FastMixer.cpp revision a3d2628a22f2b3d682495044897a40ea1399a662
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 2697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <sys/atomics.h> 2797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <time.h> 2897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <utils/Log.h> 29d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten#include <utils/Trace.h> 3097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <system/audio.h> 3197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 3297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include <cpustats/CentralTendencyStatistics.h> 330a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 3442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten#include <cpustats/ThreadCpuUsage.h> 3597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 360a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 3797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "AudioMixer.h" 3897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#include "FastMixer.h" 3997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_HOT_IDLE_NS 1000000L // 1 ms: time to sleep while hot idling 4197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define FAST_DEFAULT_NS 999999999L // ~1 sec: default time to sleep 42eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten#define MIN_WARMUP_CYCLES 2 // minimum number of loop cycles to wait for warmup 43288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten#define MAX_WARMUP_CYCLES 10 // maximum number of loop cycles to wait for warmup 4497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastennamespace android { 4697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 4797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten// Fast mixer thread 4897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenbool FastMixer::threadLoop() 4997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 5097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten static const FastMixerState initial; 5197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *previous = &initial, *current = &initial; 5297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState preIdle; // copy of state before we went into idle 5397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec oldTs = {0, 0}; 5497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool oldTsValid = false; 5597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long slopNs = 0; // accumulated time we've woken up too early (> 0) or too late (< 0) 5697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long sleepNs = -1; // -1: busy wait, 0: sched_yield, > 0: nanosleep 5797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTrackNames[FastMixerState::kMaxFastTracks]; // handles used by mixer to identify tracks 5897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int generations[FastMixerState::kMaxFastTracks]; // last observed mFastTracks[i].mGeneration 5997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned i; 6097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 6197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 6297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = 0; 6397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 6497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Sink *outputSink = NULL; 6597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int outputSinkGen = 0; 6697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioMixer* mixer = NULL; 6797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten short *mixBuffer = NULL; 6897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten enum {UNDEFINED, MIXED, ZEROED} mixBufferState = UNDEFINED; 6997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format format = Format_Invalid; 7097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned sampleRate = 0; 7197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int fastTracksGen = 0; 7297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long periodNs = 0; // expected period; the time required to render one mix buffer 73288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long underrunNs = 0; // underrun likely when write cycle is greater than this value 74288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long overrunNs = 0; // overrun likely when write cycle is less than this value 75972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten long forceNs = 0; // if overrun detected, force the write cycle to take this much time 76288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten long warmupNs = 0; // warmup complete when write cycle is greater than to this value 7797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerDumpState dummyDumpState, *dumpState = &dummyDumpState; 7897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten bool ignoreNextOverrun = true; // used to ignore initial overrun and first after an underrun 7997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 8042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec oldLoad = {0, 0}; // previous value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 8142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool oldLoadValid = false; // whether oldLoad is valid 8242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = 0; 8342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bool full = false; // whether we have collected at least kSamplingN samples 840a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 8542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ThreadCpuUsage tcu; // for reading the current CPU clock frequency in kHz 8697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 870a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 8897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned coldGen = 0; // last observed mColdGen 89288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool isWarm = false; // true means ready to mix, false means wait for warmup before mixing 90288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten struct timespec measuredWarmupTs = {0, 0}; // how long did it take for warmup to complete 91288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten uint32_t warmupCycles = 0; // counter of number of loop cycles required to warmup 92fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten NBAIO_Sink* teeSink = NULL; // if non-NULL, then duplicate write() to this non-blocking sink 9397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 9497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (;;) { 9597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 9697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // either nanosleep, sched_yield, or busy wait 9797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs >= 0) { 9897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sleepNs > 0) { 9997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(sleepNs < 1000000000); 10097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const struct timespec req = {0, sleepNs}; 10197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nanosleep(&req, NULL); 10297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 10397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sched_yield(); 10497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 10597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 10697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // default to long sleep for next cycle 10797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_DEFAULT_NS; 10897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 10997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // poll for state change 11097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastMixerState *next = mSQ.poll(); 11197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next == NULL) { 11297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // continue to use the default initial state until a real state is available 11397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(current == &initial && previous == &initial); 11497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = current; 11597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 11697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 11797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten FastMixerState::Command command = next->mCommand; 11897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (next != current) { 11997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 12097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // As soon as possible of learning of a new dump area, start using it 12197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState = next->mDumpState != NULL ? next->mDumpState : &dummyDumpState; 122fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten teeSink = next->mTeeSink; 12397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 12497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // We want to always have a valid reference to the previous (non-idle) state. 