void task_wait()
{
RPCSend snd(socket, "task_wait");
snd.write();
list<RenderTile> the_tiles;
/* todo: run this threaded for connecting to multiple clients */
for(;;) {
RPCReceive rcv(socket);
RenderTile tile;
if(rcv.name == "acquire_tile") {
/* todo: watch out for recursive calls! */
if(the_task.acquire_tile(this, tile)) { /* write return as bool */
the_tiles.push_back(tile);
RPCSend snd(socket, "acquire_tile");
snd.add(tile);
snd.write();
}
else {
RPCSend snd(socket, "acquire_tile_none");
snd.write();
}
}
else if(rcv.name == "release_tile") {
rcv.read(tile);
for(list<RenderTile>::iterator it = the_tiles.begin(); it != the_tiles.end(); it++) {
if(tile.x == it->x && tile.y == it->y && tile.start_sample == it->start_sample) {
tile.buffers = it->buffers;
the_tiles.erase(it);
break;
}
}
assert(tile.buffers != NULL);
the_task.release_tile(tile);
RPCSend snd(socket, "release_tile");
snd.write();
}
else if(rcv.name == "task_wait_done")
break;
}
}
void thread_path_trace(DeviceTask& task)
{
if(task_pool.canceled()) {
if(task.need_finish_queue == false)
return;
}
KernelGlobals kg = kernel_globals;
#ifdef WITH_OSL
OSLShader::thread_init(&kg, &kernel_globals, &osl_globals);
#endif
RenderTile tile;
while(task.acquire_tile(this, tile)) {
float *render_buffer = (float*)tile.buffer;
uint *rng_state = (uint*)tile.rng_state;
int start_sample = tile.start_sample;
int end_sample = tile.start_sample + tile.num_samples;
#ifdef WITH_CYCLES_OPTIMIZED_KERNEL_AVX
if(system_cpu_support_avx()) {
for(int sample = start_sample; sample < end_sample; sample++) {
if (task.get_cancel() || task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
for(int y = tile.y; y < tile.y + tile.h; y++) {
for(int x = tile.x; x < tile.x + tile.w; x++) {
kernel_cpu_avx_path_trace(&kg, render_buffer, rng_state,
sample, x, y, tile.offset, tile.stride);
}
}
tile.sample = sample + 1;
task.update_progress(tile);
}
}
else
#endif
#ifdef WITH_CYCLES_OPTIMIZED_KERNEL_SSE41
if(system_cpu_support_sse41()) {
for(int sample = start_sample; sample < end_sample; sample++) {
if (task.get_cancel() || task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
for(int y = tile.y; y < tile.y + tile.h; y++) {
for(int x = tile.x; x < tile.x + tile.w; x++) {
kernel_cpu_sse41_path_trace(&kg, render_buffer, rng_state,
sample, x, y, tile.offset, tile.stride);
}
}
tile.sample = sample + 1;
task.update_progress(tile);
}
}
else
#endif
#ifdef WITH_CYCLES_OPTIMIZED_KERNEL_SSE3
if(system_cpu_support_sse3()) {
for(int sample = start_sample; sample < end_sample; sample++) {
if (task.get_cancel() || task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
for(int y = tile.y; y < tile.y + tile.h; y++) {
for(int x = tile.x; x < tile.x + tile.w; x++) {
kernel_cpu_sse3_path_trace(&kg, render_buffer, rng_state,
sample, x, y, tile.offset, tile.stride);
}
}
tile.sample = sample + 1;
task.update_progress(tile);
}
}
else
#endif
#ifdef WITH_CYCLES_OPTIMIZED_KERNEL_SSE2
if(system_cpu_support_sse2()) {
for(int sample = start_sample; sample < end_sample; sample++) {
if (task.get_cancel() || task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
for(int y = tile.y; y < tile.y + tile.h; y++) {
for(int x = tile.x; x < tile.x + tile.w; x++) {
kernel_cpu_sse2_path_trace(&kg, render_buffer, rng_state,
