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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_IOSURFACE_MAC_H_
#define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_IOSURFACE_MAC_H_
#include <list>
#include "content/common/gpu/image_transport_surface_fbo_mac.h"
#include "ui/gl/gl_bindings.h"
// Note that this must be included after gl_bindings.h to avoid conflicts.
#include <OpenGL/CGLIOSurface.h>
namespace content {
// Allocate IOSurface-backed storage for an FBO image transport surface.
class IOSurfaceStorageProvider
: public ImageTransportSurfaceFBO::StorageProvider {
public:
IOSurfaceStorageProvider(ImageTransportSurfaceFBO* transport_surface);
virtual ~IOSurfaceStorageProvider();
// ImageTransportSurfaceFBO::StorageProvider implementation:
virtual gfx::Size GetRoundedSize(gfx::Size size) OVERRIDE;
virtual bool AllocateColorBufferStorage(
CGLContextObj context, GLuint texture,
gfx::Size pixel_size, float scale_factor) OVERRIDE;
virtual void FreeColorBufferStorage() OVERRIDE;
virtual void SwapBuffers(const gfx::Size& size, float scale_factor) OVERRIDE;
virtual void WillWriteToBackbuffer() OVERRIDE;
virtual void DiscardBackbuffer() OVERRIDE;
virtual void SwapBuffersAckedByBrowser() OVERRIDE;
private:
ImageTransportSurfaceFBO* transport_surface_;
base::ScopedCFTypeRef<IOSurfaceRef> io_surface_;
// The list of IOSurfaces that have been sent to the browser process but have
// not been opened in the browser process yet. This list should never have
// more than one entry.
std::list<base::ScopedCFTypeRef<IOSurfaceRef>> pending_swapped_surfaces_;
// The id of |io_surface_| or 0 if that's NULL.
IOSurfaceID io_surface_id_;
DISALLOW_COPY_AND_ASSIGN(IOSurfaceStorageProvider);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_MAC_H_
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