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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) 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/composite/nodes/node_composite_scale.c
* \ingroup cmpnodes
*/
#include "node_composite_util.h"
/* **************** Scale ******************** */
static bNodeSocketTemplate cmp_node_scale_in[] = {
{ SOCK_RGBA, 1, N_("Image"), 1.0f, 1.0f, 1.0f, 1.0f},
{ SOCK_FLOAT, 1, N_("X"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX, PROP_FACTOR},
{ SOCK_FLOAT, 1, N_("Y"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX, PROP_FACTOR},
{ -1, 0, "" }
};
static bNodeSocketTemplate cmp_node_scale_out[] = {
{ SOCK_RGBA, 0, N_("Image")},
{ -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;
float ofsx = 0.0f, ofsy = 0.0f;
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 if (node->custom1 == CMP_SCALE_RENDERPERCENT) {
if (node->custom3 != 0.0f || node->custom4 != 0.0f) {
const float w_dst = (rd->xsch * rd->size) / 100;
const float h_dst = (rd->ysch * rd->size) / 100;
if (w_dst > h_dst) {
ofsx = node->custom3 * w_dst;
ofsy = node->custom4 * w_dst;
}
else {
ofsx = node->custom3 * h_dst;
ofsy = node->custom4 * h_dst;
}
}
/* supports framing options */
if (node->custom2 & CMP_SCALE_RENDERSIZE_FRAME_ASPECT) {
/* apply aspect from clip */
const float w_src = cbuf->x;
const float h_src = cbuf->y;
/* destination aspect is already applied from the camera frame */
const float w_dst = (rd->xsch * rd->size) / 100;
const float h_dst = (rd->ysch * rd->size) / 100;
const float asp_src = w_src / h_src;
const float asp_dst = w_dst / h_dst;
if (fabsf(asp_src - asp_dst) >= FLT_EPSILON) {
if ((asp_src > asp_dst) == ((node->custom2 & CMP_SCALE_RENDERSIZE_FRAME_CROP) != 0)) {
/* fit X */
const float div = asp_src / asp_dst;
newx = w_dst * div;
newy = h_dst;
}
else {
/* fit Y */
const float div = asp_dst / asp_src;
newx = w_dst;
newy = h_dst * div;
}
}
else {
/* same as below - no aspect correction needed */
newx = w_dst;
newy = h_dst;
}
}
else {
/* stretch */
newx = (rd->xsch * rd->size) / 100;
newy = (rd->ysch * rd->size) / 100;
}
}
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);
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)(ofsx + (((float)newx / (float)cbuf->x) * (float)cbuf->xof));
stackbuf->yof = (int)(ofsy + (((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);
}
else if (node->custom1 == CMP_SCALE_ABSOLUTE) {
CompBuf *stackbuf;
int a, x, y;
float *fp;
x = MAX2((int)in[1]->vec[0], 1);
y = MAX2((int)in[2]->vec[0], 1);
stackbuf = alloc_compbuf(x, y, CB_RGBA, 1);
fp = stackbuf->rect;
a = stackbuf->x * stackbuf->y;
while (a--) {
copy_v4_v4(fp, in[0]->vec);
fp += 4;
}
out[0]->data = stackbuf;
}
}
void register_node_type_cmp_scale(bNodeTreeType *ttype)
{
static bNodeType ntype;
node_type_base(ttype, &ntype, CMP_NODE_SCALE, "Scale", NODE_CLASS_DISTORT, NODE_OPTIONS);
node_type_socket_templates(&ntype, cmp_node_scale_in, cmp_node_scale_out);
node_type_size(&ntype, 140, 100, 320);
node_type_exec(&ntype, node_composit_exec_scale);
nodeRegisterType(ttype, &ntype);
}
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