kc3-lang/angle/src/libANGLE/renderer/metal/DisplayMtl.h

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• Hash : 9b00af52
  Author :
  Date : 2023-02-01T11:10:32
  

  Metal: Add an in-memory MTLLibrary cache.
  
  Add a small cache for (msl + compile parameters) -> MTLLibrary at the
  egl::Display level. In regular executions of Chrome, the same shaders
  (particularly vertex) are compiled multiple times in different programs.
  
  Tested for a regular Chrome startup + open wikipedia + motionmark 1.2:
  112/282 (40%) cache hits.
  
  Several different caching methods were profiled (LinkProgram perf test)
   - struct key with std::map                             : 303309
   - struct key with std::unordered_map                   : 308090
   - binary blob key with std::map                        : 263595
   - binary blob key with std::unordered_map              : 286051
   - struct key + is_transparent with std::unordered_map  : 304877
   - struct key + is_transparent with absl::flat_hash_map : 335686
  
  Using is_transparent allows us to search the hash map without
  copying the shader source string to construct the key structure.
  
  Bug: chromium:1385510
  Change-Id: Ieec4ba526fe286276a4af7114d89cde32a8f9e1d
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4214012
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  

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• src/libANGLE/renderer/metal/DisplayMtl.h

• //
  // Copyright 2019 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // DisplayMtl.h:
  //    Defines the class interface for DisplayMtl, implementing DisplayImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_METAL_DISPLAYMTL_H_
  #define LIBANGLE_RENDERER_METAL_DISPLAYMTL_H_
  
  #include "common/PackedEnums.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/DisplayImpl.h"
  #include "libANGLE/renderer/metal/mtl_command_buffer.h"
  #include "libANGLE/renderer/metal/mtl_context_device.h"
  #include "libANGLE/renderer/metal/mtl_format_utils.h"
  #include "libANGLE/renderer/metal/mtl_library_cache.h"
  #include "libANGLE/renderer/metal/mtl_render_utils.h"
  #include "libANGLE/renderer/metal/mtl_state_cache.h"
  #include "libANGLE/renderer/metal/mtl_utils.h"
  #include "platform/FeaturesMtl_autogen.h"
  
  namespace egl
  {
  class Surface;
  }
  
  namespace rx
  {
  class ShareGroupMtl : public ShareGroupImpl
  {};
  
  class ContextMtl;
  
  struct DefaultShaderAsyncInfoMtl;
  
  class DisplayMtl : public DisplayImpl
  {
    public:
      DisplayMtl(const egl::DisplayState &state);
      ~DisplayMtl() override;
  
      egl::Error initialize(egl::Display *display) override;
      void terminate() override;
  
      egl::Display *getDisplay() const { return mDisplay; }
  
      bool testDeviceLost() override;
      egl::Error restoreLostDevice(const egl::Display *display) override;
  
      std::string getRendererDescription() override;
      std::string getVendorString() override;
      std::string getVersionString(bool includeFullVersion) override;
  
      DeviceImpl *createDevice() override;
  
      egl::Error waitClient(const gl::Context *context) override;
      egl::Error waitNative(const gl::Context *context, EGLint engine) override;
  
      egl::Error waitUntilWorkScheduled() override;
  
      SurfaceImpl *createWindowSurface(const egl::SurfaceState &state,
                                       EGLNativeWindowType window,
                                       const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPbufferSurface(const egl::SurfaceState &state,
                                        const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPbufferFromClientBuffer(const egl::SurfaceState &state,
                                                 EGLenum buftype,
                                                 EGLClientBuffer clientBuffer,
                                                 const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPixmapSurface(const egl::SurfaceState &state,
                                       NativePixmapType nativePixmap,
                                       const egl::AttributeMap &attribs) override;
  
      ImageImpl *createImage(const egl::ImageState &state,
                             const gl::Context *context,
                             EGLenum target,
                             const egl::AttributeMap &attribs) override;
  
      ContextImpl *createContext(const gl::State &state,
                                 gl::ErrorSet *errorSet,
                                 const egl::Config *configuration,
                                 const gl::Context *shareContext,
                                 const egl::AttributeMap &attribs) override;
  
      StreamProducerImpl *createStreamProducerD3DTexture(egl::Stream::ConsumerType consumerType,
                                                         const egl::AttributeMap &attribs) override;
  
      ShareGroupImpl *createShareGroup() override;
  
      ExternalImageSiblingImpl *createExternalImageSibling(const gl::Context *context,
                                                           EGLenum target,
                                                           EGLClientBuffer buffer,
                                                           const egl::AttributeMap &attribs) override;
      gl::Version getMaxSupportedESVersion() const override;
      gl::Version getMaxConformantESVersion() const override;
      Optional<gl::Version> getMaxSupportedDesktopVersion() const override;
  
