Merge pull request #6585 from ameerj/hades

Shader Decompiler Rewrite

1 files changed, 219 insertions, 0 deletions

diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_composite.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_composite.cpp
new file mode 100644
index 000000000..49a66e3ec
--- /dev/null
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_composite.cpp
@@ -0,0 +1,219 @@
+// 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/value.h"
+
+namespace Shader::Backend::GLSL {
+namespace {
+constexpr std::string_view SWIZZLE{"xyzw"};
+void CompositeInsert(EmitContext& ctx, std::string_view result, std::string_view composite,
+                     std::string_view object, u32 index) {
+    if (result == composite) {
+        // The result is aliased with the composite
+        ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
+    } else {
+        ctx.Add("{}={};{}.{}={};", result, composite, result, SWIZZLE[index], object);
+    }
+}
+} // Anonymous namespace
+
+void EmitCompositeConstructU32x2(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2) {
+    ctx.AddU32x2("{}=uvec2({},{});", inst, e1, e2);
+}
+
+void EmitCompositeConstructU32x3(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2, std::string_view e3) {
+    ctx.AddU32x3("{}=uvec3({},{},{});", inst, e1, e2, e3);
+}
+
+void EmitCompositeConstructU32x4(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2, std::string_view e3, std::string_view e4) {
+    ctx.AddU32x4("{}=uvec4({},{},{},{});", inst, e1, e2, e3, e4);
+}
+
+void EmitCompositeExtractU32x2(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddU32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeExtractU32x3(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddU32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeExtractU32x4(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddU32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeInsertU32x2(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32x2)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeInsertU32x3(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32x3)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeInsertU32x4(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32x4)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeConstructF16x2([[maybe_unused]] EmitContext& ctx,
+                                 [[maybe_unused]] std::string_view e1,
+                                 [[maybe_unused]] std::string_view e2) {
+    NotImplemented();
+}
+
+void EmitCompositeConstructF16x3([[maybe_unused]] EmitContext& ctx,
+                                 [[maybe_unused]] std::string_view e1,
+                                 [[maybe_unused]] std::string_view e2,
+                                 [[maybe_unused]] std::string_view e3) {
+    NotImplemented();
+}
+
+void EmitCompositeConstructF16x4([[maybe_unused]] EmitContext& ctx,
+                                 [[maybe_unused]] std::string_view e1,
+                                 [[maybe_unused]] std::string_view e2,
+                                 [[maybe_unused]] std::string_view e3,
+                                 [[maybe_unused]] std::string_view e4) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF16x2([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] std::string_view composite,
+                               [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF16x3([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] std::string_view composite,
+                               [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF16x4([[maybe_unused]] EmitContext& ctx,
+                               [[maybe_unused]] std::string_view composite,
+                               [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeInsertF16x2([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] std::string_view composite,
+                              [[maybe_unused]] std::string_view object,
+                              [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeInsertF16x3([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] std::string_view composite,
+                              [[maybe_unused]] std::string_view object,
+                              [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeInsertF16x4([[maybe_unused]] EmitContext& ctx,
+                              [[maybe_unused]] std::string_view composite,
+                              [[maybe_unused]] std::string_view object,
+                              [[maybe_unused]] u32 index) {
+    NotImplemented();
+}
+
+void EmitCompositeConstructF32x2(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2) {
+    ctx.AddF32x2("{}=vec2({},{});", inst, e1, e2);
+}
+
+void EmitCompositeConstructF32x3(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2, std::string_view e3) {
+    ctx.AddF32x3("{}=vec3({},{},{});", inst, e1, e2, e3);
+}
+
+void EmitCompositeConstructF32x4(EmitContext& ctx, IR::Inst& inst, std::string_view e1,
+                                 std::string_view e2, std::string_view e3, std::string_view e4) {
+    ctx.AddF32x4("{}=vec4({},{},{},{});", inst, e1, e2, e3, e4);
+}
+
+void EmitCompositeExtractF32x2(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddF32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeExtractF32x3(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddF32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeExtractF32x4(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                               u32 index) {
+    ctx.AddF32("{}={}.{};", inst, composite, SWIZZLE[index]);
+}
+
+void EmitCompositeInsertF32x2(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::F32x2)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeInsertF32x3(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::F32x3)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeInsertF32x4(EmitContext& ctx, IR::Inst& inst, std::string_view composite,
+                              std::string_view object, u32 index) {
+    const auto ret{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
+    CompositeInsert(ctx, ret, composite, object, index);
+}
+
+void EmitCompositeConstructF64x2([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeConstructF64x3([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeConstructF64x4([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF64x2([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF64x3([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeExtractF64x4([[maybe_unused]] EmitContext& ctx) {
+    NotImplemented();
+}
+
+void EmitCompositeInsertF64x2(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
+}
+
+void EmitCompositeInsertF64x3(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
+}
+
+void EmitCompositeInsertF64x4(EmitContext& ctx, std::string_view composite, std::string_view object,
+                              u32 index) {
+    ctx.Add("{}.{}={};", composite, SWIZZLE[index], object);
+}
+} // namespace Shader::Backend::GLSL