diff options
Diffstat (limited to 'source/blender/nodes/composite/nodes/node_composite_normalize.c')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_normalize.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_normalize.c b/source/blender/nodes/composite/nodes/node_composite_normalize.c new file mode 100644 index 00000000000..1c5c3b57b80 --- /dev/null +++ b/source/blender/nodes/composite/nodes/node_composite_normalize.c @@ -0,0 +1,117 @@ +/* + * $Id: CMP_normalize.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): gsr b3d, and a very minor edit from Robert Holcomb + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/nodes/composite/nodes/node_composite_normalize.c + * \ingroup cmpnodes + */ + + +#include "node_composite_util.h" + + +/* **************** NORMALIZE single channel, useful for Z buffer ******************** */ +static bNodeSocketTemplate cmp_node_normalize_in[]= { + { SOCK_FLOAT, 1, "Value", 1.0f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + { -1, 0, "" } +}; +static bNodeSocketTemplate cmp_node_normalize_out[]= { + { SOCK_FLOAT, 0, "Value"}, + { -1, 0, "" } +}; + +static void do_normalize(bNode *UNUSED(node), float *out, float *src, float *min, float *mult) +{ + float res; + res = (src[0] - min[0]) * mult[0]; + if (res > 1.0f) { + out[0] = 1.0f; + } + else if (res < 0.0f) { + out[0] = 0.0f; + } + else { + out[0] = res; + } +} + +/* The code below assumes all data is inside range +- this, and that input buffer is single channel */ +#define BLENDER_ZMAX 10000.0f + +static void node_composit_exec_normalize(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out) +{ + /* stack order in: valbuf */ + /* stack order out: valbuf */ + if(out[0]->hasoutput==0) return; + + /* Input has no image buffer? Then pass the value */ + if(in[0]->data==NULL) { + QUATCOPY(out[0]->vec, in[0]->vec); + } + else { + float min = 1.0f+BLENDER_ZMAX; + float max = -1.0f-BLENDER_ZMAX; + float mult = 1.0f; + float *val; + /* make output size of input image */ + CompBuf *cbuf= in[0]->data; + int tot= cbuf->x*cbuf->y; + CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */ + + for (val = cbuf->rect; tot; tot--, val++) { + if ((*val > max) && (*val <= BLENDER_ZMAX)) { + max = *val; + } + if ((*val < min) && (*val >= -BLENDER_ZMAX)) { + min = *val; + } + } + /* In the rare case of flat buffer, which would cause a divide by 0, just pass the input to the output */ + if ((max-min) != 0.0f) { + mult = 1.0f/(max-min); + composit3_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, NULL, &min, NULL, &mult, do_normalize, CB_VAL, CB_VAL, CB_VAL); + } else { + memcpy(stackbuf->rect, cbuf->rect, sizeof(float) * cbuf->x * cbuf->y); + } + + out[0]->data= stackbuf; + } +} + +void register_node_type_cmp_normalize(ListBase *lb) +{ + static bNodeType ntype; + + node_type_base(&ntype, CMP_NODE_NORMALIZE, "Normalize", NODE_CLASS_OP_VECTOR, NODE_OPTIONS); + node_type_socket_templates(&ntype, cmp_node_normalize_in, cmp_node_normalize_out); + node_type_size(&ntype, 100, 60, 150); + node_type_exec(&ntype, node_composit_exec_normalize); + node_type_storage(&ntype, "TexMapping", NULL, NULL); + + nodeRegisterType(lb, &ntype); +} |