initialize Metal

.gitmodules

@@ -16,3 +16,6 @@
 [submodule "dependencies/imgui"]
 	path = dependencies/imgui
 	url = https://github.com/ocornut/imgui
+[submodule "dependencies/metal-cpp"]
+	path = dependencies/metal-cpp
+	url = https://github.com/bkaradzic/metal-cpp.git

CMakeLists.txt

@@ -166,6 +166,11 @@ if (ENABLE_OPENGL)
 	find_package(OpenGL REQUIRED)
 endif()
 
+# TODO: handle this differently?
+if (ENABLE_METAL AND APPLE)
+    include_directories(${CMAKE_SOURCE_DIR}/dependencies/metal-cpp)
+endif()
+
 if (ENABLE_DISCORD_RPC)
 	add_compile_definitions(ENABLE_DISCORD_RPC)
 	add_subdirectory(dependencies/discord-rpc EXCLUDE_FROM_ALL)

dependencies/metal-cpp

@@ -0,0 +1 @@
+Subproject commit a63bd172ddcba73a3d87ca32032b66ad41ddb9a6

src/Cafe/CMakeLists.txt

@@ -528,7 +528,16 @@ if(ENABLE_METAL)
     if(APPLE)
         target_sources(CemuCafe PRIVATE
             HW/Latte/Renderer/Metal/MetalRenderer.cpp
+            HW/Latte/Renderer/Metal/MetalRenderer.h
+            HW/Latte/Renderer/Metal/MetalCppImpl.cpp
+            HW/Latte/Renderer/Metal/LatteTextureMtl.cpp
+            HW/Latte/Renderer/Metal/LatteTextureMtl.h
         )
+
+        #target_link_libraries(CemuCafe PRIVATE
+        #    "-framework Metal"
+        #    "-framework QuartzCore"
+        #)
     else()
         message(FATAL_ERROR "Metal is only supported on macOS")
     endif()

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

@@ -0,0 +1,92 @@
+#include "Cafe/HW/Latte/Renderer/Metal/LatteTextureMtl.h"
+//#include "Cafe/HW/Latte/Renderer/Metal/LatteTextureViewMtl.h"
+#include "Cafe/HW/Latte/Renderer/Metal/MetalRenderer.h"
+
+LatteTextureMtl::LatteTextureMtl(class MetalRenderer* mtlRenderer, Latte::E_DIM dim, MPTR physAddress, MPTR physMipAddress, Latte::E_GX2SURFFMT format, uint32 width, uint32 height, uint32 depth, uint32 pitch, uint32 mipLevels, uint32 swizzle,
+	Latte::E_HWTILEMODE tileMode, bool isDepth)
+	: LatteTexture(dim, physAddress, physMipAddress, format, width, height, depth, pitch, mipLevels, swizzle, tileMode, isDepth), m_mtlr(mtlRenderer)
+{
+    MTL::TextureDescriptor* desc = MTL::TextureDescriptor::alloc()->init();
+	sint32 effectiveBaseWidth = width;
+	sint32 effectiveBaseHeight = height;
+	sint32 effectiveBaseDepth = depth;
+	if (overwriteInfo.hasResolutionOverwrite)
+	{
+		effectiveBaseWidth = overwriteInfo.width;
+		effectiveBaseHeight = overwriteInfo.height;
+		effectiveBaseDepth = overwriteInfo.depth;
+	}
+	effectiveBaseDepth = std::max(1, effectiveBaseDepth);
+
+	desc->setWidth(effectiveBaseWidth);
+	desc->setHeight(effectiveBaseHeight);
+	desc->setMipmapLevelCount(mipLevels);
+
+	if (dim == Latte::E_DIM::DIM_3D)
+	{
+		desc->setDepth(effectiveBaseDepth);
+	}
+	else
+	{
+		desc->setArrayLength(effectiveBaseDepth);
+	}
+
+	// TODO: uncomment
+	//MetalRenderer::FormatInfoMTL texFormatInfo;
+	//mtlRenderer->GetTextureFormatInfoMTL(format, isDepth, dim, effectiveBaseWidth, effectiveBaseHeight, &texFormatInfo);
+	//cemu_assert_debug(hasStencil == ((texFormatInfo.vkImageAspect & VK_IMAGE_ASPECT_STENCIL_BIT) != 0));
+	//imageInfo.format = texFormatInfo.mtlPixelFormat;
+	desc->setPixelFormat(MTL::PixelFormatRGBA8Unorm);
+
+	// TODO: is write needed?
+	MTL::TextureUsage usage = MTL::TextureUsageShaderRead | MTL::TextureUsageShaderWrite;
+	// TODO: add more conditions
+	if (Latte::IsCompressedFormat(format) == false)
+	{
+		usage |= MTL::TextureUsageRenderTarget;
+	}
+	desc->setUsage(usage);
+
+	if (dim == Latte::E_DIM::DIM_2D)
+		desc->setTextureType(MTL::TextureType2D);
+	else if (dim == Latte::E_DIM::DIM_1D)
+	    desc->setTextureType(MTL::TextureType1D);
+	else if (dim == Latte::E_DIM::DIM_3D)
+	    desc->setTextureType(MTL::TextureType3D);
+	else if (dim == Latte::E_DIM::DIM_2D_ARRAY)
+        desc->setTextureType(MTL::TextureType2DArray);
+	else if (dim == Latte::E_DIM::DIM_CUBEMAP)
+	    desc->setTextureType(MTL::TextureTypeCube); // TODO: is this correct?
+	else if (dim == Latte::E_DIM::DIM_2D_MSAA)
+	    desc->setTextureType(MTL::TextureType2D);
+	else
+	{
+		cemu_assert_unimplemented();
+	}
+
+	m_texture = mtlRenderer->GetDevice()->newTexture(desc);
+	desc->release();
+}
+
+LatteTextureMtl::~LatteTextureMtl()
+{
+	m_texture->release();
+}
+
+LatteTextureView* LatteTextureMtl::CreateView(Latte::E_DIM dim, Latte::E_GX2SURFFMT format, sint32 firstMip, sint32 mipCount, sint32 firstSlice, sint32 sliceCount)
+{
+	cemu_assert_debug(mipCount > 0);
+	cemu_assert_debug(sliceCount > 0);
+	cemu_assert_debug((firstMip + mipCount) <= this->mipLevels);
+	cemu_assert_debug((firstSlice + sliceCount) <= this->depth);
+
+	//return new LatteTextureViewMtl(m_mtlr, this, dim, format, firstMip, mipCount, firstSlice, sliceCount);
+	cemuLog_logDebug(LogType::Force, "not implemented");
+
+	return nullptr;
+}
+
+void LatteTextureMtl::AllocateOnHost()
+{
+	cemuLog_logDebug(LogType::Force, "not implemented");
+}

