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Unified Diff: src/gpu/GrBatchFontCache.h

Issue 1050633002: Revert of BitmapTextBatch and BitmapTextBlob (Closed) Base URL: https://skia.googlesource.com/skia.git@dfpr_take_2
Patch Set: Created 5 years, 9 months ago
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Index: src/gpu/GrBatchFontCache.h
diff --git a/src/gpu/GrBatchFontCache.h b/src/gpu/GrBatchFontCache.h
deleted file mode 100644
index 6300fbe212f1260308a8203fb5fbca9497eb7ea2..0000000000000000000000000000000000000000
--- a/src/gpu/GrBatchFontCache.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrBatchFontCache_DEFINED
-#define GrBatchFontCache_DEFINED
-
-#include "GrBatchAtlas.h"
-#include "GrDrawTarget.h"
-#include "GrFontScaler.h"
-#include "GrGlyph.h"
-#include "SkTDynamicHash.h"
-#include "SkVarAlloc.h"
-
-class GrBatchFontCache;
-class GrBatchTarget;
-class GrGpu;
-
-/**
- * The GrBatchTextStrike manages a pool of CPU backing memory for Glyph Masks. This backing memory
- * is abstracted by GrGlyph, and indexed by a PackedID and GrFontScaler. The GrFontScaler is what
- * actually creates the mask.
- */
-class GrBatchTextStrike {
-public:
- GrBatchTextStrike(GrBatchFontCache*, const GrFontDescKey* fontScalerKey);
- ~GrBatchTextStrike();
-
- const GrFontDescKey* getFontScalerKey() const { return fFontScalerKey; }
- GrBatchFontCache* getBatchFontCache() const { return fBatchFontCache; }
-
- inline GrGlyph* getGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler) {
- GrGlyph* glyph = fCache.find(packed);
- if (NULL == glyph) {
- glyph = this->generateGlyph(packed, scaler);
- }
- return glyph;
- }
-
- // returns true if glyph (or glyph+padding for distance field)
- // is too large to ever fit in texture atlas subregions (GrPlots)
- bool glyphTooLargeForAtlas(GrGlyph*);
- // returns true if glyph successfully added to texture atlas, false otherwise
- bool addGlyphToAtlas(GrBatchTarget*, GrGlyph*, GrFontScaler*);
-
- // testing
- int countGlyphs() const { return fCache.count(); }
-
- // remove any references to this plot
- void removeID(GrBatchAtlas::AtlasID);
-
- static const GrFontDescKey& GetKey(const GrBatchTextStrike& ts) {
- return *(ts.fFontScalerKey);
- }
- static uint32_t Hash(const GrFontDescKey& key) {
- return key.getHash();
- }
-
-private:
- SkTDynamicHash<GrGlyph, GrGlyph::PackedID> fCache;
- SkAutoTUnref<const GrFontDescKey> fFontScalerKey;
- SkVarAlloc fPool;
-
- GrBatchFontCache* fBatchFontCache;
- int fAtlasedGlyphs;
-
- GrGlyph* generateGlyph(GrGlyph::PackedID packed, GrFontScaler* scaler);
-
- friend class GrBatchFontCache;
-};
-
-/*
- * GrBatchFontCache manages strikes which are indexed by a GrFontScaler. These strikes can then be
- * used to individual Glyph Masks. The GrBatchFontCache also manages GrBatchAtlases, though this is
- * more or less transparent to the client(aside from atlasGeneration, described below)
- */
-class GrBatchFontCache {
-public:
- GrBatchFontCache();
- ~GrBatchFontCache();
-
- // Initializes the GrBatchFontCache on the owning GrContext
- void init(GrContext*);
-
- inline GrBatchTextStrike* getStrike(GrFontScaler* scaler) {
-
- GrBatchTextStrike* strike = fCache.find(*(scaler->getKey()));
- if (NULL == strike) {
- strike = this->generateStrike(scaler);
- }
- return strike;
- }
-
- bool hasGlyph(GrGlyph* glyph);
-
- // To ensure the GrBatchAtlas does not evict the Glyph Mask from its texture backing store,
- // the client must pass in the currentToken from the GrBatchTarget along with the GrGlyph
- void setGlyphRefToken(GrGlyph*, GrBatchAtlas::BatchToken);
-
- // add to texture atlas that matches this format
- bool addToAtlas(GrBatchTextStrike*, GrBatchAtlas::AtlasID*, GrBatchTarget*,
- GrMaskFormat, int width, int height, const void* image,
- SkIPoint16* loc);
-
- // Some clients may wish to verify the integrity of the texture backing store of the
- // GrBatchAtlas. The atlasGeneration returned below is a monitonically increasing number which
- // changes everytime something is removed from the texture backing store.
- uint64_t atlasGeneration(GrMaskFormat) const;
-
- void freeAll();
-
- GrTexture* getTexture(GrMaskFormat);
- GrPixelConfig getPixelConfig(GrMaskFormat) const;
-
- void dump() const;
-
-private:
- // There is a 1:1 mapping between GrMaskFormats and atlas indices
- static int MaskFormatToAtlasIndex(GrMaskFormat);
- static GrMaskFormat AtlasIndexToMaskFormat(int atlasIndex);
-
- GrBatchTextStrike* generateStrike(GrFontScaler*);
-
- inline GrBatchAtlas* getAtlas(GrMaskFormat) const;
-
- static void HandleEviction(GrBatchAtlas::AtlasID, void*);
-
- SkTDynamicHash<GrBatchTextStrike, GrFontDescKey> fCache;
-
- GrBatchAtlas* fAtlases[kMaskFormatCount];
- GrBatchTextStrike* fPreserveStrike;
-};
-
-#endif
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