diff options
Diffstat (limited to 'source/blender/nodes/composite/nodes/node_composite_scale.c')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_scale.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_scale.c b/source/blender/nodes/composite/nodes/node_composite_scale.c new file mode 100644 index 00000000000..4ba654e82d4 --- /dev/null +++ b/source/blender/nodes/composite/nodes/node_composite_scale.c @@ -0,0 +1,134 @@ +/* + * $Id: CMP_scale.c 36593 2011-05-10 11:19:26Z lukastoenne $ + * + * ***** 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 ******************** */ + +#define CMP_SCALE_MAX 12000 + +static bNodeSocketTemplate cmp_node_scale_in[]= { + { SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f}, + { SOCK_FLOAT, 1, "X", 1.0f, 0.0f, 0.0f, 0.0f, 0.0001f, CMP_SCALE_MAX, PROP_FACTOR}, + { SOCK_FLOAT, 1, "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, "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; + + 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) { + 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)(((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); + } +} + +void register_node_type_cmp_scale(ListBase *lb) +{ + static bNodeType ntype; + + node_type_base(&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(lb, &ntype); +} + + + + + + + |