patch object and mesh shaders

src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerEmitMSL.cpp

@@ -3847,7 +3847,7 @@ void LatteDecompiler_emitMSLShader(LatteDecompilerShaderContext* shaderContext,
 		{
 		    // Defined just-in-time
 			// Will also modify vid in case of an indexed draw
-		    src->add("VertexIn fetchInput(VERTEX_BUFFER_DEFINITIONS, thread uint& vid);" _CRLF);
+		    src->add("VertexIn fetchInput(thread uint& vid VERTEX_BUFFER_DEFINITIONS);" _CRLF);
 
 			functionType = "[[object, max_total_threads_per_threadgroup(VERTICES_PER_PRIMITIVE), max_total_threadgroups_per_mesh_grid(1)]]";
 			outputTypeName = "void";
@@ -3880,7 +3880,7 @@ void LatteDecompiler_emitMSLShader(LatteDecompilerShaderContext* shaderContext,
     		// TODO: don't hardcode the instance index
     		src->add("uint iid = 0;" _CRLF);
     		// Fetch the input
-    		src->add("VertexIn in = fetchInput(VERTEX_BUFFERS, vid);" _CRLF);
+    		src->add("VertexIn in = fetchInput(vid VERTEX_BUFFERS);" _CRLF);
     		// Output is defined as object payload
     		src->add("object_data VertexOut& out = objectPayload.vertexOut[tid];" _CRLF);
 		}

src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerEmitMSLHeader.hpp

@@ -156,6 +156,7 @@ namespace LatteDecompiler
 	static void _emitAttributes(LatteDecompilerShaderContext* decompilerContext)
 	{
 		auto src = decompilerContext->shaderSource;
+		std::string attributeNames;
 
 		if (decompilerContext->shader->shaderType == LatteConst::ShaderType::Vertex)
 		{
@@ -168,13 +169,16 @@ namespace LatteDecompiler
 					cemu_assert_debug(decompilerContext->output->resourceMappingVK.attributeMapping[i] >= 0);
 
 					src->addFmt("uint4 attrDataSem{}", i);
-					if (!decompilerContext->options->usesGeometryShader)
+					if (decompilerContext->options->usesGeometryShader)
+					    attributeNames += "#define ATTRIBUTE_NAME" + std::to_string((sint32)decompilerContext->output->resourceMappingVK.attributeMapping[i]) + " attrDataSem" + std::to_string(i) + "\n";
+					else
 					    src->addFmt(" [[attribute({})]]", (sint32)decompilerContext->output->resourceMappingVK.attributeMapping[i]);
 					src->add(";" _CRLF);
 				}
 			}
 			src->add("};" _CRLF _CRLF);
 		}
+		src->addFmt("{}", attributeNames);
 	}
 
 	static void _emitVSOutputs(LatteDecompilerShaderContext* shaderContext)
@@ -335,6 +339,21 @@ namespace LatteDecompiler
 
 	static void emitHeader(LatteDecompilerShaderContext* decompilerContext)
 	{
+	    auto src = decompilerContext->shaderSource;
+
+        if (decompilerContext->options->usesGeometryShader && (decompilerContext->shaderType == LatteConst::ShaderType::Vertex || decompilerContext->shaderType == LatteConst::ShaderType::Geometry))
+        {
+            src->add("#if PRIMITIVE_TYPE == point" _CRLF);
+           	src->add("#define VERTICES_PER_PRIMITIVE 1" _CRLF);
+            src->add("#if PRIMITIVE_TYPE == line" _CRLF);
+           	src->add("#define VERTICES_PER_PRIMITIVE 2" _CRLF);
+            src->add("#if PRIMITIVE_TYPE == triangle" _CRLF);
+           	src->add("#define VERTICES_PER_PRIMITIVE 3" _CRLF);
+            src->add("#else" _CRLF);
+            src->add("#error unsupported primitive type" _CRLF);
+           	src->add("#endif" _CRLF);
+        }
+
 		const bool dump_shaders_enabled = ActiveSettings::DumpShadersEnabled();
 		if(dump_shaders_enabled)
 			decompilerContext->shaderSource->add("// start of shader inputs/outputs, predetermined by Cemu. Do not touch" _CRLF);

src/Cafe/HW/Latte/Renderer/Metal/MetalPipelineCache.cpp

@@ -92,7 +92,7 @@ MTL::RenderPipelineState* MetalPipelineCache::GetPipelineState(const LatteFetchS
 
 		uint32 bufferIndex = bufferGroup.attributeBufferIndex;
 		uint32 bufferBaseRegisterIndex = mmSQ_VTX_ATTRIBUTE_BLOCK_START + bufferIndex * 7;
-		uint32 bufferStride = (LatteGPUState.contextNew.GetRawView()[bufferBaseRegisterIndex + 2] >> 11) & 0xFFFF;
+		uint32 bufferStride = (lcr.GetRawView()[bufferBaseRegisterIndex + 2] >> 11) & 0xFFFF;
 		bufferStride = Align(bufferStride, 4);
 
