gfx/2d/ScaledFontDWrite.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0 2 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef MOZILLA_GFX_SCALEDFONTDWRITE_H_
michael@0 7 #define MOZILLA_GFX_SCALEDFONTDWRITE_H_
michael@0 8
michael@0 9 #include <dwrite.h>
michael@0 10 #include "ScaledFontBase.h"
michael@0 11
michael@0 12 struct ID2D1GeometrySink;
michael@0 13
michael@0 14 namespace mozilla {
michael@0 15 namespace gfx {
michael@0 16
michael@0 17 class ScaledFontDWrite MOZ_FINAL : public ScaledFontBase
michael@0 18 {
michael@0 19 public:
michael@0 20 MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontDwrite)
michael@0 21 ScaledFontDWrite(IDWriteFontFace *aFont, Float aSize)
michael@0 22 : mFontFace(aFont)
michael@0 23 , ScaledFontBase(aSize)
michael@0 24 {}
michael@0 25 ScaledFontDWrite(uint8_t *aData, uint32_t aSize, uint32_t aIndex, Float aGlyphSize);
michael@0 26
michael@0 27 virtual FontType GetType() const { return FontType::DWRITE; }
michael@0 28
michael@0 29 virtual TemporaryRef<Path> GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget);
michael@0 30 virtual void CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, BackendType aBackendType, const Matrix *aTransformHint);
michael@0 31
michael@0 32 void CopyGlyphsToSink(const GlyphBuffer &aBuffer, ID2D1GeometrySink *aSink);
michael@0 33
michael@0 34 virtual bool GetFontFileData(FontFileDataOutput aDataCallback, void *aBaton);
michael@0 35
michael@0 36 virtual AntialiasMode GetDefaultAAMode();
michael@0 37
michael@0 38 #ifdef USE_SKIA
michael@0 39 virtual SkTypeface* GetSkTypeface()
michael@0 40 {
michael@0 41 MOZ_ASSERT(false, "Skia and DirectWrite do not mix");
michael@0 42 return nullptr;
michael@0 43 }
michael@0 44 #endif
michael@0 45
michael@0 46 RefPtr<IDWriteFontFace> mFontFace;
michael@0 47 };
michael@0 48
michael@0 49 class GlyphRenderingOptionsDWrite : public GlyphRenderingOptions
michael@0 50 {
michael@0 51 public:
michael@0 52 MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GlyphRenderingOptionsDWrite)
michael@0 53 GlyphRenderingOptionsDWrite(IDWriteRenderingParams *aParams)
michael@0 54 : mParams(aParams)
michael@0 55 {
michael@0 56 }
michael@0 57
michael@0 58 virtual FontType GetType() const { return FontType::DWRITE; }
michael@0 59
michael@0 60 private:
michael@0 61 friend class DrawTargetD2D;
michael@0 62 friend class DrawTargetD2D1;
michael@0 63
michael@0 64 RefPtr<IDWriteRenderingParams> mParams;
michael@0 65 };
michael@0 66
michael@0 67 }
michael@0 68 }
michael@0 69
michael@0 70 #endif /* MOZILLA_GFX_SCALEDFONTDWRITE_H_ */

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