The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkBlitter_Sprite.cpp
gfx/skia/trunk/src/core/SkBlitter_Sprite.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:1bad68eb9560 |
|---|---|
| 1 /* | |
| 2 * Copyright 2006 The Android Open Source Project | |
| 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 #include "SkSmallAllocator.h" | |
| 9 #include "SkSpriteBlitter.h" | |
| 10 | |
| 11 SkSpriteBlitter::SkSpriteBlitter(const SkBitmap& source) | |
| 12 : fSource(&source) { | |
| 13 fSource->lockPixels(); | |
| 14 } | |
| 15 | |
| 16 SkSpriteBlitter::~SkSpriteBlitter() { | |
| 17 fSource->unlockPixels(); | |
| 18 } | |
| 19 | |
| 20 void SkSpriteBlitter::setup(const SkBitmap& device, int left, int top, | |
| 21 const SkPaint& paint) { | |
| 22 fDevice = &device; | |
| 23 fLeft = left; | |
| 24 fTop = top; | |
| 25 fPaint = &paint; | |
| 26 } | |
| 27 | |
| 28 #ifdef SK_DEBUG | |
| 29 void SkSpriteBlitter::blitH(int x, int y, int width) { | |
| 30 SkDEBUGFAIL("how did we get here?"); | |
| 31 } | |
| 32 | |
| 33 void SkSpriteBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], | |
| 34 const int16_t runs[]) { | |
| 35 SkDEBUGFAIL("how did we get here?"); | |
| 36 } | |
| 37 | |
| 38 void SkSpriteBlitter::blitV(int x, int y, int height, SkAlpha alpha) { | |
| 39 SkDEBUGFAIL("how did we get here?"); | |
| 40 } | |
| 41 | |
| 42 void SkSpriteBlitter::blitMask(const SkMask&, const SkIRect& clip) { | |
| 43 SkDEBUGFAIL("how did we get here?"); | |
| 44 } | |
| 45 #endif | |
| 46 | |
| 47 /////////////////////////////////////////////////////////////////////////////// | |
| 48 | |
| 49 // returning null means the caller will call SkBlitter::Choose() and | |
| 50 // have wrapped the source bitmap inside a shader | |
| 51 SkBlitter* SkBlitter::ChooseSprite(const SkBitmap& device, const SkPaint& paint, | |
| 52 const SkBitmap& source, int left, int top, SkTBlitterAllocator* allocator) { | |
| 53 /* We currently ignore antialiasing and filtertype, meaning we will take our | |
| 54 special blitters regardless of these settings. Ignoring filtertype seems fine | |
| 55 since by definition there is no scale in the matrix. Ignoring antialiasing is | |
| 56 a bit of a hack, since we "could" pass in the fractional left/top for the bitmap, | |
| 57 and respect that by blending the edges of the bitmap against the device. To support | |
| 58 this we could either add more special blitters here, or detect antialiasing in the | |
| 59 paint and return null if it is set, forcing the client to take the slow shader case | |
| 60 (which does respect soft edges). | |
| 61 */ | |
| 62 SkASSERT(allocator != NULL); | |
| 63 | |
| 64 SkSpriteBlitter* blitter; | |
| 65 | |
| 66 switch (device.colorType()) { | |
| 67 case kRGB_565_SkColorType: | |
| 68 blitter = SkSpriteBlitter::ChooseD16(source, paint, allocator); | |
| 69 break; | |
| 70 case kPMColor_SkColorType: | |
| 71 blitter = SkSpriteBlitter::ChooseD32(source, paint, allocator); | |
| 72 break; | |
| 73 default: | |
| 74 blitter = NULL; | |
| 75 break; | |
| 76 } | |
| 77 | |
| 78 if (blitter) { | |
| 79 blitter->setup(device, left, top, paint); | |
| 80 } | |
| 81 return blitter; | |
| 82 } |
