1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_
8 #define MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_
9 
10 #include "ScaledFontBase.h"
11 
12 #include <cairo-ft.h>
13 
14 namespace mozilla {
15 namespace gfx {
16 
17 class NativeFontResourceFontconfig;
18 class UnscaledFontFontconfig;
19 
20 class ScaledFontFontconfig : public ScaledFontBase {
21  public:
22   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontFontconfig, override)
23   ScaledFontFontconfig(cairo_scaled_font_t* aScaledFont, FcPattern* aPattern,
24                        const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize);
25   ~ScaledFontFontconfig();
26 
GetType()27   FontType GetType() const override { return FontType::FONTCONFIG; }
28 
29 #ifdef USE_SKIA
30   SkTypeface* GetSkTypeface() override;
31 #endif
32 
CanSerialize()33   bool CanSerialize() override { return true; }
34 
35   bool GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton) override;
36 
37   bool GetWRFontInstanceOptions(
38       Maybe<wr::FontInstanceOptions>* aOutOptions,
39       Maybe<wr::FontInstancePlatformOptions>* aOutPlatformOptions,
40       std::vector<FontVariation>* aOutVariations) override;
41 
42  private:
43   friend class NativeFontResourceFontconfig;
44   friend class UnscaledFontFontconfig;
45 
46   struct InstanceData {
47     enum {
48       ANTIALIAS = 1 << 0,
49       AUTOHINT = 1 << 1,
50       EMBEDDED_BITMAP = 1 << 2,
51       EMBOLDEN = 1 << 3,
52       VERTICAL_LAYOUT = 1 << 4,
53       HINT_METRICS = 1 << 5
54     };
55 
56     InstanceData(cairo_scaled_font_t* aScaledFont, FcPattern* aPattern);
57 
58     void SetupPattern(FcPattern* aPattern) const;
59     void SetupFontOptions(cairo_font_options_t* aFontOptions) const;
60     void SetupFontMatrix(cairo_matrix_t* aFontMatrix) const;
61 
62     uint8_t mFlags;
63     uint8_t mHintStyle;
64     uint8_t mSubpixelOrder;
65     uint8_t mLcdFilter;
66     Float mScale;
67     Float mSkew;
68   };
69 
70   static already_AddRefed<ScaledFont> CreateFromInstanceData(
71       const InstanceData& aInstanceData, UnscaledFontFontconfig* aUnscaledFont,
72       Float aSize, NativeFontResource* aNativeFontResource = nullptr);
73 
74   FcPattern* mPattern;
75 };
76 
77 }  // namespace gfx
78 }  // namespace mozilla
79 
80 #endif /* MOZILLA_GFX_SCALEDFONTFONTCONFIG_H_ */
81