| /* |
| * Copyright 2020 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. |
| */ |
| |
| #pragma once |
| |
| #include <apex/choreographer.h> |
| #include <inttypes.h> |
| #include <jni.h> |
| |
| namespace android { |
| |
| // Registers the global JVM for AChoreographer |
| void AChoreographer_initJVM(JNIEnv* env); |
| |
| // Signals all AChoregorapher* instances that a new vsync period is available |
| // for consumption by callbacks. |
| void AChoreographer_signalRefreshRateCallbacks(int64_t vsyncPeriod); |
| |
| // Returns the vsync id of the last frame callback. Client are expected to call |
| // this function from their frame callback function to get the vsyncId and pass |
| // it together with a buffer or transaction to the Surface Composer. Calling |
| // this function from anywhere else will return an undefined value. |
| int64_t AChoreographer_getVsyncId(const AChoreographer* choreographer); |
| |
| // Returns the deadline timestamp (in CLOCK_MONOTONIC) of the last frame callback. |
| // Client are expected to call this function from their frame callback function |
| // to get the deadline and use it to know whether a frame is likely to miss |
| // presentation. Calling this function from anywhere else will return an undefined |
| // value. |
| int64_t AChoreographer_getFrameDeadline(const AChoreographer* choreographer); |
| |
| // Returns the current interval in ns between frames. |
| // Client are expected to call this function from their frame callback function. |
| // Calling this function from anywhere else will return an undefined value. |
| int64_t AChoreographer_getFrameInterval(const AChoreographer* choreographer); |
| |
| // Trampoline functions allowing libandroid.so to define the NDK symbols without including |
| // the entirety of libnativedisplay as a whole static lib. As libnativedisplay |
| // maintains global state, libnativedisplay can never be directly statically |
| // linked so that global state won't be duplicated. This way libandroid.so can |
| // reroute the NDK methods into the implementations defined by libnativedisplay |
| AChoreographer* AChoreographer_routeGetInstance(); |
| void AChoreographer_routePostFrameCallback(AChoreographer* choreographer, |
| AChoreographer_frameCallback callback, void* data); |
| void AChoreographer_routePostFrameCallbackDelayed(AChoreographer* choreographer, |
| AChoreographer_frameCallback callback, void* data, |
| long delayMillis); |
| void AChoreographer_routePostFrameCallback64(AChoreographer* choreographer, |
| AChoreographer_frameCallback64 callback, void* data); |
| void AChoreographer_routePostFrameCallbackDelayed64(AChoreographer* choreographer, |
| AChoreographer_frameCallback64 callback, |
| void* data, uint32_t delayMillis); |
| void AChoreographer_routeRegisterRefreshRateCallback(AChoreographer* choreographer, |
| AChoreographer_refreshRateCallback callback, |
| void* data); |
| void AChoreographer_routeUnregisterRefreshRateCallback(AChoreographer* choreographer, |
| AChoreographer_refreshRateCallback callback, |
| void* data); |
| |
| } // namespace android |