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      1 // Copyright 2013 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 #include "cc/output/copy_output_request.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/callback_helpers.h"
      9 #include "base/debug/trace_event.h"
     10 #include "base/logging.h"
     11 #include "cc/output/copy_output_result.h"
     12 #include "cc/resources/texture_mailbox.h"
     13 #include "third_party/skia/include/core/SkBitmap.h"
     14 
     15 namespace cc {
     16 
     17 // static
     18 scoped_ptr<CopyOutputRequest> CopyOutputRequest::CreateRelayRequest(
     19     const CopyOutputRequest& original_request,
     20     const CopyOutputRequestCallback& result_callback) {
     21   scoped_ptr<CopyOutputRequest> relay = CreateRequest(result_callback);
     22   relay->force_bitmap_result_ = original_request.force_bitmap_result_;
     23   relay->has_area_ = original_request.has_area_;
     24   relay->area_ = original_request.area_;
     25   relay->has_texture_mailbox_ = original_request.has_texture_mailbox_;
     26   relay->texture_mailbox_ = original_request.texture_mailbox_;
     27   return relay.Pass();
     28 }
     29 
     30 CopyOutputRequest::CopyOutputRequest() {}
     31 
     32 CopyOutputRequest::CopyOutputRequest(
     33     bool force_bitmap_result,
     34     const CopyOutputRequestCallback& result_callback)
     35     : force_bitmap_result_(force_bitmap_result),
     36       has_area_(false),
     37       has_texture_mailbox_(false),
     38       result_callback_(result_callback) {
     39   DCHECK(!result_callback_.is_null());
     40   TRACE_EVENT_ASYNC_BEGIN0("cc", "CopyOutputRequest", this);
     41 }
     42 
     43 CopyOutputRequest::~CopyOutputRequest() {
     44   if (!result_callback_.is_null())
     45     SendResult(CopyOutputResult::CreateEmptyResult().Pass());
     46 }
     47 
     48 void CopyOutputRequest::SendResult(scoped_ptr<CopyOutputResult> result) {
     49   bool success = !result->IsEmpty();
     50   base::ResetAndReturn(&result_callback_).Run(result.Pass());
     51   TRACE_EVENT_ASYNC_END1("cc", "CopyOutputRequest", this, "success", success);
     52 }
     53 
     54 void CopyOutputRequest::SendEmptyResult() {
     55   SendResult(CopyOutputResult::CreateEmptyResult().Pass());
     56 }
     57 
     58 void CopyOutputRequest::SendBitmapResult(scoped_ptr<SkBitmap> bitmap) {
     59   SendResult(CopyOutputResult::CreateBitmapResult(bitmap.Pass()).Pass());
     60 }
     61 
     62 void CopyOutputRequest::SendTextureResult(
     63     const gfx::Size& size,
     64     const TextureMailbox& texture_mailbox,
     65     scoped_ptr<SingleReleaseCallback> release_callback) {
     66   DCHECK(texture_mailbox.IsTexture());
     67   SendResult(CopyOutputResult::CreateTextureResult(
     68       size, texture_mailbox, release_callback.Pass()));
     69 }
     70 
     71 void CopyOutputRequest::SetTextureMailbox(
     72     const TextureMailbox& texture_mailbox) {
     73   DCHECK(!force_bitmap_result_);
     74   DCHECK(texture_mailbox.IsTexture());
     75   has_texture_mailbox_ = true;
     76   texture_mailbox_ = texture_mailbox;
     77 }
     78 
     79 }  // namespace cc
     80