONE,
CASE_MAX,
} lut_case = CASE_ALL;
static bool suffix_lut[CASE_MAX][127];
if (!is_const_suffix_lut_initialized) {
is_const_suffix_lut_initialized = true;
for (int i = 0; i < 127; i++) {
char t = char(i);
suffix_lut[CASE_ALL][i] = t == '.' || t == 'x' || t == 'e' || t == 'f' || t == 'u' || t == '-' || t == '+';
suffix_lut[CASE_HEXA_PERIOD][i] = t == 'e' || t == 'f' || t == 'u';
suffix_lut[CASE_EXPONENT][i] = t == 'f' || t == '-' || t == '+';
suffix_lut[CASE_SIGN_AFTER_EXPONENT][i] = t == 'f';
suffix_lut[CASE_NONE][i] = false;
}
}
String str;
int i = 0;
bool digit_after_exp = false;
while (true) {
const char32_t symbol = String::char_lowercase(GETCHAR(i));
bool error = false;
if (is_digit(symbol)) {
if (exponent_found) {
digit_after_exp = true;
}
if (end_suffix_found) {
error = true;
}
} else {
if (symbol < 0x7F && suffix_lut[lut_case][symbol]) {
if (symbol == 'x') {
hexa_found = true;
lut_case = CASE_HEXA_PERIOD;
} else if (symbol == '.') {
period_found = true;
lut_case = CASE_HEXA_PERIOD;
} else if (symbol == 'e' && !hexa_found) {
exponent_found = true;
lut_case = CASE_EXPONENT;
} else if (symbol == 'f' && !hexa_found) {
if (!period_found && !exponent_found) {
error = true;
}
float_suffix_found = true;
end_suffix_found = true;
lut_case = CASE_NONE;
} else if (symbol == 'u') {
uint_suffix_found = true;
end_suffix_found = true;
lut_case = CASE_NONE;
} else if (symbol == '-' || symbol == '+') {
if (exponent_found) {
lut_case = CASE_SIGN_AFTER_EXPONENT;
} else {
break;
}
}
} else if (!hexa_found || !is_hex_digit(symbol)) {
if (is_ascii_identifier_char(symbol)) {
error = true;
} else {
break;
}
}
}
if (error) {
if (hexa_found) {
return _make_token(TK_ERROR, "Invalid (hexadecimal) numeric constant");
}
if (period_found || exponent_found || float_suffix_found) {
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
if (uint_suffix_found) {
return _make_token(TK_ERROR, "Invalid (unsigned integer) numeric constant");
}
return _make_token(TK_ERROR, "Invalid (integer) numeric constant");
}
str += symbol;
i++;
}
char32_t last_char = str[str.length() - 1];
if (hexa_found) { // Integer (hex).
if (uint_suffix_found) {
// Strip the suffix.
str = str.left(str.length() - 1);
// Compensate reading cursor position.
char_idx += 1;
}
if (str.size() > 11 || !str.is_valid_hex_number(true)) { // > 0xFFFFFFFF
return _make_token(TK_ERROR, "Invalid (hexadecimal) numeric constant");
}
} else if (period_found || exponent_found || float_suffix_found) { // Float
if (exponent_found && (!digit_after_exp || (!is_digit(last_char) && last_char != 'f'))) { // Checks for eg: "2E", "2E-", "2E+" and 0ef, 0e+f, 0.0ef, 0.0e-f (exponent without digit after it).
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
if (period_found) {
if (float_suffix_found) {
//checks for eg "1.f" or "1.99f" notations
if (last_char != 'f') {
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
} else {
//checks for eg. "1." or "1.99" notations
if (last_char != '.' && !is_digit(last_char)) {
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
}
} else if (float_suffix_found) {
// if no period found the float suffix must be the last character, like in "2f" for "2.0"
if (last_char != 'f') {
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
}
if (float_suffix_found) {
// Strip the suffix.
str = str.left(str.length() - 1);
// Compensate reading cursor position.
char_idx += 1;
}
if (!str.is_valid_float()) {
return _make_token(TK_ERROR, "Invalid (float) numeric constant");
}
} else { // Integer
if (uint_suffix_found) {
// Strip the suffix.
str = str.left(str.length() - 1);
// Compensate reading cursor position.
char_idx += 1;
}
if (!str.is_valid_int()) {
if (uint_suffix_found) {
return _make_token(TK_ERROR, "Invalid (unsigned integer) numeric constant");
} else {
return _make_token(TK_ERROR, "Invalid (integer) numeric constant");
}
}
}
char_idx += str.length();
Token tk;
if (period_found || exponent_found || float_suffix_found) {
tk.type = TK_FLOAT_CONSTANT;
} else if (uint_suffix_found) {
tk.type = TK_UINT_CONSTANT;
} else {
tk.type = TK_INT_CONSTANT;
}
if (hexa_found) {
tk.constant = (double)str.hex_to_int();
} else {
tk.constant = str.to_float();
}
tk.line = tk_line;
return tk;
}
if (GETCHAR(0) == '.') {
//parse period
char_idx++;
return _make_token(TK_PERIOD);
}
if (is_ascii_identifier_char(GETCHAR(0))) {
// parse identifier
String str;
while (is_ascii_identifier_char(GETCHAR(0))) {
str += char32_t(GETCHAR(0));
char_idx++;
}
//see if keyword
//should be converted to a static map
int idx = 0;
while (keyword_list[idx].text) {
if (str == keyword_list[idx].text) {
return _make_token(keyword_list[idx].token);
}
idx++;
}
str = str.replace("dus_", "_");
return _make_token(TK_IDENTIFIER, str);
}
if (GETCHAR(0) > 32) {
return _make_token(TK_ERROR, "Tokenizer: Unknown character #" + itos(GETCHAR(0)) + ": '" + String::chr(GETCHAR(0)) + "'");
} else {
return _make_token(TK_ERROR, "Tokenizer: Unknown character #" + itos(GETCHAR(0)));
}
} break;
}
}
ERR_PRINT("BUG");
return Token();
#undef GETCHAR
}
bool ShaderLanguage::_lookup_next(Token &r_tk) {
TkPos pre_pos = _get_tkpos();
int line = pre_pos.tk_line;
_get_token();
Token tk = _get_token();
_set_tkpos(pre_pos);
if (tk.line == line) {
r_tk = tk;
return true;
}
return false;
}
String ShaderLanguage::token_debug(const String &p_code) {
clear();
code = p_code;
String output;
Token tk = _get_token();
while (tk.type != TK_EOF && tk.type != TK_ERROR) {
output += itos(tk_line) + ": " + get_token_text(tk) + "\n";
tk = _get_token();
}
return output;
}
bool ShaderLanguage::is_token_variable_datatype(TokenType p_type) {
return (
p_type == TK_TYPE_VOID ||
p_type == TK_TYPE_BOOL ||
p_type == TK_TYPE_BVEC2 ||
p_type == TK_TYPE_BVEC3 ||
p_type == TK_TYPE_BVEC4 ||
p_type == TK_TYPE_INT ||
p_type == TK_TYPE_IVEC2 ||
p_type == TK_TYPE_IVEC3 ||
p_type == TK_TYPE_IVEC4 ||
p_type == TK_TYPE_UINT ||
p_type == TK_TYPE_UVEC2 ||
p_type == TK_TYPE_UVEC3 ||
p_type == TK_TYPE_UVEC4 ||
p_type == TK_TYPE_FLOAT ||
p_type == TK_TYPE_VEC2 ||
p_type == TK_TYPE_VEC3 ||
p_type == TK_TYPE_VEC4 ||
p_type == TK_TYPE_MAT2 ||
p_type == TK_TYPE_MAT3 ||
p_type == TK_TYPE_MAT4);
}
bool ShaderLanguage::is_token_datatype(TokenType p_type) {
return (
p_type == TK_TYPE_VOID ||
p_type == TK_TYPE_BOOL ||
p_type == TK_TYPE_BVEC2 ||
p_type == TK_TYPE_BVEC3 ||
p_type == TK_TYPE_BVEC4 ||
p_type == TK_TYPE_INT ||
p_type == TK_TYPE_IVEC2 ||
p_type == TK_TYPE_IVEC3 ||
p_type == TK_TYPE_IVEC4 ||
p_type == TK_TYPE_UINT ||
p_type == TK_TYPE_UVEC2 ||
p_type == TK_TYPE_UVEC3 ||
p_type == TK_TYPE_UVEC4 ||
p_type == TK_TYPE_FLOAT ||
p_type == TK_TYPE_VEC2 ||
p_type == TK_TYPE_VEC3 ||
p_type == TK_TYPE_VEC4 ||
p_type == TK_TYPE_MAT2 ||
p_type == TK_TYPE_MAT3 ||
p_type == TK_TYPE_MAT4 ||
p_type == TK_TYPE_SAMPLER2D ||
p_type == TK_TYPE_ISAMPLER2D ||
p_type == TK_TYPE_USAMPLER2D ||
p_type == TK_TYPE_SAMPLER2DARRAY ||
p_type == TK_TYPE_ISAMPLER2DARRAY ||
p_type == TK_TYPE_USAMPLER2DARRAY ||
p_type == TK_TYPE_SAMPLER3D ||
p_type == TK_TYPE_ISAMPLER3D ||
p_type == TK_TYPE_USAMPLER3D ||
p_type == TK_TYPE_SAMPLERCUBE ||
p_type == TK_TYPE_SAMPLERCUBEARRAY);
}
ShaderLanguage::DataType ShaderLanguage::get_token_datatype(TokenType p_type) {
return DataType(p_type - TK_TYPE_VOID);
}
bool ShaderLanguage::is_token_interpolation(TokenType p_type) {
return (
p_type == TK_INTERPOLATION_FLAT ||
p_type == TK_INTERPOLATION_SMOOTH);
}
ShaderLanguage::DataInterpolation ShaderLanguage::get_token_interpolation(TokenType p_type) {
if (p_type == TK_INTERPOLATION_FLAT) {
return INTERPOLATION_FLAT;
} else {
return INTERPOLATION_SMOOTH;
}
}
bool ShaderLanguage::is_token_precision(TokenType p_type) {
return (
p_type == TK_PRECISION_LOW ||
p_type == TK_PRECISION_MID ||
p_type == TK_PRECISION_HIGH);
}
bool ShaderLanguage::is_token_arg_qual(TokenType p_type) {
return (
p_type == TK_ARG_IN ||
p_type == TK_ARG_OUT ||
p_type == TK_ARG_INOUT);
}
ShaderLanguage::DataPrecision ShaderLanguage::get_token_precision(TokenType p_type) {
if (p_type == TK_PRECISION_LOW) {
return PRECISION_LOWP;
} else if (p_type == TK_PRECISION_HIGH) {
return PRECISION_HIGHP;
} else {
return PRECISION_MEDIUMP;
}
}
String ShaderLanguage::get_precision_name(DataPrecision p_type) {
switch (p_type) {
case PRECISION_LOWP:
return "lowp";
case PRECISION_MEDIUMP:
return "mediump";
case PRECISION_HIGHP:
return "highp";
default:
break;
}
return "";
}
String ShaderLanguage::get_interpolation_name(DataInterpolation p_interpolation) {
switch (p_interpolation) {
case INTERPOLATION_FLAT:
return "flat";
case INTERPOLATION_SMOOTH:
return "smooth";
default:
break;
}
return "";
}
String ShaderLanguage::get_datatype_name(DataType p_type) {
switch (p_type) {
case TYPE_VOID:
return "void";
case TYPE_BOOL:
return "bool";
case TYPE_BVEC2:
return "bvec2";
case TYPE_BVEC3:
return "bvec3";
case TYPE_BVEC4:
return "bvec4";
case TYPE_INT:
return "int";
case TYPE_IVEC2:
return "ivec2";
case TYPE_IVEC3:
return "ivec3";
case TYPE_IVEC4:
return "ivec4";
case TYPE_UINT:
return "uint";
case TYPE_UVEC2:
return "uvec2";
case TYPE_UVEC3:
return "uvec3";
case TYPE_UVEC4:
return "uvec4";
case TYPE_FLOAT:
return "float";
case TYPE_VEC2:
return "vec2";
case TYPE_VEC3:
return "vec3";
case TYPE_VEC4:
return "vec4";
case TYPE_MAT2:
return "mat2";
case TYPE_MAT3:
return "mat3";
case TYPE_MAT4:
return "mat4";
case TYPE_SAMPLER2D:
return "sampler2D";
case TYPE_ISAMPLER2D:
return "isampler2D";
case TYPE_USAMPLER2D:
return "usampler2D";
case TYPE_SAMPLER2DARRAY:
return "sampler2DArray";
case TYPE_ISAMPLER2DARRAY:
return "isampler2DArray";
case TYPE_USAMPLER2DARRAY:
return "usampler2DArray";
case TYPE_SAMPLER3D:
return "sampler3D";
case TYPE_ISAMPLER3D:
return "isampler3D";
case TYPE_USAMPLER3D:
return "usampler3D";
case TYPE_SAMPLERCUBE:
return "samplerCube";
case TYPE_SAMPLERCUBEARRAY:
return "samplerCubeArray";
case TYPE_STRUCT:
return "struct";
case TYPE_MAX:
return "invalid";
}
return "";
}
String ShaderLanguage::get_uniform_hint_name(ShaderNode::Uniform::Hint p_hint) {
String result;
switch (p_hint) {
case ShaderNode::Uniform::HINT_RANGE: {
result = "hint_range";
} break;
case ShaderNode::Uniform::HINT_SOURCE_COLOR: {
result = "source_color";
} break;
case ShaderNode::Uniform::HINT_NORMAL: {
result = "hint_normal";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_NORMAL: {
result = "hint_roughness_normal";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_R: {
result = "hint_roughness_r";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_G: {
result = "hint_roughness_g";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_B: {
result = "hint_roughness_b";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_A: {
result = "hint_roughness_a";
} break;
case ShaderNode::Uniform::HINT_ROUGHNESS_GRAY: {
result = "hint_roughness_gray";
} break;
case ShaderNode::Uniform::HINT_DEFAULT_BLACK: {
result = "hint_default_black";
} break;
case ShaderNode::Uniform::HINT_DEFAULT_WHITE: {
result = "hint_default_white";
} break;
case ShaderNode::Uniform::HINT_DEFAULT_TRANSPARENT: {
result = "hint_default_transparent";
} break;
case ShaderNode::Uniform::HINT_ANISOTROPY: {
result = "hint_anisotropy";
} break;
case ShaderNode::Uniform::HINT_SCREEN_TEXTURE: {
result = "hint_screen_texture";
} break;
case ShaderNode::Uniform::HINT_NORMAL_ROUGHNESS_TEXTURE: {
result = "hint_normal_roughness_texture";
} break;
case ShaderNode::Uniform::HINT_DEPTH_TEXTURE: {
result = "hint_depth_texture";
} break;
default:
break;
}
return result;
}
String ShaderLanguage::get_texture_filter_name(TextureFilter p_filter) {
String result;
switch (p_filter) {
case FILTER_NEAREST: {
result = "filter_nearest";
} break;
case FILTER_LINEAR: {
result = "filter_linear";
} break;
case FILTER_NEAREST_MIPMAP: {
result = "filter_nearest_mipmap";
} break;
case FILTER_LINEAR_MIPMAP: {
result = "filter_linear_mipmap";
} break;
case FILTER_NEAREST_MIPMAP_ANISOTROPIC: {
result = "filter_nearest_mipmap_anisotropic";
} break;
case FILTER_LINEAR_MIPMAP_ANISOTROPIC: {
result = "filter_linear_mipmap_anisotropic";
} break;
default: {
} break;
}
return result;
}
String ShaderLanguage::get_texture_repeat_name(TextureRepeat p_repeat) {
String result;
switch (p_repeat) {
case REPEAT_DISABLE: {
result = "repeat_disable";
} break;
case REPEAT_ENABLE: {
result = "repeat_enable";
} break;
default: {
} break;
}
return result;
}
bool ShaderLanguage::is_token_nonvoid_datatype(TokenType p_type) {
return is_token_datatype(p_type) && p_type != TK_TYPE_VOID;
}
void ShaderLanguage::clear() {
current_function = StringName();
last_name = StringName();
last_type = IDENTIFIER_MAX;
current_uniform_group_name = "";
current_uniform_subgroup_name = "";
current_uniform_hint = ShaderNode::Uniform::HINT_NONE;
current_uniform_filter = FILTER_DEFAULT;
current_uniform_repeat = REPEAT_DEFAULT;
current_uniform_instance_index_defined = false;
completion_type = COMPLETION_NONE;
completion_block = nullptr;
completion_function = StringName();
completion_class = TAG_GLOBAL;
completion_struct = StringName();
completion_base = TYPE_VOID;
completion_base_array = false;
include_positions.clear();
include_positions.push_back(FilePosition());
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
used_constants.clear();
used_varyings.clear();
used_uniforms.clear();
used_functions.clear();
used_structs.clear();
used_local_vars.clear();
warnings.clear();
#endif // DEBUG_ENABLED
error_line = 0;
tk_line = 1;
char_idx = 0;
error_set = false;
error_str = "";
is_const_decl = false;
while (nodes) {
Node *n = nodes;
nodes = nodes->next;
memdelete(n);
}
}
#ifdef DEBUG_ENABLED
void ShaderLanguage::_parse_used_identifier(const StringName &p_identifier, IdentifierType p_type, const StringName &p_function) {
switch (p_type) {
case IdentifierType::IDENTIFIER_CONSTANT:
if (HAS_WARNING(ShaderWarning::UNUSED_CONSTANT_FLAG) && used_constants.has(p_identifier)) {
used_constants[p_identifier].used = true;
}
break;
case IdentifierType::IDENTIFIER_VARYING:
if (HAS_WARNING(ShaderWarning::UNUSED_VARYING_FLAG) && used_varyings.has(p_identifier)) {
if (shader->varyings[p_identifier].stage != ShaderNode::Varying::STAGE_VERTEX && shader->varyings[p_identifier].stage != ShaderNode::Varying::STAGE_FRAGMENT) {
used_varyings[p_identifier].used = true;
}
}
break;
case IdentifierType::IDENTIFIER_UNIFORM:
if (HAS_WARNING(ShaderWarning::UNUSED_UNIFORM_FLAG) && used_uniforms.has(p_identifier)) {
used_uniforms[p_identifier].used = true;
}
break;
case IdentifierType::IDENTIFIER_FUNCTION:
if (HAS_WARNING(ShaderWarning::UNUSED_FUNCTION_FLAG) && used_functions.has(p_identifier)) {
used_functions[p_identifier].used = true;
}
break;
case IdentifierType::IDENTIFIER_LOCAL_VAR:
if (HAS_WARNING(ShaderWarning::UNUSED_LOCAL_VARIABLE_FLAG) && used_local_vars.has(p_function) && used_local_vars[p_function].has(p_identifier)) {
used_local_vars[p_function][p_identifier].used = true;
}
break;
default:
break;
}
}
#endif // DEBUG_ENABLED
bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_reassign, const FunctionInfo &p_function_info, const StringName &p_identifier, DataType *r_data_type, IdentifierType *r_type, bool *r_is_const, int *r_array_size, StringName *r_struct_name, ConstantNode::Value *r_constant_value) {
if (is_shader_inc) {
for (int i = 0; i < RenderingServer::SHADER_MAX; i++) {
for (const KeyValue<StringName, FunctionInfo> &E : ShaderTypes::get_singleton()->get_functions(RenderingServer::ShaderMode(i))) {
if ((current_function == E.key || E.key == "global" || E.key == "constants") && E.value.built_ins.has(p_identifier)) {
if (r_data_type) {
*r_data_type = E.value.built_ins[p_identifier].type;
}
if (r_is_const) {
*r_is_const = E.value.built_ins[p_identifier].constant;
}
if (r_type) {
*r_type = IDENTIFIER_BUILTIN_VAR;
}
return true;
}
}
}
} else {
if (p_function_info.built_ins.has(p_identifier)) {
if (r_data_type) {
*r_data_type = p_function_info.built_ins[p_identifier].type;
}
if (r_is_const) {
*r_is_const = p_function_info.built_ins[p_identifier].constant;
}
if (r_type) {
*r_type = IDENTIFIER_BUILTIN_VAR;
}
return true;
}
}
if (p_function_info.stage_functions.has(p_identifier)) {
if (r_data_type) {
*r_data_type = p_function_info.stage_functions[p_identifier].return_type;
}
if (r_is_const) {
*r_is_const = true;
}
if (r_type) {
*r_type = IDENTIFIER_FUNCTION;
}
return true;
}
FunctionNode *function = nullptr;
while (p_block) {
if (p_block->variables.has(p_identifier)) {
if (r_data_type) {
*r_data_type = p_block->variables[p_identifier].type;
}
if (r_is_const) {
*r_is_const = p_block->variables[p_identifier].is_const;
}
if (r_array_size) {
*r_array_size = p_block->variables[p_identifier].array_size;
}
if (r_struct_name) {
*r_struct_name = p_block->variables[p_identifier].struct_name;
}
if (r_constant_value) {
*r_constant_value = p_block->variables[p_identifier].value;
}
if (r_type) {
*r_type = IDENTIFIER_LOCAL_VAR;
}
return true;
}
if (p_block->parent_function) {
function = p_block->parent_function;
break;
} else {
if (p_allow_reassign) {
break;
}
ERR_FAIL_COND_V(!p_block->parent_block, false);
p_block = p_block->parent_block;
}
}
if (function) {
for (int i = 0; i < function->arguments.size(); i++) {
if (function->arguments[i].name == p_identifier) {
if (r_data_type) {
*r_data_type = function->arguments[i].type;
}
if (r_struct_name) {
*r_struct_name = function->arguments[i].type_str;
}
if (r_array_size) {
*r_array_size = function->arguments[i].array_size;
}
if (r_is_const) {
*r_is_const = function->arguments[i].is_const;
}
if (r_type) {
*r_type = IDENTIFIER_FUNCTION_ARGUMENT;
}
return true;
}
}
}
if (shader->varyings.has(p_identifier)) {
if (r_data_type) {
*r_data_type = shader->varyings[p_identifier].type;
}
if (r_array_size) {
*r_array_size = shader->varyings[p_identifier].array_size;
}
if (r_type) {
*r_type = IDENTIFIER_VARYING;
}
return true;
}
if (shader->uniforms.has(p_identifier)) {
if (r_data_type) {
*r_data_type = shader->uniforms[p_identifier].type;
}
if (r_array_size) {
*r_array_size = shader->uniforms[p_identifier].array_size;
}
if (r_type) {
*r_type = IDENTIFIER_UNIFORM;
}
return true;
}
if (shader->constants.has(p_identifier)) {
if (r_is_const) {
*r_is_const = true;
}
if (r_data_type) {
*r_data_type = shader->constants[p_identifier].type;
}
if (r_array_size) {
*r_array_size = shader->constants[p_identifier].array_size;
}
if (r_struct_name) {
*r_struct_name = shader->constants[p_identifier].type_str;
}
if (r_constant_value) {
if (shader->constants[p_identifier].initializer && shader->constants[p_identifier].initializer->values.size() == 1) {
*r_constant_value = shader->constants[p_identifier].initializer->values[0];
}
}
if (r_type) {
*r_type = IDENTIFIER_CONSTANT;
}
return true;
}
for (int i = 0; i < shader->functions.size(); i++) {
if (!shader->functions[i].callable) {
continue;
}
if (shader->functions[i].name == p_identifier) {
if (r_data_type) {
*r_data_type = shader->functions[i].function->return_type;
}
if (r_array_size) {
*r_array_size = shader->functions[i].function->return_array_size;
}
if (r_type) {
*r_type = IDENTIFIER_FUNCTION;
}
return true;
}
}
return false;
}
bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type, int *r_ret_size) {
bool valid = false;
DataType ret_type = TYPE_VOID;
int ret_size = 0;
switch (p_op->op) {
case OP_EQUAL:
case OP_NOT_EQUAL: {
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
valid = na == nb;
ret_type = TYPE_BOOL;
} break;
case OP_LESS:
case OP_LESS_EQUAL:
case OP_GREATER:
case OP_GREATER_EQUAL: {
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
valid = na == nb && (na == TYPE_UINT || na == TYPE_INT || na == TYPE_FLOAT);
ret_type = TYPE_BOOL;
} break;
case OP_AND:
case OP_OR: {
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
valid = na == nb && na == TYPE_BOOL;
ret_type = TYPE_BOOL;
} break;
case OP_NOT: {
if (!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
valid = na == TYPE_BOOL;
ret_type = TYPE_BOOL;
} break;
case OP_INCREMENT:
case OP_DECREMENT:
case OP_POST_INCREMENT:
case OP_POST_DECREMENT:
case OP_NEGATE: {
if (!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
valid = na > TYPE_BOOL && na < TYPE_MAT2;
ret_type = na;
} break;
case OP_ADD:
case OP_SUB:
case OP_MUL:
case OP_DIV: {
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na > nb) {
//make things easier;
SWAP(na, nb);
}
if (na == nb) {
valid = (na > TYPE_BOOL && na <= TYPE_MAT4);
ret_type = na;
} else if (na == TYPE_INT && nb == TYPE_IVEC2) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_INT && nb == TYPE_IVEC3) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_INT && nb == TYPE_IVEC4) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_UINT && nb == TYPE_UVEC2) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UINT && nb == TYPE_UVEC3) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UINT && nb == TYPE_UVEC4) {
valid = true;
ret_type = TYPE_UVEC4;
} else if (na == TYPE_FLOAT && nb == TYPE_VEC2) {
valid = true;
ret_type = TYPE_VEC2;
} else if (na == TYPE_FLOAT && nb == TYPE_VEC3) {
valid = true;
ret_type = TYPE_VEC3;
} else if (na == TYPE_FLOAT && nb == TYPE_VEC4) {
valid = true;
ret_type = TYPE_VEC4;
} else if (na == TYPE_FLOAT && nb == TYPE_MAT2) {
valid = true;
ret_type = TYPE_MAT2;
} else if (na == TYPE_FLOAT && nb == TYPE_MAT3) {
valid = true;
ret_type = TYPE_MAT3;
} else if (na == TYPE_FLOAT && nb == TYPE_MAT4) {
valid = true;
ret_type = TYPE_MAT4;
} else if (p_op->op == OP_MUL && na == TYPE_VEC2 && nb == TYPE_MAT2) {
valid = true;
ret_type = TYPE_VEC2;
} else if (p_op->op == OP_MUL && na == TYPE_VEC3 && nb == TYPE_MAT3) {
valid = true;
ret_type = TYPE_VEC3;
} else if (p_op->op == OP_MUL && na == TYPE_VEC4 && nb == TYPE_MAT4) {
valid = true;
ret_type = TYPE_VEC4;
}
} break;
case OP_ASSIGN_MOD:
case OP_MOD: {
/*
* The operator modulus (%) operates on signed or unsigned integers or integer vectors. The operand
* types must both be signed or both be unsigned. The operands cannot be vectors of differing size. If
* one operand is a scalar and the other vector, then the scalar is applied component-wise to the vector,
* resulting in the same type as the vector. If both are vectors of the same size, the result is computed
* component-wise.
*/
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na == TYPE_INT && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_INT;
} else if (na == TYPE_IVEC2 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_IVEC2 && nb == TYPE_IVEC2) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_IVEC3) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_IVEC4) {
valid = true;
ret_type = TYPE_IVEC4;
/////
} else if (na == TYPE_UINT && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UINT;
} else if (na == TYPE_UVEC2 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC4;
} else if (na == TYPE_UVEC2 && nb == TYPE_UVEC2) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UVEC3) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UVEC4) {
valid = true;
ret_type = TYPE_UVEC4;
}
} break;
case OP_ASSIGN_SHIFT_LEFT:
case OP_ASSIGN_SHIFT_RIGHT:
case OP_SHIFT_LEFT:
case OP_SHIFT_RIGHT: {
if ((!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) || (!p_op->arguments[1]->is_indexed() && p_op->arguments[1]->get_array_size() > 0)) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na == TYPE_INT && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_INT;
} else if (na == TYPE_IVEC2 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_IVEC2 && nb == TYPE_IVEC2) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_IVEC3) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_IVEC4) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_UINT && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UINT;
} else if (na == TYPE_UVEC2 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC4;
} else if (na == TYPE_UVEC2 && nb == TYPE_UVEC2) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UVEC3) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UVEC4) {
valid = true;
ret_type = TYPE_UVEC4;
}
} break;
case OP_ASSIGN: {
int sa = 0;
int sb = 0;
if (!p_op->arguments[0]->is_indexed()) {
sa = p_op->arguments[0]->get_array_size();
}
if (!p_op->arguments[1]->is_indexed()) {
sb = p_op->arguments[1]->get_array_size();
}
if (sa != sb) {
break; // don't accept arrays if their sizes are not equal
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na == TYPE_STRUCT || nb == TYPE_STRUCT) {
valid = p_op->arguments[0]->get_datatype_name() == p_op->arguments[1]->get_datatype_name();
} else {
valid = na == nb;
}
ret_type = na;
ret_size = sa;
} break;
case OP_ASSIGN_ADD:
case OP_ASSIGN_SUB:
case OP_ASSIGN_MUL:
case OP_ASSIGN_DIV: {
int sa = 0;
int sb = 0;
if (!p_op->arguments[0]->is_indexed()) {
sa = p_op->arguments[0]->get_array_size();
}
if (!p_op->arguments[1]->is_indexed()) {
sb = p_op->arguments[1]->get_array_size();
}
if (sa > 0 || sb > 0) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na == nb) {
valid = (na > TYPE_BOOL && na <= TYPE_MAT4);
ret_type = na;
} else if (na == TYPE_IVEC2 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_UVEC2 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC4;
} else if (na == TYPE_VEC2 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_VEC2;
} else if (na == TYPE_VEC3 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_VEC3;
} else if (na == TYPE_VEC4 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_VEC4;
} else if (na == TYPE_MAT2 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_MAT2;
} else if (na == TYPE_MAT3 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_MAT3;
} else if (na == TYPE_MAT4 && nb == TYPE_FLOAT) {
valid = true;
ret_type = TYPE_MAT4;
} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC2 && nb == TYPE_MAT2) {
valid = true;
ret_type = TYPE_VEC2;
} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC3 && nb == TYPE_MAT3) {
valid = true;
ret_type = TYPE_VEC3;
} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC4 && nb == TYPE_MAT4) {
valid = true;
ret_type = TYPE_VEC4;
}
} break;
case OP_ASSIGN_BIT_AND:
case OP_ASSIGN_BIT_OR:
case OP_ASSIGN_BIT_XOR:
case OP_BIT_AND:
case OP_BIT_OR:
case OP_BIT_XOR: {
/*
* The bitwise operators and (&), exclusive-or (^), and inclusive-or (|). The operands must be of type
* signed or unsigned integers or integer vectors. The operands cannot be vectors of differing size. If
* one operand is a scalar and the other a vector, the scalar is applied component-wise to the vector,
* resulting in the same type as the vector. The fundamental types of the operands (signed or unsigned)
* must match.
*/
int sa = 0;
int sb = 0;
if (!p_op->arguments[0]->is_indexed()) {
sa = p_op->arguments[0]->get_array_size();
}
if (!p_op->arguments[1]->is_indexed()) {
sb = p_op->arguments[1]->get_array_size();
}
if (sa > 0 || sb > 0) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
if (na > nb && p_op->op >= OP_BIT_AND) {
//can swap for non assign
SWAP(na, nb);
}
if (na == TYPE_INT && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_INT;
} else if (na == TYPE_IVEC2 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_INT) {
valid = true;
ret_type = TYPE_IVEC4;
} else if (na == TYPE_IVEC2 && nb == TYPE_IVEC2) {
valid = true;
ret_type = TYPE_IVEC2;
} else if (na == TYPE_IVEC3 && nb == TYPE_IVEC3) {
valid = true;
ret_type = TYPE_IVEC3;
} else if (na == TYPE_IVEC4 && nb == TYPE_IVEC4) {
valid = true;
ret_type = TYPE_IVEC4;
/////
} else if (na == TYPE_UINT && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UINT;
} else if (na == TYPE_UVEC2 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UINT) {
valid = true;
ret_type = TYPE_UVEC4;
} else if (na == TYPE_UVEC2 && nb == TYPE_UVEC2) {
valid = true;
ret_type = TYPE_UVEC2;
} else if (na == TYPE_UVEC3 && nb == TYPE_UVEC3) {
valid = true;
ret_type = TYPE_UVEC3;
} else if (na == TYPE_UVEC4 && nb == TYPE_UVEC4) {
valid = true;
ret_type = TYPE_UVEC4;
}
} break;
case OP_BIT_INVERT: { //unaries
if (!p_op->arguments[0]->is_indexed() && p_op->arguments[0]->get_array_size() > 0) {
break; // don't accept arrays
}
DataType na = p_op->arguments[0]->get_datatype();
valid = na >= TYPE_INT && na < TYPE_FLOAT;
ret_type = na;
} break;
case OP_SELECT_IF: {
int sa = 0;
int sb = 0;
if (!p_op->arguments[1]->is_indexed()) {
sa = p_op->arguments[1]->get_array_size();
}
if (!p_op->arguments[2]->is_indexed()) {
sb = p_op->arguments[2]->get_array_size();
}
if (sa != sb) {
break; // don't accept arrays if their sizes are not equal
}
DataType na = p_op->arguments[0]->get_datatype();
DataType nb = p_op->arguments[1]->get_datatype();
DataType nc = p_op->arguments[2]->get_datatype();
valid = na == TYPE_BOOL && (nb == nc);
ret_type = nb;
ret_size = sa;
} break;
default: {
ERR_FAIL_V(false);
}
}
if (r_ret_type) {
*r_ret_type = ret_type;
}
if (r_ret_size) {
*r_ret_size = ret_size;
}
return valid;
}
const ShaderLanguage::BuiltinFuncDef ShaderLanguage::builtin_func_defs[] = {
// Constructors.
