[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [12429] trunk/blender/source/blender: Crop Compositing Node:

Juho Vepsalainen bebraw at gmail.com
Mon Oct 29 15:37:19 CET 2007


Revision: 12429
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=12429
Author:   bebraw
Date:     2007-10-29 15:37:19 +0100 (Mon, 29 Oct 2007)

Log Message:
-----------
Crop Compositing Node:

This commit adds a new node, crop, to the compositor. This node can be used to
crop input image. It has two modes of operation. It can either crop image
size (Crop Image Size option) or crop while retaining original size of the
image. This latter mode can be used to preview the crop.

Use X1, Y1, X2, Y2 controls to manage the area to be cropped.

Note that I added a check for image preview min and max values to node_update.
This is because it could give inappropriate values in certain cases when
Crop Image Size option was toggled (values such as x1=0, y1=0, x2=60, y2=0 would
result in eternal loop due to bad min and max (min bigger than max!)). The check 
makes sure that min and max values are always valid.

Modified Paths:
--------------
    trunk/blender/source/blender/blenkernel/BKE_node.h
    trunk/blender/source/blender/blenkernel/intern/node.c
    trunk/blender/source/blender/makesdna/DNA_node_types.h
    trunk/blender/source/blender/nodes/CMP_node.h
    trunk/blender/source/blender/src/drawnode.c

Added Paths:
-----------
    trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_crop.c

Modified: trunk/blender/source/blender/blenkernel/BKE_node.h
===================================================================
--- trunk/blender/source/blender/blenkernel/BKE_node.h	2007-10-29 13:11:42 UTC (rev 12428)
+++ trunk/blender/source/blender/blenkernel/BKE_node.h	2007-10-29 14:37:19 UTC (rev 12429)
@@ -302,6 +302,7 @@
 #define CMP_NODE_GAMMA		250
 #define CMP_NODE_INVERT		251
 #define CMP_NODE_NORMALIZE      252
+#define CMP_NODE_CROP		253
 
 #define CMP_NODE_GLARE		301
 #define CMP_NODE_TONEMAP	302

Modified: trunk/blender/source/blender/blenkernel/intern/node.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/node.c	2007-10-29 13:11:42 UTC (rev 12428)
+++ trunk/blender/source/blender/blenkernel/intern/node.c	2007-10-29 14:37:19 UTC (rev 12429)
@@ -2363,6 +2363,7 @@
 	nodeRegisterType(ntypelist, &cmp_node_rotate);
 	nodeRegisterType(ntypelist, &cmp_node_scale);
 	nodeRegisterType(ntypelist, &cmp_node_flip);
+	nodeRegisterType(ntypelist, &cmp_node_crop);
 	nodeRegisterType(ntypelist, &cmp_node_displace);
 	nodeRegisterType(ntypelist, &cmp_node_mapuv);
 

Modified: trunk/blender/source/blender/makesdna/DNA_node_types.h
===================================================================
--- trunk/blender/source/blender/makesdna/DNA_node_types.h	2007-10-29 13:11:42 UTC (rev 12428)
+++ trunk/blender/source/blender/makesdna/DNA_node_types.h	2007-10-29 14:37:19 UTC (rev 12429)
@@ -214,6 +214,10 @@
 	float key[4];
 } NodeChroma;
 
+typedef struct NodeTwoXYs {
+	short x1, x2, y1, y2;
+} NodeTwoXYs;
+
 typedef struct NodeGeometry {
 	char uvname[32];
 	char colname[32];

Modified: trunk/blender/source/blender/nodes/CMP_node.h
===================================================================
--- trunk/blender/source/blender/nodes/CMP_node.h	2007-10-29 13:11:42 UTC (rev 12428)
+++ trunk/blender/source/blender/nodes/CMP_node.h	2007-10-29 14:37:19 UTC (rev 12429)
@@ -94,6 +94,7 @@
 extern bNodeType cmp_node_rotate;
 extern bNodeType cmp_node_scale;
 extern bNodeType cmp_node_flip;
+extern bNodeType cmp_node_crop;
 extern bNodeType cmp_node_displace;
 extern bNodeType cmp_node_mapuv;
 

