cc/blink/web_external_bitmap_impl.h

   1 // Copyright 2014 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_BLINK_WEB_EXTERNAL_BITMAP_IMPL_H_
   6 #define CC_BLINK_WEB_EXTERNAL_BITMAP_IMPL_H_
   7
   8 #include "base/bind.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "cc/blink/cc_blink_export.h"
  11 #include "third_party/WebKit/public/platform/WebExternalBitmap.h"
  12
  13 namespace cc {
  14 class SharedBitmap;
  15 }
  16
  17 namespace cc_blink {
  18
  19 typedef scoped_ptr<cc::SharedBitmap>(*SharedBitmapAllocationFunction)(
  20     const gfx::Size& size);
  21
  22 // Sets the function that this will use to allocate shared memory.
  23 CC_BLINK_EXPORT void SetSharedBitmapAllocationFunction(
  24     SharedBitmapAllocationFunction);
  25
  26 class WebExternalBitmapImpl : public blink::WebExternalBitmap {
  27  public:
  28   CC_BLINK_EXPORT explicit WebExternalBitmapImpl();
  29   virtual ~WebExternalBitmapImpl();
  30
  31   // blink::WebExternalBitmap implementation.
  32   blink::WebSize size() override;
  33   void setSize(blink::WebSize size) override;
  34   uint8* pixels() override;
  35
  36   cc::SharedBitmap* shared_bitmap() { return shared_bitmap_.get(); }
  37
  38  private:
  39   scoped_ptr<cc::SharedBitmap> shared_bitmap_;
  40   blink::WebSize size_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(WebExternalBitmapImpl);
  43 };
  44
  45 }  // namespace cc_blink
  46
  47 #endif  // CC_BLINK_WEB_EXTERNAL_BITMAP_IMPL_H_