{ "bool", TYPE_BOOL, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_BOOL, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_BOOL, TYPE_BOOL, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_BVEC2, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_BOOL, TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BOOL, TYPE_BOOL, TYPE_BOOL, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BOOL, TYPE_BVEC2, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BVEC2, TYPE_BOOL, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BOOL, TYPE_BOOL, TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BOOL, TYPE_BVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BVEC3, TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BVEC2, TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "float", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_FLOAT, TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_FLOAT, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_VEC2, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_FLOAT, TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "int", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec2", TYPE_IVEC2, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec2", TYPE_IVEC2, { TYPE_INT, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_INT, TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_INT, TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_IVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_INT, TYPE_INT, TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_INT, TYPE_IVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uint", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_UVEC2, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_UINT, TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UINT, TYPE_UVEC2, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UVEC2, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UINT, TYPE_UINT, TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UINT, TYPE_UVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UVEC3, TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat2", TYPE_MAT2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat3", TYPE_MAT3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat4", TYPE_MAT4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat2", TYPE_MAT2, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat3", TYPE_MAT3, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat4", TYPE_MAT4, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
// Conversion scalars.
{ "int", TYPE_INT, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "int", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "int", TYPE_INT, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "int", TYPE_INT, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "float", TYPE_FLOAT, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "float", TYPE_FLOAT, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "float", TYPE_FLOAT, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "float", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uint", TYPE_UINT, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uint", TYPE_UINT, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uint", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uint", TYPE_UINT, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bool", TYPE_BOOL, { TYPE_BOOL, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bool", TYPE_BOOL, { TYPE_INT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bool", TYPE_BOOL, { TYPE_UINT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bool", TYPE_BOOL, { TYPE_FLOAT, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
// Conversion vectors.
{ "ivec2", TYPE_IVEC2, { TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec2", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec2", TYPE_IVEC2, { TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec2", TYPE_IVEC2, { TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec2", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec2", TYPE_UVEC2, { TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_BVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_IVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_UVEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec2", TYPE_BVEC2, { TYPE_VEC2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_BVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_UVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec3", TYPE_IVEC3, { TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_BVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_IVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_UVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec3", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_BVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_IVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_UVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec3", TYPE_UVEC3, { TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_BVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_IVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_UVEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec3", TYPE_BVEC3, { TYPE_VEC3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_BVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_UVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "ivec4", TYPE_IVEC4, { TYPE_VEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_BVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_IVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_UVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "vec4", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_BVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_IVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_UVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "uvec4", TYPE_UVEC4, { TYPE_VEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_BVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_IVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_UVEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "bvec4", TYPE_BVEC4, { TYPE_VEC4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
// Conversion between matrixes.
{ "mat2", TYPE_MAT2, { TYPE_MAT3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat2", TYPE_MAT2, { TYPE_MAT4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat3", TYPE_MAT3, { TYPE_MAT2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat3", TYPE_MAT3, { TYPE_MAT4, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat4", TYPE_MAT4, { TYPE_MAT2, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
{ "mat4", TYPE_MAT4, { TYPE_MAT3, TYPE_VOID }, { "" }, TAG_GLOBAL, false },
// Built-ins - trigonometric functions.
// radians
{ "radians", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "degrees" }, TAG_GLOBAL, false },
{ "radians", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "degrees" }, TAG_GLOBAL, false },
{ "radians", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "degrees" }, TAG_GLOBAL, false },
{ "radians", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "degrees" }, TAG_GLOBAL, false },
// degrees
{ "degrees", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "radians" }, TAG_GLOBAL, false },
{ "degrees", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "radians" }, TAG_GLOBAL, false },
{ "degrees", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "radians" }, TAG_GLOBAL, false },
{ "degrees", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "radians" }, TAG_GLOBAL, false },
// sin
{ "sin", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "sin", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "sin", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "sin", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
// cos
{ "cos", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "cos", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "cos", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "cos", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
// tan
{ "tan", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "tan", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "tan", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
{ "tan", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "angle" }, TAG_GLOBAL, false },
// asin
{ "asin", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asin", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asin", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asin", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// acos
{ "acos", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acos", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acos", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acos", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// atan
{ "atan", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "y_over_x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "y_over_x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "y_over_x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "y_over_x" }, TAG_GLOBAL, false },
{ "atan", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "y", "x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "y", "x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "y", "x" }, TAG_GLOBAL, false },
{ "atan", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "y", "x" }, TAG_GLOBAL, false },
// sinh
{ "sinh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sinh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sinh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sinh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// cosh
{ "cosh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "cosh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "cosh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "cosh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// tanh
{ "tanh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "tanh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "tanh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "tanh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// asinh
{ "asinh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asinh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asinh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "asinh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// acosh
{ "acosh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acosh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acosh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "acosh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// atanh
{ "atanh", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "atanh", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "atanh", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "atanh", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// Builtins - exponential functions.
// pow
{ "pow", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "pow", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "pow", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "pow", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
// exp
{ "exp", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// log
{ "log", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// exp2
{ "exp2", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp2", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp2", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "exp2", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// log2
{ "log2", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log2", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log2", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "log2", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// sqrt
{ "sqrt", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sqrt", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sqrt", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sqrt", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// inversesqrt
{ "inversesqrt", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "inversesqrt", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "inversesqrt", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "inversesqrt", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// Built-ins - common functions.
// abs
{ "abs", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "abs", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// sign
{ "sign", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "sign", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// floor
{ "floor", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floor", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floor", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floor", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// trunc
{ "trunc", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "trunc", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "trunc", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "trunc", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// round
{ "round", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "round", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "round", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "round", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// roundEven
{ "roundEven", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "roundEven", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "roundEven", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "roundEven", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// ceil
{ "ceil", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "ceil", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "ceil", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "ceil", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// fract
{ "fract", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "fract", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "fract", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "fract", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// mod
{ "mod", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC2, { TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC3, { TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
{ "mod", TYPE_VEC4, { TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "x", "y" }, TAG_GLOBAL, false },
// modf
{ "modf", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "i" }, TAG_GLOBAL, false },
{ "modf", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "x", "i" }, TAG_GLOBAL, false },
{ "modf", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "x", "i" }, TAG_GLOBAL, false },
{ "modf", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "x", "i" }, TAG_GLOBAL, false },
// min
{ "min", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC2, { TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC3, { TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_VEC4, { TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_INT, { TYPE_INT, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC2, { TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC3, { TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_IVEC4, { TYPE_IVEC4, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "min", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// max
{ "max", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC2, { TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC3, { TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_VEC4, { TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_INT, { TYPE_INT, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC2, { TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC3, { TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_IVEC4, { TYPE_IVEC4, TYPE_INT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "max", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UINT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// clamp
{ "clamp", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC2, { TYPE_VEC2, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC3, { TYPE_VEC3, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_VEC4, { TYPE_VEC4, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_INT, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC2, { TYPE_IVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC3, { TYPE_IVEC3, TYPE_INT, TYPE_INT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_IVEC4, { TYPE_IVEC4, TYPE_INT, TYPE_INT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
{ "clamp", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "minVal", "maxVal" }, TAG_GLOBAL, false },
// mix
{ "mix", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_BVEC2, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_BVEC3, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_BVEC4, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
{ "mix", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b", "value" }, TAG_GLOBAL, false },
// step
{ "step", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC2, { TYPE_FLOAT, TYPE_VEC2, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC3, { TYPE_FLOAT, TYPE_VEC3, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
{ "step", TYPE_VEC4, { TYPE_FLOAT, TYPE_VEC4, TYPE_VOID }, { "edge", "x" }, TAG_GLOBAL, false },
// smoothstep
{ "smoothstep", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC2, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VEC2, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC3, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VEC3, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
{ "smoothstep", TYPE_VEC4, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VEC4, TYPE_VOID }, { "edge0", "edge1", "value" }, TAG_GLOBAL, false },
// isnan
{ "isnan", TYPE_BOOL, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isnan", TYPE_BVEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isnan", TYPE_BVEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isnan", TYPE_BVEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// isinf
{ "isinf", TYPE_BOOL, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isinf", TYPE_BVEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isinf", TYPE_BVEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "isinf", TYPE_BVEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// floatBitsToInt
{ "floatBitsToInt", TYPE_INT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToInt", TYPE_IVEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToInt", TYPE_IVEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToInt", TYPE_IVEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// floatBitsToUint
{ "floatBitsToUint", TYPE_UINT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToUint", TYPE_UVEC2, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToUint", TYPE_UVEC3, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "floatBitsToUint", TYPE_UVEC4, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// intBitsToFloat
{ "intBitsToFloat", TYPE_FLOAT, { TYPE_INT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "intBitsToFloat", TYPE_VEC2, { TYPE_IVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "intBitsToFloat", TYPE_VEC3, { TYPE_IVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "intBitsToFloat", TYPE_VEC4, { TYPE_IVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// uintBitsToFloat
{ "uintBitsToFloat", TYPE_FLOAT, { TYPE_UINT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "uintBitsToFloat", TYPE_VEC2, { TYPE_UVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "uintBitsToFloat", TYPE_VEC3, { TYPE_UVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "uintBitsToFloat", TYPE_VEC4, { TYPE_UVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// Built-ins - geometric functions.
// length
{ "length", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "length", TYPE_FLOAT, { TYPE_VEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "length", TYPE_FLOAT, { TYPE_VEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "length", TYPE_FLOAT, { TYPE_VEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// distance
{ "distance", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "distance", TYPE_FLOAT, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "distance", TYPE_FLOAT, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "distance", TYPE_FLOAT, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// dot
{ "dot", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "dot", TYPE_FLOAT, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "dot", TYPE_FLOAT, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "dot", TYPE_FLOAT, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// cross
{ "cross", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// normalize
{ "normalize", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "normalize", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "normalize", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "normalize", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
// reflect
{ "reflect", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "I", "N" }, TAG_GLOBAL, false },
{ "reflect", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "I", "N" }, TAG_GLOBAL, false },
{ "reflect", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "I", "N" }, TAG_GLOBAL, false },
// refract
{ "refract", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "I", "N", "eta" }, TAG_GLOBAL, false },
{ "refract", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "I", "N", "eta" }, TAG_GLOBAL, false },
{ "refract", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "I", "N", "eta" }, TAG_GLOBAL, false },
// faceforward
{ "faceforward", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "N", "I", "Nref" }, TAG_GLOBAL, false },
{ "faceforward", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "N", "I", "Nref" }, TAG_GLOBAL, false },
{ "faceforward", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "N", "I", "Nref" }, TAG_GLOBAL, false },
// matrixCompMult
{ "matrixCompMult", TYPE_MAT2, { TYPE_MAT2, TYPE_MAT2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "matrixCompMult", TYPE_MAT3, { TYPE_MAT3, TYPE_MAT3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "matrixCompMult", TYPE_MAT4, { TYPE_MAT4, TYPE_MAT4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// outerProduct
{ "outerProduct", TYPE_MAT2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "c", "r" }, TAG_GLOBAL, false },
{ "outerProduct", TYPE_MAT3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "c", "r" }, TAG_GLOBAL, false },
{ "outerProduct", TYPE_MAT4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "c", "r" }, TAG_GLOBAL, false },
// transpose
{ "transpose", TYPE_MAT2, { TYPE_MAT2, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "transpose", TYPE_MAT3, { TYPE_MAT3, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "transpose", TYPE_MAT4, { TYPE_MAT4, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
// determinant
{ "determinant", TYPE_FLOAT, { TYPE_MAT2, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "determinant", TYPE_FLOAT, { TYPE_MAT3, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "determinant", TYPE_FLOAT, { TYPE_MAT4, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
// inverse
{ "inverse", TYPE_MAT2, { TYPE_MAT2, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "inverse", TYPE_MAT3, { TYPE_MAT3, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
{ "inverse", TYPE_MAT4, { TYPE_MAT4, TYPE_VOID }, { "m" }, TAG_GLOBAL, false },
// lessThan
{ "lessThan", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThan", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// greaterThan
{ "greaterThan", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThan", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// lessThanEqual
{ "lessThanEqual", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "lessThanEqual", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// greaterThanEqual
{ "greaterThanEqual", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "greaterThanEqual", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// equal
{ "equal", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC2, { TYPE_BVEC2, TYPE_BVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC3, { TYPE_BVEC3, TYPE_BVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "equal", TYPE_BVEC4, { TYPE_BVEC4, TYPE_BVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// notEqual
{ "notEqual", TYPE_BVEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC2, { TYPE_BVEC2, TYPE_BVEC2, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC3, { TYPE_BVEC3, TYPE_BVEC3, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
{ "notEqual", TYPE_BVEC4, { TYPE_BVEC4, TYPE_BVEC4, TYPE_VOID }, { "a", "b" }, TAG_GLOBAL, false },
// any
{ "any", TYPE_BOOL, { TYPE_BVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "any", TYPE_BOOL, { TYPE_BVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "any", TYPE_BOOL, { TYPE_BVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// all
{ "all", TYPE_BOOL, { TYPE_BVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "all", TYPE_BOOL, { TYPE_BVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "all", TYPE_BOOL, { TYPE_BVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// not
{ "not", TYPE_BVEC2, { TYPE_BVEC2, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "not", TYPE_BVEC3, { TYPE_BVEC3, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
{ "not", TYPE_BVEC4, { TYPE_BVEC4, TYPE_VOID }, { "x" }, TAG_GLOBAL, false },
// Built-ins: texture functions.
// textureSize
{ "textureSize", TYPE_IVEC2, { TYPE_SAMPLER2D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC2, { TYPE_ISAMPLER2D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC2, { TYPE_USAMPLER2D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_SAMPLER2DARRAY, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_ISAMPLER2DARRAY, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_USAMPLER2DARRAY, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_SAMPLER3D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_ISAMPLER3D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC3, { TYPE_USAMPLER3D, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC2, { TYPE_SAMPLERCUBE, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
{ "textureSize", TYPE_IVEC2, { TYPE_SAMPLERCUBEARRAY, TYPE_INT, TYPE_VOID }, { "sampler", "lod" }, TAG_GLOBAL, false },
// texture
{ "texture", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLERCUBEARRAY, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "texture", TYPE_VEC4, { TYPE_SAMPLERCUBEARRAY, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
// textureProj
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC4, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureProj", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "bias" }, TAG_GLOBAL, false },
// textureLod
{ "textureLod", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureLod", TYPE_VEC4, { TYPE_SAMPLERCUBEARRAY, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
// texelFetch
{ "texelFetch", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_IVEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "texelFetch", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_IVEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
// textureProjLod
{ "textureProjLod", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC3, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
{ "textureProjLod", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC4, TYPE_FLOAT, TYPE_VOID }, { "sampler", "coords", "lod" }, TAG_GLOBAL, false },
// textureGrad
{ "textureGrad", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureGrad", TYPE_VEC4, { TYPE_SAMPLERCUBEARRAY, TYPE_VEC4, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
// textureProjGrad
{ "textureProjGrad", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC4, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC4, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC3, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC4, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_VEC4, { TYPE_SAMPLER3D, TYPE_VEC4, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_IVEC4, { TYPE_ISAMPLER3D, TYPE_VEC4, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
{ "textureProjGrad", TYPE_UVEC4, { TYPE_USAMPLER3D, TYPE_VEC4, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords", "dPdx", "dPdy" }, TAG_GLOBAL, false },
// textureGather
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLER2D, TYPE_VEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_IVEC4, { TYPE_ISAMPLER2D, TYPE_VEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_UVEC4, { TYPE_USAMPLER2D, TYPE_VEC2, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLER2DARRAY, TYPE_VEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_IVEC4, { TYPE_ISAMPLER2DARRAY, TYPE_VEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_UVEC4, { TYPE_USAMPLER2DARRAY, TYPE_VEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_VOID }, { "sampler", "coords" }, TAG_GLOBAL, false },
{ "textureGather", TYPE_VEC4, { TYPE_SAMPLERCUBE, TYPE_VEC3, TYPE_INT, TYPE_VOID }, { "sampler", "coords", "comp" }, TAG_GLOBAL, false },
// textureQueryLod
{ "textureQueryLod", TYPE_VEC2, { TYPE_SAMPLER2D, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_ISAMPLER2D, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_USAMPLER2D, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_SAMPLER2DARRAY, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_ISAMPLER2DARRAY, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_USAMPLER2DARRAY, TYPE_VEC2 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_SAMPLER3D, TYPE_VEC3 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_ISAMPLER3D, TYPE_VEC3 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_USAMPLER3D, TYPE_VEC3 }, { "sampler", "coords" }, TAG_GLOBAL, true },
{ "textureQueryLod", TYPE_VEC2, { TYPE_SAMPLERCUBE, TYPE_VEC3 }, { "sampler", "coords" }, TAG_GLOBAL, true },
// textureQueryLevels
{ "textureQueryLevels", TYPE_INT, { TYPE_SAMPLER2D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_ISAMPLER2D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_USAMPLER2D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_SAMPLER2DARRAY }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_ISAMPLER2DARRAY }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_USAMPLER2DARRAY }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_SAMPLER3D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_ISAMPLER3D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_USAMPLER3D }, { "sampler" }, TAG_GLOBAL, true },
{ "textureQueryLevels", TYPE_INT, { TYPE_SAMPLERCUBE }, { "sampler" }, TAG_GLOBAL, true },
// dFdx
{ "dFdx", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdx", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdx", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdx", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
// dFdxCoarse
{ "dFdxCoarse", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxCoarse", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxCoarse", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxCoarse", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// dFdxFine
{ "dFdxFine", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxFine", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxFine", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdxFine", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// dFdy
{ "dFdy", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdy", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdy", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "dFdy", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
// dFdyCoarse
{ "dFdyCoarse", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyCoarse", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyCoarse", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyCoarse", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// dFdyFine
{ "dFdyFine", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyFine", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyFine", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "dFdyFine", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// fwidth
{ "fwidth", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "fwidth", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "fwidth", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
{ "fwidth", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, false },
// fwidthCoarse
{ "fwidthCoarse", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthCoarse", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthCoarse", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthCoarse", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// fwidthFine
{ "fwidthFine", TYPE_FLOAT, { TYPE_FLOAT, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthFine", TYPE_VEC2, { TYPE_VEC2, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthFine", TYPE_VEC3, { TYPE_VEC3, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
{ "fwidthFine", TYPE_VEC4, { TYPE_VEC4, TYPE_VOID }, { "p" }, TAG_GLOBAL, true },
// Sub-functions.
// array
{ "length", TYPE_INT, { TYPE_VOID }, { "" }, TAG_ARRAY, false },
// Modern functions.
// fma
{ "fma", TYPE_FLOAT, { TYPE_FLOAT, TYPE_FLOAT, TYPE_FLOAT, TYPE_VOID }, { "a", "b", "c" }, TAG_GLOBAL, true },
{ "fma", TYPE_VEC2, { TYPE_VEC2, TYPE_VEC2, TYPE_VEC2, TYPE_VOID }, { "a", "b", "c" }, TAG_GLOBAL, true },
{ "fma", TYPE_VEC3, { TYPE_VEC3, TYPE_VEC3, TYPE_VEC3, TYPE_VOID }, { "a", "b", "c" }, TAG_GLOBAL, true },
{ "fma", TYPE_VEC4, { TYPE_VEC4, TYPE_VEC4, TYPE_VEC4, TYPE_VOID }, { "a", "b", "c" }, TAG_GLOBAL, true },
// Packing/Unpacking functions.
{ "packHalf2x16", TYPE_UINT, { TYPE_VEC2, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "packUnorm2x16", TYPE_UINT, { TYPE_VEC2, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "packSnorm2x16", TYPE_UINT, { TYPE_VEC2, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "packUnorm4x8", TYPE_UINT, { TYPE_VEC4, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "packSnorm4x8", TYPE_UINT, { TYPE_VEC4, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "unpackHalf2x16", TYPE_VEC2, { TYPE_UINT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "unpackUnorm2x16", TYPE_VEC2, { TYPE_UINT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "unpackSnorm2x16", TYPE_VEC2, { TYPE_UINT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "unpackUnorm4x8", TYPE_VEC4, { TYPE_UINT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
{ "unpackSnorm4x8", TYPE_VEC4, { TYPE_UINT, TYPE_VOID }, { "v" }, TAG_GLOBAL, false },
// bitfieldExtract
{ "bitfieldExtract", TYPE_INT, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_IVEC2, { TYPE_IVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_IVEC3, { TYPE_IVEC3, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_IVEC4, { TYPE_IVEC4, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_UINT, { TYPE_UINT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_UVEC2, { TYPE_UVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_UVEC3, { TYPE_UVEC3, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldExtract", TYPE_UVEC4, { TYPE_UVEC4, TYPE_INT, TYPE_INT, TYPE_VOID }, { "value", "offset", "bits" }, TAG_GLOBAL, true },
// bitfieldInsert
{ "bitfieldInsert", TYPE_INT, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_IVEC2, { TYPE_IVEC2, TYPE_IVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_IVEC3, { TYPE_IVEC3, TYPE_IVEC3, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_IVEC4, { TYPE_IVEC4, TYPE_IVEC4, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
{ "bitfieldInsert", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_INT, TYPE_INT, TYPE_VOID }, { "base", "insert", "offset", "bits" }, TAG_GLOBAL, true },
// bitfieldReverse
{ "bitfieldReverse", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_UVEC2, { TYPE_UVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_UVEC3, { TYPE_UVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitfieldReverse", TYPE_UVEC4, { TYPE_UVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
// bitCount
{ "bitCount", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_UVEC2, { TYPE_UVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_UVEC3, { TYPE_UVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "bitCount", TYPE_UVEC4, { TYPE_UVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
// findLSB
{ "findLSB", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_UVEC2, { TYPE_UVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_UVEC3, { TYPE_UVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findLSB", TYPE_UVEC4, { TYPE_UVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
// findMSB
{ "findMSB", TYPE_INT, { TYPE_INT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_IVEC2, { TYPE_IVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_IVEC3, { TYPE_IVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_IVEC4, { TYPE_IVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_UINT, { TYPE_UINT, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_UVEC2, { TYPE_UVEC2, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_UVEC3, { TYPE_UVEC3, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
{ "findMSB", TYPE_UVEC4, { TYPE_UVEC4, TYPE_VOID }, { "value" }, TAG_GLOBAL, true },
// umulExtended
{ "umulExtended", TYPE_VOID, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "umulExtended", TYPE_VOID, { TYPE_UVEC2, TYPE_UVEC2, TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "umulExtended", TYPE_VOID, { TYPE_UVEC3, TYPE_UVEC3, TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "umulExtended", TYPE_VOID, { TYPE_UVEC4, TYPE_UVEC4, TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
// imulExtended
{ "imulExtended", TYPE_VOID, { TYPE_INT, TYPE_INT, TYPE_INT, TYPE_INT, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "imulExtended", TYPE_VOID, { TYPE_IVEC2, TYPE_IVEC2, TYPE_IVEC2, TYPE_IVEC2, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "imulExtended", TYPE_VOID, { TYPE_IVEC3, TYPE_IVEC3, TYPE_IVEC3, TYPE_IVEC3, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
{ "imulExtended", TYPE_VOID, { TYPE_IVEC4, TYPE_IVEC4, TYPE_IVEC4, TYPE_IVEC4, TYPE_VOID }, { "x", "y", "msb", "lsb" }, TAG_GLOBAL, true },
// uaddCarry
{ "uaddCarry", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "y", "carry" }, TAG_GLOBAL, true },
{ "uaddCarry", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "x", "y", "carry" }, TAG_GLOBAL, true },
{ "uaddCarry", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "x", "y", "carry" }, TAG_GLOBAL, true },
{ "uaddCarry", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "x", "y", "carry" }, TAG_GLOBAL, true },
// usubBorrow
{ "usubBorrow", TYPE_UINT, { TYPE_UINT, TYPE_UINT, TYPE_UINT, TYPE_VOID }, { "x", "y", "borrow" }, TAG_GLOBAL, true },
{ "usubBorrow", TYPE_UVEC2, { TYPE_UVEC2, TYPE_UVEC2, TYPE_UVEC2, TYPE_VOID }, { "x", "y", "borrow" }, TAG_GLOBAL, true },
{ "usubBorrow", TYPE_UVEC3, { TYPE_UVEC3, TYPE_UVEC3, TYPE_UVEC3, TYPE_VOID }, { "x", "y", "borrow" }, TAG_GLOBAL, true },
{ "usubBorrow", TYPE_UVEC4, { TYPE_UVEC4, TYPE_UVEC4, TYPE_UVEC4, TYPE_VOID }, { "x", "y", "borrow" }, TAG_GLOBAL, true },
// ldexp
{ "ldexp", TYPE_FLOAT, { TYPE_FLOAT, TYPE_INT, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "ldexp", TYPE_VEC2, { TYPE_VEC2, TYPE_IVEC2, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "ldexp", TYPE_VEC3, { TYPE_VEC3, TYPE_IVEC3, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "ldexp", TYPE_VEC4, { TYPE_VEC4, TYPE_IVEC4, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
// frexp
{ "frexp", TYPE_FLOAT, { TYPE_FLOAT, TYPE_INT, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "frexp", TYPE_VEC2, { TYPE_VEC2, TYPE_IVEC2, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "frexp", TYPE_VEC3, { TYPE_VEC3, TYPE_IVEC3, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ "frexp", TYPE_VEC4, { TYPE_VEC4, TYPE_IVEC4, TYPE_VOID }, { "x", "exp" }, TAG_GLOBAL, true },
{ nullptr, TYPE_VOID, { TYPE_VOID }, { "" }, TAG_GLOBAL, false }
};
const ShaderLanguage::BuiltinFuncOutArgs ShaderLanguage::builtin_func_out_args[] = {
{ "modf", { 1, -1 } },
{ "umulExtended", { 2, 3 } },
{ "imulExtended", { 2, 3 } },
{ "uaddCarry", { 2, -1 } },
{ "usubBorrow", { 2, -1 } },
{ "ldexp", { 1, -1 } },
{ "frexp", { 1, -1 } },
{ nullptr, { 0, -1 } }
};
const ShaderLanguage::BuiltinFuncConstArgs ShaderLanguage::builtin_func_const_args[] = {
{ "textureGather", 2, 0, 3 },
{ nullptr, 0, 0, 0 }
};
bool ShaderLanguage::is_const_suffix_lut_initialized = false;
bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const FunctionInfo &p_function_info, OperatorNode *p_func, DataType *r_ret_type, StringName *r_ret_type_str, bool *r_is_custom_function) {
ERR_FAIL_COND_V(p_func->op != OP_CALL && p_func->op != OP_CONSTRUCT, false);
Vector<DataType> args;
Vector<StringName> args2;
Vector<int> args3;
ERR_FAIL_COND_V(p_func->arguments[0]->type != Node::NODE_TYPE_VARIABLE, false);
StringName name = static_cast<VariableNode *>(p_func->arguments[0])->name.operator String();
for (int i = 1; i < p_func->arguments.size(); i++) {
args.push_back(p_func->arguments[i]->get_datatype());
args2.push_back(p_func->arguments[i]->get_datatype_name());
args3.push_back(p_func->arguments[i]->get_array_size());
}
int argcount = args.size();
if (p_function_info.stage_functions.has(name)) {
//stage based function
const StageFunctionInfo &sf = p_function_info.stage_functions[name];
if (argcount != sf.arguments.size()) {
_set_error(vformat(RTR("Invalid number of arguments when calling stage function '%s', which expects %d arguments."), String(name), sf.arguments.size()));
return false;
}
//validate arguments
for (int i = 0; i < argcount; i++) {
if (args[i] != sf.arguments[i].type) {
_set_error(vformat(RTR("Invalid argument type when calling stage function '%s', type expected is '%s'."), String(name), get_datatype_name(sf.arguments[i].type)));
return false;
}
}
if (r_ret_type) {
*r_ret_type = sf.return_type;
}
if (r_ret_type_str) {
*r_ret_type_str = "";
}
return true;
}
bool failed_builtin = false;
bool unsupported_builtin = false;
int builtin_idx = 0;
if (argcount <= 4) {
// test builtins
int idx = 0;
while (builtin_func_defs[idx].name) {
if (completion_class != builtin_func_defs[idx].tag) {
idx++;
continue;
}
if (name == builtin_func_defs[idx].name) {
failed_builtin = true;
bool fail = false;
for (int i = 0; i < argcount; i++) {
if (p_func->arguments[i + 1]->type == Node::NODE_TYPE_ARRAY) {
const ArrayNode *anode = static_cast<const ArrayNode *>(p_func->arguments[i + 1]);
if (anode->call_expression == nullptr && !anode->is_indexed()) {
fail = true;
break;
}
}
if (get_scalar_type(args[i]) == args[i] && p_func->arguments[i + 1]->type == Node::NODE_TYPE_CONSTANT && convert_constant(static_cast<ConstantNode *>(p_func->arguments[i + 1]), builtin_func_defs[idx].args[i])) {
//all good, but needs implicit conversion later
} else if (args[i] != builtin_func_defs[idx].args[i]) {
fail = true;
break;
}
}
if (!fail) {
if (RenderingServer::get_singleton()->is_low_end()) {
if (builtin_func_defs[idx].high_end) {
fail = true;
unsupported_builtin = true;
builtin_idx = idx;
}
}
}
if (!fail && argcount < 4 && builtin_func_defs[idx].args[argcount] != TYPE_VOID) {
fail = true; //make sure the number of arguments matches
}
if (!fail) {
{
int constarg_idx = 0;
while (builtin_func_const_args[constarg_idx].name) {
if (String(name) == builtin_func_const_args[constarg_idx].name) {
int arg = builtin_func_const_args[constarg_idx].arg + 1;
if (p_func->arguments.size() <= arg) {
break;
}
int min = builtin_func_const_args[constarg_idx].min;
int max = builtin_func_const_args[constarg_idx].max;
bool error = false;
if (p_func->arguments[arg]->type == Node::NODE_TYPE_VARIABLE) {
const VariableNode *vn = static_cast<VariableNode *>(p_func->arguments[arg]);
bool is_const = false;
ConstantNode::Value value;
value.sint = -1;
_find_identifier(p_block, false, p_function_info, vn->name, nullptr, nullptr, &is_const, nullptr, nullptr, &value);
if (!is_const || value.sint < min || value.sint > max) {
error = true;
}
} else {
if (p_func->arguments[arg]->type == Node::NODE_TYPE_CONSTANT) {
const ConstantNode *cn = static_cast<ConstantNode *>(p_func->arguments[arg]);
if (cn->get_datatype() == TYPE_INT && cn->values.size() == 1) {
int value = cn->values[0].sint;
if (value < min || value > max) {
error = true;
}
} else {
error = true;
}
} else {
error = true;
}
}
if (error) {
_set_error(vformat(RTR("Expected integer constant within [%d..%d] range."), min, max));
return false;
}
}
constarg_idx++;
}
}
//make sure its not an out argument used in the wrong way
int outarg_idx = 0;
while (builtin_func_out_args[outarg_idx].name) {
if (String(name) == builtin_func_out_args[outarg_idx].name) {
for (int arg = 0; arg < BuiltinFuncOutArgs::MAX_ARGS; arg++) {
int arg_idx = builtin_func_out_args[outarg_idx].arguments[arg];
if (arg_idx == -1) {
break;
}
if (arg_idx < argcount) {
if (p_func->arguments[arg_idx + 1]->type != Node::NODE_TYPE_VARIABLE && p_func->arguments[arg_idx + 1]->type != Node::NODE_TYPE_MEMBER && p_func->arguments[arg_idx + 1]->type != Node::NODE_TYPE_ARRAY) {
_set_error(vformat(RTR("Argument %d of function '%s' is not a variable, array, or member."), arg_idx + 1, String(name)));
return false;
}
if (p_func->arguments[arg_idx + 1]->type == Node::NODE_TYPE_ARRAY) {
ArrayNode *mn = static_cast<ArrayNode *>(p_func->arguments[arg_idx + 1]);
if (mn->is_const) {
fail = true;
}
} else if (p_func->arguments[arg_idx + 1]->type == Node::NODE_TYPE_MEMBER) {
MemberNode *mn = static_cast<MemberNode *>(p_func->arguments[arg_idx + 1]);
if (mn->basetype_const) {
fail = true;
}
} else { // TYPE_VARIABLE
VariableNode *vn = static_cast<VariableNode *>(p_func->arguments[arg_idx + 1]);
if (vn->is_const) {
fail = true;
} else {
StringName varname = vn->name;
if (shader->uniforms.has(varname)) {
fail = true;
} else {
if (shader->varyings.has(varname)) {
_set_error(vformat(RTR("Varyings cannot be passed for the '%s' parameter."), "out"));
return false;
}
if (p_function_info.built_ins.has(varname)) {
BuiltInInfo info = p_function_info.built_ins[varname];
if (info.constant) {
fail = true;
}
}
}
}
}
if (fail) {
_set_error(vformat(RTR("A constant value cannot be passed for the '%s' parameter."), "out"));
return false;
}
StringName var_name;
if (p_func->arguments[arg_idx + 1]->type == Node::NODE_TYPE_ARRAY) {
var_name = static_cast<const ArrayNode *>(p_func->arguments[arg_idx + 1])->name;
} else if (p_func->arguments[arg_idx + 1]->type == Node::NODE_TYPE_MEMBER) {
Node *n = static_cast<const MemberNode *>(p_func->arguments[arg_idx + 1])->owner;
while (n->type == Node::NODE_TYPE_MEMBER) {
n = static_cast<const MemberNode *>(n)->owner;
}
if (n->type != Node::NODE_TYPE_VARIABLE && n->type != Node::NODE_TYPE_ARRAY) {
_set_error(vformat(RTR("Argument %d of function '%s' is not a variable, array, or member."), arg_idx + 1, String(name)));
return false;
}
if (n->type == Node::NODE_TYPE_VARIABLE) {
var_name = static_cast<const VariableNode *>(n)->name;
} else { // TYPE_ARRAY
var_name = static_cast<const ArrayNode *>(n)->name;
}
} else { // TYPE_VARIABLE
var_name = static_cast<const VariableNode *>(p_func->arguments[arg_idx + 1])->name;
}
const BlockNode *b = p_block;
bool valid = false;
while (b) {
if (b->variables.has(var_name) || p_function_info.built_ins.has(var_name)) {
valid = true;
break;
}
if (b->parent_function) {
for (int i = 0; i < b->parent_function->arguments.size(); i++) {
if (b->parent_function->arguments[i].name == var_name) {
valid = true;
break;
}
}
}
b = b->parent_block;
}
if (!valid) {
_set_error(vformat(RTR("Argument %d of function '%s' can only take a local variable, array, or member."), arg_idx + 1, String(name)));
return false;
}
}
}
}
outarg_idx++;
}
//implicitly convert values if possible
for (int i = 0; i < argcount; i++) {
if (get_scalar_type(args[i]) != args[i] || args[i] == builtin_func_defs[idx].args[i] || p_func->arguments[i + 1]->type != Node::NODE_TYPE_CONSTANT) {
//can't do implicit conversion here
continue;
}
//this is an implicit conversion
ConstantNode *constant = static_cast<ConstantNode *>(p_func->arguments[i + 1]);
ConstantNode *conversion = alloc_node<ConstantNode>();
conversion->datatype = builtin_func_defs[idx].args[i];
conversion->values.resize(1);
convert_constant(constant, builtin_func_defs[idx].args[i], conversion->values.ptrw());
p_func->arguments.write[i + 1] = conversion;
}
if (r_ret_type) {
*r_ret_type = builtin_func_defs[idx].rettype;
}
return true;
}
}
idx++;
}
}
if (unsupported_builtin) {
String arglist = "";
for (int i = 0; i < argcount; i++) {
if (i > 0) {
arglist += ", ";
}
arglist += get_datatype_name(builtin_func_defs[builtin_idx].args[i]);
}
_set_error(vformat(RTR("Built-in function \"%s(%s)\" is only supported on high-end platforms."), String(name), arglist));
return false;
}
if (failed_builtin) {
String arg_list;
for (int i = 0; i < argcount; i++) {
if (i > 0) {
arg_list += ",";
}
String arg_name;
if (args[i] == TYPE_STRUCT) {
arg_name = args2[i];
} else {
arg_name = get_datatype_name(args[i]);
}
if (args3[i] > 0) {
arg_name += "[";
arg_name += itos(args3[i]);
arg_name += "]";
}
arg_list += arg_name;
}
_set_error(vformat(RTR("Invalid arguments for the built-in function: \"%s(%s)\"."), String(name), arg_list));
return false;
}
// try existing functions..
