kc3-lang/angle/src/libANGLE/renderer/vulkan/RenderbufferVk.h

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• Hash : bb35bb4e
  Author :
  Date : 2019-10-29T17:17:04
  

  Vulkan: Implement simple case ANGLE_get_image.
  
  A couple cases are left unimplemented:
  
  Incomplete/unused Textures. This leads to a slightly more tricky
  implementation. Since we need to read back from the staging buffer
  we will need to flush the Image contents to a temporary buffer.
  
  Depth/stencil readback. Requires a more complex pixel packing
  step.
  
  3D/Cube/2D Array readback. Also requires a more complex packing
  step.
  
  Bug: angleproject:3944
  Change-Id: Ic5d9a606177ba7e3e5ab945feb5f555afa11741f
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1879964
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  

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• src/libANGLE/renderer/vulkan/RenderbufferVk.h

• //
  // Copyright 2016 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.
  //
  // RenderbufferVk.h:
  //    Defines the class interface for RenderbufferVk, implementing RenderbufferImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_RENDERBUFFERVK_H_
  #define LIBANGLE_RENDERER_VULKAN_RENDERBUFFERVK_H_
  
  #include "libANGLE/renderer/RenderbufferImpl.h"
  #include "libANGLE/renderer/vulkan/RenderTargetVk.h"
  #include "libANGLE/renderer/vulkan/vk_helpers.h"
  
  namespace rx
  {
  
  class RenderbufferVk : public RenderbufferImpl
  {
    public:
      RenderbufferVk(const gl::RenderbufferState &state);
      ~RenderbufferVk() override;
  
      void onDestroy(const gl::Context *context) override;
  
      angle::Result setStorage(const gl::Context *context,
                               GLenum internalformat,
                               size_t width,
                               size_t height) override;
      angle::Result setStorageMultisample(const gl::Context *context,
                                          size_t samples,
                                          GLenum internalformat,
                                          size_t width,
                                          size_t height) override;
      angle::Result setStorageEGLImageTarget(const gl::Context *context, egl::Image *image) override;
  
      angle::Result getAttachmentRenderTarget(const gl::Context *context,
                                              GLenum binding,
                                              const gl::ImageIndex &imageIndex,
                                              GLsizei samples,
                                              FramebufferAttachmentRenderTarget **rtOut) override;
  
      angle::Result initializeContents(const gl::Context *context,
                                       const gl::ImageIndex &imageIndex) override;
  
      vk::ImageHelper *getImage() const { return mImage; }
      void releaseOwnershipOfImage(const gl::Context *context);
  
      GLenum getColorReadFormat(const gl::Context *context) override;
      GLenum getColorReadType(const gl::Context *context) override;
  
      angle::Result getRenderbufferImage(const gl::Context *context,
                                         const gl::PixelPackState &packState,
                                         gl::Buffer *packBuffer,
                                         GLenum format,
                                         GLenum type,
                                         void *pixels) override;
  
    private:
      void releaseAndDeleteImage(ContextVk *contextVk);
      void releaseImage(ContextVk *contextVk);
  
      angle::Result setStorageImpl(const gl::Context *context,
                                   size_t samples,
                                   GLenum internalformat,
                                   size_t width,
                                   size_t height);
  
      const gl::InternalFormat &getImplementationSizedFormat() const;
  
      bool mOwnsImage;
      vk::ImageHelper *mImage;
      vk::ImageViewHelper mImageViews;
      RenderTargetVk mRenderTarget;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_RENDERBUFFERVK_H_
  

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