Merge pull request #9703 from ameerj/txq-ms

shaders: Fix TXQ with MSAA textures

src/shader_recompiler/backend/glasm/emit_glasm_image.cpp

@@ -59,6 +59,13 @@ std::string Image(EmitContext& ctx, IR::TextureInstInfo info,
     }
 }
 
+bool IsTextureMsaa(EmitContext& ctx, const IR::TextureInstInfo& info) {
+    if (info.type == TextureType::Buffer) {
+        return false;
+    }
+    return ctx.info.texture_descriptors.at(info.descriptor_index).is_multisample;
+}
+
 std::string_view TextureType(IR::TextureInstInfo info, bool is_ms = false) {
     if (info.is_depth) {
         switch (info.type) {
@@ -535,7 +542,8 @@ void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value&
                               ScalarS32 lod, [[maybe_unused]] const IR::Value& skip_mips) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     const std::string texture{Texture(ctx, info, index)};
-    const std::string_view type{TextureType(info)};
+    const bool is_msaa{IsTextureMsaa(ctx, info)};
+    const std::string_view type{TextureType(info, is_msaa)};
     ctx.Add("TXQ {},{},{},{};", inst, lod, texture, type);
 }
 

src/shader_recompiler/backend/glsl/emit_glsl_image.cpp

@@ -25,6 +25,13 @@ std::string Image(EmitContext& ctx, const IR::TextureInstInfo& info, const IR::V
     return fmt::format("img{}{}", def.binding, index_offset);
 }
 
+bool IsTextureMsaa(EmitContext& ctx, const IR::TextureInstInfo& info) {
+    if (info.type == TextureType::Buffer) {
+        return false;
+    }
+    return ctx.info.texture_descriptors.at(info.descriptor_index).is_multisample;
+}
+
 std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info) {
     switch (info.type) {
     case TextureType::Color1D:
@@ -463,26 +470,33 @@ void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value&
                               std::string_view lod, const IR::Value& skip_mips_val) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     const auto texture{Texture(ctx, info, index)};
+    const bool is_msaa{IsTextureMsaa(ctx, info)};
     const bool skip_mips{skip_mips_val.U1()};
-    const auto mips{
+    const auto mips{skip_mips ? "0u" : fmt::format("uint(textureQueryLevels({}))", texture)};
-        [&] { return skip_mips ? "0u" : fmt::format("uint(textureQueryLevels({}))", texture); }};
+    if (is_msaa && !skip_mips) {
+        throw NotImplementedException("EmitImageQueryDimensions MSAA QueryLevels");
+    }
+    if (info.type == TextureType::Buffer && !skip_mips) {
+        throw NotImplementedException("EmitImageQueryDimensions TextureType::Buffer QueryLevels");
+    }
+    const bool uses_lod{!is_msaa && info.type != TextureType::Buffer};
+    const auto lod_str{uses_lod ? fmt::format(",int({})", lod) : ""};
     switch (info.type) {
     case TextureType::Color1D:
-        return ctx.AddU32x4("{}=uvec4(uint(textureSize({},int({}))),0u,0u,{});", inst, texture, lod,
+        return ctx.AddU32x4("{}=uvec4(uint(textureSize({}{})),0u,0u,{});", inst, texture, lod_str,
-                            mips());
+                            mips);
     case TextureType::ColorArray1D:
     case TextureType::Color2D:
     case TextureType::ColorCube:
     case TextureType::Color2DRect:
-        return ctx.AddU32x4("{}=uvec4(uvec2(textureSize({},int({}))),0u,{});", inst, texture, lod,
+        return ctx.AddU32x4("{}=uvec4(uvec2(textureSize({}{})),0u,{});", inst, texture, lod_str,
-                            mips());
+                            mips);
     case TextureType::ColorArray2D:
     case TextureType::Color3D:
     case TextureType::ColorArrayCube:
-        return ctx.AddU32x4("{}=uvec4(uvec3(textureSize({},int({}))),{});", inst, texture, lod,
+        return ctx.AddU32x4("{}=uvec4(uvec3(textureSize({}{})),{});", inst, texture, lod_str, mips);
-                            mips());
     case TextureType::Buffer:
-        throw NotImplementedException("EmitImageQueryDimensions Texture buffers");
+        return ctx.AddU32x4("{}=uvec4(uint(textureSize({})),0u,0u,{});", inst, texture, mips);
     }
     throw LogicError("Unspecified image type {}", info.type.Value());
 }

src/shader_recompiler/backend/spirv/emit_spirv_image.cpp

@@ -201,6 +201,13 @@ Id Image(EmitContext& ctx, const IR::Value& index, IR::TextureInstInfo info) {
     }
 }
 
