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gfx/skia/trunk/src/gpu/GrTextStrike.h@129ffea94266 (annotated)

gfx/skia/trunk/src/gpu/GrTextStrike.h

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	/*
michael@0	3	* Copyright 2010 Google Inc.
michael@0	4	*
michael@0	5	* Use of this source code is governed by a BSD-style license that can be
michael@0	6	* found in the LICENSE file.
michael@0	7	*/
michael@0	8
michael@0	9
michael@0	10
michael@0	11	#ifndef GrTextStrike_DEFINED
michael@0	12	#define GrTextStrike_DEFINED
michael@0	13
michael@0	14	#include "GrAllocPool.h"
michael@0	15	#include "GrFontScaler.h"
michael@0	16	#include "GrTHashTable.h"
michael@0	17	#include "GrPoint.h"
michael@0	18	#include "GrGlyph.h"
michael@0	19	#include "GrDrawTarget.h"
michael@0	20	#include "GrAtlas.h"
michael@0	21
michael@0	22	class GrFontCache;
michael@0	23	class GrGpu;
michael@0	24	class GrFontPurgeListener;
michael@0	25
michael@0	26	/**
michael@0	27	* The textcache maps a hostfontscaler instance to a dictionary of
michael@0	28	* glyphid->strike
michael@0	29	*/
michael@0	30	class GrTextStrike {
michael@0	31	public:
michael@0	32	GrTextStrike(GrFontCache*, const GrKey* fontScalerKey, GrMaskFormat, GrAtlasMgr*);
michael@0	33	~GrTextStrike();
michael@0	34
michael@0	35	const GrKey* getFontScalerKey() const { return fFontScalerKey; }
michael@0	36	GrFontCache* getFontCache() const { return fFontCache; }
michael@0	37	GrMaskFormat getMaskFormat() const { return fMaskFormat; }
michael@0	38
michael@0	39	inline GrGlyph* getGlyph(GrGlyph::PackedID, GrFontScaler*);
michael@0	40	bool addGlyphToAtlas(GrGlyph*, GrFontScaler*);
michael@0	41
michael@0	42	SkISize getAtlasSize() const { return fAtlas.getSize(); }
michael@0	43
michael@0	44	// testing
michael@0	45	int countGlyphs() const { return fCache.getArray().count(); }
michael@0	46	const GrGlyph* glyphAt(int index) const {
michael@0	47	return fCache.getArray()[index];
michael@0	48	}
michael@0	49
michael@0	50	// remove any references to this plot
michael@0	51	void removePlot(const GrPlot* plot);
michael@0	52
michael@0	53	public:
michael@0	54	// for easy removal from list
michael@0	55	GrTextStrike* fPrev;
michael@0	56	GrTextStrike* fNext;
michael@0	57
michael@0	58	private:
michael@0	59	class Key;
michael@0	60	GrTHashTable<GrGlyph, Key, 7> fCache;
michael@0	61	const GrKey* fFontScalerKey;
michael@0	62	GrTAllocPool<GrGlyph> fPool;
michael@0	63
michael@0	64	GrFontCache* fFontCache;
michael@0	65	GrAtlasMgr* fAtlasMgr;
michael@0	66	GrMaskFormat fMaskFormat;
michael@0	67	bool fUseDistanceField;
michael@0	68
michael@0	69	GrAtlas fAtlas;
michael@0	70
michael@0	71	GrGlyph* generateGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler);
michael@0	72
michael@0	73	friend class GrFontCache;
michael@0	74	};
michael@0	75
michael@0	76	class GrFontCache {
michael@0	77	public:
michael@0	78	GrFontCache(GrGpu*);
michael@0	79	~GrFontCache();
michael@0	80
michael@0	81	inline GrTextStrike* getStrike(GrFontScaler*, bool useDistanceField);
michael@0	82
michael@0	83	void freeAll();
michael@0	84
michael@0	85	// make an unused plot available
michael@0	86	bool freeUnusedPlot(GrTextStrike* preserveStrike);
michael@0	87
michael@0	88	// testing
michael@0	89	int countStrikes() const { return fCache.getArray().count(); }
michael@0	90	const GrTextStrike* strikeAt(int index) const {
michael@0	91	return fCache.getArray()[index];
michael@0	92	}
michael@0	93	GrTextStrike* getHeadStrike() const { return fHead; }
michael@0	94
michael@0	95	#ifdef SK_DEBUG
michael@0	96	void validate() const;
michael@0	97	#else
michael@0	98	void validate() const {}
michael@0	99	#endif
michael@0	100
michael@0	101	#ifdef SK_DEVELOPER
michael@0	102	void dump() const;
michael@0	103	#endif
michael@0	104
michael@0	105	enum AtlasType {
michael@0	106	kA8_AtlasType, //!< 1-byte per pixel
michael@0	107	k565_AtlasType, //!< 2-bytes per pixel
michael@0	108	k8888_AtlasType, //!< 4-bytes per pixel
michael@0	109
michael@0	110	kLast_AtlasType = k8888_AtlasType
michael@0	111	};
michael@0	112	static const int kAtlasCount = kLast_AtlasType + 1;
michael@0	113
michael@0	114	private:
michael@0	115	friend class GrFontPurgeListener;
michael@0	116
michael@0	117	class Key;
michael@0	118	GrTHashTable<GrTextStrike, Key, 8> fCache;
michael@0	119	// for LRU
michael@0	120	GrTextStrike* fHead;
michael@0	121	GrTextStrike* fTail;
michael@0	122
michael@0	123	GrGpu* fGpu;
michael@0	124	GrAtlasMgr* fAtlasMgr[kAtlasCount];
michael@0	125
michael@0	126	GrTextStrike* generateStrike(GrFontScaler*, const Key&);
michael@0	127	inline void detachStrikeFromList(GrTextStrike*);
michael@0	128	void purgeStrike(GrTextStrike* strike);
michael@0	129	};
michael@0	130
michael@0	131	#endif