FastMixer.cpp revision 9e58b552f51b00b3b674102876bd6c77ef3da806
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 17a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten// <IMPORTANT_WARNING> 18a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten// Design rules for threadLoop() are given in the comments at section "Fast mixer thread" of 19a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten// StateQueue.h. In particular, avoid library and system calls except at well-known points. 20a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten// The design rules are only for threadLoop(), and don't apply to FastMixerDumpState methods. 21a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten// </IMPORTANT_WARNING> 22a3d2628a22f2b3d682495044897a40ea1399a662Glenn Kasten 2397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define LOG_TAG "FastMixer" 2497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten//#define LOG_NDEBUG 0 2597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 26b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray#define ATRACE_TAG ATRACE_TAG_AUDIO 27371eb9756c32109ea572b91216b19bb623f6d3fdAlex Ray 2897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <sys/atomics.h> 2997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <time.h> 3097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <utils/Log.h> 31d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten#include <utils/Trace.h> 3297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <system/audio.h> 3397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 3497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <cpustats/CentralTendencyStatistics.h> 350a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 3642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten#include <cpustats/ThreadCpuUsage.h> 3797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 380a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 3997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "AudioMixer.h" 4097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "FastMixer.h" 4197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_HOT_IDLE_NS 1000000L // 1 ms: time to sleep while hot idling 4397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_DEFAULT_NS 999999999L // ~1 sec: default time to sleep 44eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten#define MIN_WARMUP_CYCLES 2 // minimum number of loop cycles to wait for warmup 45288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten#define MAX_WARMUP_CYCLES 10 // maximum number of loop cycles to wait for warmup 4697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastennamespace android { 4897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten// Fast mixer thread 5097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenbool FastMixer::threadLoop() 5197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 5297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten static const FastMixerState initial; 5397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *previous = &initial, *current = &initial; 5497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState preIdle; // copy of state before we went into idle 5597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec oldTs = {0, 0}; 5697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool oldTsValid = false; 5797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long slopNs = 0; // accumulated time we've woken up too early (> 0) or too late (< 0) 5897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long sleepNs = -1; // -1: busy wait, 0: sched_yield, > 0: nanosleep 5997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTrackNames[FastMixerState::kMaxFastTracks]; // handles used by mixer to identify tracks 6097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int generations[FastMixerState::kMaxFastTracks]; // last observed mFastTracks[i].mGeneration 6197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned i; 6297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 6397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 6497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = 0; 6597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 6697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Sink *outputSink = NULL; 6797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int outputSinkGen = 0; 6897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioMixer* mixer = NULL; 6997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten short *mixBuffer = NULL; 7097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten enum {UNDEFINED, MIXED, ZEROED} mixBufferState = UNDEFINED; 7197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format format = Format_Invalid; 7297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned sampleRate = 0; 7397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTracksGen = 0; 7497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long periodNs = 0; // expected period; the time required to render one mix buffer 75288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long underrunNs = 0; // underrun likely when write cycle is greater than this value 76288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long overrunNs = 0; // overrun likely when write cycle is less than this value 77972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten long forceNs = 0; // if overrun detected, force the write cycle to take this much time 78288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long warmupNs = 0; // warmup complete when write cycle is greater than to this value 7997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerDumpState dummyDumpState, *dumpState = &dummyDumpState; 8097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool ignoreNextOverrun = true; // used to ignore initial overrun and first after an underrun 8197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 8242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec oldLoad = {0, 0}; // previous value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 8342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool oldLoadValid = false; // whether oldLoad is valid 8442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = 0; 8542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool full = false; // whether we have collected at least kSamplingN samples 860a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 8742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ThreadCpuUsage tcu; // for reading the current CPU clock frequency in kHz 8897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 890a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 9097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned coldGen = 0; // last observed mColdGen 91288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool isWarm = false; // true means ready to mix, false means wait for warmup before mixing 92288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten struct timespec measuredWarmupTs = {0, 0}; // how long did it take for warmup to complete 93288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten uint32_t warmupCycles = 0; // counter of number of loop cycles required to warmup 94fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten NBAIO_Sink* teeSink = NULL; // if non-NULL, then duplicate write() to this non-blocking sink 959e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten NBLog::Writer dummyLogWriter, *logWriter = &dummyLogWriter; 9697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 9797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (;;) { 9897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 9997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // either nanosleep, sched_yield, or busy wait 10097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs >= 0) { 10197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs > 0) { 10297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(sleepNs < 1000000000); 10397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const struct timespec req = {0, sleepNs}; 10497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nanosleep(&req, NULL); 10597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 