80 lines
4.3 KiB
C
80 lines
4.3 KiB
C
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/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <apex/choreographer.h>
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#include <inttypes.h>
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#include <jni.h>
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namespace android {
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// Registers the global JVM for AChoreographer
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void AChoreographer_initJVM(JNIEnv* env);
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// Signals all AChoregorapher* instances that a new vsync period is available
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// for consumption by callbacks.
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void AChoreographer_signalRefreshRateCallbacks(int64_t vsyncPeriod);
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// Returns the current interval in ns between frames.
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// Client are expected to call this function from their frame callback function.
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// Calling this function from anywhere else will return an undefined value.
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int64_t AChoreographer_getFrameInterval(const AChoreographer* choreographer);
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// Trampoline functions allowing libandroid.so to define the NDK symbols without including
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// the entirety of libnativedisplay as a whole static lib. As libnativedisplay
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// maintains global state, libnativedisplay can never be directly statically
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// linked so that global state won't be duplicated. This way libandroid.so can
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// reroute the NDK methods into the implementations defined by libnativedisplay
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AChoreographer* AChoreographer_routeGetInstance();
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void AChoreographer_routePostFrameCallback(AChoreographer* choreographer,
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AChoreographer_frameCallback callback, void* data);
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void AChoreographer_routePostFrameCallbackDelayed(AChoreographer* choreographer,
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AChoreographer_frameCallback callback, void* data,
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long delayMillis);
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void AChoreographer_routePostFrameCallback64(AChoreographer* choreographer,
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AChoreographer_frameCallback64 callback, void* data);
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void AChoreographer_routePostFrameCallbackDelayed64(AChoreographer* choreographer,
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AChoreographer_frameCallback64 callback,
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void* data, uint32_t delayMillis);
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void AChoreographer_routePostVsyncCallback(AChoreographer* choreographer,
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AChoreographer_vsyncCallback callback, void* data);
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void AChoreographer_routeRegisterRefreshRateCallback(AChoreographer* choreographer,
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AChoreographer_refreshRateCallback callback,
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void* data);
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void AChoreographer_routeUnregisterRefreshRateCallback(AChoreographer* choreographer,
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AChoreographer_refreshRateCallback callback,
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void* data);
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int64_t AChoreographerFrameCallbackData_routeGetFrameTimeNanos(
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const AChoreographerFrameCallbackData* data);
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size_t AChoreographerFrameCallbackData_routeGetFrameTimelinesLength(
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const AChoreographerFrameCallbackData* data);
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size_t AChoreographerFrameCallbackData_routeGetPreferredFrameTimelineIndex(
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const AChoreographerFrameCallbackData* data);
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AVsyncId AChoreographerFrameCallbackData_routeGetFrameTimelineVsyncId(
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const AChoreographerFrameCallbackData* data, size_t index);
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int64_t AChoreographerFrameCallbackData_routeGetFrameTimelineExpectedPresentationTimeNanos(
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const AChoreographerFrameCallbackData* data, size_t index);
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int64_t AChoreographerFrameCallbackData_routeGetFrameTimelineDeadlineNanos(
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const AChoreographerFrameCallbackData* data, size_t index);
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// Gets the start time (dispatch time) in nanos of the callback, given a vsync ID. This does not
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// account for clients that use multiple choreographers, because callbacks that give the same vsync
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// ID may be dispatched at different times.
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int64_t AChoreographer_getStartTimeNanosForVsyncId(AVsyncId vsyncId);
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} // namespace android
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