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blender-archive/source/blender/compositor/nodes/COM_OutputFileNode.cpp
Lukas Tönne 005dabbd9a Fix T39799: Backdrop (compositor) ignores alpha.
This issue is because of a somewhat "special" behavior in old code, which got lost during rB09874df:

There was a variant of the `relinkConnections` function which would leave the socket completely unconnected. This is not a valid state really (given that each unconnected input must otherwise connected to a constant `Set` type node), but was used as a way to distinguish connected alpha/depth sockets in composite and viewer output nodes.
https://developer.blender.org/diffusion/B/browse/master/source/blender/compositor/intern/COM_InputSocket.cpp;28a829893c702918afc5ac1945a06eaefa611594$69

After the large cleanup patch ({D309}) every socket is now automatically connected to a constant, such that `getInputSocketReader` will never return a NULL pointer. This breaks the previous test method, which needs to be replaced by more explicit flags. Luckily this was done only for very few output nodes (Composite, Viewer, Output-File). These now use the regular SetValueOperation default in case "use alpha" is disabled, but set this to an explicit 1.0 value instead of mapping to the node socket.
2014-04-25 12:05:23 +02:00

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3.4 KiB
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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.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
* Lukas Tönne
*/
#include "COM_OutputFileNode.h"
#include "COM_OutputFileOperation.h"
#include "COM_ExecutionSystem.h"
#include "BLI_path_util.h"
OutputFileNode::OutputFileNode(bNode *editorNode) : Node(editorNode)
{
/* pass */
}
void OutputFileNode::convertToOperations(NodeConverter &converter, const CompositorContext &context) const
{
NodeImageMultiFile *storage = (NodeImageMultiFile *)this->getbNode()->storage;
if (!context.isRendering()) {
/* only output files when rendering a sequence -
* otherwise, it overwrites the output files just
* scrubbing through the timeline when the compositor updates.
*/
return;
}
if (storage->format.imtype == R_IMF_IMTYPE_MULTILAYER) {
/* single output operation for the multilayer file */
OutputOpenExrMultiLayerOperation *outputOperation = new OutputOpenExrMultiLayerOperation(
context.getRenderData(), context.getbNodeTree(), storage->base_path, storage->format.exr_codec);
converter.addOperation(outputOperation);
int num_inputs = getNumberOfInputSockets();
bool previewAdded = false;
for (int i = 0; i < num_inputs; ++i) {
NodeInput *input = getInputSocket(i);
NodeImageMultiFileSocket *sockdata = (NodeImageMultiFileSocket *)input->getbNodeSocket()->storage;
/* note: layer becomes an empty placeholder if the input is not linked */
outputOperation->add_layer(sockdata->layer, input->getDataType(), input->isLinked());
converter.mapInputSocket(input, outputOperation->getInputSocket(i));
if (!previewAdded) {
converter.addNodeInputPreview(input);
previewAdded = true;
}
}
}
else { /* single layer format */
int num_inputs = getNumberOfInputSockets();
bool previewAdded = false;
for (int i = 0; i < num_inputs; ++i) {
NodeInput *input = getInputSocket(i);
if (input->isLinked()) {
NodeImageMultiFileSocket *sockdata = (NodeImageMultiFileSocket *)input->getbNodeSocket()->storage;
ImageFormatData *format = (sockdata->use_node_format ? &storage->format : &sockdata->format);
char path[FILE_MAX];
/* combine file path for the input */
BLI_join_dirfile(path, FILE_MAX, storage->base_path, sockdata->path);
OutputSingleLayerOperation *outputOperation = new OutputSingleLayerOperation(
context.getRenderData(), context.getbNodeTree(), input->getDataType(), format, path,
context.getViewSettings(), context.getDisplaySettings());
converter.addOperation(outputOperation);
converter.mapInputSocket(input, outputOperation->getInputSocket(0));
if (!previewAdded) {
converter.addNodeInputPreview(input);
previewAdded = true;
}
}
}
}
}