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

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <Metal/Metal.hpp>
+
+#include "Cafe/HW/Latte/Core/LatteTexture.h"
+#include "util/ChunkedHeap/ChunkedHeap.h"
+
+class LatteTextureMtl : public LatteTexture
+{
+public:
+	LatteTextureMtl(class MetalRenderer* vkRenderer, Latte::E_DIM dim, MPTR physAddress, MPTR physMipAddress, Latte::E_GX2SURFFMT format, uint32 width, uint32 height, uint32 depth, uint32 pitch, uint32 mipLevels,
+		uint32 swizzle, Latte::E_HWTILEMODE tileMode, bool isDepth);
+
+	~LatteTextureMtl();
+
+	void AllocateOnHost() override;
+
+protected:
+	LatteTextureView* CreateView(Latte::E_DIM dim, Latte::E_GX2SURFFMT format, sint32 firstMip, sint32 mipCount, sint32 firstSlice, sint32 sliceCount) override;
+
+public:
+	uint64 m_vkFlushIndex{}; // used to track read-write dependencies within the same renderpass
+
+	uint64 m_vkFlushIndex_read{};
+	uint64 m_vkFlushIndex_write{};
+
+	uint32 m_collisionCheckIndex{}; // used to track if texture is being both sampled and output to during drawcall
+
+private:
+	class MetalRenderer* m_mtlr;
+
+	MTL::Texture* m_texture;
+};

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

@@ -0,0 +1,6 @@
+#define NS_PRIVATE_IMPLEMENTATION
+#define CA_PRIVATE_IMPLEMENTATION
+#define MTL_PRIVATE_IMPLEMENTATION
+#include <Foundation/Foundation.hpp>
+#include <QuartzCore/QuartzCore.hpp>
+#include <Metal/Metal.hpp>

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

@@ -1,5 +1,7 @@
 #include "Cafe/HW/Latte/Renderer/Metal/MetalRenderer.h"
 
