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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 #ifndef CC_OUTPUT_COPY_OUTPUT_RESULT_H_
      6 #define CC_OUTPUT_COPY_OUTPUT_RESULT_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "cc/base/cc_export.h"
     10 #include "cc/resources/texture_mailbox.h"
     11 #include "ui/gfx/size.h"
     12 
     13 class SkBitmap;
     14 
     15 namespace cc {
     16 class SingleReleaseCallback;
     17 class TextureMailbox;
     18 
     19 class CC_EXPORT CopyOutputResult {
     20  public:
     21   static scoped_ptr<CopyOutputResult> CreateEmptyResult() {
     22     return make_scoped_ptr(new CopyOutputResult);
     23   }
     24   static scoped_ptr<CopyOutputResult> CreateBitmapResult(
     25       scoped_ptr<SkBitmap> bitmap) {
     26     return make_scoped_ptr(new CopyOutputResult(bitmap.Pass()));
     27   }
     28   static scoped_ptr<CopyOutputResult> CreateTextureResult(
     29       gfx::Size size,
     30       const TextureMailbox& texture_mailbox,
     31       scoped_ptr<SingleReleaseCallback> release_callback) {
     32     return make_scoped_ptr(
     33         new CopyOutputResult(size, texture_mailbox, release_callback.Pass()));
     34   }
     35 
     36   ~CopyOutputResult();
     37 
     38   bool IsEmpty() const { return !HasBitmap() && !HasTexture(); }
     39   bool HasBitmap() const { return !!bitmap_; }
     40   bool HasTexture() const { return texture_mailbox_.IsValid(); }
     41 
     42   gfx::Size size() const { return size_; }
     43   scoped_ptr<SkBitmap> TakeBitmap();
     44   void TakeTexture(TextureMailbox* texture_mailbox,
     45                    scoped_ptr<SingleReleaseCallback>* release_callback);
     46 
     47  private:
     48   CopyOutputResult();
     49   explicit CopyOutputResult(scoped_ptr<SkBitmap> bitmap);
     50   explicit CopyOutputResult(gfx::Size size,
     51                             const TextureMailbox& texture_mailbox,
     52                             scoped_ptr<SingleReleaseCallback> release_callback);
     53 
     54   gfx::Size size_;
     55   scoped_ptr<SkBitmap> bitmap_;
     56   TextureMailbox texture_mailbox_;
     57   scoped_ptr<SingleReleaseCallback> release_callback_;
     58 };
     59 
     60 }  // namespace cc
     61 
     62 #endif  // CC_OUTPUT_COPY_OUTPUT_RESULT_H_
     63