12597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // However, the state queue only guarantees access to current and previous states. 12697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // So when there is a transition from a non-idle state into an idle state, we make a 12797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // copy of the last known non-idle state so it is still available on return from idle. 12897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // The possible transitions are: 12997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> non-idle update previous from current in-place 13097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // non-idle -> idle update previous from copy of current 13197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> idle don't update previous 13297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // idle -> non-idle don't update previous 13397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (!(current->mCommand & FastMixerState::IDLE)) { 13497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (command & FastMixerState::IDLE) { 13597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten preIdle = *current; 13697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = &preIdle; 13797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 13842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = false; 13997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 14097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 14197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 14297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 14397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten current = next; 14497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 14597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 14697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten next = NULL; // not referenced again 14797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 14897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 14997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mCommand = command; 15097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 15197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (command) { 15297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 15397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 15497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 15597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 15697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 15797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only perform a cold idle command once 15821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten // FIXME consider checking previous state and only perform if previous != COLD_IDLE 15997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mColdGen != coldGen) { 16097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t *coldFutexAddr = current->mColdFutexAddr; 16197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(coldFutexAddr != NULL); 16297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int32_t old = android_atomic_dec(coldFutexAddr); 16397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (old <= 0) { 16497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten __futex_syscall4(coldFutexAddr, FUTEX_WAIT_PRIVATE, old - 1, NULL); 16597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 166288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This may be overly conservative; there could be times that the normal mixer 167288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // requests such a brief cold idle that it doesn't require resetting this flag. 168288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = false; 169288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec = 0; 170288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec = 0; 171288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupCycles = 0; 17297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = -1; 17397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten coldGen = current->mColdGen; 17442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds = 0; 17542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = false; 17604a4ca4217e9b30342d5865024c340013d7184e8Glenn Kasten oldTsValid = !clock_gettime(CLOCK_MONOTONIC, &oldTs); 17797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 17897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = FAST_HOT_IDLE_NS; 17997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 18097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten continue; 18197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 18297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 18397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 18497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten return false; 18597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 18697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 18797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 18897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 18997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 19097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten LOG_FATAL("bad command %d", command); 19197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 19297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 19397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // there is a non-idle state available to us; did the state change? 19497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten size_t frameCount = current->mFrameCount; 19597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current != previous) { 19697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 19797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // handle state change here, but since we want to diff the state, 19897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we're prepared for previous == &initial the first time through 19997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned previousTrackMask; 20097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 20197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in output HAL configuration 20297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten NBAIO_Format previousFormat = format; 20397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mOutputSinkGen != outputSinkGen) { 20497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSink = current->mOutputSink; 20597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten outputSinkGen = current->mOutputSinkGen; 20697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (outputSink == NULL) { 20797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = Format_Invalid; 20897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = 0; 20997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 21097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten format = outputSink->format(); 21197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sampleRate = Format_sampleRate(format); 21297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(Format_channelCount(format) == 2); 21397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 21421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mSampleRate = sampleRate; 21597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 21697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 21797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((format != previousFormat) || (frameCount != previous->mFrameCount)) { 21897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME to avoid priority inversion, don't delete here 21997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete mixer; 22097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = NULL; 22197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten delete[] mixBuffer; 22297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = NULL; 22397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (frameCount > 0 && sampleRate > 0) { 22497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME new may block for unbounded time at internal mutex of the heap 22597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // implementation; it would be better to have normal mixer allocate for us 22697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // to avoid blocking here and to prevent possible priority inversion 22797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer = new AudioMixer(frameCount, sampleRate, FastMixerState::kMaxFastTracks); 22897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBuffer = new short[frameCount * 2]; 22997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = (frameCount * 1000000000LL) / sampleRate; // 1.00 23097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = (frameCount * 1750000000LL) / sampleRate; // 1.75 2310d27c65ddb5c968baa6db0c26e80f5c451bc52bcGlenn Kasten overrunNs = (frameCount * 500000000LL) / sampleRate; // 0.50 2320d27c65ddb5c968baa6db0c26e80f5c451bc52bcGlenn Kasten forceNs = (frameCount * 950000000LL) / sampleRate; // 0.95 233288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten warmupNs = (frameCount * 500000000LL) / sampleRate; // 0.50 23497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 23597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten periodNs = 0; 23697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten underrunNs = 0; 23797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten overrunNs = 0; 238972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten forceNs = 0; 239972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten warmupNs = 0; 24097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 24197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 24297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 24397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten for (i = 0; i < FastMixerState::kMaxFastTracks; ++i) { 24497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 24597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 24697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 24797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // we need to reconfigure all active tracks 24897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = 0; 24997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen - 1; 25021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten dumpState->mFrameCount = frameCount; 25197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 25297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previousTrackMask = previous->mTrackMask; 25397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 25497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 25597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // check for change in active track set 25697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 2571295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten dumpState->mTrackMask = currentTrackMask; 25897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (current->mFastTracksGen != fastTracksGen) { 25997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 26097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name; 26197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 26297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process removed tracks first to avoid running out of track names 26397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned removedTracks = previousTrackMask & ~currentTrackMask; 26497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (removedTracks != 0) { 26597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(removedTracks); 26697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten removedTracks &= ~(1 << i); 26797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 268288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(fastTrack->mBufferProvider == NULL); 26997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 27097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 27197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 27297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->deleteTrackName(name); 27397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 27497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if !LOG_NDEBUG 27597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = -1; 27697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 277288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // don't reset track dump state, since other side is ignoring it 27897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 27997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 28097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 28197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // now process added tracks 28297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned addedTracks = currentTrackMask & ~previousTrackMask; 28397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (addedTracks != 0) { 28497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(addedTracks); 28597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten addedTracks &= ~(1 << i); 28697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 28797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 28897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL && fastTrackNames[i] == -1); 28997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 290fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi // calling getTrackName with default channel mask and a random invalid 291fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi // sessionId (no effects here) 292fe3156ec6fd9fa57dde913fd8567530d095a6550Jean-Michel Trivi name = mixer->getTrackName(AUDIO_CHANNEL_OUT_STEREO, -555); 29397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 29497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTrackNames[i] = name; 29597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 29697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER, 29797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *) mixBuffer); 29897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // newly allocated track names default to full scale volume 29921e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && fastTrack->mSampleRate != sampleRate) { 30021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 30121e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 30221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 30321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 30421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 30597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->enable(name); 30697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 30797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 30897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 30997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 31097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // finally process modified tracks; these use the same slot 31197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but may have a different buffer provider or volume provider 31297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten unsigned modifiedTracks = currentTrackMask & previousTrackMask; 31397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten while (modifiedTracks != 0) { 31497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten i = __builtin_ctz(modifiedTracks); 31597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten modifiedTracks &= ~(1 << i); 31697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 31797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mGeneration != generations[i]) { 31897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten