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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/thebes/gfxFT2Fonts.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/thebes/gfxFT2Fonts.h')
-rw-r--r--gfx/thebes/gfxFT2Fonts.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/gfx/thebes/gfxFT2Fonts.h b/gfx/thebes/gfxFT2Fonts.h
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_FT2FONTS_H
+#define GFX_FT2FONTS_H
+
+#include "mozilla/MemoryReporting.h"
+#include "cairo.h"
+#include "gfxTypes.h"
+#include "gfxFont.h"
+#include "gfxFT2FontBase.h"
+#include "gfxContext.h"
+#include "gfxFontUtils.h"
+#include "gfxUserFontSet.h"
+
+class FT2FontEntry;
+
+class gfxFT2Font : public gfxFT2FontBase {
+public: // new functions
+ gfxFT2Font(cairo_scaled_font_t *aCairoFont,
+ FT2FontEntry *aFontEntry,
+ const gfxFontStyle *aFontStyle,
+ bool aNeedsBold);
+ virtual ~gfxFT2Font ();
+
+ FT2FontEntry *GetFontEntry();
+
+ struct CachedGlyphData {
+ CachedGlyphData()
+ : glyphIndex(0xffffffffU) { }
+
+ CachedGlyphData(uint32_t gid)
+ : glyphIndex(gid) { }
+
+ uint32_t glyphIndex;
+ int32_t lsbDelta;
+ int32_t rsbDelta;
+ int32_t xAdvance;
+ };
+
+ const CachedGlyphData* GetGlyphDataForChar(uint32_t ch) {
+ CharGlyphMapEntryType *entry = mCharGlyphCache.PutEntry(ch);
+
+ if (!entry)
+ return nullptr;
+
+ if (entry->mData.glyphIndex == 0xffffffffU) {
+ // this is a new entry, fill it
+ FillGlyphDataForChar(ch, &entry->mData);
+ }
+
+ return &entry->mData;
+ }
+
+ virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+ virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+
+protected:
+ virtual bool ShapeText(DrawTarget *aDrawTarget,
+ const char16_t *aText,
+ uint32_t aOffset,
+ uint32_t aLength,
+ Script aScript,
+ bool aVertical,
+ gfxShapedText *aShapedText) override;
+
+ void FillGlyphDataForChar(uint32_t ch, CachedGlyphData *gd);
+
+ void AddRange(const char16_t *aText,
+ uint32_t aOffset,
+ uint32_t aLength,
+ gfxShapedText *aShapedText);
+
+ typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData> CharGlyphMapEntryType;
+ typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap;
+ CharGlyphMap mCharGlyphCache;
+};
+
+#endif /* GFX_FT2FONTS_H */
+