b08ad9ef64
Adding the ability to access MODULATE in the shader breaks when final_modulate is baked into vertex colors (this is a technique used to batch together different colored items). This PR prevents baking vertex colors when MODULATE is detected in the shader. It also prevents baking when COLOR is read in canvas shaders, which could currently produce the wrong result in the shader if colors were baked. It does not prevent baking if COLOR is only written, which happens in most shaders, and will operate correctly without baking.
102 lines
4.2 KiB
C++
102 lines
4.2 KiB
C++
/*************************************************************************/
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/* shader_compiler_gles2.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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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#ifndef SHADERCOMPILERGLES2_H
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#define SHADERCOMPILERGLES2_H
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#include "core/pair.h"
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#include "core/string_builder.h"
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#include "servers/visual/shader_language.h"
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#include "servers/visual/shader_types.h"
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#include "servers/visual_server.h"
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class ShaderCompilerGLES2 {
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public:
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struct IdentifierActions {
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Map<StringName, Pair<int *, int> > render_mode_values;
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Map<StringName, bool *> render_mode_flags;
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Map<StringName, bool *> usage_flag_pointers;
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Map<StringName, bool *> read_flag_pointers;
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Map<StringName, bool *> write_flag_pointers;
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Map<StringName, ShaderLanguage::ShaderNode::Uniform> *uniforms;
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};
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struct GeneratedCode {
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Vector<CharString> custom_defines;
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Vector<StringName> uniforms;
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Vector<StringName> texture_uniforms;
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Vector<ShaderLanguage::ShaderNode::Uniform::Hint> texture_hints;
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String vertex_global;
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String vertex;
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String fragment_global;
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String fragment;
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String light;
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bool uses_fragment_time;
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bool uses_vertex_time;
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};
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private:
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ShaderLanguage parser;
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struct DefaultIdentifierActions {
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Map<StringName, String> renames;
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Map<StringName, String> render_mode_defines;
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Map<StringName, String> usage_defines;
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};
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void _dump_function_deps(ShaderLanguage::ShaderNode *p_node, const StringName &p_for_func, const Map<StringName, String> &p_func_code, StringBuilder &r_to_add, Set<StringName> &r_added);
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String _dump_node_code(ShaderLanguage::Node *p_node, int p_level, GeneratedCode &r_gen_code, IdentifierActions &p_actions, const DefaultIdentifierActions &p_default_actions, bool p_assigning);
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StringName current_func_name;
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StringName vertex_name;
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StringName fragment_name;
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StringName light_name;
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StringName time_name;
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Set<StringName> used_name_defines;
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Set<StringName> used_flag_pointers;
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Set<StringName> used_rmode_defines;
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Set<StringName> internal_functions;
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DefaultIdentifierActions actions[VS::SHADER_MAX];
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public:
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Error compile(VS::ShaderMode p_mode, const String &p_code, IdentifierActions *p_actions, const String &p_path, GeneratedCode &r_gen_code);
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ShaderCompilerGLES2();
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};
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#endif // SHADERCOMPILERGLES3_H
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