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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <string.h>
#include "device_task.h"
#include "util_algorithm.h"
#include "util_time.h"
CCL_NAMESPACE_BEGIN
/* Device Task */
DeviceTask::DeviceTask(Type type_)
: type(type_), x(0), y(0), w(0), h(0), rgba(0), buffer(0),
sample(0), num_samples(1), resolution(0),
shader_input(0), shader_output(0),
shader_eval_type(0), shader_x(0), shader_w(0)
{
last_update_time = time_dt();
}
void DeviceTask::split_max_size(list<DeviceTask>& tasks, int max_size)
{
int num;
if(type == SHADER) {
num = (shader_w + max_size - 1)/max_size;
}
else {
max_size = max(1, max_size/w);
num = (h + max_size - 1)/max_size;
}
split(tasks, num);
}
void DeviceTask::split(list<DeviceTask>& tasks, int num)
{
if(type == SHADER) {
num = min(shader_w, num);
for(int i = 0; i < num; i++) {
int tx = shader_x + (shader_w/num)*i;
int tw = (i == num-1)? shader_w - i*(shader_w/num): shader_w/num;
DeviceTask task = *this;
task.shader_x = tx;
task.shader_w = tw;
tasks.push_back(task);
}
}
else if(type == PATH_TRACE) {
for(int i = 0; i < num; i++)
tasks.push_back(*this);
}
else {
num = min(h, num);
for(int i = 0; i < num; i++) {
int ty = y + (h/num)*i;
int th = (i == num-1)? h - i*(h/num): h/num;
DeviceTask task = *this;
task.y = ty;
task.h = th;
tasks.push_back(task);
}
}
}
void DeviceTask::update_progress(RenderTile &rtile)
{
if (type != PATH_TRACE)
return;
if(update_progress_sample)
update_progress_sample();
if(update_tile_sample) {
double current_time = time_dt();
if (current_time - last_update_time >= 1.0) {
update_tile_sample(rtile);
last_update_time = current_time;
}
}
}
CCL_NAMESPACE_END
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