sample, x, y, tile.offset, tile.stride);
}
}
tile.sample = sample + 1;
task.update_progress(tile);
}
}
else
#endif
{
for(int sample = start_sample; sample < end_sample; sample++) {
if (task.get_cancel() || task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
for(int y = tile.y; y < tile.y + tile.h; y++) {
for(int x = tile.x; x < tile.x + tile.w; x++) {
kernel_cpu_path_trace(&kg, render_buffer, rng_state,
sample, x, y, tile.offset, tile.stride);
}
}
tile.sample = sample + 1;
task.update_progress(tile);
}
}
task.release_tile(tile);
if(task_pool.canceled()) {
if(task.need_finish_queue == false)
break;
}
}
#ifdef WITH_OSL
OSLShader::thread_free(&kg);
#endif
}
void task_wait()
{
thread_scoped_lock lock(rpc_lock);
RPCSend snd(socket, &error_func, "task_wait");
snd.write();
lock.unlock();
TileList the_tiles;
/* todo: run this threaded for connecting to multiple clients */
for(;;) {
if(error_func.have_error())
break;
RenderTile tile;
lock.lock();
RPCReceive rcv(socket, &error_func);
if(rcv.name == "acquire_tile") {
lock.unlock();
/* todo: watch out for recursive calls! */
if(the_task.acquire_tile(this, tile)) { /* write return as bool */
the_tiles.push_back(tile);
lock.lock();
RPCSend snd(socket, &error_func, "acquire_tile");
snd.add(tile);
snd.write();
lock.unlock();
}
else {
lock.lock();
RPCSend snd(socket, &error_func, "acquire_tile_none");
snd.write();
lock.unlock();
}
}
else if(rcv.name == "release_tile") {
rcv.read(tile);
lock.unlock();
TileList::iterator it = tile_list_find(the_tiles, tile);
if (it != the_tiles.end()) {
tile.buffers = it->buffers;
the_tiles.erase(it);
}
assert(tile.buffers != NULL);
the_task.release_tile(tile);
lock.lock();
RPCSend snd(socket, &error_func, "release_tile");
snd.write();
lock.unlock();
}
else if(rcv.name == "task_wait_done") {
lock.unlock();
break;
}
else
lock.unlock();
}
}
void thread_render(DeviceTask &task)
{
if (task_pool.canceled()) {
if (task.need_finish_queue == false)
return;
}
/* allocate buffer for kernel globals */
device_only_memory<KernelGlobals> kgbuffer(this, "kernel_globals");
kgbuffer.alloc_to_device(1);
KernelGlobals *kg = new ((void *)kgbuffer.device_pointer)
KernelGlobals(thread_kernel_globals_init());
profiler.add_state(&kg->profiler);
CPUSplitKernel *split_kernel = NULL;
if (use_split_kernel) {
split_kernel = new CPUSplitKernel(this);
if (!split_kernel->load_kernels(requested_features)) {
thread_kernel_globals_free((KernelGlobals *)kgbuffer.device_pointer);
kgbuffer.free();
delete split_kernel;
return;
}
}
RenderTile tile;
DenoisingTask denoising(this, task);
denoising.profiler = &kg->profiler;
while (task.acquire_tile(this, tile)) {
if (tile.task == RenderTile::PATH_TRACE) {
if (use_split_kernel) {
device_only_memory<uchar> void_buffer(this, "void_buffer");
split_kernel->path_trace(&task, tile, kgbuffer, void_buffer);
}
else {
path_trace(task, tile, kg);
}
}
else if (tile.task == RenderTile::DENOISE) {
denoise(denoising, tile);
task.update_progress(&tile, tile.w * tile.h);
}
task.release_tile(tile);
if (task_pool.canceled()) {
if (task.need_finish_queue == false)
break;
}
}
profiler.remove_state(&kg->profiler);
thread_kernel_globals_free((KernelGlobals *)kgbuffer.device_pointer);
kg->~KernelGlobals();
kgbuffer.free();
delete split_kernel;
}