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+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MINIKIN_FONT_FREETYPE_H
+#define MINIKIN_FONT_FREETYPE_H
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_TRUETYPE_TABLES_H
+
+#include <minikin/MinikinFont.h>
+
+// An abstraction for platform fonts, allowing Minikin to be used with
+// multiple actual implementations of fonts.
+
+namespace android {
+
+struct GlyphBitmap {
+ uint8_t *buffer;
+ int width;
+ int height;
+ int left;
+ int top;
+};
+
+class MinikinFontFreeType : public MinikinFont {
+public:
+ explicit MinikinFontFreeType(FT_Face typeface);
+
+ ~MinikinFontFreeType();
+
+ bool GetGlyph(uint32_t codepoint, uint32_t *glyph) const;
+
+ float GetHorizontalAdvance(uint32_t glyph_id,
+ const MinikinPaint &paint) const;
+
+ // If buf is NULL, just update size
+ bool GetTable(uint32_t tag, uint8_t *buf, size_t *size);
+
+ int32_t GetUniqueId() const;
+
+ // Not a virtual method, as the protocol to access rendered
+ // glyph bitmaps is probably different depending on the
+ // backend.
+ bool Render(uint32_t glyph_id,
+ const MinikinPaint &paint, GlyphBitmap *result);
+
+ MinikinFontFreeType* GetFreeType();
+
+private:
+ FT_Face mTypeface;
+ int32_t mUniqueId;
+ static int32_t sIdCounter;
+};
+
+} // namespace android
+
+#endif // MINIKIN_FONT_FREETYPE_H