FastMixer.cpp revision 1295bb4dcff7b29c75cd23746816df12a871d72c
197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten/* 297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * Copyright (C) 2012 The Android Open Source Project 397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * 497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * you may not use this file except in compliance with the License. 697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * You may obtain a copy of the License at 797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * 897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * 1097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * Unless required by applicable law or agreed to in writing, software 1197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 1297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * See the License for the specific language governing permissions and 1497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten * limitations under the License. 1597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten */ 1697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 1797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define LOG_TAG "FastMixer" 1897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten//#define LOG_NDEBUG 0 1997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 2097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <sys/atomics.h> 2197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <time.h> 2297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <utils/Log.h> 23d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten#include <utils/Trace.h> 2497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <system/audio.h> 2597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 2697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <cpustats/CentralTendencyStatistics.h> 2742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten#include <cpustats/ThreadCpuUsage.h> 2897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 2997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "AudioMixer.h" 3097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "FastMixer.h" 3197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 3297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_HOT_IDLE_NS 1000000L // 1 ms: time to sleep while hot idling 3397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_DEFAULT_NS 999999999L // ~1 sec: default time to sleep 34288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten#define MAX_WARMUP_CYCLES 10 // maximum number of loop cycles to wait for warmup 3597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 3697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastennamespace android { 3797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 3897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten// Fast mixer thread 3997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenbool FastMixer::threadLoop() 4097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 4197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten static const FastMixerState initial; 4297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *previous = &initial, *current = &initial; 4397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState preIdle; // copy of state before we went into idle 4497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec oldTs = {0, 0}; 4597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool oldTsValid = false; 4697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long slopNs = 0; // accumulated time we've woken up too early (> 0) or too late (< 0) 4797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long sleepNs = -1; // -1: busy wait, 0: sched_yield, > 0: nanosleep 4897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTrackNames[FastMixerState::kMaxFastTracks]; // handles used by mixer to identify tracks 4997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int generations[FastMixerState::kMaxFastTracks]; // last observed mFastTracks[i].mGeneration 5097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned i; 5197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 5297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 5397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = 0; 5497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 5597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Sink *outputSink = NULL; 5697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int outputSinkGen = 0; 5797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioMixer* mixer = NULL; 5897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten short *mixBuffer = NULL; 5997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten enum {UNDEFINED, MIXED, ZEROED} mixBufferState = UNDEFINED; 6097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format format = Format_Invalid; 6197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned sampleRate = 0; 6297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTracksGen = 0; 6397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long periodNs = 0; // expected period; the time required to render one mix buffer 64288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long underrunNs = 0; // underrun likely when write cycle is greater than this value 65288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long overrunNs = 0; // overrun likely when write cycle is less than this value 66288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long warmupNs = 0; // warmup complete when write cycle is greater than to this value 6797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerDumpState dummyDumpState, *dumpState = &dummyDumpState; 6897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool ignoreNextOverrun = true; // used to ignore initial overrun and first after an underrun 6997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 7042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec oldLoad = {0, 0}; // previous value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 7142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool oldLoadValid = false; // whether oldLoad is valid 7242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = 0; 7342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool full = false; // whether we have collected at least kSamplingN samples 7442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ThreadCpuUsage tcu; // for reading the current CPU clock frequency in kHz 7597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 7697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned coldGen = 0; // last observed mColdGen 77288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool isWarm = false; // true means ready to mix, false means wait for warmup before mixing 78288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten struct timespec measuredWarmupTs = {0, 0}; // how long did it take for warmup to complete 79288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten uint32_t warmupCycles = 0; // counter of number of loop cycles required to warmup 80fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten NBAIO_Sink* teeSink = NULL; // if non-NULL, then duplicate write() to this non-blocking sink 8197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 8297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (;;) { 8397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 8497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // either nanosleep, sched_yield, or busy wait 8597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs >= 0) { 8697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs > 0) { 8797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(sleepNs < 1000000000); 8897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const struct timespec req = {0, sleepNs}; 8997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nanosleep(&req, NULL); 9097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 9197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sched_yield(); 9297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 9397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 9497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // default to long sleep for next cycle 9597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_DEFAULT_NS; 9697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 9797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // poll for state change 9897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *next = mSQ.poll(); 9997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next == NULL) { 10097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // continue to use the default initial state until a real state is available 10197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(current == &initial && previous == &initial); 10297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = current; 10397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 10497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 10597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState::Command command = next->mCommand; 10697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next != current) { 10797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 10897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // As soon as possible of learning of a new dump area, start using it 10997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState = next->mDumpState != NULL ? next->mDumpState : &dummyDumpState; 110fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten teeSink = next->mTeeSink; 11197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 11297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // We want to always have a valid reference to the previous (non-idle) state. 