double real_time_now() {
#ifdef ANDROID
if (false && gl_extensions.EGL_NV_system_time) {
// This is needed to profile using PerfHUD on Tegra
if (_frequency == 0) {
_frequency = eglGetSystemTimeFrequencyNV();
_starttime = eglGetSystemTimeNV();
}
uint64_t cur = eglGetSystemTimeNV();
int64_t diff = cur - _starttime;
return (double)diff / (double)_frequency;
}
#endif
static time_t start;
struct timeval tv;
gettimeofday(&tv, NULL);
if (start == 0) {
start = tv.tv_sec;
}
tv.tv_sec -= start;
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
}
double real_time_now() {
#ifdef ANDROID
if (false && gl_extensions.EGL_NV_system_time) {
// This is needed to profile using PerfHUD on Tegra
if (_frequency == 0) {
_frequency = eglGetSystemTimeFrequencyNV();
_starttime = eglGetSystemTimeNV();
}
uint64_t cur = eglGetSystemTimeNV();
int64_t diff = cur - _starttime;
return (double)diff / (double)_frequency;
}
#if 0
// This clock is really "choppy" on Nexus 9!
struct timespec time;
clock_gettime(CLOCK_MONOTONIC_RAW, &time);
return time.tv_sec + time.tv_nsec / 1.0e9;
#else
static time_t start;
struct timeval tv;
gettimeofday(&tv, NULL);
if (start == 0) {
start = tv.tv_sec;
}
tv.tv_sec -= start;
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
#endif
#else
static time_t start;
struct timeval tv;
gettimeofday(&tv, NULL);
if (start == 0) {
start = tv.tv_sec;
}
tv.tv_sec -= start;
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
#endif
}
static jlong android_view_HardwareRenderer_getSystemTime(JNIEnv* env, jobject clazz) {
if (uirenderer::Extensions::getInstance().hasNvSystemTime()) {
return eglGetSystemTimeNV();
}
return systemTime(SYSTEM_TIME_MONOTONIC);
}