AudioBufferProvider *bufferProvider = fastTrack->mBufferProvider; 31997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(bufferProvider != NULL); 32097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixer != NULL) { 32197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten name = fastTrackNames[i]; 32297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 32397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setBufferProvider(name, bufferProvider); 32497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider == NULL) { 32597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 32697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 32797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 32897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)0x1000); 32997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 33021e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten if (fastTrack->mSampleRate != 0 && 33121e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten fastTrack->mSampleRate != sampleRate) { 33221e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 33321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate); 33421e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } else { 33521e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::RESAMPLE, 33621e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten AudioMixer::REMOVE, NULL); 33721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten } 33821e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK, 33921e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten (void *) fastTrack->mChannelMask); 34097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // already enabled 34197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 34297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten generations[i] = fastTrack->mGeneration; 34397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 34497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 34597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 34697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fastTracksGen = current->mFastTracksGen; 34797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 34897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mNumTracks = popcount(currentTrackMask); 34997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 35097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 35197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#if 1 // FIXME shouldn't need this 35297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // only process state change once 35397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten previous = current; 35497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 35597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 35697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 35797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // do work using current state here 358288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if ((command & FastMixerState::MIX) && (mixer != NULL) && isWarm) { 35997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(mixBuffer != NULL); 360288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // for each track, update volume and check for underrun 361288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten unsigned currentTrackMask = current->mTrackMask; 362288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten while (currentTrackMask != 0) { 363288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten i = __builtin_ctz(currentTrackMask); 364288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten currentTrackMask &= ~(1 << i); 36597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten const FastTrack* fastTrack = ¤t->mFastTracks[i]; 36697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int name = fastTrackNames[i]; 36797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOG_ASSERT(name >= 0); 36897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (fastTrack->mVolumeProvider != NULL) { 36997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten uint32_t vlr = fastTrack->mVolumeProvider->getVolumeLR(); 37097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, 37197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr & 0xFFFF)); 37297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, 37397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (void *)(vlr >> 16)); 37497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 375288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // FIXME The current implementation of framesReady() for fast tracks 376288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // takes a tryLock, which can block 377288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // up to 1 ms. If enough active tracks all blocked in sequence, this would result 378288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // in the overall fast mix cycle being delayed. Should use a non-blocking FIFO. 379288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten size_t framesReady = fastTrack->mBufferProvider->framesReady(); 38099c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 38199c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten // I wish we had formatted trace names 38299c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten char traceName[16]; 38399c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten strcpy(traceName, "framesReady"); 38499c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten traceName[11] = i + (i < 10 ? '0' : 'A' - 10); 38599c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten traceName[12] = '\0'; 38699c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT(traceName, framesReady); 38799c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 388288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten FastTrackDump *ftDump = &dumpState->mTracks[i]; 38909474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten FastTrackUnderruns underruns = ftDump->mUnderruns; 390288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady < frameCount) { 391288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (framesReady == 0) { 39209474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mEmpty++; 39309474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_EMPTY; 394288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->disable(name); 395288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } else { 396288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // allow mixing partial buffer 39709474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mPartial++; 39809474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_PARTIAL; 399288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 400288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 40109474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten } else { 40209474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mFull++; 40309474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten underruns.mBitFields.mMostRecent = UNDERRUN_FULL; 404288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mixer->enable(name); 405288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 40609474df67278c0cd621b57c4aef1deaec4d8447fGlenn Kasten ftDump->mUnderruns = underruns; 4071295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten ftDump->mFramesReady = framesReady; 40897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 4092c3b2da3049627264b7c6b449a1622f002210f03John Grossman 4102c3b2da3049627264b7c6b449a1622f002210f03John Grossman int64_t pts; 4112c3b2da3049627264b7c6b449a1622f002210f03John Grossman if (outputSink == NULL || (OK != outputSink->getNextWriteTimestamp(&pts))) 4122c3b2da3049627264b7c6b449a1622f002210f03John Grossman pts = AudioBufferProvider::kInvalidPTS; 4132c3b2da3049627264b7c6b449a1622f002210f03John Grossman 41497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // process() is CPU-bound 4152c3b2da3049627264b7c6b449a1622f002210f03John Grossman mixer->process(pts); 41697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = MIXED; 41797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (mixBufferState == MIXED) { 41897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = UNDEFINED; 