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comparison: gfx/skia/trunk/src/core/SkConfig8888.h
gfx/skia/trunk/src/core/SkConfig8888.h
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:8f9a9f609875 |
|---|---|
| 1 /* | |
| 2 * Copyright 2011 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkConfig8888_DEFINED | |
| 9 #define SkConfig8888_DEFINED | |
| 10 | |
| 11 #include "SkCanvas.h" | |
| 12 #include "SkColorPriv.h" | |
| 13 | |
| 14 /** | |
| 15 * Converts pixels from one Config8888 to another Config8888 | |
| 16 */ | |
| 17 void SkConvertConfig8888Pixels(uint32_t* dstPixels, | |
| 18 size_t dstRowBytes, | |
| 19 SkCanvas::Config8888 dstConfig, | |
| 20 const uint32_t* srcPixels, | |
| 21 size_t srcRowBytes, | |
| 22 SkCanvas::Config8888 srcConfig, | |
| 23 int width, | |
| 24 int height); | |
| 25 | |
| 26 /** | |
| 27 * Packs a, r, g, b, values into byte order specified by config. | |
| 28 */ | |
| 29 uint32_t SkPackConfig8888(SkCanvas::Config8888 config, | |
| 30 uint32_t a, | |
| 31 uint32_t r, | |
| 32 uint32_t g, | |
| 33 uint32_t b); | |
| 34 | |
| 35 /////////////////////////////////////////////////////////////////////////////// | |
| 36 // Implementation | |
| 37 | |
| 38 namespace { | |
| 39 | |
| 40 /** | |
| 41 Copies all pixels from a bitmap to a dst ptr with a given rowBytes and | |
| 42 Config8888. The bitmap must have kARGB_8888_Config. | |
| 43 */ | |
| 44 | |
| 45 static inline void SkCopyBitmapToConfig8888(uint32_t* dstPixels, | |
| 46 size_t dstRowBytes, | |
| 47 SkCanvas::Config8888 dstConfig8888, | |
| 48 const SkBitmap& srcBmp) { | |
| 49 SkASSERT(SkBitmap::kARGB_8888_Config == srcBmp.config()); | |
| 50 SkAutoLockPixels alp(srcBmp); | |
| 51 int w = srcBmp.width(); | |
| 52 int h = srcBmp.height(); | |
| 53 size_t srcRowBytes = srcBmp.rowBytes(); | |
| 54 const uint32_t* srcPixels = reinterpret_cast<uint32_t*>(srcBmp.getPixels()); | |
| 55 | |
| 56 SkConvertConfig8888Pixels(dstPixels, dstRowBytes, dstConfig8888, srcPixels, srcRowBytes, SkCanvas::kNative_Premul_Config8888, w, h); | |
| 57 } | |
| 58 | |
| 59 /** | |
| 60 Copies over all pixels in a bitmap from a src ptr with a given rowBytes and | |
| 61 Config8888. The bitmap must have pixels and be kARGB_8888_Config. | |
| 62 */ | |
| 63 static inline void SkCopyConfig8888ToBitmap(const SkBitmap& dstBmp, | |
| 64 const uint32_t* srcPixels, | |
| 65 size_t srcRowBytes, | |
| 66 SkCanvas::Config8888 srcConfig8888) { | |
| 67 SkASSERT(SkBitmap::kARGB_8888_Config == dstBmp.config()); | |
| 68 SkAutoLockPixels alp(dstBmp); | |
| 69 int w = dstBmp.width(); | |
| 70 int h = dstBmp.height(); | |
| 71 size_t dstRowBytes = dstBmp.rowBytes(); | |
| 72 uint32_t* dstPixels = reinterpret_cast<uint32_t*>(dstBmp.getPixels()); | |
| 73 | |
| 74 SkConvertConfig8888Pixels(dstPixels, dstRowBytes, SkCanvas::kNative_Premul_Config8888, srcPixels, srcRowBytes, srcConfig8888, w, h); | |
| 75 } | |
| 76 | |
| 77 } | |
| 78 | |
| 79 #endif |