11397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // However, the state queue only guarantees access to current and previous states. 11497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // So when there is a transition from a non-idle state into an idle state, we make a 11597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // copy of the last known non-idle state so it is still available on return from idle. 11697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // The possible transitions are: 11797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> non-idle update previous from current in-place 11897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> idle update previous from copy of current 11997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> idle don't update previous 12097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> non-idle don't update previous 12197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (!(current->mCommand & FastMixerState::IDLE)) { 12297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (command & FastMixerState::IDLE) { 12397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten preIdle = *current; 12497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = &preIdle; 12597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 12642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = false; 12797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 12897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 12997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 13097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 13197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = next; 13297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 13397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 13497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = NULL; // not referenced again 13597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 13697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 13797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mCommand = command; 13897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 13997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (command) { 14097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 14197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 14297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 14397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 14497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 14597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only perform a cold idle command once 14621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten // FIXME consider checking previous state and only perform if previous != COLD_IDLE 14797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mColdGen != coldGen) { 14897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t *coldFutexAddr = current->mColdFutexAddr; 14997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(coldFutexAddr != NULL); 15097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t old = android_atomic_dec(coldFutexAddr); 15197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (old <= 0) { 15297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten __futex_syscall4(coldFutexAddr, FUTEX_WAIT_PRIVATE, old - 1, NULL); 15397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 154288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This may be overly conservative; there could be times that the normal mixer 155288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // requests such a brief cold idle that it doesn't require resetting this flag. 156288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = false; 157288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec = 0; 158288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec = 0; 159288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupCycles = 0; 16097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = -1; 16197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten coldGen = current->mColdGen; 16242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds = 0; 16342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = false; 16404a4ca4217e9b30342d5865024c340013d7184e8Glenn Kasten oldTsValid = !clock_gettime(CLOCK_MONOTONIC, &oldTs); 16597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 16697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 16797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 16897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 16997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 17097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 17197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 17297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten return false; 17397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 17497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 17597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 17697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 17797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 17897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten LOG_FATAL("bad command %d", command); 17997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 18097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 18197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // there is a non-idle state available to us; did the state change? 18297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten size_t frameCount = current->mFrameCount; 18397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current != previous) { 18497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 18597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // handle state change here, but since we want to diff the state, 18697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we're prepared for previous == &initial the first time through 18797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned previousTrackMask; 18897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 18997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in output HAL configuration 19097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format previousFormat = format; 19197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mOutputSinkGen != outputSinkGen) { 19297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSink = current->mOutputSink; 19397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSinkGen = current->mOutputSinkGen; 19497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (outputSink == NULL) { 19597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = Format_Invalid; 19697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = 0; 19797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 19897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = outputSink->format(); 19997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = Format_sampleRate(format); 20097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(Format_channelCount(format) == 2); 20197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 20221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mSampleRate = sampleRate; 20397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 20497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 20597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((format != previousFormat) || (frameCount != previous->mFrameCount)) { 20697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME to avoid priority inversion, don't delete here 20797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 20897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = NULL; 20997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 21097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = NULL; 21197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (frameCount > 0 && sampleRate > 0) { 21297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME new may block for unbounded time at internal mutex of the heap 21397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // implementation; it would be better to have normal mixer allocate for us 21497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // to avoid blocking here and to prevent possible priority inversion 21597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = new AudioMixer(frameCount, sampleRate, FastMixerState::kMaxFastTracks); 21697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = new short[frameCount * 2]; 21797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = (frameCount * 1000000000LL) / sampleRate; // 1.00 21897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = (frameCount * 1750000000LL) / sampleRate; // 1.75 21997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten overrunNs = (frameCount * 250000000LL) / sampleRate; // 0.25 220288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupNs = (frameCount * 500000000LL) / sampleRate; // 0.50 22197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 22297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = 0; 22397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = 0; 22497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten overrunNs = 0; 22597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 22697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 22797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 22897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 22997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 23097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 23197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 