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

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• Hash : 1e494cae
  Author :
  Date : 2020-10-07T19:26:01
  

  Vulkan: Add support for EXT_copy_image
  
  Add support for GL_EXT_copy_image which allows
  image data transfer between image objects.
  This is implemented by using the vkCmdCopyImage
  API call.
  
  Bug: angleproject:3593
  Test: dEQP-GLES31.functional.copy_image.*
  Change-Id: I30a34a8711b5d2e5834064d7453e03d6ec0df478
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2393955
  Commit-Queue: Brandon Schade <b.schade@samsung.com>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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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 angle::ObserverInterface
  {
    public:
      RenderbufferVk(const gl::RenderbufferState &state);
      ~RenderbufferVk() 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 copyRenderbufferSubData(const gl::Context *context,
                                            const gl::Renderbuffer *srcBuffer,
                                            GLint srcLevel,
                                            GLint srcX,
                                            GLint srcY,
                                            GLint srcZ,
                                            GLint dstLevel,
                                            GLint dstX,
                                            GLint dstY,
                                            GLint dstZ,
                                            GLsizei srcWidth,
                                            GLsizei srcHeight,
                                            GLsizei srcDepth) override;
  
      angle::Result copyTextureSubData(const gl::Context *context,
                                       const gl::Texture *srcTexture,
                                       GLint srcLevel,
                                       GLint srcX,
                                       GLint srcY,
                                       GLint srcZ,
                                       GLint dstLevel,
                                       GLint dstX,
                                       GLint dstY,
                                       GLint dstZ,
                                       GLsizei srcWidth,
                                       GLsizei srcHeight,
                                       GLsizei srcDepth) 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;
  
      angle::Result ensureImageInitialized(const gl::Context *context);
  
    private:
      void releaseAndDeleteImage(ContextVk *contextVk);
      void releaseImage(ContextVk *contextVk);
  
      angle::Result setStorageImpl(const gl::Context *context,
                                   GLsizei samples,
                                   GLenum internalformat,
                                   GLsizei width,
                                   GLsizei height,
                                   gl::MultisamplingMode mode);
  
      const gl::InternalFormat &getImplementationSizedFormat() const;
  
      // We monitor the staging buffer for changes. This handles staged data from outside this class.
      void onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message) override;
  
      bool mOwnsImage;
  
      // |mOwnsImage| indicates that |RenderbufferVk| owns the image.  Otherwise, this is a weak
      // pointer shared with another class.  Due to this sharing, for example through EGL images, the
      // image must always be dynamically allocated as the renderbuffer can release ownership for
      // example and it can be transferred to another |RenderbufferVk|.
      vk::ImageHelper *mImage;
      vk::ImageViewHelper mImageViews;
  
      // If renderbuffer is created through the EXT_multisampled_render_to_texture API, it is expected
      // that all rendering is done multisampled during the renderpass, and is automatically resolved
      // (into |mImage|) and discarded afterwards.  |mMultisampledImage| is the implicit image that
      // contains the multisampled data.
      vk::ImageHelper mMultisampledImage;
      vk::ImageViewHelper mMultisampledImageViews;
  
      RenderTargetVk mRenderTarget;
  
      angle::ObserverBinding mImageObserverBinding;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_RENDERBUFFERVK_H_
  

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