StringName exclude_function;
BlockNode *block = p_block;
while (block) {
if (block->parent_function) {
exclude_function = block->parent_function->name;
}
block = block->parent_block;
}
if (name == exclude_function) {
_set_error(RTR("Recursion is not allowed."));
return false;
}
int last_arg_count = 0;
bool exists = false;
String arg_list = "";
for (int i = 0; i < shader->functions.size(); i++) {
if (name != shader->functions[i].name) {
continue;
}
exists = true;
if (!shader->functions[i].callable) {
_set_error(vformat(RTR("Function '%s' can't be called from source code."), String(name)));
return false;
}
FunctionNode *pfunc = shader->functions[i].function;
if (arg_list.is_empty()) {
for (int j = 0; j < pfunc->arguments.size(); j++) {
if (j > 0) {
arg_list += ", ";
}
String func_arg_name;
if (pfunc->arguments[j].type == TYPE_STRUCT) {
func_arg_name = pfunc->arguments[j].type_str;
} else {
func_arg_name = get_datatype_name(pfunc->arguments[j].type);
}
if (pfunc->arguments[j].array_size > 0) {
func_arg_name += "[";
func_arg_name += itos(pfunc->arguments[j].array_size);
func_arg_name += "]";
}
arg_list += func_arg_name;
}
}
if (pfunc->arguments.size() != args.size()) {
last_arg_count = pfunc->arguments.size();
continue;
}
bool fail = false;
for (int j = 0; j < args.size(); j++) {
if (get_scalar_type(args[j]) == args[j] && p_func->arguments[j + 1]->type == Node::NODE_TYPE_CONSTANT && args3[j] == 0 && convert_constant(static_cast<ConstantNode *>(p_func->arguments[j + 1]), pfunc->arguments[j].type)) {
//all good, but it needs implicit conversion later
} else if (args[j] != pfunc->arguments[j].type || (args[j] == TYPE_STRUCT && args2[j] != pfunc->arguments[j].type_str) || args3[j] != pfunc->arguments[j].array_size) {
String func_arg_name;
if (pfunc->arguments[j].type == TYPE_STRUCT) {
func_arg_name = pfunc->arguments[j].type_str;
} else {
func_arg_name = get_datatype_name(pfunc->arguments[j].type);
}
if (pfunc->arguments[j].array_size > 0) {
func_arg_name += "[";
func_arg_name += itos(pfunc->arguments[j].array_size);
func_arg_name += "]";
}
String arg_name;
if (args[j] == TYPE_STRUCT) {
arg_name = args2[j];
} else {
arg_name = get_datatype_name(args[j]);
}
if (args3[j] > 0) {
arg_name += "[";
arg_name += itos(args3[j]);
arg_name += "]";
}
_set_error(vformat(RTR("Invalid argument for \"%s(%s)\" function: argument %d should be %s but is %s."), String(name), arg_list, j + 1, func_arg_name, arg_name));
fail = true;
break;
}
}
if (!fail) {
//implicitly convert values if possible
for (int k = 0; k < args.size(); k++) {
if (get_scalar_type(args[k]) != args[k] || args[k] == pfunc->arguments[k].type || p_func->arguments[k + 1]->type != Node::NODE_TYPE_CONSTANT) {
//can't do implicit conversion here
continue;
}
//this is an implicit conversion
ConstantNode *constant = static_cast<ConstantNode *>(p_func->arguments[k + 1]);
ConstantNode *conversion = alloc_node<ConstantNode>();
conversion->datatype = pfunc->arguments[k].type;
conversion->values.resize(1);
convert_constant(constant, pfunc->arguments[k].type, conversion->values.ptrw());
p_func->arguments.write[k + 1] = conversion;
}
if (r_ret_type) {
*r_ret_type = pfunc->return_type;
if (pfunc->return_type == TYPE_STRUCT) {
*r_ret_type_str = pfunc->return_struct_name;
}
}
if (r_is_custom_function) {
*r_is_custom_function = true;
}
return true;
}
}
if (exists) {
if (last_arg_count > args.size()) {
_set_error(vformat(RTR("Too few arguments for \"%s(%s)\" call. Expected at least %d but received %d."), String(name), arg_list, last_arg_count, args.size()));
} else if (last_arg_count < args.size()) {
_set_error(vformat(RTR("Too many arguments for \"%s(%s)\" call. Expected at most %d but received %d."), String(name), arg_list, last_arg_count, args.size()));
}
}
return false;
}
bool ShaderLanguage::_compare_datatypes(DataType p_datatype_a, String p_datatype_name_a, int p_array_size_a, DataType p_datatype_b, String p_datatype_name_b, int p_array_size_b) {
bool result = true;
if (p_datatype_a == TYPE_STRUCT || p_datatype_b == TYPE_STRUCT) {
if (p_datatype_name_a != p_datatype_name_b) {
result = false;
}
} else {
if (p_datatype_a != p_datatype_b) {
result = false;
}
}
if (p_array_size_a != p_array_size_b) {
result = false;
}
if (!result) {
String type_name = p_datatype_a == TYPE_STRUCT ? p_datatype_name_a : get_datatype_name(p_datatype_a);
if (p_array_size_a > 0) {
type_name += "[";
type_name += itos(p_array_size_a);
type_name += "]";
}
String type_name2 = p_datatype_b == TYPE_STRUCT ? p_datatype_name_b : get_datatype_name(p_datatype_b);
if (p_array_size_b > 0) {
type_name2 += "[";
type_name2 += itos(p_array_size_b);
type_name2 += "]";
}
_set_error(vformat(RTR("Invalid assignment of '%s' to '%s'."), type_name2, type_name));
}
return result;
}
bool ShaderLanguage::_compare_datatypes_in_nodes(Node *a, Node *b) {
return _compare_datatypes(a->get_datatype(), a->get_datatype_name(), a->get_array_size(), b->get_datatype(), b->get_datatype_name(), b->get_array_size());
}
bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const FunctionInfo &p_function_info, OperatorNode *p_func, int *r_complete_arg) {
TkPos pos = _get_tkpos();
Token tk = _get_token();
if (tk.type == TK_PARENTHESIS_CLOSE) {
return true;
}
_set_tkpos(pos);
while (true) {
if (r_complete_arg) {
pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_CURSOR) {
*r_complete_arg = p_func->arguments.size() - 1;
} else {
_set_tkpos(pos);
}
}
Node *arg = _parse_and_reduce_expression(p_block, p_function_info);
if (!arg) {
return false;
}
if (is_const_decl && arg->type == Node::NODE_TYPE_VARIABLE) {
const VariableNode *var = static_cast<const VariableNode *>(arg);
if (!var->is_const) {
_set_error(RTR("Expected constant expression."));
return false;
}
}
p_func->arguments.push_back(arg);
tk = _get_token();
if (tk.type == TK_PARENTHESIS_CLOSE) {
return true;
} else if (tk.type != TK_COMMA) {
// something is broken
_set_error(RTR("Expected ',' or ')' after argument."));
return false;
}
}
return true;
}
bool ShaderLanguage::is_token_operator(TokenType p_type) {
return (p_type == TK_OP_EQUAL ||
p_type == TK_OP_NOT_EQUAL ||
p_type == TK_OP_LESS ||
p_type == TK_OP_LESS_EQUAL ||
p_type == TK_OP_GREATER ||
p_type == TK_OP_GREATER_EQUAL ||
p_type == TK_OP_AND ||
p_type == TK_OP_OR ||
p_type == TK_OP_NOT ||
p_type == TK_OP_ADD ||
p_type == TK_OP_SUB ||
p_type == TK_OP_MUL ||
p_type == TK_OP_DIV ||
p_type == TK_OP_MOD ||
p_type == TK_OP_SHIFT_LEFT ||
p_type == TK_OP_SHIFT_RIGHT ||
p_type == TK_OP_ASSIGN ||
p_type == TK_OP_ASSIGN_ADD ||
p_type == TK_OP_ASSIGN_SUB ||
p_type == TK_OP_ASSIGN_MUL ||
p_type == TK_OP_ASSIGN_DIV ||
p_type == TK_OP_ASSIGN_MOD ||
p_type == TK_OP_ASSIGN_SHIFT_LEFT ||
p_type == TK_OP_ASSIGN_SHIFT_RIGHT ||
p_type == TK_OP_ASSIGN_BIT_AND ||
p_type == TK_OP_ASSIGN_BIT_OR ||
p_type == TK_OP_ASSIGN_BIT_XOR ||
p_type == TK_OP_BIT_AND ||
p_type == TK_OP_BIT_OR ||
p_type == TK_OP_BIT_XOR ||
p_type == TK_OP_BIT_INVERT ||
p_type == TK_OP_INCREMENT ||
p_type == TK_OP_DECREMENT ||
p_type == TK_QUESTION ||
p_type == TK_COLON);
}
bool ShaderLanguage::is_token_operator_assign(TokenType p_type) {
return (p_type == TK_OP_ASSIGN ||
p_type == TK_OP_ASSIGN_ADD ||
p_type == TK_OP_ASSIGN_SUB ||
p_type == TK_OP_ASSIGN_MUL ||
p_type == TK_OP_ASSIGN_DIV ||
p_type == TK_OP_ASSIGN_MOD ||
p_type == TK_OP_ASSIGN_SHIFT_LEFT ||
p_type == TK_OP_ASSIGN_SHIFT_RIGHT ||
p_type == TK_OP_ASSIGN_BIT_AND ||
p_type == TK_OP_ASSIGN_BIT_OR ||
p_type == TK_OP_ASSIGN_BIT_XOR);
}
bool ShaderLanguage::is_token_hint(TokenType p_type) {
return int(p_type) > int(TK_RENDER_MODE) && int(p_type) < int(TK_SHADER_TYPE);
}
bool ShaderLanguage::convert_constant(ConstantNode *p_constant, DataType p_to_type, ConstantNode::Value *p_value) {
if (p_constant->datatype == p_to_type) {
if (p_value) {
for (int i = 0; i < p_constant->values.size(); i++) {
p_value[i] = p_constant->values[i];
}
}
return true;
} else if (p_constant->datatype == TYPE_INT && p_to_type == TYPE_FLOAT) {
if (p_value) {
p_value->real = p_constant->values[0].sint;
}
return true;
} else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_FLOAT) {
if (p_value) {
p_value->real = p_constant->values[0].uint;
}
return true;
} else if (p_constant->datatype == TYPE_INT && p_to_type == TYPE_UINT) {
if (p_constant->values[0].sint < 0) {
return false;
}
if (p_value) {
p_value->uint = p_constant->values[0].sint;
}
return true;
} else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_INT) {
if (p_constant->values[0].uint > 0x7FFFFFFF) {
return false;
}
if (p_value) {
p_value->sint = p_constant->values[0].uint;
}
return true;
} else {
return false;
}
}
bool ShaderLanguage::is_scalar_type(DataType p_type) {
return p_type == TYPE_BOOL || p_type == TYPE_INT || p_type == TYPE_UINT || p_type == TYPE_FLOAT;
}
bool ShaderLanguage::is_float_type(DataType p_type) {
switch (p_type) {
case TYPE_FLOAT:
case TYPE_VEC2:
case TYPE_VEC3:
case TYPE_VEC4:
case TYPE_MAT2:
case TYPE_MAT3:
case TYPE_MAT4:
case TYPE_SAMPLER2D:
case TYPE_SAMPLER2DARRAY:
case TYPE_SAMPLER3D:
case TYPE_SAMPLERCUBE:
case TYPE_SAMPLERCUBEARRAY: {
return true;
}
default: {
return false;
}
}
}
bool ShaderLanguage::is_sampler_type(DataType p_type) {
return p_type > TYPE_MAT4 && p_type < TYPE_STRUCT;
}
Variant ShaderLanguage::constant_value_to_variant(const Vector<ShaderLanguage::ConstantNode::Value> &p_value, DataType p_type, int p_array_size, ShaderLanguage::ShaderNode::Uniform::Hint p_hint) {
int array_size = p_array_size;
if (p_value.size() > 0) {
Variant value;
switch (p_type) {
case ShaderLanguage::TYPE_BOOL:
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].boolean);
}
value = Variant(array);
} else {
value = Variant(p_value[0].boolean);
}
break;
case ShaderLanguage::TYPE_BVEC2:
array_size *= 2;
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].boolean);
}
value = Variant(array);
} else {
value = Variant(p_value[0].boolean);
}
break;
case ShaderLanguage::TYPE_BVEC3:
array_size *= 3;
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].boolean);
}
value = Variant(array);
} else {
value = Variant(p_value[0].boolean);
}
break;
case ShaderLanguage::TYPE_BVEC4:
array_size *= 4;
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].boolean);
}
value = Variant(array);
} else {
value = Variant(p_value[0].boolean);
}
break;
case ShaderLanguage::TYPE_INT:
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].sint);
}
value = Variant(array);
} else {
value = Variant(p_value[0].sint);
}
break;
case ShaderLanguage::TYPE_IVEC2:
if (array_size > 0) {
array_size *= 2;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].sint);
}
value = Variant(array);
} else {
value = Variant(Vector2i(p_value[0].sint, p_value[1].sint));
}
break;
case ShaderLanguage::TYPE_IVEC3:
if (array_size > 0) {
array_size *= 3;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].sint);
}
value = Variant(array);
} else {
value = Variant(Vector3i(p_value[0].sint, p_value[1].sint, p_value[2].sint));
}
break;
case ShaderLanguage::TYPE_IVEC4:
if (array_size > 0) {
array_size *= 4;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].sint);
}
value = Variant(array);
} else {
value = Variant(Vector4i(p_value[0].sint, p_value[1].sint, p_value[2].sint, p_value[3].sint));
}
break;
case ShaderLanguage::TYPE_UINT:
if (array_size > 0) {
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].uint);
}
value = Variant(array);
} else {
value = Variant(p_value[0].uint);
}
break;
case ShaderLanguage::TYPE_UVEC2:
if (array_size > 0) {
array_size *= 2;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].uint);
}
value = Variant(array);
} else {
value = Variant(Vector2i(p_value[0].uint, p_value[1].uint));
}
break;
case ShaderLanguage::TYPE_UVEC3:
if (array_size > 0) {
array_size *= 3;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].uint);
}
value = Variant(array);
} else {
value = Variant(Vector3i(p_value[0].uint, p_value[1].uint, p_value[2].uint));
}
break;
case ShaderLanguage::TYPE_UVEC4:
if (array_size > 0) {
array_size *= 4;
PackedInt32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].uint);
}
value = Variant(array);
} else {
value = Variant(Vector4i(p_value[0].uint, p_value[1].uint, p_value[2].uint, p_value[3].uint));
}
break;
case ShaderLanguage::TYPE_FLOAT:
if (array_size > 0) {
PackedFloat32Array array;
for (int i = 0; i < array_size; i++) {
array.push_back(p_value[i].real);
}
value = Variant(array);
} else {
value = Variant(p_value[0].real);
}
break;
case ShaderLanguage::TYPE_VEC2:
if (array_size > 0) {
array_size *= 2;
PackedVector2Array array;
for (int i = 0; i < array_size; i += 2) {
array.push_back(Vector2(p_value[i].real, p_value[i + 1].real));
}
value = Variant(array);
} else {
value = Variant(Vector2(p_value[0].real, p_value[1].real));
}
break;
case ShaderLanguage::TYPE_VEC3:
if (array_size > 0) {
array_size *= 3;
if (p_hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
PackedColorArray array;
for (int i = 0; i < array_size; i += 3) {
array.push_back(Color(p_value[i].real, p_value[i + 1].real, p_value[i + 2].real));
}
value = Variant(array);
} else {
PackedVector3Array array;
for (int i = 0; i < array_size; i += 3) {
array.push_back(Vector3(p_value[i].real, p_value[i + 1].real, p_value[i + 2].real));
}
value = Variant(array);
}
} else {
if (p_hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
value = Variant(Color(p_value[0].real, p_value[1].real, p_value[2].real));
} else {
value = Variant(Vector3(p_value[0].real, p_value[1].real, p_value[2].real));
}
}
break;
case ShaderLanguage::TYPE_VEC4:
if (array_size > 0) {
array_size *= 4;
if (p_hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
PackedColorArray array;
for (int i = 0; i < array_size; i += 4) {
array.push_back(Color(p_value[i].real, p_value[i + 1].real, p_value[i + 2].real, p_value[i + 3].real));
}
value = Variant(array);
} else {
PackedFloat32Array array;
for (int i = 0; i < array_size; i += 4) {
array.push_back(p_value[i].real);
array.push_back(p_value[i + 1].real);
array.push_back(p_value[i + 2].real);
array.push_back(p_value[i + 3].real);
}
value = Variant(array);
}
} else {
if (p_hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
value = Variant(Color(p_value[0].real, p_value[1].real, p_value[2].real, p_value[3].real));
} else {
value = Variant(Vector4(p_value[0].real, p_value[1].real, p_value[2].real, p_value[3].real));
}
}
break;
case ShaderLanguage::TYPE_MAT2:
if (array_size > 0) {
array_size *= 4;
PackedFloat32Array array;
for (int i = 0; i < array_size; i += 4) {
array.push_back(p_value[i].real);
array.push_back(p_value[i + 1].real);
array.push_back(p_value[i + 2].real);
array.push_back(p_value[i + 3].real);
}
value = Variant(array);
} else {
value = Variant(Transform2D(p_value[0].real, p_value[2].real, p_value[1].real, p_value[3].real, 0.0, 0.0));
}
break;
case ShaderLanguage::TYPE_MAT3: {
if (array_size > 0) {
array_size *= 9;
PackedFloat32Array array;
for (int i = 0; i < array_size; i += 9) {
for (int j = 0; j < 9; j++) {
array.push_back(p_value[i + j].real);
}
}
value = Variant(array);
} else {
Basis p;
p[0][0] = p_value[0].real;
p[0][1] = p_value[1].real;
p[0][2] = p_value[2].real;
p[1][0] = p_value[3].real;
p[1][1] = p_value[4].real;
p[1][2] = p_value[5].real;
p[2][0] = p_value[6].real;
p[2][1] = p_value[7].real;
p[2][2] = p_value[8].real;
value = Variant(p);
}
break;
}
case ShaderLanguage::TYPE_MAT4: {
if (array_size > 0) {
array_size *= 16;
PackedFloat32Array array;
for (int i = 0; i < array_size; i += 16) {
for (int j = 0; j < 16; j++) {
array.push_back(p_value[i + j].real);
}
}
value = Variant(array);
} else {
Projection p = Projection(Vector4(p_value[0].real, p_value[1].real, p_value[2].real, p_value[3].real),
Vector4(p_value[4].real, p_value[5].real, p_value[6].real, p_value[7].real),
Vector4(p_value[8].real, p_value[9].real, p_value[10].real, p_value[11].real),
Vector4(p_value[12].real, p_value[13].real, p_value[14].real, p_value[15].real));
value = Variant(p);
}
break;
}
case ShaderLanguage::TYPE_ISAMPLER2DARRAY:
case ShaderLanguage::TYPE_ISAMPLER2D:
case ShaderLanguage::TYPE_ISAMPLER3D:
case ShaderLanguage::TYPE_SAMPLER2DARRAY:
case ShaderLanguage::TYPE_SAMPLER2D:
case ShaderLanguage::TYPE_SAMPLER3D:
case ShaderLanguage::TYPE_USAMPLER2DARRAY:
case ShaderLanguage::TYPE_USAMPLER2D:
case ShaderLanguage::TYPE_USAMPLER3D:
case ShaderLanguage::TYPE_SAMPLERCUBE:
case ShaderLanguage::TYPE_SAMPLERCUBEARRAY: {
// Texture types, likely not relevant here.
break;
}
case ShaderLanguage::TYPE_STRUCT:
break;
case ShaderLanguage::TYPE_VOID:
break;
case ShaderLanguage::TYPE_MAX:
break;
}
return value;
}
return Variant();
}
PropertyInfo ShaderLanguage::uniform_to_property_info(const ShaderNode::Uniform &p_uniform) {
PropertyInfo pi;
switch (p_uniform.type) {
case ShaderLanguage::TYPE_VOID:
pi.type = Variant::NIL;
break;
case ShaderLanguage::TYPE_BOOL:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::BOOL;
}
break;
case ShaderLanguage::TYPE_BVEC2:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::INT;
pi.hint = PROPERTY_HINT_FLAGS;
pi.hint_string = "x,y";
}
break;
case ShaderLanguage::TYPE_BVEC3:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::INT;
pi.hint = PROPERTY_HINT_FLAGS;
pi.hint_string = "x,y,z";
}
break;
case ShaderLanguage::TYPE_BVEC4:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::INT;
pi.hint = PROPERTY_HINT_FLAGS;
pi.hint_string = "x,y,z,w";
}
break;
case ShaderLanguage::TYPE_UINT:
case ShaderLanguage::TYPE_INT: {
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::INT;
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_RANGE) {
pi.hint = PROPERTY_HINT_RANGE;
pi.hint_string = rtos(p_uniform.hint_range[0]) + "," + rtos(p_uniform.hint_range[1]) + "," + rtos(p_uniform.hint_range[2]);
}
}
} break;
case ShaderLanguage::TYPE_UVEC2:
case ShaderLanguage::TYPE_IVEC2: {
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::VECTOR2I;
}
} break;
case ShaderLanguage::TYPE_UVEC3:
case ShaderLanguage::TYPE_IVEC3: {
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::VECTOR3I;
}
} break;
case ShaderLanguage::TYPE_UVEC4:
case ShaderLanguage::TYPE_IVEC4: {
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_INT32_ARRAY;
} else {
pi.type = Variant::VECTOR4I;
}
} break;
case ShaderLanguage::TYPE_FLOAT: {
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_FLOAT32_ARRAY;
} else {
pi.type = Variant::FLOAT;
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_RANGE) {
pi.hint = PROPERTY_HINT_RANGE;
pi.hint_string = rtos(p_uniform.hint_range[0]) + "," + rtos(p_uniform.hint_range[1]) + "," + rtos(p_uniform.hint_range[2]);
}
}
} break;
case ShaderLanguage::TYPE_VEC2:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_VECTOR2_ARRAY;
} else {
pi.type = Variant::VECTOR2;
}
break;
case ShaderLanguage::TYPE_VEC3:
if (p_uniform.array_size > 0) {
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
pi.hint = PROPERTY_HINT_COLOR_NO_ALPHA;
pi.type = Variant::PACKED_COLOR_ARRAY;
} else {
pi.type = Variant::PACKED_VECTOR3_ARRAY;
}
} else {
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
pi.hint = PROPERTY_HINT_COLOR_NO_ALPHA;
pi.type = Variant::COLOR;
} else {
pi.type = Variant::VECTOR3;
}
}
break;
case ShaderLanguage::TYPE_VEC4: {
if (p_uniform.array_size > 0) {
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
pi.type = Variant::PACKED_COLOR_ARRAY;
} else {
pi.type = Variant::PACKED_FLOAT32_ARRAY;
}
} else {
if (p_uniform.hint == ShaderLanguage::ShaderNode::Uniform::HINT_SOURCE_COLOR) {
pi.type = Variant::COLOR;
} else {
pi.type = Variant::VECTOR4;
}
}
} break;
case ShaderLanguage::TYPE_MAT2:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_FLOAT32_ARRAY;
} else {
pi.type = Variant::TRANSFORM2D;
}
break;
case ShaderLanguage::TYPE_MAT3:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_FLOAT32_ARRAY;
} else {
pi.type = Variant::BASIS;
}
break;
case ShaderLanguage::TYPE_MAT4:
if (p_uniform.array_size > 0) {
pi.type = Variant::PACKED_FLOAT32_ARRAY;
} else {
pi.type = Variant::PROJECTION;
}
break;
case ShaderLanguage::TYPE_SAMPLER2D:
case ShaderLanguage::TYPE_ISAMPLER2D:
case ShaderLanguage::TYPE_USAMPLER2D: {
if (p_uniform.array_size > 0) {
pi.type = Variant::ARRAY;
pi.hint = PROPERTY_HINT_ARRAY_TYPE;
pi.hint_string = MAKE_RESOURCE_TYPE_HINT("Texture2D");
} else {
pi.type = Variant::OBJECT;
pi.hint = PROPERTY_HINT_RESOURCE_TYPE;
pi.hint_string = "Texture2D";
}
} break;
case ShaderLanguage::TYPE_SAMPLER2DARRAY:
case ShaderLanguage::TYPE_ISAMPLER2DARRAY:
case ShaderLanguage::TYPE_USAMPLER2DARRAY:
case ShaderLanguage::TYPE_SAMPLERCUBE:
case ShaderLanguage::TYPE_SAMPLERCUBEARRAY: {
if (p_uniform.array_size > 0) {
pi.type = Variant::ARRAY;
pi.hint = PROPERTY_HINT_ARRAY_TYPE;
pi.hint_string = MAKE_RESOURCE_TYPE_HINT("TextureLayered");
} else {
pi.type = Variant::OBJECT;
pi.hint = PROPERTY_HINT_RESOURCE_TYPE;
pi.hint_string = "TextureLayered";
}
} break;
case ShaderLanguage::TYPE_SAMPLER3D:
case ShaderLanguage::TYPE_ISAMPLER3D:
case ShaderLanguage::TYPE_USAMPLER3D: {
if (p_uniform.array_size > 0) {
pi.type = Variant::ARRAY;
pi.hint = PROPERTY_HINT_ARRAY_TYPE;
pi.hint_string = MAKE_RESOURCE_TYPE_HINT("Texture3D");
} else {
pi.type = Variant::OBJECT;
pi.hint = PROPERTY_HINT_RESOURCE_TYPE;
pi.hint_string = "Texture3D";
}
} break;
case ShaderLanguage::TYPE_STRUCT: {
// FIXME: Implement this.
