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GPU: Added a function to determine whether a shader stage is enabled or not.

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This commit is contained in:
Subv 2018-04-14 11:42:07 -05:00
parent 2b9a6b3281
commit ae58e46036
3 changed files with 27 additions and 3 deletions
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21
src/video_core/engines/maxwell_3d.cpp
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@ -301,5 +301,26 @@ u32 Maxwell3D::GetRegisterValue(u32 method) const {
return regs.reg_array[method]; return regs.reg_array[method];
} }
bool Maxwell3D::IsShaderStageEnabled(Regs::ShaderStage stage) const {
// The Vertex stage is always enabled.
if (stage == Regs::ShaderStage::Vertex)
return true;
switch (stage) {
case Regs::ShaderStage::TesselationControl:
return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::TesselationControl)]
.enable != 0;
case Regs::ShaderStage::TesselationEval:
return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::TesselationEval)]
.enable != 0;
case Regs::ShaderStage::Geometry:
return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::Geometry)].enable != 0;
case Regs::ShaderStage::Fragment:
return regs.shader_config[static_cast<size_t>(Regs::ShaderProgram::Fragment)].enable != 0;
}
UNREACHABLE();
}
} // namespace Engines } // namespace Engines
} // namespace Tegra } // namespace Tegra

3
src/video_core/engines/maxwell_3d.h
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@ -518,6 +518,9 @@ public:
/// Returns a list of enabled textures for the specified shader stage. /// Returns a list of enabled textures for the specified shader stage.
std::vector<Texture::FullTextureInfo> GetStageTextures(Regs::ShaderStage stage) const; std::vector<Texture::FullTextureInfo> GetStageTextures(Regs::ShaderStage stage) const;
/// Returns whether the specified shader stage is enabled or not.
bool IsShaderStageEnabled(Regs::ShaderStage stage) const;
private: private:
std::unordered_map<u32, std::vector<u32>> uploaded_macros; std::unordered_map<u32, std::vector<u32>> uploaded_macros;

6
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -191,8 +191,9 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset, size
auto& shader_config = gpu.regs.shader_config[index]; auto& shader_config = gpu.regs.shader_config[index];
const Maxwell::ShaderProgram program{static_cast<Maxwell::ShaderProgram>(index)}; const Maxwell::ShaderProgram program{static_cast<Maxwell::ShaderProgram>(index)};
// VertexB program is always enabled, despite bit setting const auto& stage = index - 1; // Stage indices are 0 - 5
const bool is_enabled{shader_config.enable || program == Maxwell::ShaderProgram::VertexB};
const bool is_enabled = gpu.IsShaderStageEnabled(static_cast<Maxwell::ShaderStage>(stage));
// Skip stages that are not enabled // Skip stages that are not enabled
if (!is_enabled) { if (!is_enabled) {
@ -200,7 +201,6 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset, size
} }
// Upload uniform data as one UBO per stage // Upload uniform data as one UBO per stage
const auto& stage = index - 1; // Stage indices are 0 - 5
const GLintptr ubo_offset = buffer_offset + static_cast<GLintptr>(ptr_pos); const GLintptr ubo_offset = buffer_offset + static_cast<GLintptr>(ptr_pos);
copy_buffer(uniform_buffers[stage].handle, ubo_offset, copy_buffer(uniform_buffers[stage].handle, ubo_offset,
sizeof(GLShader::MaxwellUniformData)); sizeof(GLShader::MaxwellUniformData));