5c760e4811
This will allow python or plugin defined nodes to work as well. (And fixes compile issues with MSVC in yesterdays commit for nodes) Code provided by Nathan L. Fixes in his code: - free_nodesystem() was called too late (after guarded alloc was closed) - free_nodesystem() was freeing nodes that were not malloced even - free_nodesystem was using free, not freeN :) - the typedefs needed to be malloced yes, to allow duplicate nodes like group but also for dynamic nodes.
126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2006 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "../CMP_util.h"
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/* **************** ALPHAOVER ******************** */
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static bNodeSocketType cmp_node_alphaover_in[]= {
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{ SOCK_VALUE, 1, "Fac", 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f},
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{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
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{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketType cmp_node_alphaover_out[]= {
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{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static void do_alphaover_premul(bNode *node, float *out, float *src, float *over, float *fac)
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{
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if(over[3]<=0.0f) {
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QUATCOPY(out, src);
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}
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else if(*fac==1.0f && over[3]>=1.0f) {
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QUATCOPY(out, over);
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}
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else {
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float mul= 1.0f - *fac*over[3];
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out[0]= (mul*src[0]) + *fac*over[0];
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out[1]= (mul*src[1]) + *fac*over[1];
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out[2]= (mul*src[2]) + *fac*over[2];
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out[3]= (mul*src[3]) + *fac*over[3];
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}
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}
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/* result will be still premul, but the over part is premulled */
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static void do_alphaover_key(bNode *node, float *out, float *src, float *over, float *fac)
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{
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if(over[3]<=0.0f) {
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QUATCOPY(out, src);
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}
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else if(*fac==1.0f && over[3]>=1.0f) {
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QUATCOPY(out, over);
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}
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else {
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float premul= fac[0]*over[3];
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float mul= 1.0f - premul;
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out[0]= (mul*src[0]) + premul*over[0];
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out[1]= (mul*src[1]) + premul*over[1];
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out[2]= (mul*src[2]) + premul*over[2];
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out[3]= (mul*src[3]) + fac[0]*over[3];
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}
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}
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static void node_composit_exec_alphaover(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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/* stack order in: col col */
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/* stack order out: col */
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if(out[0]->hasoutput==0)
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return;
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/* input no image? then only color operation */
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if(in[1]->data==NULL) {
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do_alphaover_premul(node, out[0]->vec, in[1]->vec, in[2]->vec, in[0]->vec);
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}
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else {
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/* make output size of input image */
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CompBuf *cbuf= in[1]->data;
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CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
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if(node->custom1)
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composit3_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[2]->data, in[2]->vec, in[0]->data, in[0]->vec, do_alphaover_key, CB_RGBA, CB_RGBA, CB_VAL);
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else
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composit3_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[2]->data, in[2]->vec, in[0]->data, in[0]->vec, do_alphaover_premul, CB_RGBA, CB_RGBA, CB_VAL);
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out[0]->data= stackbuf;
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}
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}
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bNodeType cmp_node_alphaover= {
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/* *next,*prev */ NULL, NULL,
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/* type code */ CMP_NODE_ALPHAOVER,
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/* name */ "AlphaOver",
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/* width+range */ 80, 40, 120,
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/* class+opts */ NODE_CLASS_OP_COLOR, NODE_OPTIONS,
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/* input sock */ cmp_node_alphaover_in,
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/* output sock */ cmp_node_alphaover_out,
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/* storage */ "",
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/* execfunc */ node_composit_exec_alphaover,
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/* butfunc */ NULL,
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/*initfunc */ NULL
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};
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