261 lines
7.3 KiB
C
261 lines
7.3 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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/* ******************* Channel Matte Node ********************************* */
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static bNodeSocketType cmp_node_channel_matte_in[]={
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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_channel_matte_out[]={
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{SOCK_RGBA,0,"Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
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{SOCK_VALUE,0,"Matte",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_normalized_rgba_to_ycca2(bNode *node, float *out, float *in)
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{
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/*normalize to the range 0.0 to 1.0) */
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rgb_to_ycc(in[0],in[1],in[2], &out[0], &out[1], &out[2]);
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out[0]=(out[0])/255.0;
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out[1]=(out[1])/255.0;
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out[2]=(out[2])/255.0;
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out[3]=in[3];
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}
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static void do_normalized_ycca_to_rgba2(bNode *node, float *out, float *in)
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{
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/*un-normalize the normalize from above */
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in[0]=in[0]*255.0;
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in[1]=in[1]*255.0;
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in[2]=in[2]*255.0;
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ycc_to_rgb(in[0],in[1],in[2], &out[0], &out[1], &out[2]);
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out[3]=in[3];
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}
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static void do_channel_matte(bNode *node, float *out, float *in)
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{
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NodeChroma *c=(NodeChroma *)node->storage;
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float alpha=0.0;
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/* Alpha=G-MAX(R, B) */
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switch(node->custom2)
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{
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case 1:
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{
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alpha=in[0]-MAX2(in[1],in[2]);
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break;
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}
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case 2:
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{
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alpha=in[1]-MAX2(in[0],in[2]);
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break;
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}
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case 3:
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{
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alpha=in[2]-MAX2(in[0],in[1]);
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break;
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}
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default:
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break;
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}
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/*flip because 0.0 is transparent, not 1.0*/
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alpha=1-alpha;
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/* test range*/
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if(alpha>c->t1) {
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alpha=in[3]; /*whatever it was prior */
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}
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else if(alpha<c->t2){
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alpha=0.0;
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}
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else {/*blend */
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alpha=(alpha-c->t2)/(c->t1-c->t2);
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}
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/* don't make something that was more transparent less transparent */
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if (alpha<in[3]) {
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out[3]=alpha;
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}
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else {
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out[3]=in[3];
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}
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}
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static void node_composit_exec_channel_matte(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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CompBuf *cbuf;
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CompBuf *outbuf;
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if(in[0]->hasinput==0) return;
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if(in[0]->data==NULL) return;
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if(out[0]->hasoutput==0 && out[1]->hasoutput==0) return;
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cbuf=typecheck_compbuf(in[0]->data, CB_RGBA);
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outbuf=dupalloc_compbuf(cbuf);
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/*convert to colorspace*/
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switch(node->custom1) {
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case 1: /*RGB */
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break;
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case 2: /*HSV*/
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composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_rgba_to_hsva, CB_RGBA);
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break;
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case 3: /*YUV*/
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composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_rgba_to_yuva, CB_RGBA);
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break;
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case 4: /*YCC*/
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composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_normalized_rgba_to_ycca2, CB_RGBA);
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break;
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default:
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break;
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}
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/*use the selected channel information to do the key */
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composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_channel_matte, CB_RGBA);
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/*convert back to RGB colorspace in place*/
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switch(node->custom1) {
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case 1: /*RGB*/
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break;
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case 2: /*HSV*/
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composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_hsva_to_rgba, CB_RGBA);
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break;
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case 3: /*YUV*/
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composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_yuva_to_rgba, CB_RGBA);
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break;
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case 4: /*YCC*/
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composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_normalized_ycca_to_rgba2, CB_RGBA);
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break;
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default:
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break;
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}
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generate_preview(node, outbuf);
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out[0]->data=outbuf;
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if(out[1]->hasoutput)
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out[1]->data=valbuf_from_rgbabuf(outbuf, CHAN_A);
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if(cbuf!=in[0]->data)
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free_compbuf(cbuf);
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}
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static int node_composit_buts_channel_matte(uiBlock *block, bNodeTree *ntree, bNode *node, rctf *butr)
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{
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if(block) {
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short sx= (butr->xmax-butr->xmin)/4;
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short cx= (butr->xmax-butr->xmin)/3;
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NodeChroma *c=node->storage;
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char *c1, *c2, *c3;
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/*color space selectors*/
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uiBlockBeginAlign(block);
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uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"RGB",
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butr->xmin,butr->ymin+60,sx,20,&node->custom1,1,1, 0, 0, "RGB Color Space");
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uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"HSV",
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butr->xmin+sx,butr->ymin+60,sx,20,&node->custom1,1,2, 0, 0, "HSV Color Space");
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uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"YUV",
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butr->xmin+2*sx,butr->ymin+60,sx,20,&node->custom1,1,3, 0, 0, "YUV Color Space");
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uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"YCC",
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butr->xmin+3*sx,butr->ymin+60,sx,20,&node->custom1,1,4, 0, 0, "YCbCr Color Space");
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if (node->custom1==1) {
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c1="R"; c2="G"; c3="B";
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}
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else if(node->custom1==2){
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c1="H"; c2="S"; c3="V";
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}
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else if(node->custom1==3){
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c1="Y"; c2="U"; c3="V";
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}
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else { // if(node->custom1==4){
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c1="Y"; c2="Cb"; c3="Cr";
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}
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/*channel selector */
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uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c1,
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butr->xmin,butr->ymin+40,cx,20,&node->custom2,1, 1, 0, 0, "Channel 1");
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uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c2,
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butr->xmin+cx,butr->ymin+40,cx,20,&node->custom2,1, 2, 0, 0, "Channel 2");
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uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c3,
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butr->xmin+cx+cx,butr->ymin+40,cx,20,&node->custom2, 1, 3, 0, 0, "Channel 3");
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/*tolerance sliders */
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uiDefButF(block, NUMSLI, B_NODE_EXEC+node->nr, "High ",
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butr->xmin, butr->ymin+20.0, butr->xmax-butr->xmin, 20,
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&c->t1, 0.0f, 1.0f, 100, 0, "Values higher than this setting are 100% opaque");
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uiDefButF(block, NUMSLI, B_NODE_EXEC+node->nr, "Low ",
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butr->xmin, butr->ymin, butr->xmax-butr->xmin, 20,
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&c->t2, 0.0f, 1.0f, 100, 0, "Values lower than this setting are 100% keyed");
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uiBlockEndAlign(block);
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/*keep t2 (low) less than t1 (high) */
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if(c->t2 > c->t1) {
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c->t2=c->t1;
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}
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}
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return 80;
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}
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static void node_composit_init_channel_matte(bNode *node)
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{
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NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node chroma");
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node->storage=c;
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c->t1= 0.0f;
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c->t2= 0.0f;
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c->t3= 0.0f;
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c->fsize= 0.0f;
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c->fstrength= 0.0f;
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node->custom1= 1; /* RGB channel */
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node->custom2= 2; /* Green Channel */
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}
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bNodeType cmp_node_channel_matte={
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/* type code */ CMP_NODE_CHANNEL_MATTE,
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/* name */ "Channel Key",
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/* width+range */ 200, 80, 250,
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/* class+opts */ NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS,
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/* input sock */ cmp_node_channel_matte_in,
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/* output sock */ cmp_node_channel_matte_out,
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/* storage */ "NodeChroma",
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/* execfunc */ node_composit_exec_channel_matte,
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/* butfunc */ node_composit_buts_channel_matte,
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node_composit_init_channel_matte
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};
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