10697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sched_yield(); 10797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 10897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 10997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // default to long sleep for next cycle 11097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_DEFAULT_NS; 11197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 11297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // poll for state change 11397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *next = mSQ.poll(); 11497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next == NULL) { 11597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // continue to use the default initial state until a real state is available 11697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(current == &initial && previous == &initial); 11797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = current; 11897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 11997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 12097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState::Command command = next->mCommand; 12197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next != current) { 12297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 1239e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->log("next != current"); 1249e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten 12597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // As soon as possible of learning of a new dump area, start using it 12697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState = next->mDumpState != NULL ? next->mDumpState : &dummyDumpState; 127fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten teeSink = next->mTeeSink; 1289e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter = next->mNBLogWriter != NULL ? next->mNBLogWriter : &dummyLogWriter; 12997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 13097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // We want to always have a valid reference to the previous (non-idle) state. 13197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // However, the state queue only guarantees access to current and previous states. 13297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // So when there is a transition from a non-idle state into an idle state, we make a 13397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // copy of the last known non-idle state so it is still available on return from idle. 13497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // The possible transitions are: 13597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> non-idle update previous from current in-place 13697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> idle update previous from copy of current 13797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> idle don't update previous 13897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> non-idle don't update previous 13997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (!(current->mCommand & FastMixerState::IDLE)) { 14097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (command & FastMixerState::IDLE) { 14197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten preIdle = *current; 14297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = &preIdle; 14397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 14442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = false; 14597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 14697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 14797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 14897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 14997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = next; 15097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 15197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 15297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = NULL; // not referenced again 15397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 15497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 15597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mCommand = command; 15697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 15797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (command) { 15897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 15997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 16097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 16197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 16297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 16397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only perform a cold idle command once 16421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten // FIXME consider checking previous state and only perform if previous != COLD_IDLE 16597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mColdGen != coldGen) { 16697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t *coldFutexAddr = current->mColdFutexAddr; 16797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(coldFutexAddr != NULL); 16897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t old = android_atomic_dec(coldFutexAddr); 16997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (old <= 0) { 1709e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->log("wait"); 17197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten __futex_syscall4(coldFutexAddr, FUTEX_WAIT_PRIVATE, old - 1, NULL); 17297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 173288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This may be overly conservative; there could be times that the normal mixer 174288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // requests such a brief cold idle that it doesn't require resetting this flag. 175288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = false; 176288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec = 0; 177288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec = 0; 178288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupCycles = 0; 17997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = -1; 18097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten coldGen = current->mColdGen; 18142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds = 0; 18242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = false; 18304a4ca4217e9b30342d5865024c340013d7184e8Glenn Kasten oldTsValid = !clock_gettime(CLOCK_MONOTONIC, &oldTs); 18497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 18597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 18697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 18797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 18897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 1899e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->log("exit"); 19097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 19197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 19297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten return false; 19397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 19497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 19597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 19697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 19797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 19897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten LOG_FATAL("bad command %d", command); 19997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 20097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 20197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // there is a non-idle state available to us; did the state change? 