} break;
case ShaderLanguage::TYPE_MAX:
break;
}
return pi;
}
uint32_t ShaderLanguage::get_datatype_size(ShaderLanguage::DataType p_type) {
switch (p_type) {
case TYPE_VOID:
return 0;
case TYPE_BOOL:
return 4;
case TYPE_BVEC2:
return 8;
case TYPE_BVEC3:
return 12;
case TYPE_BVEC4:
return 16;
case TYPE_INT:
return 4;
case TYPE_IVEC2:
return 8;
case TYPE_IVEC3:
return 12;
case TYPE_IVEC4:
return 16;
case TYPE_UINT:
return 4;
case TYPE_UVEC2:
return 8;
case TYPE_UVEC3:
return 12;
case TYPE_UVEC4:
return 16;
case TYPE_FLOAT:
return 4;
case TYPE_VEC2:
return 8;
case TYPE_VEC3:
return 12;
case TYPE_VEC4:
return 16;
case TYPE_MAT2:
return 32; // 4 * 4 + 4 * 4
case TYPE_MAT3:
return 48; // 4 * 4 + 4 * 4 + 4 * 4
case TYPE_MAT4:
return 64;
case TYPE_SAMPLER2D:
return 16;
case TYPE_ISAMPLER2D:
return 16;
case TYPE_USAMPLER2D:
return 16;
case TYPE_SAMPLER2DARRAY:
return 16;
case TYPE_ISAMPLER2DARRAY:
return 16;
case TYPE_USAMPLER2DARRAY:
return 16;
case TYPE_SAMPLER3D:
return 16;
case TYPE_ISAMPLER3D:
return 16;
case TYPE_USAMPLER3D:
return 16;
case TYPE_SAMPLERCUBE:
return 16;
case TYPE_SAMPLERCUBEARRAY:
return 16;
case TYPE_STRUCT:
return 0;
case TYPE_MAX: {
ERR_FAIL_V(0);
};
}
ERR_FAIL_V(0);
}
void ShaderLanguage::get_keyword_list(List<String> *r_keywords) {
HashSet<String> kws;
int idx = 0;
while (keyword_list[idx].text) {
kws.insert(keyword_list[idx].text);
idx++;
}
idx = 0;
while (builtin_func_defs[idx].name) {
kws.insert(builtin_func_defs[idx].name);
idx++;
}
for (const String &E : kws) {
r_keywords->push_back(E);
}
}
bool ShaderLanguage::is_control_flow_keyword(String p_keyword) {
return p_keyword == "break" ||
p_keyword == "case" ||
p_keyword == "continue" ||
p_keyword == "default" ||
p_keyword == "do" ||
p_keyword == "else" ||
p_keyword == "for" ||
p_keyword == "if" ||
p_keyword == "return" ||
p_keyword == "switch" ||
p_keyword == "while";
}
void ShaderLanguage::get_builtin_funcs(List<String> *r_keywords) {
HashSet<String> kws;
int idx = 0;
while (builtin_func_defs[idx].name) {
kws.insert(builtin_func_defs[idx].name);
idx++;
}
for (const String &E : kws) {
r_keywords->push_back(E);
}
}
ShaderLanguage::DataType ShaderLanguage::get_scalar_type(DataType p_type) {
static const DataType scalar_types[] = {
TYPE_VOID,
TYPE_BOOL,
TYPE_BOOL,
TYPE_BOOL,
TYPE_BOOL,
TYPE_INT,
TYPE_INT,
TYPE_INT,
TYPE_INT,
TYPE_UINT,
TYPE_UINT,
TYPE_UINT,
TYPE_UINT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_INT,
TYPE_UINT,
TYPE_FLOAT,
TYPE_INT,
TYPE_UINT,
TYPE_FLOAT,
TYPE_INT,
TYPE_UINT,
TYPE_FLOAT,
TYPE_FLOAT,
TYPE_VOID,
};
static_assert(sizeof(scalar_types) / sizeof(*scalar_types) == TYPE_MAX);
return scalar_types[p_type];
}
int ShaderLanguage::get_cardinality(DataType p_type) {
static const int cardinality_table[] = {
0,
1,
2,
3,
4,
1,
2,
3,
4,
1,
2,
3,
4,
1,
2,
3,
4,
4,
9,
16,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
};
static_assert(sizeof(cardinality_table) / sizeof(*cardinality_table) == TYPE_MAX);
return cardinality_table[p_type];
}
bool ShaderLanguage::_get_completable_identifier(BlockNode *p_block, CompletionType p_type, StringName &identifier) {
identifier = StringName();
TkPos pos = { 0, 0 };
Token tk = _get_token();
if (tk.type == TK_IDENTIFIER) {
identifier = tk.text;
pos = _get_tkpos();
tk = _get_token();
}
if (tk.type == TK_CURSOR) {
completion_type = p_type;
completion_line = tk_line;
completion_block = p_block;
pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_IDENTIFIER) {
identifier = identifier.operator String() + tk.text.operator String();
} else {
_set_tkpos(pos);
}
return true;
} else if (identifier != StringName()) {
_set_tkpos(pos);
}
return false;
}
bool ShaderLanguage::_is_operator_assign(Operator p_op) const {
switch (p_op) {
case OP_ASSIGN:
case OP_ASSIGN_ADD:
case OP_ASSIGN_SUB:
case OP_ASSIGN_MUL:
case OP_ASSIGN_DIV:
case OP_ASSIGN_MOD:
case OP_ASSIGN_SHIFT_LEFT:
case OP_ASSIGN_SHIFT_RIGHT:
case OP_ASSIGN_BIT_AND:
case OP_ASSIGN_BIT_OR:
case OP_ASSIGN_BIT_XOR:
return true;
default:
return false;
}
}
bool ShaderLanguage::_validate_varying_assign(ShaderNode::Varying &p_varying, String *r_message) {
if (current_function != "vertex" && current_function != "fragment") {
*r_message = vformat(RTR("Varying may not be assigned in the '%s' function."), current_function);
return false;
}
switch (p_varying.stage) {
case ShaderNode::Varying::STAGE_UNKNOWN: // first assign
if (current_function == varying_function_names.vertex) {
if (p_varying.type < TYPE_INT) {
*r_message = vformat(RTR("Varying with '%s' data type may only be assigned in the 'fragment' function."), get_datatype_name(p_varying.type));
return false;
}
p_varying.stage = ShaderNode::Varying::STAGE_VERTEX;
} else if (current_function == varying_function_names.fragment) {
p_varying.stage = ShaderNode::Varying::STAGE_FRAGMENT;
}
break;
case ShaderNode::Varying::STAGE_VERTEX_TO_FRAGMENT_LIGHT:
case ShaderNode::Varying::STAGE_VERTEX:
if (current_function == varying_function_names.fragment) {
*r_message = RTR("Varyings which assigned in 'vertex' function may not be reassigned in 'fragment' or 'light'.");
return false;
}
break;
case ShaderNode::Varying::STAGE_FRAGMENT_TO_LIGHT:
case ShaderNode::Varying::STAGE_FRAGMENT:
if (current_function == varying_function_names.vertex) {
*r_message = RTR("Varyings which assigned in 'fragment' function may not be reassigned in 'vertex' or 'light'.");
return false;
}
break;
default:
break;
}
return true;
}
bool ShaderLanguage::_check_node_constness(const Node *p_node) const {
switch (p_node->type) {
case Node::NODE_TYPE_OPERATOR: {
const OperatorNode *op_node = static_cast<const OperatorNode *>(p_node);
for (int i = int(op_node->op == OP_CALL); i < op_node->arguments.size(); i++) {
if (!_check_node_constness(op_node->arguments[i])) {
return false;
}
}
} break;
case Node::NODE_TYPE_CONSTANT:
break;
case Node::NODE_TYPE_VARIABLE: {
const VariableNode *var_node = static_cast<const VariableNode *>(p_node);
if (!var_node->is_const) {
return false;
}
} break;
case Node::NODE_TYPE_ARRAY: {
const ArrayNode *arr_node = static_cast<const ArrayNode *>(p_node);
if (!arr_node->is_const) {
return false;
}
} break;
default:
return false;
}
return true;
}
bool ShaderLanguage::_validate_assign(Node *p_node, const FunctionInfo &p_function_info, String *r_message) {
if (p_node->type == Node::NODE_TYPE_OPERATOR) {
OperatorNode *op = static_cast<OperatorNode *>(p_node);
if (op->op == OP_INDEX) {
return _validate_assign(op->arguments[0], p_function_info, r_message);
} else if (_is_operator_assign(op->op)) {
//chained assignment
return _validate_assign(op->arguments[1], p_function_info, r_message);
} else if (op->op == OP_CALL) {
if (r_message) {
*r_message = RTR("Assignment to function.");
}
return false;
}
} else if (p_node->type == Node::NODE_TYPE_MEMBER) {
MemberNode *member = static_cast<MemberNode *>(p_node);
if (member->has_swizzling_duplicates) {
if (r_message) {
*r_message = RTR("Swizzling assignment contains duplicates.");
}
return false;
}
return _validate_assign(member->owner, p_function_info, r_message);
} else if (p_node->type == Node::NODE_TYPE_VARIABLE) {
VariableNode *var = static_cast<VariableNode *>(p_node);
if (shader->uniforms.has(var->name)) {
if (r_message) {
*r_message = RTR("Assignment to uniform.");
}
return false;
}
if (shader->constants.has(var->name) || var->is_const) {
if (r_message) {
*r_message = RTR("Constants cannot be modified.");
}
return false;
}
if (!(p_function_info.built_ins.has(var->name) && p_function_info.built_ins[var->name].constant)) {
return true;
}
} else if (p_node->type == Node::NODE_TYPE_ARRAY) {
ArrayNode *arr = static_cast<ArrayNode *>(p_node);
if (shader->constants.has(arr->name) || arr->is_const) {
if (r_message) {
*r_message = RTR("Constants cannot be modified.");
}
return false;
}
return true;
}
if (r_message) {
*r_message = "Assignment to constant expression.";
}
return false;
}
bool ShaderLanguage::_propagate_function_call_sampler_uniform_settings(StringName p_name, int p_argument, TextureFilter p_filter, TextureRepeat p_repeat) {
for (int i = 0; i < shader->functions.size(); i++) {
if (shader->functions[i].name == p_name) {
ERR_FAIL_INDEX_V(p_argument, shader->functions[i].function->arguments.size(), false);
FunctionNode::Argument *arg = &shader->functions[i].function->arguments.write[p_argument];
if (arg->tex_builtin_check) {
_set_error(vformat(RTR("Sampler argument %d of function '%s' called more than once using both built-ins and uniform textures, this is not supported (use either one or the other)."), p_argument, String(p_name)));
return false;
} else if (arg->tex_argument_check) {
//was checked, verify that filter and repeat are the same
if (arg->tex_argument_filter == p_filter && arg->tex_argument_repeat == p_repeat) {
return true;
} else {
_set_error(vformat(RTR("Sampler argument %d of function '%s' called more than once using textures that differ in either filter or repeat setting."), p_argument, String(p_name)));
return false;
}
} else {
arg->tex_argument_check = true;
arg->tex_argument_filter = p_filter;
arg->tex_argument_repeat = p_repeat;
for (KeyValue<StringName, HashSet<int>> &E : arg->tex_argument_connect) {
for (const int &F : E.value) {
if (!_propagate_function_call_sampler_uniform_settings(E.key, F, p_filter, p_repeat)) {
return false;
}
}
}
return true;
}
}
}
ERR_FAIL_V(false); //bug? function not found
}
bool ShaderLanguage::_propagate_function_call_sampler_builtin_reference(StringName p_name, int p_argument, const StringName &p_builtin) {
for (int i = 0; i < shader->functions.size(); i++) {
if (shader->functions[i].name == p_name) {
ERR_FAIL_INDEX_V(p_argument, shader->functions[i].function->arguments.size(), false);
FunctionNode::Argument *arg = &shader->functions[i].function->arguments.write[p_argument];
if (arg->tex_argument_check) {
_set_error(vformat(RTR("Sampler argument %d of function '%s' called more than once using both built-ins and uniform textures, this is not supported (use either one or the other)."), p_argument, String(p_name)));
return false;
} else if (arg->tex_builtin_check) {
//was checked, verify that the built-in is the same
if (arg->tex_builtin == p_builtin) {
return true;
} else {
_set_error(vformat(RTR("Sampler argument %d of function '%s' called more than once using different built-ins. Only calling with the same built-in is supported."), p_argument, String(p_name)));
return false;
}
} else {
arg->tex_builtin_check = true;
arg->tex_builtin = p_builtin;
for (KeyValue<StringName, HashSet<int>> &E : arg->tex_argument_connect) {
for (const int &F : E.value) {
if (!_propagate_function_call_sampler_builtin_reference(E.key, F, p_builtin)) {
return false;
}
}
}
return true;
}
}
}
ERR_FAIL_V(false); //bug? function not found
}
Error ShaderLanguage::_parse_array_size(BlockNode *p_block, const FunctionInfo &p_function_info, bool p_forbid_unknown_size, Node **r_size_expression, int *r_array_size, bool *r_unknown_size) {
bool error = false;
if (r_array_size != nullptr && *r_array_size > 0) {
error = true;
}
if (r_unknown_size != nullptr && *r_unknown_size) {
error = true;
}
if (error) {
_set_error(vformat(RTR("Array size is already defined.")));
return ERR_PARSE_ERROR;
}
TkPos pos = _get_tkpos();
Token tk = _get_token();
if (tk.type == TK_BRACKET_CLOSE) {
if (p_forbid_unknown_size) {
_set_error(vformat(RTR("Unknown array size is forbidden in that context.")));
return ERR_PARSE_ERROR;
}
if (r_unknown_size != nullptr) {
*r_unknown_size = true;
}
} else {
int array_size = 0;
if (!tk.is_integer_constant() || ((int)tk.constant) <= 0) {
_set_tkpos(pos);
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (n) {
if (n->type == Node::NODE_TYPE_VARIABLE) {
VariableNode *vn = static_cast<VariableNode *>(n);
if (vn) {
ConstantNode::Value v;
DataType data_type;
bool is_const = false;
_find_identifier(p_block, false, p_function_info, vn->name, &data_type, nullptr, &is_const, nullptr, nullptr, &v);
if (is_const) {
if (data_type == TYPE_INT) {
int32_t value = v.sint;
if (value > 0) {
array_size = value;
}
} else if (data_type == TYPE_UINT) {
uint32_t value = v.uint;
if (value > 0U) {
array_size = value;
}
}
}
}
} else if (n->type == Node::NODE_TYPE_OPERATOR) {
_set_error(vformat(RTR("Array size expressions are not supported.")));
return ERR_PARSE_ERROR;
}
if (r_size_expression != nullptr) {
*r_size_expression = n;
}
}
} else if (((int)tk.constant) > 0) {
array_size = (uint32_t)tk.constant;
}
if (array_size <= 0) {
_set_error(RTR("Expected a positive integer constant."));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_BRACKET_CLOSE) {
_set_expected_error("]");
return ERR_PARSE_ERROR;
}
if (r_array_size != nullptr) {
*r_array_size = array_size;
}
}
return OK;
}
ShaderLanguage::Node *ShaderLanguage::_parse_array_constructor(BlockNode *p_block, const FunctionInfo &p_function_info) {
DataType type = TYPE_VOID;
String struct_name = "";
int array_size = 0;
bool auto_size = false;
bool undefined_size = false;
Token tk = _get_token();
if (tk.type == TK_CURLY_BRACKET_OPEN) {
auto_size = true;
} else {
if (shader->structs.has(tk.text)) {
type = TYPE_STRUCT;
struct_name = tk.text;
} else {
if (!is_token_variable_datatype(tk.type)) {
_set_error(RTR("Invalid data type for the array."));
return nullptr;
}
type = get_token_datatype(tk.type);
}
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(p_block, p_function_info, false, nullptr, &array_size, &undefined_size);
if (error != OK) {
return nullptr;
}
tk = _get_token();
} else {
_set_expected_error("[");
return nullptr;
}
}
ArrayConstructNode *an = alloc_node<ArrayConstructNode>();
if (tk.type == TK_PARENTHESIS_OPEN || auto_size) { // initialization
int idx = 0;
while (true) {
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return nullptr;
}
// define type by using the first member
if (auto_size && idx == 0) {
type = n->get_datatype();
if (type == TYPE_STRUCT) {
struct_name = n->get_datatype_name();
}
} else {
if (!_compare_datatypes(type, struct_name, 0, n->get_datatype(), n->get_datatype_name(), 0)) {
return nullptr;
}
}
tk = _get_token();
if (tk.type == TK_COMMA) {
an->initializer.push_back(n);
} else if (!auto_size && tk.type == TK_PARENTHESIS_CLOSE) {
an->initializer.push_back(n);
break;
} else if (auto_size && tk.type == TK_CURLY_BRACKET_CLOSE) {
an->initializer.push_back(n);
break;
} else {
if (auto_size) {
_set_expected_error("}", ",");
} else {
_set_expected_error(")", ",");
}
return nullptr;
}
idx++;
}
if (!auto_size && !undefined_size && an->initializer.size() != array_size) {
_set_error(RTR("Array size mismatch."));
return nullptr;
}
} else {
_set_error(RTR("Expected array initialization."));
return nullptr;
}
an->datatype = type;
an->struct_name = struct_name;
return an;
}
ShaderLanguage::Node *ShaderLanguage::_parse_array_constructor(BlockNode *p_block, const FunctionInfo &p_function_info, DataType p_type, const StringName &p_struct_name, int p_array_size) {
DataType type = TYPE_VOID;
String struct_name = "";
int array_size = 0;
bool auto_size = false;
TkPos prev_pos = _get_tkpos();
Token tk = _get_token();
if (tk.type == TK_CURLY_BRACKET_OPEN) {
auto_size = true;
} else {
if (shader->structs.has(tk.text)) {
type = TYPE_STRUCT;
struct_name = tk.text;
} else {
if (!is_token_variable_datatype(tk.type)) {
_set_tkpos(prev_pos);
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
_set_error(RTR("Invalid data type for the array."));
return nullptr;
}
if (!_compare_datatypes(p_type, p_struct_name, p_array_size, n->get_datatype(), n->get_datatype_name(), n->get_array_size())) {
return nullptr;
}
return n;
}
type = get_token_datatype(tk.type);
}
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
bool is_unknown_size = false;
Error error = _parse_array_size(p_block, p_function_info, false, nullptr, &array_size, &is_unknown_size);
if (error != OK) {
return nullptr;
}
if (is_unknown_size) {
array_size = p_array_size;
}
tk = _get_token();
} else {
_set_expected_error("[");
return nullptr;
}
if (type != p_type || struct_name != p_struct_name || array_size != p_array_size) {
String from;
if (type == TYPE_STRUCT) {
from += struct_name;
} else {
from += get_datatype_name(type);
}
from += "[";
from += itos(array_size);
from += "]'";
String to;
if (type == TYPE_STRUCT) {
to += p_struct_name;
} else {
to += get_datatype_name(p_type);
}
to += "[";
to += itos(p_array_size);
to += "]'";
_set_error(vformat(RTR("Cannot convert from '%s' to '%s'."), from, to));
return nullptr;
}
}
ArrayConstructNode *an = alloc_node<ArrayConstructNode>();
an->datatype = p_type;
an->struct_name = p_struct_name;
if (tk.type == TK_PARENTHESIS_OPEN || auto_size) { // initialization
while (true) {
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return nullptr;
}
if (!_compare_datatypes(p_type, p_struct_name, 0, n->get_datatype(), n->get_datatype_name(), n->get_array_size())) {
return nullptr;
}
tk = _get_token();
if (tk.type == TK_COMMA) {
an->initializer.push_back(n);
} else if (!auto_size && tk.type == TK_PARENTHESIS_CLOSE) {
an->initializer.push_back(n);
break;
} else if (auto_size && tk.type == TK_CURLY_BRACKET_CLOSE) {
an->initializer.push_back(n);
break;
} else {
if (auto_size) {
_set_expected_error("}", ",");
} else {
_set_expected_error(")", ",");
}
return nullptr;
}
}
if (an->initializer.size() != p_array_size) {
_set_error(RTR("Array size mismatch."));
return nullptr;
}
} else {
_set_error(RTR("Expected array initialization."));
return nullptr;
}
return an;
}
ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, const FunctionInfo &p_function_info) {
Vector<Expression> expression;
//Vector<TokenType> operators;
while (true) {
Node *expr = nullptr;
TkPos prepos = _get_tkpos();
Token tk = _get_token();
TkPos pos = _get_tkpos();
bool is_const = false;
if (tk.type == TK_PARENTHESIS_OPEN) {
//handle subexpression
expr = _parse_and_reduce_expression(p_block, p_function_info);
if (!expr) {
return nullptr;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_error(RTR("Expected ')' in expression."));
return nullptr;
}
} else if (tk.type == TK_FLOAT_CONSTANT) {
ConstantNode *constant = alloc_node<ConstantNode>();
ConstantNode::Value v;
v.real = tk.constant;
constant->values.push_back(v);
constant->datatype = TYPE_FLOAT;
expr = constant;
} else if (tk.type == TK_INT_CONSTANT) {
ConstantNode *constant = alloc_node<ConstantNode>();
ConstantNode::Value v;
v.sint = tk.constant;
constant->values.push_back(v);
constant->datatype = TYPE_INT;
expr = constant;
} else if (tk.type == TK_UINT_CONSTANT) {
ConstantNode *constant = alloc_node<ConstantNode>();
ConstantNode::Value v;
v.uint = tk.constant;
constant->values.push_back(v);
constant->datatype = TYPE_UINT;
expr = constant;
} else if (tk.type == TK_TRUE) {
//handle true constant
ConstantNode *constant = alloc_node<ConstantNode>();
ConstantNode::Value v;
v.boolean = true;
constant->values.push_back(v);
constant->datatype = TYPE_BOOL;
expr = constant;
} else if (tk.type == TK_FALSE) {
//handle false constant
ConstantNode *constant = alloc_node<ConstantNode>();
ConstantNode::Value v;
v.boolean = false;
constant->values.push_back(v);
constant->datatype = TYPE_BOOL;
expr = constant;
} else if (tk.type == TK_TYPE_VOID) {
//make sure void is not used in expression
_set_error(RTR("Void value not allowed in expression."));
return nullptr;
} else if (is_token_nonvoid_datatype(tk.type) || tk.type == TK_CURLY_BRACKET_OPEN) {
if (tk.type == TK_CURLY_BRACKET_OPEN) {
//array constructor
_set_tkpos(prepos);
expr = _parse_array_constructor(p_block, p_function_info);
} else {
DataType datatype;
DataPrecision precision = PRECISION_DEFAULT;
if (is_token_precision(tk.type)) {
precision = get_token_precision(tk.type);
tk = _get_token();
}
datatype = get_token_datatype(tk.type);
if (precision != PRECISION_DEFAULT && _validate_precision(datatype, precision) != OK) {
return nullptr;
}
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
//array constructor
_set_tkpos(prepos);
expr = _parse_array_constructor(p_block, p_function_info);
} else {
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_error(RTR("Expected '(' after the type name."));
return nullptr;
}
//basic type constructor
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_CONSTRUCT;
if (precision != PRECISION_DEFAULT) {
func->return_precision_cache = precision;
}
VariableNode *funcname = alloc_node<VariableNode>();
funcname->name = get_datatype_name(datatype);
func->arguments.push_back(funcname);
int carg = -1;
bool ok = _parse_function_arguments(p_block, p_function_info, func, &carg);
if (carg >= 0) {
completion_type = COMPLETION_CALL_ARGUMENTS;
completion_line = tk_line;
completion_block = p_block;
completion_function = funcname->name;
completion_argument = carg;
}
if (!ok) {
return nullptr;
}
if (!_validate_function_call(p_block, p_function_info, func, &func->return_cache, &func->struct_name)) {
_set_error(vformat(RTR("No matching constructor found for: '%s'."), String(funcname->name)));
return nullptr;
}
expr = _reduce_expression(p_block, func);
}
}
} else if (tk.type == TK_IDENTIFIER) {
_set_tkpos(prepos);
StringName identifier;
StructNode *pstruct = nullptr;
bool struct_init = false;
_get_completable_identifier(p_block, COMPLETION_IDENTIFIER, identifier);
if (shader->structs.has(identifier)) {
pstruct = shader->structs[identifier].shader_struct;
struct_init = true;
}
tk = _get_token();
if (tk.type == TK_PARENTHESIS_OPEN) {
if (struct_init) { //a struct constructor
const StringName &name = identifier;
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_STRUCT;
func->struct_name = name;
func->return_cache = TYPE_STRUCT;
VariableNode *funcname = alloc_node<VariableNode>();
funcname->name = name;
func->arguments.push_back(funcname);
for (int i = 0; i < pstruct->members.size(); i++) {
Node *nexpr;
if (pstruct->members[i]->array_size != 0) {
nexpr = _parse_array_constructor(p_block, p_function_info, pstruct->members[i]->get_datatype(), pstruct->members[i]->struct_name, pstruct->members[i]->array_size);
if (!nexpr) {
return nullptr;
}
} else {
nexpr = _parse_and_reduce_expression(p_block, p_function_info);
if (!nexpr) {
return nullptr;
}
if (!_compare_datatypes_in_nodes(pstruct->members[i], nexpr)) {
return nullptr;
}
}
if (i + 1 < pstruct->members.size()) {
tk = _get_token();
if (tk.type != TK_COMMA) {
_set_expected_error(",");
return nullptr;
}
}
func->arguments.push_back(nexpr);
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return nullptr;
}
expr = func;
} else { //a function call
if (p_block == nullptr) { // Non-constructor function call in global space is forbidden.
if (is_const_decl) {
_set_error(RTR("Expected constant expression."));
}
return nullptr;
}
const StringName &name = identifier;
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_CALL;
VariableNode *funcname = alloc_node<VariableNode>();
funcname->name = name;
func->arguments.push_back(funcname);
int carg = -1;
bool ok = _parse_function_arguments(p_block, p_function_info, func, &carg);
// Check if block has a variable with the same name as function to prevent shader crash.
ShaderLanguage::BlockNode *bnode = p_block;
while (bnode) {
if (bnode->variables.has(name)) {
_set_error(RTR("Expected a function name."));
return nullptr;
}
bnode = bnode->parent_block;
}
//test if function was parsed first
int function_index = -1;
for (int i = 0; i < shader->functions.size(); i++) {
if (shader->functions[i].name == name) {
//add to current function as dependency
for (int j = 0; j < shader->functions.size(); j++) {
if (shader->functions[j].name == current_function) {
shader->functions.write[j].uses_function.insert(name);
break;
}
}
//see if texture arguments must connect
function_index = i;
break;
}
}
if (carg >= 0) {
completion_type = COMPLETION_CALL_ARGUMENTS;
completion_line = tk_line;
completion_block = p_block;
completion_function = funcname->name;
completion_argument = carg;
}
if (!ok) {
return nullptr;
}
bool is_custom_func = false;
if (!_validate_function_call(p_block, p_function_info, func, &func->return_cache, &func->struct_name, &is_custom_func)) {
_set_error(vformat(RTR("No matching function found for: '%s'."), String(funcname->name)));
return nullptr;
}
completion_class = TAG_GLOBAL; // reset sub-class
if (function_index >= 0) {
//connect texture arguments, so we can cache in the
//argument what type of filter and repeat to use
FunctionNode *call_function = shader->functions[function_index].function;
if (call_function) {
func->return_cache = call_function->get_datatype();
func->struct_name = call_function->get_datatype_name();
func->return_array_size = call_function->get_array_size();
//get current base function
FunctionNode *base_function = nullptr;
{
BlockNode *b = p_block;
while (b) {
if (b->parent_function) {
base_function = b->parent_function;
break;
} else {
b = b->parent_block;
}
}
}
ERR_FAIL_COND_V(!base_function, nullptr); //bug, wtf
for (int i = 0; i < call_function->arguments.size(); i++) {
int argidx = i + 1;
if (argidx < func->arguments.size()) {
bool error = false;
Node *n = func->arguments[argidx];
ArgumentQualifier arg_qual = call_function->arguments[i].qualifier;
bool is_out_arg = arg_qual != ArgumentQualifier::ARGUMENT_QUALIFIER_IN;
if (n->type == Node::NODE_TYPE_VARIABLE || n->type == Node::NODE_TYPE_ARRAY) {
StringName varname;
if (n->type == Node::NODE_TYPE_VARIABLE) {
VariableNode *vn = static_cast<VariableNode *>(n);
varname = vn->name;
} else { // TYPE_ARRAY
ArrayNode *an = static_cast<ArrayNode *>(n);
varname = an->name;
}
if (shader->varyings.has(varname)) {
switch (shader->varyings[varname].stage) {
case ShaderNode::Varying::STAGE_UNKNOWN: {
_set_error(vformat(RTR("Varying '%s' must be assigned in the 'vertex' or 'fragment' function first."), varname));
return nullptr;
}
case ShaderNode::Varying::STAGE_VERTEX_TO_FRAGMENT_LIGHT:
[[fallthrough]];
case ShaderNode::Varying::STAGE_VERTEX:
if (is_out_arg && current_function != varying_function_names.vertex) { // inout/out
error = true;
}
break;
case ShaderNode::Varying::STAGE_FRAGMENT_TO_LIGHT:
[[fallthrough]];
case ShaderNode::Varying::STAGE_FRAGMENT:
if (!is_out_arg) {
if (current_function != varying_function_names.fragment && current_function != varying_function_names.light) {
error = true;
}
} else if (current_function != varying_function_names.fragment) { // inout/out
error = true;
}
break;
default:
break;
}
if (error) {
_set_error(vformat(RTR("Varying '%s' cannot be passed for the '%s' parameter in that context."), varname, _get_qualifier_str(arg_qual)));
return nullptr;
}
}
}
bool is_const_arg = call_function->arguments[i].is_const;
if (is_const_arg || is_out_arg) {
StringName varname;
if (n->type == Node::NODE_TYPE_CONSTANT || n->type == Node::NODE_TYPE_OPERATOR || n->type == Node::NODE_TYPE_ARRAY_CONSTRUCT) {
if (!is_const_arg) {
error = true;
}
} else if (n->type == Node::NODE_TYPE_ARRAY) {
ArrayNode *an = static_cast<ArrayNode *>(n);
if (!is_const_arg && (an->call_expression != nullptr || an->is_const)) {
error = true;
}
varname = an->name;
} else if (n->type == Node::NODE_TYPE_VARIABLE) {
VariableNode *vn = static_cast<VariableNode *>(n);
if (vn->is_const && !is_const_arg) {
error = true;
}
varname = vn->name;
} else if (n->type == Node::NODE_TYPE_MEMBER) {
MemberNode *mn = static_cast<MemberNode *>(n);
if (mn->basetype_const && is_out_arg) {
error = true;
}
}
if (!error && varname != StringName()) {
if (shader->constants.has(varname)) {
error = true;
} else if (shader->uniforms.has(varname)) {
error = true;
} else if (p_function_info.built_ins.has(varname)) {
BuiltInInfo info = p_function_info.built_ins[varname];
if (info.constant) {
error = true;
}
}
}
if (error) {
_set_error(vformat(RTR("A constant value cannot be passed for '%s' parameter."), _get_qualifier_str(arg_qual)));
return nullptr;
}
}
if (is_sampler_type(call_function->arguments[i].type)) {
//let's see where our argument comes from
ERR_CONTINUE(n->type != Node::NODE_TYPE_VARIABLE); //bug? this should always be a variable
VariableNode *vn = static_cast<VariableNode *>(n);
StringName varname = vn->name;
if (shader->uniforms.has(varname)) {
//being sampler, this either comes from a uniform
ShaderNode::Uniform *u = &shader->uniforms[varname];
ERR_CONTINUE(u->type != call_function->arguments[i].type); //this should have been validated previously
if (RendererCompositor::get_singleton()->is_xr_enabled() && is_custom_func) {
ShaderNode::Uniform::Hint hint = u->hint;
if (hint == ShaderNode::Uniform::HINT_DEPTH_TEXTURE || hint == ShaderNode::Uniform::HINT_SCREEN_TEXTURE || hint == ShaderNode::Uniform::HINT_NORMAL_ROUGHNESS_TEXTURE) {
_set_error(vformat(RTR("Unable to pass a multiview texture sampler as a parameter to custom function. Consider to sample it in the main function and then pass the vector result to it."), get_uniform_hint_name(hint)));
return nullptr;
}
}
//propagate
if (!_propagate_function_call_sampler_uniform_settings(name, i, u->filter, u->repeat)) {
return nullptr;
}
} else if (p_function_info.built_ins.has(varname)) {
//a built-in
if (!_propagate_function_call_sampler_builtin_reference(name, i, varname)) {
return nullptr;
}
} else {
//or this comes from an argument, but nothing else can be a sampler
bool found = false;
for (int j = 0; j < base_function->arguments.size(); j++) {
if (base_function->arguments[j].name == varname) {
if (!base_function->arguments[j].tex_argument_connect.has(call_function->name)) {
base_function->arguments.write[j].tex_argument_connect[call_function->name] = HashSet<int>();
}
base_function->arguments.write[j].tex_argument_connect[call_function->name].insert(i);
found = true;
break;
}
}
ERR_CONTINUE(!found);
}
}
} else {
break;
}
}
}
}
expr = func;
#ifdef DEBUG_ENABLED
if (check_warnings) {
StringName func_name;
if (p_block && p_block->parent_function) {
func_name = p_block->parent_function->name;
}
_parse_used_identifier(name, IdentifierType::IDENTIFIER_FUNCTION, func_name);
}
#endif // DEBUG_ENABLED
}
} else {
//an identifier
last_name = identifier;
last_type = IDENTIFIER_MAX;
_set_tkpos(pos);
DataType data_type = TYPE_MAX;
IdentifierType ident_type = IDENTIFIER_MAX;
int array_size = 0;
StringName struct_name;
bool is_local = false;
if (p_block && p_block->block_tag != SubClassTag::TAG_GLOBAL) {
int idx = 0;
bool found = false;
while (builtin_func_defs[idx].name) {
if (builtin_func_defs[idx].tag == p_block->block_tag && builtin_func_defs[idx].name == identifier) {
found = true;
break;
}
idx++;
}
if (!found) {
_set_error(vformat(RTR("Unknown identifier in expression: '%s'."), String(identifier)));
return nullptr;
}
} else {
if (!_find_identifier(p_block, false, p_function_info, identifier, &data_type, &ident_type, &is_const, &array_size, &struct_name)) {
if (identifier == "SCREEN_TEXTURE" || identifier == "DEPTH_TEXTURE" || identifier == "NORMAL_ROUGHNESS_TEXTURE") {
String name = String(identifier);
String name_lower = name.to_lower();
_set_error(vformat(RTR("%s has been removed in favor of using hint_%s with a uniform.\nTo continue with minimal code changes add 'uniform sampler2D %s : hint_%s, filter_linear_mipmap;' near the top of your shader."), name, name_lower, name, name_lower));
return nullptr;
}
_set_error(vformat(RTR("Unknown identifier in expression: '%s'."), String(identifier)));
return nullptr;
}
if (is_const_decl && !is_const) {
_set_error(RTR("Expected constant expression."));
return nullptr;
}
if (ident_type == IDENTIFIER_VARYING) {
TkPos prev_pos = _get_tkpos();
Token next_token = _get_token();
// An array of varyings.
if (next_token.type == TK_BRACKET_OPEN) {
_get_token(); // Pass constant.
