1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_IOSURFACE_MAC_H_ 6#define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_IOSURFACE_MAC_H_ 7 8#include <list> 9 10#include "content/common/gpu/image_transport_surface_fbo_mac.h" 11#include "ui/gl/gl_bindings.h" 12 13// Note that this must be included after gl_bindings.h to avoid conflicts. 14#include <OpenGL/CGLIOSurface.h> 15 16namespace content { 17 18// Allocate IOSurface-backed storage for an FBO image transport surface. 19class IOSurfaceStorageProvider 20 : public ImageTransportSurfaceFBO::StorageProvider { 21 public: 22 IOSurfaceStorageProvider(ImageTransportSurfaceFBO* transport_surface); 23 virtual ~IOSurfaceStorageProvider(); 24 25 // ImageTransportSurfaceFBO::StorageProvider implementation: 26 virtual gfx::Size GetRoundedSize(gfx::Size size) OVERRIDE; 27 virtual bool AllocateColorBufferStorage( 28 CGLContextObj context, GLuint texture, 29 gfx::Size pixel_size, float scale_factor) OVERRIDE; 30 virtual void FreeColorBufferStorage() OVERRIDE; 31 virtual void SwapBuffers(const gfx::Size& size, float scale_factor) OVERRIDE; 32 virtual void WillWriteToBackbuffer() OVERRIDE; 33 virtual void DiscardBackbuffer() OVERRIDE; 34 virtual void SwapBuffersAckedByBrowser() OVERRIDE; 35 36 private: 37 ImageTransportSurfaceFBO* transport_surface_; 38 39 base::ScopedCFTypeRef<IOSurfaceRef> io_surface_; 40 41 // The list of IOSurfaces that have been sent to the browser process but have 42 // not been opened in the browser process yet. This list should never have 43 // more than one entry. 44 std::list<base::ScopedCFTypeRef<IOSurfaceRef>> pending_swapped_surfaces_; 45 46 // The id of |io_surface_| or 0 if that's NULL. 47 IOSurfaceID io_surface_id_; 48 49 DISALLOW_COPY_AND_ASSIGN(IOSurfaceStorageProvider); 50}; 51 52} // namespace content 53 54#endif // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_MAC_H_ 55