20297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten size_t frameCount = current->mFrameCount; 20397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current != previous) { 20497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 20597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // handle state change here, but since we want to diff the state, 20697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we're prepared for previous == &initial the first time through 20797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned previousTrackMask; 20897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 20997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in output HAL configuration 21097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format previousFormat = format; 21197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mOutputSinkGen != outputSinkGen) { 21297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSink = current->mOutputSink; 21397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSinkGen = current->mOutputSinkGen; 21497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (outputSink == NULL) { 21597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = Format_Invalid; 21697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = 0; 21797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 21897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = outputSink->format(); 21997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = Format_sampleRate(format); 22097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(Format_channelCount(format) == 2); 22197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 22221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mSampleRate = sampleRate; 22397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 22497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 22597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((format != previousFormat) || (frameCount != previous->mFrameCount)) { 22697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME to avoid priority inversion, don't delete here 22797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 22897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = NULL; 22997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 23097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = NULL; 23197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (frameCount > 0 && sampleRate > 0) { 23297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME new may block for unbounded time at internal mutex of the heap 23397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // implementation; it would be better to have normal mixer allocate for us 23497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // to avoid blocking here and to prevent possible priority inversion 23597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = new AudioMixer(frameCount, sampleRate, FastMixerState::kMaxFastTracks); 23697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = new short[frameCount * 2]; 23797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = (frameCount * 1000000000LL) / sampleRate; // 1.00 23897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = (frameCount * 1750000000LL) / sampleRate; // 1.75 2390d27c65ddb5c968baa6db0c26e80f5c451bc52bcGlenn Kasten overrunNs = (frameCount * 500000000LL) / sampleRate; // 0.50 2400d27c65ddb5c968baa6db0c26e80f5c451bc52bcGlenn Kasten forceNs = (frameCount * 950000000LL) / sampleRate; // 0.95 241288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupNs = (frameCount * 500000000LL) / sampleRate; // 0.50 24297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 24397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = 0; 24497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = 0; 24597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten overrunNs = 0; 246972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten forceNs = 0; 247972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten warmupNs = 0; 24897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 24997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 25097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 25197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 25297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 25397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 25497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 25597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we need to reconfigure all active tracks 25697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = 0; 25797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen - 1; 25821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mFrameCount = frameCount; 25997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 26097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = previous->mTrackMask; 26197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 26297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 26397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in active track set 26497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 2651295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten dumpState->mTrackMask = currentTrackMask; 26697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mFastTracksGen != fastTracksGen) { 2679e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->logf("gen %d", current->mFastTracksGen); 26897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 26997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name; 27097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 27197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process removed tracks first to avoid running out of track names 27297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned removedTracks = previousTrackMask & ~currentTrackMask; 2739e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten if (removedTracks) { 2749e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->logf("removed %#x", removedTracks); 2759e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten } 27697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (removedTracks != 0) { 27797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(removedTracks); 27897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten removedTracks &= ~(1 << i); 27997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 280288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(fastTrack->mBufferProvider == NULL); 28197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 28297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 28397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 28497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->deleteTrackName(name); 28597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 28697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 28797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 28897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 289288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // don't reset track dump state, since other side is ignoring it 29097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 29197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 29297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 29397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // now process added tracks 29497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned addedTracks = currentTrackMask & ~previousTrackMask; 2959e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten if (addedTracks) { 2969e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->logf("added %#x", addedTracks); 2979e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten } 29897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (addedTracks != 0) { 29997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(addedTracks); 30097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten addedTracks &= ~(1 << i); 30197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 30297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 30397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL && fastTrackNames[i] == -1); 30497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 305fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi // calling getTrackName with default channel mask and a random invalid 306fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi // sessionId (no effects here) 307fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi name = mixer->getTrackName(AUDIO_CHANNEL_OUT_STEREO, -555); 30897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 30997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = name; 31097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 