diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 61 |
1 files changed, 14 insertions, 47 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index c35b71b6b..ac78d344c 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -64,7 +64,7 @@ using TextureIR = std::variant<TextureOffset, TextureDerivates, TextureArgument> constexpr u32 MAX_CONSTBUFFER_SCALARS = static_cast<u32>(Maxwell::MaxConstBufferSize) / sizeof(u32); constexpr u32 MAX_CONSTBUFFER_ELEMENTS = MAX_CONSTBUFFER_SCALARS / sizeof(u32); -constexpr std::string_view CommonDeclarations = R"(#define ftoi floatBitsToInt +constexpr std::string_view COMMON_DECLARATIONS = R"(#define ftoi floatBitsToInt #define ftou floatBitsToUint #define itof intBitsToFloat #define utof uintBitsToFloat @@ -77,10 +77,6 @@ bvec2 HalfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {{ const float fswzadd_modifiers_a[] = float[4](-1.0f, 1.0f, -1.0f, 0.0f ); const float fswzadd_modifiers_b[] = float[4](-1.0f, -1.0f, 1.0f, -1.0f ); - -layout (std140, binding = {}) uniform vs_config {{ - float y_direction; -}}; )"; class ShaderWriter final { @@ -402,13 +398,6 @@ std::string FlowStackTopName(MetaStackClass stack) { return fmt::format("{}_flow_stack_top", GetFlowStackPrefix(stack)); } -bool UseUnifiedUniforms(const Device& device, const ShaderIR& ir, ShaderType stage) { - const u32 num_ubos = static_cast<u32>(ir.GetConstantBuffers().size()); - // We waste one UBO for emulation - const u32 num_available_ubos = device.GetMaxUniformBuffers(stage) - 1; - return num_ubos > num_available_ubos; -} - struct GenericVaryingDescription { std::string name; u8 first_element = 0; @@ -420,9 +409,8 @@ public: explicit GLSLDecompiler(const Device& device_, const ShaderIR& ir_, const Registry& registry_, ShaderType stage_, std::string_view identifier_, std::string_view suffix_) - : device{device_}, ir{ir_}, registry{registry_}, stage{stage_}, identifier{identifier_}, - suffix{suffix_}, header{ir.GetHeader()}, use_unified_uniforms{ - UseUnifiedUniforms(device_, ir_, stage_)} { + : device{device_}, ir{ir_}, registry{registry_}, stage{stage_}, + identifier{identifier_}, suffix{suffix_}, header{ir.GetHeader()} { if (stage != ShaderType::Compute) { transform_feedback = BuildTransformFeedback(registry.GetGraphicsInfo()); } @@ -516,7 +504,8 @@ private: if (!identifier.empty()) { code.AddLine("// {}", identifier); } - code.AddLine("#version 440 {}", ir.UsesLegacyVaryings() ? "compatibility" : "core"); + const bool use_compatibility = ir.UsesLegacyVaryings() || ir.UsesYNegate(); + code.AddLine("#version 440 {}", use_compatibility ? "compatibility" : "core"); code.AddLine("#extension GL_ARB_separate_shader_objects : enable"); if (device.HasShaderBallot()) { code.AddLine("#extension GL_ARB_shader_ballot : require"); @@ -542,7 +531,7 @@ private: code.AddNewLine(); - code.AddLine(CommonDeclarations, EmulationUniformBlockBinding); + code.AddLine(COMMON_DECLARATIONS); } void DeclareVertex() { @@ -865,17 +854,6 @@ private: } void DeclareConstantBuffers() { - if (use_unified_uniforms) { - const u32 binding = device.GetBaseBindings(stage).shader_storage_buffer + - static_cast<u32>(ir.GetGlobalMemory().size()); - code.AddLine("layout (std430, binding = {}) readonly buffer UnifiedUniforms {{", - binding); - code.AddLine(" uint cbufs[];"); - code.AddLine("}};"); - code.AddNewLine(); - return; - } - u32 binding = device.GetBaseBindings(stage).uniform_buffer; for (const auto& [index, info] : ir.GetConstantBuffers()) { const u32 num_elements = Common::DivCeil(info.GetSize(), 4 * sizeof(u32)); @@ -1081,29 +1059,17 @@ private: if (const auto cbuf = std::get_if<CbufNode>(&*node)) { const Node offset = cbuf->GetOffset(); - const u32 base_unified_offset = cbuf->GetIndex() * MAX_CONSTBUFFER_SCALARS; if (const auto immediate = std::get_if<ImmediateNode>(&*offset)) { // Direct access const u32 offset_imm = immediate->GetValue(); ASSERT_MSG(offset_imm % 4 == 0, "Unaligned cbuf direct access"); - if (use_unified_uniforms) { - return {fmt::format("cbufs[{}]", base_unified_offset + offset_imm / 4), - Type::Uint}; - } else { - return {fmt::format("{}[{}][{}]", GetConstBuffer(cbuf->GetIndex()), - offset_imm / (4 * 4), (offset_imm / 4) % 4), - Type::Uint}; - } - } - - // Indirect access - if (use_unified_uniforms) { - return {fmt::format("cbufs[{} + ({} >> 2)]", base_unified_offset, - Visit(offset).AsUint()), + return {fmt::format("{}[{}][{}]", GetConstBuffer(cbuf->GetIndex()), + offset_imm / (4 * 4), (offset_imm / 4) % 4), Type::Uint}; } + // Indirect access const std::string final_offset = code.GenerateTemporary(); code.AddLine("uint {} = {} >> 2;", final_offset, Visit(offset).AsUint()); @@ -2293,7 +2259,6 @@ private: } } } - if (header.ps.omap.depth) { // The depth output is always 2 registers after the last color output, and current_reg // already contains one past the last color register. @@ -2337,7 +2302,8 @@ private: } Expression YNegate(Operation operation) { - return {"y_direction", Type::Float}; + // Y_NEGATE is mapped to this uniform value + return {"gl_FrontMaterial.ambient.a", Type::Float}; } template <u32 element> @@ -2787,7 +2753,6 @@ private: const std::string_view identifier; const std::string_view suffix; const Header header; - const bool use_unified_uniforms; std::unordered_map<u8, VaryingTFB> transform_feedback; ShaderWriter code; @@ -3003,8 +2968,10 @@ ShaderEntries MakeEntries(const Device& device, const ShaderIR& ir, ShaderType s for (std::size_t i = 0; i < std::size(clip_distances); ++i) { entries.clip_distances = (clip_distances[i] ? 1U : 0U) << i; } + for (const auto& buffer : entries.const_buffers) { + entries.enabled_uniform_buffers |= 1U << buffer.GetIndex(); + } entries.shader_length = ir.GetLength(); - entries.use_unified_uniforms = UseUnifiedUniforms(device, ir, stage); return entries; } |