1 /* 2 * Copyright (C) 2014 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_UI_FRAME_STATS_H 18 #define ANDROID_UI_FRAME_STATS_H 19 20 #include <utils/Flattenable.h> 21 #include <utils/Timers.h> 22 #include <utils/Vector.h> 23 24 namespace android { 25 26 class FrameStats : public LightFlattenable<FrameStats> { 27 public: 28 29 /* 30 * Approximate refresh time, in nanoseconds. 31 */ 32 nsecs_t refreshPeriodNano; 33 34 /* 35 * The times in nanoseconds for when the frame contents were posted by the producer (e.g. 36 * the application). They are either explicitly set or defaulted to the time when 37 * Surface::queueBuffer() was called. 38 */ 39 Vector<nsecs_t> desiredPresentTimesNano; 40 41 /* 42 * The times in milliseconds for when the frame contents were presented on the screen. 43 */ 44 Vector<nsecs_t> actualPresentTimesNano; 45 46 /* 47 * The times in nanoseconds for when the frame contents were ready to be presented. Note that 48 * a frame can be posted and still it contents being rendered asynchronously in GL. In such a 49 * case these are the times when the frame contents were completely rendered (i.e. their fences 50 * signaled). 51 */ 52 Vector<nsecs_t> frameReadyTimesNano; 53 54 // LightFlattenable 55 bool isFixedSize() const; 56 size_t getFlattenedSize() const; 57 status_t flatten(void* buffer, size_t size) const; 58 status_t unflatten(void const* buffer, size_t size); 59 }; 60 61 }; // namespace android 62 63 #endif // ANDROID_UI_FRAME_STATS_H 64