31197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER, 31297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *) mixBuffer); 31397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // newly allocated track names default to full scale volume 31421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && fastTrack->mSampleRate != sampleRate) { 31521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 31621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 31721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 31821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 31921e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 32097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->enable(name); 32197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 32297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 32397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 32497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 32597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // finally process modified tracks; these use the same slot 32697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but may have a different buffer provider or volume provider 32797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned modifiedTracks = currentTrackMask & previousTrackMask; 3289e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten if (modifiedTracks) { 3299e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->logf("modified %#x", modifiedTracks); 3309e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten } 33197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (modifiedTracks != 0) { 33297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(modifiedTracks); 33397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten modifiedTracks &= ~(1 << i); 33497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 33597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mGeneration != generations[i]) { 33697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 33797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL); 33897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 33997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 34097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 34197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 34297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider == NULL) { 34397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 34497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 34597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 34697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 34797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 34821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && 34921e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten fastTrack->mSampleRate != sampleRate) { 35021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 35121e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 35221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } else { 35321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 35421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::REMOVE, NULL); 35521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 35621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 35721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 35897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // already enabled 35997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 36097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 36197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 36297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 36397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 36497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen; 36597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 36697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mNumTracks = popcount(currentTrackMask); 36797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 36897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 36997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if 1 // FIXME shouldn't need this 37097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only process state change once 37197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 37297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 37397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 37497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 37597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // do work using current state here 376288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if ((command & FastMixerState::MIX) && (mixer != NULL) && isWarm) { 37797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 378288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // for each track, update volume and check for underrun 379288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 380288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten while (currentTrackMask != 0) { 381288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten i = __builtin_ctz(currentTrackMask); 382288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten currentTrackMask &= ~(1 << i); 38397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 38497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name = fastTrackNames[i]; 38597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 38697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider != NULL) { 38797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten uint32_t vlr = fastTrack->mVolumeProvider->getVolumeLR(); 38897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 38997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr & 0xFFFF)); 39097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 39197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr >> 16)); 39297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 393288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // FIXME The current implementation of framesReady() for fast tracks 394288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // takes a tryLock, which can block 395288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // up to 1 ms. If enough active tracks all blocked in sequence, this would result 396288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // in the overall fast mix cycle being delayed. Should use a non-blocking FIFO. 397288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten size_t framesReady = fastTrack->mBufferProvider->framesReady(); 398b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray if (ATRACE_ENABLED()) { 399b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray // I wish we had formatted trace names 400b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray char traceName[16]; 401b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray strcpy(traceName, "framesReady"); 402b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray traceName[11] = i + (i < 10 ? '0' : 'A' - 10); 403b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray traceName[12] = '\0'; 404b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray ATRACE_INT(traceName, framesReady); 405b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray } 406288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten FastTrackDump *ftDump = &dumpState->mTracks[i]; 40709474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten FastTrackUnderruns underruns = ftDump->mUnderruns; 408288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady < frameCount) { 409288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady == 0) { 41009474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mEmpty++; 41109474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_EMPTY; 412288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->disable(name); 413288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } else { 414288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // allow mixing partial buffer 41509474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mPartial++; 41609474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_PARTIAL; 417288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 