Initial commit. Not in build system so shouldn't interfere with anything at this...
[blender-staging.git] / source / blender / nodes / intern / CMP_nodes / CMP_texture.c
1 /**
2  * $Id$
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version. 
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * The Original Code is Copyright (C) 2006 Blender Foundation.
21  * All rights reserved.
22  *
23  * The Original Code is: all of this file.
24  *
25  * Contributor(s): none yet.
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  */
29
30 #include "../CMP_util.h"
31
32 /* **************** TEXTURE ******************** */
33 static bNodeSocketType cmp_node_texture_in[]= {
34         {       SOCK_VECTOR, 1, "Offset",               0.0f, 0.0f, 0.0f, 0.0f, -2.0f, 2.0f},
35         {       SOCK_VECTOR, 1, "Scale",                1.0f, 1.0f, 1.0f, 1.0f, -10.0f, 10.0f},
36         {       -1, 0, ""       }
37 };
38 static bNodeSocketType cmp_node_texture_out[]= {
39         {       SOCK_VALUE, 0, "Value",         1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
40         {       SOCK_RGBA , 0, "Color",         1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f},
41         {       -1, 0, ""       }
42 };
43
44 /* called without rect allocated */
45 static void texture_procedural(CompBuf *cbuf, float *col, float xco, float yco)
46 {
47         bNode *node= cbuf->node;
48         bNodeSocket *sock= node->inputs.first;
49         TexResult texres= {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0, NULL};
50         float vec[3], *size, nor[3]={0.0f, 0.0f, 0.0f};
51         int retval, type= cbuf->type;
52         
53         size= sock->next->ns.vec;
54         
55         vec[0]= size[0]*(xco + sock->ns.vec[0]);
56         vec[1]= size[1]*(yco + sock->ns.vec[1]);
57         vec[2]= size[2]*sock->ns.vec[2];
58         
59         retval= multitex_ext((Tex *)node->id, vec, NULL, NULL, 0, &texres);
60         
61         if(type==CB_VAL) {
62                 if(texres.talpha)
63                         col[0]= texres.ta;
64                 else
65                         col[0]= texres.tin;
66         }
67         else if(type==CB_RGBA) {
68                 if(texres.talpha)
69                         col[3]= texres.ta;
70                 else
71                         col[3]= texres.tin;
72                 
73                 if((retval & TEX_RGB)) {
74                         col[0]= texres.tr;
75                         col[1]= texres.tg;
76                         col[2]= texres.tb;
77                 }
78                 else col[0]= col[1]= col[2]= col[3];
79         }
80         else { 
81                 VECCOPY(col, nor);
82         }
83 }
84
85 /* texture node outputs get a small rect, to make sure all other nodes accept it */
86 /* only the pixel-processor nodes do something with it though */
87 static void node_composit_exec_texture(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
88 {
89         /* outputs: value, color, normal */
90         
91         if(node->id) {
92                 /* first make the preview image */
93                 CompBuf *prevbuf= alloc_compbuf(140, 140, CB_RGBA, 1); /* alloc */
94                 
95                 prevbuf->rect_procedural= texture_procedural;
96                 prevbuf->node= node;
97                 composit1_pixel_processor(node, prevbuf, prevbuf, out[0]->vec, do_copy_rgba, CB_RGBA);
98                 generate_preview(node, prevbuf);
99                 free_compbuf(prevbuf);
100                 
101                 if(out[0]->hasoutput) {
102                         CompBuf *stackbuf= alloc_compbuf(140, 140, CB_VAL, 1); /* alloc */
103                         
104                         stackbuf->rect_procedural= texture_procedural;
105                         stackbuf->node= node;
106                         
107                         out[0]->data= stackbuf;
108                 }
109                 if(out[1]->hasoutput) {
110                         CompBuf *stackbuf= alloc_compbuf(140, 140, CB_RGBA, 1); /* alloc */
111                         
112                         stackbuf->rect_procedural= texture_procedural;
113                         stackbuf->node= node;
114                         
115                         out[1]->data= stackbuf;
116                 }
117         }
118 }
119
120 bNodeType cmp_node_texture= {
121         /* type code   */       CMP_NODE_TEXTURE,
122         /* name        */       "Texture",
123         /* width+range */       120, 80, 240,
124         /* class+opts  */       NODE_CLASS_INPUT, NODE_OPTIONS|NODE_PREVIEW,
125         /* input sock  */       cmp_node_texture_in,
126         /* output sock */       cmp_node_texture_out,
127         /* storage     */       "",
128         /* execfunc    */       node_composit_exec_texture,
129    /* butfunc     */ node_buts_texture
130         
131 };
132
133