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/**
* $Id$
*
* ***** 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"
/* **************** Scale ******************** */
#define CMP_SCALE_MAX 12000
static bNodeSocketType cmp_node_scale_in[]= {
{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{ SOCK_VALUE, 1, "X", 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX},
{ SOCK_VALUE, 1, "Y", 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX},
{ -1, 0, "" }
};
static bNodeSocketType cmp_node_scale_out[]= {
{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ -1, 0, "" }
};
/* only supports RGBA nodes now */
/* node->custom1 stores if input values are absolute or relative scale */
static void node_composit_exec_scale(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
if(out[0]->hasoutput==0)
return;
if(in[0]->data) {
RenderData *rd= data;
CompBuf *stackbuf, *cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
ImBuf *ibuf;
int newx, newy;
if(node->custom1==CMP_SCALE_RELATIVE) {
newx= MAX2((int)(in[1]->vec[0]*cbuf->x), 1);
newy= MAX2((int)(in[2]->vec[0]*cbuf->y), 1);
}
else if(node->custom1==CMP_SCALE_SCENEPERCENT) {
newx = cbuf->x * (rd->size / 100.0f);
newy = cbuf->y * (rd->size / 100.0f);
} else { /* CMP_SCALE_ABSOLUTE */
newx= MAX2((int)in[1]->vec[0], 1);
newy= MAX2((int)in[2]->vec[0], 1);
}
newx= MIN2(newx, CMP_SCALE_MAX);
newy= MIN2(newy, CMP_SCALE_MAX);
ibuf= IMB_allocImBuf(cbuf->x, cbuf->y, 32, 0, 0);
if(ibuf) {
ibuf->rect_float= cbuf->rect;
IMB_scaleImBuf(ibuf, newx, newy);
if(ibuf->rect_float == cbuf->rect) {
/* no scaling happened. */
stackbuf= pass_on_compbuf(in[0]->data);
}
else {
stackbuf= alloc_compbuf(newx, newy, CB_RGBA, 0);
stackbuf->rect= ibuf->rect_float;
stackbuf->malloc= 1;
}
ibuf->rect_float= NULL;
ibuf->mall &= ~IB_rectfloat;
IMB_freeImBuf(ibuf);
/* also do the translation vector */
stackbuf->xof = (int)(((float)newx/(float)cbuf->x) * (float)cbuf->xof);
stackbuf->yof = (int)(((float)newy/(float)cbuf->y) * (float)cbuf->yof);
}
else {
stackbuf= dupalloc_compbuf(cbuf);
printf("Scaling to %dx%d failed\n", newx, newy);
}
out[0]->data= stackbuf;
if(cbuf!=in[0]->data)
free_compbuf(cbuf);
}
};
bNodeType cmp_node_scale= {
/* *next,*prev */ NULL, NULL,
/* type code */ CMP_NODE_SCALE,
/* name */ "Scale",
/* width+range */ 140, 100, 320,
/* class+opts */ NODE_CLASS_DISTORT, NODE_OPTIONS,
/* input sock */ cmp_node_scale_in,
/* output sock */ cmp_node_scale_out,
/* storage */ "",
/* execfunc */ node_composit_exec_scale,
/* butfunc */ NULL,
/* initfunc */ NULL,
/* freestoragefunc */ NULL,
/* copystoragefunc */ NULL,
/* id */ NULL
};
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