gecko-dev/gfx/2d/ScaledFontFontconfig.h
Lee Salzman 2b03a82ba0 Bug 1584268 - only instantiate Cairo fonts when drawing to Cairo target. r=jfkthame
This removes a lot of old cruft in thebes to instantiate Cairo scaled fonts.
Instead, we only instantiate the Cairo scaled font inside Moz2D when we actually
need it for DrawTargetCairo. This thus gets rid of the duplicated code we had
inside both Moz2D and thebes to deal with Cairo scaled fonts.

Differential Revision: https://phabricator.services.mozilla.com/D47297

--HG--
extra : moz-landing-system : lando
2019-10-01 21:56:30 +00:00

92 lines
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_
#define MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_
#include "ScaledFontBase.h"
#include <cairo-ft.h>
namespace mozilla {
namespace gfx {
class NativeFontResourceFontconfig;
class UnscaledFontFontconfig;
class ScaledFontFontconfig : public ScaledFontBase {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontFontconfig, override)
ScaledFontFontconfig(RefPtr<SharedFTFace>&& aFace, FcPattern* aPattern,
const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize);
FontType GetType() const override { return FontType::FONTCONFIG; }
#ifdef USE_SKIA
SkTypeface* CreateSkTypeface() override;
void SetupSkFontDrawOptions(SkFont& aFont) override;
#endif
AntialiasMode GetDefaultAAMode() override;
bool CanSerialize() override { return true; }
bool GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton) override;
bool GetWRFontInstanceOptions(
Maybe<wr::FontInstanceOptions>* aOutOptions,
Maybe<wr::FontInstancePlatformOptions>* aOutPlatformOptions,
std::vector<FontVariation>* aOutVariations) override;
bool HasVariationSettings() override;
protected:
#ifdef USE_CAIRO_SCALED_FONT
cairo_font_face_t* CreateCairoFontFace(
cairo_font_options_t* aFontOptions) override;
#endif
private:
friend class NativeFontResourceFontconfig;
friend class UnscaledFontFontconfig;
struct InstanceData {
enum {
AUTOHINT = 1 << 0,
EMBEDDED_BITMAP = 1 << 1,
EMBOLDEN = 1 << 2,
HINT_METRICS = 1 << 3,
LCD_VERTICAL = 1 << 4,
SUBPIXEL_BGR = 1 << 5,
};
explicit InstanceData(FcPattern* aPattern);
InstanceData(const wr::FontInstanceOptions* aOptions,
const wr::FontInstancePlatformOptions* aPlatformOptions);
void SetupFontOptions(cairo_font_options_t* aFontOptions,
int* aOutLoadFlags,
unsigned int* aOutSynthFlags) const;
uint8_t mFlags;
AntialiasMode mAntialias;
FontHinting mHinting;
uint8_t mLcdFilter;
};
ScaledFontFontconfig(RefPtr<SharedFTFace>&& aFace,
const InstanceData& aInstanceData,
const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize);
RefPtr<SharedFTFace> mFace;
InstanceData mInstanceData;
};
} // namespace gfx
} // namespace mozilla
#endif /* MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_ */