 		// HACK
@@ -117,6 +117,7 @@ MTL::RenderPipelineState* MetalPipelineCache::GetPipelineState(const LatteFetchS
 
 	auto mtlVertexShader = static_cast<RendererShaderMtl*>(vertexShader->shader);
 	auto mtlPixelShader = static_cast<RendererShaderMtl*>(pixelShader->shader);
+	mtlVertexShader->CompileVertexFunction();
 	mtlPixelShader->CompileFragmentFunction(activeFBO);
 
 	// Render pipeline state
@@ -127,9 +128,9 @@ MTL::RenderPipelineState* MetalPipelineCache::GetPipelineState(const LatteFetchS
 	desc->setVertexDescriptor(vertexDescriptor);
 
 	// Color attachments
-	const Latte::LATTE_CB_COLOR_CONTROL& colorControlReg = LatteGPUState.contextNew.CB_COLOR_CONTROL;
+	const Latte::LATTE_CB_COLOR_CONTROL& colorControlReg = lcr.CB_COLOR_CONTROL;
 	uint32 blendEnableMask = colorControlReg.get_BLEND_MASK();
-	uint32 renderTargetMask = LatteGPUState.contextNew.CB_TARGET_MASK.get_MASK();
+	uint32 renderTargetMask = lcr.CB_TARGET_MASK.get_MASK();
 	for (uint8 i = 0; i < 8; i++)
 	{
 	    const auto& colorBuffer = activeFBO->colorBuffer[i];
@@ -149,7 +150,7 @@ MTL::RenderPipelineState* MetalPipelineCache::GetPipelineState(const LatteFetchS
 		{
     		colorAttachment->setBlendingEnabled(true);
 
-    		const auto& blendControlReg = LatteGPUState.contextNew.CB_BLENDN_CONTROL[i];
+    		const auto& blendControlReg = lcr.CB_BLENDN_CONTROL[i];
 
     		auto rgbBlendOp = GetMtlBlendOp(blendControlReg.get_COLOR_COMB_FCN());
     		auto srcRgbBlendFactor = GetMtlBlendFactor(blendControlReg.get_COLOR_SRCBLEND());

src/Cafe/HW/Latte/Renderer/Metal/MetalRenderer.cpp

@@ -766,17 +766,11 @@ void MetalRenderer::draw_execute(uint32 baseVertex, uint32 baseInstance, uint32
 	LatteDecompilerShader* vertexShader = LatteSHRC_GetActiveVertexShader();
 	LatteDecompilerShader* geometryShader = LatteSHRC_GetActiveGeometryShader();
 	LatteDecompilerShader* pixelShader = LatteSHRC_GetActivePixelShader();
-	if (!vertexShader || !static_cast<RendererShaderMtl*>(vertexShader->shader)->GetFunction())
+	if (!vertexShader)
 	{
         debug_printf("no vertex function, skipping draw\n");
 	    return;
 	}
-	// TODO: remove this?
-	if (geometryShader)
-	{
-	    debug_printf("geometry shader aren't supported on Metal yet, skipping draw\n");
-		return;
-	}
 	const auto fetchShader = LatteSHRC_GetActiveFetchShader();
 
 	// Depth stencil state

src/Cafe/HW/Latte/Renderer/Metal/RendererShaderMtl.cpp

@@ -7,6 +7,8 @@
 
 #include "Cemu/Logging/CemuLogging.h"
 #include "Common/precompiled.h"
+#include "HW/Latte/Core/FetchShader.h"
+#include "HW/Latte/ISA/RegDefines.h"
 
 extern std::atomic_int g_compiled_shaders_total;
 extern std::atomic_int g_compiled_shaders_async;
@@ -14,15 +16,8 @@ extern std::atomic_int g_compiled_shaders_async;
 RendererShaderMtl::RendererShaderMtl(MetalRenderer* mtlRenderer, ShaderType type, uint64 baseHash, uint64 auxHash, bool isGameShader, bool isGfxPackShader, const std::string& mslCode)
 	: RendererShader(type, baseHash, auxHash, isGameShader, isGfxPackShader), m_mtlr{mtlRenderer}
 {
-    if (m_type == ShaderType::kFragment)
+    // TODO: don't compile just-in-time
-    {
-        // Fragment functions are compiled just-in-time
     m_mslCode = mslCode;
-    }
-    else
-    {
-        Compile(mslCode);
-    }
 
