metal: add basic staging buffer pool and texture cache

src/video_core/CMakeLists.txt

@@ -377,7 +377,10 @@ if (APPLE)
         renderer_metal/mtl_command_recorder.mm
         renderer_metal/mtl_device.mm
         renderer_metal/mtl_rasterizer.mm
+        renderer_metal/mtl_staging_buffer_pool.mm
         renderer_metal/mtl_swap_chain.mm
+        renderer_metal/mtl_texture_cache.mm
+        renderer_metal/mtl_texture_cache_base.cpp
         renderer_metal/renderer_metal.mm
     )
 endif()

src/video_core/renderer_metal/mtl_command_recorder.h

@@ -18,6 +18,13 @@ public:
 
     void BeginRenderPass(MTLRenderPassDescriptor* render_pass_descriptor);
 
+    void CheckIfRenderPassIsActive() {
+        if (!encoder || encoder_type != EncoderType::Render) {
+            throw std::runtime_error(
+                "Trying to perform render command, but render pass is not active");
+        }
+    }
+
     void RequireComputeEncoder();
 
     void RequireBlitEncoder();

src/video_core/renderer_metal/mtl_command_recorder.mm

@@ -49,10 +49,12 @@ void CommandRecorder::Present(CAMetalDrawable_t drawable) {
 }
 
 void CommandRecorder::Submit() {
-    EndEncoding();
-    [command_buffer commit];
-    [command_buffer release];
-    command_buffer = nil;
+    if (command_buffer) {
+        EndEncoding();
+        [command_buffer commit];
+        [command_buffer release];
+        command_buffer = nil;
+    }
 }
 
 void CommandRecorder::RequireCommandBuffer() {

src/video_core/renderer_metal/mtl_rasterizer.h

@@ -15,6 +15,7 @@ class System;
 namespace Metal {
 
 class Device;
+class CommandRecorder;
 class SwapChain;
 
 class RasterizerMetal;
@@ -37,7 +38,8 @@ public:
 class RasterizerMetal final : public VideoCore::RasterizerInterface,
                               protected VideoCommon::ChannelSetupCaches<VideoCommon::ChannelInfo> {
 public:
-    explicit RasterizerMetal(Tegra::GPU& gpu_, const Device& device_, const SwapChain& swap_chain_);
+    explicit RasterizerMetal(Tegra::GPU& gpu_, const Device& device_,
+                             CommandRecorder& command_recorder_, const SwapChain& swap_chain_);
     ~RasterizerMetal() override;
 
     void Draw(bool is_indexed, u32 instance_count) override;
@@ -91,9 +93,8 @@ private:
     AccelerateDMA accelerate_dma;
 
     const Device& device;
+    CommandRecorder& command_recorder;
     const SwapChain& swap_chain;
-
-    MTLCommandBuffer_t command_buffer;
 };
 
 } // namespace Metal

src/video_core/renderer_metal/mtl_rasterizer.mm

@@ -8,8 +8,9 @@
 #include "video_core/engines/draw_manager.h"
 #include "video_core/engines/kepler_compute.h"
 #include "video_core/engines/maxwell_3d.h"
-#include "video_core/renderer_metal/mtl_rasterizer.h"
+#include "video_core/renderer_metal/mtl_command_recorder.h"
 #include "video_core/renderer_metal/mtl_device.h"
+#include "video_core/renderer_metal/mtl_rasterizer.h"
 
 #include <iostream>
 
@@ -24,11 +25,14 @@ bool AccelerateDMA::BufferClear(GPUVAddr src_address, u64 amount, u32 value) {
     return true;
 }
 
