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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <string.h>
#include "device/device_task.h"
#include "render/buffers.h"
#include "util/util_algorithm.h"
#include "util/util_time.h"
CCL_NAMESPACE_BEGIN
/* Device Task */
DeviceTask::DeviceTask(Type type_)
: type(type_), x(0), y(0), w(0), h(0), rgba_byte(0), rgba_half(0), buffer(0),
sample(0), num_samples(1),
shader_input(0), shader_output(0), shader_output_luma(0),
shader_eval_type(0), shader_filter(0), shader_x(0), shader_w(0)
{
last_update_time = time_dt();
}
int DeviceTask::get_subtask_count(int num, int max_size)
{
if(max_size != 0) {
int max_size_num;
if(type == SHADER) {
max_size_num = (shader_w + max_size - 1)/max_size;
}
else {
max_size = max(1, max_size/w);
max_size_num = (h + max_size - 1)/max_size;
}
num = max(max_size_num, num);
}
if(type == SHADER) {
num = min(shader_w, num);
}
else if(type == PATH_TRACE) {
}
else {
num = min(h, num);
}
return num;
}
void DeviceTask::split(list<DeviceTask>& tasks, int num, int max_size)
{
num = get_subtask_count(num, max_size);
if(type == SHADER) {
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 {
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, int pixel_samples)
{
if((type != PATH_TRACE) &&
(type != SHADER))
return;
if(update_progress_sample) {
if(pixel_samples == -1) {
pixel_samples = shader_w;
}
update_progress_sample(pixel_samples, rtile? rtile->sample : 0);
}
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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