_get_token(); // Pass TK_BRACKET_CLOSE.
next_token = _get_token();
}
_set_tkpos(prev_pos);
ShaderNode::Varying &var = shader->varyings[identifier];
String error;
if (is_token_operator_assign(next_token.type)) {
if (!_validate_varying_assign(shader->varyings[identifier], &error)) {
_set_error(error);
return nullptr;
}
} else {
switch (var.stage) {
case ShaderNode::Varying::STAGE_UNKNOWN: {
if (var.type < TYPE_INT) {
if (current_function == varying_function_names.vertex) {
_set_error(vformat(RTR("Varying with '%s' data type may only be used in the 'fragment' function."), get_datatype_name(var.type)));
} else {
_set_error(vformat(RTR("Varying '%s' must be assigned in the 'fragment' function first."), identifier));
}
return nullptr;
}
} break;
case ShaderNode::Varying::STAGE_VERTEX:
if (current_function == varying_function_names.fragment || current_function == varying_function_names.light) {
var.stage = ShaderNode::Varying::STAGE_VERTEX_TO_FRAGMENT_LIGHT;
}
break;
case ShaderNode::Varying::STAGE_FRAGMENT:
if (current_function == varying_function_names.light) {
var.stage = ShaderNode::Varying::STAGE_FRAGMENT_TO_LIGHT;
}
break;
default:
break;
}
}
if ((var.stage != ShaderNode::Varying::STAGE_FRAGMENT && var.stage != ShaderNode::Varying::STAGE_FRAGMENT_TO_LIGHT) && var.type < TYPE_FLOAT && var.interpolation != INTERPOLATION_FLAT) {
_set_tkpos(var.tkpos);
_set_error(RTR("Varying with integer data type must be declared with `flat` interpolation qualifier."));
return nullptr;
}
}
if (ident_type == IDENTIFIER_FUNCTION) {
_set_error(vformat(RTR("Can't use function as identifier: '%s'."), String(identifier)));
return nullptr;
}
if (is_const) {
last_type = IDENTIFIER_CONSTANT;
} else {
last_type = ident_type;
}
is_local = ident_type == IDENTIFIER_LOCAL_VAR || ident_type == IDENTIFIER_FUNCTION_ARGUMENT;
}
Node *index_expression = nullptr;
Node *call_expression = nullptr;
Node *assign_expression = nullptr;
if (array_size > 0) {
prepos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_OP_ASSIGN) {
if (is_const) {
_set_error(RTR("Constants cannot be modified."));
return nullptr;
}
assign_expression = _parse_array_constructor(p_block, p_function_info, data_type, struct_name, array_size);
if (!assign_expression) {
return nullptr;
}
} else if (tk.type == TK_PERIOD) {
completion_class = TAG_ARRAY;
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_ARRAY;
}
call_expression = _parse_and_reduce_expression(p_block, p_function_info);
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_GLOBAL;
}
if (!call_expression) {
return nullptr;
}
} else if (tk.type == TK_BRACKET_OPEN) { // indexing
index_expression = _parse_and_reduce_expression(p_block, p_function_info);
if (!index_expression) {
return nullptr;
}
if (index_expression->get_array_size() != 0 || (index_expression->get_datatype() != TYPE_INT && index_expression->get_datatype() != TYPE_UINT)) {
_set_error(RTR("Only integer expressions are allowed for indexing."));
return nullptr;
}
if (index_expression->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *cnode = static_cast<ConstantNode *>(index_expression);
if (cnode) {
if (!cnode->values.is_empty()) {
int value = cnode->values[0].sint;
if (value < 0 || value >= array_size) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), value, 0, array_size - 1));
return nullptr;
}
}
}
}
tk = _get_token();
if (tk.type != TK_BRACKET_CLOSE) {
_set_expected_error("]");
return nullptr;
}
} else {
_set_tkpos(prepos);
}
ArrayNode *arrname = alloc_node<ArrayNode>();
arrname->name = identifier;
arrname->datatype_cache = data_type;
arrname->struct_name = struct_name;
arrname->index_expression = index_expression;
arrname->call_expression = call_expression;
arrname->assign_expression = assign_expression;
arrname->is_const = is_const;
arrname->array_size = array_size;
arrname->is_local = is_local;
expr = arrname;
} else {
VariableNode *varname = alloc_node<VariableNode>();
varname->name = identifier;
varname->datatype_cache = data_type;
varname->is_const = is_const;
varname->struct_name = struct_name;
varname->is_local = is_local;
expr = varname;
}
#ifdef DEBUG_ENABLED
if (check_warnings) {
StringName func_name;
BlockNode *b = p_block;
while (b) {
if (b->parent_function) {
func_name = b->parent_function->name;
break;
} else {
b = b->parent_block;
}
}
_parse_used_identifier(identifier, ident_type, func_name);
}
#endif // DEBUG_ENABLED
}
} else if (tk.type == TK_OP_ADD) {
continue; //this one does nothing
} else if (tk.type == TK_OP_SUB || tk.type == TK_OP_NOT || tk.type == TK_OP_BIT_INVERT || tk.type == TK_OP_INCREMENT || tk.type == TK_OP_DECREMENT) {
Expression e;
e.is_op = true;
switch (tk.type) {
case TK_OP_SUB:
e.op = OP_NEGATE;
break;
case TK_OP_NOT:
e.op = OP_NOT;
break;
case TK_OP_BIT_INVERT:
e.op = OP_BIT_INVERT;
break;
case TK_OP_INCREMENT:
e.op = OP_INCREMENT;
break;
case TK_OP_DECREMENT:
e.op = OP_DECREMENT;
break;
default:
ERR_FAIL_V(nullptr);
}
expression.push_back(e);
continue;
} else {
bool valid = false;
if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_FOR_EXPRESSION && tk.type == TK_PARENTHESIS_CLOSE) {
valid = true;
_set_tkpos(prepos);
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_EMPTY;
expr = func;
}
if (!valid) {
if (tk.type != TK_SEMICOLON) {
_set_error(vformat(RTR("Expected expression, found: '%s'."), get_token_text(tk)));
return nullptr;
} else {
#ifdef DEBUG_ENABLED
if (!p_block || (p_block->block_type != BlockNode::BLOCK_TYPE_FOR_INIT && p_block->block_type != BlockNode::BLOCK_TYPE_FOR_CONDITION)) {
if (check_warnings && HAS_WARNING(ShaderWarning::FORMATTING_ERROR_FLAG)) {
_add_line_warning(ShaderWarning::FORMATTING_ERROR, RTR("Empty statement. Remove ';' to fix this warning."));
}
}
#endif // DEBUG_ENABLED
_set_tkpos(prepos);
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_EMPTY;
expr = func;
}
}
}
ERR_FAIL_COND_V(!expr, nullptr);
/* OK now see what's NEXT to the operator.. */
while (true) {
TkPos pos2 = _get_tkpos();
tk = _get_token();
if (tk.type == TK_CURSOR) {
//do nothing
} else if (tk.type == TK_PERIOD) {
#ifdef DEBUG_ENABLED
uint32_t prev_keyword_completion_context = keyword_completion_context;
keyword_completion_context = CF_UNSPECIFIED;
#endif
DataType dt = expr->get_datatype();
String st = expr->get_datatype_name();
if (!expr->is_indexed() && expr->get_array_size() > 0) {
completion_class = TAG_ARRAY;
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_ARRAY;
}
Node *call_expression = _parse_and_reduce_expression(p_block, p_function_info);
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_GLOBAL;
}
if (!call_expression) {
return nullptr;
}
expr = call_expression;
break;
}
StringName identifier;
if (_get_completable_identifier(p_block, dt == TYPE_STRUCT ? COMPLETION_STRUCT : COMPLETION_INDEX, identifier)) {
if (dt == TYPE_STRUCT) {
completion_struct = st;
} else {
completion_base = dt;
}
}
if (identifier == StringName()) {
_set_error(RTR("Expected an identifier as a member."));
return nullptr;
}
String ident = identifier;
bool ok = true;
bool repeated = false;
DataType member_type = TYPE_VOID;
StringName member_struct_name = "";
int array_size = 0;
RBSet<char> position_symbols;
RBSet<char> color_symbols;
RBSet<char> texture_symbols;
bool mix_error = false;
switch (dt) {
case TYPE_STRUCT: {
ok = false;
String member_name = String(ident.ptr());
if (shader->structs.has(st)) {
StructNode *n = shader->structs[st].shader_struct;
for (const MemberNode *E : n->members) {
if (String(E->name) == member_name) {
member_type = E->datatype;
array_size = E->array_size;
if (member_type == TYPE_STRUCT) {
member_struct_name = E->struct_name;
}
ok = true;
break;
}
}
}
} break;
case TYPE_BVEC2:
case TYPE_IVEC2:
case TYPE_UVEC2:
case TYPE_VEC2: {
int l = ident.length();
if (l == 1) {
member_type = DataType(dt - 1);
} else if (l == 2) {
member_type = dt;
} else if (l == 3) {
member_type = DataType(dt + 1);
} else if (l == 4) {
member_type = DataType(dt + 2);
} else {
ok = false;
break;
}
const char32_t *c = ident.ptr();
for (int i = 0; i < l; i++) {
switch (c[i]) {
case 'r':
case 'g':
if (position_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!color_symbols.has(c[i])) {
color_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 'x':
case 'y':
if (color_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!position_symbols.has(c[i])) {
position_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 's':
case 't':
if (color_symbols.size() > 0 || position_symbols.size() > 0) {
mix_error = true;
break;
}
if (!texture_symbols.has(c[i])) {
texture_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
default:
ok = false;
break;
}
}
} break;
case TYPE_BVEC3:
case TYPE_IVEC3:
case TYPE_UVEC3:
case TYPE_VEC3: {
int l = ident.length();
if (l == 1) {
member_type = DataType(dt - 2);
} else if (l == 2) {
member_type = DataType(dt - 1);
} else if (l == 3) {
member_type = dt;
} else if (l == 4) {
member_type = DataType(dt + 1);
} else {
ok = false;
break;
}
const char32_t *c = ident.ptr();
for (int i = 0; i < l; i++) {
switch (c[i]) {
case 'r':
case 'g':
case 'b':
if (position_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!color_symbols.has(c[i])) {
color_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 'x':
case 'y':
case 'z':
if (color_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!position_symbols.has(c[i])) {
position_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 's':
case 't':
case 'p':
if (color_symbols.size() > 0 || position_symbols.size() > 0) {
mix_error = true;
break;
}
if (!texture_symbols.has(c[i])) {
texture_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
default:
ok = false;
break;
}
}
} break;
case TYPE_BVEC4:
case TYPE_IVEC4:
case TYPE_UVEC4:
case TYPE_VEC4: {
int l = ident.length();
if (l == 1) {
member_type = DataType(dt - 3);
} else if (l == 2) {
member_type = DataType(dt - 2);
} else if (l == 3) {
member_type = DataType(dt - 1);
} else if (l == 4) {
member_type = dt;
} else {
ok = false;
break;
}
const char32_t *c = ident.ptr();
for (int i = 0; i < l; i++) {
switch (c[i]) {
case 'r':
case 'g':
case 'b':
case 'a':
if (position_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!color_symbols.has(c[i])) {
color_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 'x':
case 'y':
case 'z':
case 'w':
if (color_symbols.size() > 0 || texture_symbols.size() > 0) {
mix_error = true;
break;
}
if (!position_symbols.has(c[i])) {
position_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
case 's':
case 't':
case 'p':
case 'q':
if (color_symbols.size() > 0 || position_symbols.size() > 0) {
mix_error = true;
break;
}
if (!texture_symbols.has(c[i])) {
texture_symbols.insert(c[i]);
} else {
repeated = true;
}
break;
default:
ok = false;
break;
}
}
} break;
default: {
ok = false;
}
}
if (mix_error) {
_set_error(vformat(RTR("Cannot combine symbols from different sets in expression '.%s'."), ident));
return nullptr;
}
if (!ok) {
_set_error(vformat(RTR("Invalid member for '%s' expression: '.%s'."), (dt == TYPE_STRUCT ? st : get_datatype_name(dt)), ident));
return nullptr;
}
MemberNode *mn = alloc_node<MemberNode>();
mn->basetype = dt;
mn->basetype_const = is_const;
mn->datatype = member_type;
mn->base_struct_name = st;
mn->struct_name = member_struct_name;
mn->array_size = array_size;
mn->name = ident;
mn->owner = expr;
mn->has_swizzling_duplicates = repeated;
if (array_size > 0) {
TkPos prev_pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_OP_ASSIGN) {
if (last_type == IDENTIFIER_CONSTANT) {
_set_error(RTR("Constants cannot be modified."));
return nullptr;
}
Node *assign_expression = _parse_array_constructor(p_block, p_function_info, member_type, member_struct_name, array_size);
if (!assign_expression) {
return nullptr;
}
mn->assign_expression = assign_expression;
} else if (tk.type == TK_PERIOD) {
completion_class = TAG_ARRAY;
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_ARRAY;
}
mn->call_expression = _parse_and_reduce_expression(p_block, p_function_info);
if (p_block != nullptr) {
p_block->block_tag = SubClassTag::TAG_GLOBAL;
}
if (!mn->call_expression) {
return nullptr;
}
} else if (tk.type == TK_BRACKET_OPEN) {
Node *index_expression = _parse_and_reduce_expression(p_block, p_function_info);
if (!index_expression) {
return nullptr;
}
if (index_expression->get_array_size() != 0 || (index_expression->get_datatype() != TYPE_INT && index_expression->get_datatype() != TYPE_UINT)) {
_set_error(RTR("Only integer expressions are allowed for indexing."));
return nullptr;
}
if (index_expression->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *cnode = static_cast<ConstantNode *>(index_expression);
if (cnode) {
if (!cnode->values.is_empty()) {
int value = cnode->values[0].sint;
if (value < 0 || value >= array_size) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), value, 0, array_size - 1));
return nullptr;
}
}
}
}
tk = _get_token();
if (tk.type != TK_BRACKET_CLOSE) {
_set_expected_error("]");
return nullptr;
}
mn->index_expression = index_expression;
} else {
_set_tkpos(prev_pos);
}
}
expr = mn;
#ifdef DEBUG_ENABLED
keyword_completion_context = prev_keyword_completion_context;
#endif
//todo
//member (period) has priority over any operator
//creates a subindexing expression in place
/*} else if (tk.type==TK_BRACKET_OPEN) {
//todo
//subindexing has priority over any operator
//creates a subindexing expression in place
*/
} else if (tk.type == TK_BRACKET_OPEN) {
Node *index = _parse_and_reduce_expression(p_block, p_function_info);
if (!index) {
return nullptr;
}
if (index->get_array_size() != 0 || (index->get_datatype() != TYPE_INT && index->get_datatype() != TYPE_UINT)) {
_set_error(RTR("Only integer expressions are allowed for indexing."));
return nullptr;
}
DataType member_type = TYPE_VOID;
String member_struct_name;
if (expr->get_array_size() > 0) {
if (index->type == Node::NODE_TYPE_CONSTANT) {
uint32_t index_constant = static_cast<ConstantNode *>(index)->values[0].uint;
if (index_constant >= (uint32_t)expr->get_array_size()) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), index_constant, 0, expr->get_array_size() - 1));
return nullptr;
}
}
member_type = expr->get_datatype();
if (member_type == TYPE_STRUCT) {
member_struct_name = expr->get_datatype_name();
}
} else {
switch (expr->get_datatype()) {
case TYPE_BVEC2:
case TYPE_VEC2:
case TYPE_IVEC2:
case TYPE_UVEC2:
case TYPE_MAT2:
if (index->type == Node::NODE_TYPE_CONSTANT) {
uint32_t index_constant = static_cast<ConstantNode *>(index)->values[0].uint;
if (index_constant >= 2) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), index_constant, 0, 1));
return nullptr;
}
}
switch (expr->get_datatype()) {
case TYPE_BVEC2:
member_type = TYPE_BOOL;
break;
case TYPE_VEC2:
member_type = TYPE_FLOAT;
break;
case TYPE_IVEC2:
member_type = TYPE_INT;
break;
case TYPE_UVEC2:
member_type = TYPE_UINT;
break;
case TYPE_MAT2:
member_type = TYPE_VEC2;
break;
default:
break;
}
break;
case TYPE_BVEC3:
case TYPE_VEC3:
case TYPE_IVEC3:
case TYPE_UVEC3:
case TYPE_MAT3:
if (index->type == Node::NODE_TYPE_CONSTANT) {
uint32_t index_constant = static_cast<ConstantNode *>(index)->values[0].uint;
if (index_constant >= 3) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), index_constant, 0, 2));
return nullptr;
}
}
switch (expr->get_datatype()) {
case TYPE_BVEC3:
member_type = TYPE_BOOL;
break;
case TYPE_VEC3:
member_type = TYPE_FLOAT;
break;
case TYPE_IVEC3:
member_type = TYPE_INT;
break;
case TYPE_UVEC3:
member_type = TYPE_UINT;
break;
case TYPE_MAT3:
member_type = TYPE_VEC3;
break;
default:
break;
}
break;
case TYPE_BVEC4:
case TYPE_VEC4:
case TYPE_IVEC4:
case TYPE_UVEC4:
case TYPE_MAT4:
if (index->type == Node::NODE_TYPE_CONSTANT) {
uint32_t index_constant = static_cast<ConstantNode *>(index)->values[0].uint;
if (index_constant >= 4) {
_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), index_constant, 0, 3));
return nullptr;
}
}
switch (expr->get_datatype()) {
case TYPE_BVEC4:
member_type = TYPE_BOOL;
break;
case TYPE_VEC4:
member_type = TYPE_FLOAT;
break;
case TYPE_IVEC4:
member_type = TYPE_INT;
break;
case TYPE_UVEC4:
member_type = TYPE_UINT;
break;
case TYPE_MAT4:
member_type = TYPE_VEC4;
break;
default:
break;
}
break;
default: {
_set_error(vformat(RTR("An object of type '%s' can't be indexed."), (expr->get_datatype() == TYPE_STRUCT ? expr->get_datatype_name() : get_datatype_name(expr->get_datatype()))));
return nullptr;
}
}
}
OperatorNode *op = alloc_node<OperatorNode>();
op->op = OP_INDEX;
op->return_cache = member_type;
op->struct_name = member_struct_name;
op->arguments.push_back(expr);
op->arguments.push_back(index);
expr = op;
tk = _get_token();
if (tk.type != TK_BRACKET_CLOSE) {
_set_expected_error("]");
return nullptr;
}
} else if (tk.type == TK_OP_INCREMENT || tk.type == TK_OP_DECREMENT) {
OperatorNode *op = alloc_node<OperatorNode>();
op->op = tk.type == TK_OP_DECREMENT ? OP_POST_DECREMENT : OP_POST_INCREMENT;
op->arguments.push_back(expr);
if (!_validate_operator(op, &op->return_cache, &op->return_array_size)) {
_set_error(RTR("Invalid base type for increment/decrement operator."));
return nullptr;
}
if (!_validate_assign(expr, p_function_info)) {
_set_error(RTR("Invalid use of increment/decrement operator in a constant expression."));
return nullptr;
}
expr = op;
} else {
_set_tkpos(pos2);
break;
}
}
Expression e;
e.is_op = false;
e.node = expr;
expression.push_back(e);
pos = _get_tkpos();
tk = _get_token();
if (is_token_operator(tk.type)) {
Expression o;
o.is_op = true;
switch (tk.type) {
case TK_OP_EQUAL:
o.op = OP_EQUAL;
break;
case TK_OP_NOT_EQUAL:
o.op = OP_NOT_EQUAL;
break;
case TK_OP_LESS:
o.op = OP_LESS;
break;
case TK_OP_LESS_EQUAL:
o.op = OP_LESS_EQUAL;
break;
case TK_OP_GREATER:
o.op = OP_GREATER;
break;
case TK_OP_GREATER_EQUAL:
o.op = OP_GREATER_EQUAL;
break;
case TK_OP_AND:
o.op = OP_AND;
break;
case TK_OP_OR:
o.op = OP_OR;
break;
case TK_OP_ADD:
o.op = OP_ADD;
break;
case TK_OP_SUB:
o.op = OP_SUB;
break;
case TK_OP_MUL:
o.op = OP_MUL;
break;
case TK_OP_DIV:
o.op = OP_DIV;
break;
case TK_OP_MOD:
o.op = OP_MOD;
break;
case TK_OP_SHIFT_LEFT:
o.op = OP_SHIFT_LEFT;
break;
case TK_OP_SHIFT_RIGHT:
o.op = OP_SHIFT_RIGHT;
break;
case TK_OP_ASSIGN:
o.op = OP_ASSIGN;
break;
case TK_OP_ASSIGN_ADD:
o.op = OP_ASSIGN_ADD;
break;
case TK_OP_ASSIGN_SUB:
o.op = OP_ASSIGN_SUB;
break;
case TK_OP_ASSIGN_MUL:
o.op = OP_ASSIGN_MUL;
break;
case TK_OP_ASSIGN_DIV:
o.op = OP_ASSIGN_DIV;
break;
case TK_OP_ASSIGN_MOD:
o.op = OP_ASSIGN_MOD;
break;
case TK_OP_ASSIGN_SHIFT_LEFT:
o.op = OP_ASSIGN_SHIFT_LEFT;
break;
case TK_OP_ASSIGN_SHIFT_RIGHT:
o.op = OP_ASSIGN_SHIFT_RIGHT;
break;
case TK_OP_ASSIGN_BIT_AND:
o.op = OP_ASSIGN_BIT_AND;
break;
case TK_OP_ASSIGN_BIT_OR:
o.op = OP_ASSIGN_BIT_OR;
break;
case TK_OP_ASSIGN_BIT_XOR:
o.op = OP_ASSIGN_BIT_XOR;
break;
case TK_OP_BIT_AND:
o.op = OP_BIT_AND;
break;
case TK_OP_BIT_OR:
o.op = OP_BIT_OR;
break;
case TK_OP_BIT_XOR:
o.op = OP_BIT_XOR;
break;
case TK_QUESTION:
o.op = OP_SELECT_IF;
break;
case TK_COLON:
o.op = OP_SELECT_ELSE;
break;
default: {
_set_error(vformat(RTR("Invalid token for the operator: '%s'."), get_token_text(tk)));
return nullptr;
}
}
expression.push_back(o);
} else {
_set_tkpos(pos); //something else, so rollback and end
break;
}
}
/* Reduce the set set of expressions and place them in an operator tree, respecting precedence */
while (expression.size() > 1) {
int next_op = -1;
int min_priority = 0xFFFFF;
bool is_unary = false;
bool is_ternary = false;
for (int i = 0; i < expression.size(); i++) {
if (!expression[i].is_op) {
continue;
}
bool unary = false;
bool ternary = false;
Operator op = expression[i].op;
int priority;
switch (op) {
case OP_EQUAL:
priority = 8;
break;
case OP_NOT_EQUAL:
priority = 8;
break;
case OP_LESS:
priority = 7;
break;
case OP_LESS_EQUAL:
priority = 7;
break;
case OP_GREATER:
priority = 7;
break;
case OP_GREATER_EQUAL:
priority = 7;
break;
case OP_AND:
priority = 12;
break;
case OP_OR:
priority = 14;
break;
case OP_NOT:
priority = 3;
unary = true;
break;
case OP_NEGATE:
priority = 3;
unary = true;
break;
case OP_ADD:
priority = 5;
break;
case OP_SUB:
priority = 5;
break;
case OP_MUL:
priority = 4;
break;
case OP_DIV:
priority = 4;
break;
case OP_MOD:
priority = 4;
break;
case OP_SHIFT_LEFT:
priority = 6;
break;
case OP_SHIFT_RIGHT:
priority = 6;
break;
case OP_ASSIGN:
priority = 16;
break;
case OP_ASSIGN_ADD:
priority = 16;
break;
case OP_ASSIGN_SUB:
priority = 16;
break;
case OP_ASSIGN_MUL:
priority = 16;
break;
case OP_ASSIGN_DIV:
priority = 16;
break;
case OP_ASSIGN_MOD:
priority = 16;
break;
case OP_ASSIGN_SHIFT_LEFT:
priority = 16;
break;
case OP_ASSIGN_SHIFT_RIGHT:
priority = 16;
break;
case OP_ASSIGN_BIT_AND:
priority = 16;
break;
case OP_ASSIGN_BIT_OR:
priority = 16;
break;
case OP_ASSIGN_BIT_XOR:
priority = 16;
break;
case OP_BIT_AND:
priority = 9;
break;
case OP_BIT_OR:
priority = 11;
break;
case OP_BIT_XOR:
priority = 10;
break;
case OP_BIT_INVERT:
priority = 3;
unary = true;
break;
case OP_INCREMENT:
priority = 3;
unary = true;
break;
case OP_DECREMENT:
priority = 3;
unary = true;
break;
case OP_SELECT_IF:
priority = 15;
ternary = true;
break;
case OP_SELECT_ELSE:
priority = 15;
ternary = true;
break;
default:
ERR_FAIL_V(nullptr); //unexpected operator
}
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::FLOAT_COMPARISON_FLAG) && (op == OP_EQUAL || op == OP_NOT_EQUAL) &&
(!expression[i - 1].is_op && !expression[i + 1].is_op) &&
(expression[i - 1].node->get_datatype() == TYPE_FLOAT && expression[i + 1].node->get_datatype() == TYPE_FLOAT)) {
_add_line_warning(ShaderWarning::FLOAT_COMPARISON);
}
#endif // DEBUG_ENABLED
if (priority < min_priority) {
// < is used for left to right (default)
// <= is used for right to left
next_op = i;
min_priority = priority;
is_unary = unary;
is_ternary = ternary;
}
}
ERR_FAIL_COND_V(next_op == -1, nullptr);
// OK! create operator..
if (is_unary) {
int expr_pos = next_op;
while (expression[expr_pos].is_op) {
expr_pos++;
if (expr_pos == expression.size()) {
//can happen..
_set_error(RTR("Unexpected end of expression."));
return nullptr;
}
}
//consecutively do unary operators
for (int i = expr_pos - 1; i >= next_op; i--) {
OperatorNode *op = alloc_node<OperatorNode>();
op->op = expression[i].op;
if ((op->op == OP_INCREMENT || op->op == OP_DECREMENT) && !_validate_assign(expression[i + 1].node, p_function_info)) {
_set_error(RTR("Invalid use of increment/decrement operator in a constant expression."));
return nullptr;
}
op->arguments.push_back(expression[i + 1].node);
expression.write[i].is_op = false;
expression.write[i].node = op;
if (!_validate_operator(op, &op->return_cache, &op->return_array_size)) {
String at;
for (int j = 0; j < op->arguments.size(); j++) {
if (j > 0) {
at += ", ";
}
at += get_datatype_name(op->arguments[j]->get_datatype());
if (!op->arguments[j]->is_indexed() && op->arguments[j]->get_array_size() > 0) {
at += "[";
at += itos(op->arguments[j]->get_array_size());
at += "]";
}
}
_set_error(vformat(RTR("Invalid arguments to unary operator '%s': %s."), get_operator_text(op->op), at));
return nullptr;
}
expression.remove_at(i + 1);
}
} else if (is_ternary) {
if (next_op < 1 || next_op >= (expression.size() - 1)) {
_set_parsing_error();
ERR_FAIL_V(nullptr);
}
if (next_op + 2 >= expression.size() || !expression[next_op + 2].is_op || expression[next_op + 2].op != OP_SELECT_ELSE) {
_set_error(RTR("Missing matching ':' for select operator."));
return nullptr;
}
OperatorNode *op = alloc_node<OperatorNode>();
op->op = expression[next_op].op;
op->arguments.push_back(expression[next_op - 1].node);
op->arguments.push_back(expression[next_op + 1].node);
op->arguments.push_back(expression[next_op + 3].node);
expression.write[next_op - 1].is_op = false;
expression.write[next_op - 1].node = op;
if (!_validate_operator(op, &op->return_cache, &op->return_array_size)) {
String at;
for (int i = 0; i < op->arguments.size(); i++) {
if (i > 0) {
at += ", ";
}
at += get_datatype_name(op->arguments[i]->get_datatype());
if (!op->arguments[i]->is_indexed() && op->arguments[i]->get_array_size() > 0) {
at += "[";
at += itos(op->arguments[i]->get_array_size());
at += "]";
}
}
_set_error(vformat(RTR("Invalid argument to ternary operator: '%s'."), at));
return nullptr;
}
for (int i = 0; i < 4; i++) {
expression.remove_at(next_op);
}
} else {
if (next_op < 1 || next_op >= (expression.size() - 1)) {
_set_parsing_error();
ERR_FAIL_V(nullptr);
}
OperatorNode *op = alloc_node<OperatorNode>();
op->op = expression[next_op].op;
if (expression[next_op - 1].is_op) {
_set_parsing_error();
ERR_FAIL_V(nullptr);
}
if (_is_operator_assign(op->op)) {
String assign_message;
if (!_validate_assign(expression[next_op - 1].node, p_function_info, &assign_message)) {
_set_error(assign_message);
return nullptr;
}
}
if (expression[next_op + 1].is_op) {
// this is not invalid and can really appear
// but it becomes invalid anyway because no binary op
// can be followed by a unary op in a valid combination,
// due to how precedence works, unaries will always disappear first
_set_parsing_error();
}
op->arguments.push_back(expression[next_op - 1].node); //expression goes as left
op->arguments.push_back(expression[next_op + 1].node); //next expression goes as right
expression.write[next_op - 1].node = op;
//replace all 3 nodes by this operator and make it an expression
if (!_validate_operator(op, &op->return_cache, &op->return_array_size)) {
String at;
for (int i = 0; i < op->arguments.size(); i++) {
if (i > 0) {
at += ", ";
}
if (op->arguments[i]->get_datatype() == TYPE_STRUCT) {
at += op->arguments[i]->get_datatype_name();
} else {
at += get_datatype_name(op->arguments[i]->get_datatype());
}
if (!op->arguments[i]->is_indexed() && op->arguments[i]->get_array_size() > 0) {
at += "[";
at += itos(op->arguments[i]->get_array_size());
at += "]";
}
}
_set_error(vformat(RTR("Invalid arguments to operator '%s': '%s'."), get_operator_text(op->op), at));
return nullptr;
}
expression.remove_at(next_op);
expression.remove_at(next_op);
}
}
return expression[0].node;
}
ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, ShaderLanguage::Node *p_node) {
if (p_node->type != Node::NODE_TYPE_OPERATOR) {
return p_node;
}
//for now only reduce simple constructors
OperatorNode *op = static_cast<OperatorNode *>(p_node);
if (op->op == OP_CONSTRUCT) {
ERR_FAIL_COND_V(op->arguments[0]->type != Node::NODE_TYPE_VARIABLE, p_node);
DataType type = op->get_datatype();
DataType base = get_scalar_type(type);
int cardinality = get_cardinality(type);
Vector<ConstantNode::Value> values;
for (int i = 1; i < op->arguments.size(); i++) {
op->arguments.write[i] = _reduce_expression(p_block, op->arguments[i]);
if (op->arguments[i]->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[i]);
if (get_scalar_type(cn->datatype) == base) {
for (int j = 0; j < cn->values.size(); j++) {
values.push_back(cn->values[j]);
}
} else if (get_scalar_type(cn->datatype) == cn->datatype) {
ConstantNode::Value v;
if (!convert_constant(cn, base, &v)) {
return p_node;
}
values.push_back(v);
} else {
return p_node;
}
} else {
return p_node;
}
}
if (values.size() == 1) {
if (type >= TYPE_MAT2 && type <= TYPE_MAT4) {
ConstantNode::Value value = values[0];
ConstantNode::Value zero;
zero.real = 0.0f;
int size = 2 + (type - TYPE_MAT2);
values.clear();
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
values.push_back(i == j ? value : zero);
}
}
} else {
ConstantNode::Value value = values[0];
for (int i = 1; i < cardinality; i++) {
values.push_back(value);
}
}
} else if (values.size() != cardinality) {
ERR_PRINT("Failed to reduce expression, values and cardinality mismatch.");
return p_node;
}
ConstantNode *cn = alloc_node<ConstantNode>();
cn->datatype = op->get_datatype();
cn->values = values;
return cn;
} else if (op->op == OP_NEGATE) {
op->arguments.write[0] = _reduce_expression(p_block, op->arguments[0]);
if (op->arguments[0]->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[0]);
DataType base = get_scalar_type(cn->datatype);
Vector<ConstantNode::Value> values;
for (int i = 0; i < cn->values.size(); i++) {
ConstantNode::Value nv;
switch (base) {
case TYPE_BOOL: {
nv.boolean = !cn->values[i].boolean;
} break;
case TYPE_INT: {
nv.sint = -cn->values[i].sint;
} break;
case TYPE_UINT: {
// Intentionally wrap the unsigned int value, because GLSL does.
nv.uint = 0 - cn->values[i].uint;
} break;
case TYPE_FLOAT: {
nv.real = -cn->values[i].real;
} break;
default: {
}
}
values.push_back(nv);
}
cn->values = values;
return cn;
}
}
return p_node;
}
ShaderLanguage::Node *ShaderLanguage::_parse_and_reduce_expression(BlockNode *p_block, const FunctionInfo &p_function_info) {
ShaderLanguage::Node *expr = _parse_expression(p_block, p_function_info);
if (!expr) { //errored
return nullptr;
}
expr = _reduce_expression(p_block, expr);
return expr;
}
Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_function_info, bool p_just_one, bool p_can_break, bool p_can_continue) {
while (true) {
TkPos pos = _get_tkpos();
Token tk = _get_token();
#ifdef DEBUG_ENABLED
Token next;
#endif // DEBUG_ENABLED
if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_SWITCH) {
if (tk.type != TK_CF_CASE && tk.type != TK_CF_DEFAULT && tk.type != TK_CURLY_BRACKET_CLOSE) {
_set_error(vformat(RTR("A switch may only contain '%s' and '%s' blocks."), "case", "default"));
return ERR_PARSE_ERROR;
}
}
bool is_struct = shader->structs.has(tk.text);
bool is_var_init = false;
bool is_condition = false;
if (tk.type == TK_CURLY_BRACKET_CLOSE) { //end of block
if (p_just_one) {
_set_expected_error("}");
return ERR_PARSE_ERROR;
}
return OK;
} else if (tk.type == TK_CONST || is_token_precision(tk.type) || is_token_nonvoid_datatype(tk.type) || is_struct) {
is_var_init = true;
String struct_name = "";
if (is_struct) {
struct_name = tk.text;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_STRUCT_FLAG) && used_structs.has(struct_name)) {
used_structs[struct_name].used = true;
}
#endif // DEBUG_ENABLED
}
#ifdef DEBUG_ENABLED
uint32_t precision_flag = CF_PRECISION_MODIFIER;
keyword_completion_context = CF_DATATYPE;
if (!is_token_precision(tk.type)) {
if (!is_struct) {
keyword_completion_context |= precision_flag;
}
}
#endif // DEBUG_ENABLED
bool is_const = false;
if (tk.type == TK_CONST) {
is_const = true;
tk = _get_token();
if (!is_struct) {
is_struct = shader->structs.has(tk.text); // check again.
struct_name = tk.text;
}
}
DataPrecision precision = PRECISION_DEFAULT;
if (is_token_precision(tk.type)) {
precision = get_token_precision(tk.type);
tk = _get_token();
if (!is_struct) {
is_struct = shader->structs.has(tk.text); // check again.
