kc3-lang/angle/src/libANGLE/renderer/wgpu/DisplayWgpu.h

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• Hash : 85e2e6a9
  Author :
  Date : 2024-05-08T12:31:37
  

  WebGPU: Add Window and Pbuffer surfaces.
  
  Bug: angleproject:342213844
  Change-Id: I58465bdf895b4bab63ec3c74e326c6be4827bf60
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5525974
  Reviewed-by: Matthew Denton <mpdenton@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/wgpu/DisplayWgpu.h

• //
  // Copyright 2024 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.
  //
  // DisplayWgpu.h:
  //    Defines the class interface for DisplayWgpu, implementing DisplayImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_WGPU_DISPLAYWGPU_H_
  #define LIBANGLE_RENDERER_WGPU_DISPLAYWGPU_H_
  
  #include <dawn/native/DawnNative.h>
  #include <dawn/webgpu_cpp.h>
  
  #include "libANGLE/renderer/DisplayImpl.h"
  #include "libANGLE/renderer/ShareGroupImpl.h"
  
  namespace rx
  {
  class ShareGroupWgpu : public ShareGroupImpl
  {
    public:
      ShareGroupWgpu(const egl::ShareGroupState &state) : ShareGroupImpl(state) {}
  };
  
  class AllocationTrackerWgpu;
  
  class DisplayWgpu : public DisplayImpl
  {
    public:
      DisplayWgpu(const egl::DisplayState &state);
      ~DisplayWgpu() override;
  
      egl::Error initialize(egl::Display *display) override;
      void terminate() override;
  
      egl::Error makeCurrent(egl::Display *display,
                             egl::Surface *drawSurface,
                             egl::Surface *readSurface,
                             gl::Context *context) override;
  
      egl::ConfigSet generateConfigs() override;
  
      bool testDeviceLost() override;
      egl::Error restoreLostDevice(const egl::Display *display) override;
  
      bool isValidNativeWindow(EGLNativeWindowType window) const 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;
      gl::Version getMaxSupportedESVersion() const override;
      gl::Version getMaxConformantESVersion() const override;
      Optional<gl::Version> getMaxSupportedDesktopVersion() const 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 buffer,
                                                 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(const egl::ShareGroupState &state) override;
  
      void populateFeatureList(angle::FeatureList *features) override {}
  
      wgpu::Adapter &getAdapter() { return mAdapter; }
      wgpu::Device &getDevice() { return mDevice; }
      wgpu::Queue &getQueue() { return mQueue; }
      wgpu::Instance &getInstance() { return mInstance; }
  
      std::map<EGLNativeWindowType, wgpu::Surface> &getSurfaceCache() { return mSurfaceCache; }
  
    private:
      void generateExtensions(egl::DisplayExtensions *outExtensions) const override;
      void generateCaps(egl::Caps *outCaps) const override;
  
      egl::Error createWgpuDevice();
  
      wgpu::Adapter mAdapter;
      wgpu::Instance mInstance;
      wgpu::Device mDevice;
      wgpu::Queue mQueue;
  
      // http://anglebug.com/342213844
      // Dawn currently holds references to the internal swap chains for an unknown amount of time
      // after destroying a surface and can fail to create a new swap chain for the same window.
      // ANGLE tests re-create EGL surfaces for the same window each test. As a workaround, cache the
      // wgpu::Surface created for each window for the lifetime of the display.
      std::map<EGLNativeWindowType, wgpu::Surface> mSurfaceCache;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_WGPU_DISPLAYWGPU_H_
  

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