58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
|
|
* Copyright (C) 2018 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_HB_UTILS_H
|
|
#define MINIKIN_HB_UTILS_H
|
|
|
|
#include <hb.h>
|
|
#include <cmath>
|
|
#include <memory>
|
|
|
|
namespace minikin {
|
|
|
|
inline float HBFixedToFloat(hb_position_t v) {
|
|
return scalbnf(v, -8);
|
|
}
|
|
|
|
inline hb_position_t HBFloatToFixed(float v) {
|
|
return scalbnf(v, +8);
|
|
}
|
|
|
|
struct HbBlobDeleter {
|
|
void operator()(hb_blob_t* v) { hb_blob_destroy(v); }
|
|
};
|
|
|
|
struct HbFaceDeleter {
|
|
void operator()(hb_face_t* v) { hb_face_destroy(v); }
|
|
};
|
|
|
|
struct HbFontDeleter {
|
|
void operator()(hb_font_t* v) { hb_font_destroy(v); }
|
|
};
|
|
|
|
struct HbBufferDeleter {
|
|
void operator()(hb_buffer_t* v) { hb_buffer_destroy(v); }
|
|
};
|
|
|
|
using HbBlobUniquePtr = std::unique_ptr<hb_blob_t, HbBlobDeleter>;
|
|
using HbFaceUniquePtr = std::unique_ptr<hb_face_t, HbFaceDeleter>;
|
|
using HbFontUniquePtr = std::unique_ptr<hb_font_t, HbFontDeleter>;
|
|
using HbBufferUniquePtr = std::unique_ptr<hb_buffer_t, HbBufferDeleter>;
|
|
|
|
} // namespace minikin
|
|
|
|
#endif // MINIKIN_HB_UTILS_H
|