The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/effects/SkPixelXorXfermode.cpp
gfx/skia/trunk/src/effects/SkPixelXorXfermode.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:b400fe892354 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #include "SkPixelXorXfermode.h" | |
| 11 #include "SkColorPriv.h" | |
| 12 #include "SkReadBuffer.h" | |
| 13 #include "SkWriteBuffer.h" | |
| 14 #include "SkString.h" | |
| 15 | |
| 16 // we always return an opaque color, 'cause I don't know what to do with | |
| 17 // the alpha-component and still return a valid premultiplied color. | |
| 18 SkPMColor SkPixelXorXfermode::xferColor(SkPMColor src, SkPMColor dst) const { | |
| 19 SkPMColor res = src ^ dst ^ fOpColor; | |
| 20 res |= (SK_A32_MASK << SK_A32_SHIFT); // force it to be opaque | |
| 21 return res; | |
| 22 } | |
| 23 | |
| 24 void SkPixelXorXfermode::flatten(SkWriteBuffer& wb) const { | |
| 25 this->INHERITED::flatten(wb); | |
| 26 wb.writeColor(fOpColor); | |
| 27 } | |
| 28 | |
| 29 SkPixelXorXfermode::SkPixelXorXfermode(SkReadBuffer& rb) | |
| 30 : INHERITED(rb) { | |
| 31 fOpColor = rb.readColor(); | |
| 32 } | |
| 33 | |
| 34 #ifndef SK_IGNORE_TO_STRING | |
| 35 void SkPixelXorXfermode::toString(SkString* str) const { | |
| 36 str->append("SkPixelXorXfermode: "); | |
| 37 str->appendHex(fOpColor); | |
| 38 } | |
| 39 #endif |