418288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 41909474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten } else { 42009474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mFull++; 42109474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_FULL; 422288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 423288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 42409474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten ftDump->mUnderruns = underruns; 4251295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten ftDump->mFramesReady = framesReady; 42697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 4272c3b2da3049627264b7c6b449a1622f002210f03John Grossman 4282c3b2da3049627264b7c6b449a1622f002210f03John Grossman int64_t pts; 4292c3b2da3049627264b7c6b449a1622f002210f03John Grossman if (outputSink == NULL || (OK != outputSink->getNextWriteTimestamp(&pts))) 4302c3b2da3049627264b7c6b449a1622f002210f03John Grossman pts = AudioBufferProvider::kInvalidPTS; 4312c3b2da3049627264b7c6b449a1622f002210f03John Grossman 43297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process() is CPU-bound 4332c3b2da3049627264b7c6b449a1622f002210f03John Grossman mixer->process(pts); 43497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = MIXED; 43597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (mixBufferState == MIXED) { 43697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 43797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 438288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool attemptedWrite = false; 439288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //bool didFullWrite = false; // dumpsys could display a count of partial writes 44097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((command & FastMixerState::WRITE) && (outputSink != NULL) && (mixBuffer != NULL)) { 44197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixBufferState == UNDEFINED) { 44297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten memset(mixBuffer, 0, frameCount * 2 * sizeof(short)); 44397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = ZEROED; 44497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 445fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten if (teeSink != NULL) { 446fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten (void) teeSink->write(mixBuffer, frameCount); 447fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten } 44897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME write() is non-blocking and lock-free for a properly implemented NBAIO sink, 44997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but this code should be modified to handle both non-blocking and blocking sinks 45097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 4512d590964aa58e137d17a43e095e6443dd0fe2e98Simon Wilson ATRACE_BEGIN("write"); 45297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ssize_t framesWritten = outputSink->write(mixBuffer, frameCount); 4532d590964aa58e137d17a43e095e6443dd0fe2e98Simon Wilson ATRACE_END(); 45497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 45597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (framesWritten >= 0) { 456288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(framesWritten <= frameCount); 45797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mFramesWritten += framesWritten; 458288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //if ((size_t) framesWritten == frameCount) { 459288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // didFullWrite = true; 460288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //} 46197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 46297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteErrors++; 46397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 464288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten attemptedWrite = true; 46597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME count # of writes blocked excessively, CPU usage, etc. for dump 46697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 46797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 46897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // To be exactly periodic, compute the next sleep time based on current time. 46997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // This code doesn't have long-term stability when the sink is non-blocking. 47097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME To avoid drift, use the local audio clock or watch the sink's fill status. 47197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec newTs; 47297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int rc = clock_gettime(CLOCK_MONOTONIC, &newTs); 47397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (rc == 0) { 4749e58b552f51b00b3b674102876bd6c77ef3da806Glenn Kasten logWriter->logTimestamp(newTs); 47597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (oldTsValid) { 47697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten time_t sec = newTs.tv_sec - oldTs.tv_sec; 47797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long nsec = newTs.tv_nsec - oldTs.tv_nsec; 47880b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten ALOGE_IF(sec < 0 || (sec == 0 && nsec < 0), 47980b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten "clock_gettime(CLOCK_MONOTONIC) failed: was %ld.%09ld but now %ld.%09ld", 48080b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten oldTs.tv_sec, oldTs.tv_nsec, newTs.tv_sec, newTs.tv_nsec); 48197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (nsec < 0) { 48297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten --sec; 48397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nsec += 1000000000; 48497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 485288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // To avoid an initial underrun on fast tracks after exiting standby, 486288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // do not start pulling data from tracks and mixing until warmup is complete. 487288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // Warmup is considered complete after the earlier of: 488eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten // MIN_WARMUP_CYCLES write() attempts and last one blocks for at least warmupNs 489288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // MAX_WARMUP_CYCLES write() attempts. 490288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This is overly conservative, but to get better accuracy requires a new HAL API. 491288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (!isWarm && attemptedWrite) { 492288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec += sec; 493288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec += nsec; 494288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (measuredWarmupTs.tv_nsec >= 1000000000) { 495288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec++; 496288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec -= 1000000000; 497288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 498288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ++warmupCycles; 499eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten if ((nsec > warmupNs && warmupCycles >= MIN_WARMUP_CYCLES) || 500288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (warmupCycles >= MAX_WARMUP_CYCLES)) { 501288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = true; 502288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mMeasuredWarmupTs = measuredWarmupTs; 503288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mWarmupCycles = warmupCycles; 504288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 505288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 506972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten sleepNs = -1; 507972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten if (isWarm) { 50897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sec > 0 || nsec > underrunNs) { 509b3a8364eeea621ef63b983e4c1b0771f62069fe0Alex Ray ATRACE_NAME("underrun"); 51097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 51197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("underrun: time since last cycle %d.