41997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 420288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten bool attemptedWrite = false; 421288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //bool didFullWrite = false; // dumpsys could display a count of partial writes 42297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if ((command & FastMixerState::WRITE) && (outputSink != NULL) && (mixBuffer != NULL)) { 42397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (mixBufferState == UNDEFINED) { 42497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten memset(mixBuffer, 0, frameCount * 2 * sizeof(short)); 42597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mixBufferState = ZEROED; 42697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 427fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten if (teeSink != NULL) { 428fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten (void) teeSink->write(mixBuffer, frameCount); 429fbae5dae5187aca9d974cbe15ec818e9c6f56705Glenn Kasten } 43097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME write() is non-blocking and lock-free for a properly implemented NBAIO sink, 43197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // but this code should be modified to handle both non-blocking and blocking sinks 43297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 43399c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 434d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten Tracer::traceBegin(ATRACE_TAG, "write"); 43599c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 43697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ssize_t framesWritten = outputSink->write(mixBuffer, frameCount); 43799c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 438d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten Tracer::traceEnd(ATRACE_TAG); 43999c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 44097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteSequence++; 44197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (framesWritten >= 0) { 442288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ALOG_ASSERT(framesWritten <= frameCount); 44397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mFramesWritten += framesWritten; 444288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //if ((size_t) framesWritten == frameCount) { 445288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // didFullWrite = true; 446288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten //} 44797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 44897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mWriteErrors++; 44997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 450288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten attemptedWrite = true; 45197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME count # of writes blocked excessively, CPU usage, etc. for dump 45297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 45397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 45497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // To be exactly periodic, compute the next sleep time based on current time. 45597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // This code doesn't have long-term stability when the sink is non-blocking. 45697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME To avoid drift, use the local audio clock or watch the sink's fill status. 45797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten struct timespec newTs; 45897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten int rc = clock_gettime(CLOCK_MONOTONIC, &newTs); 45997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (rc == 0) { 46097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (oldTsValid) { 46197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten time_t sec = newTs.tv_sec - oldTs.tv_sec; 46297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten long nsec = newTs.tv_nsec - oldTs.tv_nsec; 46380b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten ALOGE_IF(sec < 0 || (sec == 0 && nsec < 0), 46480b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten "clock_gettime(CLOCK_MONOTONIC) failed: was %ld.%09ld but now %ld.%09ld", 46580b3273cea8660fe8a5868d024d2788a1e083ffcGlenn Kasten oldTs.tv_sec, oldTs.tv_nsec, newTs.tv_sec, newTs.tv_nsec); 46697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (nsec < 0) { 46797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten --sec; 46897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten nsec += 1000000000; 46997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 470288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // To avoid an initial underrun on fast tracks after exiting standby, 471288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // do not start pulling data from tracks and mixing until warmup is complete. 472288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // Warmup is considered complete after the earlier of: 473eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten // MIN_WARMUP_CYCLES write() attempts and last one blocks for at least warmupNs 474288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // MAX_WARMUP_CYCLES write() attempts. 475288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten // This is overly conservative, but to get better accuracy requires a new HAL API. 476288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (!isWarm && attemptedWrite) { 477288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec += sec; 478288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec += nsec; 479288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten if (measuredWarmupTs.tv_nsec >= 1000000000) { 480288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_sec++; 481288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten measuredWarmupTs.tv_nsec -= 1000000000; 482288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 483288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten ++warmupCycles; 484eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten if ((nsec > warmupNs && warmupCycles >= MIN_WARMUP_CYCLES) || 485288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (warmupCycles >= MAX_WARMUP_CYCLES)) { 486288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten isWarm = true; 487288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mMeasuredWarmupTs = measuredWarmupTs; 488288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten dumpState->mWarmupCycles = warmupCycles; 489288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 490288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten } 491972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten sleepNs = -1; 492972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten if (isWarm) { 49397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (sec > 0 || nsec > underrunNs) { 49499c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 495d8e6fd35ec2b59ee7d873daf1f1d9d348221c7bcGlenn Kasten ScopedTrace st(ATRACE_TAG, "underrun"); 49699c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 49797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 49897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("underrun: time since last cycle %d.%03ld sec", 49997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 50097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mUnderruns++; 50197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 50297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else if (nsec < overrunNs) { 50397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten if (ignoreNextOverrun) { 50497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 50597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 50697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // FIXME only log occasionally 50797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ALOGV("overrun: time since last cycle %d.%03ld sec", 50897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten (int) sec, nsec / 1000000L); 50997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten dumpState->mOverruns++; 51097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 511972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // This forces a minimum cycle time. It: 512972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - compensates for an audio HAL with jitter due to sample rate conversion 513972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - works with a variable buffer depth audio HAL that never pulls at a rate 514972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // < than overrunNs per buffer. 