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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common_types.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/renderer_opengl/gl_shader_manager.h"
namespace OpenGL::GLShader {
using Tegra::Engines::Maxwell3D;
ProgramManager::~ProgramManager() = default;
void ProgramManager::Create() {
pipeline.Create();
}
void ProgramManager::Update() {
// Avoid updating the pipeline when values have no changed
if (old_state == current_state) {
return;
}
// Workaround for AMD bug
static constexpr GLenum all_used_stages{GL_VERTEX_SHADER_BIT | GL_GEOMETRY_SHADER_BIT |
GL_FRAGMENT_SHADER_BIT};
glUseProgramStages(pipeline.handle, all_used_stages, 0);
glUseProgramStages(pipeline.handle, GL_VERTEX_SHADER_BIT, current_state.vertex_shader);
glUseProgramStages(pipeline.handle, GL_GEOMETRY_SHADER_BIT, current_state.geometry_shader);
glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, current_state.fragment_shader);
old_state = current_state;
}
void MaxwellUniformData::SetFromRegs(const Maxwell3D& maxwell) {
const auto& regs = maxwell.regs;
// Y_NEGATE controls what value S2R returns for the Y_DIRECTION system value.
y_direction = regs.screen_y_control.y_negate == 0 ? 1.0f : -1.0f;
}
} // namespace OpenGL::GLShader
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