%03ld sec", 51297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 51397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mUnderruns++; 51497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 51597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (nsec < overrunNs) { 51697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (ignoreNextOverrun) { 51797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 51897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 51997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 52097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("overrun: time since last cycle %d.%03ld sec", 52197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 52297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mOverruns++; 52397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 524972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // This forces a minimum cycle time. It: 525972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - compensates for an audio HAL with jitter due to sample rate conversion 526972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - works with a variable buffer depth audio HAL that never pulls at a rate 527972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // < than overrunNs per buffer. 528972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - recovers from overrun immediately after underrun 529972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // It doesn't work with a non-blocking audio HAL. 530972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten sleepNs = forceNs - nsec; 53197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 53297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 53397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 534972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten } 53597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 536eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten if (isWarm) { 53742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // advance the FIFO queue bounds 53842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = bounds & (FastMixerDumpState::kSamplingN - 1); 539e58ccce45598bcf4b4874b0e87cd1eb8d05ba9a9Glenn Kasten bounds = (bounds & 0xFFFF0000) | ((bounds + 1) & 0xFFFF); 54042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (full) { 54142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds += 0x10000; 54242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else if (!(bounds & (FastMixerDumpState::kSamplingN - 1))) { 54342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = true; 54497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 54542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the delta value of clock_gettime(CLOCK_MONOTONIC) 54642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t monotonicNs = nsec; 54742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 54842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten monotonicNs += sec * 1000000000; 54942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 55042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the raw CPU load = delta value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 55142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t loadNs = 0; 55242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec newLoad; 55342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &newLoad); 55442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (rc == 0) { 55542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (oldLoadValid) { 55642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten sec = newLoad.tv_sec - oldLoad.tv_sec; 55742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec = newLoad.tv_nsec - oldLoad.tv_nsec; 55842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (nsec < 0) { 55942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten --sec; 56042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec += 1000000000; 56142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 56242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs = nsec; 56342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 56442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs += sec * 1000000000; 56542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 56642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else { 56742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // first time through the loop 56842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = true; 56942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 57042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoad = newLoad; 57142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 5720a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 57342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // get the absolute value of CPU clock frequency in kHz 57442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten int cpuNum = sched_getcpu(); 57542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t kHz = tcu.getCpukHz(cpuNum); 576c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz = (kHz << 4) | (cpuNum & 0xF); 5770a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 57842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // save values in FIFO queues for dumpsys 57942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // these stores #1, #2, #3 are not atomic with respect to each other, 58042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // or with respect to store #4 below 58142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mMonotonicNs[i] = monotonicNs; 58242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mLoadNs[i] = loadNs; 5830a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 58442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mCpukHz[i] = kHz; 5850a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 58642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // this store #4 is not atomic with respect to stores #1, #2, #3 above, but 58742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // the newest open and oldest closed halves are atomic with respect to each other 58842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mBounds = bounds; 58999c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("cycle_ms", monotonicNs / 1000000); 59099c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("load_us", loadNs / 1000); 591eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten } 59297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 59397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 59497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // first time through the loop 59597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = true; 59697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 59797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 59897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 59997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTs = newTs; 60097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 60197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // monotonic clock is broken 60297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 60397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 60497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 60597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 60642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten 60797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } // for (;;) 60897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 60997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // never return 'true'; Thread::_threadLoop() locks mutex which can result in priority inversion 61097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 61197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 61297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::FastMixerDumpState() : 61397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mCommand(FastMixerState::INITIAL), mWriteSequence(0), mFramesWritten(0), 61421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks(0), mWriteErrors(0), mUnderruns(0), mOverruns(0), 6151295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mSampleRate(0), mFrameCount(0), /* mMeasuredWarmupTs({0, 0}), */ mWarmupCycles(0), 6161295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mTrackMask(0) 61797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 61842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten , mBounds(0) 61997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 62097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 621288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_sec = 0; 622288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_nsec = 0; 62342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // sample arrays aren't accessed atomically with respect to the bounds, 62442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // so clearing reduces chance for dumpsys to read random uninitialized samples 62542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mMonotonicNs, 0, sizeof(mMonotonicNs)); 62642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mLoadNs, 0, sizeof(mLoadNs)); 6270a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 62842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mCpukHz, 0, sizeof(mCpukHz)); 6290a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 63097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 63197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 63297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::~FastMixerDumpState() 63397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 63497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 63597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 6361ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten// helper function called by qsort() 6371ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kastenstatic int compare_uint32_t(const void *pa, const void *pb) 6381ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten{ 6391ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t a = *(const uint32_t *)pa; 6401ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t b = *(const uint32_t *)pb; 6411ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (a < b) { 6421ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return -1; 6431ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } else if (a > b) { 6441ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return 1; 6451ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } else { 6461ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return 0; 6471ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 6481ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten} 6491ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten 65097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenvoid FastMixerDumpState::dump(int fd) 65197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 652868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten if (mCommand == FastMixerState::INITIAL) { 653868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten fdprintf(fd, "FastMixer not initialized\n"); 654868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten return; 655868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten } 65697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define COMMAND_MAX 32 65797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten char string[COMMAND_MAX]; 65897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (mCommand) { 65997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 66097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "INITIAL"); 66197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 66397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "HOT_IDLE"); 66497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 66697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "COLD_IDLE"); 66797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 66997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "EXIT"); 67097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 67197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 67297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX"); 67397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 67497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 67597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "WRITE"); 67697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 67797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 67897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX_WRITE"); 67997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 68097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 68197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten snprintf(string, COMMAND_MAX, "%d", mCommand); 68297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 68397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 68442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double measuredWarmupMs = (mMeasuredWarmupTs.tv_sec * 1000.0) + 685288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (mMeasuredWarmupTs.tv_nsec / 1000000.0); 68642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double mixPeriodSec = (double) mFrameCount / (double) mSampleRate; 68797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fdprintf(fd, "FastMixer command=%s writeSequence=%u framesWritten=%u\n" 68821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten " numTracks=%u writeErrors=%u underruns=%u overruns=%u\n" 68942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " sampleRate=%u frameCount=%u measuredWarmup=%.3g ms, warmupCycles=%u\n" 69042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mixPeriod=%.2f ms\n", 69197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten string, mWriteSequence, mFramesWritten, 69221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks, mWriteErrors, mUnderruns, mOverruns, 69342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mSampleRate, mFrameCount, measuredWarmupMs, mWarmupCycles, 69442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mixPeriodSec * 1e3); 69597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 69642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // find the interval of valid samples 69742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = mBounds; 69842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t newestOpen = bounds & 0xFFFF; 69942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t oldestClosed = bounds >> 16; 70042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t n = (newestOpen - oldestClosed) & 0xFFFF; 70142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (n > kSamplingN) { 70242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ALOGE("too many samples %u", n); 70342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten n = kSamplingN; 70442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 70542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency, 70642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // and adjusted CPU load in MHz normalized for CPU clock frequency 7070a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten CentralTendencyStatistics wall, loadNs; 7080a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 7090a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten CentralTendencyStatistics kHz, loadMHz; 71042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t previousCpukHz = 0; 7110a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 7121ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // Assuming a normal distribution for cycle times, three standard deviations on either side of 7131ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // the mean account for 99.73% of the population. So if we take each tail to be 1/1000 of the 7141ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // sample set, we get 99.8% combined, or close to three standard deviations. 