dbfc39d214
All tested games that use a single texture show no regression. Only Texture2D textures are supported right now, each shader gets its own "tex_fs/vs/gs" sampler array to maintain independent textures between shader stages, the textures themselves are reused if possible.
74 lines
2 KiB
C++
74 lines
2 KiB
C++
// Copyright 2018 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/assert.h"
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/renderer_opengl/gl_shader_decompiler.h"
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#include "video_core/renderer_opengl/gl_shader_gen.h"
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namespace GLShader {
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using Tegra::Engines::Maxwell3D;
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static constexpr u32 PROGRAM_OFFSET{10};
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ProgramResult GenerateVertexShader(const ShaderSetup& setup, const MaxwellVSConfig& config) {
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std::string out = "#version 430 core\n";
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out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
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out += Decompiler::GetCommonDeclarations();
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ProgramResult program = Decompiler::DecompileProgram(setup.program_code, PROGRAM_OFFSET,
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Maxwell3D::Regs::ShaderStage::Vertex)
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.get_value_or({});
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out += R"(
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out gl_PerVertex {
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vec4 gl_Position;
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};
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out vec4 position;
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layout (std140) uniform vs_config {
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vec4 viewport_flip;
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};
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void main() {
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exec_shader();
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// Viewport can be flipped, which is unsupported by glViewport
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position.xy *= viewport_flip.xy;
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gl_Position = position;
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}
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)";
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out += program.first;
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return {out, program.second};
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}
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ProgramResult GenerateFragmentShader(const ShaderSetup& setup, const MaxwellFSConfig& config) {
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std::string out = "#version 430 core\n";
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out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
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out += Decompiler::GetCommonDeclarations();
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ProgramResult program = Decompiler::DecompileProgram(setup.program_code, PROGRAM_OFFSET,
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Maxwell3D::Regs::ShaderStage::Fragment)
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.get_value_or({});
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out += R"(
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in vec4 position;
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out vec4 color;
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layout (std140) uniform fs_config {
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vec4 viewport_flip;
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};
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void main() {
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exec_shader();
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}
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)";
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out += program.first;
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return {out, program.second};
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}
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} // namespace GLShader
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