Initial commit. Not in build system so shouldn't interfere with anything at this point. Will commit modified versions of existing files once build system is tested.

1 files changed, 260 insertions, 0 deletions

diff --git a/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c b/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c
new file mode 100644
index 00000000000..4f74f31f906
--- /dev/null
+++ b/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c
@@ -0,0 +1,260 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2006 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "../CMP_util.h"
+
+
+/* ******************* Channel Matte Node ********************************* */
+static bNodeSocketType cmp_node_channel_matte_in[]={
+	{SOCK_RGBA,1,"Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
+	{-1,0,""}
+};
+
+static bNodeSocketType cmp_node_channel_matte_out[]={
+	{SOCK_RGBA,0,"Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
+	{SOCK_VALUE,0,"Matte",0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
+	{-1,0,""}
+};
+
+static void do_normalized_rgba_to_ycca2(bNode *node, float *out, float *in)
+{
+	/*normalize to the range 0.0 to 1.0) */
+	rgb_to_ycc(in[0],in[1],in[2], &out[0], &out[1], &out[2]);
+	out[0]=(out[0])/255.0;
+	out[1]=(out[1])/255.0;
+	out[2]=(out[2])/255.0;
+	out[3]=in[3];
+}
+
+static void do_normalized_ycca_to_rgba2(bNode *node, float *out, float *in)
+{
+	/*un-normalize the normalize from above */
+	in[0]=in[0]*255.0;
+	in[1]=in[1]*255.0;
+	in[2]=in[2]*255.0;
+	ycc_to_rgb(in[0],in[1],in[2], &out[0], &out[1], &out[2]);
+	out[3]=in[3];
+}
+
+
+static void do_channel_matte(bNode *node, float *out, float *in)
+{
+	NodeChroma *c=(NodeChroma *)node->storage;
+	float alpha=0.0;
+	
+	/* Alpha=G-MAX(R, B) */
+	
+	switch(node->custom2)
+	{
+	case 1:
+		{
+			alpha=in[0]-MAX2(in[1],in[2]);
+			break;
+		}
+	case 2:
+		{
+			alpha=in[1]-MAX2(in[0],in[2]);
+			break;
+		}
+	case 3:
+		{
+			alpha=in[2]-MAX2(in[0],in[1]);
+			break;
+		}
+	default:
+		break;
+	}
+	
+	/*flip because 0.0 is transparent, not 1.0*/
+	alpha=1-alpha;
+	
+	/* test range*/
+	if(alpha>c->t1) {
+		alpha=in[3]; /*whatever it was prior */
+	}
+	else if(alpha<c->t2){
+		alpha=0.0;
+	}
+	else {/*blend */
+		alpha=(alpha-c->t2)/(c->t1-c->t2);
+	}
+
+	
+	/* don't make something that was more transparent less transparent */
+	if (alpha<in[3]) {
+		out[3]=alpha;
+	}
+	else {
+		out[3]=in[3];
+	}
+
+}
+
+static void node_composit_exec_channel_matte(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
+{
+	CompBuf *cbuf;
+	CompBuf *outbuf;
+	
+	if(in[0]->hasinput==0)  return;
+	if(in[0]->data==NULL) return;
+	if(out[0]->hasoutput==0 && out[1]->hasoutput==0) return;
+	
+	cbuf=typecheck_compbuf(in[0]->data, CB_RGBA);
+	
+	outbuf=dupalloc_compbuf(cbuf);
+	
+	/*convert to colorspace*/
+	switch(node->custom1) {
+	case 1: /*RGB */
+		break;
+	case 2: /*HSV*/
+		composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_rgba_to_hsva, CB_RGBA);
+		break;
+	case 3: /*YUV*/
+		composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_rgba_to_yuva, CB_RGBA);
+		break;
+	case 4: /*YCC*/
+		composit1_pixel_processor(node, outbuf, cbuf, in[1]->vec, do_normalized_rgba_to_ycca2, CB_RGBA);
+		break;
+	default:
+		break;
+	}
+
+	/*use the selected channel information to do the key */
+	composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_channel_matte, CB_RGBA);
+
+	/*convert back to RGB colorspace in place*/
+	switch(node->custom1) {
+	case 1: /*RGB*/
+		break;
+	case 2: /*HSV*/
+		composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_hsva_to_rgba, CB_RGBA);
+		break;
+	case 3: /*YUV*/
+		composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_yuva_to_rgba, CB_RGBA);
