kc3-lang/angle/src/libANGLE/renderer/gl/cgl/WindowSurfaceCGL.h

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• Hash : 91dc5da8
  Author :
  Date : 2019-08-21T15:17:50
  

  WebKit requires "Web" as prefix to Objective-C class names
  
  WebKit's build process requires that every Objective-C class name begin with the
  prefix "Web". While this is unfortunate, we only have one Objective-C class in
  the codebase that needs to change so we might as well just do it.
  
  Bug: angleproject:3439
  Change-Id: I07d1f5478b067f680971d0f24befe2f63651c735
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1764649
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Commit-Queue: James Darpinian <jdarpinian@chromium.org>
  

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• src/libANGLE/renderer/gl/cgl/WindowSurfaceCGL.h

• //
  // Copyright 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.
  //
  
  // WindowSurfaceCGL.h: CGL implementation of egl::Surface for windows
  
  #ifndef LIBANGLE_RENDERER_GL_CGL_WINDOWSURFACECGL_H_
  #define LIBANGLE_RENDERER_GL_CGL_WINDOWSURFACECGL_H_
  
  #include "libANGLE/renderer/gl/SurfaceGL.h"
  
  struct _CGLContextObject;
  typedef _CGLContextObject *CGLContextObj;
  @class CALayer;
  struct __IOSurface;
  typedef __IOSurface *IOSurfaceRef;
  
  // WebKit's build process requires that every Objective-C class name has the prefix "Web".
  @class WebSwapLayer;
  
  namespace rx
  {
  
  class DisplayCGL;
  class FramebufferGL;
  class FunctionsGL;
  class RendererGL;
  class StateManagerGL;
  
  struct SharedSwapState
  {
      struct SwapTexture
      {
          GLuint texture;
          unsigned int width;
          unsigned int height;
          uint64_t swapId;
      };
  
      SwapTexture textures[3];
  
      // This code path is not going to be used by Chrome so we take the liberty
      // to use pthreads directly instead of using mutexes and condition variables
      // via the Platform API.
      pthread_mutex_t mutex;
      // The following members should be accessed only when holding the mutex
      // (or doing construction / destruction)
      SwapTexture *beingRendered;
      SwapTexture *lastRendered;
      SwapTexture *beingPresented;
  };
  
  class WindowSurfaceCGL : public SurfaceGL
  {
    public:
      WindowSurfaceCGL(const egl::SurfaceState &state,
                       RendererGL *renderer,
                       EGLNativeWindowType layer,
                       CGLContextObj context);
      ~WindowSurfaceCGL() override;
  
      egl::Error initialize(const egl::Display *display) override;
      egl::Error makeCurrent(const gl::Context *context) override;
  
      egl::Error swap(const gl::Context *context) override;
      egl::Error postSubBuffer(const gl::Context *context,
                               EGLint x,
                               EGLint y,
                               EGLint width,
                               EGLint height) override;
      egl::Error querySurfacePointerANGLE(EGLint attribute, void **value) override;
      egl::Error bindTexImage(const gl::Context *context,
                              gl::Texture *texture,
                              EGLint buffer) override;
      egl::Error releaseTexImage(const gl::Context *context, EGLint buffer) override;
      void setSwapInterval(EGLint interval) override;
  
      EGLint getWidth() const override;
      EGLint getHeight() const override;
  
      EGLint isPostSubBufferSupported() const override;
      EGLint getSwapBehavior() const override;
  
      FramebufferImpl *createDefaultFramebuffer(const gl::Context *context,
                                                const gl::FramebufferState &state) override;
  
    private:
      WebSwapLayer *mSwapLayer;
      SharedSwapState mSwapState;
      uint64_t mCurrentSwapId;
  
      CALayer *mLayer;
      CGLContextObj mContext;
      const FunctionsGL *mFunctions;
      StateManagerGL *mStateManager;
  
      GLuint mDSRenderbuffer;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GL_CGL_WINDOWSURFACECGL_H_
  

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