7784ce1854
We were only writing to the first render target before. Note that this is only the GLSL side of the implementation, supporting multiple render targets requires more changes in the OpenGL renderer. Dual Source blending is not implemented and stuff that uses it might not work at all.
106 lines
2.7 KiB
C++
106 lines
2.7 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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out += "bool exec_vertex();\n";
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if (setup.IsDualProgram()) {
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out += "bool exec_vertex_b();\n";
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}
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ProgramResult program =
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Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
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Maxwell3D::Regs::ShaderStage::Vertex, "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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uvec4 instance_id;
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};
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void main() {
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exec_vertex();
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)";
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if (setup.IsDualProgram()) {
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out += " exec_vertex_b();";
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}
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out += R"(
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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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// TODO(bunnei): This is likely a hack, position.w should be interpolated as 1.0
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// For now, this is here to bring order in lieu of proper emulation
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position.w = 1.0;
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}
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)";
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out += program.first;
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if (setup.IsDualProgram()) {
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ProgramResult program_b =
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Decompiler::DecompileProgram(setup.program.code_b, PROGRAM_OFFSET,
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Maxwell3D::Regs::ShaderStage::Vertex, "vertex_b")
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.get_value_or({});
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out += program_b.first;
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}
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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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out += "bool exec_fragment();\n";
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ProgramResult program =
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Decompiler::DecompileProgram(setup.program.code, PROGRAM_OFFSET,
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Maxwell3D::Regs::ShaderStage::Fragment, "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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layout(location = 0) out vec4 color[8];
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layout (std140) uniform fs_config {
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vec4 viewport_flip;
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uvec4 instance_id;
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};
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void main() {
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exec_fragment();
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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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