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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 *****
*/
/** \file blender/nodes/intern/CMP_nodes/CMP_rotate.c
* \ingroup cmpnodes
*/
#include "../CMP_util.h"
/* **************** Rotate ******************** */
static bNodeSocketType cmp_node_rotate_in[]= {
{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{ SOCK_VALUE, 1, "Degr", 0.0f, 0.0f, 0.0f, 0.0f, -10000.0f, 10000.0f},
{ -1, 0, "" }
};
static bNodeSocketType cmp_node_rotate_out[]= {
{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ -1, 0, "" }
};
/* only supports RGBA nodes now */
static void node_composit_exec_rotate(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
if(out[0]->hasoutput==0)
return;
if(in[0]->data) {
CompBuf *cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* note, this returns zero'd image */
float rad, u, v, s, c, centx, centy, miny, maxy, minx, maxx;
int x, y, yo, xo;
ImBuf *ibuf, *obuf;
rad= (M_PI*in[1]->vec[0])/180.0f;
s= sin(rad);
c= cos(rad);
centx= cbuf->x/2;
centy= cbuf->y/2;
minx= -centx;
maxx= -centx + (float)cbuf->x;
miny= -centy;
maxy= -centy + (float)cbuf->y;
ibuf=IMB_allocImBuf(cbuf->x, cbuf->y, 32, 0);
obuf=IMB_allocImBuf(stackbuf->x, stackbuf->y, 32, 0);
if(ibuf && obuf){
ibuf->rect_float=cbuf->rect;
obuf->rect_float=stackbuf->rect;
for(y=miny; y<maxy; y++) {
yo= y+(int)centy;
for(x=minx; x<maxx;x++) {
u=c*x + y*s + centx;
v=-s*x + c*y + centy;
xo= x+(int)centx;
switch(node->custom1) {
case 0:
neareast_interpolation(ibuf, obuf, u, v, xo, yo);
break ;
case 1:
bilinear_interpolation(ibuf, obuf, u, v, xo, yo);
break;
case 2:
bicubic_interpolation(ibuf, obuf, u, v, xo, yo);
}
}
}
/* rotate offset vector too, but why negative rad, ehh?? Has to be replaced with [3][3] matrix once (ton) */
s= sin(-rad);
c= cos(-rad);
centx= (float)cbuf->xof; centy= (float)cbuf->yof;
stackbuf->xof= (int)( c*centx + s*centy);
stackbuf->yof= (int)(-s*centx + c*centy);
IMB_freeImBuf(ibuf);
IMB_freeImBuf(obuf);
}
/* pass on output and free */
out[0]->data= stackbuf;
if(cbuf!=in[0]->data) {
free_compbuf(cbuf);
}
}
}
static void node_composit_init_rotate(bNode *node)
{
node->custom1= 1; /* Bilinear Filter*/
}
void register_node_type_cmp_rotate(ListBase *lb)
{
static bNodeType ntype;
node_type_base(&ntype, CMP_NODE_ROTATE, "Rotate", NODE_CLASS_DISTORT, NODE_OPTIONS,
cmp_node_rotate_in, cmp_node_rotate_out);
node_type_size(&ntype, 140, 100, 320);
node_type_init(&ntype, node_composit_init_rotate);
node_type_exec(&ntype, node_composit_exec_rotate);
nodeRegisterType(lb, &ntype);
}
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