glsl: Implement derivatives and YDirection

plus some other misc additions/changed

src/shader_recompiler/backend/glsl/emit_context.cpp

@@ -22,9 +22,10 @@ std::string_view InterpDecorator(Interpolation interp) {
 }
 } // namespace
 
-EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_)
-    : info{program.info}, profile{profile_} {
-    std::string header = "#version 450\n";
+EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_,
+                         const RuntimeInfo& runtime_info_)
+    : info{program.info}, profile{profile_}, runtime_info{runtime_info_} {
+    std::string header = "";
     SetupExtensions(header);
     stage = program.stage;
     switch (program.stage) {

src/shader_recompiler/backend/glsl/emit_context.h

@@ -16,6 +16,7 @@
 namespace Shader {
 struct Info;
 struct Profile;
+struct RuntimeInfo;
 } // namespace Shader
 
 namespace Shader::Backend {
@@ -31,7 +32,8 @@ namespace Shader::Backend::GLSL {
 
 class EmitContext {
 public:
-    explicit EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_);
+    explicit EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_,
+                         const RuntimeInfo& runtime_info_);
 
     template <Type type, typename... Args>
     void Add(const char* format_str, IR::Inst& inst, Args&&... args) {
@@ -121,6 +123,7 @@ public:
     RegAlloc reg_alloc;
     const Info& info;
     const Profile& profile;
+    const RuntimeInfo& runtime_info;
 
     Stage stage{};
     std::string_view stage_name = "invalid";
@@ -131,6 +134,8 @@ public:
     std::vector<u32> texture_bindings;
     std::vector<u32> image_bindings;
 
+    bool uses_y_direction{};
+
 private:
     void SetupExtensions(std::string& header);
     void DefineConstantBuffers();

src/shader_recompiler/backend/glsl/emit_glsl_composite.cpp

@@ -42,25 +42,19 @@ void EmitCompositeExtractU32x4(EmitContext& ctx, IR::Inst& inst, std::string_vie
     ctx.AddU32("{}={}.{};", inst, composite, SWIZZLE[index]);
 }
 
-void EmitCompositeInsertU32x2([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertU32x2(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertU32x3([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertU32x3(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertU32x4([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertU32x4(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
 void EmitCompositeConstructF16x2([[maybe_unused]] EmitContext& ctx,
@@ -153,25 +147,19 @@ void EmitCompositeExtractF32x4(EmitContext& ctx, IR::Inst& inst, std::string_vie
     ctx.AddF32("{}={}.{};", inst, composite, SWIZZLE[index]);
 }
 
-void EmitCompositeInsertF32x2([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF32x2(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertF32x3([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF32x3(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertF32x4([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF32x4(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
 void EmitCompositeConstructF64x2([[maybe_unused]] EmitContext& ctx) {
@@ -198,24 +186,18 @@ void EmitCompositeExtractF64x4([[maybe_unused]] EmitContext& ctx) {
     throw NotImplementedException("GLSL Instruction");
 }
 
-void EmitCompositeInsertF64x2([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF64x2(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertF64x3([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF64x3(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 
-void EmitCompositeInsertF64x4([[maybe_unused]] EmitContext& ctx,
-                              [[maybe_unused]] std::string_view composite,
-                              [[maybe_unused]] std::string_view object,
-                              [[maybe_unused]] u32 index) {
-    throw NotImplementedException("GLSL Instruction");
+void EmitCompositeInsertF64x4(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
 }
 } // namespace Shader::Backend::GLSL

src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp

@@ -124,16 +124,16 @@ void EmitFPLog2(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
 }
 
 void EmitFPRecip32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
-    ctx.AddF32("{}=1/{};", inst, value);
+    ctx.AddF32("{}=(1.0f)/{};", inst, value);
 }
 
 void EmitFPRecip64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
-    ctx.AddF64("{}=1/{};", inst, value);
+    ctx.AddF64("{}=1.0/{};", inst, value);
 }
 
 void EmitFPRecipSqrt32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
                        [[maybe_unused]] std::string_view value) {
-    ctx.AddF32("{}=1/sqrt({});", inst, value);
+    ctx.AddF32("{}=(1.0f)/sqrt({});", inst, value);
 }
 
