1 files changed, 65 insertions, 0 deletions
diff --git a/gfx/2d/ScaledFontCairo.cpp b/gfx/2d/ScaledFontCairo.cpp
new file mode 100644
index 000000000..12ab27e26
--- /dev/null
+++ b/gfx/2d/ScaledFontCairo.cpp
@@ -0,0 +1,65 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#include "ScaledFontCairo.h"
+#include "Logging.h"
+
+#ifdef MOZ_ENABLE_FREETYPE
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include "cairo-ft.h"
+#endif
+
+#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
+#include "skia/SkTypeface.h"
+#include "skia/SkTypeface_cairo.h"
+#endif
+
+#include <string>
+
+typedef struct FT_FaceRec_* FT_Face;
+
+using namespace std;
+
+namespace mozilla {
+namespace gfx {
+
+// On Linux and Android our "platform" font is a cairo_scaled_font_t and we use
+// an SkFontHost implementation that allows Skia to render using this.
+// This is mainly because FT_Face is not good for sharing between libraries, which
+// is a requirement when we consider runtime switchable backends and so on
+ScaledFontCairo::ScaledFontCairo(cairo_scaled_font_t* aScaledFont, Float aSize)
+  : ScaledFontBase(aSize)
+{ 
+  SetCairoScaledFont(aScaledFont);
+}
+
+#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
+SkTypeface* ScaledFontCairo::GetSkTypeface()
+{
+  if (!mTypeface) {
+    cairo_font_face_t* fontFace = cairo_scaled_font_get_font_face(mScaledFont);
+    FT_Face face = cairo_ft_scaled_font_lock_face(mScaledFont);
+
+    int style = SkTypeface::kNormal;
+
+    if (face->style_flags & FT_STYLE_FLAG_ITALIC)
+    style |= SkTypeface::kItalic;
+
+    if (face->style_flags & FT_STYLE_FLAG_BOLD)
+      style |= SkTypeface::kBold;
+
+    bool isFixedWidth = face->face_flags & FT_FACE_FLAG_FIXED_WIDTH;
+    cairo_ft_scaled_font_unlock_face(mScaledFont);
+
+    mTypeface = SkCreateTypefaceFromCairoFont(fontFace, (SkTypeface::Style)style, isFixedWidth);
+  }
+
+  return mTypeface;
+}
+#endif
+
+}
+}