+#include "Cafe/HW/Latte/Renderer/Metal/LatteTextureMtl.h"
+
 void MetalRenderer::InitializeLayer(const Vector2i& size, bool mainWindow) {
     /*
     const auto& windowInfo = gui_getWindowInfo().window_main;
@@ -21,7 +23,8 @@ void MetalRenderer::InitializeLayer(const Vector2i& size, bool mainWindow) {
 }
 
 void MetalRenderer::Initialize() {
-    cemuLog_logDebug(LogType::Force, "not implemented");
+    m_device = MTL::CreateSystemDefaultDevice();
+    m_commandQueue = m_device->newCommandQueue();
 }
 
 void MetalRenderer::Shutdown() {
@@ -30,10 +33,17 @@ void MetalRenderer::Shutdown() {
 
 bool MetalRenderer::IsPadWindowActive() {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return false;
 }
 
 bool MetalRenderer::GetVRAMInfo(int& usageInMB, int& totalInMB) const {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    usageInMB = 1024;
+    totalInMB = 1024;
+
+    return false;
 }
 
 void MetalRenderer::ClearColorbuffer(bool padView) {
@@ -55,6 +65,8 @@ void MetalRenderer::DrawBackbufferQuad(LatteTextureView* texView, RendererOutput
 }
 bool MetalRenderer::BeginFrame(bool mainWindow) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return false;
 }
 
 void MetalRenderer::Flush(bool waitIdle) {
@@ -79,6 +91,8 @@ void MetalRenderer::renderTarget_setScissor(sint32 scissorX, sint32 scissorY, si
 
 LatteCachedFBO* MetalRenderer::rendertarget_createCachedFBO(uint64 key) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::rendertarget_deleteCachedFBO(LatteCachedFBO* fbo) {
@@ -91,6 +105,8 @@ void MetalRenderer::rendertarget_bindFramebufferObject(LatteCachedFBO* cfbo) {
 
 void* MetalRenderer::texture_acquireTextureUploadBuffer(uint32 size) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::texture_releaseTextureUploadBuffer(uint8* mem) {
@@ -99,6 +115,8 @@ void MetalRenderer::texture_releaseTextureUploadBuffer(uint8* mem) {
 
 TextureDecoder* MetalRenderer::texture_chooseDecodedFormat(Latte::E_GX2SURFFMT format, bool isDepth, Latte::E_DIM dim, uint32 width, uint32 height) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::texture_clearSlice(LatteTexture* hostTexture, sint32 sliceIndex, sint32 mipIndex) {
@@ -118,7 +136,7 @@ void MetalRenderer::texture_clearDepthSlice(LatteTexture* hostTexture, uint32 sl
 }
 
 LatteTexture* MetalRenderer::texture_createTextureEx(Latte::E_DIM dim, MPTR physAddress, MPTR physMipAddress, Latte::E_GX2SURFFMT format, uint32 width, uint32 height, uint32 depth, uint32 pitch, uint32 mipLevels, uint32 swizzle, Latte::E_HWTILEMODE tileMode, bool isDepth) {
-    cemuLog_logDebug(LogType::Force, "not implemented");
+    return new LatteTextureMtl(this, dim, physAddress, physMipAddress, format, width, height, depth, pitch, mipLevels, swizzle, tileMode, isDepth);
 }
 
 void MetalRenderer::texture_setLatteTexture(LatteTextureView* textureView, uint32 textureUnit) {
@@ -131,6 +149,8 @@ void MetalRenderer::texture_copyImageSubData(LatteTexture* src, sint32 srcMip, s
 
 LatteTextureReadbackInfo* MetalRenderer::texture_createReadback(LatteTextureView* textureView) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::surfaceCopy_copySurfaceWithFormatConversion(LatteTexture* sourceTexture, sint32 srcMip, sint32 srcSlice, LatteTexture* destinationTexture, sint32 dstMip, sint32 dstSlice, sint32 width, sint32 height) {
@@ -163,6 +183,8 @@ void MetalRenderer::buffer_bindUniformBuffer(LatteConst::ShaderType shaderType,
 
 RendererShader* MetalRenderer::shader_create(RendererShader::ShaderType type, uint64 baseHash, uint64 auxHash, const std::string& source, bool compileAsync, bool isGfxPackSource) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::streamout_setupXfbBuffer(uint32 bufferIndex, sint32 ringBufferOffset, uint32 rangeAddr, uint32 rangeSize) {
@@ -191,6 +213,8 @@ void MetalRenderer::draw_endSequence() {
 
 void* MetalRenderer::indexData_reserveIndexMemory(uint32 size, uint32& offset, uint32& bufferIndex) {
     cemuLog_logDebug(LogType::Force, "not implemented");
+
+    return nullptr;
 }
 
 void MetalRenderer::indexData_uploadIndexMemory(uint32 offset, uint32 size) {

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

@@ -1,5 +1,9 @@
 #pragma once
 
+#include <Foundation/Foundation.hpp>
+#include <QuartzCore/QuartzCore.hpp>
+#include <Metal/Metal.hpp>
+
 #include "Cafe/HW/Latte/Renderer/Renderer.h"
 
 class MetalRenderer : public Renderer
@@ -16,6 +20,11 @@ public:
 	    return static_cast<MetalRenderer*>(g_renderer.get());
 	}
 