515972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // - recovers from overrun immediately after underrun 516972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten // It doesn't work with a non-blocking audio HAL. 517972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten sleepNs = forceNs - nsec; 51897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 51997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = false; 52097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 521972af221ae7253e406e0e1ea853e56a3010ed6b1Glenn Kasten } 52297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 523eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten if (isWarm) { 52442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // advance the FIFO queue bounds 52542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = bounds & (FastMixerDumpState::kSamplingN - 1); 526e58ccce45598bcf4b4874b0e87cd1eb8d05ba9a9Glenn Kasten bounds = (bounds & 0xFFFF0000) | ((bounds + 1) & 0xFFFF); 52742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (full) { 52842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten bounds += 0x10000; 52942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else if (!(bounds & (FastMixerDumpState::kSamplingN - 1))) { 53042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten full = true; 53197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 53242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the delta value of clock_gettime(CLOCK_MONOTONIC) 53342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t monotonicNs = nsec; 53442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 53542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten monotonicNs += sec * 1000000000; 53642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 53742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // compute the raw CPU load = delta value of clock_gettime(CLOCK_THREAD_CPUTIME_ID) 53842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t loadNs = 0; 53942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten struct timespec newLoad; 54042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &newLoad); 54142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (rc == 0) { 54242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (oldLoadValid) { 54342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten sec = newLoad.tv_sec - oldLoad.tv_sec; 54442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec = newLoad.tv_nsec - oldLoad.tv_nsec; 54542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (nsec < 0) { 54642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten --sec; 54742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten nsec += 1000000000; 54842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 54942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs = nsec; 55042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (sec > 0 && sec < 4) { 55142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs += sec * 1000000000; 55242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 55342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } else { 55442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // first time through the loop 55542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoadValid = true; 55642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 55742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten oldLoad = newLoad; 55842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 5590a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 56042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // get the absolute value of CPU clock frequency in kHz 56142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten int cpuNum = sched_getcpu(); 56242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t kHz = tcu.getCpukHz(cpuNum); 563c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz = (kHz << 4) | (cpuNum & 0xF); 5640a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 56542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // save values in FIFO queues for dumpsys 56642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // these stores #1, #2, #3 are not atomic with respect to each other, 56742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // or with respect to store #4 below 56842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mMonotonicNs[i] = monotonicNs; 56942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mLoadNs[i] = loadNs; 5700a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 57142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mCpukHz[i] = kHz; 5720a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 57342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // this store #4 is not atomic with respect to stores #1, #2, #3 above, but 57442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // the newest open and oldest closed halves are atomic with respect to each other 57542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten dumpState->mBounds = bounds; 57699c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#if defined(ATRACE_TAG) && (ATRACE_TAG != ATRACE_TAG_NEVER) 57799c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("cycle_ms", monotonicNs / 1000000); 57899c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten ATRACE_INT("load_us", loadNs / 1000); 57999c99d00beb43b939dedc9ffb07adb89f6a85ba5Glenn Kasten#endif 580eb15716b59020f342df62bce5b293f0603b94861Glenn Kasten } 58197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 58297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 58397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // first time through the loop 58497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = true; 58597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 58697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten ignoreNextOverrun = true; 58797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 58897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTs = newTs; 58997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } else { 59097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // monotonic clock is broken 59197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten oldTsValid = false; 59297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten sleepNs = periodNs; 59397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 59497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 59542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten 59697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } // for (;;) 59797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 59897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten // never return 'true'; Thread::_threadLoop() locks mutex which can result in priority inversion 59997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 60097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 60197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::FastMixerDumpState() : 60297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten mCommand(FastMixerState::INITIAL), mWriteSequence(0), mFramesWritten(0), 60321e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks(0), mWriteErrors(0), mUnderruns(0), mOverruns(0), 6041295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mSampleRate(0), mFrameCount(0), /* mMeasuredWarmupTs({0, 0}), */ mWarmupCycles(0), 6051295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mTrackMask(0) 60697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 60742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten , mBounds(0) 60897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 60997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 610288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_sec = 0; 611288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten mMeasuredWarmupTs.tv_nsec = 0; 61242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // sample