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comparison: gfx/skia/trunk/src/core/SkBlitMask.h
gfx/skia/trunk/src/core/SkBlitMask.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:28eebc9d3377 |
|---|---|
| 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 SkBlitMask_DEFINED | |
| 9 #define SkBlitMask_DEFINED | |
| 10 | |
| 11 #include "SkBitmap.h" | |
| 12 #include "SkColor.h" | |
| 13 #include "SkMask.h" | |
| 14 | |
| 15 class SkBlitMask { | |
| 16 public: | |
| 17 /** | |
| 18 * Returns true if the device config and mask format were supported. | |
| 19 * else return false (nothing was drawn) | |
| 20 */ | |
| 21 static bool BlitColor(const SkBitmap& device, const SkMask& mask, | |
| 22 const SkIRect& clip, SkColor color); | |
| 23 | |
| 24 /** | |
| 25 * Function pointer that blits the mask into a device (dst) colorized | |
| 26 * by color. The number of pixels to blit is specified by width and height, | |
| 27 * but each scanline is offset by dstRB (rowbytes) and srcRB respectively. | |
| 28 */ | |
| 29 typedef void (*ColorProc)(void* dst, size_t dstRB, | |
| 30 const void* mask, size_t maskRB, | |
| 31 SkColor color, int width, int height); | |
| 32 | |
| 33 /** | |
| 34 * Function pointer that blits a row of mask(lcd16) into a row of dst | |
| 35 * colorized by a single color. The number of pixels to blit is specified | |
| 36 * by width. | |
| 37 */ | |
| 38 typedef void (*BlitLCD16RowProc)(SkPMColor dst[], const uint16_t src[], | |
| 39 SkColor color, int width, | |
| 40 SkPMColor opaqueDst); | |
| 41 | |
| 42 /** | |
| 43 * Function pointer that blits a row of src colors through a row of a mask | |
| 44 * onto a row of dst colors. The RowFactory that returns this function ptr | |
| 45 * will have been told the formats for the mask and the dst. | |
| 46 */ | |
| 47 typedef void (*RowProc)(void* dst, const void* mask, | |
| 48 const SkPMColor* src, int width); | |
| 49 | |
| 50 /** | |
| 51 * Public entry-point to return a blitmask ColorProc. | |
| 52 * May return NULL if config or format are not supported. | |
| 53 */ | |
| 54 static ColorProc ColorFactory(SkBitmap::Config, SkMask::Format, SkColor); | |
| 55 | |
| 56 /** | |
| 57 * Return either platform specific optimized blitmask ColorProc, | |
| 58 * or NULL if no optimized routine is available. | |
| 59 */ | |
| 60 static ColorProc PlatformColorProcs(SkBitmap::Config, SkMask::Format, SkColor); | |
| 61 | |
| 62 /** | |
| 63 * Public entry-point to return a blitcolor BlitLCD16RowProc. | |
| 64 */ | |
| 65 static BlitLCD16RowProc BlitLCD16RowFactory(bool isOpaque); | |
| 66 | |
| 67 /** | |
| 68 * Return either platform specific optimized blitcolor BlitLCD16RowProc, | |
| 69 * or NULL if no optimized routine is available. | |
| 70 */ | |
| 71 static BlitLCD16RowProc PlatformBlitRowProcs16(bool isOpaque); | |
| 72 | |
| 73 enum RowFlags { | |
| 74 kSrcIsOpaque_RowFlag = 1 << 0 | |
| 75 }; | |
| 76 | |
| 77 /** | |
| 78 * Public entry-point to return a blitmask RowProc. | |
| 79 * May return NULL if config or format are not supported. | |
| 80 */ | |
| 81 static RowProc RowFactory(SkBitmap::Config, SkMask::Format, RowFlags); | |
| 82 | |
| 83 /** | |
| 84 * Return either platform specific optimized blitmask RowProc, | |
| 85 * or NULL if no optimized routine is available. | |
| 86 */ | |
| 87 static RowProc PlatformRowProcs(SkBitmap::Config, SkMask::Format, RowFlags); | |
| 88 }; | |
| 89 | |
| 90 #endif |
