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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 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 #include "config.h" | 5 #include "config.h" |
6 | 6 |
7 #if USE(ACCELERATED_COMPOSITING) | 7 #if USE(ACCELERATED_COMPOSITING) |
8 | 8 |
9 #include "LayerTextureSubImage.h" | 9 #include "LayerTextureSubImage.h" |
10 | 10 |
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88 unsigned int componentsPerPixel = 0; | 88 unsigned int componentsPerPixel = 0; |
89 switch (format) { | 89 switch (format) { |
90 case GraphicsContext3D::RGBA: | 90 case GraphicsContext3D::RGBA: |
91 case Extensions3D::BGRA_EXT: | 91 case Extensions3D::BGRA_EXT: |
92 componentsPerPixel = 4; | 92 componentsPerPixel = 4; |
93 break; | 93 break; |
94 case GraphicsContext3D::LUMINANCE: | 94 case GraphicsContext3D::LUMINANCE: |
95 componentsPerPixel = 1; | 95 componentsPerPixel = 1; |
96 break; | 96 break; |
97 default: | 97 default: |
98 ASSERT_NOT_REACHED(); | 98 NOTREACHED(); |
99 } | 99 } |
100 unsigned int bytesPerComponent = 1; | 100 unsigned int bytesPerComponent = 1; |
101 | 101 |
102 if (imageRect.width() == sourceRect.width() && !offset.x()) | 102 if (imageRect.width() == sourceRect.width() && !offset.x()) |
103 memcpy(pixelDest, &image[offset.y() * imageRect.width() * componentsPerP
ixel * bytesPerComponent], imageRect.width() * sourceRect.height() * componentsP
erPixel * bytesPerComponent); | 103 memcpy(pixelDest, &image[offset.y() * imageRect.width() * componentsPerP
ixel * bytesPerComponent], imageRect.width() * sourceRect.height() * componentsP
erPixel * bytesPerComponent); |
104 else { | 104 else { |
105 // Strides not equal, so do a row-by-row memcpy from the | 105 // Strides not equal, so do a row-by-row memcpy from the |
106 // paint results into the pixelDest | 106 // paint results into the pixelDest |
107 for (int row = 0; row < sourceRect.height(); ++row) | 107 for (int row = 0; row < sourceRect.height(); ++row) |
108 memcpy(&pixelDest[sourceRect.width() * row * componentsPerPixel * by
tesPerComponent], | 108 memcpy(&pixelDest[sourceRect.width() * row * componentsPerPixel * by
tesPerComponent], |
109 &image[4 * (offset.x() + (offset.y() + row) * imageRect.width
())], | 109 &image[4 * (offset.x() + (offset.y() + row) * imageRect.width
())], |
110 sourceRect.width() * componentsPerPixel * bytesPerComponent); | 110 sourceRect.width() * componentsPerPixel * bytesPerComponent); |
111 } | 111 } |
112 GLC(context, context->unmapTexSubImage2DCHROMIUM(pixelDest)); | 112 GLC(context, context->unmapTexSubImage2DCHROMIUM(pixelDest)); |
113 } | 113 } |
114 | 114 |
115 } // namespace cc | 115 } // namespace cc |
116 | 116 |
117 #endif // USE(ACCELERATED_COMPOSITING) | 117 #endif // USE(ACCELERATED_COMPOSITING) |
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