Added normalize compositing node.

1 files changed, 113 insertions, 0 deletions

diff --git a/source/blender/nodes/intern/CMP_nodes/CMP_normalize.c b/source/blender/nodes/intern/CMP_nodes/CMP_normalize.c
new file mode 100644
index 00000000000..4b6b8958fea
--- /dev/null
+++ b/source/blender/nodes/intern/CMP_nodes/CMP_normalize.c
@@ -0,0 +1,113 @@
+/**
+ * $Id: CMP_normalize.c,v 1.0 2007/03/24 06:57:29 scourage Exp $
+ *
+ * ***** 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"
+
+
+/* **************** NORMALIZE single channel, useful for Z buffer ******************** */
+static bNodeSocketType cmp_node_normalize_in[]= {
+	{   SOCK_VALUE, 1, "Value",         1.0f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
+	{   -1, 0, ""   }
+};
+static bNodeSocketType cmp_node_normalize_out[]= {
+	{   SOCK_VALUE, 0, "Value",         1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
+	{   -1, 0, ""   }
+};
+
+static void do_normalize(bNode *node, float *out, float *src, float *min, float *mult)
+{
+	float res;
+	res = (src[0] - min[0]) * mult[0];
+	if (res > 1.0f) {
+		out[0] = 1.0f;
+	}
+	else if (res < 0.0f) {
+		out[0] = 0.0f;
+	}
+	else {
+		out[0] = res;
+	}
+}
+
+#define BLENDER_ZMAX 10000.0f
+
+static void node_composit_exec_normalize(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
+{
+	/* stack order in: valbuf */
+	/* stack order out: valbuf */
+	if(out[0]->hasoutput==0) return;
+
+	/* input no image? then only value operation */
+	if(in[0]->data==NULL) {
+		QUATCOPY(out[0]->vec, in[0]->vec);
+	}
+	else {
+		float min = 1.0f+BLENDER_ZMAX;
+		float max = -1.0f-BLENDER_ZMAX;
+		float mult = 1.0f;
+		float *val;
+		/* make output size of input image */
+		CompBuf *cbuf= in[0]->data;
+		int tot= cbuf->x*cbuf->y;
+		CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */
+
+		for (val = cbuf->rect; tot; tot--, val++) {
+			if ((*val > max) && (*val < BLENDER_ZMAX)) {
+				max = *val;
+			}
+			if (*val < min) {
+				min = *val;
+			}
+		}
+		mult = 1.0f/(max-min);
+
+		printf("min %f max %f\n", min, max);
+
+		composit3_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, NULL, &min, NULL, &mult, do_normalize, CB_VAL, CB_VAL, CB_VAL);
+
+		out[0]->data= stackbuf;
+	}
+}
+
+bNodeType cmp_node_normalize= {
+	/* *next, *prev*/   NULL, NULL,
+	/* type code   */   CMP_NODE_NORMALIZE,
+	/* name        */   "Normalize",
+	/* width+range */   100, 60, 150,
+	/* class+opts  */   NODE_CLASS_OP_VECTOR, NODE_OPTIONS,
+	/* input sock  */   cmp_node_normalize_in,
+	/* output sock */   cmp_node_normalize_out,
+	/* storage     */   "TexMapping",
+	/* execfunc    */   node_composit_exec_normalize, 
+	/* butfunc     */   NULL, 
+	/* initfunc    */   NULL, 
+	/* freestoragefunc	*/ NULL, 
+	/* copystoragefunc	*/ NULL, 
+	/* id		*/	NULL
+};