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

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• Author : Corentin Wallez
  Date : 2015-08-07 14:39:22
  Hash : 51706eae
  Message : Make FramebufferAttachmentObject not refcountable Re-land with a fix for an unitialized variable Instead the refcount is done via callbacks. This allows Surface to ignore this refcounting which will be useful in a follow-up CL. BUG=angleproject:891 Change-Id: I1925ccaa4ce7b502b33088660d31c404b8313cb5 Reviewed-on: https://chromium-review.googlesource.com/293712 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>

• src/libANGLE/Image.h

• //
  // Copyright (c) 2015 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.
  //
  
  // Image.h: Defines the egl::Image class representing the EGLimage object.
  
  #ifndef LIBANGLE_IMAGE_H_
  #define LIBANGLE_IMAGE_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/AttributeMap.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/RefCountObject.h"
  
  #include <set>
  
  namespace rx
  {
  class ImageImpl;
  }
  
  namespace egl
  {
  class Image;
  
  class ImageSibling : public RefCountObject
  {
    public:
      ImageSibling(GLuint id);
      virtual ~ImageSibling();
  
    protected:
      // Set the image target of this sibling
      void setTargetImage(egl::Image *imageTarget);
  
      // Orphan all EGL image sources and targets
      gl::Error orphanImages();
  
    private:
      friend class Image;
  
      // Called from Image only to add a new source image
      void addImageSource(egl::Image *imageSource);
  
      // Called from Image only to remove a source image when the Image is being deleted
      void removeImageSource(egl::Image *imageSource);
  
      std::set<Image *> mSourcesOf;
      BindingPointer<Image> mTargetOf;
  };
  
  class Image final : public RefCountObject
  {
    public:
      Image(rx::ImageImpl *impl, EGLenum target, ImageSibling *buffer, const AttributeMap &attribs);
      ~Image();
  
      GLenum getInternalFormat() const;
      size_t getWidth() const;
      size_t getHeight() const;
      size_t getSamples() const;
  
      rx::ImageImpl *getImplementation();
      const rx::ImageImpl *getImplementation() const;
  
    private:
      friend class ImageSibling;
  
      // Called from ImageSibling only notify the image that a new target sibling exists for state
      // tracking.
      void addTargetSibling(ImageSibling *sibling);
  
      // Called from ImageSibling only to notify the image that a sibling (source or target) has
      // been respecified and state tracking should be updated.
      gl::Error orphanSibling(ImageSibling *sibling);
  
      rx::ImageImpl *mImplementation;
  
      GLenum mInternalFormat;
      size_t mWidth;
      size_t mHeight;
      size_t mSamples;
  
      BindingPointer<ImageSibling> mSource;
      std::set<ImageSibling *> mTargets;
  };
  }
  
  #endif  // LIBANGLE_IMAGE_H_