forked from bartvdbraak/blender
3918c8b9a5
This makes it possible to move some parts of evaluation from host to the device and hopefully reduce memory usage by avoid having full RGBA buffer on the host. Reviewers: juicyfruit, lukasstockner97, brecht Reviewed By: lukasstockner97, brecht Differential Revision: https://developer.blender.org/D1702
124 lines
2.5 KiB
C++
124 lines
2.5 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "device_task.h"
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#include "util_algorithm.h"
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#include "util_time.h"
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CCL_NAMESPACE_BEGIN
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/* Device Task */
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DeviceTask::DeviceTask(Type type_)
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: type(type_), x(0), y(0), w(0), h(0), rgba_byte(0), rgba_half(0), buffer(0),
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sample(0), num_samples(1),
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shader_input(0), shader_output(0), shader_output_luma(0),
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shader_eval_type(0), shader_x(0), shader_w(0)
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{
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last_update_time = time_dt();
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}
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int DeviceTask::get_subtask_count(int num, int max_size)
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{
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if(max_size != 0) {
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int max_size_num;
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if(type == SHADER) {
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max_size_num = (shader_w + max_size - 1)/max_size;
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}
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else {
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max_size = max(1, max_size/w);
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max_size_num = (h + max_size - 1)/max_size;
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}
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num = max(max_size_num, num);
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}
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if(type == SHADER) {
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num = min(shader_w, num);
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}
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else if(type == PATH_TRACE) {
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}
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else {
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num = min(h, num);
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}
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return num;
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}
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void DeviceTask::split(list<DeviceTask>& tasks, int num, int max_size)
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{
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num = get_subtask_count(num, max_size);
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if(type == SHADER) {
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for(int i = 0; i < num; i++) {
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int tx = shader_x + (shader_w/num)*i;
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int tw = (i == num-1)? shader_w - i*(shader_w/num): shader_w/num;
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DeviceTask task = *this;
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task.shader_x = tx;
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task.shader_w = tw;
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tasks.push_back(task);
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}
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}
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else if(type == PATH_TRACE) {
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for(int i = 0; i < num; i++)
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tasks.push_back(*this);
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}
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else {
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for(int i = 0; i < num; i++) {
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int ty = y + (h/num)*i;
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int th = (i == num-1)? h - i*(h/num): h/num;
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DeviceTask task = *this;
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task.y = ty;
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task.h = th;
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tasks.push_back(task);
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}
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}
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}
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void DeviceTask::update_progress(RenderTile *rtile)
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{
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if((type != PATH_TRACE) &&
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(type != SHADER))
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return;
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if(update_progress_sample)
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update_progress_sample();
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if(update_tile_sample) {
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double current_time = time_dt();
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if(current_time - last_update_time >= 1.0) {
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update_tile_sample(*rtile);
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last_update_time = current_time;
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}
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}
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}
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CCL_NAMESPACE_END
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