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NativeFontResourceFreeType.h (2603B)

      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_NativeFontResourceFreeType_h
      8 #define mozilla_gfx_NativeFontResourceFreeType_h
      9 
     10 #include "2D.h"
     11 
     12 #include <cairo-ft.h>
     13 #include "mozilla/UniquePtr.h"
     14 
     15 namespace mozilla {
     16 namespace gfx {
     17 
     18 class NativeFontResourceFreeType
     19    : public NativeFontResource,
     20      public SharedFTFaceRefCountedData<NativeFontResourceFreeType> {
     21 public:
     22  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(NativeFontResourceFreeType, override)
     23 
     24 #ifdef MOZ_WIDGET_ANDROID
     25  static already_AddRefed<NativeFontResourceFreeType> Create(
     26      const uint8_t* aFontData, uint32_t aDataLength,
     27      FT_Library aFTLibrary = nullptr);
     28 
     29  already_AddRefed<UnscaledFont> CreateUnscaledFont(
     30      uint32_t aIndex, const uint8_t* aInstanceData,
     31      uint32_t aInstanceDataLength) override;
     32 #endif
     33 
     34  ~NativeFontResourceFreeType();
     35 
     36  already_AddRefed<SharedFTFace> CloneFace(int aFaceIndex = 0) override;
     37 
     38 protected:
     39  NativeFontResourceFreeType(UniquePtr<uint8_t[]>&& aFontData,
     40                             uint32_t aDataLength,
     41                             FT_Library aFTLibrary = nullptr);
     42 
     43  template <class T>
     44  static already_AddRefed<T> CreateInternal(const uint8_t* aFontData,
     45                                            uint32_t aDataLength,
     46                                            FT_Library aFTLibrary);
     47 
     48  UniquePtr<uint8_t[]> mFontData;
     49  uint32_t mDataLength;
     50  FT_Library mFTLibrary;
     51 };
     52 
     53 #ifdef MOZ_WIDGET_GTK
     54 class NativeFontResourceFontconfig final : public NativeFontResourceFreeType {
     55 public:
     56  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(NativeFontResourceFontconfig,
     57                                          override)
     58 
     59  static already_AddRefed<NativeFontResourceFontconfig> Create(
     60      const uint8_t* aFontData, uint32_t aDataLength,
     61      FT_Library aFTLibrary = nullptr);
     62 
     63  already_AddRefed<UnscaledFont> CreateUnscaledFont(
     64      uint32_t aIndex, const uint8_t* aInstanceData,
     65      uint32_t aInstanceDataLength) final;
     66 
     67 private:
     68  friend class NativeFontResourceFreeType;
     69 
     70  NativeFontResourceFontconfig(UniquePtr<uint8_t[]>&& aFontData,
     71                               uint32_t aDataLength,
     72                               FT_Library aFTLibrary = nullptr);
     73 };
     74 #endif
     75 
     76 }  // namespace gfx
     77 }  // namespace mozilla
     78 
     79 #endif  // mozilla_gfx_NativeFontResourceFreeType_h