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#include "RenderScript.h"
#include <sys/time.h>
#include "ScriptC_latency.h"
int main(int argc, char** argv)
{
int iters = 100;
int numElems = 1000;
bool forceCpu = false;
bool synchronous = false;
if (argc >= 2) {
iters = atoi(argv[1]);
if (iters <= 0) {
printf("iters must be positive\n");
return 1;
}
}
printf("iters = %d\n", iters);
if (argc >= 3) {
numElems = atoi(argv[2]);
if (numElems <= 0) {
printf("numElems must be positive\n");
return 1;
}
}
if (argc >= 4) {
int temp = atoi(argv[3]);
if (temp != 0)
forceCpu = true;
}
if (argc >= 5) {
int temp = atoi(argv[4]);
if (temp != 0)
synchronous = true;
}
if (forceCpu)
printf("forcing CPU\n");
if (synchronous)
printf("forcing synchronous\n");
printf("numElems = %d\n", numElems);
sp<RS> rs = new RS();
uint32_t flags = 0;
if (forceCpu) flags |= RS_INIT_LOW_LATENCY;
if (synchronous) flags |= RS_INIT_SYNCHRONOUS;
if (!rs->init("/system/bin", flags)) {
printf("Could not initialize RenderScript\n");
return 1;
}
sp<const Element> e = Element::U32(rs);
Type::Builder tb(rs, e);
tb.setX(numElems);
sp<const Type> t = tb.create();
uint32_t *buf = new uint32_t[numElems];
sp<Allocation> ain = Allocation::createTyped(rs, t);
sp<Allocation> aout = Allocation::createTyped(rs, t);
sp<ScriptC_latency> sc = new ScriptC_latency(rs);
struct timeval start, stop;
gettimeofday(&start, nullptr);
for (int i = 0; i < iters; i++) {
sc->forEach_root(ain, aout);
}
rs->finish();
gettimeofday(&stop, nullptr);
long long elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
printf("elapsed time : %lld microseconds\n", elapsed);
printf("time per iter: %f microseconds\n", (double)elapsed / iters);
gettimeofday(&start, nullptr);
for (int i = 0; i < iters; i++) {
ain->copy1DFrom(buf);
sc->forEach_root(ain, aout);
aout->copy1DTo(buf);
}
rs->finish();
gettimeofday(&stop, nullptr);
elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
printf("elapsed time with copy : %lld microseconds\n", elapsed);
printf("time per iter with copy: %f microseconds\n", (double)elapsed / iters);
sc.clear();
t.clear();
e.clear();
ain.clear();
aout.clear();
}