23297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we need to reconfigure all active tracks 23397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = 0; 23497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen - 1; 23521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mFrameCount = frameCount; 23697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 23797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = previous->mTrackMask; 23897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 23997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 24097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in active track set 24197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 2421295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten dumpState->mTrackMask = currentTrackMask; 24397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mFastTracksGen != fastTracksGen) { 24497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 24597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name; 24697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 24797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process removed tracks first to avoid running out of track names 24897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned removedTracks = previousTrackMask & ~currentTrackMask; 24997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (removedTracks != 0) { 25097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(removedTracks); 25197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten removedTracks &= ~(1 << i); 25297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 253288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(fastTrack->mBufferProvider == NULL); 25497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 25597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 25697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 25797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->deleteTrackName(name); 25897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 25997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 26097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 26197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 262288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // don't reset track dump state, since other side is ignoring it 26397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 26497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 26597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 26697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // now process added tracks 26797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned addedTracks = currentTrackMask & ~previousTrackMask; 26897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (addedTracks != 0) { 26997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(addedTracks); 27097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten addedTracks &= ~(1 << i); 27197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 27297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 27397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL && fastTrackNames[i] == -1); 27497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 2759bd23229fdec1657398abc682ccccfce1c95f8aaJean-Michel Trivi // calling getTrackName with default channel mask 2769bd23229fdec1657398abc682ccccfce1c95f8aaJean-Michel Trivi name = mixer->getTrackName(AUDIO_CHANNEL_OUT_STEREO); 27797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 27897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = name; 27997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 28097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER, 28197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *) mixBuffer); 28297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // newly allocated track names default to full scale volume 28321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && fastTrack->mSampleRate != sampleRate) { 28421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 28521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 28621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 28721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 28821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 28997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->enable(name); 29097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 29197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 29297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 29397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 29497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // finally process modified tracks; these use the same slot 29597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but may have a different buffer provider or volume provider 29697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned modifiedTracks = currentTrackMask & previousTrackMask; 29797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (modifiedTracks != 0) { 29897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(modifiedTracks); 29997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten modifiedTracks &= ~(1 << i); 30097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 30197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mGeneration != generations[i]) { 30297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 30397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL); 30497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 30597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 30697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 30797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 30897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider == NULL) { 30997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 31097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 31197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 31297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 31397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 31421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && 31521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten fastTrack->mSampleRate != sampleRate) { 31621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 31721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 31821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } else { 31921e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 32021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::REMOVE, NULL); 32121e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 32221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 32321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 32497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // already enabled 32597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 32697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 32797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 32897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 32997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 33097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen; 33197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 33297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mNumTracks = popcount(currentTrackMask); 33397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 33497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 33597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if 1 // FIXME shouldn't need this 33697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only process state change once 33797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 33897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 33997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 34097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 34197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // do work using current state here 342288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if ((command & FastMixerState::MIX) && (mixer != NULL) && isWarm) { 34397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 344288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // for each track, update volume and check for underrun 345288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 346288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten while (currentTrackMask != 0) { 347288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten i = __builtin_ctz(currentTrackMask); 348288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten currentTrackMask &= ~(1 << i); 34997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 35097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name = fastTrackNames[i]; 35197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 35297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider != NULL) { 35397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten uint32_t vlr = fastTrack->mVolumeProvider->getVolumeLR(); 35497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 35597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr & 0xFFFF)); 35697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 35797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr >> 16)); 35897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 359288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // FIXME The current implementation of framesReady() for fast tracks 360288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // takes a tryLock, which can block 361288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // up to 1 ms. If enough active tracks all blocked in sequence, this would result 362288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // in the overall