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#include "ChromeTraceUtil.h"
#include "b3Clock.h"
#include "LinearMath/btQuickprof.h"
#include "LinearMath/btAlignedObjectArray.h"
#include "Bullet3Common/b3Logging.h"
#include <stdio.h>
#include <climits>
struct btTiming
{
const char* m_name;
int m_threadId;
unsigned long long int m_usStartTime;
unsigned long long int m_usEndTime;
};
FILE* gTimingFile = 0;
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif //__STDC_FORMAT_MACROS
//see http://stackoverflow.com/questions/18107426/printf-format-for-unsigned-int64-on-windows
#ifndef _WIN32
#include <inttypes.h>
#endif
#define BT_TIMING_CAPACITY 16 * 65536
static bool m_firstTiming = true;
struct btTimings
{
btTimings()
: m_numTimings(0),
m_activeBuffer(0)
{
}
void flush()
{
for (int i = 0; i < m_numTimings; i++)
{
const char* name = m_timings[m_activeBuffer][i].m_name;
int threadId = m_timings[m_activeBuffer][i].m_threadId;
unsigned long long int startTime = m_timings[m_activeBuffer][i].m_usStartTime;
unsigned long long int endTime = m_timings[m_activeBuffer][i].m_usEndTime;
if (!m_firstTiming)
{
fprintf(gTimingFile, ",\n");
}
m_firstTiming = false;
if (startTime > endTime)
{
endTime = startTime;
}
unsigned long long int startTimeDiv1000 = startTime / 1000;
unsigned long long int endTimeDiv1000 = endTime / 1000;
#if 0
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%" PRIu64 ".123 ,\"ph\":\"B\",\"name\":\"%s\",\"args\":{}},\n",
threadId, startTimeDiv1000, name);
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%" PRIu64 ".234 ,\"ph\":\"E\",\"name\":\"%s\",\"args\":{}}",
threadId, endTimeDiv1000, name);
#else
unsigned int startTimeRem1000 = startTime % 1000;
unsigned int endTimeRem1000 = endTime % 1000;
char startTimeRem1000Str[16];
char endTimeRem1000Str[16];
if (startTimeRem1000 < 10)
{
sprintf(startTimeRem1000Str, "00%d", startTimeRem1000);
}
else
{
if (startTimeRem1000 < 100)
{
sprintf(startTimeRem1000Str, "0%d", startTimeRem1000);
}
else
{
sprintf(startTimeRem1000Str, "%d", startTimeRem1000);
}
}
if (endTimeRem1000 < 10)
{
sprintf(endTimeRem1000Str, "00%d", endTimeRem1000);
}
else
{
if (endTimeRem1000 < 100)
{
sprintf(endTimeRem1000Str, "0%d", endTimeRem1000);
}
else
{
sprintf(endTimeRem1000Str, "%d", endTimeRem1000);
}
}
char newname[1024];
static int counter2 = 0;
sprintf(newname, "%s%d", name, counter2++);
#ifdef _WIN32
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%I64d.%s ,\"ph\":\"B\",\"name\":\"%s\",\"args\":{}},\n",
threadId, startTimeDiv1000, startTimeRem1000Str, newname);
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%I64d.%s ,\"ph\":\"E\",\"name\":\"%s\",\"args\":{}}",
threadId, endTimeDiv1000, endTimeRem1000Str, newname);
#else
// Note: on 64b build, PRIu64 resolves in 'lu' whereas timings ('ts') have to be printed as 'llu'.
