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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
*/
#include "BKE_node.h"
#include "COM_GroupNode.h"
#include "COM_SocketProxyNode.h"
#include "COM_SetColorOperation.h"
#include "COM_ExecutionSystemHelper.h"
#include "COM_SetValueOperation.h"
#include "COM_SetVectorOperation.h"
#include "COM_SetColorOperation.h"
extern "C" {
#include "RNA_access.h"
}
GroupNode::GroupNode(bNode *editorNode) : Node(editorNode)
{
/* pass */
}
void GroupNode::convertToOperations(ExecutionSystem *graph, CompositorContext *context)
{
if (this->getbNode()->id == NULL) {
convertToOperations_invalid(graph, context);
}
}
static int find_group_input(GroupNode *gnode, const char *identifier, InputSocket **r_sock)
{
int index;
for (index = 0; index < gnode->getNumberOfInputSockets(); ++index) {
InputSocket *sock = gnode->getInputSocket(index);
if (STREQ(sock->getbNodeSocket()->identifier, identifier)) {
*r_sock = sock;
return index;
}
}
*r_sock = NULL;
return -1;
}
static int find_group_output(GroupNode *gnode, const char *identifier, OutputSocket **r_sock)
{
int index;
for (index = 0; index < gnode->getNumberOfOutputSockets(); ++index) {
OutputSocket *sock = gnode->getOutputSocket(index);
if (STREQ(sock->getbNodeSocket()->identifier, identifier)) {
*r_sock = sock;
return index;
}
}
*r_sock = NULL;
return -1;
}
void GroupNode::ungroup(ExecutionSystem &system)
{
bNode *bnode = this->getbNode();
bNodeTree *subtree = (bNodeTree *)bnode->id;
/* get the node list size _before_ adding proxy nodes, so they are available for linking */
int nodes_start = system.getNodes().size();
/* missing node group datablock can happen with library linking */
if (!subtree) {
/* this error case its handled in convertToOperations() so we don't get un-convertred sockets */
return;
}
const bool groupnodeBuffering = system.getContext().isGroupnodeBufferEnabled();
bool has_output = false;
/* create proxy nodes for group input/output nodes */
for (bNode *bionode = (bNode *)subtree->nodes.first; bionode; bionode = bionode->next) {
if (bionode->type == NODE_GROUP_INPUT) {
for (bNodeSocket *bsock = (bNodeSocket *)bionode->outputs.first; bsock; bsock = bsock->next) {
InputSocket *gsock;
int gsock_index = find_group_input(this, bsock->identifier, &gsock);
/* ignore virtual sockets */
if (gsock) {
SocketProxyNode *proxy = new SocketProxyNode(bionode, gsock->getbNodeSocket(), bsock, false);
ExecutionSystemHelper::addNode(system.getNodes(), proxy);
gsock->relinkConnectionsDuplicate(proxy->getInputSocket(0), gsock_index, &system);
}
}
}
if (bionode->type == NODE_GROUP_OUTPUT && (bionode->flag & NODE_DO_OUTPUT)) {
has_output = true;
for (bNodeSocket *bsock = (bNodeSocket *)bionode->inputs.first; bsock; bsock = bsock->next) {
OutputSocket *gsock;
find_group_output(this, bsock->identifier, &gsock);
/* ignore virtual sockets */
if (gsock) {
SocketProxyNode *proxy = new SocketProxyNode(bionode, bsock, gsock->getbNodeSocket(), groupnodeBuffering);
ExecutionSystemHelper::addNode(system.getNodes(), proxy);
gsock->relinkConnections(proxy->getOutputSocket(0));
}
}
}
}
/* in case no output node exists, add input value operations using defaults */
if (!has_output) {
for (int index = 0; index < getNumberOfOutputSockets(); ++index) {
OutputSocket *output = getOutputSocket(index);
addDefaultOutputOperation(system, output);
}
}
/* unlink the group node itself, input links have been duplicated */
for (int index = 0; index < this->getNumberOfInputSockets(); ++index) {
InputSocket *sock = this->getInputSocket(index);
sock->unlinkConnections(&system);
}
for (int index = 0; index < this->getNumberOfOutputSockets(); ++index) {
OutputSocket *sock = this->getOutputSocket(index);
sock->clearConnections();
}
ExecutionSystemHelper::addbNodeTree(system, nodes_start, subtree, this->getInstanceKey());
}
bNodeSocket *GroupNode::findInterfaceInput(InputSocket *socket)
{
bNode *bnode = this->getbNode();
bNodeTree *subtree = (bNodeTree *)bnode->id;
if (!subtree)
return NULL;
const char *identifier = socket->getbNodeSocket()->identifier;
for (bNodeSocket *iosock = (bNodeSocket *)subtree->inputs.first; iosock; iosock = iosock->next)
if (STREQ(iosock->identifier, identifier))
return iosock;
return NULL;
}
bNodeSocket *GroupNode::findInterfaceOutput(OutputSocket *socket)
{
bNode *bnode = this->getbNode();
bNodeTree *subtree = (bNodeTree *)bnode->id;
if (!subtree)
return NULL;
const char *identifier = socket->getbNodeSocket()->identifier;
for (bNodeSocket *iosock = (bNodeSocket *)subtree->outputs.first; iosock; iosock = iosock->next)
if (STREQ(iosock->identifier, identifier))
return iosock;
return NULL;
}
void GroupNode::addDefaultOutputOperation(ExecutionSystem &system, OutputSocket *outputsocket)
{
bNodeSocket *iosock = findInterfaceOutput(outputsocket);
if (!iosock)
return;
PointerRNA ptr;
RNA_pointer_create(&getbNodeTree()->id, &RNA_NodeSocket, iosock, &ptr);
NodeOperation *operation = NULL;
switch (iosock->typeinfo->type) {
case SOCK_FLOAT:
{
float value = RNA_float_get(&ptr, "default_value");
SetValueOperation *value_op = new SetValueOperation();
value_op->setValue(value);
operation = value_op;
break;
}
case SOCK_VECTOR:
{
float vector[3];
RNA_float_get_array(&ptr, "default_value", vector);
SetVectorOperation *vector_op = new SetVectorOperation();
vector_op->setVector(vector);
operation = vector_op;
break;
}
case SOCK_RGBA:
{
float color[4];
RNA_float_get_array(&ptr, "default_value", color);
SetColorOperation *color_op = new SetColorOperation();
color_op->setChannels(color);
operation = color_op;
break;
}
}
outputsocket->relinkConnections(operation->getOutputSocket());
system.addOperation(operation);
}
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