-RasterizerMetal::RasterizerMetal(Tegra::GPU& gpu_, const Device& device_, const SwapChain& swap_chain_)
-    : gpu{gpu_}, device{device_}, swap_chain{swap_chain_} {}
+RasterizerMetal::RasterizerMetal(Tegra::GPU& gpu_, const Device& device_,
+                                 CommandRecorder& command_recorder_, const SwapChain& swap_chain_)
+    : gpu{gpu_}, device{device_}, command_recorder{command_recorder_}, swap_chain{swap_chain_} {}
 RasterizerMetal::~RasterizerMetal() = default;
 
 void RasterizerMetal::Draw(bool is_indexed, u32 instance_count) {
+    // TODO: uncomment
+    //command_recorder.CheckIfRenderPassIsActive();
     //const auto& draw_state = maxwell3d->draw_manager->GetDrawState();
     if (is_indexed) {
         std::cout << "DrawIndexed" << std::endl;

src/video_core/renderer_metal/mtl_staging_buffer_pool.h

@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <climits>
+#include <span>
+#include <vector>
+
+#include "common/common_types.h"
+
+#include "objc_bridge.h"
+#include "video_core/renderer_metal/objc_bridge.h"
+
+namespace Metal {
+
+class Device;
+class CommandRecorder;
+
+enum class MemoryUsage {
+    DeviceLocal,
+    Upload,
+    Download,
+};
+
+struct StagingBufferRef {
+    StagingBufferRef(MTLBuffer_t buffer_, size_t offset_, std::span<u8> mapped_span_);
+    ~StagingBufferRef();
+
+    MTLBuffer_t buffer;
+    size_t offset;
+    std::span<u8> mapped_span;
+};
+
+struct StagingBuffer {
+    StagingBuffer(MTLBuffer_t buffer_, std::span<u8> mapped_span_);
+    ~StagingBuffer();
+
+    MTLBuffer_t buffer;
+    std::span<u8> mapped_span;
+
+    StagingBufferRef Ref() const noexcept;
+};
+
+class StagingBufferPool {
+public:
+    static constexpr size_t NUM_SYNCS = 16;
+
+    explicit StagingBufferPool(const Device& device, CommandRecorder& command_recorder_);
+    ~StagingBufferPool();
+
+    StagingBufferRef Request(size_t size, MemoryUsage usage, bool deferred = false);
+    void FreeDeferred(StagingBufferRef& ref);
+
+    [[nodiscard]] MTLBuffer_t GetSTreamBufferHandle() const noexcept {
+        return stream_buffer;
+    }
+
+    void TickFrame();
+
+private:
+    struct StagingBuffers {
+        std::vector<StagingBuffer> entries;
+        size_t delete_index = 0;
+        size_t iterate_index = 0;
+    };
+
+    static constexpr size_t NUM_LEVELS = sizeof(size_t) * CHAR_BIT;
+    using StagingBuffersCache = std::array<StagingBuffers, NUM_LEVELS>;
+
+    StagingBufferRef GetStreamBuffer(size_t size);
+
+    StagingBufferRef GetStagingBuffer(size_t size, MemoryUsage usage, bool deferred = false);
+
+    StagingBufferRef CreateStagingBuffer(size_t size, MemoryUsage usage, bool deferred);
+
+    StagingBuffersCache& GetCache(MemoryUsage usage);
+
+    void ReleaseCache(MemoryUsage usage);
+
+    void ReleaseLevel(StagingBuffersCache& cache, size_t log2);
+
+    const Device& device;
+    CommandRecorder& command_recorder;
+
+    MTLBuffer_t stream_buffer{};
+
+    size_t iterator = 0;
+    size_t used_iterator = 0;
+    size_t free_iterator = 0;
+    std::array<u64, NUM_SYNCS> sync_ticks{};
+
+    StagingBuffersCache device_local_cache;
+    StagingBuffersCache upload_cache;
+    StagingBuffersCache download_cache;
+
+    size_t current_delete_level = 0;
+    u64 buffer_index = 0;
+    u64 unique_ids{};
+};
+
+} // namespace Metal

