The Tor Browser / file comparison
comparison: gfx/2d/Scale.h
gfx/2d/Scale.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:83583ecd5725 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #ifndef MOZILLA_GFX_SCALE_H_ | |
| 6 #define MOZILLA_GFX_SCALE_H_ | |
| 7 | |
| 8 #include "Types.h" | |
| 9 | |
| 10 namespace mozilla { | |
| 11 namespace gfx { | |
| 12 | |
| 13 /** | |
| 14 * Scale an image using a high-quality filter. | |
| 15 * | |
| 16 * Synchronously scales an image and writes the output to the destination in | |
| 17 * 32-bit format. The destination must be pre-allocated by the caller. | |
| 18 * | |
| 19 * Returns true if scaling was successful, and false otherwise. Currently, this | |
| 20 * function is implemented using Skia. If Skia is not enabled when building, | |
| 21 * calling this function will always return false. | |
| 22 * | |
| 23 * IMPLEMTATION NOTES: | |
| 24 * This API is not currently easily hardware acceleratable. A better API might | |
| 25 * take a SourceSurface and return a SourceSurface; the Direct2D backend, for | |
| 26 * example, could simply set a status bit on a copy of the image, and use | |
| 27 * Direct2D's high-quality scaler at draw time. | |
| 28 */ | |
| 29 GFX2D_API bool Scale(uint8_t* srcData, int32_t srcWidth, int32_t srcHeight, int32_t srcStride, | |
| 30 uint8_t* dstData, int32_t dstWidth, int32_t dstHeight, int32_t dstStride, | |
| 31 SurfaceFormat format); | |
| 32 | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 #endif /* MOZILLA_GFX_BLUR_H_ */ |
