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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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