src/video_core/renderer_metal/mtl_staging_buffer_pool.mm

@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <algorithm>
+#include <utility>
+#include <vector>
+
+#include <fmt/format.h>
+
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/bit_util.h"
+#include "common/common_types.h"
+#include "common/literals.h"
+#include "video_core/renderer_metal/mtl_command_recorder.h"
+#include "video_core/renderer_metal/mtl_device.h"
+#include "video_core/renderer_metal/mtl_staging_buffer_pool.h"
+
+namespace Metal {
+
+StagingBufferRef::StagingBufferRef(MTLBuffer_t buffer_, size_t offset_, std::span<u8> mapped_span_)
+    : buffer{[buffer_ retain]}, offset{offset_}, mapped_span{mapped_span_} {}
+
+StagingBufferRef::~StagingBufferRef() {
+    [buffer release];
+}
+
+StagingBuffer::StagingBuffer(MTLBuffer_t buffer_, std::span<u8> mapped_span_)
+    : buffer{[buffer_ retain]}, mapped_span{mapped_span_} {}
+
+StagingBuffer::~StagingBuffer() {
+    [buffer release];
+}
+
+StagingBufferRef StagingBuffer::Ref() const noexcept {
+    return StagingBufferRef(buffer, 0, mapped_span);
+}
+
+// TODO: use the _MiB suffix
+constexpr size_t STREAM_BUFFER_SIZE = 128 * 1024 * 1024;//128_MiB;
+constexpr size_t REGION_SIZE = STREAM_BUFFER_SIZE / StagingBufferPool::NUM_SYNCS;
+
+StagingBufferPool::StagingBufferPool(const Device& device_, CommandRecorder& command_recorder_)
+    : device{device_}, command_recorder{command_recorder_} {
+    stream_buffer = [device.GetDevice() newBufferWithLength:STREAM_BUFFER_SIZE
+                                                    options:MTLResourceStorageModePrivate];
+}
+
+StagingBufferPool::~StagingBufferPool() = default;
+
+StagingBufferRef StagingBufferPool::Request(size_t size, MemoryUsage usage, bool deferred) {
+    if (!deferred && usage == MemoryUsage::Upload && size <= REGION_SIZE) {
+        return GetStreamBuffer(size);
+    }
+
+    return GetStagingBuffer(size, usage, deferred);
+}
+
+void StagingBufferPool::FreeDeferred(StagingBufferRef& ref) {
+   // TODO: implement this
+}
+
+void StagingBufferPool::TickFrame() {
+    current_delete_level = (current_delete_level + 1) % NUM_LEVELS;
+
+    ReleaseCache(MemoryUsage::DeviceLocal);
+    ReleaseCache(MemoryUsage::Upload);
+    ReleaseCache(MemoryUsage::Download);
+}
+
+StagingBufferRef StagingBufferPool::GetStreamBuffer(size_t size) {
+    // TODO: implement this
+
+    // HACK
+    return GetStagingBuffer(size, MemoryUsage::Upload);
+}
+
+StagingBufferRef StagingBufferPool::GetStagingBuffer(size_t size, MemoryUsage usage,
+                                                     bool deferred) {
+    return CreateStagingBuffer(size, usage, deferred);
+}
+
+StagingBufferRef StagingBufferPool::CreateStagingBuffer(size_t size, MemoryUsage usage,
+                                                        bool deferred) {
+    const u32 log2 = Common::Log2Ceil64(size);
+    MTLBuffer_t buffer = [device.GetDevice() newBufferWithLength:size
+                                                         options:MTLResourceStorageModePrivate];
+    // TODO: check if the mapped span is correct
+    std::span<u8> mapped_span(static_cast<u8*>([buffer contents]), size);
+    auto& entry = GetCache(usage)[log2].entries.emplace_back(buffer, mapped_span);
+
+    return entry.Ref();
+}
+
+StagingBufferPool::StagingBuffersCache& StagingBufferPool::GetCache(MemoryUsage usage) {
+    switch (usage) {
+    case MemoryUsage::DeviceLocal:
+        return device_local_cache;
+    case MemoryUsage::Upload:
+        return upload_cache;
+    case MemoryUsage::Download:
+        return download_cache;
+    default:
+        ASSERT_MSG(false, "Invalid memory usage={}", usage);
+        return upload_cache;
+    }
+}
+
+void StagingBufferPool::ReleaseCache(MemoryUsage usage) {
+    ReleaseLevel(GetCache(usage), current_delete_level);
+}
+
+void StagingBufferPool::ReleaseLevel(StagingBuffersCache& cache, size_t log2) {
+    // TODO: implement this
+}
+
+} // namespace Metal

