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Implemented Alpha Testing
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65df593951
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@ -643,8 +643,10 @@ public:
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u32 d3d_cull_mode;
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u32 d3d_cull_mode;
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ComparisonOp depth_test_func;
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ComparisonOp depth_test_func;
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float alpha_test_ref;
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ComparisonOp alpha_test_func;
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INSERT_PADDING_WORDS(0xB);
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INSERT_PADDING_WORDS(0x9);
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struct {
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struct {
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u32 separate_alpha;
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u32 separate_alpha;
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@ -323,6 +323,8 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
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current_texture_bindpoint = SetupTextures(static_cast<Maxwell::ShaderStage>(stage), shader,
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current_texture_bindpoint = SetupTextures(static_cast<Maxwell::ShaderStage>(stage), shader,
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primitive_mode, current_texture_bindpoint);
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primitive_mode, current_texture_bindpoint);
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SetupAlphaTesting(shader);
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// When VertexA is enabled, we have dual vertex shaders
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// When VertexA is enabled, we have dual vertex shaders
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if (program == Maxwell::ShaderProgram::VertexA) {
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if (program == Maxwell::ShaderProgram::VertexA) {
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// VertexB was combined with VertexA, so we skip the VertexB iteration
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// VertexB was combined with VertexA, so we skip the VertexB iteration
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@ -880,6 +882,15 @@ u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader,
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return current_unit + static_cast<u32>(entries.size());
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return current_unit + static_cast<u32>(entries.size());
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}
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}
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void RasterizerOpenGL::SetupAlphaTesting(Shader& shader) {
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const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
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glProgramUniform1i(shader->GetProgramHandle(), shader->GetAlphaTestingEnableLocation(),
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regs.alpha_test_enabled);
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glProgramUniform1f(shader->GetProgramHandle(), shader->GetAlphaTestingRefLocation(),
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regs.alpha_test_ref);
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}
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void RasterizerOpenGL::SyncViewport() {
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void RasterizerOpenGL::SyncViewport() {
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const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
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const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
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const MathUtil::Rectangle<s32> viewport_rect{regs.viewport_transform[0].GetRect()};
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const MathUtil::Rectangle<s32> viewport_rect{regs.viewport_transform[0].GetRect()};
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@ -132,6 +132,8 @@ private:
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u32 SetupTextures(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
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u32 SetupTextures(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
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GLenum primitive_mode, u32 current_unit);
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GLenum primitive_mode, u32 current_unit);
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void SetupAlphaTesting(Shader& shader);
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/// Syncs the viewport to match the guest state
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/// Syncs the viewport to match the guest state
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void SyncViewport();
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void SyncViewport();
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@ -134,6 +134,18 @@ GLuint CachedShader::LazyGeometryProgram(OGLProgram& target_program,
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return target_program.handle;
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return target_program.handle;
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};
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};
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GLint CachedShader::GetAlphaTestingEnableLocation() {
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return glGetUniformLocation(program.handle, "alpha_testing_enable");
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}
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GLint CachedShader::GetAlphaTestingFuncLocation() {
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return glGetUniformLocation(program.handle, "alpha_testing_func");
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}
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GLint CachedShader::GetAlphaTestingRefLocation() {
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return glGetUniformLocation(program.handle, "alpha_testing_ref");
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}
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Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
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Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
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const VAddr program_addr{GetShaderAddress(program)};
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const VAddr program_addr{GetShaderAddress(program)};
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@ -73,6 +73,11 @@ public:
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/// Gets the GL uniform location for the specified resource, caching as needed
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/// Gets the GL uniform location for the specified resource, caching as needed
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GLint GetUniformLocation(const GLShader::SamplerEntry& sampler);
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GLint GetUniformLocation(const GLShader::SamplerEntry& sampler);
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GLint GetAlphaTestingEnableLocation();
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GLint GetAlphaTestingFuncLocation();
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GLint GetAlphaTestingRefLocation();
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private:
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private:
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/// Generates a geometry shader or returns one that already exists.
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/// Generates a geometry shader or returns one that already exists.
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GLuint LazyGeometryProgram(OGLProgram& target_program, const std::string& glsl_topology,
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GLuint LazyGeometryProgram(OGLProgram& target_program, const std::string& glsl_topology,
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@ -643,6 +643,13 @@ private:
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';');
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';');
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}
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}
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declarations.AddNewLine();
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declarations.AddNewLine();
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if (stage == Maxwell3D::Regs::ShaderStage::Fragment) {
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declarations.AddLine("uniform bool alpha_testing_active;");
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declarations.AddLine("uniform float alpha_testing_ref;");
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declarations.AddLine("uniform uint alpha_testing_func;");
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}
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declarations.AddNewLine();
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}
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}
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/// Generates declarations used for geometry shaders.
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/// Generates declarations used for geometry shaders.
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@ -1264,9 +1271,26 @@ private:
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ASSERT_MSG(header.ps.omap.sample_mask == 0, "Samplemask write is unimplemented");
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ASSERT_MSG(header.ps.omap.sample_mask == 0, "Samplemask write is unimplemented");
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shader.AddLine("if (alpha_testing_active) {");
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++shader.scope;
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u32 current_reg = 3;
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for (u32 render_target = 0; render_target < Maxwell3D::Regs::NumRenderTargets;
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++render_target) {
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if (header.ps.IsColorComponentOutputEnabled(render_target, 0) ||
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header.ps.IsColorComponentOutputEnabled(render_target, 1) ||
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header.ps.IsColorComponentOutputEnabled(render_target, 2) ||
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header.ps.IsColorComponentOutputEnabled(render_target, 3)) {
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shader.AddLine(fmt::format("if ({} < alpha_testing_ref) discard;",
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regs.GetRegisterAsFloat(current_reg)));
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current_reg += 4;
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}
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}
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--shader.scope;
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shader.AddLine("}");
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// Write the color outputs using the data in the shader registers, disabled
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// Write the color outputs using the data in the shader registers, disabled
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// rendertargets/components are skipped in the register assignment.
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// rendertargets/components are skipped in the register assignment.
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u32 current_reg = 0;
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current_reg = 0;
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for (u32 render_target = 0; render_target < Maxwell3D::Regs::NumRenderTargets;
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for (u32 render_target = 0; render_target < Maxwell3D::Regs::NumRenderTargets;
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++render_target) {
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++render_target) {
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// TODO(Subv): Figure out how dual-source blending is configured in the Switch.
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// TODO(Subv): Figure out how dual-source blending is configured in the Switch.
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@ -3497,7 +3521,7 @@ private:
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// Declarations
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// Declarations
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std::set<std::string> declr_predicates;
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std::set<std::string> declr_predicates;
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}; // namespace Decompiler
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}; // namespace OpenGL::GLShader::Decompiler
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std::string GetCommonDeclarations() {
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std::string GetCommonDeclarations() {
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return fmt::format("#define MAX_CONSTBUFFER_ELEMENTS {}\n",
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return fmt::format("#define MAX_CONSTBUFFER_ELEMENTS {}\n",
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