+	// Helper functions
+	MTL::Device* GetDevice() const {
+        return m_device;
+    }
+
 	void InitializeLayer(const Vector2i& size, bool mainWindow);
 
 	void Initialize() override;
@@ -44,6 +53,8 @@ public:
 	// imgui
 	bool ImguiBegin(bool mainWindow) override {
 	    cemuLog_logDebug(LogType::Force, "Imgui is not yet supported on Metal");
+
+		return false;
 	};
 
 	void ImguiEnd() override {
@@ -52,6 +63,8 @@ public:
 
 	ImTextureID GenerateTexture(const std::vector<uint8>& data, const Vector2i& size) override {
 	    cemuLog_logDebug(LogType::Force, "Imgui is not yet supported on Metal");
+
+	    return nullptr;
 	};
 
 	void DeleteTexture(ImTextureID id) override {
@@ -122,6 +135,8 @@ public:
 	// occlusion queries
 	LatteQueryObject* occlusionQuery_create() override {
 	    cemuLog_logDebug(LogType::Force, "Occlusion queries are not yet supported on Metal");
+
+		return nullptr;
 	}
 
 	void occlusionQuery_destroy(LatteQueryObject* queryObj) override {
@@ -137,6 +152,10 @@ public:
 	}
 
 
-protected:
-	//CA::MetalLayer* m_metalLayer;
+private:
+	CA::MetalLayer* m_metalLayer;
+
+	// Metal objects
+	MTL::Device* m_device;
+	MTL::CommandQueue* m_commandQueue;
 };

src/Cafe/HW/Latte/Renderer/RendererOuputShader.cpp

@@ -83,7 +83,7 @@ void main(){
 const std::string RendererOutputShader::s_hermite_shader_source =
 R"(#version 420
 
-in vec4 gl_FragCoord;	
+in vec4 gl_FragCoord;
 in vec2 passUV;
 layout(binding=0) uniform sampler2D textureSrc;
 uniform vec2 textureSrcResolution;
@@ -100,7 +100,7 @@ vec3 CubicHermite (vec3 A, vec3 B, vec3 C, vec3 D, float t)
     vec3 b = A - (5.0*B)/2.0 + 2.0*C - D / 2.0;
     vec3 c = -A/2.0 + C/2.0;
    	vec3 d = B;
-    
+
     return a*t3 + b*t2 + c*t + d;
 }
 
@@ -108,36 +108,36 @@ vec3 CubicHermite (vec3 A, vec3 B, vec3 C, vec3 D, float t)
 vec3 BicubicHermiteTexture(vec2 uv, vec4 texelSize)
 {
 	vec2 pixel = uv*texelSize.zw + 0.5;
-	vec2 frac = fract(pixel);	
+	vec2 frac = fract(pixel);
     pixel = floor(pixel) / texelSize.zw - vec2(texelSize.xy/2.0);
-	
+
 	vec4 doubleSize = texelSize*texelSize;
 