src/video_core/renderer_metal/mtl_texture_cache.h

@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "video_core/texture_cache/texture_cache_base.h"
+
+#include "shader_recompiler/shader_info.h"
+#include "video_core/renderer_metal/mtl_staging_buffer_pool.h"
+#include "video_core/renderer_metal/objc_bridge.h"
+#include "video_core/texture_cache/image_view_base.h"
+
+namespace Settings {
+struct ResolutionScalingInfo;
+}
+
+namespace Metal {
+
+using Common::SlotVector;
+using VideoCommon::ImageId;
+using VideoCommon::NUM_RT;
+using VideoCommon::Region2D;
+using VideoCommon::RenderTargets;
+using VideoCore::Surface::PixelFormat;
+
+class Device;
+class Image;
+class ImageView;
+class Framebuffer;
+
+class TextureCacheRuntime {
+public:
+    explicit TextureCacheRuntime(const Device& device_);
+
+    void Finish();
+
+    StagingBufferRef UploadStagingBuffer(size_t size);
+
+    StagingBufferRef DownloadStagingBuffer(size_t size, bool deferred = false);
+
+    void FreeDeferredStagingBuffer(StagingBufferRef& ref);
+
+    bool CanUploadMSAA() const noexcept {
+        return true;
+    }
+
+    void TickFrame();
+
+    u64 GetDeviceLocalMemory() const;
+
+    u64 GetDeviceMemoryUsage() const;
+
+    bool CanReportMemoryUsage() const;
+
+    void BlitImage(Framebuffer* dst_framebuffer, ImageView& dst, ImageView& src,
+                   const Region2D& dst_region, const Region2D& src_region,
+                   Tegra::Engines::Fermi2D::Filter filter,
+                   Tegra::Engines::Fermi2D::Operation operation);
+
+    void CopyImage(Image& dst, Image& src, std::span<const VideoCommon::ImageCopy> copies);
+
+    void CopyImageMSAA(Image& dst, Image& src, std::span<const VideoCommon::ImageCopy> copies);
+
+    bool ShouldReinterpret(Image& dst, Image& src);
+
+    void ReinterpretImage(Image& dst, Image& src, std::span<const VideoCommon::ImageCopy> copies);
+
+    void ConvertImage(Framebuffer* dst, ImageView& dst_view, ImageView& src_view);
+
+    void InsertUploadMemoryBarrier();
+
+    void TransitionImageLayout(Image& image) {}
+
+    void AccelerateImageUpload(Image&, const StagingBufferRef&,
+                               std::span<const VideoCommon::SwizzleParameters>);
+
+    bool HasNativeBgr() const noexcept {
+        return true;
+    }
+
+    bool HasBrokenTextureViewFormats() const noexcept {
+        return false;
+    }
+
+    void BarrierFeedbackLoop();
+
+    const Device& device;
+    const Settings::ResolutionScalingInfo& resolution;
+};
+
+class Image : public VideoCommon::ImageBase {
+public:
+    explicit Image(TextureCacheRuntime& runtime, const VideoCommon::ImageInfo& info,
+                   GPUVAddr gpu_addr, VAddr cpu_addr);
+    explicit Image(const VideoCommon::NullImageParams&);
+
+    ~Image();
+
+    Image(const Image&) = delete;
+    Image& operator=(const Image&) = delete;
+
+    Image(Image&&) = default;
+    Image& operator=(Image&&) = default;
+
+    void UploadMemory(MTLBuffer_t buffer, size_t offset,
+                      std::span<const VideoCommon::BufferImageCopy> copies);
+
+    void UploadMemory(const StagingBufferRef& map,
+                      std::span<const VideoCommon::BufferImageCopy> copies);
+
+    void DownloadMemory(MTLBuffer_t buffer, size_t offset,
+                        std::span<const VideoCommon::BufferImageCopy> copies);
+
+    void DownloadMemory(std::span<MTLBuffer_t> buffers, std::span<size_t> offsets,