+		break;
+	case 4: /*YCC*/
+		composit1_pixel_processor(node, outbuf, outbuf, in[1]->vec, do_normalized_ycca_to_rgba2, CB_RGBA);
+		break;
+	default:
+		break;
+	}
+
+	generate_preview(node, outbuf);
+	out[0]->data=outbuf;
+	if(out[1]->hasoutput)
+		out[1]->data=valbuf_from_rgbabuf(outbuf, CHAN_A);
+	
+	if(cbuf!=in[0]->data)
+		free_compbuf(cbuf);
+
+}
+
+static int node_composit_buts_channel_matte(uiBlock *block, bNodeTree *ntree, bNode *node, rctf *butr)
+{
+   if(block) {
+      short sx= (butr->xmax-butr->xmin)/4;
+      short cx= (butr->xmax-butr->xmin)/3;
+      NodeChroma *c=node->storage;
+      char *c1, *c2, *c3;
+
+      /*color space selectors*/
+      uiBlockBeginAlign(block);
+      uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"RGB",
+         butr->xmin,butr->ymin+60,sx,20,&node->custom1,1,1, 0, 0, "RGB Color Space");
+      uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"HSV",
+         butr->xmin+sx,butr->ymin+60,sx,20,&node->custom1,1,2, 0, 0, "HSV Color Space");
+      uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"YUV",
+         butr->xmin+2*sx,butr->ymin+60,sx,20,&node->custom1,1,3, 0, 0, "YUV Color Space");
+      uiDefButS(block, ROW,B_NODE_EXEC+node->nr,"YCC",
+         butr->xmin+3*sx,butr->ymin+60,sx,20,&node->custom1,1,4, 0, 0, "YCbCr Color Space");
+
+      if (node->custom1==1) {
+         c1="R"; c2="G"; c3="B";
+      }
+      else if(node->custom1==2){
+         c1="H"; c2="S"; c3="V";
+      }
+      else if(node->custom1==3){
+         c1="Y"; c2="U"; c3="V";
+      }
+      else { // if(node->custom1==4){
+         c1="Y"; c2="Cb"; c3="Cr";
+      }
+
+      /*channel selector */
+      uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c1,
+         butr->xmin,butr->ymin+40,cx,20,&node->custom2,1, 1, 0, 0, "Channel 1");
+      uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c2,
+         butr->xmin+cx,butr->ymin+40,cx,20,&node->custom2,1, 2, 0, 0, "Channel 2");
+      uiDefButS(block, ROW, B_NODE_EXEC+node->nr, c3,
+         butr->xmin+cx+cx,butr->ymin+40,cx,20,&node->custom2, 1, 3, 0, 0, "Channel 3");
+
+      /*tolerance sliders */
+      uiDefButF(block, NUMSLI, B_NODE_EXEC+node->nr, "High ", 
+         butr->xmin, butr->ymin+20.0, butr->xmax-butr->xmin, 20,
+         &c->t1, 0.0f, 1.0f, 100, 0, "Values higher than this setting are 100% opaque");
+      uiDefButF(block, NUMSLI, B_NODE_EXEC+node->nr, "Low ", 
+         butr->xmin, butr->ymin, butr->xmax-butr->xmin, 20,
+         &c->t2, 0.0f, 1.0f, 100, 0, "Values lower than this setting are 100% keyed");
+      uiBlockEndAlign(block);
+
+      /*keep t2 (low) less than t1 (high) */
+      if(c->t2 > c->t1) {
+         c->t2=c->t1;
+      }
+   }
+   return 80;
+}
+
+static void node_composit_init_channel_matte(bNode *node)
+{
+   NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node chroma");
+   node->storage=c;
+   c->t1= 0.0f;
+   c->t2= 0.0f;
+   c->t3= 0.0f;
+   c->fsize= 0.0f;
+   c->fstrength= 0.0f;
+   node->custom1= 1; /* RGB channel */
+   node->custom2= 2; /* Green Channel */
+}
+
+bNodeType cmp_node_channel_matte={
+   /* type code   */       CMP_NODE_CHANNEL_MATTE,
+   /* name        */       "Channel Key",
+   /* width+range */       200, 80, 250,
+   /* class+opts  */       NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS,
+   /* input sock  */       cmp_node_channel_matte_in,
+   /* output sock */       cmp_node_channel_matte_out,
+   /* storage     */       "NodeChroma",
+   /* execfunc    */       node_composit_exec_channel_matte,
+   /* butfunc     */       node_composit_buts_channel_matte,
+                           node_composit_init_channel_matte
+};