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/*
* Copyright 2021 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 "blender/output_driver.h"
CCL_NAMESPACE_BEGIN
BlenderOutputDriver::BlenderOutputDriver(BL::RenderEngine &b_engine) : b_engine_(b_engine)
{
}
BlenderOutputDriver::~BlenderOutputDriver()
{
}
bool BlenderOutputDriver::read_render_tile(const Tile &tile)
{
/* Get render result. */
BL::RenderResult b_rr = b_engine_.begin_result(tile.offset.x,
tile.offset.y,
tile.size.x,
tile.size.y,
tile.layer.c_str(),
tile.view.c_str());
/* Can happen if the intersected rectangle gives 0 width or height. */
if (b_rr.ptr.data == NULL) {
return false;
}
BL::RenderResult::layers_iterator b_single_rlay;
b_rr.layers.begin(b_single_rlay);
/* layer will be missing if it was disabled in the UI */
if (b_single_rlay == b_rr.layers.end()) {
return false;
}
BL::RenderLayer b_rlay = *b_single_rlay;
vector<float> pixels(tile.size.x * tile.size.y * 4);
/* Copy each pass.
* TODO:copy only the required ones for better performance? */
for (BL::RenderPass &b_pass : b_rlay.passes) {
tile.set_pass_pixels(b_pass.name(), b_pass.channels(), (float *)b_pass.rect());
}
b_engine_.end_result(b_rr, false, false, false);
return true;
}
bool BlenderOutputDriver::update_render_tile(const Tile &tile)
{
/* Use final write for preview renders, otherwise render result wouldn't be be updated
* quickly on Blender side. For all other cases we use the display driver. */
if (b_engine_.is_preview()) {
write_render_tile(tile);
return true;
}
/* Don't highlight full-frame tile. */
if (!(tile.size == tile.full_size)) {
b_engine_.tile_highlight_clear_all();
b_engine_.tile_highlight_set(tile.offset.x, tile.offset.y, tile.size.x, tile.size.y, true);
}
return false;
}
void BlenderOutputDriver::write_render_tile(const Tile &tile)
{
b_engine_.tile_highlight_clear_all();
/* Get render result. */
BL::RenderResult b_rr = b_engine_.begin_result(tile.offset.x,
tile.offset.y,
tile.size.x,
tile.size.y,
tile.layer.c_str(),
tile.view.c_str());
/* Can happen if the intersected rectangle gives 0 width or height. */
if (b_rr.ptr.data == NULL) {
return;
}
BL::RenderResult::layers_iterator b_single_rlay;
b_rr.layers.begin(b_single_rlay);
/* Layer will be missing if it was disabled in the UI. */
if (b_single_rlay == b_rr.layers.end()) {
return;
}
BL::RenderLayer b_rlay = *b_single_rlay;
vector<float> pixels(tile.size.x * tile.size.y * 4);
/* Copy each pass. */
for (BL::RenderPass &b_pass : b_rlay.passes) {
if (!tile.get_pass_pixels(b_pass.name(), b_pass.channels(), &pixels[0])) {
memset(&pixels[0], 0, pixels.size() * sizeof(float));
}
b_pass.rect(&pixels[0]);
}
b_engine_.end_result(b_rr, true, false, true);
}
CCL_NAMESPACE_END
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