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

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• Hash : d75dd26c
  Author :
  Date : 2017-04-20T17:01:19
  

  Make ImageSibling inherit from FramebufferAttachment.
  
  Only currently Renderbuffers and Textures can be bound with images.
  This makes the relationship explicit, and also ensures that an image
  sibling can determine if it's been initialized or not, which is
  important for the robust resource init extension with Textures and
  EGLImages.
  
  BUG=angleproject:1635
  
  Change-Id: Ie05319cfbfda50f1497cab3f0b9ca64e1bff8955
  Reviewed-on: https://chromium-review.googlesource.com/469154
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• 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 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 Renderbuffer final : public egl::ImageSibling,
                             public LabeledObject
  {
    public:
      Renderbuffer(rx::RenderbufferImpl *impl, GLuint id);
      virtual ~Renderbuffer();
  
      void destroy(const Context *context) override {}
  
      void setLabel(const std::string &label) override;
      const std::string &getLabel() const override;
  
      Error setStorage(GLenum internalformat, size_t width, size_t height);
      Error setStorageMultisample(size_t samples, GLenum internalformat, size_t width, size_t height);
      Error setStorageEGLImageTarget(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;
      const Format &getAttachmentFormat(GLenum /*binding*/,
                                        const ImageIndex & /*imageIndex*/) const override
      {
          return getFormat();
      }
      GLsizei getAttachmentSamples(const ImageIndex & /*imageIndex*/) const override
      {
          return getSamples();
      }
  
      void onAttach() override;
      void onDetach() override;
      GLuint getId() const override;
  
    private:
      rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override { return mRenderbuffer; }
  
      rx::RenderbufferImpl *mRenderbuffer;
  
      std::string mLabel;
  
      GLsizei mWidth;
      GLsizei mHeight;
      Format mFormat;
      GLsizei mSamples;
  };
  
  }
  
  #endif   // LIBANGLE_RENDERBUFFER_H_
  

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