c79172857c
BUG=skia:5176 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1863013003 Review URL: https://codereview.chromium.org/1863013003
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkRandomScalerContext_DEFINED
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#define SkRandomScalerContext_DEFINED
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#include "SkScalerContext.h"
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#include "SkTypeface.h"
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/*
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* This scaler context is for debug only purposes. It will 'randomly' but deterministically return
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* LCD / A8 / BW / RBGA masks based off of the Glyph ID
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*/
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class SkRandomTypeface : public SkTypeface {
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public:
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SkRandomTypeface(SkTypeface* proxy, const SkPaint&, bool fakeit);
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virtual ~SkRandomTypeface();
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SkTypeface* proxy() const { return fProxy; }
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const SkPaint& paint() const { return fPaint; }
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protected:
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SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&,
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const SkDescriptor*) const override;
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void onFilterRec(SkScalerContextRec*) const override;
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SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics(
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PerGlyphInfo,
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const uint32_t* glyphIDs,
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uint32_t glyphIDsCount) const override;
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SkStreamAsset* onOpenStream(int* ttcIndex) const override;
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void onGetFontDescriptor(SkFontDescriptor*, bool* isLocal) const override;
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int onCharsToGlyphs(const void* chars, Encoding encoding,
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uint16_t glyphs[], int glyphCount) const override;
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int onCountGlyphs() const override;
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int onGetUPEM() const override;
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void onGetFamilyName(SkString* familyName) const override;
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SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
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int onGetTableTags(SkFontTableTag tags[]) const override;
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size_t onGetTableData(SkFontTableTag, size_t offset,
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size_t length, void* data) const override;
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private:
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SkTypeface* fProxy;
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SkPaint fPaint;
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bool fFakeIt;
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};
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#endif
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