fast mix cycle being delayed. Should use a non-blocking FIFO. 363288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten size_t framesReady = fastTrack->mBufferProvider->framesReady(); 36499c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 36599c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten // I wish we had formatted trace names 36699c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten char traceName[16]; 36799c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten strcpy(traceName, "framesReady"); 36899c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten traceName[11] = i + (i < 10 ? '0' : 'A' - 10); 36999c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten traceName[12] = '\0'; 37099c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT(traceName, framesReady); 37199c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 372288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten FastTrackDump *ftDump = &dumpState->mTracks[i]; 37309474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten FastTrackUnderruns underruns = ftDump->mUnderruns; 374288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady < frameCount) { 375288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady == 0) { 37609474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mEmpty++; 37709474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_EMPTY; 378288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->disable(name); 379288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } else { 380288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // allow mixing partial buffer 38109474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mPartial++; 38209474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_PARTIAL; 383288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 384288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 38509474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten } else { 38609474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mFull++; 38709474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_FULL; 388288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 389288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 39009474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten ftDump->mUnderruns = underruns; 3911295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten ftDump->mFramesReady = framesReady; 39297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 39397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process() is CPU-bound 39497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->process(AudioBufferProvider::kInvalidPTS); 39597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = MIXED; 39697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (mixBufferState == MIXED) { 39797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 39897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 399288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool attemptedWrite = false; 400288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //bool didFullWrite = false; // dumpsys could display a count of partial writes 40197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((command & FastMixerState::WRITE) && (outputSink != NULL) && (mixBuffer != NULL)) { 40297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixBufferState == UNDEFINED) { 40397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten memset(mixBuffer, 0, frameCount * 2 * sizeof(short)); 40497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = ZEROED; 40597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 406fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten if (teeSink != NULL) { 407fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten (void) teeSink->write(mixBuffer, frameCount); 408fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten } 40997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME write() is non-blocking and lock-free for a properly implemented NBAIO sink, 41097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but this code should be modified to handle both non-blocking and blocking sinks 41197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 41299c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 413d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten Tracer::traceBegin(ATRACE_TAG, "write"); 41499c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 41597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ssize_t framesWritten = outputSink->write(mixBuffer, frameCount); 41699c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 417d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten Tracer::traceEnd(ATRACE_TAG); 41899c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 41997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 42097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (framesWritten >= 0) { 421288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(framesWritten <= frameCount); 42297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mFramesWritten += framesWritten; 423288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //if ((size_t) framesWritten == frameCount) { 424288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // didFullWrite = true; 425288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //} 42697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 42797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteErrors++; 42897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 429288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten attemptedWrite = true; 43097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME count # of writes blocked excessively, CPU usage, etc. for dump 43197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 43297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 43397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // To be exactly periodic, compute the next sleep time based on current time. 43497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // This code doesn't have long-term stability when the sink is non-blocking. 43597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME To avoid drift, use the local audio clock or watch the sink's fill status. 43697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec newTs; 43797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int rc = clock_gettime(CLOCK_MONOTONIC, &newTs); 43897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (rc == 0) { 43997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (oldTsValid) { 44097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten time_t sec = newTs.tv_sec - oldTs.tv_sec; 44197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long nsec = newTs.tv_nsec - oldTs.tv_nsec; 44297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (nsec < 0) { 44397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten --sec; 44497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nsec += 1000000000; 44597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 446288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // To avoid an initial underrun on fast tracks after exiting standby, 447288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // do not start pulling data from tracks and mixing until warmup is complete. 448288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // Warmup is considered complete after the earlier of: 449288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // first successful single write() that blocks for more than warmupNs 450288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // MAX_WARMUP_CYCLES write() attempts. 451288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This is overly conservative, but to get better accuracy requires a new HAL API. 452288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (!isWarm && attemptedWrite) { 453288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec += sec; 454288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec += nsec; 455288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (measuredWarmupTs.tv_nsec >= 1000000000) { 456288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec++; 457288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec -= 1000000000; 458288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 459288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ++warmupCycles; 460288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if ((attemptedWrite && nsec > warmupNs) || 461288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (warmupCycles >= MAX_WARMUP_CYCLES)) { 462288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = true; 463288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mMeasuredWarmupTs = measuredWarmupTs; 464288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mWarmupCycles = warmupCycles; 465288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 466288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 46797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sec > 0 || nsec > underrunNs) { 46899c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 469d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten ScopedTrace st(ATRACE_TAG, "underrun"); 47099c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 47197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 47297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("underrun: time since last cycle %d.