1 files changed, 60 insertions, 0 deletions
diff --git a/gfx/2d/NativeFontResourceDWrite.h b/gfx/2d/NativeFontResourceDWrite.h
new file mode 100644
index 0000000000..0f3feccb18
--- /dev/null
+++ b/gfx/2d/NativeFontResourceDWrite.h
@@ -0,0 +1,60 @@
+/* -*- 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_NativeFontResourceDWrite_h
+#define mozilla_gfx_NativeFontResourceDWrite_h
+
+#include <dwrite.h>
+
+#include "2D.h"
+#include "mozilla/AlreadyAddRefed.h"
+
+namespace mozilla {
+namespace gfx {
+
+class NativeFontResourceDWrite final : public NativeFontResource {
+ public:
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(NativeFontResourceDWrite, override)
+
+  /**
+   * Creates a NativeFontResourceDWrite if data is valid. Note aFontData will be
+   * copied if required and so can be released after calling.
+   *
+   * @param aFontData the SFNT data.
+   * @param aDataLength length of data.
+   * @return Referenced NativeFontResourceDWrite or nullptr if invalid.
+   */
+  static already_AddRefed<NativeFontResourceDWrite> Create(
+      uint8_t* aFontData, uint32_t aDataLength);
+
+  already_AddRefed<UnscaledFont> CreateUnscaledFont(
+      uint32_t aIndex, const uint8_t* aInstanceData,
+      uint32_t aInstanceDataLength) final;
+
+ private:
+  NativeFontResourceDWrite(
+      IDWriteFactory* aFactory, already_AddRefed<IDWriteFontFile> aFontFile,
+      already_AddRefed<IDWriteFontFileStream> aFontFileStream,
+      DWRITE_FONT_FACE_TYPE aFaceType, uint32_t aNumberOfFaces,
+      size_t aDataLength)
+      : NativeFontResource(aDataLength),
+        mFactory(aFactory),
+        mFontFile(aFontFile),
+        mFontFileStream(aFontFileStream),
+        mFaceType(aFaceType),
+        mNumberOfFaces(aNumberOfFaces) {}
+
+  IDWriteFactory* mFactory;
+  RefPtr<IDWriteFontFile> mFontFile;
+  RefPtr<IDWriteFontFileStream> mFontFileStream;
+  DWRITE_FONT_FACE_TYPE mFaceType;
+  uint32_t mNumberOfFaces;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_NativeFontResourceDWrite_h