godot/drivers/gles2/shader_compiler_gles2.h
lawnjelly e3491a3744
Add GLES2 2D renderer + Linux display manager
First implementation with Linux display manager.

- Add single-threaded mode for EditorResourcePreview (needed for OpenGL).

Co-authored-by: clayjohn <claynjohn@gmail.com>
Co-authored-by: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
2021-10-30 02:05:48 +02:00

113 lines
4.6 KiB
C++

/*************************************************************************/
/* shader_compiler_gles2.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#pragma once
#include "drivers/gles_common/rasterizer_platforms.h"
#ifdef GLES2_BACKEND_ENABLED
#include "drivers/gles_common/rasterizer_version.h"
#ifdef GODOT_3
#include "core/pair.h"
#include "core/string_builder.h"
#include "servers/visual/shader_language.h"
#include "servers/visual/shader_types.h"
#include "servers/visual_server.h"
#else
#include "core/string/string_builder.h"
#include "core/templates/pair.h"
#include "servers/rendering/shader_language.h"
#include "servers/rendering/shader_types.h"
#include "servers/rendering_server.h"
#endif
class ShaderCompilerGLES2 {
public:
struct IdentifierActions {
Map<StringName, Pair<int *, int>> render_mode_values;
Map<StringName, bool *> render_mode_flags;
Map<StringName, bool *> usage_flag_pointers;
Map<StringName, bool *> write_flag_pointers;
Map<StringName, ShaderLanguage::ShaderNode::Uniform> *uniforms;
};
struct GeneratedCode {
Vector<CharString> custom_defines;
Vector<StringName> uniforms;
Vector<StringName> texture_uniforms;
Vector<ShaderLanguage::ShaderNode::Uniform::Hint> texture_hints;
String vertex_global;
String vertex;
String fragment_global;
String fragment;
String light;
bool uses_fragment_time;
bool uses_vertex_time;
};
private:
ShaderLanguage parser;
struct DefaultIdentifierActions {
Map<StringName, String> renames;
Map<StringName, String> render_mode_defines;
Map<StringName, String> usage_defines;
};
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);
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, bool p_use_scope = true);
StringName current_func_name;
StringName vertex_name;
StringName fragment_name;
StringName light_name;
StringName time_name;
Set<StringName> used_name_defines;
Set<StringName> used_flag_pointers;
Set<StringName> used_rmode_defines;
Set<StringName> internal_functions;
DefaultIdentifierActions actions[GD_VS::SHADER_MAX];
// compatibility with godot 4
static ShaderLanguage::DataType _get_variable_type(const StringName &p_type);
public:
Error compile(GD_VS::ShaderMode p_mode, const String &p_code, IdentifierActions *p_actions, const String &p_path, GeneratedCode &r_gen_code);
ShaderCompilerGLES2();
};
#endif // GLES2_BACKEND_ENABLED