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// Copyright (c) 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 PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_
#define PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_
#include "base/memory/ref_counted.h"
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_point.h"
#include "ppapi/c/pp_rect.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_size.h"
#include "ppapi/thunk/ppapi_thunk_export.h"
namespace ppapi {
class TrackedCallback;
namespace thunk {
class PPAPI_THUNK_EXPORT PPB_Graphics2D_API {
public:
virtual ~PPB_Graphics2D_API() {}
virtual PP_Bool Describe(PP_Size* size, PP_Bool* is_always_opaque) = 0;
virtual void PaintImageData(PP_Resource image_data,
const PP_Point* top_left,
const PP_Rect* src_rect) = 0;
virtual void Scroll(const PP_Rect* clip_rect,
const PP_Point* amount) = 0;
virtual void ReplaceContents(PP_Resource image_data) = 0;
virtual bool SetScale(float scale) = 0;
virtual float GetScale() = 0;
// When |old_image_data| is non-null and the flush is executing a replace
// contents (which leaves the "old" ImageData unowned), the resource ID of
// the old image data will be placed into |*old_image_data| synchronously
// (not when the flush callback completes).
//
// When this happens, a reference to this resource will be transferred to the
// caller. If there is no replace contents operation, old_image_data will be
// ignored. If |*old_image_data| is null, then the old image data will be
// destroyed if there was one.
virtual int32_t Flush(scoped_refptr<TrackedCallback> callback,
PP_Resource* old_image_data) = 0;
// Test only
virtual bool ReadImageData(PP_Resource image, const PP_Point* top_left) = 0;
};
} // namespace thunk
} // namespace ppapi
#endif // PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_
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