342 lines
10 KiB
C++
342 lines
10 KiB
C++
/*************************************************************************/
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/* test_shader_lang.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "test_shader_lang.h"
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#include "os/file_access.h"
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#include "os/main_loop.h"
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#include "os/os.h"
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#include "drivers/gles2/shader_compiler_gles2.h"
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#include "print_string.h"
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#include "scene/gui/control.h"
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#include "scene/gui/text_edit.h"
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#include "servers/visual/shader_language.h"
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typedef ShaderLanguage SL;
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namespace TestShaderLang {
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static String _mktab(int p_level) {
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String tb;
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for (int i = 0; i < p_level; i++) {
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tb += "\t";
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}
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return tb;
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}
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static String _typestr(SL::DataType p_type) {
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switch (p_type) {
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case SL::TYPE_VOID: return "void";
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case SL::TYPE_BOOL: return "bool";
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case SL::TYPE_FLOAT: return "float";
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case SL::TYPE_VEC2: return "vec2";
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case SL::TYPE_VEC3: return "vec3";
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case SL::TYPE_VEC4: return "vec4";
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case SL::TYPE_MAT3: return "mat3";
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case SL::TYPE_MAT4: return "mat4";
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case SL::TYPE_TEXTURE: return "texture";
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case SL::TYPE_CUBEMAP: return "cubemap";
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default: {}
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}
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return "";
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}
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static String _opstr(SL::Operator p_op) {
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switch (p_op) {
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case SL::OP_ASSIGN: return "=";
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case SL::OP_ADD: return "+";
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case SL::OP_SUB: return "-";
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case SL::OP_MUL: return "*";
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case SL::OP_DIV: return "/";
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case SL::OP_ASSIGN_ADD: return "+=";
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case SL::OP_ASSIGN_SUB: return "-=";
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case SL::OP_ASSIGN_MUL: return "*=";
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case SL::OP_ASSIGN_DIV: return "/=";
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case SL::OP_NEG: return "-";
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case SL::OP_NOT: return "!";
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case SL::OP_CMP_EQ: return "==";
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case SL::OP_CMP_NEQ: return "!=";
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case SL::OP_CMP_LEQ: return "<=";
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case SL::OP_CMP_GEQ: return ">=";
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case SL::OP_CMP_LESS: return "<";
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case SL::OP_CMP_GREATER: return ">";
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case SL::OP_CMP_OR: return "||";
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case SL::OP_CMP_AND: return "&&";
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default: return "";
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}
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return "";
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}
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static String dump_node_code(SL::Node *p_node, int p_level) {
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String code;
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switch (p_node->type) {
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case SL::Node::TYPE_PROGRAM: {
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SL::ProgramNode *pnode = (SL::ProgramNode *)p_node;
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for (Map<StringName, SL::Uniform>::Element *E = pnode->uniforms.front(); E; E = E->next()) {
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String ucode = "uniform ";
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ucode += _typestr(E->get().type) + "=" + String(E->get().default_value) + "\n";
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code += ucode;
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}
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for (int i = 0; i < pnode->functions.size(); i++) {
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SL::FunctionNode *fnode = pnode->functions[i].function;
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String header;
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header = _typestr(fnode->return_type) + " " + fnode->name + "(";
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for (int i = 0; i < fnode->arguments.size(); i++) {
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if (i > 0)
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header += ", ";
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header += _typestr(fnode->arguments[i].type) + " " + fnode->arguments[i].name;
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}
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header += ") {\n";
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code += header;
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code += dump_node_code(fnode->body, p_level + 1);
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code += "}\n";
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}
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code += dump_node_code(pnode->body, p_level);
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} break;
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case SL::Node::TYPE_FUNCTION: {
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} break;
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case SL::Node::TYPE_BLOCK: {
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SL::BlockNode *bnode = (SL::BlockNode *)p_node;
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//variables
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for (Map<StringName, SL::DataType>::Element *E = bnode->variables.front(); E; E = E->next()) {
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code += _mktab(p_level) + _typestr(E->value()) + " " + E->key() + ";\n";
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}
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for (int i = 0; i < bnode->statements.size(); i++) {
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code += _mktab(p_level) + dump_node_code(bnode->statements[i], p_level) + ";\n";
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}
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} break;
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case SL::Node::TYPE_VARIABLE: {
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SL::VariableNode *vnode = (SL::VariableNode *)p_node;
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code = vnode->name;
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} break;
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case SL::Node::TYPE_CONSTANT: {
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SL::ConstantNode *cnode = (SL::ConstantNode *)p_node;
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switch (cnode->datatype) {
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case SL::TYPE_BOOL: code = cnode->value.operator bool() ? "true" : "false"; break;
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case SL::TYPE_FLOAT: code = cnode->value; break;
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case SL::TYPE_VEC2: {
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Vector2 v = cnode->value;
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code = "vec2(" + rtos(v.x) + ", " + rtos(v.y) + ")";
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} break;
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case SL::TYPE_VEC3: {
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Vector3 v = cnode->value;
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code = "vec3(" + rtos(v.x) + ", " + rtos(v.y) + ", " + rtos(v.z) + ")";
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} break;
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case SL::TYPE_VEC4: {
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Plane v = cnode->value;
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code = "vec4(" + rtos(v.normal.x) + ", " + rtos(v.normal.y) + ", " + rtos(v.normal.z) + ", " + rtos(v.d) + ")";
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} break;
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case SL::TYPE_MAT3: {
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Matrix3 x = cnode->value;
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code = "mat3( vec3(" + rtos(x.get_axis(0).x) + ", " + rtos(x.get_axis(0).y) + ", " + rtos(x.get_axis(0).z) + "), vec3(" + rtos(x.get_axis(1).x) + ", " + rtos(x.get_axis(1).y) + ", " + rtos(x.get_axis(1).z) + "), vec3(" + rtos(x.get_axis(2).x) + ", " + rtos(x.get_axis(2).y) + ", " + rtos(x.get_axis(2).z) + "))";