arrays aren't accessed atomically with respect to the bounds, 61342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // so clearing reduces chance for dumpsys to read random uninitialized samples 61442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mMonotonicNs, 0, sizeof(mMonotonicNs)); 61542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mLoadNs, 0, sizeof(mLoadNs)); 6160a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 61742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten memset(&mCpukHz, 0, sizeof(mCpukHz)); 6180a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 61997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 62097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 62197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn KastenFastMixerDumpState::~FastMixerDumpState() 62297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 62397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 62497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 6251ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten// helper function called by qsort() 6261ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kastenstatic int compare_uint32_t(const void *pa, const void *pb) 6271ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten{ 6281ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t a = *(const uint32_t *)pa; 6291ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t b = *(const uint32_t *)pb; 6301ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (a < b) { 6311ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return -1; 6321ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } else if (a > b) { 6331ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return 1; 6341ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } else { 6351ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten return 0; 6361ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 6371ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten} 6381ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten 63997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kastenvoid FastMixerDumpState::dump(int fd) 64097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten{ 641868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten if (mCommand == FastMixerState::INITIAL) { 642868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten fdprintf(fd, "FastMixer not initialized\n"); 643868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten return; 644868c0abe9f26852c217bc201b337e72c68f829b8Glenn Kasten } 64597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#define COMMAND_MAX 32 64697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten char string[COMMAND_MAX]; 64797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten switch (mCommand) { 64897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::INITIAL: 64997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "INITIAL"); 65097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 65197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::HOT_IDLE: 65297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "HOT_IDLE"); 65397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 65497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::COLD_IDLE: 65597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "COLD_IDLE"); 65697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 65797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::EXIT: 65897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "EXIT"); 65997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX: 66197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX"); 66297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66397b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::WRITE: 66497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "WRITE"); 66597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten case FastMixerState::MIX_WRITE: 66797b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten strcpy(string, "MIX_WRITE"); 66897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 66997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten default: 67097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten snprintf(string, COMMAND_MAX, "%d", mCommand); 67197b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten break; 67297b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten } 67342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double measuredWarmupMs = (mMeasuredWarmupTs.tv_sec * 1000.0) + 674288ed2103d96f3aabd7e6bea3c080ab6db164049Glenn Kasten (mMeasuredWarmupTs.tv_nsec / 1000000.0); 67542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten double mixPeriodSec = (double) mFrameCount / (double) mSampleRate; 67697b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten fdprintf(fd, "FastMixer command=%s writeSequence=%u framesWritten=%u\n" 67721e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten " numTracks=%u writeErrors=%u underruns=%u overruns=%u\n" 67842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " sampleRate=%u frameCount=%u measuredWarmup=%.3g ms, warmupCycles=%u\n" 67942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mixPeriod=%.2f ms\n", 68097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten string, mWriteSequence, mFramesWritten, 68121e8c50bd13ebe44f3088e26c9c6df0e163c469cGlenn Kasten mNumTracks, mWriteErrors, mUnderruns, mOverruns, 68242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mSampleRate, mFrameCount, measuredWarmupMs, mWarmupCycles, 68342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten mixPeriodSec * 1e3); 68497b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#ifdef FAST_MIXER_STATISTICS 68542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // find the interval of valid samples 68642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t bounds = mBounds; 68742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t newestOpen = bounds & 0xFFFF; 68842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t oldestClosed = bounds >> 16; 68942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t n = (newestOpen - oldestClosed) & 0xFFFF; 69042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten if (n > kSamplingN) { 69142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten ALOGE("too many samples %u", n); 69242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten n = kSamplingN; 69342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 69442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency, 69542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // and adjusted CPU load in MHz normalized for CPU clock frequency 6960a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten CentralTendencyStatistics wall, loadNs; 6970a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 6980a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten CentralTendencyStatistics kHz, loadMHz; 69942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t previousCpukHz = 0; 7000a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 7011ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // Assuming a normal distribution for cycle times, three standard deviations on either side of 7021ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // the mean account for 99.73% of the population. So if we take each tail to be 1/1000 of the 7031ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // sample set, we get 99.8% combined, or close to three standard deviations. 