+                        std::span<const VideoCommon::BufferImageCopy> copies);
+
+    void DownloadMemory(const StagingBufferRef& map,
+                        std::span<const VideoCommon::BufferImageCopy> copies);
+
+    bool IsRescaled() const;
+
+    bool ScaleUp(bool ignore = false);
+
+    bool ScaleDown(bool ignore = false);
+
+    MTLTexture_t GetHandle() const noexcept {
+        return texture;
+    }
+
+private:
+    MTLTexture_t texture;
+    bool initialized = false;
+};
+
+class ImageView : public VideoCommon::ImageViewBase {
+public:
+    explicit ImageView(TextureCacheRuntime&, const VideoCommon::ImageViewInfo&, ImageId, Image&);
+    explicit ImageView(TextureCacheRuntime&, const VideoCommon::ImageViewInfo&, ImageId, Image&,
+                       const SlotVector<Image>&);
+    explicit ImageView(TextureCacheRuntime&, const VideoCommon::ImageInfo&,
+                       const VideoCommon::ImageViewInfo&, GPUVAddr);
+    explicit ImageView(TextureCacheRuntime&, const VideoCommon::NullImageViewParams&);
+
+    ~ImageView();
+
+    ImageView(const ImageView&) = delete;
+    ImageView& operator=(const ImageView&) = delete;
+
+    ImageView(ImageView&&) = default;
+    ImageView& operator=(ImageView&&) = default;
+
+    MTLTexture_t GetHandle() const noexcept {
+        return texture;
+    }
+
+private:
+    MTLTexture_t texture;
+};
+
+class ImageAlloc : public VideoCommon::ImageAllocBase {};
+
+class Sampler {
+public:
+    explicit Sampler(TextureCacheRuntime&, const Tegra::Texture::TSCEntry&);
+
+    MTLSamplerState_t GetHandle() const noexcept {
+        return sampler_state;
+    }
+
+private:
+    MTLSamplerState_t sampler_state;
+};
+
+class Framebuffer {
+public:
+    explicit Framebuffer(TextureCacheRuntime& runtime, std::span<ImageView*, NUM_RT> color_buffers,
+                         ImageView* depth_buffer, const VideoCommon::RenderTargets& key);
+    ~Framebuffer();
+
+    Framebuffer(const Framebuffer&) = delete;
+    Framebuffer& operator=(const Framebuffer&) = delete;
+
+    Framebuffer(Framebuffer&&) = default;
+    Framebuffer& operator=(Framebuffer&&) = default;
+
+    void CreateRenderPassDescriptor(TextureCacheRuntime& runtime,
+                                    std::span<ImageView*, NUM_RT> color_buffers,
+                                    ImageView* depth_buffer, bool is_rescaled, size_t width,
+                                    size_t height);
+
+    MTLRenderPassDescriptor* GetHandle() const noexcept {
+        return render_pass;
+    }
+
+private:
+    MTLRenderPassDescriptor* render_pass{};
+};
+
+struct TextureCacheParams {
+    static constexpr bool ENABLE_VALIDATION = true;
+    static constexpr bool FRAMEBUFFER_BLITS = false;
+    static constexpr bool HAS_EMULATED_COPIES = false;
+    static constexpr bool HAS_DEVICE_MEMORY_INFO = true;
+    static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = true;
+
+    using Runtime = Metal::TextureCacheRuntime;
+    using Image = Metal::Image;
+    using ImageAlloc = Metal::ImageAlloc;
+    using ImageView = Metal::ImageView;
+    using Sampler = Metal::Sampler;
+    using Framebuffer = Metal::Framebuffer;
+    using AsyncBuffer = Metal::StagingBufferRef;
+    using BufferType = MTLBuffer_t;
+};
+
+using TextureCache = VideoCommon::TextureCache<TextureCacheParams>;
+
+} // namespace Metal

