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// Copyright 2012 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 CC_SOFTWARE_OUTPUT_DEVICE_H_
#define CC_SOFTWARE_OUTPUT_DEVICE_H_
#include "third_party/WebKit/Source/Platform/chromium/public/WebImage.h"
#include "ui/gfx/size.h"
namespace cc {
// This is a "tear-off" class providing software drawing support to
// OutputSurface, such as to a platform-provided window framebuffer.
class SoftwareOutputDevice {
public:
virtual ~SoftwareOutputDevice() {}
// Lock the framebuffer and return a pointer to a WebImage referring to its
// pixels. Set forWrite if you intend to change the pixels. Readback
// is supported whether or not forWrite is set.
// TODO(danakj): Switch this from WebImage to a Skia type.
virtual WebKit::WebImage* Lock(bool forWrite) = 0;
virtual void Unlock() = 0;
virtual void DidChangeViewportSize(gfx::Size) = 0;
};
} // namespace cc
#endif // CC_SOFTWARE_OUTPUT_DEVICE_H_
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