 	// Count shader compilation
 	g_compiled_shaders_total++;
@@ -34,13 +29,176 @@ RendererShaderMtl::~RendererShaderMtl()
         m_function->release();
 }
 
+void RendererShaderMtl::CompileObjectFunction(const LatteContextRegister& lcr, const LatteFetchShader* fetchShader, const LatteDecompilerShader* vertexShader, Renderer::INDEX_TYPE hostIndexType)
+{
+    cemu_assert_debug(m_type == ShaderType::kVertex);
+
+    std::string fullCode;
+
+    // Primitive type
+    const LattePrimitiveMode primitiveMode = static_cast<LattePrimitiveMode>(lcr.VGT_PRIMITIVE_TYPE.get_PRIMITIVE_MODE());
+    fullCode += "#define PRIMITIVE_TYPE ";
+    switch (primitiveMode)
+    {
+    case LattePrimitiveMode::POINTS:
+        fullCode += "point";
+        break;
+    case LattePrimitiveMode::LINES:
+        fullCode += "line";
+        break;
+    case LattePrimitiveMode::TRIANGLES:
+        fullCode += "triangle";
+        break;
+    default:
+        break;
+    }
+    fullCode += "\n";
+
+    // Vertex buffers
+    std::string vertexBufferDefinitions = "#define VERTEX_BUFFER_DEFINITIONS ";
+    std::string vertexBuffers = "#define VERTEX_BUFFERS ";
+    std::string inputFetchDefinition = "VertexIn fetchInput(thread uint& vid VERTEX_BUFFER_DEFINITIONS) {\n";
+    inputFetchDefinition += "VertexIn in;\n";
+    if (hostIndexType != Renderer::INDEX_TYPE::NONE)
+    {
+        vertexBufferDefinitions += ", device ";
+        switch (hostIndexType)
+        {
+        case Renderer::INDEX_TYPE::U16:
+            vertexBufferDefinitions += "ushort";
+            break;
+        case Renderer::INDEX_TYPE::U32:
+            vertexBufferDefinitions += "uint";
+            break;
+        default:
+            cemu_assert_suspicious();
+            break;
+        }
+        // TODO: don't hardcode the index
+        vertexBufferDefinitions += "* indexBuffer [[buffer(20)]]";
+        vertexBuffers += ", indexBuffer";
+        inputFetchDefinition += "vid = indexBuffer[vid]\n";
+    }
+    for (auto& bufferGroup : fetchShader->bufferGroups)
+	{
+        std::optional<LatteConst::VertexFetchType2> fetchType;
+
+       	for (sint32 j = 0; j < bufferGroup.attribCount; ++j)
+       	{
+      		auto& attr = bufferGroup.attrib[j];
+
+      		uint32 semanticId = vertexShader->resourceMapping.attributeMapping[attr.semanticId];
+      		if (semanticId == (uint32)-1)
+     			continue; // attribute not used?
+
+            std::string formatName;
+            switch (GetMtlVertexFormat(attr.format))
+            {
+            case MTL::VertexFormatUChar:
+                formatName = "uchar";
+                break;
+            case MTL::VertexFormatUChar2:
+                formatName = "uchar2";
+                break;
+            case MTL::VertexFormatUChar3:
+                formatName = "uchar3";
+                break;
+            case MTL::VertexFormatUChar4:
+                formatName = "uchar4";
+                break;
+            case MTL::VertexFormatUShort:
+                formatName = "ushort";
+                break;
+            case MTL::VertexFormatUShort2:
+                formatName = "ushort2";
+                break;
+            case MTL::VertexFormatUShort3:
+                formatName = "ushort3";
+                break;
+            case MTL::VertexFormatUShort4:
+                formatName = "ushort4";
+                break;
+            case MTL::VertexFormatUInt:
+                formatName = "uint";
+                break;
+            case MTL::VertexFormatUInt2:
+                formatName = "uint2";
+                break;
+            case MTL::VertexFormatUInt3:
+                formatName = "uint3";
+                break;
+            case MTL::VertexFormatUInt4:
+                formatName = "uint4";
+                break;
+            }
+
+            // Fetch the attribute
+            inputFetchDefinition += "in.ATTRIBUTE_NAME" + std::to_string(semanticId) + " = ";
+            inputFetchDefinition += "*(device " + formatName + "*)";
+            inputFetchDefinition += "(vertexBuffer" + std::to_string(attr.attributeBufferIndex);
+            inputFetchDefinition += " + vid + " + std::to_string(attr.offset) + ");\n";
+
+      		if (fetchType.has_value())
+     			cemu_assert_debug(fetchType == attr.fetchType);
+      		else
+     			fetchType = attr.fetchType;
+
+      		if (attr.fetchType == LatteConst::INSTANCE_DATA)
+      		{
+     			cemu_assert_debug(attr.aluDivisor == 1); // other divisor not yet supported
+      		}
+       	}
+
+		uint32 bufferIndex = bufferGroup.attributeBufferIndex;
+		uint32 bufferBaseRegisterIndex = mmSQ_VTX_ATTRIBUTE_BLOCK_START + bufferIndex * 7;
+		uint32 bufferStride = (lcr.GetRawView()[bufferBaseRegisterIndex + 2] >> 11) & 0xFFFF;
+
+		fullCode += ", device uchar* vertexBuffer" + std::to_string(bufferIndex) + " [[buffer(" + std::to_string(GET_MTL_VERTEX_BUFFER_INDEX(bufferIndex)) + ")]]";
+	}
+	inputFetchDefinition += "return in;\n";
+	inputFetchDefinition += "}\n";
+
+	fullCode += vertexBufferDefinitions + "\n";
+	fullCode += vertexBuffers + "\n";
+    fullCode += m_mslCode;
+    fullCode += inputFetchDefinition;
+
+    Compile(fullCode);
+}
+
+void RendererShaderMtl::CompileMeshFunction(const LatteContextRegister& lcr, const LatteFetchShader* fetchShader)
+{
+    cemu_assert_debug(m_type == ShaderType::kGeometry);
+
+    std::string fullCode;
+
+    // Primitive type
+    const LattePrimitiveMode primitiveMode = static_cast<LattePrimitiveMode>(lcr.VGT_PRIMITIVE_TYPE.get_PRIMITIVE_MODE());
+    fullCode += "#define PRIMITIVE_TYPE ";
+    switch (primitiveMode)
+    {
+    case LattePrimitiveMode::POINTS:
+        fullCode += "point";
+        break;
+    case LattePrimitiveMode::LINES:
+        fullCode += "line";
+        break;
+    case LattePrimitiveMode::TRIANGLES:
+        fullCode += "triangle";
+        break;
+    default:
+        break;
+    }
+    fullCode += "\n";
+
+    fullCode += m_mslCode;
+    Compile(fullCode);
+}
+
 void RendererShaderMtl::CompileFragmentFunction(CachedFBOMtl* activeFBO)
 {
     cemu_assert_debug(m_type == ShaderType::kFragment);
 