}
#ifdef DEBUG_ENABLED
if (keyword_completion_context & precision_flag) {
keyword_completion_context ^= precision_flag;
}
#endif // DEBUG_ENABLED
}
#ifdef DEBUG_ENABLED
if (is_const && _lookup_next(next)) {
if (is_token_precision(next.type)) {
keyword_completion_context = CF_UNSPECIFIED;
}
if (is_token_datatype(next.type)) {
keyword_completion_context ^= CF_DATATYPE;
}
}
#endif // DEBUG_ENABLED
if (precision != PRECISION_DEFAULT) {
if (!is_token_nonvoid_datatype(tk.type)) {
_set_error(RTR("Expected variable type after precision modifier."));
return ERR_PARSE_ERROR;
}
}
if (!is_struct) {
if (!is_token_variable_datatype(tk.type)) {
_set_error(RTR("Invalid variable type (samplers are not allowed)."));
return ERR_PARSE_ERROR;
}
}
DataType type = is_struct ? TYPE_STRUCT : get_token_datatype(tk.type);
if (precision != PRECISION_DEFAULT && _validate_precision(type, precision) != OK) {
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
int array_size = 0;
bool fixed_array_size = false;
bool first = true;
VariableDeclarationNode *vdnode = alloc_node<VariableDeclarationNode>();
vdnode->precision = precision;
if (is_struct) {
vdnode->struct_name = struct_name;
vdnode->datatype = TYPE_STRUCT;
} else {
vdnode->datatype = type;
};
vdnode->is_const = is_const;
do {
bool unknown_size = false;
VariableDeclarationNode::Declaration decl;
tk = _get_token();
if (first) {
first = false;
if (tk.type != TK_IDENTIFIER && tk.type != TK_BRACKET_OPEN) {
_set_error(RTR("Expected an identifier or '[' after type."));
return ERR_PARSE_ERROR;
}
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(p_block, p_function_info, false, &decl.size_expression, &array_size, &unknown_size);
if (error != OK) {
return error;
}
decl.size = array_size;
fixed_array_size = true;
tk = _get_token();
}
}
if (tk.type != TK_IDENTIFIER) {
_set_error(RTR("Expected an identifier."));
return ERR_PARSE_ERROR;
}
StringName name = tk.text;
ShaderLanguage::IdentifierType itype;
if (_find_identifier(p_block, true, p_function_info, name, (ShaderLanguage::DataType *)nullptr, &itype)) {
if (itype != IDENTIFIER_FUNCTION) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
}
decl.name = name;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_LOCAL_VARIABLE_FLAG) && p_block) {
FunctionNode *parent_function = nullptr;
{
BlockNode *block = p_block;
while (block && !block->parent_function) {
block = block->parent_block;
}
parent_function = block->parent_function;
}
if (parent_function) {
StringName func_name = parent_function->name;
if (!used_local_vars.has(func_name)) {
used_local_vars.insert(func_name, HashMap<StringName, Usage>());
}
used_local_vars[func_name].insert(name, Usage(tk_line));
}
}
#endif // DEBUG_ENABLED
is_const_decl = is_const;
BlockNode::Variable var;
var.type = type;
var.precision = precision;
var.line = tk_line;
var.array_size = array_size;
var.is_const = is_const;
var.struct_name = struct_name;
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(p_block, p_function_info, false, &decl.size_expression, &var.array_size, &unknown_size);
if (error != OK) {
return error;
}
decl.size = var.array_size;
array_size = var.array_size;
tk = _get_token();
}
#ifdef DEBUG_ENABLED
if (var.type == DataType::TYPE_BOOL) {
keyword_completion_context = CF_BOOLEAN;
}
#endif // DEBUG_ENABLED
if (var.array_size > 0 || unknown_size) {
bool full_def = false;
if (tk.type == TK_OP_ASSIGN) {
TkPos prev_pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_IDENTIFIER) { // a function call array initialization
_set_tkpos(prev_pos);
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
_set_error(RTR("Expected array initializer."));
return ERR_PARSE_ERROR;
} else {
if (unknown_size) {
decl.size = n->get_array_size();
var.array_size = n->get_array_size();
}
if (!_compare_datatypes(var.type, var.struct_name, var.array_size, n->get_datatype(), n->get_datatype_name(), n->get_array_size())) {
return ERR_PARSE_ERROR;
}
decl.single_expression = true;
decl.initializer.push_back(n);
}
tk = _get_token();
} else {
if (tk.type != TK_CURLY_BRACKET_OPEN) {
if (unknown_size) {
_set_expected_error("{");
return ERR_PARSE_ERROR;
}
full_def = true;
DataPrecision precision2 = PRECISION_DEFAULT;
if (is_token_precision(tk.type)) {
precision2 = get_token_precision(tk.type);
tk = _get_token();
if (!is_token_nonvoid_datatype(tk.type)) {
_set_error(RTR("Expected data type after precision modifier."));
return ERR_PARSE_ERROR;
}
}
DataType type2;
StringName struct_name2 = "";
if (shader->structs.has(tk.text)) {
type2 = TYPE_STRUCT;
struct_name2 = tk.text;
} else {
if (!is_token_variable_datatype(tk.type)) {
_set_error(RTR("Invalid data type for the array."));
return ERR_PARSE_ERROR;
}
type2 = get_token_datatype(tk.type);
}
if (precision2 != PRECISION_DEFAULT && _validate_precision(type2, precision2) != OK) {
return ERR_PARSE_ERROR;
}
int array_size2 = 0;
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
bool is_unknown_size = false;
Error error = _parse_array_size(p_block, p_function_info, false, nullptr, &array_size2, &is_unknown_size);
if (error != OK) {
return error;
}
if (is_unknown_size) {
array_size2 = var.array_size;
}
tk = _get_token();
} else {
_set_expected_error("[");
return ERR_PARSE_ERROR;
}
if (precision != precision2 || type != type2 || struct_name != struct_name2 || var.array_size != array_size2) {
String from;
if (precision2 != PRECISION_DEFAULT) {
from += get_precision_name(precision2);
from += " ";
}
if (type2 == TYPE_STRUCT) {
from += struct_name2;
} else {
from += get_datatype_name(type2);
}
from += "[";
from += itos(array_size2);
from += "]'";
String to;
if (precision != PRECISION_DEFAULT) {
to += get_precision_name(precision);
to += " ";
}
if (type == TYPE_STRUCT) {
to += struct_name;
} else {
to += get_datatype_name(type);
}
to += "[";
to += itos(var.array_size);
to += "]'";
_set_error(vformat(RTR("Cannot convert from '%s' to '%s'."), from, to));
return ERR_PARSE_ERROR;
}
}
bool curly = tk.type == TK_CURLY_BRACKET_OPEN;
if (unknown_size) {
if (!curly) {
_set_expected_error("{");
return ERR_PARSE_ERROR;
}
} else {
if (full_def) {
if (curly) {
_set_expected_error("(");
return ERR_PARSE_ERROR;
}
}
}
if (tk.type == TK_PARENTHESIS_OPEN || curly) { // initialization
while (true) {
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return ERR_PARSE_ERROR;
}
if (is_const && n->type == Node::NODE_TYPE_OPERATOR && static_cast<OperatorNode *>(n)->op == OP_CALL) {
_set_error(RTR("Expected a constant expression."));
return ERR_PARSE_ERROR;
}
if (!_compare_datatypes(var.type, struct_name, 0, n->get_datatype(), n->get_datatype_name(), 0)) {
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type == TK_COMMA) {
decl.initializer.push_back(n);
continue;
} else if (!curly && tk.type == TK_PARENTHESIS_CLOSE) {
decl.initializer.push_back(n);
break;
} else if (curly && tk.type == TK_CURLY_BRACKET_CLOSE) {
decl.initializer.push_back(n);
break;
} else {
if (curly) {
_set_expected_error("}", ",");
} else {
_set_expected_error(")", ",");
}
return ERR_PARSE_ERROR;
}
}
if (unknown_size) {
decl.size = decl.initializer.size();
var.array_size = decl.initializer.size();
} else if (decl.initializer.size() != var.array_size) {
_set_error(RTR("Array size mismatch."));
return ERR_PARSE_ERROR;
}
tk = _get_token();
}
}
} else {
if (unknown_size) {
_set_error(RTR("Expected array initialization."));
return ERR_PARSE_ERROR;
}
if (is_const) {
_set_error(RTR("Expected initialization of constant."));
return ERR_PARSE_ERROR;
}
}
array_size = var.array_size;
} else if (tk.type == TK_OP_ASSIGN) {
//variable created with assignment! must parse an expression
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return ERR_PARSE_ERROR;
}
if (is_const && n->type == Node::NODE_TYPE_OPERATOR && static_cast<OperatorNode *>(n)->op == OP_CALL) {
OperatorNode *op = static_cast<OperatorNode *>(n);
for (int i = 1; i < op->arguments.size(); i++) {
if (!_check_node_constness(op->arguments[i])) {
_set_error(vformat(RTR("Expected constant expression for argument %d of function call after '='."), i - 1));
return ERR_PARSE_ERROR;
}
}
}
if (n->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *const_node = static_cast<ConstantNode *>(n);
if (const_node && const_node->values.size() == 1) {
var.value = const_node->values[0];
}
}
if (!_compare_datatypes(var.type, var.struct_name, var.array_size, n->get_datatype(), n->get_datatype_name(), n->get_array_size())) {
return ERR_PARSE_ERROR;
}
decl.initializer.push_back(n);
tk = _get_token();
} else {
if (is_const) {
_set_error(RTR("Expected initialization of constant."));
return ERR_PARSE_ERROR;
}
}
vdnode->declarations.push_back(decl);
p_block->variables[name] = var;
is_const_decl = false;
if (!fixed_array_size) {
array_size = 0;
}
if (tk.type == TK_SEMICOLON) {
break;
} else if (tk.type != TK_COMMA) {
_set_expected_error(",", ";");
return ERR_PARSE_ERROR;
}
} while (tk.type == TK_COMMA); //another variable
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_BLOCK;
#endif // DEBUG_ENABLED
p_block->statements.push_back(static_cast<Node *>(vdnode));
} else if (tk.type == TK_CURLY_BRACKET_OPEN) {
//a sub block, just because..
BlockNode *block = alloc_node<BlockNode>();
block->parent_block = p_block;
if (_parse_block(block, p_function_info, false, p_can_break, p_can_continue) != OK) {
return ERR_PARSE_ERROR;
}
p_block->statements.push_back(block);
} else if (tk.type == TK_CF_IF) {
//if () {}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "if");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
cf->flow_op = FLOW_OP_IF;
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_IF_DECL;
#endif // DEBUG_ENABLED
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_BLOCK;
#endif // DEBUG_ENABLED
if (n->get_datatype() != TYPE_BOOL) {
_set_error(RTR("Expected a boolean expression."));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return ERR_PARSE_ERROR;
}
BlockNode *block = alloc_node<BlockNode>();
block->parent_block = p_block;
cf->expressions.push_back(n);
cf->blocks.push_back(block);
p_block->statements.push_back(cf);
Error err = _parse_block(block, p_function_info, true, p_can_break, p_can_continue);
if (err) {
return err;
}
pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_CF_ELSE) {
block = alloc_node<BlockNode>();
block->parent_block = p_block;
cf->blocks.push_back(block);
err = _parse_block(block, p_function_info, true, p_can_break, p_can_continue);
if (err) {
return err;
}
} else {
_set_tkpos(pos); //rollback
}
} else if (tk.type == TK_CF_SWITCH) {
// switch() {}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "switch");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
cf->flow_op = FLOW_OP_SWITCH;
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return ERR_PARSE_ERROR;
}
{
const ShaderLanguage::DataType switch_type = n->get_datatype();
if (switch_type != TYPE_INT && switch_type != TYPE_UINT) {
_set_error(RTR("Expected an integer expression."));
return ERR_PARSE_ERROR;
}
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_CURLY_BRACKET_OPEN) {
_set_expected_after_error("{", "switch");
return ERR_PARSE_ERROR;
}
BlockNode *switch_block = alloc_node<BlockNode>();
switch_block->block_type = BlockNode::BLOCK_TYPE_SWITCH;
switch_block->parent_block = p_block;
cf->expressions.push_back(n);
cf->blocks.push_back(switch_block);
p_block->statements.push_back(cf);
int prev_type = TK_CF_CASE;
while (true) { // Go-through multiple cases.
if (_parse_block(switch_block, p_function_info, true, true, false) != OK) {
return ERR_PARSE_ERROR;
}
pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_CF_CASE || tk.type == TK_CF_DEFAULT) {
if (prev_type == TK_CF_DEFAULT) {
if (tk.type == TK_CF_CASE) {
_set_error(RTR("Cases must be defined before default case."));
return ERR_PARSE_ERROR;
} else if (prev_type == TK_CF_DEFAULT) {
_set_error(RTR("Default case must be defined only once."));
return ERR_PARSE_ERROR;
}
}
prev_type = tk.type;
_set_tkpos(pos);
continue;
} else {
HashSet<int> constants;
for (int i = 0; i < switch_block->statements.size(); i++) { // Checks for duplicates.
ControlFlowNode *flow = static_cast<ControlFlowNode *>(switch_block->statements[i]);
if (flow) {
if (flow->flow_op == FLOW_OP_CASE) {
if (flow->expressions[0]->type == Node::NODE_TYPE_CONSTANT) {
ConstantNode *cn = static_cast<ConstantNode *>(flow->expressions[0]);
if (!cn || cn->values.is_empty()) {
return ERR_PARSE_ERROR;
}
if (constants.has(cn->values[0].sint)) {
_set_error(vformat(RTR("Duplicated case label: %d."), cn->values[0].sint));
return ERR_PARSE_ERROR;
}
constants.insert(cn->values[0].sint);
} else if (flow->expressions[0]->type == Node::NODE_TYPE_VARIABLE) {
VariableNode *vn = static_cast<VariableNode *>(flow->expressions[0]);
if (!vn) {
return ERR_PARSE_ERROR;
}
ConstantNode::Value v;
_find_identifier(p_block, false, p_function_info, vn->name, nullptr, nullptr, nullptr, nullptr, nullptr, &v);
if (constants.has(v.sint)) {
_set_error(vformat(RTR("Duplicated case label: %d."), v.sint));
return ERR_PARSE_ERROR;
}
constants.insert(v.sint);
}
} else if (flow->flow_op == FLOW_OP_DEFAULT) {
continue;
} else {
return ERR_PARSE_ERROR;
}
} else {
return ERR_PARSE_ERROR;
}
}
break;
}
}
} else if (tk.type == TK_CF_CASE) {
// case x : break; | return;
if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_CASE) {
_set_tkpos(pos);
return OK;
}
if (!p_block || (p_block->block_type != BlockNode::BLOCK_TYPE_SWITCH)) {
_set_error(vformat(RTR("'%s' must be placed within a '%s' block."), "case", "switch"));
return ERR_PARSE_ERROR;
}
tk = _get_token();
int sign = 1;
if (tk.type == TK_OP_SUB) {
sign = -1;
tk = _get_token();
}
Node *n = nullptr;
if (!tk.is_integer_constant()) {
bool correct_constant_expression = false;
DataType data_type;
if (tk.type == TK_IDENTIFIER) {
bool is_const;
_find_identifier(p_block, false, p_function_info, tk.text, &data_type, nullptr, &is_const);
if (is_const) {
if (data_type == TYPE_INT) {
correct_constant_expression = true;
}
}
}
if (!correct_constant_expression) {
_set_error(RTR("Expected an integer constant."));
return ERR_PARSE_ERROR;
}
VariableNode *vn = alloc_node<VariableNode>();
vn->name = tk.text;
n = vn;
} else {
ConstantNode::Value v;
if (tk.type == TK_UINT_CONSTANT) {
v.uint = (uint32_t)tk.constant;
} else {
v.sint = (int)tk.constant * sign;
}
ConstantNode *cn = alloc_node<ConstantNode>();
cn->values.push_back(v);
cn->datatype = (tk.type == TK_UINT_CONSTANT ? TYPE_UINT : TYPE_INT);
n = cn;
}
tk = _get_token();
if (tk.type != TK_COLON) {
_set_expected_error(":");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
cf->flow_op = FLOW_OP_CASE;
BlockNode *case_block = alloc_node<BlockNode>();
case_block->block_type = BlockNode::BLOCK_TYPE_CASE;
case_block->parent_block = p_block;
cf->expressions.push_back(n);
cf->blocks.push_back(case_block);
p_block->statements.push_back(cf);
Error err = _parse_block(case_block, p_function_info, false, true, false);
if (err) {
return err;
}
return OK;
} else if (tk.type == TK_CF_DEFAULT) {
if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_CASE) {
_set_tkpos(pos);
return OK;
}
if (!p_block || (p_block->block_type != BlockNode::BLOCK_TYPE_SWITCH)) {
_set_error(vformat(RTR("'%s' must be placed within a '%s' block."), "default", "switch"));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_COLON) {
_set_expected_error(":");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
cf->flow_op = FLOW_OP_DEFAULT;
BlockNode *default_block = alloc_node<BlockNode>();
default_block->block_type = BlockNode::BLOCK_TYPE_DEFAULT;
default_block->parent_block = p_block;
cf->blocks.push_back(default_block);
p_block->statements.push_back(cf);
Error err = _parse_block(default_block, p_function_info, false, true, false);
if (err) {
return err;
}
return OK;
} else if (tk.type == TK_CF_DO || tk.type == TK_CF_WHILE) {
// do {} while()
// while() {}
bool is_do = tk.type == TK_CF_DO;
BlockNode *do_block = nullptr;
if (is_do) {
do_block = alloc_node<BlockNode>();
do_block->parent_block = p_block;
Error err = _parse_block(do_block, p_function_info, true, true, true);
if (err) {
return err;
}
tk = _get_token();
if (tk.type != TK_CF_WHILE) {
_set_expected_after_error("while", "do");
return ERR_PARSE_ERROR;
}
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "while");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
if (is_do) {
cf->flow_op = FLOW_OP_DO;
} else {
cf->flow_op = FLOW_OP_WHILE;
}
Node *n = _parse_and_reduce_expression(p_block, p_function_info);
if (!n) {
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return ERR_PARSE_ERROR;
}
if (!is_do) {
BlockNode *block = alloc_node<BlockNode>();
block->parent_block = p_block;
cf->expressions.push_back(n);
cf->blocks.push_back(block);
p_block->statements.push_back(cf);
Error err = _parse_block(block, p_function_info, true, true, true);
if (err) {
return err;
}
} else {
cf->expressions.push_back(n);
cf->blocks.push_back(do_block);
p_block->statements.push_back(cf);
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
}
} else if (tk.type == TK_CF_FOR) {
// for() {}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "for");
return ERR_PARSE_ERROR;
}
ControlFlowNode *cf = alloc_node<ControlFlowNode>();
cf->flow_op = FLOW_OP_FOR;
BlockNode *init_block = alloc_node<BlockNode>();
init_block->block_type = BlockNode::BLOCK_TYPE_FOR_INIT;
init_block->parent_block = p_block;
init_block->single_statement = true;
cf->blocks.push_back(init_block);
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_DATATYPE;
#endif // DEBUG_ENABLED
Error err = _parse_block(init_block, p_function_info, true, false, false);
if (err != OK) {
return err;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
BlockNode *condition_block = alloc_node<BlockNode>();
condition_block->block_type = BlockNode::BLOCK_TYPE_FOR_CONDITION;
condition_block->parent_block = init_block;
condition_block->single_statement = true;
condition_block->use_comma_between_statements = true;
cf->blocks.push_back(condition_block);
err = _parse_block(condition_block, p_function_info, true, false, false);
if (err != OK) {
return err;
}
BlockNode *expression_block = alloc_node<BlockNode>();
expression_block->block_type = BlockNode::BLOCK_TYPE_FOR_EXPRESSION;
expression_block->parent_block = init_block;
expression_block->single_statement = true;
expression_block->use_comma_between_statements = true;
cf->blocks.push_back(expression_block);
err = _parse_block(expression_block, p_function_info, true, false, false);
if (err != OK) {
return err;
}
BlockNode *block = alloc_node<BlockNode>();
block->parent_block = init_block;
cf->blocks.push_back(block);
p_block->statements.push_back(cf);
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_BLOCK;
#endif // DEBUG_ENABLED
err = _parse_block(block, p_function_info, true, true, true);
if (err != OK) {
return err;
}
} else if (tk.type == TK_CF_RETURN) {
//check return type
BlockNode *b = p_block;
while (b && !b->parent_function) {
b = b->parent_block;
}
if (!b) {
_set_parsing_error();
return ERR_BUG;
}
if (b->parent_function && p_function_info.main_function) {
_set_error(vformat(RTR("Using '%s' in the '%s' processor function is incorrect."), "return", b->parent_function->name));
return ERR_PARSE_ERROR;
}
String return_struct_name = String(b->parent_function->return_struct_name);
String array_size_string;
if (b->parent_function->return_array_size > 0) {
array_size_string = "[" + itos(b->parent_function->return_array_size) + "]";
}
ControlFlowNode *flow = alloc_node<ControlFlowNode>();
flow->flow_op = FLOW_OP_RETURN;
pos = _get_tkpos();
tk = _get_token();
if (tk.type == TK_SEMICOLON) {
//all is good
if (b->parent_function->return_type != TYPE_VOID) {
_set_error(vformat(RTR("Expected '%s' with an expression of type '%s'."), "return", (!return_struct_name.is_empty() ? return_struct_name : get_datatype_name(b->parent_function->return_type)) + array_size_string));
return ERR_PARSE_ERROR;
}
} else {
_set_tkpos(pos); //rollback, wants expression
#ifdef DEBUG_ENABLED
if (b->parent_function->return_type == DataType::TYPE_BOOL) {
keyword_completion_context = CF_BOOLEAN;
}
#endif // DEBUG_ENABLED
Node *expr = _parse_and_reduce_expression(p_block, p_function_info);
if (!expr) {
return ERR_PARSE_ERROR;
}
if (b->parent_function->return_type != expr->get_datatype() || b->parent_function->return_array_size != expr->get_array_size() || return_struct_name != expr->get_datatype_name()) {
_set_error(vformat(RTR("Expected return with an expression of type '%s'."), (!return_struct_name.is_empty() ? return_struct_name : get_datatype_name(b->parent_function->return_type)) + array_size_string));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_after_error(";", "return");
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
if (b->parent_function->return_type == DataType::TYPE_BOOL) {
keyword_completion_context = CF_BLOCK;
}
#endif // DEBUG_ENABLED
flow->expressions.push_back(expr);
}
p_block->statements.push_back(flow);
BlockNode *block = p_block;
while (block) {
if (block->block_type == BlockNode::BLOCK_TYPE_CASE || block->block_type == BlockNode::BLOCK_TYPE_DEFAULT) {
return OK;
}
block = block->parent_block;
}
} else if (tk.type == TK_CF_DISCARD) {
//check return type
BlockNode *b = p_block;
while (b && !b->parent_function) {
b = b->parent_block;
}
if (!b) {
_set_parsing_error();
return ERR_BUG;
}
if (!b->parent_function->can_discard) {
_set_error(vformat(RTR("Use of '%s' is not allowed here."), "discard"));
return ERR_PARSE_ERROR;
}
ControlFlowNode *flow = alloc_node<ControlFlowNode>();
flow->flow_op = FLOW_OP_DISCARD;
pos = _get_tkpos();
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_after_error(";", "discard");
return ERR_PARSE_ERROR;
}
p_block->statements.push_back(flow);
} else if (tk.type == TK_CF_BREAK) {
if (!p_can_break) {
_set_error(vformat(RTR("'%s' is not allowed outside of a loop or '%s' statement."), "break", "switch"));
return ERR_PARSE_ERROR;
}
ControlFlowNode *flow = alloc_node<ControlFlowNode>();
flow->flow_op = FLOW_OP_BREAK;
pos = _get_tkpos();
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_after_error(";", "break");
return ERR_PARSE_ERROR;
}
p_block->statements.push_back(flow);
BlockNode *block = p_block;
while (block) {
if (block->block_type == BlockNode::BLOCK_TYPE_CASE || block->block_type == BlockNode::BLOCK_TYPE_DEFAULT) {
return OK;
}
block = block->parent_block;
}
} else if (tk.type == TK_CF_CONTINUE) {
if (!p_can_continue) {
_set_error(vformat(RTR("'%s' is not allowed outside of a loop."), "continue"));
return ERR_PARSE_ERROR;
}
ControlFlowNode *flow = alloc_node<ControlFlowNode>();
flow->flow_op = FLOW_OP_CONTINUE;
pos = _get_tkpos();
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
//all is good
_set_expected_after_error(";", "continue");
return ERR_PARSE_ERROR;
}
p_block->statements.push_back(flow);
} else {
//nothing else, so expression
_set_tkpos(pos); //rollback
Node *expr = _parse_and_reduce_expression(p_block, p_function_info);
if (!expr) {
return ERR_PARSE_ERROR;
}
is_condition = expr->type == Node::NODE_TYPE_OPERATOR && expr->get_datatype() == TYPE_BOOL;
if (expr->type == Node::NODE_TYPE_OPERATOR) {
OperatorNode *op = static_cast<OperatorNode *>(expr);
if (op->op == OP_EMPTY) {
is_var_init = true;
is_condition = true;
}
}
p_block->statements.push_back(expr);
tk = _get_token();
if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_CONDITION) {
if (tk.type == TK_COMMA) {
if (!is_condition) {
_set_error(RTR("The middle expression is expected to be a boolean operator."));
return ERR_PARSE_ERROR;
}
continue;
}
if (tk.type != TK_SEMICOLON) {
_set_expected_error(",", ";");
return ERR_PARSE_ERROR;
}
} else if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_EXPRESSION) {
if (tk.type == TK_COMMA) {
continue;
}
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(",", ")");
return ERR_PARSE_ERROR;
}
} else if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
}
if (p_block) {
if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_INIT && !is_var_init) {
_set_error(RTR("The left expression is expected to be a variable declaration."));
return ERR_PARSE_ERROR;
}
if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_CONDITION && !is_condition) {
_set_error(RTR("The middle expression is expected to be a boolean operator."));
return ERR_PARSE_ERROR;
}
}
if (p_just_one) {
break;
}
}
return OK;
}
String ShaderLanguage::_get_shader_type_list(const HashSet<String> &p_shader_types) const {
// Return a list of shader types as an human-readable string
String valid_types;
for (const String &E : p_shader_types) {
if (!valid_types.is_empty()) {
valid_types += ", ";
}
valid_types += "'" + E + "'";
}
return valid_types;
}
String ShaderLanguage::_get_qualifier_str(ArgumentQualifier p_qualifier) const {
switch (p_qualifier) {
case ArgumentQualifier::ARGUMENT_QUALIFIER_IN:
return "in";
case ArgumentQualifier::ARGUMENT_QUALIFIER_OUT:
return "out";
case ArgumentQualifier::ARGUMENT_QUALIFIER_INOUT:
return "inout";
}
return "";
}
Error ShaderLanguage::_validate_precision(DataType p_type, DataPrecision p_precision) {
switch (p_type) {
case TYPE_STRUCT: {
_set_error(RTR("The precision modifier cannot be used on structs."));
return FAILED;
} break;
case TYPE_BOOL:
case TYPE_BVEC2:
case TYPE_BVEC3:
case TYPE_BVEC4: {
_set_error(RTR("The precision modifier cannot be used on boolean types."));
return FAILED;
} break;
default:
break;
}
return OK;
}
Error ShaderLanguage::_parse_shader(const HashMap<StringName, FunctionInfo> &p_functions, const Vector<ModeInfo> &p_render_modes, const HashSet<String> &p_shader_types) {
Token tk;
TkPos prev_pos;
Token next;
if (!is_shader_inc) {
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_SHADER_TYPE;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type != TK_SHADER_TYPE) {
_set_error(vformat(RTR("Expected '%s' at the beginning of shader. Valid types are: %s."), "shader_type", _get_shader_type_list(p_shader_types)));
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
_get_completable_identifier(nullptr, COMPLETION_SHADER_TYPE, shader_type_identifier);
if (shader_type_identifier == StringName()) {
_set_error(vformat(RTR("Expected an identifier after '%s', indicating the type of shader. Valid types are: %s."), "shader_type", _get_shader_type_list(p_shader_types)));
return ERR_PARSE_ERROR;
}
if (!p_shader_types.has(shader_type_identifier)) {
_set_error(vformat(RTR("Invalid shader type. Valid types are: %s"), _get_shader_type_list(p_shader_types)));
return ERR_PARSE_ERROR;
}
prev_pos = _get_tkpos();
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_tkpos(prev_pos);
_set_expected_after_error(";", "shader_type " + String(shader_type_identifier));
return ERR_PARSE_ERROR;
}
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_GLOBAL_SPACE;
#endif // DEBUG_ENABLED
tk = _get_token();
int texture_uniforms = 0;
int texture_binding = 0;
int uniforms = 0;
int instance_index = 0;
#ifdef DEBUG_ENABLED
uint64_t uniform_buffer_size = 0;
uint64_t max_uniform_buffer_size = 0;
int uniform_buffer_exceeded_line = -1;
bool check_device_limit_warnings = false;
{
RenderingDevice *device = RenderingDevice::get_singleton();
if (device != nullptr) {
check_device_limit_warnings = check_warnings && HAS_WARNING(ShaderWarning::DEVICE_LIMIT_EXCEEDED_FLAG);
max_uniform_buffer_size = device->limit_get(RenderingDevice::LIMIT_MAX_UNIFORM_BUFFER_SIZE);
}
}
#endif // DEBUG_ENABLED
ShaderNode::Uniform::Scope uniform_scope = ShaderNode::Uniform::SCOPE_LOCAL;
stages = &p_functions;
const FunctionInfo &constants = p_functions.has("constants") ? p_functions["constants"] : FunctionInfo();
HashMap<String, String> defined_modes;
while (tk.type != TK_EOF) {
switch (tk.type) {
case TK_RENDER_MODE: {
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
while (true) {
StringName mode;
_get_completable_identifier(nullptr, COMPLETION_RENDER_MODE, mode);
if (mode == StringName()) {
_set_error(RTR("Expected an identifier for render mode."));
return ERR_PARSE_ERROR;
}
const String smode = String(mode);
if (shader->render_modes.has(mode)) {
_set_error(vformat(RTR("Duplicated render mode: '%s'."), smode));
return ERR_PARSE_ERROR;
}
bool found = false;
if (is_shader_inc) {
for (int i = 0; i < RenderingServer::SHADER_MAX; i++) {
const Vector<ModeInfo> modes = ShaderTypes::get_singleton()->get_modes(RenderingServer::ShaderMode(i));
for (int j = 0; j < modes.size(); j++) {
const ModeInfo &info = modes[j];
const String name = String(info.name);
if (smode.begins_with(name)) {
if (!info.options.is_empty()) {
if (info.options.has(smode.substr(name.length() + 1))) {
found = true;
if (defined_modes.has(name)) {
_set_error(vformat(RTR("Redefinition of render mode: '%s'. The '%s' mode has already been set to '%s'."), smode, name, defined_modes[name]));
return ERR_PARSE_ERROR;
}
defined_modes.insert(name, smode);
break;
}
} else {
found = true;
break;
}
}
}
}
} else {
for (int i = 0; i < p_render_modes.size(); i++) {
const ModeInfo &info = p_render_modes[i];
const String name = String(info.name);
if (smode.begins_with(name)) {
if (!info.options.is_empty()) {
if (info.options.has(smode.substr(name.length() + 1))) {
found = true;
if (defined_modes.has(name)) {
_set_error(vformat(RTR("Redefinition of render mode: '%s'. The '%s' mode has already been set to '%s'."), smode, name, defined_modes[name]));
return ERR_PARSE_ERROR;
}
defined_modes.insert(name, smode);
break;
}
} else {
found = true;
break;
}
}
}
}
if (!found) {
_set_error(vformat(RTR("Invalid render mode: '%s'."), smode));
return ERR_PARSE_ERROR;
}
shader->render_modes.push_back(mode);
tk = _get_token();
if (tk.type == TK_COMMA) {
//all good, do nothing
} else if (tk.type == TK_SEMICOLON) {
break; //done
} else {
_set_error(vformat(RTR("Unexpected token: '%s'."), get_token_text(tk)));
return ERR_PARSE_ERROR;
}
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_GLOBAL_SPACE;
#endif // DEBUG_ENABLED
} break;
case TK_STRUCT: {
ShaderNode::Struct st;
DataType type;
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type == TK_IDENTIFIER) {
st.name = tk.text;
if (shader->constants.has(st.name) || shader->structs.has(st.name)) {
_set_redefinition_error(String(st.name));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_CURLY_BRACKET_OPEN) {
_set_expected_error("{");
return ERR_PARSE_ERROR;
}
} else {
_set_error(RTR("Expected a struct identifier."));
return ERR_PARSE_ERROR;
}
StructNode *st_node = alloc_node<StructNode>();
st.shader_struct = st_node;
int member_count = 0;
HashSet<String> member_names;
while (true) { // variables list
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_DATATYPE | CF_PRECISION_MODIFIER;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type == TK_CURLY_BRACKET_CLOSE) {
break;
}
StringName struct_name = "";
bool struct_dt = false;
DataPrecision precision = PRECISION_DEFAULT;
if (tk.type == TK_STRUCT) {
_set_error(RTR("Nested structs are not allowed."));
return ERR_PARSE_ERROR;
}
if (is_token_precision(tk.type)) {
precision = get_token_precision(tk.type);
tk = _get_token();
#ifdef DEBUG_ENABLED
keyword_completion_context ^= CF_PRECISION_MODIFIER;
#endif // DEBUG_ENABLED
}
if (shader->structs.has(tk.text)) {
struct_name = tk.text;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_STRUCT_FLAG) && used_structs.has(struct_name)) {
used_structs[struct_name].used = true;
}
#endif // DEBUG_ENABLED
struct_dt = true;
}
if (!is_token_datatype(tk.type) && !struct_dt) {
_set_error(RTR("Expected data type."));
return ERR_PARSE_ERROR;
} else {
type = struct_dt ? TYPE_STRUCT : get_token_datatype(tk.type);
if (precision != PRECISION_DEFAULT && _validate_precision(type, precision) != OK) {
return ERR_PARSE_ERROR;
}
if (type == TYPE_VOID || is_sampler_type(type)) {
_set_error(vformat(RTR("A '%s' data type is not allowed here."), get_datatype_name(type)));
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
bool first = true;
bool fixed_array_size = false;
int array_size = 0;
do {
tk = _get_token();
if (first) {
first = false;
if (tk.type != TK_IDENTIFIER && tk.type != TK_BRACKET_OPEN) {
_set_error(RTR("Expected an identifier or '['."));
return ERR_PARSE_ERROR;
}
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &array_size, nullptr);
if (error != OK) {
return error;
}
fixed_array_size = true;
tk = _get_token();
}
}
if (tk.type != TK_IDENTIFIER) {
_set_error(RTR("Expected an identifier."));
return ERR_PARSE_ERROR;
}
MemberNode *member = alloc_node<MemberNode>();
member->precision = precision;
member->datatype = type;
member->struct_name = struct_name;
member->name = tk.text;
member->array_size = array_size;
if (member_names.has(member->name)) {
_set_redefinition_error(String(member->name));
return ERR_PARSE_ERROR;
}
member_names.insert(member->name);
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &member->array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
if (!fixed_array_size) {
array_size = 0;
}
if (tk.type != TK_SEMICOLON && tk.type != TK_COMMA) {
_set_expected_error(",", ";");
return ERR_PARSE_ERROR;
}
st_node->members.push_back(member);
member_count++;
} while (tk.type == TK_COMMA); // another member
}
}
if (member_count == 0) {
_set_error(RTR("Empty structs are not allowed."));
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_GLOBAL_SPACE;
#endif // DEBUG_ENABLED
shader->structs[st.name] = st;
shader->vstructs.push_back(st); // struct's order is important!
