Move attribute related definitions to spirv anonymous namespace

2 files changed, 26 insertions, 5 deletions

diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp
index 2809f9281..f048174cb 100644
--- a/src/shader_recompiler/backend/spirv/emit_context.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_context.cpp
@@ -428,6 +428,8 @@ Id DescType(EmitContext& ctx, Id sampled_type, Id pointer_type, u32 count) {
         return pointer_type;
     }
 }
+
+constexpr size_t NUM_FIXEDFNCTEXTURE = 10;
 } // Anonymous namespace
 
 void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_view name) {
@@ -1272,7 +1274,7 @@ void EmitContext::DefineInputs(const IR::Program& program) {
         Decorate(id, spv::Decoration::Location, location);
         input_front_color = id;
     }
-    for (size_t index = 0; index < IR::NUM_FIXEDFNCTEXTURE; ++index) {
+    for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) {
         if (loads.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) {
             if (ununsed_location.empty()) {
                 throw RuntimeError("Unable to get an unused location");
@@ -1352,7 +1354,7 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
         Decorate(id, spv::Decoration::Location, location);
         output_front_color = id;
     }
-    for (size_t index = 0; index < IR::NUM_FIXEDFNCTEXTURE; ++index) {
+    for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) {
         if (info.stores.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) {
             if (ununsed_location.empty()) {
                 throw RuntimeError("Unable to get an unused location");
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
index c3ebd3e6a..dd0d01b2a 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
@@ -43,6 +43,25 @@ Id AttrPointer(EmitContext& ctx, Id pointer_type, Id vertex, Id base, Args&&...
     }
 }
 
+bool IsFixedFncTexture(IR::Attribute attribute) {
+    return attribute >= IR::Attribute::FixedFncTexture0S &&
+           attribute <= IR::Attribute::FixedFncTexture9Q;
+}
+
+u32 FixedFncTextureAttributeIndex(IR::Attribute attribute) {
+    if (!IsFixedFncTexture(attribute)) {
+        throw InvalidArgument("Attribute is not fixedfnctexture {}", attribute);
+    }
+    return (static_cast<u32>(attribute) - static_cast<u32>(IR::Attribute::FixedFncTexture0S)) / 4u;
+}
+
+u32 FixedFncTextureAttributeElement(IR::Attribute attribute) {
+    if (!IsFixedFncTexture(attribute)) {
+        throw InvalidArgument("Attribute is not fixedfnctexture {}", attribute);
+    }
+    return static_cast<u32>(attribute) % 4;
+}
+
 template <typename... Args>
 Id OutputAccessChain(EmitContext& ctx, Id result_type, Id base, Args&&... args) {
     if (ctx.stage == Stage::TessellationControl) {
@@ -75,8 +94,8 @@ std::optional<OutAttr> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
         }
     }
     if (attr >= IR::Attribute::FixedFncTexture0S && attr <= IR::Attribute::FixedFncTexture9Q) {
-        const u32 index{IR::FixedFncTextureAttributeIndex(attr)};
-        const u32 element{IR::FixedFncTextureAttributeElement(attr)};
+        const u32 index{FixedFncTextureAttributeIndex(attr)};
+        const u32 element{FixedFncTextureAttributeElement(attr)};
         const Id element_id{ctx.Const(element)};
         return OutputAccessChain(ctx, ctx.output_f32, ctx.output_fixed_fnc_textures[index],
                                  element_id);
@@ -323,7 +342,7 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
         return type->needs_cast ? ctx.OpBitcast(ctx.F32[1], value) : value;
     }
     if (attr >= IR::Attribute::FixedFncTexture0S && attr <= IR::Attribute::FixedFncTexture9Q) {
-        const u32 index{IR::FixedFncTextureAttributeIndex(attr)};
+        const u32 index{FixedFncTextureAttributeIndex(attr)};
         return ctx.OpLoad(ctx.F32[1],
                           AttrPointer(ctx, ctx.input_f32, vertex,
                                       ctx.input_fixed_fnc_textures[index], ctx.Const(element)));