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| 1 /* | |
| 2 * Copyright 2010 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 #include "GrTextContext.h" | |
| 9 #include "GrFontScaler.h" | |
| 10 | |
| 11 #include "SkGlyphCache.h" | |
| 12 | |
| 13 bool GrTextContext::ShouldDisableLCD(const SkPaint& paint) { | |
| 14 if (!SkXfermode::AsMode(paint.getXfermode(), nullptr) || | |
| 15 paint.getMaskFilter() || | |
| 16 paint.getRasterizer() || | |
| 17 paint.getPathEffect() || | |
| 18 paint.isFakeBoldText() || | |
| 19 paint.getStyle() != SkPaint::kFill_Style) | |
| 20 { | |
| 21 return true; | |
| 22 } | |
| 23 return false; | |
| 24 } | |
| 25 | |
| 26 uint32_t GrTextContext::FilterTextFlags(const SkSurfaceProps& surfaceProps, cons
t SkPaint& paint) { | |
| 27 uint32_t flags = paint.getFlags(); | |
| 28 | |
| 29 if (!paint.isLCDRenderText() || !paint.isAntiAlias()) { | |
| 30 return flags; | |
| 31 } | |
| 32 | |
| 33 if (kUnknown_SkPixelGeometry == surfaceProps.pixelGeometry() || ShouldDisabl
eLCD(paint)) { | |
| 34 flags &= ~SkPaint::kLCDRenderText_Flag; | |
| 35 flags |= SkPaint::kGenA8FromLCD_Flag; | |
| 36 } | |
| 37 | |
| 38 return flags; | |
| 39 } | |
| 40 | |
| 41 static void GlyphCacheAuxProc(void* data) { | |
| 42 GrFontScaler* scaler = (GrFontScaler*)data; | |
| 43 SkSafeUnref(scaler); | |
| 44 } | |
| 45 | |
| 46 GrFontScaler* GrTextContext::GetGrFontScaler(SkGlyphCache* cache) { | |
| 47 void* auxData; | |
| 48 GrFontScaler* scaler = nullptr; | |
| 49 | |
| 50 if (cache->getAuxProcData(GlyphCacheAuxProc, &auxData)) { | |
| 51 scaler = (GrFontScaler*)auxData; | |
| 52 } | |
| 53 if (nullptr == scaler) { | |
| 54 scaler = new GrFontScaler(cache); | |
| 55 cache->setAuxProc(GlyphCacheAuxProc, scaler); | |
| 56 } | |
| 57 | |
| 58 return scaler; | |
| 59 } | |
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