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} break;
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case SL::TYPE_MAT4: {
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Transform x = cnode->value;
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code = "mat4( vec3(" + rtos(x.basis.get_axis(0).x) + ", " + rtos(x.basis.get_axis(0).y) + ", " + rtos(x.basis.get_axis(0).z) + "), vec3(" + rtos(x.basis.get_axis(1).x) + ", " + rtos(x.basis.get_axis(1).y) + ", " + rtos(x.basis.get_axis(1).z) + "), vec3(" + rtos(x.basis.get_axis(2).x) + ", " + rtos(x.basis.get_axis(2).y) + ", " + rtos(x.basis.get_axis(2).z) + "), vec3(" + rtos(x.origin.x) + ", " + rtos(x.origin.y) + ", " + rtos(x.origin.z) + "))";
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} break;
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default: code = "<error: " + Variant::get_type_name(cnode->value.get_type()) + " (" + itos(cnode->datatype) + ">";
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}
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} break;
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case SL::Node::TYPE_OPERATOR: {
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SL::OperatorNode *onode = (SL::OperatorNode *)p_node;
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switch (onode->op) {
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case SL::OP_ASSIGN:
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case SL::OP_ASSIGN_ADD:
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case SL::OP_ASSIGN_SUB:
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case SL::OP_ASSIGN_MUL:
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case SL::OP_ASSIGN_DIV:
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code = dump_node_code(onode->arguments[0], p_level) + _opstr(onode->op) + dump_node_code(onode->arguments[1], p_level);
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break;
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case SL::OP_ADD:
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case SL::OP_SUB:
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case SL::OP_MUL:
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case SL::OP_DIV:
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case SL::OP_CMP_EQ:
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case SL::OP_CMP_NEQ:
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case SL::OP_CMP_LEQ:
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case SL::OP_CMP_GEQ:
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case SL::OP_CMP_LESS:
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case SL::OP_CMP_GREATER:
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case SL::OP_CMP_OR:
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case SL::OP_CMP_AND:
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code = "(" + dump_node_code(onode->arguments[0], p_level) + _opstr(onode->op) + dump_node_code(onode->arguments[1], p_level) + ")";
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break;
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case SL::OP_NEG:
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case SL::OP_NOT:
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code = _opstr(onode->op) + dump_node_code(onode->arguments[0], p_level);
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break;
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case SL::OP_CALL:
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case SL::OP_CONSTRUCT:
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code = dump_node_code(onode->arguments[0], p_level) + "(";
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for (int i = 1; i < onode->arguments.size(); i++) {
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if (i > 1)
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code += ", ";
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code += dump_node_code(onode->arguments[i], p_level);
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}
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code += ")";
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break;
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default: {}
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}
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} break;
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case SL::Node::TYPE_CONTROL_FLOW: {
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SL::ControlFlowNode *cfnode = (SL::ControlFlowNode *)p_node;
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if (cfnode->flow_op == SL::FLOW_OP_IF) {
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code += "if (" + dump_node_code(cfnode->statements[0], p_level) + ") {\n";
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code += dump_node_code(cfnode->statements[1], p_level + 1);
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if (cfnode->statements.size() == 3) {
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code += "} else {\n";
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code += dump_node_code(cfnode->statements[2], p_level + 1);
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}
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code += "}\n";
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} else if (cfnode->flow_op == SL::FLOW_OP_RETURN) {
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if (cfnode->statements.size()) {
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code = "return " + dump_node_code(cfnode->statements[0], p_level);
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} else {
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code = "return";
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}
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}
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} break;
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case SL::Node::TYPE_MEMBER: {
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SL::MemberNode *mnode = (SL::MemberNode *)p_node;
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code = dump_node_code(mnode->owner, p_level) + "." + mnode->name;
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} break;
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}
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return code;
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}
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static Error recreate_code(void *p_str, SL::ProgramNode *p_program) {
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print_line("recr");
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String *str = (String *)p_str;
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*str = dump_node_code(p_program, 0);
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return OK;
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}
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MainLoop *test() {
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List<String> cmdlargs = OS::get_singleton()->get_cmdline_args();
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if (cmdlargs.empty()) {
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//try editor!
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return NULL;
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}
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String test = cmdlargs.back()->get();
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FileAccess *fa = FileAccess::open(test, FileAccess::READ);
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if (!fa) {
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ERR_FAIL_V(NULL);
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}
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String code;
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while (true) {
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CharType c = fa->get_8();
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if (fa->eof_reached())
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break;
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code += c;
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}
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int errline;
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int errcol;
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String error;
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print_line(SL::lex_debug(code));
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Error err = SL::compile(code, ShaderLanguage::SHADER_MATERIAL_FRAGMENT, NULL, NULL, &error, &errline, &errcol);
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if (err) {
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print_line("Error: " + itos(errline) + ":" + itos(errcol) + " " + error);
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return NULL;
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}
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print_line("Compile OK! - pretty printing");
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String rcode;
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err = SL::compile(code, ShaderLanguage::SHADER_MATERIAL_FRAGMENT, recreate_code, &rcode, &error, &errline, &errcol);
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if (!err) {
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print_line(rcode);
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}
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ShaderCompilerGLES2 comp;
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String codeline, globalsline;
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SL::VarInfo vi;
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vi.name = "mongs";
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vi.type = SL::TYPE_VEC3;
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ShaderCompilerGLES2::Flags fl;
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comp.compile(code, ShaderLanguage::SHADER_MATERIAL_FRAGMENT, codeline, globalsline, fl);
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return NULL;
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}
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}
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