144 lines
4.9 KiB
C++
144 lines
4.9 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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#include "nsDataHashtable.h"
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#include "nsClassHashtable.h"
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typedef size_t ByteCount;
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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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// 10.4Fx
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class FontDirWrapper {
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public:
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uint8_t fontDir[1024];
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ByteCount sizer;
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FontDirWrapper(ByteCount sized, uint8_t *dir) {
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if (MOZ_UNLIKELY(sized < 1 || sized > 1023)) return;
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sizer = sized;
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memcpy(fontDir, dir, sizer);
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}
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~FontDirWrapper() { }
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};
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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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virtual already_AddRefed<gfxASurface>
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CreateOffscreenSurface(const IntSize& aSize,
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gfxImageFormat aFormat) override;
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already_AddRefed<mozilla::gfx::ScaledFont>
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GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont) override;
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nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName) 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 gfxFontEntry* LookupLocalFont(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle) override;
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virtual gfxPlatformFontList* CreatePlatformFontList() override;
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virtual gfxFontEntry* MakePlatformFont(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle,
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const uint8_t* aFontData,
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uint32_t aLength) override;
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bool IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags) override;
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nsresult GetFontList(nsIAtom *aLangGroup,
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const nsACString& aGenericFamily,
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nsTArray<nsString>& aListOfFonts) override;
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nsresult UpdateFontList() override;
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virtual void GetCommonFallbackFonts(uint32_t aCh, uint32_t aNextCh,
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int32_t 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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nsAString& aSystemFontName,
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gfxFontStyle &aFontStyle,
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float aDevPixPerCSSPixel);
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virtual bool CanRenderContentToDataSurface() const override {
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return true;
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}
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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 bool UseAcceleratedSkiaCanvas() override;
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virtual bool UseProgressivePaint() override;
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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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/* ATS acceleration functions for 10.4 */
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ByteCount GetCachedDirSizeForFont(nsString name);
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uint8_t *GetCachedDirForFont(nsString name);
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void SetCachedDirForFont(nsString name, uint8_t* table, ByteCount sizer);
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nsClassHashtable< nsStringHashKey, FontDirWrapper > PlatformFontDirCache;
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protected:
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bool AccelerateLayersByDefault() 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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int32_t mOSXVersion; // 10.4
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};
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#endif /* GFX_PLATFORM_MAC_H */
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