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1 /* | 1 /* |
2 * Copyright (c) 2013, Google Inc. All rights reserved. | 2 * Copyright (c) 2013, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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39 | 39 |
40 class WebGraphicsContext3DProvider; | 40 class WebGraphicsContext3DProvider; |
41 | 41 |
42 // This is a GPU backed surface that has no canvas or render target. | 42 // This is a GPU backed surface that has no canvas or render target. |
43 class PLATFORM_EXPORT WebGLImageBufferSurface : public ImageBufferSurface { | 43 class PLATFORM_EXPORT WebGLImageBufferSurface : public ImageBufferSurface { |
44 WTF_MAKE_NONCOPYABLE(WebGLImageBufferSurface); WTF_MAKE_FAST_ALLOCATED; | 44 WTF_MAKE_NONCOPYABLE(WebGLImageBufferSurface); WTF_MAKE_FAST_ALLOCATED; |
45 public: | 45 public: |
46 WebGLImageBufferSurface(const IntSize&, OpacityMode = NonOpaque); | 46 WebGLImageBufferSurface(const IntSize&, OpacityMode = NonOpaque); |
47 virtual ~WebGLImageBufferSurface(); | 47 virtual ~WebGLImageBufferSurface(); |
48 | 48 |
49 virtual SkCanvas* canvas() const OVERRIDE { return 0; } | 49 virtual SkCanvas* canvas() const override { return 0; } |
50 virtual const SkBitmap& bitmap() OVERRIDE { return m_bitmap; } | 50 virtual const SkBitmap& bitmap() override { return m_bitmap; } |
51 virtual bool isValid() const OVERRIDE { return m_bitmap.pixelRef(); } | 51 virtual bool isValid() const override { return m_bitmap.pixelRef(); } |
52 virtual bool isAccelerated() const OVERRIDE { return true; } | 52 virtual bool isAccelerated() const override { return true; } |
53 virtual Platform3DObject getBackingTexture() const OVERRIDE; | 53 virtual Platform3DObject getBackingTexture() const override; |
54 virtual void didModifyBackingTexture() OVERRIDE; | 54 virtual void didModifyBackingTexture() override; |
55 virtual bool cachedBitmapEnabled() const OVERRIDE { return true; } | 55 virtual bool cachedBitmapEnabled() const override { return true; } |
56 virtual const SkBitmap& cachedBitmap() const OVERRIDE { return m_cachedBitma
p; } | 56 virtual const SkBitmap& cachedBitmap() const override { return m_cachedBitma
p; } |
57 virtual void invalidateCachedBitmap() OVERRIDE; | 57 virtual void invalidateCachedBitmap() override; |
58 virtual void updateCachedBitmapIfNeeded() OVERRIDE; | 58 virtual void updateCachedBitmapIfNeeded() override; |
59 | 59 |
60 private: | 60 private: |
61 SkBitmap m_bitmap; | 61 SkBitmap m_bitmap; |
62 // This raw-pixel based SkBitmap works as a cache at CPU side to avoid heavy
cost | 62 // This raw-pixel based SkBitmap works as a cache at CPU side to avoid heavy
cost |
63 // on readback from GPU side to CPU side in some cases. | 63 // on readback from GPU side to CPU side in some cases. |
64 SkBitmap m_cachedBitmap; | 64 SkBitmap m_cachedBitmap; |
65 OwnPtr<WebGraphicsContext3DProvider> m_contextProvider; | 65 OwnPtr<WebGraphicsContext3DProvider> m_contextProvider; |
66 }; | 66 }; |
67 | 67 |
68 } // namespace blink | 68 } // namespace blink |
69 | 69 |
70 #endif | 70 #endif |
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