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

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• Hash : c1abf917
  Author :
  Date : 2017-10-03T15:08:33
  

  Fix leaking objects with UniqueObjectPointer.
  
  BUG=angleproject:2170
  
  Change-Id: Ie0473022c153c4b70f350cab0c208dd3a0670c40
  Reviewed-on: https://chromium-review.googlesource.com/691374
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/Surface.h

• //
  // Copyright (c) 2002-2014 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.
  //
  
  // Surface.h: Defines the egl::Surface class, representing a drawing surface
  // such as the client area of a window, including any back buffers.
  // Implements EGLSurface and related functionality. [EGL 1.4] section 2.2 page 3.
  
  #ifndef LIBANGLE_SURFACE_H_
  #define LIBANGLE_SURFACE_H_
  
  #include <EGL/egl.h>
  
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/FramebufferAttachment.h"
  #include "libANGLE/RefCountObject.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/SurfaceImpl.h"
  
  namespace gl
  {
  class Framebuffer;
  class Texture;
  }
  
  namespace rx
  {
  class EGLImplFactory;
  }
  
  namespace egl
  {
  class AttributeMap;
  class Display;
  struct Config;
  
  struct SurfaceState final : private angle::NonCopyable
  {
      SurfaceState(const egl::Config *configIn);
  
      gl::Framebuffer *defaultFramebuffer;
      const egl::Config *config;
  };
  
  class Surface : public gl::FramebufferAttachmentObject
  {
    public:
      rx::SurfaceImpl *getImplementation() const { return mImplementation; }
  
      EGLint getType() const;
  
      Error initialize(const Display *display);
      Error swap(const gl::Context *context);
      Error swapWithDamage(const gl::Context *context, EGLint *rects, EGLint n_rects);
      Error postSubBuffer(const gl::Context *context,
                          EGLint x,
                          EGLint y,
                          EGLint width,
                          EGLint height);
      Error querySurfacePointerANGLE(EGLint attribute, void **value);
      Error bindTexImage(const gl::Context *context, gl::Texture *texture, EGLint buffer);
      Error releaseTexImage(const gl::Context *context, EGLint buffer);
  
      Error getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc);
  
      EGLint isPostSubBufferSupported() const;
  
      void setSwapInterval(EGLint interval);
      Error setIsCurrent(const gl::Context *context, bool isCurrent);
      Error onDestroy(const Display *display);
  
      void setMipmapLevel(EGLint level);
      void setMultisampleResolve(EGLenum resolve);
      void setSwapBehavior(EGLenum behavior);
  
      const Config *getConfig() const;
  
      // width and height can change with client window resizing
      EGLint getWidth() const;
      EGLint getHeight() const;
      EGLint getPixelAspectRatio() const;
      EGLenum getRenderBuffer() const;
      EGLenum getSwapBehavior() const;
      EGLenum getTextureFormat() const;
      EGLenum getTextureTarget() const;
      bool getLargestPbuffer() const;
      EGLenum getGLColorspace() const;
      EGLenum getVGAlphaFormat() const;
      EGLenum getVGColorspace() const;
      bool getMipmapTexture() const;
      EGLint getMipmapLevel() const;
      EGLint getHorizontalResolution() const;
      EGLint getVerticalResolution() const;
      EGLenum getMultisampleResolve() const;
  
      gl::Texture *getBoundTexture() const { return mTexture.get(); }
      gl::Framebuffer *getDefaultFramebuffer() { return mState.defaultFramebuffer; }
  
      EGLint isFixedSize() const;
  
      // FramebufferAttachmentObject implementation
      gl::Extents getAttachmentSize(const gl::ImageIndex &imageIndex) const override;
      const gl::Format &getAttachmentFormat(GLenum binding,
                                            const gl::ImageIndex &imageIndex) const override;
      GLsizei getAttachmentSamples(const gl::ImageIndex &imageIndex) const override;
  
      void onAttach(const gl::Context *context) override {}
      void onDetach(const gl::Context *context) override {}
      GLuint getId() const override;
  
      bool flexibleSurfaceCompatibilityRequested() const
      {
          return mFlexibleSurfaceCompatibilityRequested;
      }
      EGLint getOrientation() const { return mOrientation; }
  
      bool directComposition() const { return mDirectComposition; }
  
      gl::InitState initState(const gl::ImageIndex &imageIndex) const override;
      void setInitState(const gl::ImageIndex &imageIndex, gl::InitState initState) override;
  
    protected:
      Surface(EGLint surfaceType, const egl::Config *config, const AttributeMap &attributes);
      virtual ~Surface();
      rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override { return mImplementation; }
  
      gl::Framebuffer *createDefaultFramebuffer(const Display *display);
  
      // ANGLE-only method, used internally
      friend class gl::Texture;
      void releaseTexImageFromTexture(const gl::Context *context);
  
      SurfaceState mState;
      rx::SurfaceImpl *mImplementation;
      int mCurrentCount;
      bool mDestroyed;
  
      EGLint mType;
  
      bool mPostSubBufferRequested;
      bool mFlexibleSurfaceCompatibilityRequested;
  
      bool mLargestPbuffer;
      EGLenum mGLColorspace;
      EGLenum mVGAlphaFormat;
      EGLenum mVGColorspace;
      bool mMipmapTexture;
      EGLint mMipmapLevel;
      EGLint mHorizontalResolution;
      EGLint mVerticalResolution;
      EGLenum mMultisampleResolve;
  
      bool mFixedSize;
      size_t mFixedWidth;
      size_t mFixedHeight;
  
      bool mDirectComposition;
  
      EGLenum mTextureFormat;
      EGLenum mTextureTarget;
  
      EGLint mPixelAspectRatio;      // Display aspect ratio
      EGLenum mRenderBuffer;         // Render buffer
      EGLenum mSwapBehavior;         // Buffer swap behavior
  
      EGLint mOrientation;
  
      gl::BindingPointer<gl::Texture> mTexture;
  
      gl::Format mBackFormat;
      gl::Format mDSFormat;
  
    private:
      Error destroyImpl(const Display *display);
  };
  
  class WindowSurface final : public Surface
  {
    public:
      WindowSurface(rx::EGLImplFactory *implFactory,
                    const Config *config,
                    EGLNativeWindowType window,
                    const AttributeMap &attribs);
      ~WindowSurface() override;
  };
  
  class PbufferSurface final : public Surface
  {
    public:
      PbufferSurface(rx::EGLImplFactory *implFactory,
                     const Config *config,
                     const AttributeMap &attribs);
      PbufferSurface(rx::EGLImplFactory *implFactory,
                     const Config *config,
                     EGLenum buftype,
                     EGLClientBuffer clientBuffer,
                     const AttributeMap &attribs);
  
    protected:
      ~PbufferSurface() override;
  };
  
  class PixmapSurface final : public Surface
  {
    public:
      PixmapSurface(rx::EGLImplFactory *implFactory,
                    const Config *config,
                    NativePixmapType nativePixmap,
                    const AttributeMap &attribs);
  
    protected:
      ~PixmapSurface() override;
  };
  
  class SurfaceDeleter final
  {
    public:
      SurfaceDeleter(const Display *display);
      ~SurfaceDeleter();
      void operator()(Surface *surface);
  
    private:
      const Display *mDisplay;
  };
  
  using SurfacePointer = angle::UniqueObjectPointerBase<Surface, SurfaceDeleter>;
  
  }  // namespace egl
  
  #endif   // LIBANGLE_SURFACE_H_
  

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