src/video_core/renderer_metal/mtl_texture_cache.mm

@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <algorithm>
+#include <array>
+#include <boost/container/small_vector.hpp>
+#include <span>
+#include <vector>
+
+#include "common/bit_cast.h"
+#include "common/bit_util.h"
+#include "common/settings.h"
+
+#include "video_core/renderer_metal/mtl_device.h"
+#include "video_core/renderer_metal/mtl_texture_cache.h"
+
+#include "video_core/engines/fermi_2d.h"
+#include "video_core/texture_cache/formatter.h"
+#include "video_core/texture_cache/samples_helper.h"
+#include "video_core/texture_cache/util.h"
+
+namespace Metal {
+
+using Tegra::Engines::Fermi2D;
+using Tegra::Texture::SwizzleSource;
+using Tegra::Texture::TextureMipmapFilter;
+using VideoCommon::BufferImageCopy;
+using VideoCommon::ImageFlagBits;
+using VideoCommon::ImageInfo;
+using VideoCommon::ImageType;
+using VideoCommon::SubresourceRange;
+using VideoCore::Surface::BytesPerBlock;
+using VideoCore::Surface::IsPixelFormatASTC;
+using VideoCore::Surface::IsPixelFormatInteger;
+using VideoCore::Surface::SurfaceType;
+
+TextureCacheRuntime::TextureCacheRuntime(const Device &device_)
+    : device{device_}, resolution{Settings::values.resolution_info} {}
+
+void TextureCacheRuntime::TickFrame() {}
+
+Image::Image(TextureCacheRuntime &runtime, const ImageInfo &info,
+             GPUVAddr gpu_addr_, VAddr cpu_addr_)
+    : VideoCommon::ImageBase(info, gpu_addr_, cpu_addr_) {
+  MTLTextureDescriptor *texture_descriptor =
+      [[MTLTextureDescriptor alloc] init];
+  // TODO: don't hardcode the format
+  texture_descriptor.pixelFormat = MTLPixelFormatRGBA8Unorm;
+  texture_descriptor.width = info.size.width;
+  texture_descriptor.height = info.size.height;
+
+  texture =
+      [runtime.device.GetDevice() newTextureWithDescriptor:texture_descriptor];
+}
+
+Image::~Image() { [texture release]; }
+
+ImageView::ImageView(TextureCacheRuntime &runtime,
+                     const VideoCommon::ImageViewInfo &info, ImageId image_id_,
+                     Image &image)
+    : VideoCommon::ImageViewBase{info, image.info, image_id_, image.gpu_addr} {
+  using Shader::TextureType;
+
+  texture = [image.GetHandle() retain];
+
+  // TODO: create texture view
+}
+
+ImageView::ImageView(TextureCacheRuntime &runtime,
+                     const VideoCommon::ImageViewInfo &info, ImageId image_id_,
+                     Image &image, const SlotVector<Image>& slot_imgs)
+    : ImageView(runtime, info, image_id_, image) {
+  // TODO: save slot images
+}
+
+ImageView::~ImageView() { [texture release]; }
+
+Sampler::Sampler(TextureCacheRuntime &runtime,
+                 const Tegra::Texture::TSCEntry &tsc) {
+  MTLSamplerDescriptor *sampler_descriptor =
+      [[MTLSamplerDescriptor alloc] init];
+
+  // TODO: configure the descriptor
+
+  sampler_state = [runtime.device.GetDevice()
+      newSamplerStateWithDescriptor:sampler_descriptor];
+}
+
+Framebuffer::Framebuffer(TextureCacheRuntime &runtime,
+                         std::span<ImageView *, NUM_RT> color_buffers,
+                         ImageView *depth_buffer,
+                         const VideoCommon::RenderTargets &key) {
+  CreateRenderPassDescriptor(runtime, color_buffers, depth_buffer,
+                             key.is_rescaled, key.size.width, key.size.height);
+}
+
+Framebuffer::~Framebuffer() = default;
+
+void Framebuffer::CreateRenderPassDescriptor(
+    TextureCacheRuntime &runtime, std::span<ImageView *, NUM_RT> color_buffers,
+    ImageView *depth_buffer, bool is_rescaled, size_t width, size_t height) {
+  render_pass = [MTLRenderPassDescriptor renderPassDescriptor];
+
+  for (size_t index = 0; index < NUM_RT; ++index) {
+    const ImageView *const color_buffer = color_buffers[index];
+    if (!color_buffer) {
+      continue;
+    }
+    // TODO: don't use index as attachment index
+    render_pass.colorAttachments[index].clearColor =
+        MTLClearColorMake(0.5, 1.0, 0.0, 1.0);
+    render_pass.colorAttachments[index].loadAction = MTLLoadActionClear;
+    render_pass.colorAttachments[index].storeAction = MTLStoreActionStore;
+    render_pass.colorAttachments[index].texture = color_buffer->GetHandle();
+  }
+  if (depth_buffer) {
+    render_pass.depthAttachment.clearDepth = 1.0;
+    render_pass.depthAttachment.loadAction = MTLLoadActionClear;
+    render_pass.depthAttachment.storeAction = MTLStoreActionStore;
+    render_pass.depthAttachment.texture = depth_buffer->GetHandle();
+  }
+}
+
+} // namespace Vulkan