%03ld sec", 47397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 47497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mUnderruns++; 47597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = -1; 47697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 47797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (nsec < overrunNs) { 47897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (ignoreNextOverrun) { 47997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 48097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 48197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 48297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("overrun: time since last cycle %d.%03ld sec", 48397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 48497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mOverruns++; 48597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 48697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs - overrunNs; 48797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 48897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = -1; 48997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 49097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 49197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 49242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // advance the FIFO queue bounds 49342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = bounds & (FastMixerDumpState::kSamplingN - 1); 494e58ccce45598bcf4b4874b0e87cd1eb8d05ba9a9Glenn Kasten bounds = (bounds & 0xFFFF0000) | ((bounds + 1) & 0xFFFF); 49542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (full) { 49642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds += 0x10000; 49742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else if (!(bounds & (FastMixerDumpState::kSamplingN - 1))) { 49842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = true; 49997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 50042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the delta value of clock_gettime(CLOCK_MONOTONIC) 50142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t monotonicNs = nsec; 50242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 50342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten monotonicNs += sec * 1000000000; 50442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 50542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the raw CPU load = delta value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 50642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t loadNs = 0; 50742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec newLoad; 50842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &newLoad); 50942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (rc == 0) { 51042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (oldLoadValid) { 51142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten sec = newLoad.tv_sec - oldLoad.tv_sec; 51242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec = newLoad.tv_nsec - oldLoad.tv_nsec; 51342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (nsec < 0) { 51442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten --sec; 51542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec += 1000000000; 51642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 51742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs = nsec; 51842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 51942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs += sec * 1000000000; 52042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 52142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else { 52242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // first time through the loop 52342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = true; 52442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 52542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoad = newLoad; 52642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 52742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // get the absolute value of CPU clock frequency in kHz 52842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten int cpuNum = sched_getcpu(); 52942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t kHz = tcu.getCpukHz(cpuNum); 530c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz = (kHz << 4) | (cpuNum & 0xF); 53142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // save values in FIFO queues for dumpsys 53242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // these stores #1, #2, #3 are not atomic with respect to each other, 53342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // or with respect to store #4 below 53442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mMonotonicNs[i] = monotonicNs; 53542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mLoadNs[i] = loadNs; 53642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mCpukHz[i] = kHz; 53742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // this store #4 is not atomic with respect to stores #1, #2, #3 above, but 53842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // the newest open and oldest closed halves are atomic with respect to each other 53942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mBounds = bounds; 54099c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 54199c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("cycle_ms", monotonicNs / 1000000); 54299c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("load_us", loadNs / 1000); 54399c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 54497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 54597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 54697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // first time through the loop 54797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = true; 54897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 54997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 55097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 55197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTs = newTs; 55297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 55397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // monotonic clock is broken 55497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 55597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 55697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 55797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 55842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten 55997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } // for (;;) 56097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 56197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // never return 'true'; Thread::_threadLoop() locks mutex which can result in priority inversion 56297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 56397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 56497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::FastMixerDumpState() : 56597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mCommand(FastMixerState::INITIAL), mWriteSequence(0), mFramesWritten(0), 56621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks(0), mWriteErrors(0), mUnderruns(0), mOverruns(0), 5671295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mSampleRate(0), mFrameCount(0), /* mMeasuredWarmupTs({0, 0}), */ mWarmupCycles(0), 5681295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mTrackMask(0) 56997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 57042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten , mBounds(0) 57197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 57297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 573288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_sec = 0; 574288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_nsec = 0; 57542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // sample arrays aren't accessed atomically with respect to the bounds, 57642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // so clearing reduces chance for dumpsys to read random uninitialized samples 57742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mMonotonicNs, 0, sizeof(mMonotonicNs)); 57842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mLoadNs, 0, sizeof(mLoadNs)); 57942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mCpukHz, 0, sizeof(mCpukHz)); 58097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 58197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 58297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::~FastMixerDumpState() 58397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 58497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 58597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 58697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenvoid FastMixerDumpState::dump(int fd) 58797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 58897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define COMMAND_MAX 32 58997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten char string[COMMAND_MAX]; 59097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (mCommand) { 59197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 59297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "INITIAL"); 59397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 59497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 59597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "HOT_IDLE"); 59697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 59797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 59897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "COLD_IDLE"); 59997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 60097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 60197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "EXIT"); 60297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 60397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 