      EGLSyncImpl *createSync(const egl::AttributeMap &attribs) override;
  
      egl::Error makeCurrent(egl::Display *display,
                             egl::Surface *drawSurface,
                             egl::Surface *readSurface,
                             gl::Context *context) override;
  
      void populateFeatureList(angle::FeatureList *features) override;
  
      bool isValidNativeWindow(EGLNativeWindowType window) const override;
  
      egl::Error validateClientBuffer(const egl::Config *configuration,
                                      EGLenum buftype,
                                      EGLClientBuffer clientBuffer,
                                      const egl::AttributeMap &attribs) const override;
  
      egl::Error validateImageClientBuffer(const gl::Context *context,
                                           EGLenum target,
                                           EGLClientBuffer clientBuffer,
                                           const egl::AttributeMap &attribs) const override;
  
      egl::ConfigSet generateConfigs() override;
  
      gl::Caps getNativeCaps() const;
      const gl::TextureCapsMap &getNativeTextureCaps() const;
      const gl::Extensions &getNativeExtensions() const;
      const gl::Limitations &getNativeLimitations() const;
      const ShPixelLocalStorageOptions &getNativePixelLocalStorageOptions() const;
      const angle::FeaturesMtl &getFeatures() const { return mFeatures; }
  
      // Check whether either of the specified iOS or Mac GPU family is supported
      bool supportsEitherGPUFamily(uint8_t iOSFamily, uint8_t macFamily) const;
      bool supportsAppleGPUFamily(uint8_t iOSFamily) const;
      bool supportsMacGPUFamily(uint8_t macFamily) const;
      bool supportsDepth24Stencil8PixelFormat() const;
      bool supports32BitFloatFiltering() const;
      bool isAMD() const;
      bool isIntel() const;
      bool isNVIDIA() const;
      bool isSimulator() const;
  
      id<MTLDevice> getMetalDevice() const { return mMetalDevice; }
  
      mtl::CommandQueue &cmdQueue() { return mCmdQueue; }
      const mtl::FormatTable &getFormatTable() const { return mFormatTable; }
      mtl::RenderUtils &getUtils() { return mUtils; }
      mtl::StateCache &getStateCache() { return mStateCache; }
      mtl::LibraryCache &getLibraryCache() { return mLibraryCache; }
      uint32_t getMaxColorTargetBits() { return mMaxColorTargetBits; }
      bool hasFragmentMemoryBarriers() const { return mHasFragmentMemoryBarriers; }
  
      id<MTLLibrary> getDefaultShadersLib();
  
      const mtl::Format &getPixelFormat(angle::FormatID angleFormatId) const
      {
          return mFormatTable.getPixelFormat(angleFormatId);
      }
      const mtl::FormatCaps &getNativeFormatCaps(MTLPixelFormat mtlFormat) const
      {
          return mFormatTable.getNativeFormatCaps(mtlFormat);
      }
  
      // See mtl::FormatTable::getVertexFormat()
      const mtl::VertexFormat &getVertexFormat(angle::FormatID angleFormatId,
                                               bool tightlyPacked) const
      {
          return mFormatTable.getVertexFormat(angleFormatId, tightlyPacked);
      }
  #if ANGLE_MTL_EVENT_AVAILABLE
      mtl::AutoObjCObj<MTLSharedEventListener> getOrCreateSharedEventListener();
  #endif
  
    protected:
      void generateExtensions(egl::DisplayExtensions *outExtensions) const override;
      void generateCaps(egl::Caps *outCaps) const override;
  
    private:
      angle::Result initializeImpl(egl::Display *display);
      void ensureCapsInitialized() const;
      void initializeCaps() const;
      void initializeExtensions() const;
      void initializeTextureCaps() const;
      void initializeFeatures();
      void initializeLimitations();
      EGLenum EGLDrawingBufferTextureTarget();
      mtl::AutoObjCPtr<id<MTLDevice>> getMetalDeviceMatchingAttribute(
          const egl::AttributeMap &attribs);
      angle::Result initializeShaderLibrary();
  
      egl::Display *mDisplay;
  
      mtl::AutoObjCPtr<id<MTLDevice>> mMetalDevice = nil;
      uint32_t mMetalDeviceVendorId                = 0;
  
      mtl::CommandQueue mCmdQueue;
  
      mutable mtl::FormatTable mFormatTable;
      mtl::StateCache mStateCache;
      mtl::LibraryCache mLibraryCache;
      mtl::RenderUtils mUtils;
  
      // Built-in Shaders
      std::shared_ptr<DefaultShaderAsyncInfoMtl> mDefaultShadersAsyncInfo;
  #if ANGLE_MTL_EVENT_AVAILABLE
      mtl::AutoObjCObj<MTLSharedEventListener> mSharedEventListener;
  #endif
  
      mutable bool mCapsInitialized;
      mutable gl::TextureCapsMap mNativeTextureCaps;
      mutable gl::Extensions mNativeExtensions;
      mutable gl::Caps mNativeCaps;
      mutable gl::Limitations mNativeLimitations;
      mutable ShPixelLocalStorageOptions mNativePLSOptions;
      mutable uint32_t mMaxColorTargetBits = 0;
      mutable bool mHasFragmentMemoryBarriers;
  
      angle::FeaturesMtl mFeatures;
  };
  
  }  // namespace rx
  
  #endif /* LIBANGLE_RENDERER_METAL_DISPLAYMTL_H_ */
  

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