 	vec3 C00 = texture(textureSrc, pixel + vec2(-texelSize.x ,-texelSize.y)).rgb;
     vec3 C10 = texture(textureSrc, pixel + vec2( 0.0        ,-texelSize.y)).rgb;
     vec3 C20 = texture(textureSrc, pixel + vec2( texelSize.x ,-texelSize.y)).rgb;
     vec3 C30 = texture(textureSrc, pixel + vec2( doubleSize.x,-texelSize.y)).rgb;
-    
+
     vec3 C01 = texture(textureSrc, pixel + vec2(-texelSize.x , 0.0)).rgb;
     vec3 C11 = texture(textureSrc, pixel + vec2( 0.0        , 0.0)).rgb;
     vec3 C21 = texture(textureSrc, pixel + vec2( texelSize.x , 0.0)).rgb;
-    vec3 C31 = texture(textureSrc, pixel + vec2( doubleSize.x, 0.0)).rgb;    
-    
+    vec3 C31 = texture(textureSrc, pixel + vec2( doubleSize.x, 0.0)).rgb;
+
     vec3 C02 = texture(textureSrc, pixel + vec2(-texelSize.x , texelSize.y)).rgb;
     vec3 C12 = texture(textureSrc, pixel + vec2( 0.0        , texelSize.y)).rgb;
     vec3 C22 = texture(textureSrc, pixel + vec2( texelSize.x , texelSize.y)).rgb;
-    vec3 C32 = texture(textureSrc, pixel + vec2( doubleSize.x, texelSize.y)).rgb;    
-    
+    vec3 C32 = texture(textureSrc, pixel + vec2( doubleSize.x, texelSize.y)).rgb;
+
     vec3 C03 = texture(textureSrc, pixel + vec2(-texelSize.x , doubleSize.y)).rgb;
     vec3 C13 = texture(textureSrc, pixel + vec2( 0.0        , doubleSize.y)).rgb;
     vec3 C23 = texture(textureSrc, pixel + vec2( texelSize.x , doubleSize.y)).rgb;
-    vec3 C33 = texture(textureSrc, pixel + vec2( doubleSize.x, doubleSize.y)).rgb;    
-    
+    vec3 C33 = texture(textureSrc, pixel + vec2( doubleSize.x, doubleSize.y)).rgb;
+
     vec3 CP0X = CubicHermite(C00, C10, C20, C30, frac.x);
     vec3 CP1X = CubicHermite(C01, C11, C21, C31, frac.x);
     vec3 CP2X = CubicHermite(C02, C12, C22, C32, frac.x);
     vec3 CP3X = CubicHermite(C03, C13, C23, C33, frac.x);
-    
+
     return CubicHermite(CP0X, CP1X, CP2X, CP3X, frac.y);
 }
 
@@ -190,7 +190,7 @@ void RendererOutputShader::SetUniformParameters(const LatteTextureView& texture_
 	float res[2];
 	// vertex shader
 	if (m_attributes[0].m_loc_texture_src_resolution != -1)
-	{ 
+	{
 		res[0] = (float)texture_view.baseTexture->width;
 		res[1] = (float)texture_view.baseTexture->height;
 		m_vertex_shader->SetUniform2fv(m_attributes[0].m_loc_texture_src_resolution, res, 1);
@@ -250,9 +250,9 @@ std::string RendererOutputShader::GetOpenGlVertexSource(bool render_upside_down)
 			R"(#version 400
 out vec2 passUV;
 
-out gl_PerVertex 
-{ 
-   vec4 gl_Position; 
+out gl_PerVertex
+{
+   vec4 gl_Position;
 };
 
 void main(){
@@ -286,7 +286,7 @@ void main(){
 
 		vertex_source <<
 			R"(	passUV = vUV;
-	gl_Position = vec4(vPos, 0.0, 1.0);	
+	gl_Position = vec4(vPos, 0.0, 1.0);
 }
 )";
 		return vertex_source.str();
@@ -300,9 +300,9 @@ std::string RendererOutputShader::GetVulkanVertexSource(bool render_upside_down)
 			R"(#version 450
 layout(location = 0) out vec2 passUV;
 
-out gl_PerVertex 
-{ 
-   vec4 gl_Position; 
+out gl_PerVertex
+{
+   vec4 gl_Position;
 };
 
 void main(){
@@ -336,7 +336,7 @@ void main(){
 
 		vertex_source <<
 			R"(	passUV = vUV;
-	gl_Position = vec4(vPos, 0.0, 1.0);	
+	gl_Position = vec4(vPos, 0.0, 1.0);
 }
 )";
 		return vertex_source.str();
@@ -359,7 +359,7 @@ void RendererOutputShader::InitializeStatic()
 		s_hermit_shader = new RendererOutputShader(vertex_source, s_hermite_shader_source);
 		s_hermit_shader_ud = new RendererOutputShader(vertex_source_ud, s_hermite_shader_source);
 	}
-	else
+	else if (g_renderer->GetType() == RendererAPI::Vulkan)
 	{
 		vertex_source = GetVulkanVertexSource(false);
 		vertex_source_ud = GetVulkanVertexSource(true);
@@ -372,5 +372,7 @@ void RendererOutputShader::InitializeStatic()
 
 		s_hermit_shader = new RendererOutputShader(vertex_source, s_hermite_shader_source);
 		s_hermit_shader_ud = new RendererOutputShader(vertex_source_ud, s_hermite_shader_source);*/
+	} else {
+	    cemuLog_logDebug(LogType::Force, "Output shader not implemented for Metal");
 	}
 }