src/video_core/renderer_metal/mtl_texture_cache_base.cpp

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "video_core/renderer_metal/mtl_texture_cache.h"
+#include "video_core/texture_cache/texture_cache.h"
+
+namespace VideoCommon {
+template class VideoCommon::TextureCache<Metal::TextureCacheParams>;
+}

src/video_core/renderer_metal/objc_bridge.h

@@ -9,14 +9,18 @@ typedef id<MTLDevice> MTLDevice_t;
 typedef id<MTLCommandQueue> MTLCommandQueue_t;
 typedef id<MTLCommandBuffer> MTLCommandBuffer_t;
 typedef id<MTLCommandEncoder> MTLCommandEncoder_t;
+typedef id<MTLBuffer> MTLBuffer_t;
 typedef id<MTLTexture> MTLTexture_t;
+typedef id<MTLSamplerState> MTLSamplerState_t;
 typedef id<CAMetalDrawable> CAMetalDrawable_t;
 #else
 typedef void* MTLDevice_t;
 typedef void* MTLCommandQueue_t;
 typedef void* MTLCommandBuffer_t;
 typedef void* MTLCommandEncoder_t;
+typedef void* MTLBuffer_t;
 typedef void* MTLTexture_t;
+typedef void* MTLSamplerState_t;
 typedef void MTLRenderPassDescriptor;
 typedef void CAMetalLayer;
 typedef void* CAMetalDrawable_t;

src/video_core/renderer_metal/renderer_metal.mm

@@ -16,7 +16,7 @@ RendererMetal::RendererMetal(Core::Frontend::EmuWindow& emu_window,
       command_recorder(device),
       swap_chain(device, command_recorder,
                  static_cast<const CAMetalLayer*>(render_window.GetWindowInfo().render_surface)),
-      rasterizer(gpu_, device, swap_chain) {}
+      rasterizer(gpu_, device, command_recorder, swap_chain) {}
 
 RendererMetal::~RendererMetal() = default;
 
@@ -25,9 +25,10 @@ void RendererMetal::Composite(std::span<const Tegra::FramebufferConfig> framebuf
         return;
     }
 
-    // HACK
+    // Ask the swap chain to get next drawable
     swap_chain.AcquireNextDrawable();
 
+    // TODO: copy the framebuffer to the drawable texture instead of this dummy render pass
     MTLRenderPassDescriptor* render_pass_descriptor = [MTLRenderPassDescriptor renderPassDescriptor];
     render_pass_descriptor.colorAttachments[0].clearColor = MTLClearColorMake(1.0, 0.5, 0.0, 1.0);
     render_pass_descriptor.colorAttachments[0].loadAction  = MTLLoadActionClear;
@@ -35,6 +36,7 @@ void RendererMetal::Composite(std::span<const Tegra::FramebufferConfig> framebuf
     render_pass_descriptor.colorAttachments[0].texture = swap_chain.GetDrawableTexture();
 
     command_recorder.BeginRenderPass(render_pass_descriptor);
+
     swap_chain.Present();
     command_recorder.Submit();