60497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX"); 60597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 60697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 60797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "WRITE"); 60897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 60997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 61097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX_WRITE"); 61197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 61297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 61397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten snprintf(string, COMMAND_MAX, "%d", mCommand); 61497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 61597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 61642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double measuredWarmupMs = (mMeasuredWarmupTs.tv_sec * 1000.0) + 617288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (mMeasuredWarmupTs.tv_nsec / 1000000.0); 61842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double mixPeriodSec = (double) mFrameCount / (double) mSampleRate; 61997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fdprintf(fd, "FastMixer command=%s writeSequence=%u framesWritten=%u\n" 62021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten " numTracks=%u writeErrors=%u underruns=%u overruns=%u\n" 62142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " sampleRate=%u frameCount=%u measuredWarmup=%.3g ms, warmupCycles=%u\n" 62242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mixPeriod=%.2f ms\n", 62397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten string, mWriteSequence, mFramesWritten, 62421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks, mWriteErrors, mUnderruns, mOverruns, 62542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mSampleRate, mFrameCount, measuredWarmupMs, mWarmupCycles, 62642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mixPeriodSec * 1e3); 62797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 62842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // find the interval of valid samples 62942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = mBounds; 63042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t newestOpen = bounds & 0xFFFF; 63142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t oldestClosed = bounds >> 16; 63242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t n = (newestOpen - oldestClosed) & 0xFFFF; 63342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (n > kSamplingN) { 63442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ALOGE("too many samples %u", n); 63542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten n = kSamplingN; 63642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 63742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency, 63842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // and adjusted CPU load in MHz normalized for CPU clock frequency 63942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten CentralTendencyStatistics wall, loadNs, kHz, loadMHz; 64042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // only compute adjusted CPU load in Hz if current CPU number and CPU clock frequency are stable 64142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool valid = false; 64242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t previousCpukHz = 0; 64342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // loop over all the samples 64442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten for (; n > 0; --n) { 64542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = oldestClosed++ & (kSamplingN - 1); 64642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t wallNs = mMonotonicNs[i]; 64742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.sample(wallNs); 64842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t sampleLoadNs = mLoadNs[i]; 64942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t sampleCpukHz = mCpukHz[i]; 65042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.sample(sampleLoadNs); 651c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten // skip bad kHz samples 652c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if ((sampleCpukHz & ~0xF) != 0) { 653c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz.sample(sampleCpukHz >> 4); 654c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if (sampleCpukHz == previousCpukHz) { 655c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double megacycles = (double) sampleLoadNs * (double) (sampleCpukHz >> 4) * 1e-12; 656c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double adjMHz = megacycles / mixPeriodSec; // _not_ wallNs * 1e9 657c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten loadMHz.sample(adjMHz); 658c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten } 65942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 66042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten previousCpukHz = sampleCpukHz; 66142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 66242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, "Simple moving statistics over last %.1f seconds:\n", wall.n() * mixPeriodSec); 66342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " wall clock time in ms per mix cycle:\n" 66442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", 66542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.mean()*1e-6, wall.minimum()*1e-6, wall.maximum()*1e-6, wall.stddev()*1e-6); 66642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " raw CPU load in us per mix cycle:\n" 66742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 66842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.mean()*1e-3, loadNs.minimum()*1e-3, loadNs.maximum()*1e-3, 66942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.stddev()*1e-3); 67042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " CPU clock frequency in MHz:\n" 67142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 67242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten kHz.mean()*1e-3, kHz.minimum()*1e-3, kHz.maximum()*1e-3, kHz.stddev()*1e-3); 67342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " adjusted CPU load in MHz (i.e. normalized for CPU clock frequency):\n" 67442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.1f min=%.1f max=%.1f stddev=%.1f\n", 67542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadMHz.mean(), loadMHz.minimum(), loadMHz.maximum(), loadMHz.stddev()); 67697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 6771295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // The active track mask and track states are updated non-atomically. 6781295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // So if we relied on isActive to decide whether to display, 6791295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // then we might display an obsolete track or omit an active track. 6801295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // Instead we always display all tracks, with an indication 6811295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // of whether we think the track is active. 6821295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten uint32_t trackMask = mTrackMask; 6831295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Fast tracks: kMaxFastTracks=%u activeMask=%#x\n", 6841295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten FastMixerState::kMaxFastTracks, trackMask); 6851295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Index Active Full Partial Empty Recent Ready\n"); 6861295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten for (uint32_t i = 0; i < FastMixerState::kMaxFastTracks; ++i, trackMask >>= 1) { 6871295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten bool isActive = trackMask & 1; 6881295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackDump *ftDump = &mTracks[i]; 6891295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackUnderruns& underruns = ftDump->mUnderruns; 6901295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const char *mostRecent; 6911295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten switch (underruns.mBitFields.mMostRecent) { 6921295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_FULL: 6931295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "full"; 6941295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 6951295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_PARTIAL: 6961295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "partial"; 6971295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 6981295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_EMPTY: 6991295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "empty"; 7001295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7011295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten default: 7021295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "?"; 7031295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7041295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 7051295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "%5u %6s %4u %7u %5u %7s %5u\n", i, isActive ? "yes" : "no", 7061295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mFull) & UNDERRUN_MASK, 7071295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mPartial) & UNDERRUN_MASK, 7081295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mEmpty) & UNDERRUN_MASK, 7091295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent, ftDump->mFramesReady); 7101295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 71197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 71297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 71397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} // namespace android 714