sergeyv | af102be | 2016-09-09 18:02:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | #pragma once |
| 18 | #include "../utils/RingBuffer.h" |
| 19 | |
| 20 | #include <utils/String8.h> |
| 21 | |
| 22 | namespace android { |
| 23 | namespace uirenderer { |
| 24 | |
| 25 | class CacheTexture; |
| 26 | struct CachedGlyphInfo; |
| 27 | |
| 28 | // Tracks glyph uploads and recent rendered/skipped glyphs, so it can give an idea |
| 29 | // what a missing character is: skipped glyph, wrong coordinates in cache texture etc. |
| 30 | class FontCacheHistoryTracker { |
| 31 | public: |
| 32 | void glyphRendered(CachedGlyphInfo*, int penX, int penY); |
| 33 | void glyphUploaded(CacheTexture*, uint32_t x, uint32_t y, uint16_t glyphW, uint16_t glyphH); |
| 34 | void glyphsCleared(CacheTexture*); |
| 35 | void frameCompleted(); |
| 36 | |
| 37 | void dump(String8& log) const; |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 38 | |
sergeyv | af102be | 2016-09-09 18:02:07 -0700 | [diff] [blame] | 39 | private: |
| 40 | struct CachedGlyph { |
| 41 | void* texture; |
| 42 | uint16_t generation; |
| 43 | uint16_t startX; |
| 44 | uint16_t startY; |
| 45 | uint16_t bitmapW; |
| 46 | uint16_t bitmapH; |
| 47 | }; |
| 48 | |
| 49 | struct RenderEntry { |
| 50 | CachedGlyph glyph; |
| 51 | int penX; |
| 52 | int penY; |
| 53 | }; |
| 54 | |
| 55 | static void dumpCachedGlyph(String8& log, const CachedGlyph& glyph); |
| 56 | static void dumpRenderEntry(String8& log, const RenderEntry& entry); |
| 57 | static void dumpUploadEntry(String8& log, const CachedGlyph& glyph); |
| 58 | |
| 59 | RingBuffer<RenderEntry, 300> mRenderHistory; |
| 60 | RingBuffer<CachedGlyph, 120> mUploadHistory; |
| 61 | uint16_t generation = 0; |
| 62 | }; |
| 63 | |
John Reck | 1bcacfd | 2017-11-03 10:12:19 -0700 | [diff] [blame] | 64 | }; // namespace uirenderer |
| 65 | }; // namespace android |