Added: trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_crop.c
===================================================================
--- trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_crop.c	                        (rev 0)
+++ trunk/blender/source/blender/nodes/intern/CMP_nodes/CMP_crop.c	2007-10-29 14:37:19 UTC (rev 12429)
@@ -0,0 +1,119 @@
+/**
+ *
+ *
+ * ***** 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): Juho Vepsäläinen
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "../CMP_util.h"
+
+/* **************** Crop  ******************** */
+
+static bNodeSocketType cmp_node_crop_in[]= {
+	{	SOCK_RGBA, 1, "Image",			0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
+	{	-1, 0, ""	}
+};
+static bNodeSocketType cmp_node_crop_out[]= {
+	{	SOCK_RGBA, 0, "Image",			0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
+	{	-1, 0, ""	}
+};
+
+static void node_composit_exec_crop(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
+{
+	if(in[0]->data) {
+		NodeTwoXYs *ntxy= node->storage;
+		CompBuf *cbuf= in[0]->data;
+		CompBuf *stackbuf;
+		int x, y;
+		float *srcfp, *outfp;
+		rcti outputrect;
+
+		/* check input image size */
+		if(cbuf->x <= ntxy->x1 + 1)
+			ntxy->x1= cbuf->x - 1;
+
+		if(cbuf->y <= ntxy->y1 + 1)
+			ntxy->y1= cbuf->y - 1;
+
+		if(cbuf->x <= ntxy->x2 + 1)
+			ntxy->x2= cbuf->x - 1;
+
+		if(cbuf->y <= ntxy->y2 + 1)
+			ntxy->y2= cbuf->y - 1;
+
+		/* figure out the minimums and maximums */
+		outputrect.xmax=MAX2(ntxy->x1, ntxy->x2) + 1;
+		outputrect.xmin=MIN2(ntxy->x1, ntxy->x2);
+		outputrect.ymax=MAX2(ntxy->y1, ntxy->y2) + 1;
+		outputrect.ymin=MIN2(ntxy->y1, ntxy->y2);
+
+		if(node->custom1) {
+			/* this option crops the image size too  */	
+			stackbuf= get_cropped_compbuf(&outputrect, cbuf->rect, cbuf->x, cbuf->y, cbuf->type);
+		}
+		else {
+			/* this option won't crop the size of the image as well  */
+			/* allocate memory for the output image            */
+			stackbuf = alloc_compbuf(cbuf->x, cbuf->y, cbuf->type, 1);
+
+			/* select the cropped part of the image and set it to the output */
+			for(y=outputrect.ymin; y<outputrect.ymax; y++){
+				srcfp= cbuf->rect     + (y * cbuf->x     + outputrect.xmin) * cbuf->type;
+				outfp= stackbuf->rect + (y * stackbuf->x + outputrect.xmin) * stackbuf->type;
+				for(x=outputrect.xmin; x<outputrect.xmax; x++, outfp+= stackbuf->type, srcfp+= cbuf->type)
+                			memcpy(outfp, srcfp, sizeof(float)*stackbuf->type);
+			}
+		}
+
+		out[0]->data= stackbuf;
+	}
+}
+
+static void node_composit_init_crop(bNode* node)
+{
+   NodeTwoXYs *nxy= MEM_callocN(sizeof(NodeTwoXYs), "node xy data");
+   node->storage= nxy;
+   nxy->x1= 0;
+   nxy->x2= 0;
+   nxy->y1= 0;
+   nxy->y2= 0;
+}
+
+bNodeType cmp_node_crop= {
+	/* *next,*prev */	NULL, NULL,
+	/* type code   */	CMP_NODE_CROP,
+	/* name        */	"Crop",
+	/* width+range */	140, 100, 320,
+	/* class+opts  */	NODE_CLASS_DISTORT, NODE_OPTIONS,
+	/* input sock  */	cmp_node_crop_in,
+	/* output sock */	cmp_node_crop_out,
+	/* storage     */	"NodeTwoXYs",
+	/* execfunc    */	node_composit_exec_crop,
+	/* butfunc     */	NULL,
+	/* initfunc    */	node_composit_init_crop,
+	/* freestoragefunc    */	node_free_standard_storage,
+	/* copystoragefunc    */	node_copy_standard_storage,
+	/* id          */	NULL
+};

