gfx/skia/trunk/src/gpu/GrTextContext.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 /*
michael@0 2 * Copyright 2010 Google Inc.
michael@0 3 *
michael@0 4 * Use of this source code is governed by a BSD-style license that can be
michael@0 5 * found in the LICENSE file.
michael@0 6 */
michael@0 7
michael@0 8 #include "GrTextContext.h"
michael@0 9 #include "GrContext.h"
michael@0 10
michael@0 11 #include "SkAutoKern.h"
michael@0 12 #include "SkGlyphCache.h"
michael@0 13 #include "SkGr.h"
michael@0 14
michael@0 15 GrTextContext::GrTextContext(GrContext* context, const SkDeviceProperties& properties) :
michael@0 16 fContext(context), fDeviceProperties(properties), fDrawTarget(NULL) {
michael@0 17 }
michael@0 18
michael@0 19 void GrTextContext::init(const GrPaint& grPaint, const SkPaint& skPaint) {
michael@0 20 const GrClipData* clipData = fContext->getClip();
michael@0 21
michael@0 22 SkRect devConservativeBound;
michael@0 23 clipData->fClipStack->getConservativeBounds(
michael@0 24 -clipData->fOrigin.fX,
michael@0 25 -clipData->fOrigin.fY,
michael@0 26 fContext->getRenderTarget()->width(),
michael@0 27 fContext->getRenderTarget()->height(),
michael@0 28 &devConservativeBound);
michael@0 29
michael@0 30 devConservativeBound.roundOut(&fClipRect);
michael@0 31
michael@0 32 fDrawTarget = fContext->getTextTarget();
michael@0 33
michael@0 34 fPaint = grPaint;
michael@0 35 fSkPaint = skPaint;
michael@0 36 }
michael@0 37
michael@0 38 //*** change to output positions?
michael@0 39 void GrTextContext::MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc,
michael@0 40 const char text[], size_t byteLength, SkVector* stopVector) {
michael@0 41 SkFixed x = 0, y = 0;
michael@0 42 const char* stop = text + byteLength;
michael@0 43
michael@0 44 SkAutoKern autokern;
michael@0 45
michael@0 46 while (text < stop) {
michael@0 47 // don't need x, y here, since all subpixel variants will have the
michael@0 48 // same advance
michael@0 49 const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0);
michael@0 50
michael@0 51 x += autokern.adjust(glyph) + glyph.fAdvanceX;
michael@0 52 y += glyph.fAdvanceY;
michael@0 53 }
michael@0 54 stopVector->set(SkFixedToScalar(x), SkFixedToScalar(y));
michael@0 55
michael@0 56 SkASSERT(text == stop);
michael@0 57 }
michael@0 58
michael@0 59 static void GlyphCacheAuxProc(void* data) {
michael@0 60 GrFontScaler* scaler = (GrFontScaler*)data;
michael@0 61 SkSafeUnref(scaler);
michael@0 62 }
michael@0 63
michael@0 64 GrFontScaler* GrTextContext::GetGrFontScaler(SkGlyphCache* cache) {
michael@0 65 void* auxData;
michael@0 66 GrFontScaler* scaler = NULL;
michael@0 67
michael@0 68 if (cache->getAuxProcData(GlyphCacheAuxProc, &auxData)) {
michael@0 69 scaler = (GrFontScaler*)auxData;
michael@0 70 }
michael@0 71 if (NULL == scaler) {
michael@0 72 scaler = SkNEW_ARGS(SkGrFontScaler, (cache));
michael@0 73 cache->setAuxProc(GlyphCacheAuxProc, scaler);
michael@0 74 }
michael@0 75
michael@0 76 return scaler;
michael@0 77 }

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