OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 | 8 |
9 #ifndef GrSurface_DEFINED | 9 #ifndef GrSurface_DEFINED |
10 #define GrSurface_DEFINED | 10 #define GrSurface_DEFINED |
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
57 virtual GrTexture* asTexture() = 0; | 57 virtual GrTexture* asTexture() = 0; |
58 virtual const GrTexture* asTexture() const = 0; | 58 virtual const GrTexture* asTexture() const = 0; |
59 | 59 |
60 /** | 60 /** |
61 * @return the render target underlying this surface, may be NULL. | 61 * @return the render target underlying this surface, may be NULL. |
62 */ | 62 */ |
63 virtual GrRenderTarget* asRenderTarget() = 0; | 63 virtual GrRenderTarget* asRenderTarget() = 0; |
64 virtual const GrRenderTarget* asRenderTarget() const = 0; | 64 virtual const GrRenderTarget* asRenderTarget() const = 0; |
65 | 65 |
66 /** | 66 /** |
| 67 * Checks whether this GrSurface refers to the same GPU object as other. Thi
s |
| 68 * catches the case where a GrTexture and GrRenderTarget refer to the same |
| 69 * GPU memory. |
| 70 */ |
| 71 bool isSameAs(const GrSurface* other) const { |
| 72 const GrRenderTarget* thisRT = this->asRenderTarget(); |
| 73 if (NULL != thisRT) { |
| 74 return thisRT == other->asRenderTarget(); |
| 75 } else { |
| 76 const GrTexture* thisTex = this->asTexture(); |
| 77 GrAssert(NULL != thisTex); // We must be one or the other |
| 78 return thisTex == other->asTexture(); |
| 79 } |
| 80 } |
| 81 |
| 82 /** |
67 * Reads a rectangle of pixels from the surface. | 83 * Reads a rectangle of pixels from the surface. |
68 * @param left left edge of the rectangle to read (inclusive) | 84 * @param left left edge of the rectangle to read (inclusive) |
69 * @param top top edge of the rectangle to read (inclusive) | 85 * @param top top edge of the rectangle to read (inclusive) |
70 * @param width width of rectangle to read in pixels. | 86 * @param width width of rectangle to read in pixels. |
71 * @param height height of rectangle to read in pixels. | 87 * @param height height of rectangle to read in pixels. |
72 * @param config the pixel config of the destination buffer | 88 * @param config the pixel config of the destination buffer |
73 * @param buffer memory to read the rectangle into. | 89 * @param buffer memory to read the rectangle into. |
74 * @param rowBytes number of bytes between consecutive rows. Zero means
rows are tightly | 90 * @param rowBytes number of bytes between consecutive rows. Zero means
rows are tightly |
75 * packed. | 91 * packed. |
76 * @param pixelOpsFlags See the GrContext::PixelOpsFlags enum. | 92 * @param pixelOpsFlags See the GrContext::PixelOpsFlags enum. |
(...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
109 , fDesc(desc) { | 125 , fDesc(desc) { |
110 } | 126 } |
111 | 127 |
112 GrTextureDesc fDesc; | 128 GrTextureDesc fDesc; |
113 | 129 |
114 private: | 130 private: |
115 typedef GrResource INHERITED; | 131 typedef GrResource INHERITED; |
116 }; | 132 }; |
117 | 133 |
118 #endif // GrSurface_DEFINED | 134 #endif // GrSurface_DEFINED |
OLD | NEW |