зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
3.2 KiB
C++
101 строка
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_PLATFORM_MAC_H
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#define GFX_PLATFORM_MAC_H
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#include "nsTArrayForwardDeclare.h"
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#include "gfxPlatform.h"
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#include "mozilla/LookAndFeel.h"
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namespace mozilla {
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namespace gfx {
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class DrawTarget;
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class VsyncSource;
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} // namespace gfx
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} // namespace mozilla
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class gfxPlatformMac : public gfxPlatform {
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public:
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gfxPlatformMac();
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virtual ~gfxPlatformMac();
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static gfxPlatformMac *GetPlatform() {
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return (gfxPlatformMac*) gfxPlatform::GetPlatform();
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}
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bool UsesTiling() const override;
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bool ContentUsesTiling() const override;
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virtual already_AddRefed<gfxASurface>
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CreateOffscreenSurface(const IntSize& aSize,
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gfxImageFormat aFormat) override;
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gfxFontGroup*
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CreateFontGroup(const mozilla::FontFamilyList& aFontFamilyList,
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const gfxFontStyle *aStyle,
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gfxTextPerfMetrics* aTextPerf,
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gfxUserFontSet *aUserFontSet,
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gfxFloat aDevToCssSize) override;
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virtual gfxPlatformFontList* CreatePlatformFontList() override;
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void
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ReadSystemFontList(InfallibleTArray<mozilla::dom::SystemFontListEntry>*
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aFontList) override;
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bool IsFontFormatSupported(uint32_t aFormatFlags) override;
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virtual void GetCommonFallbackFonts(uint32_t aCh, uint32_t aNextCh,
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Script aRunScript,
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nsTArray<const char*>& aFontList) override;
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// lookup the system font for a particular system font type and set
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// the name and style characteristics
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static void
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LookupSystemFont(mozilla::LookAndFeel::FontID aSystemFontID,
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nsACString& aSystemFontName,
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gfxFontStyle &aFontStyle,
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float aDevPixPerCSSPixel);
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virtual bool SupportsApzWheelInput() const override {
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return true;
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}
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bool RespectsFontStyleSmoothing() const override {
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// gfxMacFont respects the font smoothing hint.
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return true;
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}
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bool RequiresAcceleratedGLContextForCompositorOGL() const override {
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// On OS X in a VM, unaccelerated CompositorOGL shows black flashes, so we
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// require accelerated GL for CompositorOGL but allow unaccelerated GL for
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// BasicCompositor.
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return true;
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}
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virtual already_AddRefed<mozilla::gfx::VsyncSource> CreateHardwareVsyncSource() override;
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// lower threshold on font anti-aliasing
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uint32_t GetAntiAliasingThreshold() { return mFontAntiAliasingThreshold; }
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protected:
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bool AccelerateLayersByDefault() override;
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BackendPrefsData GetBackendPrefs() const override;
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bool CheckVariationFontSupport() override;
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private:
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virtual void GetPlatformCMSOutputProfile(void* &mem, size_t &size) override;
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// read in the pref value for the lower threshold on font anti-aliasing
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static uint32_t ReadAntiAliasingThreshold();
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uint32_t mFontAntiAliasingThreshold;
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};
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#endif /* GFX_PLATFORM_MAC_H */
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