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_STRUCT_FLAG)) {
used_structs.insert(st.name, Usage(tk_line));
}
#endif // DEBUG_ENABLED
} break;
case TK_GLOBAL: {
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNIFORM_KEYWORD;
if (_lookup_next(next)) {
if (next.type == TK_UNIFORM) {
keyword_completion_context ^= CF_UNIFORM_KEYWORD;
}
}
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type != TK_UNIFORM) {
_set_expected_after_error("uniform", "global");
return ERR_PARSE_ERROR;
}
uniform_scope = ShaderNode::Uniform::SCOPE_GLOBAL;
};
[[fallthrough]];
case TK_INSTANCE: {
if (tk.type == TK_INSTANCE) {
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNIFORM_KEYWORD;
if (_lookup_next(next)) {
if (next.type == TK_UNIFORM) {
keyword_completion_context ^= CF_UNIFORM_KEYWORD;
}
}
#endif // DEBUG_ENABLED
if (String(shader_type_identifier) != "spatial") {
_set_error(vformat(RTR("Uniform instances are not yet implemented for '%s' shaders."), shader_type_identifier));
return ERR_PARSE_ERROR;
}
if (OS::get_singleton()->get_current_rendering_method() == "gl_compatibility") {
_set_error(RTR("Uniform instances are not supported in gl_compatibility shaders."));
return ERR_PARSE_ERROR;
}
if (uniform_scope == ShaderNode::Uniform::SCOPE_LOCAL) {
tk = _get_token();
if (tk.type != TK_UNIFORM) {
_set_expected_after_error("uniform", "instance");
return ERR_PARSE_ERROR;
}
uniform_scope = ShaderNode::Uniform::SCOPE_INSTANCE;
}
}
};
[[fallthrough]];
case TK_UNIFORM:
case TK_VARYING: {
bool is_uniform = tk.type == TK_UNIFORM;
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
if (!is_uniform) {
if (shader_type_identifier == "particles" || shader_type_identifier == "sky" || shader_type_identifier == "fog") {
_set_error(vformat(RTR("Varyings cannot be used in '%s' shaders."), shader_type_identifier));
return ERR_PARSE_ERROR;
}
}
DataPrecision precision = PRECISION_DEFAULT;
DataInterpolation interpolation = INTERPOLATION_DEFAULT;
DataType type;
StringName name;
int array_size = 0;
tk = _get_token();
#ifdef DEBUG_ENABLED
bool temp_error = false;
uint32_t datatype_flag;
if (!is_uniform) {
datatype_flag = CF_VARYING_TYPE;
keyword_completion_context = CF_INTERPOLATION_QUALIFIER | CF_PRECISION_MODIFIER | datatype_flag;
if (_lookup_next(next)) {
if (is_token_interpolation(next.type)) {
keyword_completion_context ^= (CF_INTERPOLATION_QUALIFIER | datatype_flag);
} else if (is_token_precision(next.type)) {
keyword_completion_context ^= (CF_PRECISION_MODIFIER | datatype_flag);
} else if (is_token_datatype(next.type)) {
keyword_completion_context ^= datatype_flag;
}
}
} else {
datatype_flag = CF_UNIFORM_TYPE;
keyword_completion_context = CF_PRECISION_MODIFIER | datatype_flag;
if (_lookup_next(next)) {
if (is_token_precision(next.type)) {
keyword_completion_context ^= (CF_PRECISION_MODIFIER | datatype_flag);
} else if (is_token_datatype(next.type)) {
keyword_completion_context ^= datatype_flag;
}
}
}
#endif // DEBUG_ENABLED
if (is_token_interpolation(tk.type)) {
if (is_uniform) {
_set_error(RTR("Interpolation qualifiers are not supported for uniforms."));
#ifdef DEBUG_ENABLED
temp_error = true;
#else
return ERR_PARSE_ERROR;
#endif // DEBUG_ENABLED
}
interpolation = get_token_interpolation(tk.type);
tk = _get_token();
#ifdef DEBUG_ENABLED
if (keyword_completion_context & CF_INTERPOLATION_QUALIFIER) {
keyword_completion_context ^= CF_INTERPOLATION_QUALIFIER;
}
if (_lookup_next(next)) {
if (is_token_precision(next.type)) {
keyword_completion_context ^= CF_PRECISION_MODIFIER;
} else if (is_token_datatype(next.type)) {
keyword_completion_context ^= datatype_flag;
}
}
if (temp_error) {
return ERR_PARSE_ERROR;
}
#endif // DEBUG_ENABLED
}
if (is_token_precision(tk.type)) {
precision = get_token_precision(tk.type);
tk = _get_token();
#ifdef DEBUG_ENABLED
if (keyword_completion_context & CF_INTERPOLATION_QUALIFIER) {
keyword_completion_context ^= CF_INTERPOLATION_QUALIFIER;
}
if (keyword_completion_context & CF_PRECISION_MODIFIER) {
keyword_completion_context ^= CF_PRECISION_MODIFIER;
}
if (_lookup_next(next)) {
if (is_token_datatype(next.type)) {
keyword_completion_context = CF_UNSPECIFIED;
}
}
#endif // DEBUG_ENABLED
}
if (shader->structs.has(tk.text)) {
if (is_uniform) {
_set_error(vformat(RTR("The '%s' data type is not supported for uniforms."), "struct"));
return ERR_PARSE_ERROR;
} else {
_set_error(vformat(RTR("The '%s' data type is not allowed here."), "struct"));
return ERR_PARSE_ERROR;
}
}
if (!is_token_datatype(tk.type)) {
_set_error(RTR("Expected data type."));
return ERR_PARSE_ERROR;
}
type = get_token_datatype(tk.type);
if (precision != PRECISION_DEFAULT && _validate_precision(type, precision) != OK) {
return ERR_PARSE_ERROR;
}
if (type == TYPE_VOID) {
_set_error(vformat(RTR("The '%s' data type is not allowed here."), "void"));
return ERR_PARSE_ERROR;
}
if (!is_uniform && interpolation != INTERPOLATION_DEFAULT && type < TYPE_INT) {
_set_error(vformat(RTR("Interpolation modifier '%s' cannot be used with boolean types."), get_interpolation_name(interpolation)));
return ERR_PARSE_ERROR;
}
if (!is_uniform && type > TYPE_MAT4) {
_set_error(RTR("Invalid data type for varying."));
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type != TK_IDENTIFIER && tk.type != TK_BRACKET_OPEN) {
_set_error(RTR("Expected an identifier or '['."));
return ERR_PARSE_ERROR;
}
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
if (tk.type != TK_IDENTIFIER) {
_set_error(RTR("Expected an identifier."));
return ERR_PARSE_ERROR;
}
prev_pos = _get_tkpos();
name = tk.text;
if (_find_identifier(nullptr, false, constants, name)) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
if (has_builtin(p_functions, name)) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
if (is_uniform) {
if (uniform_scope == ShaderNode::Uniform::SCOPE_GLOBAL && Engine::get_singleton()->is_editor_hint()) { // Type checking for global uniforms is not allowed outside the editor.
//validate global uniform
DataType gvtype = global_shader_uniform_get_type_func(name);
if (gvtype == TYPE_MAX) {
_set_error(vformat(RTR("Global uniform '%s' does not exist. Create it in Project Settings."), String(name)));
return ERR_PARSE_ERROR;
}
if (type != gvtype) {
_set_error(vformat(RTR("Global uniform '%s' must be of type '%s'."), String(name), get_datatype_name(gvtype)));
return ERR_PARSE_ERROR;
}
}
ShaderNode::Uniform uniform;
uniform.type = type;
uniform.scope = uniform_scope;
uniform.precision = precision;
uniform.array_size = array_size;
uniform.group = current_uniform_group_name;
uniform.subgroup = current_uniform_subgroup_name;
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &uniform.array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
if (is_sampler_type(type)) {
if (uniform_scope == ShaderNode::Uniform::SCOPE_INSTANCE) {
_set_error(vformat(RTR("The '%s' qualifier is not supported for sampler types."), "SCOPE_INSTANCE"));
return ERR_PARSE_ERROR;
}
uniform.texture_order = texture_uniforms++;
uniform.texture_binding = texture_binding;
if (uniform.array_size > 0) {
texture_binding += uniform.array_size;
} else {
++texture_binding;
}
uniform.order = -1;
} else {
if (uniform_scope == ShaderNode::Uniform::SCOPE_INSTANCE && (type == TYPE_MAT2 || type == TYPE_MAT3 || type == TYPE_MAT4)) {
_set_error(vformat(RTR("The '%s' qualifier is not supported for matrix types."), "SCOPE_INSTANCE"));
return ERR_PARSE_ERROR;
}
uniform.texture_order = -1;
if (uniform_scope != ShaderNode::Uniform::SCOPE_INSTANCE) {
uniform.order = uniforms++;
#ifdef DEBUG_ENABLED
if (check_device_limit_warnings) {
if (uniform.array_size > 0) {
int size = get_datatype_size(uniform.type) * uniform.array_size;
int m = (16 * uniform.array_size);
if ((size % m) != 0U) {
size += m - (size % m);
}
uniform_buffer_size += size;
} else {
uniform_buffer_size += get_datatype_size(uniform.type);
}
if (uniform_buffer_exceeded_line == -1 && uniform_buffer_size > max_uniform_buffer_size) {
uniform_buffer_exceeded_line = tk_line;
}
}
#endif // DEBUG_ENABLED
}
}
if (uniform.array_size > 0) {
if (uniform_scope == ShaderNode::Uniform::SCOPE_GLOBAL) {
_set_error(vformat(RTR("The '%s' qualifier is not supported for uniform arrays."), "SCOPE_GLOBAL"));
return ERR_PARSE_ERROR;
}
if (uniform_scope == ShaderNode::Uniform::SCOPE_INSTANCE) {
_set_error(vformat(RTR("The '%s' qualifier is not supported for uniform arrays."), "SCOPE_INSTANCE"));
return ERR_PARSE_ERROR;
}
}
int custom_instance_index = -1;
if (tk.type == TK_COLON) {
completion_type = COMPLETION_HINT;
completion_base = type;
completion_base_array = uniform.array_size > 0;
//hint
do {
tk = _get_token();
completion_line = tk.line;
if (!is_token_hint(tk.type)) {
_set_error(RTR("Expected valid type hint after ':'."));
return ERR_PARSE_ERROR;
}
if (uniform.array_size > 0) {
static Vector<int> supported_hints = {
TK_HINT_SOURCE_COLOR, TK_REPEAT_DISABLE, TK_REPEAT_ENABLE,
TK_FILTER_LINEAR, TK_FILTER_LINEAR_MIPMAP, TK_FILTER_LINEAR_MIPMAP_ANISOTROPIC,
TK_FILTER_NEAREST, TK_FILTER_NEAREST_MIPMAP, TK_FILTER_NEAREST_MIPMAP_ANISOTROPIC
};
if (!supported_hints.has(tk.type)) {
_set_error(RTR("This hint is not supported for uniform arrays."));
return ERR_PARSE_ERROR;
}
}
ShaderNode::Uniform::Hint new_hint = ShaderNode::Uniform::HINT_NONE;
TextureFilter new_filter = FILTER_DEFAULT;
TextureRepeat new_repeat = REPEAT_DEFAULT;
switch (tk.type) {
case TK_HINT_SOURCE_COLOR: {
if (type != TYPE_VEC3 && type != TYPE_VEC4 && !is_sampler_type(type)) {
_set_error(vformat(RTR("Source color hint is for '%s', '%s' or sampler types only."), "vec3", "vec4"));
return ERR_PARSE_ERROR;
}
if (is_sampler_type(type)) {
if (uniform.use_color) {
_set_error(vformat(RTR("Duplicated hint: '%s'."), "source_color"));
return ERR_PARSE_ERROR;
}
uniform.use_color = true;
} else {
new_hint = ShaderNode::Uniform::HINT_SOURCE_COLOR;
}
} break;
case TK_HINT_DEFAULT_BLACK_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_DEFAULT_BLACK;
} break;
case TK_HINT_DEFAULT_WHITE_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_DEFAULT_WHITE;
} break;
case TK_HINT_DEFAULT_TRANSPARENT_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_DEFAULT_TRANSPARENT;
} break;
case TK_HINT_NORMAL_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_NORMAL;
} break;
case TK_HINT_ROUGHNESS_NORMAL_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_NORMAL;
} break;
case TK_HINT_ROUGHNESS_R: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_R;
} break;
case TK_HINT_ROUGHNESS_G: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_G;
} break;
case TK_HINT_ROUGHNESS_B: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_B;
} break;
case TK_HINT_ROUGHNESS_A: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_A;
} break;
case TK_HINT_ROUGHNESS_GRAY: {
new_hint = ShaderNode::Uniform::HINT_ROUGHNESS_GRAY;
} break;
case TK_HINT_ANISOTROPY_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_ANISOTROPY;
} break;
case TK_HINT_RANGE: {
if (type != TYPE_FLOAT && type != TYPE_INT) {
_set_error(vformat(RTR("Range hint is for '%s' and '%s' only."), "float", "int"));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "hint_range");
return ERR_PARSE_ERROR;
}
tk = _get_token();
float sign = 1.0;
if (tk.type == TK_OP_SUB) {
sign = -1.0;
tk = _get_token();
}
if (tk.type != TK_FLOAT_CONSTANT && !tk.is_integer_constant()) {
_set_error(RTR("Expected an integer constant."));
return ERR_PARSE_ERROR;
}
uniform.hint_range[0] = tk.constant;
uniform.hint_range[0] *= sign;
tk = _get_token();
if (tk.type != TK_COMMA) {
_set_error(RTR("Expected ',' after integer constant."));
return ERR_PARSE_ERROR;
}
tk = _get_token();
sign = 1.0;
if (tk.type == TK_OP_SUB) {
sign = -1.0;
tk = _get_token();
}
if (tk.type != TK_FLOAT_CONSTANT && !tk.is_integer_constant()) {
_set_error(RTR("Expected an integer constant after ','."));
return ERR_PARSE_ERROR;
}
uniform.hint_range[1] = tk.constant;
uniform.hint_range[1] *= sign;
tk = _get_token();
if (tk.type == TK_COMMA) {
tk = _get_token();
if (tk.type != TK_FLOAT_CONSTANT && !tk.is_integer_constant()) {
_set_error(RTR("Expected an integer constant after ','."));
return ERR_PARSE_ERROR;
}
uniform.hint_range[2] = tk.constant;
tk = _get_token();
} else {
if (type == TYPE_INT) {
uniform.hint_range[2] = 1;
} else {
uniform.hint_range[2] = 0.001;
}
}
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return ERR_PARSE_ERROR;
}
new_hint = ShaderNode::Uniform::HINT_RANGE;
} break;
case TK_HINT_INSTANCE_INDEX: {
if (custom_instance_index != -1) {
_set_error(vformat(RTR("Can only specify '%s' once."), "instance_index"));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
_set_expected_after_error("(", "instance_index");
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type == TK_OP_SUB) {
_set_error(RTR("The instance index can't be negative."));
return ERR_PARSE_ERROR;
}
if (!tk.is_integer_constant()) {
_set_error(RTR("Expected an integer constant."));
return ERR_PARSE_ERROR;
}
custom_instance_index = tk.constant;
current_uniform_instance_index_defined = true;
if (custom_instance_index >= MAX_INSTANCE_UNIFORM_INDICES) {
_set_error(vformat(RTR("Allowed instance uniform indices must be within [0..%d] range."), MAX_INSTANCE_UNIFORM_INDICES - 1));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(")");
return ERR_PARSE_ERROR;
}
} break;
case TK_HINT_SCREEN_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_SCREEN_TEXTURE;
--texture_uniforms;
--texture_binding;
} break;
case TK_HINT_NORMAL_ROUGHNESS_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_NORMAL_ROUGHNESS_TEXTURE;
--texture_uniforms;
--texture_binding;
if (OS::get_singleton()->get_current_rendering_method() != "forward_plus") {
_set_error(RTR("'hint_normal_roughness_texture' is only available when using the Forward+ backend."));
return ERR_PARSE_ERROR;
}
if (String(shader_type_identifier) != "spatial") {
_set_error(vformat(RTR("'hint_normal_roughness_texture' is not supported in '%s' shaders."), shader_type_identifier));
return ERR_PARSE_ERROR;
}
} break;
case TK_HINT_DEPTH_TEXTURE: {
new_hint = ShaderNode::Uniform::HINT_DEPTH_TEXTURE;
--texture_uniforms;
--texture_binding;
if (String(shader_type_identifier) != "spatial") {
_set_error(vformat(RTR("'hint_depth_texture' is not supported in '%s' shaders."), shader_type_identifier));
return ERR_PARSE_ERROR;
}
} break;
case TK_FILTER_NEAREST: {
new_filter = FILTER_NEAREST;
} break;
case TK_FILTER_LINEAR: {
new_filter = FILTER_LINEAR;
} break;
case TK_FILTER_NEAREST_MIPMAP: {
new_filter = FILTER_NEAREST_MIPMAP;
} break;
case TK_FILTER_LINEAR_MIPMAP: {
new_filter = FILTER_LINEAR_MIPMAP;
} break;
case TK_FILTER_NEAREST_MIPMAP_ANISOTROPIC: {
new_filter = FILTER_NEAREST_MIPMAP_ANISOTROPIC;
} break;
case TK_FILTER_LINEAR_MIPMAP_ANISOTROPIC: {
new_filter = FILTER_LINEAR_MIPMAP_ANISOTROPIC;
} break;
case TK_REPEAT_DISABLE: {
new_repeat = REPEAT_DISABLE;
} break;
case TK_REPEAT_ENABLE: {
new_repeat = REPEAT_ENABLE;
} break;
default:
break;
}
if (((new_filter != FILTER_DEFAULT || new_repeat != REPEAT_DEFAULT) || (new_hint != ShaderNode::Uniform::HINT_NONE && new_hint != ShaderNode::Uniform::HINT_SOURCE_COLOR && new_hint != ShaderNode::Uniform::HINT_RANGE)) && !is_sampler_type(type)) {
_set_error(RTR("This hint is only for sampler types."));
return ERR_PARSE_ERROR;
}
if (new_hint != ShaderNode::Uniform::HINT_NONE) {
if (uniform.hint != ShaderNode::Uniform::HINT_NONE) {
if (uniform.hint == new_hint) {
_set_error(vformat(RTR("Duplicated hint: '%s'."), get_uniform_hint_name(new_hint)));
} else {
_set_error(vformat(RTR("Redefinition of hint: '%s'. The hint has already been set to '%s'."), get_uniform_hint_name(new_hint), get_uniform_hint_name(uniform.hint)));
}
return ERR_PARSE_ERROR;
} else {
uniform.hint = new_hint;
current_uniform_hint = new_hint;
}
}
if (new_filter != FILTER_DEFAULT) {
if (uniform.filter != FILTER_DEFAULT) {
if (uniform.filter == new_filter) {
_set_error(vformat(RTR("Duplicated filter mode: '%s'."), get_texture_filter_name(new_filter)));
} else {
_set_error(vformat(RTR("Redefinition of filter mode: '%s'. The filter mode has already been set to '%s'."), get_texture_filter_name(new_filter), get_texture_filter_name(uniform.filter)));
}
return ERR_PARSE_ERROR;
} else {
uniform.filter = new_filter;
current_uniform_filter = new_filter;
}
}
if (new_repeat != REPEAT_DEFAULT) {
if (uniform.repeat != REPEAT_DEFAULT) {
if (uniform.repeat == new_repeat) {
_set_error(vformat(RTR("Duplicated repeat mode: '%s'."), get_texture_repeat_name(new_repeat)));
} else {
_set_error(vformat(RTR("Redefinition of repeat mode: '%s'. The repeat mode has already been set to '%s'."), get_texture_repeat_name(new_repeat), get_texture_repeat_name(uniform.repeat)));
}
return ERR_PARSE_ERROR;
} else {
uniform.repeat = new_repeat;
current_uniform_repeat = new_repeat;
}
}
tk = _get_token();
} while (tk.type == TK_COMMA);
}
if (uniform_scope == ShaderNode::Uniform::SCOPE_INSTANCE) {
if (custom_instance_index >= 0) {
uniform.instance_index = custom_instance_index;
} else {
uniform.instance_index = instance_index++;
if (instance_index > MAX_INSTANCE_UNIFORM_INDICES) {
_set_error(vformat(RTR("Too many '%s' uniforms in shader, maximum supported is %d."), "instance", MAX_INSTANCE_UNIFORM_INDICES));
return ERR_PARSE_ERROR;
}
}
}
//reset scope for next uniform
if (tk.type == TK_OP_ASSIGN) {
if (uniform.array_size > 0) {
_set_error(RTR("Setting default values to uniform arrays is not supported."));
return ERR_PARSE_ERROR;
}
Node *expr = _parse_and_reduce_expression(nullptr, constants);
if (!expr) {
return ERR_PARSE_ERROR;
}
if (expr->type != Node::NODE_TYPE_CONSTANT) {
_set_error(RTR("Expected constant expression after '='."));
return ERR_PARSE_ERROR;
}
ConstantNode *cn = static_cast<ConstantNode *>(expr);
uniform.default_value.resize(cn->values.size());
if (!convert_constant(cn, uniform.type, uniform.default_value.ptrw())) {
_set_error(vformat(RTR("Can't convert constant to '%s'."), get_datatype_name(uniform.type)));
return ERR_PARSE_ERROR;
}
tk = _get_token();
}
shader->uniforms[name] = uniform;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_UNIFORM_FLAG)) {
used_uniforms.insert(name, Usage(tk_line));
}
#endif // DEBUG_ENABLED
//reset scope for next uniform
uniform_scope = ShaderNode::Uniform::SCOPE_LOCAL;
if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_GLOBAL_SPACE;
#endif // DEBUG_ENABLED
completion_type = COMPLETION_NONE;
current_uniform_hint = ShaderNode::Uniform::HINT_NONE;
current_uniform_filter = FILTER_DEFAULT;
current_uniform_repeat = REPEAT_DEFAULT;
current_uniform_instance_index_defined = false;
} else { // varying
ShaderNode::Varying varying;
varying.type = type;
varying.precision = precision;
varying.interpolation = interpolation;
varying.tkpos = prev_pos;
varying.array_size = array_size;
tk = _get_token();
if (tk.type != TK_SEMICOLON && tk.type != TK_BRACKET_OPEN) {
if (array_size == 0) {
_set_expected_error(";", "[");
} else {
_set_expected_error(";");
}
return ERR_PARSE_ERROR;
}
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &varying.array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
shader->varyings[name] = varying;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_VARYING_FLAG)) {
used_varyings.insert(name, Usage(tk_line));
}
#endif // DEBUG_ENABLED
}
} break;
case TK_UNIFORM_GROUP: {
tk = _get_token();
if (tk.type == TK_IDENTIFIER) {
current_uniform_group_name = tk.text;
tk = _get_token();
if (tk.type == TK_PERIOD) {
tk = _get_token();
if (tk.type == TK_IDENTIFIER) {
current_uniform_subgroup_name = tk.text;
tk = _get_token();
if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
} else {
_set_error(RTR("Expected an uniform subgroup identifier."));
return ERR_PARSE_ERROR;
}
} else if (tk.type != TK_SEMICOLON) {
_set_expected_error(";", ".");
return ERR_PARSE_ERROR;
}
} else {
if (tk.type != TK_SEMICOLON) {
if (current_uniform_group_name.is_empty()) {
_set_error(RTR("Expected an uniform group identifier."));
} else {
_set_error(RTR("Expected an uniform group identifier or `;`."));
}
return ERR_PARSE_ERROR;
} else if (current_uniform_group_name.is_empty()) {
_set_error(RTR("Group needs to be opened before."));
return ERR_PARSE_ERROR;
} else {
current_uniform_group_name = "";
current_uniform_subgroup_name = "";
}
}
} break;
case TK_SHADER_TYPE: {
_set_error(RTR("Shader type is already defined."));
return ERR_PARSE_ERROR;
} break;
default: {
//function or constant variable
bool is_constant = false;
bool is_struct = false;
StringName struct_name;
DataPrecision precision = PRECISION_DEFAULT;
DataType type;
StringName name;
int array_size = 0;
if (tk.type == TK_CONST) {
is_constant = true;
tk = _get_token();
}
if (is_token_precision(tk.type)) {
precision = get_token_precision(tk.type);
tk = _get_token();
}
if (shader->structs.has(tk.text)) {
is_struct = true;
struct_name = tk.text;
} else {
#ifdef DEBUG_ENABLED
if (_lookup_next(next)) {
if (next.type == TK_UNIFORM) {
keyword_completion_context = CF_UNIFORM_QUALIFIER;
}
}
#endif // DEBUG_ENABLED
if (!is_token_datatype(tk.type)) {
_set_error(RTR("Expected constant, function, uniform or varying."));
return ERR_PARSE_ERROR;
}
if (!is_token_variable_datatype(tk.type)) {
if (is_constant) {
_set_error(RTR("Invalid constant type (samplers are not allowed)."));
} else {
_set_error(RTR("Invalid function type (samplers are not allowed)."));
}
return ERR_PARSE_ERROR;
}
}
if (is_struct) {
type = TYPE_STRUCT;
} else {
type = get_token_datatype(tk.type);
}
if (precision != PRECISION_DEFAULT && _validate_precision(type, precision) != OK) {
return ERR_PARSE_ERROR;
}
prev_pos = _get_tkpos();
tk = _get_token();
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
bool unknown_size = false;
bool fixed_array_size = false;
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, !is_constant, nullptr, &array_size, &unknown_size);
if (error != OK) {
return error;
}
fixed_array_size = true;
prev_pos = _get_tkpos();
}
_set_tkpos(prev_pos);
_get_completable_identifier(nullptr, COMPLETION_MAIN_FUNCTION, name);
if (name == StringName()) {
if (is_constant) {
_set_error(RTR("Expected an identifier or '[' after type."));
} else {
_set_error(RTR("Expected a function name after type."));
}
return ERR_PARSE_ERROR;
}
if (shader->structs.has(name) || _find_identifier(nullptr, false, constants, name) || has_builtin(p_functions, name)) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
if (type == TYPE_VOID) {
_set_error(RTR("Expected '(' after function identifier."));
return ERR_PARSE_ERROR;
}
//variable
while (true) {
ShaderNode::Constant constant;
constant.name = name;
constant.type = is_struct ? TYPE_STRUCT : type;
constant.type_str = struct_name;
constant.precision = precision;
constant.initializer = nullptr;
constant.array_size = array_size;
is_const_decl = true;
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, false, nullptr, &constant.array_size, &unknown_size);
if (error != OK) {
return error;
}
tk = _get_token();
}
if (tk.type == TK_OP_ASSIGN) {
if (!is_constant) {
_set_error(vformat(RTR("Global non-constant variables are not supported. Expected '%s' keyword before constant definition."), "const"));
return ERR_PARSE_ERROR;
}
if (constant.array_size > 0 || unknown_size) {
bool full_def = false;
VariableDeclarationNode::Declaration decl;
decl.name = name;
decl.size = constant.array_size;
tk = _get_token();
if (tk.type != TK_CURLY_BRACKET_OPEN) {
if (unknown_size) {
_set_expected_error("{");
return ERR_PARSE_ERROR;
}
full_def = true;
DataPrecision precision2 = PRECISION_DEFAULT;
if (is_token_precision(tk.type)) {
precision2 = get_token_precision(tk.type);
tk = _get_token();
if (!is_token_nonvoid_datatype(tk.type)) {
_set_error(RTR("Expected data type after precision modifier."));
return ERR_PARSE_ERROR;
}
}
StringName struct_name2;
DataType type2;
if (shader->structs.has(tk.text)) {
type2 = TYPE_STRUCT;
struct_name2 = tk.text;
} else {
if (!is_token_variable_datatype(tk.type)) {
_set_error(RTR("Invalid data type for the array."));
return ERR_PARSE_ERROR;
}
type2 = get_token_datatype(tk.type);
}
int array_size2 = 0;
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
bool is_unknown_size = false;
Error error = _parse_array_size(nullptr, constants, false, nullptr, &array_size2, &is_unknown_size);
if (error != OK) {
return error;
}
if (is_unknown_size) {
array_size2 = constant.array_size;
}
tk = _get_token();
} else {
_set_expected_error("[");
return ERR_PARSE_ERROR;
}
if (constant.precision != precision2 || constant.type != type2 || struct_name != struct_name2 || constant.array_size != array_size2) {
String from;
if (type2 == TYPE_STRUCT) {
from += struct_name2;
} else {
if (precision2 != PRECISION_DEFAULT) {
from += get_precision_name(precision2);
from += " ";
}
from += get_datatype_name(type2);
}
from += "[";
from += itos(array_size2);
from += "]'";
String to;
if (type == TYPE_STRUCT) {
to += struct_name;
} else {
if (precision != PRECISION_DEFAULT) {
to += get_precision_name(precision);
to += " ";
}
to += get_datatype_name(type);
}
to += "[";
to += itos(constant.array_size);
to += "]'";
_set_error(vformat(RTR("Cannot convert from '%s' to '%s'."), from, to));
return ERR_PARSE_ERROR;
}
}
bool curly = tk.type == TK_CURLY_BRACKET_OPEN;
if (unknown_size) {
if (!curly) {
_set_expected_error("{");
return ERR_PARSE_ERROR;
}
} else {
if (full_def) {
if (curly) {
_set_expected_error("(");
return ERR_PARSE_ERROR;
}
}
}
if (tk.type == TK_PARENTHESIS_OPEN || curly) { // initialization
while (true) {
Node *n = _parse_and_reduce_expression(nullptr, constants);
if (!n) {
return ERR_PARSE_ERROR;
}
if (n->type == Node::NODE_TYPE_OPERATOR && static_cast<OperatorNode *>(n)->op == OP_CALL) {
_set_error(RTR("Expected constant expression."));
return ERR_PARSE_ERROR;
}
if (!_compare_datatypes(constant.type, struct_name, 0, n->get_datatype(), n->get_datatype_name(), 0)) {
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type == TK_COMMA) {
decl.initializer.push_back(n);
continue;
} else if (!curly && tk.type == TK_PARENTHESIS_CLOSE) {
decl.initializer.push_back(n);
break;
} else if (curly && tk.type == TK_CURLY_BRACKET_CLOSE) {
decl.initializer.push_back(n);
break;
} else {
if (curly) {
_set_expected_error("}", ",");
} else {
_set_expected_error(")", ",");
}
return ERR_PARSE_ERROR;
}
}
if (unknown_size) {
decl.size = decl.initializer.size();
constant.array_size = decl.initializer.size();
} else if (decl.initializer.size() != constant.array_size) {
_set_error(RTR("Array size mismatch."));
return ERR_PARSE_ERROR;
}
}
array_size = constant.array_size;
ConstantNode *expr = memnew(ConstantNode);
expr->datatype = constant.type;
expr->struct_name = constant.type_str;
expr->array_size = constant.array_size;
expr->array_declarations.push_back(decl);
constant.initializer = static_cast<ConstantNode *>(expr);
} else {
#ifdef DEBUG_ENABLED
if (constant.type == DataType::TYPE_BOOL) {
keyword_completion_context = CF_BOOLEAN;
}
#endif // DEBUG_ENABLED
//variable created with assignment! must parse an expression
Node *expr = _parse_and_reduce_expression(nullptr, constants);
if (!expr) {
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
if (constant.type == DataType::TYPE_BOOL) {
keyword_completion_context = CF_GLOBAL_SPACE;
}
#endif // DEBUG_ENABLED
if (expr->type == Node::NODE_TYPE_OPERATOR && static_cast<OperatorNode *>(expr)->op == OP_CALL) {
OperatorNode *op = static_cast<OperatorNode *>(expr);
for (int i = 1; i < op->arguments.size(); i++) {
if (!_check_node_constness(op->arguments[i])) {
_set_error(vformat(RTR("Expected constant expression for argument %d of function call after '='."), i - 1));
return ERR_PARSE_ERROR;
}
}
}
constant.initializer = static_cast<ConstantNode *>(expr);
if (!_compare_datatypes(type, struct_name, 0, expr->get_datatype(), expr->get_datatype_name(), expr->get_array_size())) {
return ERR_PARSE_ERROR;
}
}
tk = _get_token();
} else {
if (constant.array_size > 0 || unknown_size) {
_set_error(RTR("Expected array initialization."));
return ERR_PARSE_ERROR;
} else {
_set_error(RTR("Expected initialization of constant."));
return ERR_PARSE_ERROR;
}
}
shader->constants[name] = constant;
shader->vconstants.push_back(constant);
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_CONSTANT_FLAG)) {
used_constants.insert(name, Usage(tk_line));
}
#endif // DEBUG_ENABLED
if (tk.type == TK_COMMA) {
tk = _get_token();
if (tk.type != TK_IDENTIFIER) {
_set_error(RTR("Expected an identifier after type."));
return ERR_PARSE_ERROR;
}
name = tk.text;
if (_find_identifier(nullptr, false, constants, name)) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
if (has_builtin(p_functions, name)) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (!fixed_array_size) {
array_size = 0;
}
unknown_size = false;
} else if (tk.type == TK_SEMICOLON) {
is_const_decl = false;
break;
} else {
_set_expected_error(",", ";");
return ERR_PARSE_ERROR;
}
}
break;
}
FunctionInfo builtins;
if (p_functions.has(name)) {
builtins = p_functions[name];
}
if (p_functions.has("global")) { // Adds global variables: 'TIME'
for (const KeyValue<StringName, BuiltInInfo> &E : p_functions["global"].built_ins) {
builtins.built_ins.insert(E.key, E.value);
}
}
if (p_functions.has("constants")) { // Adds global constants: 'PI', 'TAU', 'E'
for (const KeyValue<StringName, BuiltInInfo> &E : p_functions["constants"].built_ins) {
builtins.built_ins.insert(E.key, E.value);
}
}
for (int i = 0; i < shader->functions.size(); i++) {
if (!shader->functions[i].callable && shader->functions[i].name == name) {
_set_redefinition_error(String(name));
return ERR_PARSE_ERROR;
}
}
ShaderNode::Function function;
function.callable = !p_functions.has(name);
function.name = name;
FunctionNode *func_node = alloc_node<FunctionNode>();
function.function = func_node;
shader->functions.push_back(function);
func_node->name = name;
func_node->return_type = type;
func_node->return_struct_name = struct_name;
func_node->return_precision = precision;
func_node->return_array_size = array_size;
if (p_functions.has(name)) {
func_node->can_discard = p_functions[name].can_discard;
} else {
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_FUNCTION_FLAG)) {
used_functions.insert(name, Usage(tk_line));
}
#endif // DEBUG_ENABLED
}
func_node->body = alloc_node<BlockNode>();
func_node->body->parent_function = func_node;
tk = _get_token();
while (true) {
if (tk.type == TK_PARENTHESIS_CLOSE) {
break;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_CONST_KEYWORD | CF_FUNC_DECL_PARAM_SPEC | CF_PRECISION_MODIFIER | CF_FUNC_DECL_PARAM_TYPE; // eg. const in mediump float
if (_lookup_next(next)) {
if (next.type == TK_CONST) {
keyword_completion_context = CF_UNSPECIFIED;
} else if (is_token_arg_qual(next.type)) {
keyword_completion_context = CF_CONST_KEYWORD;
} else if (is_token_precision(next.type)) {
keyword_completion_context = (CF_CONST_KEYWORD | CF_FUNC_DECL_PARAM_SPEC | CF_FUNC_DECL_PARAM_TYPE);
} else if (is_token_datatype(next.type)) {
keyword_completion_context = (CF_CONST_KEYWORD | CF_FUNC_DECL_PARAM_SPEC | CF_PRECISION_MODIFIER);
}
}
#endif // DEBUG_ENABLED
bool param_is_const = false;
if (tk.type == TK_CONST) {
param_is_const = true;
tk = _get_token();
#ifdef DEBUG_ENABLED
if (keyword_completion_context & CF_CONST_KEYWORD) {
keyword_completion_context ^= CF_CONST_KEYWORD;
}
if (_lookup_next(next)) {
if (is_token_arg_qual(next.type)) {
keyword_completion_context = CF_UNSPECIFIED;
} else if (is_token_precision(next.type)) {
keyword_completion_context = (CF_FUNC_DECL_PARAM_SPEC | CF_FUNC_DECL_PARAM_TYPE);
} else if (is_token_datatype(next.type)) {
keyword_completion_context = (CF_FUNC_DECL_PARAM_SPEC | CF_PRECISION_MODIFIER);
}
}
#endif // DEBUG_ENABLED
}
ArgumentQualifier param_qualifier = ARGUMENT_QUALIFIER_IN;
if (is_token_arg_qual(tk.type)) {
bool error = false;
switch (tk.type) {
case TK_ARG_IN: {
param_qualifier = ARGUMENT_QUALIFIER_IN;
} break;
case TK_ARG_OUT: {
if (param_is_const) {
_set_error(vformat(RTR("The '%s' qualifier cannot be used within a function parameter declared with '%s'."), "out", "const"));
error = true;
}
param_qualifier = ARGUMENT_QUALIFIER_OUT;
} break;
case TK_ARG_INOUT: {
if (param_is_const) {
_set_error(vformat(RTR("The '%s' qualifier cannot be used within a function parameter declared with '%s'."), "inout", "const"));
error = true;
}
param_qualifier = ARGUMENT_QUALIFIER_INOUT;
} break;
default:
error = true;
break;
}
tk = _get_token();
#ifdef DEBUG_ENABLED
if (keyword_completion_context & CF_CONST_KEYWORD) {
keyword_completion_context ^= CF_CONST_KEYWORD;
}
if (keyword_completion_context & CF_FUNC_DECL_PARAM_SPEC) {
keyword_completion_context ^= CF_FUNC_DECL_PARAM_SPEC;
}
if (_lookup_next(next)) {
if (is_token_precision(next.type)) {
keyword_completion_context = CF_FUNC_DECL_PARAM_TYPE;
} else if (is_token_datatype(next.type)) {
keyword_completion_context = CF_PRECISION_MODIFIER;
}
}
#endif // DEBUG_ENABLED
if (error) {
return ERR_PARSE_ERROR;
}
}
DataType param_type;
StringName param_name;
StringName param_struct_name;
DataPrecision param_precision = PRECISION_DEFAULT;
int arg_array_size = 0;
if (is_token_precision(tk.type)) {
param_precision = get_token_precision(tk.type);
tk = _get_token();
#ifdef DEBUG_ENABLED
if (keyword_completion_context & CF_CONST_KEYWORD) {
keyword_completion_context ^= CF_CONST_KEYWORD;
}
if (keyword_completion_context & CF_FUNC_DECL_PARAM_SPEC) {
keyword_completion_context ^= CF_FUNC_DECL_PARAM_SPEC;
}
if (keyword_completion_context & CF_PRECISION_MODIFIER) {
keyword_completion_context ^= CF_PRECISION_MODIFIER;
}
if (_lookup_next(next)) {
if (is_token_datatype(next.type)) {
keyword_completion_context = CF_UNSPECIFIED;
}
}
#endif // DEBUG_ENABLED
}
is_struct = false;
if (shader->structs.has(tk.text)) {
is_struct = true;
param_struct_name = tk.text;
#ifdef DEBUG_ENABLED
if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_STRUCT_FLAG) && used_structs.has(param_struct_name)) {
used_structs[param_struct_name].used = true;
}
#endif // DEBUG_ENABLED
}
if (!is_struct && !is_token_datatype(tk.type)) {
_set_error(RTR("Expected a valid data type for argument."));
return ERR_PARSE_ERROR;
}
if (param_qualifier == ARGUMENT_QUALIFIER_OUT || param_qualifier == ARGUMENT_QUALIFIER_INOUT) {
if (is_sampler_type(get_token_datatype(tk.type))) {
_set_error(RTR("Opaque types cannot be output parameters."));
return ERR_PARSE_ERROR;
}
}
if (is_struct) {
param_type = TYPE_STRUCT;
} else {
param_type = get_token_datatype(tk.type);
if (param_type == TYPE_VOID) {
_set_error(RTR("Void type not allowed as argument."));
return ERR_PARSE_ERROR;
}
}
if (param_precision != PRECISION_DEFAULT && _validate_precision(param_type, param_precision) != OK) {
return ERR_PARSE_ERROR;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_UNSPECIFIED;
#endif // DEBUG_ENABLED
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &arg_array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
if (tk.type != TK_IDENTIFIER) {
_set_error(RTR("Expected an identifier for argument name."));
return ERR_PARSE_ERROR;
}
param_name = tk.text;
ShaderLanguage::IdentifierType itype;
if (_find_identifier(func_node->body, false, builtins, param_name, (ShaderLanguage::DataType *)nullptr, &itype)) {
if (itype != IDENTIFIER_FUNCTION) {
_set_redefinition_error(String(param_name));
return ERR_PARSE_ERROR;
}
}
if (has_builtin(p_functions, param_name)) {
_set_redefinition_error(String(param_name));
return ERR_PARSE_ERROR;
}
FunctionNode::Argument arg;
arg.type = param_type;
arg.name = param_name;
arg.type_str = param_struct_name;
arg.precision = param_precision;
arg.qualifier = param_qualifier;
arg.tex_argument_check = false;
arg.tex_builtin_check = false;
arg.tex_argument_filter = FILTER_DEFAULT;
arg.tex_argument_repeat = REPEAT_DEFAULT;
arg.is_const = param_is_const;
tk = _get_token();
if (tk.type == TK_BRACKET_OPEN) {
Error error = _parse_array_size(nullptr, constants, true, nullptr, &arg_array_size, nullptr);
if (error != OK) {
return error;
}
tk = _get_token();
}
arg.array_size = arg_array_size;
func_node->arguments.push_back(arg);
if (tk.type == TK_COMMA) {
tk = _get_token();
//do none and go on
} else if (tk.type != TK_PARENTHESIS_CLOSE) {
_set_expected_error(",", ")");
return ERR_PARSE_ERROR;
}
}
if (p_functions.has(name)) {
//if one of the core functions, make sure they are of the correct form
if (func_node->arguments.size() > 0) {
_set_error(vformat(RTR("Function '%s' expects no arguments."), String(name)));
return ERR_PARSE_ERROR;
}
if (func_node->return_type != TYPE_VOID) {
_set_error(vformat(RTR("Function '%s' must be of '%s' return type."), String(name), "void"));
return ERR_PARSE_ERROR;
}
}
//all good let's parse inside the function!
