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-rw-r--r--src/video_core/renderer_opengl/gl_shader_manager.cpp34
-rw-r--r--src/video_core/renderer_opengl/gl_shader_manager.h61
2 files changed, 61 insertions, 34 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_manager.cpp b/src/video_core/renderer_opengl/gl_shader_manager.cpp
index eaf3e03a0..05ab01dcb 100644
--- a/src/video_core/renderer_opengl/gl_shader_manager.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_manager.cpp
@@ -2,12 +2,44 @@
// 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() {
+ pipeline.Create();
+}
+
+ProgramManager::~ProgramManager() = default;
+
+void ProgramManager::ApplyTo(OpenGLState& state) {
+ UpdatePipeline();
+ state.draw.shader_program = 0;
+ state.draw.program_pipeline = pipeline.handle;
+}
+
+void ProgramManager::UpdatePipeline() {
+ // Avoid updating the pipeline when values have no changed
+ if (old_state == current_state) {
+ return;
+ }
+
+ // Workaround for AMD bug
+ 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, std::size_t shader_stage) {
const auto& regs = maxwell.regs;
const auto& state = maxwell.state;
@@ -16,7 +48,7 @@ void MaxwellUniformData::SetFromRegs(const Maxwell3D& maxwell, std::size_t shade
viewport_flip[0] = regs.viewport_transform[0].scale_x < 0.0 ? -1.0f : 1.0f;
viewport_flip[1] = regs.viewport_transform[0].scale_y < 0.0 ? -1.0f : 1.0f;
- u32 func = static_cast<u32>(regs.alpha_test_func);
+ auto func{static_cast<u32>(regs.alpha_test_func)};
// Normalize the gl variants of opCompare to be the same as the normal variants
const u32 op_gl_variant_base = static_cast<u32>(Maxwell3D::Regs::ComparisonOp::Never);
if (func >= op_gl_variant_base) {
diff --git a/src/video_core/renderer_opengl/gl_shader_manager.h b/src/video_core/renderer_opengl/gl_shader_manager.h
index 37dcfefdb..cec18a832 100644
--- a/src/video_core/renderer_opengl/gl_shader_manager.h
+++ b/src/video_core/renderer_opengl/gl_shader_manager.h
@@ -4,6 +4,8 @@
#pragma once
+#include <cstddef>
+
#include <glad/glad.h>
#include "video_core/renderer_opengl/gl_resource_manager.h"
@@ -38,55 +40,48 @@ static_assert(sizeof(MaxwellUniformData) < 16384,
class ProgramManager {
public:
- ProgramManager() {
- pipeline.Create();
- }
+ explicit ProgramManager();
+ ~ProgramManager();
+
+ void ApplyTo(OpenGLState& state);
void UseProgrammableVertexShader(GLuint program) {
- vs = program;
+ current_state.vertex_shader = program;
}
void UseProgrammableGeometryShader(GLuint program) {
- gs = program;
+ current_state.geometry_shader = program;
}
void UseProgrammableFragmentShader(GLuint program) {
- fs = program;
+ current_state.fragment_shader = program;
}
void UseTrivialGeometryShader() {
- gs = 0;
- }
-
- void ApplyTo(OpenGLState& state) {
- UpdatePipeline();
- state.draw.shader_program = 0;
- state.draw.program_pipeline = pipeline.handle;
+ current_state.geometry_shader = 0;
}
private:
- void UpdatePipeline() {
- // Avoid updating the pipeline when values have no changed
- if (old_vs == vs && old_fs == fs && old_gs == gs)
- return;
- // Workaround for AMD bug
- glUseProgramStages(pipeline.handle,
- GL_VERTEX_SHADER_BIT | GL_GEOMETRY_SHADER_BIT | GL_FRAGMENT_SHADER_BIT,
- 0);
-
- glUseProgramStages(pipeline.handle, GL_VERTEX_SHADER_BIT, vs);
- glUseProgramStages(pipeline.handle, GL_GEOMETRY_SHADER_BIT, gs);
- glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, fs);
-
- // Update the old values
- old_vs = vs;
- old_fs = fs;
- old_gs = gs;
- }
+ struct PipelineState {
+ bool operator==(const PipelineState& rhs) const {
+ return vertex_shader == rhs.vertex_shader && fragment_shader == rhs.fragment_shader &&
+ geometry_shader == rhs.geometry_shader;
+ }
+
+ bool operator!=(const PipelineState& rhs) const {
+ return !operator==(rhs);
+ }
+
+ GLuint vertex_shader{};
+ GLuint fragment_shader{};
+ GLuint geometry_shader{};
+ };
+
+ void UpdatePipeline();
OGLPipeline pipeline;
- GLuint vs{}, fs{}, gs{};
- GLuint old_vs{}, old_fs{}, old_gs{};
+ PipelineState current_state;
+ PipelineState old_state;
};
} // namespace OpenGL::GLShader