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/*
* ***** 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) 2011 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Blender Foundation,
* Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/nodes/composite/nodes/node_composite_transform.c
* \ingroup cmpnodes
*/
#include "node_composite_util.h"
/* **************** Transform ******************** */
static bNodeSocketTemplate cmp_node_transform_in[] = {
{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{ SOCK_FLOAT, 1, "X", 0.0f, 0.0f, 0.0f, 0.0f, -10000.0f, 10000.0f},
{ SOCK_FLOAT, 1, "Y", 0.0f, 0.0f, 0.0f, 0.0f, -10000.0f, 10000.0f},
{ SOCK_FLOAT, 1, "Angle", 0.0f, 0.0f, 0.0f, 0.0f, -10000.0f, 10000.0f, PROP_ANGLE},
{ SOCK_FLOAT, 1, "Scale", 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX},
{ -1, 0, "" }
};
static bNodeSocketTemplate cmp_node_transform_out[] = {
{ SOCK_RGBA, 0, "Image"},
{ -1, 0, "" }
};
CompBuf* node_composit_transform(CompBuf *cbuf, float x, float y, float angle, float scale, int filter_type)
{
CompBuf *stackbuf = alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, TRUE);
ImBuf *ibuf, *obuf;
float mat[4][4], lmat[4][4], rmat[4][4], smat[4][4], cmat[4][4], icmat[4][4];
float svec[3] = {scale, scale, scale}, loc[2] = {x, y};
unit_m4(rmat);
unit_m4(lmat);
unit_m4(smat);
unit_m4(cmat);
/* image center as rotation center */
cmat[3][0] = (float)cbuf->x/2.0f;
cmat[3][1] = (float)cbuf->y/2.0f;
invert_m4_m4(icmat, cmat);
size_to_mat4(smat, svec); /* scale matrix */
add_v2_v2(lmat[3], loc); /* tranlation matrix */
rotate_m4(rmat, 'Z', angle); /* rotation matrix */
/* compose transformation matrix */
mul_serie_m4(mat, lmat, cmat, rmat, smat, icmat, NULL, NULL, NULL);
invert_m4(mat);
ibuf = IMB_allocImBuf(cbuf->x, cbuf->y, 32, 0);
obuf = IMB_allocImBuf(stackbuf->x, stackbuf->y, 32, 0);
if (ibuf && obuf) {
int i, j;
ibuf->rect_float = cbuf->rect;
obuf->rect_float = stackbuf->rect;
for (j = 0; j < cbuf->y; j++) {
for (i = 0; i < cbuf->x; i++) {
float vec[3] = {i, j, 0};
mul_v3_m4v3(vec, mat, vec);
switch (filter_type) {
case 0:
neareast_interpolation(ibuf, obuf, vec[0], vec[1], i, j);
break;
case 1:
bilinear_interpolation(ibuf, obuf, vec[0], vec[1], i, j);
break;
case 2:
bicubic_interpolation(ibuf, obuf, vec[0], vec[1], i, j);
break;
}
}
}
IMB_freeImBuf(ibuf);
IMB_freeImBuf(obuf);
}
/* pass on output and free */
return stackbuf;
}
static void node_composit_exec_transform(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
if (in[0]->data) {
CompBuf *cbuf = typecheck_compbuf(in[0]->data, CB_RGBA);
CompBuf *stackbuf;
stackbuf = node_composit_transform(cbuf, in[1]->vec[0], in[2]->vec[0], in[3]->vec[0], in[4]->vec[0], node->custom1);
/* pass on output and free */
out[0]->data = stackbuf;
if (cbuf != in[0]->data)
free_compbuf(cbuf);
}
}
void register_node_type_cmp_transform(bNodeTreeType *ttype)
{
static bNodeType ntype;
node_type_base(ttype, &ntype, CMP_NODE_TRANSFORM, "Transform", NODE_CLASS_DISTORT, NODE_OPTIONS);
node_type_socket_templates(&ntype, cmp_node_transform_in, cmp_node_transform_out);
node_type_size(&ntype, 140, 100, 320);
node_type_exec(&ntype, node_composit_exec_transform);
nodeRegisterType(ttype, &ntype);
}
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