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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ | 5 #ifndef CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ |
| 6 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ | 6 #define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/basictypes.h" | 9 // TODO(jam): remove this file when all files have been converted. |
| 10 #include "base/mac/scoped_cftyperef.h" | 10 #include "content/browser/renderer_host/backing_store_mac.h" |
| 11 #include "chrome/browser/renderer_host/backing_store.h" | |
| 12 | |
| 13 class BackingStoreMac : public BackingStore { | |
| 14 public: | |
| 15 BackingStoreMac(RenderWidgetHost* widget, const gfx::Size& size); | |
| 16 virtual ~BackingStoreMac(); | |
| 17 | |
| 18 // A CGLayer that stores the contents of the backing store, cached in GPU | |
| 19 // memory if possible. | |
| 20 CGLayerRef cg_layer() { return cg_layer_; } | |
| 21 | |
| 22 // A CGBitmapContext that stores the contents of the backing store if the | |
| 23 // corresponding Cocoa view has not been inserted into an NSWindow yet. | |
| 24 CGContextRef cg_bitmap() { return cg_bitmap_; } | |
| 25 | |
| 26 // BackingStore implementation. | |
| 27 virtual void PaintToBackingStore( | |
| 28 RenderProcessHost* process, | |
| 29 TransportDIB::Id bitmap, | |
| 30 const gfx::Rect& bitmap_rect, | |
| 31 const std::vector<gfx::Rect>& copy_rects); | |
| 32 virtual bool CopyFromBackingStore(const gfx::Rect& rect, | |
| 33 skia::PlatformCanvas* output); | |
| 34 virtual void ScrollBackingStore(int dx, int dy, | |
| 35 const gfx::Rect& clip_rect, | |
| 36 const gfx::Size& view_size); | |
| 37 | |
| 38 private: | |
| 39 // Creates a CGLayer associated with its owner view's window's graphics | |
| 40 // context, sized properly for the backing store. Returns NULL if the owner | |
| 41 // is not in a window with a CGContext. cg_layer_ is assigned this method's | |
| 42 // result. | |
| 43 CGLayerRef CreateCGLayer(); | |
| 44 | |
| 45 // Creates a CGBitmapContext sized properly for the backing store. The | |
| 46 // owner view need not be in a window. cg_bitmap_ is assigned this method's | |
| 47 // result. | |
| 48 CGContextRef CreateCGBitmapContext(); | |
| 49 | |
| 50 base::mac::ScopedCFTypeRef<CGContextRef> cg_bitmap_; | |
| 51 base::mac::ScopedCFTypeRef<CGLayerRef> cg_layer_; | |
| 52 | |
| 53 DISALLOW_COPY_AND_ASSIGN(BackingStoreMac); | |
| 54 }; | |
| 55 | 11 |
| 56 #endif // CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ | 12 #endif // CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_MAC_H_ |
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