 void EmitFPRecipSqrt64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,

src/shader_recompiler/backend/glsl/emit_glsl_image.cpp

@@ -37,6 +37,9 @@ void EmitImageSampleImplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
     if (!offset.IsEmpty()) {
         throw NotImplementedException("Offset");
     }
+    if (info.type != TextureType::Color2D) {
+        throw NotImplementedException("Texture type: {}", info.type.Value());
+    }
     const auto texture{Texture(ctx, info, index)};
     ctx.AddF32x4("{}=texture({},{});", inst, texture, coords);
 }

src/shader_recompiler/backend/glsl/emit_glsl_instructions.h

@@ -87,7 +87,7 @@ void EmitLocalInvocationId(EmitContext& ctx);
 void EmitInvocationId(EmitContext& ctx);
 void EmitSampleId(EmitContext& ctx);
 void EmitIsHelperInvocation(EmitContext& ctx);
-void EmitYDirection(EmitContext& ctx);
+void EmitYDirection(EmitContext& ctx, IR::Inst& inst);
 void EmitLoadLocal(EmitContext& ctx, std::string_view word_offset);
 void EmitWriteLocal(EmitContext& ctx, std::string_view word_offset, std::string_view value);
 void EmitUndefU1(EmitContext& ctx, IR::Inst& inst);
@@ -692,11 +692,11 @@ void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value,
 void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view value,
                           std::string_view index, std::string_view clamp,
                           std::string_view segmentation_mask);
-void EmitFSwizzleAdd(EmitContext& ctx, std::string_view op_a, std::string_view op_b,
+void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, std::string_view op_b,
                      std::string_view swizzle);
-void EmitDPdxFine(EmitContext& ctx, std::string_view op_a);
-void EmitDPdyFine(EmitContext& ctx, std::string_view op_a);
-void EmitDPdxCoarse(EmitContext& ctx, std::string_view op_a);
-void EmitDPdyCoarse(EmitContext& ctx, std::string_view op_a);
+void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a);
+void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a);
+void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a);
+void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a);
 
 } // namespace Shader::Backend::GLSL

src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp

@@ -224,8 +224,9 @@ void EmitIsHelperInvocation(EmitContext& ctx) {
     NotImplemented();
 }
 
-void EmitYDirection(EmitContext& ctx) {
-    NotImplemented();
+void EmitYDirection(EmitContext& ctx, IR::Inst& inst) {
+    ctx.uses_y_direction = true;
+    ctx.AddF32("{}=gl_FrontMaterial.ambient.a;", inst);
 }
 
 void EmitLoadLocal(EmitContext& ctx, std::string_view word_offset) {
@@ -650,25 +651,4 @@ void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view val
     NotImplemented();
 }
 
-void EmitFSwizzleAdd(EmitContext& ctx, std::string_view op_a, std::string_view op_b,
-                     std::string_view swizzle) {
-    NotImplemented();
-}
-
-void EmitDPdxFine(EmitContext& ctx, std::string_view op_a) {
-    NotImplemented();
-}
-
-void EmitDPdyFine(EmitContext& ctx, std::string_view op_a) {
-    NotImplemented();
-}
-
-void EmitDPdxCoarse(EmitContext& ctx, std::string_view op_a) {
-    NotImplemented();
-}
-
-void EmitDPdyCoarse(EmitContext& ctx, std::string_view op_a) {
-    NotImplemented();
-}
-
 } // namespace Shader::Backend::GLSL

src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp

@@ -0,0 +1,35 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string_view>
+
+#include "shader_recompiler/backend/glsl/emit_context.h"
+#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
+#include "shader_recompiler/frontend/ir/modifiers.h"
+#include "shader_recompiler/frontend/ir/value.h"
+#include "shader_recompiler/profile.h"
+
+namespace Shader::Backend::GLSL {
+void EmitFSwizzleAdd([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
+                     [[maybe_unused]] std::string_view op_a, [[maybe_unused]] std::string_view op_b,
+                     [[maybe_unused]] std::string_view swizzle) {
+    throw NotImplementedException("GLSL Instruction");
+}
+
+void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
+    ctx.AddF32("{}=dFdxFine({});", inst, op_a);
+}
+
+void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
+    ctx.AddF32("{}=dFdyFine({});", inst, op_a);
+}
+
+void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
+    ctx.AddF32("{}=dFdxCoarse({});", inst, op_a);
+}
+
+void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) {
+    ctx.AddF32("{}=dFdyCoarse({});", inst, op_a);
+}
+} // namespace Shader::Backend::GLSL