cc/output/copy_output_request.cc

   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/logging.h"
  10 #include "base/trace_event/trace_event.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