diff options
Diffstat (limited to 'source/blender/nodes/composite/nodes/node_composite_colorMatte.c')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_colorMatte.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_colorMatte.c b/source/blender/nodes/composite/nodes/node_composite_colorMatte.c new file mode 100644 index 00000000000..7f687240daf --- /dev/null +++ b/source/blender/nodes/composite/nodes/node_composite_colorMatte.c @@ -0,0 +1,143 @@ +/* + * $Id: CMP_colorMatte.c 36536 2011-05-07 13:27:27Z 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): Bob Holcomb + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/nodes/composite/nodes/node_composite_colorMatte.c + * \ingroup cmpnodes + */ + + +#include "node_composite_util.h" + +/* ******************* Color Key ********************************************************** */ +static bNodeSocketTemplate cmp_node_color_in[]={ + {SOCK_RGBA,1,"Image", 0.8f, 0.8f, 0.8f, 1.0f}, + {SOCK_RGBA,1,"Key Color", 0.8f, 0.8f, 0.8f, 1.0f}, + {-1,0,""} +}; + +static bNodeSocketTemplate cmp_node_color_out[]={ + {SOCK_RGBA,0,"Image"}, + {SOCK_FLOAT,0,"Matte"}, + {-1,0,""} +}; + +static void do_color_key(bNode *node, float *out, float *in) +{ + float h_wrap; + NodeChroma *c; + c=node->storage; + + + VECCOPY(out, in); + + if( + /* do hue last because it needs to wrap, and does some more checks */ + + /* sat */ (fabs(in[1]-c->key[1]) < c->t2) && + /* val */ (fabs(in[2]-c->key[2]) < c->t3) && + + /* multiply by 2 because it wraps on both sides of the hue, + * otherwise 0.5 would key all hue's */ + + /* hue */ ((h_wrap= 2.0f * fabs(in[0]-c->key[0])) < c->t1 || (2.0f - h_wrap) < c->t1) + ) { + out[3]=0.0; /*make transparent*/ + } + + else { /*pixel is outside key color */ + out[3]=in[3]; /* make pixel just as transparent as it was before */ + } +} + +static void node_composit_exec_color_matte(void *data, bNode *node, bNodeStack **in, bNodeStack **out) +{ + CompBuf *cbuf; + CompBuf *colorbuf; + NodeChroma *c; + + if(in[0]->hasinput==0) return; + if(in[0]->data==NULL) return; + if(out[0]->hasoutput==0 && out[1]->hasoutput==0) return; + + cbuf= typecheck_compbuf(in[0]->data, CB_RGBA); + + colorbuf= dupalloc_compbuf(cbuf); + + c=node->storage; + + /*convert rgbbuf to hsv*/ + composit1_pixel_processor(node, colorbuf, cbuf, in[0]->vec, do_rgba_to_hsva, CB_RGBA); + + /*convert key to hsv*/ + do_rgba_to_hsva(node, c->key, in[1]->vec); + + + /*per pixel color key*/ + composit1_pixel_processor(node, colorbuf, colorbuf, in[0]->vec, do_color_key, CB_RGBA); + + /*convert back*/ + composit1_pixel_processor(node, colorbuf, colorbuf, in[0]->vec, do_hsva_to_rgba, CB_RGBA); + + out[0]->data= colorbuf; + if(out[1]->hasoutput) + out[1]->data= valbuf_from_rgbabuf(colorbuf, CHAN_A); + + generate_preview(data, node, colorbuf); + + if(cbuf!=in[0]->data) + free_compbuf(cbuf); +} + +static void node_composit_init_color_matte(bNodeTree *UNUSED(ntree), bNode* node, bNodeTemplate *UNUSED(ntemp)) +{ + NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node color"); + node->storage= c; + c->t1= 0.01f; + c->t2= 0.1f; + c->t3= 0.1f; + c->fsize= 0.0f; + c->fstrength= 1.0f; +} + +void register_node_type_cmp_color_matte(ListBase *lb) +{ + static bNodeType ntype; + + node_type_base(&ntype, CMP_NODE_COLOR_MATTE, "Color Key", NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS); + node_type_socket_templates(&ntype, cmp_node_color_in, cmp_node_color_out); + node_type_size(&ntype, 200, 80, 300); + node_type_init(&ntype, node_composit_init_color_matte); + node_type_storage(&ntype, "NodeChroma", node_free_standard_storage, node_copy_standard_storage); + node_type_exec(&ntype, node_composit_exec_color_matte); + + nodeRegisterType(lb, &ntype); +} + + + |