1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ANDROID_HWUI_CACHED_GLYPH_INFO_H
18 #define ANDROID_HWUI_CACHED_GLYPH_INFO_H
19 
20 namespace android {
21 namespace uirenderer {
22 
23 class CacheTexture;
24 
25 struct CachedGlyphInfo {
26     // Has the cache been invalidated?
27     bool mIsValid;
28     // Location of the cached glyph in the bitmap
29     // in case we need to resize the texture or
30     // render to bitmap
31     uint32_t mStartX;
32     uint32_t mStartY;
33     uint32_t mBitmapWidth;
34     uint32_t mBitmapHeight;
35     // Also cache texture coords for the quad
36     float mBitmapMinU;
37     float mBitmapMinV;
38     float mBitmapMaxU;
39     float mBitmapMaxV;
40     // Minimize how much we call freetype
41     uint32_t mGlyphIndex;
42     float mAdvanceX;
43     float mAdvanceY;
44     // Values below contain a glyph's origin in the bitmap
45     int32_t mBitmapLeft;
46     int32_t mBitmapTop;
47     // Auto-kerning; represents a 2.6 fixed-point value with range [-1, 1].
48     int8_t mLsbDelta;
49     int8_t mRsbDelta;
50     CacheTexture* mCacheTexture;
51 };
52 
53 };  // namespace uirenderer
54 };  // namespace android
55 
56 #endif  // ANDROID_HWUI_CACHED_GLYPH_INFO_H
57