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

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• Hash : 3c0b2787
  Author :
  Date : 2025-05-17T19:36:42
  

  WebGPU: Implement EGLImages
  
  Implement EGLImages for WebGPU. Cube maps, and non-zero mip sources
  are not supported yet.
  
  Bug: angleproject:418022112
  Change-Id: I59955aee907167a1829f870b7d0730a6269d814c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6557130
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/wgpu/RenderbufferWgpu.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.
  //
  // RenderbufferWgpu.h:
  //    Defines the class interface for RenderbufferWgpu, implementing RenderbufferImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_WGPU_RENDERBUFFERWGPU_H_
  #define LIBANGLE_RENDERER_WGPU_RENDERBUFFERWGPU_H_
  
  #include "libANGLE/renderer/RenderbufferImpl.h"
  #include "libANGLE/renderer/wgpu/RenderTargetWgpu.h"
  #include "libANGLE/renderer/wgpu/wgpu_helpers.h"
  
  namespace rx
  {
  
  class RenderbufferWgpu : public RenderbufferImpl, public angle::ObserverInterface
  {
    public:
      RenderbufferWgpu(const gl::RenderbufferState &state);
      ~RenderbufferWgpu() override;
  
      void onDestroy(const gl::Context *context) override;
  
      angle::Result setStorage(const gl::Context *context,
                               GLenum internalformat,
                               GLsizei width,
                               GLsizei height) override;
      angle::Result setStorageMultisample(const gl::Context *context,
                                          GLsizei samples,
                                          GLenum internalformat,
                                          GLsizei width,
                                          GLsizei height,
                                          gl::MultisamplingMode mode) override;
  
      angle::Result setStorageEGLImageTarget(const gl::Context *context, egl::Image *image) override;
  
      angle::Result initializeContents(const gl::Context *context,
                                       GLenum binding,
                                       const gl::ImageIndex &imageIndex) override;
  
      angle::Result getAttachmentRenderTarget(const gl::Context *context,
                                              GLenum binding,
                                              const gl::ImageIndex &imageIndex,
                                              GLsizei samples,
                                              FramebufferAttachmentRenderTarget **rtOut) override;
  
      void releaseOwnershipOfImage(const gl::Context *context);
      webgpu::ImageHelper *getImage() const { return mImage; }
  
      // We monitor the ImageHelper and set dirty bits if the ImageHelper changes. This can
      // support changes in the ImageHelper even outside the RenderbufferWgpu class.
      void onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message) override;
  
    private:
      void setImageHelper(webgpu::ImageHelper *imageHelper, bool ownsImageHelper);
  
      bool mOwnsImage             = false;
      webgpu::ImageHelper *mImage = nullptr;
      RenderTargetWgpu mRenderTarget;
  
      angle::ObserverBinding mImageObserverBinding;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_WGPU_RENDERBUFFERWGPU_H_
  

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