-    if (m_function)
-        m_function->release();
-
     std::string fullCode;
 
     // Define color attachment data types
@@ -77,6 +235,9 @@ void RendererShaderMtl::CompileFragmentFunction(CachedFBOMtl* activeFBO)
 
 void RendererShaderMtl::Compile(const std::string& mslCode)
 {
+    if (m_function)
+        m_function->release();
+
     NS::Error* error = nullptr;
 	MTL::Library* library = m_mtlr->GetDevice()->newLibrary(ToNSString(mslCode), nullptr, &error);
 	if (error)

src/Cafe/HW/Latte/Renderer/Metal/RendererShaderMtl.h

@@ -21,6 +21,13 @@ public:
 	RendererShaderMtl(class MetalRenderer* mtlRenderer, ShaderType type, uint64 baseHash, uint64 auxHash, bool isGameShader, bool isGfxPackShader, const std::string& mslCode);
 	virtual ~RendererShaderMtl();
 
+	void CompileVertexFunction()
+	{
+	    Compile(m_mslCode);
+	}
+
+	void CompileObjectFunction(const LatteContextRegister& lcr, const LatteFetchShader* fetchShader, const LatteDecompilerShader* vertexShader, Renderer::INDEX_TYPE hostIndexType);
+	void CompileMeshFunction(const LatteContextRegister& lcr, const LatteFetchShader* fetchShader);
 	void CompileFragmentFunction(CachedFBOMtl* activeFBO);
 
 	MTL::Function* GetFunction() const