gfx/2d/NativeFontResourceFreeType.h

   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       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(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       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