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// Copyright 2013 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_OUTPUT_COPY_OUTPUT_REQUEST_H_
#define CC_OUTPUT_COPY_OUTPUT_REQUEST_H_
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "ui/gfx/rect.h"
class SkBitmap;
namespace cc {
class CopyOutputResult;
class SingleReleaseCallback;
class TextureMailbox;
class CC_EXPORT CopyOutputRequest {
public:
typedef base::Callback<void(scoped_ptr<CopyOutputResult> result)>
CopyOutputRequestCallback;
static scoped_ptr<CopyOutputRequest> CreateEmptyRequest() {
return make_scoped_ptr(new CopyOutputRequest);
}
static scoped_ptr<CopyOutputRequest> CreateRequest(
const CopyOutputRequestCallback& result_callback) {
return make_scoped_ptr(new CopyOutputRequest(false, result_callback));
}
static scoped_ptr<CopyOutputRequest> CreateBitmapRequest(
const CopyOutputRequestCallback& result_callback) {
return make_scoped_ptr(new CopyOutputRequest(true, result_callback));
}
static scoped_ptr<CopyOutputRequest> CreateRelayRequest(
const CopyOutputRequest& original_request,
const CopyOutputRequestCallback& result_callback) {
scoped_ptr<CopyOutputRequest> relay = CreateRequest(result_callback);
relay->force_bitmap_result_ = original_request.force_bitmap_result_;
relay->has_area_ = original_request.has_area_;
relay->area_ = original_request.area_;
return relay.Pass();
}
~CopyOutputRequest();
bool IsEmpty() const { return result_callback_.is_null(); }
bool force_bitmap_result() const { return force_bitmap_result_; }
// By default copy requests copy the entire layer's subtree output. If an
// area is given, then the intersection of this rect (in layer space) with
// the layer's subtree output will be returned.
void set_area(gfx::Rect area) {
has_area_ = true;
area_ = area;
}
bool has_area() const { return has_area_; }
gfx::Rect area() const { return area_; }
void SendEmptyResult();
void SendBitmapResult(scoped_ptr<SkBitmap> bitmap);
void SendTextureResult(gfx::Size size,
const TextureMailbox& texture_mailbox,
scoped_ptr<SingleReleaseCallback> release_callback);
void SendResult(scoped_ptr<CopyOutputResult> result);
bool Equals(const CopyOutputRequest& other) const {
return result_callback_.Equals(other.result_callback_) &&
force_bitmap_result_ == other.force_bitmap_result_;
}
private:
CopyOutputRequest();
explicit CopyOutputRequest(bool force_bitmap_result,
const CopyOutputRequestCallback& result_callback);
bool force_bitmap_result_;
bool has_area_;
gfx::Rect area_;
CopyOutputRequestCallback result_callback_;
};
} // namespace cc
#endif // CC_OUTPUT_COPY_OUTPUT_REQUEST_H_
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