void
iterateLife(
LIFE_T *life)
{
memcpy(life->field, life->fieldNext, life->fieldLength);
if (life->numberOfThreads == 0)
{
iterateLifeKernel(life, 0);
}
else
{
pthread_barrier_wait(&(life->startIterationBarrier));
pthread_barrier_wait(&(life->finishedIterationBarrier));
}
int result = 0;
VC_IMAGE_TYPE_T type = VC_IMAGE_RGBA16;
result = vc_dispmanx_resource_write_data(life->backResource,
type,
life->pitch,
life->buffer,
&(life->bmpRect));
assert(result == 0);
}
void *
workerLife(
void *arg)
{
LIFE_T *life = arg;
int32_t thread = -1;
int32_t i;
for (i = 0 ; i < life->numberOfThreads ; i++)
{
if (pthread_equal(pthread_self(), life->threads[i]))
{
thread = i;
break;
}
}
if (thread == -1)
{
fprintf(stderr, "life: cannot find thread index\n");
return NULL;
}
while (true)
{
pthread_barrier_wait(&(life->startIterationBarrier));
iterateLifeKernel(life, thread);
pthread_barrier_wait(&(life->finishedIterationBarrier));
}
return NULL;
}
void *
workerLife(
void *arg)
{
LIFE_T *life = arg;
int32_t thread = -1;
int32_t i;
for (i = 0 ; i < life->numberOfThreads ; i++)
{
if (pthread_equal(pthread_self(), life->threads[i]))
{
thread = i;
}
}
while (true)
{
pthread_barrier_wait(&(life->startIterationBarrier));
iterateLifeKernel(life, thread);
pthread_barrier_wait(&(life->finishedIterationBarrier));
}
return arg;
}