1 /*
2 * Copyright 2011, The Android Open Source Project
3 * Copyright 2011, Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #ifndef _ANDROID_GRAPHICS_HARF_BUZZ_NG_FACE_SKIA_H_
28 #define _ANDROID_GRAPHICS_HARF_BUZZ_NG_FACE_SKIA_H_
29
30 #include <SkScalar.h>
31 #include <SkPaint.h>
32
33 #include <hb.h>
34
35 namespace android {
36
37 static inline float
HBFixedToFloat(hb_position_t v)38 HBFixedToFloat (hb_position_t v)
39 {
40 return scalbnf (v, -8);
41 }
42
43 static inline hb_position_t
HBFloatToFixed(float v)44 HBFloatToFixed (float v)
45 {
46 return scalbnf (v, +8);
47 }
48
SkScalarToHBFixed(SkScalar value)49 static inline hb_position_t SkScalarToHBFixed(SkScalar value) {
50 return HBFloatToFixed(SkScalarToFloat(value));
51 }
52
53 hb_blob_t* harfbuzzSkiaReferenceTable(hb_face_t* face, hb_tag_t tag, void* userData);
54
55 hb_font_t* createFont(hb_face_t* face, SkPaint* paint, float sizeX, float sizeY);
56
57 } // namespace android
58
59 #endif // _ANDROID_GRAPHICS_HARF_BUZZ_NG_FACE_SKIA_H_
60