+bool IsTextureMsaa(EmitContext& ctx, const IR::TextureInstInfo& info) {
+    if (info.type == TextureType::Buffer) {
+        return false;
+    }
+    return ctx.textures.at(info.descriptor_index).is_multisample;
+}
+
 Id Decorate(EmitContext& ctx, IR::Inst* inst, Id sample) {
     const auto info{inst->Flags<IR::TextureInstInfo>()};
     if (info.relaxed_precision != 0) {
@@ -452,24 +459,26 @@ Id EmitImageQueryDimensions(EmitContext& ctx, IR::Inst* inst, const IR::Value& i
     const Id zero{ctx.u32_zero_value};
     const bool skip_mips{skip_mips_val.U1()};
     const auto mips{[&] { return skip_mips ? zero : ctx.OpImageQueryLevels(ctx.U32[1], image); }};
+    const bool is_msaa{IsTextureMsaa(ctx, info)};
+    const bool uses_lod{!is_msaa && info.type != TextureType::Buffer};
+    const auto query{[&](Id type) {
+        return uses_lod ? ctx.OpImageQuerySizeLod(type, image, lod)
+                        : ctx.OpImageQuerySize(type, image);
+    }};
     switch (info.type) {
     case TextureType::Color1D:
-        return ctx.OpCompositeConstruct(ctx.U32[4], ctx.OpImageQuerySizeLod(ctx.U32[1], image, lod),
+        return ctx.OpCompositeConstruct(ctx.U32[4], query(ctx.U32[1]), zero, zero, mips());
-                                        zero, zero, mips());
     case TextureType::ColorArray1D:
     case TextureType::Color2D:
     case TextureType::ColorCube:
     case TextureType::Color2DRect:
-        return ctx.OpCompositeConstruct(ctx.U32[4], ctx.OpImageQuerySizeLod(ctx.U32[2], image, lod),
+        return ctx.OpCompositeConstruct(ctx.U32[4], query(ctx.U32[2]), zero, mips());
-                                        zero, mips());
     case TextureType::ColorArray2D:
     case TextureType::Color3D:
     case TextureType::ColorArrayCube:
-        return ctx.OpCompositeConstruct(ctx.U32[4], ctx.OpImageQuerySizeLod(ctx.U32[3], image, lod),
+        return ctx.OpCompositeConstruct(ctx.U32[4], query(ctx.U32[3]), mips());
-                                        mips());
     case TextureType::Buffer:
-        return ctx.OpCompositeConstruct(ctx.U32[4], ctx.OpImageQuerySize(ctx.U32[1], image), zero,
+        return ctx.OpCompositeConstruct(ctx.U32[4], query(ctx.U32[1]), zero, zero, mips());
-                                        zero, mips());
     }
     throw LogicError("Unspecified image type {}", info.type.Value());
 }

src/shader_recompiler/backend/spirv/spirv_emit_context.cpp

@@ -1288,6 +1288,7 @@ void EmitContext::DefineTextures(const Info& info, u32& binding, u32& scaling_in
             .pointer_type = pointer_type,
             .image_type = image_type,
             .count = desc.count,
+            .is_multisample = desc.is_multisample,
         });
         if (profile.supported_spirv >= 0x00010400) {
             interfaces.push_back(id);

src/shader_recompiler/backend/spirv/spirv_emit_context.h

@@ -35,6 +35,7 @@ struct TextureDefinition {
     Id pointer_type;
     Id image_type;
     u32 count;
+    bool is_multisample;
 };
 
 struct TextureBufferDefinition {