converted more mixed tab/space indentations to tabs. only whitespace changes.
[blender.git] / source / blender / nodes / intern / CMP_nodes / CMP_diffMatte.c
index 68a1bcd..2960532 100644 (file)
@@ -1,4 +1,4 @@
-/**
+/*
  * $Id$
  *
  * ***** BEGIN GPL LICENSE BLOCK *****
@@ -15,7 +15,7 @@
  *
  * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  *
  * The Original Code is Copyright (C) 2006 Blender Foundation.
  * All rights reserved.
  * ***** END GPL LICENSE BLOCK *****
  */
 
+/** \file blender/nodes/intern/CMP_nodes/CMP_diffMatte.c
+ *  \ingroup cmpnodes
+ */
+
+
 #include "../CMP_util.h"
 
 /* ******************* channel Difference Matte ********************************* */
@@ -42,73 +47,76 @@ static bNodeSocketType cmp_node_diff_matte_out[]={
        {-1,0,""}
 };
 
-/* note, keyvals is passed on from caller as stack array */
-/* might have been nicer as temp struct though... */
-static void do_diff_matte(bNode *node, float *colorbuf, float *imbuf1, float *imbuf2)
+static void do_diff_matte(bNode *node, float *outColor, float *inColor1, float *inColor2)
 {
        NodeChroma *c= (NodeChroma *)node->storage;
        float tolerence=c->t1;
-   float falloff=c->t2;
+       float falloff=c->t2;
        float difference;
-   float alpha;
-       
-   difference=fabs(imbuf2[0]-imbuf1[0])+
-               fabs(imbuf2[1]-imbuf1[1])+
-               fabs(imbuf2[2]-imbuf1[2]);
+       float alpha;
 
-   /*average together the distances*/
-   difference=difference/3.0;
+       difference= fabs(inColor2[0]-inColor1[0])+
+                          fabs(inColor2[1]-inColor1[1])+
+                          fabs(inColor2[2]-inColor1[2]);
 
-   VECCOPY(colorbuf, imbuf1);
+       /*average together the distances*/
+       difference=difference/3.0;
 
-   /*make 100% transparent*/
-       if(difference < tolerence){
-      colorbuf[3]=0.0;
+       VECCOPY(outColor, inColor1);
+
+       /*make 100% transparent*/
+       if(difference < tolerence) {
+               outColor[3]=0.0;
+       }
+       /*in the falloff region, make partially transparent */
+       else if(difference < falloff+tolerence) {
+               difference=difference-tolerence;
+               alpha=difference/falloff;
+               /*only change if more transparent than before */
+               if(alpha < inColor1[3]) {
+                       outColor[3]=alpha;
+               }
+               else { /* leave as before */
+                       outColor[3]=inColor1[3];
+               }
        }
-   /*in the falloff region, make partially transparent */
-   else if(difference < falloff+tolerence){
-      difference=difference-tolerence;
-      alpha=difference/falloff;
-      /*only change if more transparent than before */
-      if(alpha < imbuf1[3]) {      
-         colorbuf[3]=alpha;
-      }
-      else { /* leave as before */
-         colorbuf[3]=imbuf1[3];
-      }
-   }
        else {
                /*foreground object*/
-               colorbuf[3]= imbuf1[3];
+               outColor[3]= inColor1[3];
        }
 }
 
 static void node_composit_exec_diff_matte(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
 {
-       CompBuf *outbuf;
-       CompBuf *imbuf1;
-   CompBuf *imbuf2;
+       CompBuf *outbuf=0;
+       CompBuf *imbuf1=0;
+       CompBuf *imbuf2=0;
        NodeChroma *c;
-       
+
        /*is anything connected?*/
        if(out[0]->hasoutput==0 && out[1]->hasoutput==0) return;
+
        /*must have an image imput*/
        if(in[0]->data==NULL) return;
-   if(in[1]->data==NULL) return;
-       
+
+
        imbuf1=typecheck_compbuf(in[0]->data, CB_RGBA);
-   imbuf2=typecheck_compbuf(in[1]->data, CB_RGBA);
-       
+
+       /* if there's an image, use that, if not use the color */
+       if(in[1]->data) {
+               imbuf2=typecheck_compbuf(in[1]->data, CB_RGBA);
+       }
+
        c=node->storage;
        outbuf=dupalloc_compbuf(imbuf1);
-       
+
        /* note, processor gets a keyvals array passed on as buffer constant */
        composit2_pixel_processor(node, outbuf, imbuf1, in[0]->vec, imbuf2, in[1]->vec, do_diff_matte, CB_RGBA, CB_RGBA);
-       
+
        out[0]->data=outbuf;
        if(out[1]->hasoutput)
                out[1]->data=valbuf_from_rgbabuf(outbuf, CHAN_A);
-       generate_preview(node, outbuf);
+       generate_preview(data, node, outbuf);
 
        if(imbuf1!=in[0]->data)
                free_compbuf(imbuf1);
@@ -119,27 +127,25 @@ static void node_composit_exec_diff_matte(void *data, bNode *node, bNodeStack **
 
 static void node_composit_init_diff_matte(bNode *node)
 {
-   NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node chroma");
-   node->storage= c;
-   c->t1= 0.1f;
-   c->t2= 0.1f;
+       NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node chroma");
+       node->storage= c;
+       c->t1= 0.1f;
+       c->t2= 0.1f;
+}
+
+void register_node_type_cmp_diff_matte(ListBase *lb)
+{
+       static bNodeType ntype;
+
+       node_type_base(&ntype, CMP_NODE_DIFF_MATTE, "Difference Key", NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS,
+               cmp_node_diff_matte_in, cmp_node_diff_matte_out);
+       node_type_size(&ntype, 200, 80, 250);
+       node_type_init(&ntype, node_composit_init_diff_matte);
+       node_type_storage(&ntype, "NodeChroma", node_free_standard_storage, node_copy_standard_storage);
+       node_type_exec(&ntype, node_composit_exec_diff_matte);
+
+       nodeRegisterType(lb, &ntype);
 }
 
-bNodeType cmp_node_diff_matte={
-       /* *next,*prev */       NULL, NULL,
-       /* type code   */       CMP_NODE_DIFF_MATTE,
-       /* name        */       "Difference Key",
-       /* width+range */       200, 80, 250,
-       /* class+opts  */       NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS,
-       /* input sock  */       cmp_node_diff_matte_in,
-       /* output sock */       cmp_node_diff_matte_out,
-       /* storage     */       "NodeChroma",
-       /* execfunc    */       node_composit_exec_diff_matte,
-       /* butfunc     */       NULL,
-       /* initfunc    */       node_composit_init_diff_matte,
-       /* freestoragefunc    */        node_free_standard_storage,
-       /* copystoragefunc    */        node_copy_standard_storage,
-       /* id          */       NULL
-};