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

• Show log

  Commit

• Hash : d444255a
  Author :
  Date : 2018-02-27T22:03:47
  

  Refactor signal utils into Observer pattern.
  
  These types were over-generalized. All use cases featured
  arrays of resources attached to single parent resources. The
  channel ID is sufficient to identify the child resource in the
  parent, and having variadic template arguments wasn't necessary.
  
  Futhermore we can rename these types to use the common Observer
  pattern. This should make them more readable to new developers.
  
  Also update some classes to inherit from Subject instead of
  having a member Subject. This cleans up the code in a few places.
  
  This should lead to a simpler refactor to allow dependent dirty
  bits notifications in the Vulkan back-end.
  
  In the following patch the signal_utils files will be renamed. They
  are not renamed in this patch to ensure git history is preserved.
  
  Bug: angleproject:2372
  Change-Id: I17a3f2c8d92afd4bb3cba2d378c3a2e8a6d7fb11
  Reviewed-on: https://chromium-review.googlesource.com/936690
  Reviewed-by: Luc Ferron <lucferron@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

Download

• 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/AttributeMap.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 Display;
  struct Config;
  
  struct SurfaceState final : private angle::NonCopyable
  {
      SurfaceState(const egl::Config *configIn, const AttributeMap &attributesIn);
  
      gl::Framebuffer *defaultFramebuffer;
      const egl::Config *config;
      AttributeMap attributes;
  };
  
  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;
  
      bool isRobustResourceInitEnabled() const { return mRobustResourceInitialization; }
  
      const gl::Format &getBindTexImageFormat() const { return mColorFormat; }
  
    protected:
      Surface(EGLint surfaceType,
              const egl::Config *config,
              const AttributeMap &attributes,
              EGLenum buftype = EGL_NONE);
      ~Surface() override;
      rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override;
  
      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;
      EGLenum mBuftype;
  
      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;
  
      bool mRobustResourceInitialization;
  
      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 mColorFormat;
      gl::Format mDSFormat;
  
    private:
      Error destroyImpl(const Display *display);
  
      void postSwap(const gl::Context *context);
  
      gl::InitState mInitState;
  };
  
  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_
  

Download