Modified: trunk/blender/source/blender/src/drawnode.c
===================================================================
--- trunk/blender/source/blender/src/drawnode.c	2007-10-29 13:11:42 UTC (rev 12428)
+++ trunk/blender/source/blender/src/drawnode.c	2007-10-29 14:37:19 UTC (rev 12429)
@@ -1330,6 +1330,50 @@
 	return 20;	
 }
 
+static int node_composit_buts_crop(uiBlock *block, bNodeTree *ntree, bNode *node, rctf *butr)
+{
+	if(block) {
+		NodeTwoXYs *ntxy= node->storage;
+		uiBut *bt;
+		char elementheight = 19;
+		short dx= (butr->xmax-butr->xmin)/2;
+		short dy= butr->ymax - elementheight;
+		short xymin= 0, xymax= 10000;
+
+		uiBlockBeginAlign(block);
+
+		/* crop image size toggle */
+		uiDefButS(block, TOG, B_NODE_EXEC+node->nr, "Crop Image Size",
+				  butr->xmin, dy, dx*2, elementheight, 
+				  &node->custom1, 0, 0, 0, 0, "Crop the size of the input image.");
+
+		dy-=elementheight;
+
+		/* x1 */
+		bt=uiDefButS(block, NUM, B_NODE_EXEC+node->nr, "X1:",
+					 butr->xmin, dy, dx, elementheight,
+					 &ntxy->x1, xymin, xymax, 0, 0, "");
+		/* y1 */
+		bt=uiDefButS(block, NUM, B_NODE_EXEC+node->nr, "Y1:",
+					 butr->xmin+dx, dy, dx, elementheight,
+					 &ntxy->y1, xymin, xymax, 0, 0, "");
+
+		dy-=elementheight;
+
+		/* x2 */
+		bt=uiDefButS(block, NUM, B_NODE_EXEC+node->nr, "X2:",
+					 butr->xmin, dy, dx, elementheight,
+					 &ntxy->x2, xymin, xymax, 0, 0, "");
+		/* y2 */
+		bt=uiDefButS(block, NUM, B_NODE_EXEC+node->nr, "Y2:",
+					 butr->xmin+dx, dy, dx, elementheight,
+					 &ntxy->y2, xymin, xymax, 0, 0, "");
+
+		uiBlockEndAlign(block);
+	}
+	return 60;
+}
+
 static int node_composit_buts_splitviewer(uiBlock *block, bNodeTree *ntree, bNode *node, rctf *butr)
 {
 	if(block) {	
@@ -1758,6 +1802,9 @@
 		case CMP_NODE_VALTORGB:
 			ntype->butfunc= node_buts_valtorgb;
 			break;
+		case CMP_NODE_CROP:
+			ntype->butfunc= node_composit_buts_crop;
+ 			break;
 		case CMP_NODE_BLUR:
 			ntype->butfunc= node_composit_buts_blur;
 			break;
@@ -2132,8 +2179,12 @@
 				node->prvr.xmin+= 0.5*dx;
 				node->prvr.xmax-= 0.5*dx;
 			}
-			
+
 			dy= node->prvr.ymin - NODE_DYS/2;
+
+			/* make sure that maximums are bigger or equal to minimums */
+			if(node->prvr.xmax < node->prvr.xmin) SWAP(float, node->prvr.xmax, node->prvr.xmin);
+			if(node->prvr.ymax < node->prvr.ymin) SWAP(float, node->prvr.ymax, node->prvr.ymin);
 		}
 		else {
 			float oldh= node->prvr.ymax - node->prvr.ymin;
@@ -2145,7 +2196,7 @@
 			dy= node->prvr.ymin - NODE_DYS/2;
 		}
 	}
-	
+
 	/* XXX ugly hack, typeinfo for group is generated */
 	if(node->type == NODE_GROUP)
 		node->typeinfo->butfunc= node_buts_group;





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