7151ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten static const uint32_t kTailDenominator = 1000; 7161ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t *tail = n >= kTailDenominator ? new uint32_t[n] : NULL; 71742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // loop over all the samples 7181ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten for (uint32_t j = 0; j < n; ++j) { 71942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = oldestClosed++ & (kSamplingN - 1); 72042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t wallNs = mMonotonicNs[i]; 7211ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (tail != NULL) { 7221ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten tail[j] = wallNs; 7231ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 72442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.sample(wallNs); 72542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t sampleLoadNs = mLoadNs[i]; 72642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.sample(sampleLoadNs); 7270a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 7280a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten uint32_t sampleCpukHz = mCpukHz[i]; 729c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten // skip bad kHz samples 730c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if ((sampleCpukHz & ~0xF) != 0) { 731c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz.sample(sampleCpukHz >> 4); 732c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if (sampleCpukHz == previousCpukHz) { 733c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double megacycles = (double) sampleLoadNs * (double) (sampleCpukHz >> 4) * 1e-12; 734c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double adjMHz = megacycles / mixPeriodSec; // _not_ wallNs * 1e9 735c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten loadMHz.sample(adjMHz); 736c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten } 73742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 73842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten previousCpukHz = sampleCpukHz; 7390a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 74042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 74142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, "Simple moving statistics over last %.1f seconds:\n", wall.n() * mixPeriodSec); 74242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " wall clock time in ms per mix cycle:\n" 74342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", 74442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.mean()*1e-6, wall.minimum()*1e-6, wall.maximum()*1e-6, wall.stddev()*1e-6); 74542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " raw CPU load in us per mix cycle:\n" 74642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 74742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.mean()*1e-3, loadNs.minimum()*1e-3, loadNs.maximum()*1e-3, 74842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.stddev()*1e-3); 7490a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 75042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " CPU clock frequency in MHz:\n" 75142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 75242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten kHz.mean()*1e-3, kHz.minimum()*1e-3, kHz.maximum()*1e-3, kHz.stddev()*1e-3); 75342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " adjusted CPU load in MHz (i.e. normalized for CPU clock frequency):\n" 75442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.1f min=%.1f max=%.1f stddev=%.1f\n", 75542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadMHz.mean(), loadMHz.minimum(), loadMHz.maximum(), loadMHz.stddev()); 75697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 7571ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (tail != NULL) { 7581ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten qsort(tail, n, sizeof(uint32_t), compare_uint32_t); 7591ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // assume same number of tail samples on each side, left and right 7601ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t count = n / kTailDenominator; 7611ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten CentralTendencyStatistics left, right; 7621ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten for (uint32_t i = 0; i < count; ++i) { 7631ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten left.sample(tail[i]); 7641ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.sample(tail[n - (i + 1)]); 7651ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 7661ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten fdprintf(fd, "Distribution of mix cycle times in ms for the tails (> ~3 stddev outliers):\n" 7671ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten " left tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n" 7681ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten " right tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", 7691ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten left.mean()*1e-6, left.minimum()*1e-6, left.maximum()*1e-6, left.stddev()*1e-6, 7701ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.mean()*1e-6, right.minimum()*1e-6, right.maximum()*1e-6, 7711ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.stddev()*1e-6); 7721ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten delete[] tail; 7731ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 7740a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 7751295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // The active track mask and track states are updated non-atomically. 7761295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // So if we relied on isActive to decide whether to display, 7771295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // then we might display an obsolete track or omit an active track. 7781295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // Instead we always display all tracks, with an indication 7791295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // of whether we think the track is active. 7801295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten uint32_t trackMask = mTrackMask; 7811295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Fast tracks: kMaxFastTracks=%u activeMask=%#x\n", 7821295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten FastMixerState::kMaxFastTracks, trackMask); 7831295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Index Active Full Partial Empty Recent Ready\n"); 7841295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten for (uint32_t i = 0; i < FastMixerState::kMaxFastTracks; ++i, trackMask >>= 1) { 7851295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten bool isActive = trackMask & 1; 7861295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackDump *ftDump = &mTracks[i]; 7871295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackUnderruns& underruns = ftDump->mUnderruns; 7881295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const char *mostRecent; 7891295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten switch (underruns.mBitFields.mMostRecent) { 7901295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_FULL: 7911295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "full"; 7921295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7931295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_PARTIAL: 7941295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "partial"; 7951295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7961295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_EMPTY: 7971295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "empty"; 7981295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7991295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten default: 8001295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "?"; 8011295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 8021295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 8031295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "%5u %6s %4u %7u %5u %7s %5u\n", i, isActive ? "yes" : "no", 8041295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mFull) & UNDERRUN_MASK, 8051295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mPartial) & UNDERRUN_MASK, 8061295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mEmpty) & UNDERRUN_MASK, 8071295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent, ftDump->mFramesReady); 8081295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 80997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 81097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 81197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} // namespace android 812