tk = _get_token();
if (tk.type != TK_CURLY_BRACKET_OPEN) {
_set_error(RTR("Expected a '{' to begin function."));
return ERR_PARSE_ERROR;
}
current_function = name;
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_BLOCK;
#endif // DEBUG_ENABLED
Error err = _parse_block(func_node->body, builtins);
if (err) {
return err;
}
#ifdef DEBUG_ENABLED
keyword_completion_context = CF_GLOBAL_SPACE;
#endif // DEBUG_ENABLED
if (func_node->return_type != DataType::TYPE_VOID) {
BlockNode *block = func_node->body;
if (_find_last_flow_op_in_block(block, FlowOperation::FLOW_OP_RETURN) != OK) {
_set_error(vformat(RTR("Expected at least one '%s' statement in a non-void function."), "return"));
return ERR_PARSE_ERROR;
}
}
current_function = StringName();
}
}
tk = _get_token();
}
#ifdef DEBUG_ENABLED
if (check_device_limit_warnings && uniform_buffer_exceeded_line != -1) {
_add_warning(ShaderWarning::DEVICE_LIMIT_EXCEEDED, uniform_buffer_exceeded_line, RTR("uniform buffer"), { uniform_buffer_size, max_uniform_buffer_size });
}
#endif // DEBUG_ENABLED
return OK;
}
bool ShaderLanguage::has_builtin(const HashMap<StringName, ShaderLanguage::FunctionInfo> &p_functions, const StringName &p_name) {
for (const KeyValue<StringName, ShaderLanguage::FunctionInfo> &E : p_functions) {
if (E.value.built_ins.has(p_name)) {
return true;
}
}
return false;
}
Error ShaderLanguage::_find_last_flow_op_in_op(ControlFlowNode *p_flow, FlowOperation p_op) {
bool found = false;
for (int i = p_flow->blocks.size() - 1; i >= 0; i--) {
if (p_flow->blocks[i]->type == Node::NODE_TYPE_BLOCK) {
BlockNode *last_block = static_cast<BlockNode *>(p_flow->blocks[i]);
if (_find_last_flow_op_in_block(last_block, p_op) == OK) {
found = true;
break;
}
}
}
if (found) {
return OK;
}
return FAILED;
}
Error ShaderLanguage::_find_last_flow_op_in_block(BlockNode *p_block, FlowOperation p_op) {
bool found = false;
for (int i = p_block->statements.size() - 1; i >= 0; i--) {
if (p_block->statements[i]->type == Node::NODE_TYPE_CONTROL_FLOW) {
ControlFlowNode *flow = static_cast<ControlFlowNode *>(p_block->statements[i]);
if (flow->flow_op == p_op) {
found = true;
break;
} else {
if (_find_last_flow_op_in_op(flow, p_op) == OK) {
found = true;
break;
}
}
} else if (p_block->statements[i]->type == Node::NODE_TYPE_BLOCK) {
BlockNode *block = static_cast<BlockNode *>(p_block->statements[i]);
if (_find_last_flow_op_in_block(block, p_op) == OK) {
found = true;
break;
}
}
}
if (found) {
return OK;
}
return FAILED;
}
// skips over whitespace and /* */ and // comments
static int _get_first_ident_pos(const String &p_code) {
int idx = 0;
#define GETCHAR(m_idx) (((idx + m_idx) < p_code.length()) ? p_code[idx + m_idx] : char32_t(0))
while (true) {
if (GETCHAR(0) == '/' && GETCHAR(1) == '/') {
idx += 2;
while (true) {
if (GETCHAR(0) == 0) {
return 0;
}
if (GETCHAR(0) == '\n') {
idx++;
break; // loop
}
idx++;
}
} else if (GETCHAR(0) == '/' && GETCHAR(1) == '*') {
idx += 2;
while (true) {
if (GETCHAR(0) == 0) {
return 0;
}
if (GETCHAR(0) == '*' && GETCHAR(1) == '/') {
idx += 2;
break; // loop
}
idx++;
}
} else {
switch (GETCHAR(0)) {
case ' ':
case '\t':
case '\r':
case '\n': {
idx++;
} break; // switch
default:
return idx;
}
}
}
#undef GETCHAR
}
String ShaderLanguage::get_shader_type(const String &p_code) {
bool reading_type = false;
String cur_identifier;
for (int i = _get_first_ident_pos(p_code); i < p_code.length(); i++) {
if (p_code[i] == ';') {
break;
} else if (p_code[i] <= 32) {
if (!cur_identifier.is_empty()) {
if (!reading_type) {
if (cur_identifier != "shader_type") {
return String();
}
reading_type = true;
cur_identifier = String();
} else {
return cur_identifier;
}
}
} else {
cur_identifier += String::chr(p_code[i]);
}
}
if (reading_type) {
return cur_identifier;
}
return String();
}
bool ShaderLanguage::is_builtin_func_out_parameter(const String &p_name, int p_param) {
int i = 0;
while (builtin_func_out_args[i].name) {
if (p_name == builtin_func_out_args[i].name) {
for (int j = 0; j < BuiltinFuncOutArgs::MAX_ARGS; j++) {
int arg = builtin_func_out_args[i].arguments[j];
if (arg == p_param) {
return true;
}
if (arg < 0) {
return false;
}
}
}
i++;
}
return false;
}
#ifdef DEBUG_ENABLED
void ShaderLanguage::_check_warning_accums() {
for (const KeyValue<ShaderWarning::Code, HashMap<StringName, HashMap<StringName, Usage>> *> &E : warnings_check_map2) {
for (const KeyValue<StringName, HashMap<StringName, Usage>> &T : *E.value) {
for (const KeyValue<StringName, Usage> &U : T.value) {
if (!U.value.used) {
_add_warning(E.key, U.value.decl_line, U.key);
}
}
}
}
for (const KeyValue<ShaderWarning::Code, HashMap<StringName, Usage> *> &E : warnings_check_map) {
for (const KeyValue<StringName, Usage> &U : (*E.value)) {
if (!U.value.used) {
_add_warning(E.key, U.value.decl_line, U.key);
}
}
}
}
List<ShaderWarning>::Element *ShaderLanguage::get_warnings_ptr() {
return warnings.front();
}
void ShaderLanguage::enable_warning_checking(bool p_enabled) {
check_warnings = p_enabled;
}
bool ShaderLanguage::is_warning_checking_enabled() const {
return check_warnings;
}
void ShaderLanguage::set_warning_flags(uint32_t p_flags) {
warning_flags = p_flags;
}
uint32_t ShaderLanguage::get_warning_flags() const {
return warning_flags;
}
#endif // DEBUG_ENABLED
Error ShaderLanguage::compile(const String &p_code, const ShaderCompileInfo &p_info) {
clear();
is_shader_inc = p_info.is_include;
code = p_code;
global_shader_uniform_get_type_func = p_info.global_shader_uniform_type_func;
varying_function_names = p_info.varying_function_names;
nodes = nullptr;
shader = alloc_node<ShaderNode>();
Error err = _parse_shader(p_info.functions, p_info.render_modes, p_info.shader_types);
#ifdef DEBUG_ENABLED
if (check_warnings) {
_check_warning_accums();
}
#endif // DEBUG_ENABLED
if (err != OK) {
return err;
}
return OK;
}
Error ShaderLanguage::complete(const String &p_code, const ShaderCompileInfo &p_info, List<ScriptLanguage::CodeCompletionOption> *r_options, String &r_call_hint) {
clear();
is_shader_inc = p_info.is_include;
code = p_code;
varying_function_names = p_info.varying_function_names;
nodes = nullptr;
global_shader_uniform_get_type_func = p_info.global_shader_uniform_type_func;
shader = alloc_node<ShaderNode>();
_parse_shader(p_info.functions, p_info.render_modes, p_info.shader_types);
#ifdef DEBUG_ENABLED
// Adds context keywords.
if (keyword_completion_context != CF_UNSPECIFIED) {
int sz = sizeof(keyword_list) / sizeof(KeyWord);
for (int i = 0; i < sz; i++) {
if (keyword_list[i].flags == CF_UNSPECIFIED) {
break; // Ignore hint keywords (parsed below).
}
if (keyword_list[i].flags & keyword_completion_context) {
if (keyword_list[i].excluded_shader_types.has(shader_type_identifier)) {
continue;
}
if (!keyword_list[i].functions.is_empty() && !keyword_list[i].functions.has(current_function)) {
continue;
}
ScriptLanguage::CodeCompletionOption option(keyword_list[i].text, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
}
#endif // DEBUG_ENABLED
switch (completion_type) {
case COMPLETION_NONE: {
//do nothing
return OK;
} break;
case COMPLETION_SHADER_TYPE: {
for (const String &shader_type : p_info.shader_types) {
ScriptLanguage::CodeCompletionOption option(shader_type, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
return OK;
} break;
case COMPLETION_RENDER_MODE: {
if (is_shader_inc) {
for (int i = 0; i < RenderingServer::SHADER_MAX; i++) {
const Vector<ModeInfo> modes = ShaderTypes::get_singleton()->get_modes(RenderingServer::ShaderMode(i));
for (int j = 0; j < modes.size(); j++) {
const ModeInfo &info = modes[j];
if (!info.options.is_empty()) {
bool found = false;
for (int k = 0; k < info.options.size(); k++) {
if (shader->render_modes.has(String(info.name) + "_" + String(info.options[k]))) {
found = true;
}
}
if (!found) {
for (int k = 0; k < info.options.size(); k++) {
ScriptLanguage::CodeCompletionOption option(String(info.name) + "_" + String(info.options[k]), ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
} else {
const String name = String(info.name);
if (!shader->render_modes.has(name)) {
ScriptLanguage::CodeCompletionOption option(name, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
}
}
} else {
for (int i = 0; i < p_info.render_modes.size(); i++) {
const ModeInfo &info = p_info.render_modes[i];
if (!info.options.is_empty()) {
bool found = false;
for (int j = 0; j < info.options.size(); j++) {
if (shader->render_modes.has(String(info.name) + "_" + String(info.options[j]))) {
found = true;
}
}
if (!found) {
for (int j = 0; j < info.options.size(); j++) {
ScriptLanguage::CodeCompletionOption option(String(info.name) + "_" + String(info.options[j]), ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
} else {
const String name = String(info.name);
if (!shader->render_modes.has(name)) {
ScriptLanguage::CodeCompletionOption option(name, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
}
}
return OK;
} break;
case COMPLETION_STRUCT: {
if (shader->structs.has(completion_struct)) {
StructNode *node = shader->structs[completion_struct].shader_struct;
for (int i = 0; i < node->members.size(); i++) {
ScriptLanguage::CodeCompletionOption option(node->members[i]->name, ScriptLanguage::CODE_COMPLETION_KIND_MEMBER);
r_options->push_back(option);
}
}
return OK;
} break;
case COMPLETION_MAIN_FUNCTION: {
for (const KeyValue<StringName, FunctionInfo> &E : p_info.functions) {
if (!E.value.main_function) {
continue;
}
bool found = false;
for (int i = 0; i < shader->functions.size(); i++) {
if (shader->functions[i].name == E.key) {
found = true;
break;
}
}
if (found) {
continue;
}
ScriptLanguage::CodeCompletionOption option(E.key, ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
r_options->push_back(option);
}
return OK;
} break;
case COMPLETION_IDENTIFIER:
case COMPLETION_FUNCTION_CALL: {
bool comp_ident = completion_type == COMPLETION_IDENTIFIER;
HashMap<String, ScriptLanguage::CodeCompletionKind> matches;
StringName skip_function;
BlockNode *block = completion_block;
if (completion_class == TAG_GLOBAL) {
while (block) {
if (comp_ident) {
for (const KeyValue<StringName, BlockNode::Variable> &E : block->variables) {
if (E.value.line < completion_line) {
matches.insert(E.key, ScriptLanguage::CODE_COMPLETION_KIND_VARIABLE);
}
}
}
if (block->parent_function) {
if (comp_ident) {
for (int i = 0; i < block->parent_function->arguments.size(); i++) {
matches.insert(block->parent_function->arguments[i].name, ScriptLanguage::CODE_COMPLETION_KIND_VARIABLE);
}
}
skip_function = block->parent_function->name;
}
block = block->parent_block;
}
if (comp_ident) {
if (is_shader_inc) {
for (int i = 0; i < RenderingServer::SHADER_MAX; i++) {
const HashMap<StringName, ShaderLanguage::FunctionInfo> info = ShaderTypes::get_singleton()->get_functions(RenderingServer::ShaderMode(i));
if (info.has("global")) {
for (const KeyValue<StringName, BuiltInInfo> &E : info["global"].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
if (info.has("constants")) {
for (const KeyValue<StringName, BuiltInInfo> &E : info["constants"].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
if (skip_function != StringName() && info.has(skip_function)) {
for (const KeyValue<StringName, BuiltInInfo> &E : info[skip_function].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
}
} else {
if (p_info.functions.has("global")) {
for (const KeyValue<StringName, BuiltInInfo> &E : p_info.functions["global"].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
if (p_info.functions.has("constants")) {
for (const KeyValue<StringName, BuiltInInfo> &E : p_info.functions["constants"].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
if (skip_function != StringName() && p_info.functions.has(skip_function)) {
for (const KeyValue<StringName, BuiltInInfo> &E : p_info.functions[skip_function].built_ins) {
ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_MEMBER;
if (E.value.constant) {
kind = ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT;
}
matches.insert(E.key, kind);
}
}
}
for (const KeyValue<StringName, ShaderNode::Constant> &E : shader->constants) {
matches.insert(E.key, ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT);
}
for (const KeyValue<StringName, ShaderNode::Varying> &E : shader->varyings) {
matches.insert(E.key, ScriptLanguage::CODE_COMPLETION_KIND_VARIABLE);
}
for (const KeyValue<StringName, ShaderNode::Uniform> &E : shader->uniforms) {
matches.insert(E.key, ScriptLanguage::CODE_COMPLETION_KIND_MEMBER);
}
}
for (int i = 0; i < shader->functions.size(); i++) {
if (!shader->functions[i].callable || shader->functions[i].name == skip_function) {
continue;
}
matches.insert(String(shader->functions[i].name), ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
}
int idx = 0;
bool low_end = RenderingServer::get_singleton()->is_low_end();
if (stages && stages->has(skip_function)) {
for (const KeyValue<StringName, StageFunctionInfo> &E : (*stages)[skip_function].stage_functions) {
matches.insert(String(E.key), ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
}
}
while (builtin_func_defs[idx].name) {
if (low_end && builtin_func_defs[idx].high_end) {
idx++;
continue;
}
matches.insert(String(builtin_func_defs[idx].name), ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
idx++;
}
} else { // sub-class
int idx = 0;
bool low_end = RenderingServer::get_singleton()->is_low_end();
while (builtin_func_defs[idx].name) {
if (low_end && builtin_func_defs[idx].high_end) {
idx++;
continue;
}
if (builtin_func_defs[idx].tag == completion_class) {
matches.insert(String(builtin_func_defs[idx].name), ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
}
idx++;
}
}
for (const KeyValue<String, ScriptLanguage::CodeCompletionKind> &E : matches) {
ScriptLanguage::CodeCompletionOption option(E.key, E.value);
if (E.value == ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION) {
option.insert_text += "(";
}
r_options->push_back(option);
}
return OK;
} break;
case COMPLETION_CALL_ARGUMENTS: {
StringName block_function;
BlockNode *block = completion_block;
while (block) {
if (block->parent_function) {
block_function = block->parent_function->name;
}
block = block->parent_block;
}
for (int i = 0; i < shader->functions.size(); i++) {
if (!shader->functions[i].callable) {
continue;
}
if (shader->functions[i].name == completion_function) {
String calltip;
calltip += get_datatype_name(shader->functions[i].function->return_type);
if (shader->functions[i].function->return_array_size > 0) {
calltip += "[";
calltip += itos(shader->functions[i].function->return_array_size);
calltip += "]";
}
calltip += " ";
calltip += shader->functions[i].name;
calltip += "(";
for (int j = 0; j < shader->functions[i].function->arguments.size(); j++) {
if (j > 0) {
calltip += ", ";
} else {
calltip += " ";
}
if (j == completion_argument) {
calltip += char32_t(0xFFFF);
}
if (shader->functions[i].function->arguments[j].is_const) {
calltip += "const ";
}
if (shader->functions[i].function->arguments[j].qualifier != ArgumentQualifier::ARGUMENT_QUALIFIER_IN) {
if (shader->functions[i].function->arguments[j].qualifier == ArgumentQualifier::ARGUMENT_QUALIFIER_OUT) {
calltip += "out ";
} else { // ArgumentQualifier::ARGUMENT_QUALIFIER_INOUT
calltip += "inout ";
}
}
calltip += get_datatype_name(shader->functions[i].function->arguments[j].type);
calltip += " ";
calltip += shader->functions[i].function->arguments[j].name;
if (shader->functions[i].function->arguments[j].array_size > 0) {
calltip += "[";
calltip += itos(shader->functions[i].function->arguments[j].array_size);
calltip += "]";
}
if (j == completion_argument) {
calltip += char32_t(0xFFFF);
}
}
if (shader->functions[i].function->arguments.size()) {
calltip += " ";
}
calltip += ")";
r_call_hint = calltip;
return OK;
}
}
int idx = 0;
String calltip;
bool low_end = RenderingServer::get_singleton()->is_low_end();
if (stages && stages->has(block_function)) {
for (const KeyValue<StringName, StageFunctionInfo> &E : (*stages)[block_function].stage_functions) {
if (completion_function == E.key) {
calltip += get_datatype_name(E.value.return_type);
calltip += " ";
calltip += E.key;
calltip += "(";
for (int i = 0; i < E.value.arguments.size(); i++) {
if (i > 0) {
calltip += ", ";
} else {
calltip += " ";
}
if (i == completion_argument) {
calltip += char32_t(0xFFFF);
}
calltip += get_datatype_name(E.value.arguments[i].type);
calltip += " ";
calltip += E.value.arguments[i].name;
if (i == completion_argument) {
calltip += char32_t(0xFFFF);
}
}
if (E.value.arguments.size()) {
calltip += " ";
}
calltip += ")";
r_call_hint = calltip;
return OK;
}
}
}
while (builtin_func_defs[idx].name) {
if (low_end && builtin_func_defs[idx].high_end) {
idx++;
continue;
}
int idx2 = 0;
HashSet<int> out_args;
while (builtin_func_out_args[idx2].name != nullptr) {
if (builtin_func_out_args[idx2].name == builtin_func_defs[idx].name) {
for (int i = 0; i < BuiltinFuncOutArgs::MAX_ARGS; i++) {
int arg = builtin_func_out_args[idx2].arguments[i];
if (arg == -1) {
break;
}
out_args.insert(arg);
}
break;
}
idx2++;
}
if (completion_function == builtin_func_defs[idx].name) {
if (builtin_func_defs[idx].tag != completion_class) {
idx++;
continue;
}
if (calltip.length()) {
calltip += "\n";
}
calltip += get_datatype_name(builtin_func_defs[idx].rettype);
calltip += " ";
calltip += builtin_func_defs[idx].name;
calltip += "(";
bool found_arg = false;
for (int i = 0; i < BuiltinFuncDef::MAX_ARGS - 1; i++) {
if (builtin_func_defs[idx].args[i] == TYPE_VOID) {
break;
}
if (i > 0) {
calltip += ", ";
} else {
calltip += " ";
}
if (i == completion_argument) {
calltip += char32_t(0xFFFF);
}
if (out_args.has(i)) {
calltip += "out ";
}
calltip += get_datatype_name(builtin_func_defs[idx].args[i]);
String arg_name = (String)builtin_func_defs[idx].args_names[i];
if (!arg_name.is_empty()) {
calltip += " ";
calltip += arg_name;
}
if (i == completion_argument) {
calltip += char32_t(0xFFFF);
}
found_arg = true;
}
if (found_arg) {
calltip += " ";
}
calltip += ")";
}
idx++;
}
r_call_hint = calltip;
return OK;
} break;
case COMPLETION_INDEX: {
const char colv[4] = { 'r', 'g', 'b', 'a' };
const char coordv[4] = { 'x', 'y', 'z', 'w' };
const char coordt[4] = { 's', 't', 'p', 'q' };
int limit = 0;
switch (completion_base) {
case TYPE_BVEC2:
case TYPE_IVEC2:
case TYPE_UVEC2:
case TYPE_VEC2: {
limit = 2;
} break;
case TYPE_BVEC3:
case TYPE_IVEC3:
case TYPE_UVEC3:
case TYPE_VEC3: {
limit = 3;
} break;
case TYPE_BVEC4:
case TYPE_IVEC4:
case TYPE_UVEC4:
case TYPE_VEC4: {
limit = 4;
} break;
default: {
}
}
for (int i = 0; i < limit; i++) {
r_options->push_back(ScriptLanguage::CodeCompletionOption(String::chr(colv[i]), ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT));
r_options->push_back(ScriptLanguage::CodeCompletionOption(String::chr(coordv[i]), ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT));
r_options->push_back(ScriptLanguage::CodeCompletionOption(String::chr(coordt[i]), ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT));
}
} break;
case COMPLETION_HINT: {
if (completion_base == DataType::TYPE_VEC3 || completion_base == DataType::TYPE_VEC4) {
if (current_uniform_hint == ShaderNode::Uniform::HINT_NONE) {
ScriptLanguage::CodeCompletionOption option("source_color", ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
} else if ((completion_base == DataType::TYPE_INT || completion_base == DataType::TYPE_FLOAT) && !completion_base_array) {
if (current_uniform_hint == ShaderNode::Uniform::HINT_NONE) {
ScriptLanguage::CodeCompletionOption option("hint_range", ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
if (completion_base == DataType::TYPE_INT) {
option.insert_text = "hint_range(0, 100, 1)";
} else {
option.insert_text = "hint_range(0.0, 1.0, 0.1)";
}
r_options->push_back(option);
}
} else if ((int(completion_base) > int(TYPE_MAT4) && int(completion_base) < int(TYPE_STRUCT))) {
Vector<String> options;
if (current_uniform_filter == FILTER_DEFAULT) {
options.push_back("filter_linear");
options.push_back("filter_linear_mipmap");
options.push_back("filter_linear_mipmap_anisotropic");
options.push_back("filter_nearest");
options.push_back("filter_nearest_mipmap");
options.push_back("filter_nearest_mipmap_anisotropic");
}
if (current_uniform_repeat == REPEAT_DEFAULT) {
options.push_back("repeat_enable");
options.push_back("repeat_disable");
}
if (completion_base_array) {
if (current_uniform_hint == ShaderNode::Uniform::HINT_NONE) {
options.push_back("source_color");
}
} else {
if (current_uniform_hint == ShaderNode::Uniform::HINT_NONE) {
options.push_back("hint_anisotropy");
options.push_back("hint_default_black");
options.push_back("hint_default_white");
options.push_back("hint_default_transparent");
options.push_back("hint_normal");
options.push_back("hint_roughness_a");
options.push_back("hint_roughness_b");
options.push_back("hint_roughness_g");
options.push_back("hint_roughness_gray");
options.push_back("hint_roughness_normal");
options.push_back("hint_roughness_r");
options.push_back("hint_screen_texture");
options.push_back("hint_normal_roughness_texture");
options.push_back("hint_depth_texture");
options.push_back("source_color");
}
}
for (int i = 0; i < options.size(); i++) {
ScriptLanguage::CodeCompletionOption option(options[i], ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
r_options->push_back(option);
}
}
if (!completion_base_array && !current_uniform_instance_index_defined) {
ScriptLanguage::CodeCompletionOption option("instance_index", ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
option.insert_text = "instance_index(0)";
r_options->push_back(option);
}
} break;
}
return ERR_PARSE_ERROR;
}
String ShaderLanguage::get_error_text() {
return error_str;
}
Vector<ShaderLanguage::FilePosition> ShaderLanguage::get_include_positions() {
return include_positions;
}
int ShaderLanguage::get_error_line() {
return error_line;
}
ShaderLanguage::ShaderNode *ShaderLanguage::get_shader() {
return shader;
}
ShaderLanguage::ShaderLanguage() {
nodes = nullptr;
completion_class = TAG_GLOBAL;
#ifdef DEBUG_ENABLED
warnings_check_map.insert(ShaderWarning::UNUSED_CONSTANT, &used_constants);
warnings_check_map.insert(ShaderWarning::UNUSED_FUNCTION, &used_functions);
warnings_check_map.insert(ShaderWarning::UNUSED_STRUCT, &used_structs);
warnings_check_map.insert(ShaderWarning::UNUSED_UNIFORM, &used_uniforms);
warnings_check_map.insert(ShaderWarning::UNUSED_VARYING, &used_varyings);
warnings_check_map2.insert(ShaderWarning::UNUSED_LOCAL_VARIABLE, &used_local_vars);
#endif // DEBUG_ENABLED
}
ShaderLanguage::~ShaderLanguage() {
clear();
}