7041ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten static const uint32_t kTailDenominator = 1000; 7051ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t *tail = n >= kTailDenominator ? new uint32_t[n] : NULL; 70642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten // loop over all the samples 7071ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten for (uint32_t j = 0; j < n; ++j) { 70842d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten size_t i = oldestClosed++ & (kSamplingN - 1); 70942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t wallNs = mMonotonicNs[i]; 7101ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (tail != NULL) { 7111ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten tail[j] = wallNs; 7121ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 71342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.sample(wallNs); 71442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten uint32_t sampleLoadNs = mLoadNs[i]; 71542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.sample(sampleLoadNs); 7160a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 7170a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten uint32_t sampleCpukHz = mCpukHz[i]; 718c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten // skip bad kHz samples 719c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if ((sampleCpukHz & ~0xF) != 0) { 720c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten kHz.sample(sampleCpukHz >> 4); 721c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten if (sampleCpukHz == previousCpukHz) { 722c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double megacycles = (double) sampleLoadNs * (double) (sampleCpukHz >> 4) * 1e-12; 723c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten double adjMHz = megacycles / mixPeriodSec; // _not_ wallNs * 1e9 724c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten loadMHz.sample(adjMHz); 725c059bd4246c1b3944965be921e5b334d51cd236cGlenn Kasten } 72642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 72742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten previousCpukHz = sampleCpukHz; 7280a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 72942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten } 73042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, "Simple moving statistics over last %.1f seconds:\n", wall.n() * mixPeriodSec); 73142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " wall clock time in ms per mix cycle:\n" 73242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", 73342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten wall.mean()*1e-6, wall.minimum()*1e-6, wall.maximum()*1e-6, wall.stddev()*1e-6); 73442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " raw CPU load in us per mix cycle:\n" 73542d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 73642d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.mean()*1e-3, loadNs.minimum()*1e-3, loadNs.maximum()*1e-3, 73742d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadNs.stddev()*1e-3); 7380a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#ifdef CPU_FREQUENCY_STATISTICS 73942d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " CPU clock frequency in MHz:\n" 74042d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.0f min=%.0f max=%.0f stddev=%.0f\n", 74142d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten kHz.mean()*1e-3, kHz.minimum()*1e-3, kHz.maximum()*1e-3, kHz.stddev()*1e-3); 74242d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten fdprintf(fd, " adjusted CPU load in MHz (i.e. normalized for CPU clock frequency):\n" 74342d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten " mean=%.1f min=%.1f max=%.1f stddev=%.1f\n", 74442d45cfd0c3d62357a6549c62f535e4d4fe08d91Glenn Kasten loadMHz.mean(), loadMHz.minimum(), loadMHz.maximum(), loadMHz.stddev()); 74597b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten#endif 7461ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten if (tail != NULL) { 7471ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten qsort(tail, n, sizeof(uint32_t), compare_uint32_t); 7481ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten // assume same number of tail samples on each side, left and right 7491ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten uint32_t count = n / kTailDenominator; 7501ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten CentralTendencyStatistics left, right; 7511ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten for (uint32_t i = 0; i < count; ++i) { 7521ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten left.sample(tail[i]); 7531ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.sample(tail[n - (i + 1)]); 7541ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 7551ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten fdprintf(fd, "Distribution of mix cycle times in ms for the tails (> ~3 stddev outliers):\n" 7561ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten " left tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n" 7571ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten " right tail: mean=%.2f min=%.2f max=%.2f stddev=%.2f\n", 7581ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten left.mean()*1e-6, left.minimum()*1e-6, left.maximum()*1e-6, left.stddev()*1e-6, 7591ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.mean()*1e-6, right.minimum()*1e-6, right.maximum()*1e-6, 7601ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten right.stddev()*1e-6); 7611ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten delete[] tail; 7621ab212cf5cfa5b88c801840e11e3191cd10f48e4Glenn Kasten } 7630a14c4ce1a41bc09eb7855fa531a3af629a69139Glenn Kasten#endif 7641295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // The active track mask and track states are updated non-atomically. 7651295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // So if we relied on isActive to decide whether to display, 7661295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // then we might display an obsolete track or omit an active track. 7671295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // Instead we always display all tracks, with an indication 7681295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten // of whether we think the track is active. 7691295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten uint32_t trackMask = mTrackMask; 7701295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Fast tracks: kMaxFastTracks=%u activeMask=%#x\n", 7711295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten FastMixerState::kMaxFastTracks, trackMask); 7721295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "Index Active Full Partial Empty Recent Ready\n"); 7731295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten for (uint32_t i = 0; i < FastMixerState::kMaxFastTracks; ++i, trackMask >>= 1) { 7741295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten bool isActive = trackMask & 1; 7751295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackDump *ftDump = &mTracks[i]; 7761295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const FastTrackUnderruns& underruns = ftDump->mUnderruns; 7771295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten const char *mostRecent; 7781295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten switch (underruns.mBitFields.mMostRecent) { 7791295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_FULL: 7801295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "full"; 7811295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7821295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_PARTIAL: 7831295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "partial"; 7841295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7851295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten case UNDERRUN_EMPTY: 7861295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "empty"; 7871295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7881295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten default: 7891295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent = "?"; 7901295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten break; 7911295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 7921295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten fdprintf(fd, "%5u %6s %4u %7u %5u %7s %5u\n", i, isActive ? "yes" : "no", 7931295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mFull) & UNDERRUN_MASK, 7941295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mPartial) & UNDERRUN_MASK, 7951295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten (underruns.mBitFields.mEmpty) & UNDERRUN_MASK, 7961295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten mostRecent, ftDump->mFramesReady); 7971295bb4dcff7b29c75cd23746816df12a871d72cGlenn Kasten } 79897b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} 79997b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten 80097b5d0d5b5ef766eb5dd680d05a5d199662d4ae0Glenn Kasten} // namespace android 801