kc3-lang/angle/src/libANGLE/Renderbuffer.h

Branch : - branch - main - tag -

• Show log

  Commit

• Author : Geoff Lang
  Date : 2018-07-27 15:47:18
  Hash : 9d05b930
  Message : Don't store a ref from an EGL image to its source. ImageSiblings no longer inherit from RefCountObeject because they may be EGL or GL objects and should handle their own deletion. This can cause GL resources to outlive their contexts. When the GL resource is deleted, simply orphan the image. BUG=angleproject:2668 Change-Id: I4a5c12bbe6e725f946209f9b48345a4097c9c91c Reviewed-on: https://chromium-review.googlesource.com/1153601 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/Renderbuffer.h

• //
  // Copyright (c) 2002-2010 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.
  //
  
  // Renderbuffer.h: Defines the renderer-agnostic container class gl::Renderbuffer.
  // Implements GL renderbuffer objects and related functionality.
  // [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #ifndef LIBANGLE_RENDERBUFFER_H_
  #define LIBANGLE_RENDERBUFFER_H_
  
  #include "angle_gl.h"
  #include "common/angleutils.h"
  #include "libANGLE/Debug.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/FramebufferAttachment.h"
  #include "libANGLE/Image.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/RenderbufferImpl.h"
  
  namespace rx
  {
  class GLImplFactory;
  }  // namespace rx
  
  namespace gl
  {
  // A GL renderbuffer object is usually used as a depth or stencil buffer attachment
  // for a framebuffer object. The renderbuffer itself is a distinct GL object, see
  // FramebufferAttachment and Framebuffer for how they are applied to an FBO via an
  // attachment point.
  
  class RenderbufferState final : angle::NonCopyable
  {
    public:
      RenderbufferState();
      ~RenderbufferState();
  
      GLsizei getWidth() const;
      GLsizei getHeight() const;
      const Format &getFormat() const;
      GLsizei getSamples() const;
  
    private:
      friend class Renderbuffer;
  
      void update(GLsizei width,
                  GLsizei height,
                  const Format &format,
                  GLsizei samples,
                  InitState initState);
  
      GLsizei mWidth;
      GLsizei mHeight;
      Format mFormat;
      GLsizei mSamples;
  
      // For robust resource init.
      InitState mInitState;
  };
  
  class Renderbuffer final : public RefCountObject, public egl::ImageSibling, public LabeledObject
  {
    public:
      Renderbuffer(rx::GLImplFactory *implFactory, GLuint id);
      ~Renderbuffer() override;
  
      Error onDestroy(const Context *context) override;
  
      void setLabel(const std::string &label) override;
      const std::string &getLabel() const override;
  
      Error setStorage(const Context *context, GLenum internalformat, size_t width, size_t height);
      Error setStorageMultisample(const Context *context,
                                  size_t samples,
                                  GLenum internalformat,
                                  size_t width,
                                  size_t height);
      Error setStorageEGLImageTarget(const Context *context, egl::Image *imageTarget);
  
      rx::RenderbufferImpl *getImplementation() const;
  
      GLsizei getWidth() const;
      GLsizei getHeight() const;
      const Format &getFormat() const;
      GLsizei getSamples() const;
      GLuint getRedSize() const;
      GLuint getGreenSize() const;
      GLuint getBlueSize() const;
      GLuint getAlphaSize() const;
      GLuint getDepthSize() const;
      GLuint getStencilSize() const;
  
      // FramebufferAttachmentObject Impl
      Extents getAttachmentSize(const ImageIndex &imageIndex) const override;
      Format getAttachmentFormat(GLenum binding, const ImageIndex &imageIndex) const override;
      GLsizei getAttachmentSamples(const ImageIndex &imageIndex) const override;
  
      void onAttach(const Context *context) override;
      void onDetach(const Context *context) override;
      GLuint getId() const override;
  
      InitState initState(const ImageIndex &imageIndex) const override;
      void setInitState(const ImageIndex &imageIndex, InitState initState) override;
  
    private:
      rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override;
  
      RenderbufferState mState;
      std::unique_ptr<rx::RenderbufferImpl> mImplementation;
  
      std::string mLabel;
  };
  
  }  // namespace gl
  
  #endif   // LIBANGLE_RENDERBUFFER_H_