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%llu.%s ,\"ph\":\"B\",\"name\":\"%s\",\"args\":{}},\n",
threadId, startTimeDiv1000, startTimeRem1000Str, newname);
fprintf(gTimingFile, "{\"cat\":\"timing\",\"pid\":1,\"tid\":%d,\"ts\":%llu.%s ,\"ph\":\"E\",\"name\":\"%s\",\"args\":{}}",
threadId, endTimeDiv1000, endTimeRem1000Str, newname);
#endif
#endif
}
m_numTimings = 0;
}
void addTiming(const char* name, int threadId, unsigned long long int startTime, unsigned long long int endTime)
{
if (m_numTimings >= BT_TIMING_CAPACITY)
{
return;
}
if (m_timings[0].size() == 0)
{
m_timings[0].resize(BT_TIMING_CAPACITY);
}
int slot = m_numTimings++;
m_timings[m_activeBuffer][slot].m_name = name;
m_timings[m_activeBuffer][slot].m_threadId = threadId;
m_timings[m_activeBuffer][slot].m_usStartTime = startTime;
m_timings[m_activeBuffer][slot].m_usEndTime = endTime;
}
int m_numTimings;
int m_activeBuffer;
btAlignedObjectArray<btTiming> m_timings[1];
};
//#ifndef BT_NO_PROFILE
btTimings gTimings[BT_QUICKPROF_MAX_THREAD_COUNT];
#define MAX_NESTING 1024
int gStackDepths[BT_QUICKPROF_MAX_THREAD_COUNT] = {0};
const char* gFuncNames[BT_QUICKPROF_MAX_THREAD_COUNT][MAX_NESTING];
unsigned long long int gStartTimes[BT_QUICKPROF_MAX_THREAD_COUNT][MAX_NESTING];
//#endif
btClock clk;
bool gProfileDisabled = true;
void MyDummyEnterProfileZoneFunc(const char* msg)
{
}
void MyDummyLeaveProfileZoneFunc()
{
}
void MyEnterProfileZoneFunc(const char* msg)
{
if (gProfileDisabled)
return;
int threadId = btQuickprofGetCurrentThreadIndex2();
if (threadId < 0 || threadId >= BT_QUICKPROF_MAX_THREAD_COUNT)
return;
if (gStackDepths[threadId] >= MAX_NESTING)
{
btAssert(0);
return;
}
gFuncNames[threadId][gStackDepths[threadId]] = msg;
gStartTimes[threadId][gStackDepths[threadId]] = clk.getTimeNanoseconds();
if (gStartTimes[threadId][gStackDepths[threadId]] <= gStartTimes[threadId][gStackDepths[threadId] - 1])
{
gStartTimes[threadId][gStackDepths[threadId]] = 1 + gStartTimes[threadId][gStackDepths[threadId] - 1];
}
gStackDepths[threadId]++;
}
void MyLeaveProfileZoneFunc()
{
if (gProfileDisabled)
return;
int threadId = btQuickprofGetCurrentThreadIndex2();
if (threadId < 0 || threadId >= BT_QUICKPROF_MAX_THREAD_COUNT)
return;
if (gStackDepths[threadId] <= 0)
{
return;
}
gStackDepths[threadId]--;
const char* name = gFuncNames[threadId][gStackDepths[threadId]];
unsigned long long int startTime = gStartTimes[threadId][gStackDepths[threadId]];
unsigned long long int endTime = clk.getTimeNanoseconds();
gTimings[threadId].addTiming(name, threadId, startTime, endTime);
}
void b3ChromeUtilsStartTimings()
{
m_firstTiming = true;
gProfileDisabled = false; //true;
b3SetCustomEnterProfileZoneFunc(MyEnterProfileZoneFunc);
b3SetCustomLeaveProfileZoneFunc(MyLeaveProfileZoneFunc);
//also for Bullet 2.x API
btSetCustomEnterProfileZoneFunc(MyEnterProfileZoneFunc);
btSetCustomLeaveProfileZoneFunc(MyLeaveProfileZoneFunc);
}
void b3ChromeUtilsStopTimingsAndWriteJsonFile(const char* fileNamePrefix)
{
b3SetCustomEnterProfileZoneFunc(MyDummyEnterProfileZoneFunc);
b3SetCustomLeaveProfileZoneFunc(MyDummyLeaveProfileZoneFunc);
//also for Bullet 2.x API
btSetCustomEnterProfileZoneFunc(MyDummyEnterProfileZoneFunc);
btSetCustomLeaveProfileZoneFunc(MyDummyLeaveProfileZoneFunc);
char fileName[1024];
static int fileCounter = 0;
sprintf(fileName, "%s_%d.json", fileNamePrefix, fileCounter++);
gTimingFile = fopen(fileName, "w");
if (gTimingFile)
{
fprintf(gTimingFile, "{\"traceEvents\":[\n");
//dump the content to file
for (int i = 0; i < BT_QUICKPROF_MAX_THREAD_COUNT; i++)
{
if (gTimings[i].m_numTimings)
{
printf("Writing %d timings for thread %d\n", gTimings[i].m_numTimings, i);
gTimings[i].flush();
}
}
fprintf(gTimingFile, "\n],\n\"displayTimeUnit\": \"ns\"}");
fclose(gTimingFile);
}
else
{
b3Printf("Error opening file");
b3Printf(fileName);
}
gTimingFile = 0;
}
void b3ChromeUtilsEnableProfiling()
{
gProfileDisabled = false;
}
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