fb0f61c0b0
* refactor copying and freeing of node->storage by handlerizing them. - freestoragefunc - copystoragefunc - node_util.c/h have generic handlers for these.
150 lines
4.1 KiB
C
150 lines
4.1 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2006 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "../CMP_util.h"
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/* **************** Map UV ******************** */
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static bNodeSocketType cmp_node_mapuv_in[]= {
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{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
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{ SOCK_VECTOR, 1, "UV", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketType cmp_node_mapuv_out[]= {
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{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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/* foreach UV, use these values to read in cbuf and write to stackbuf */
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/* stackbuf should be zeroed */
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static void do_mapuv(CompBuf *stackbuf, CompBuf *cbuf, CompBuf *uvbuf, float threshold)
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{
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ImBuf *ibuf;
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float *out= stackbuf->rect, *uv, *uvnext, *uvprev;
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float dx, dy, alpha;
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int x, y, sx, sy, row= 3*stackbuf->x;
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/* ibuf needed for sampling */
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ibuf= IMB_allocImBuf(cbuf->x, cbuf->y, 32, 0, 0);
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ibuf->rect_float= cbuf->rect;
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/* vars for efficient looping */
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uv= uvbuf->rect;
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uvnext= uv+row;
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uvprev= uv-row;
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sx= stackbuf->x;
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sy= stackbuf->y;
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for(y=0; y<sy; y++) {
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for(x=0; x<sx; x++, out+=4, uv+=3, uvnext+=3, uvprev+=3) {
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if(x>0 && x<sx-1 && y>0 && y<sy-1) {
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if(uv[2]!=0.0f) {
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/* adaptive sampling, red (U) channel */
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dx= 0.5f*(fabs(uv[0]-uv[-3]) + fabs(uv[0]-uv[3]));
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dx+= 0.25f*(fabs(uv[0]-uvprev[-3]) + fabs(uv[0]-uvnext[-3]));
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dx+= 0.25f*(fabs(uv[0]-uvprev[+3]) + fabs(uv[0]-uvnext[+3]));
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/* adaptive sampling, green (V) channel */
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dy= 0.5f*(fabs(uv[1]-uv[-row+1]) + fabs(uv[1]-uv[row+1]));
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dy+= 0.25f*(fabs(uv[1]-uvprev[+1-3]) + fabs(uv[1]-uvnext[+1-3]));
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dy+= 0.25f*(fabs(uv[1]-uvprev[+1+3]) + fabs(uv[1]-uvnext[+1+3]));
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/* UV to alpha threshold */
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alpha= 1.0f - threshold*(dx+dy);
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if(alpha<0.0f) alpha= 0.0f;
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else alpha*= uv[2];
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/* should use mipmap */
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if(dx > 0.20f) dx= 0.20f;
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if(dy > 0.20f) dy= 0.20f;
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ibuf_sample(ibuf, uv[0], uv[1], dx, dy, out);
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/* premul */
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if(alpha<1.0f) {
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out[0]*= alpha;
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out[1]*= alpha;
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out[2]*= alpha;
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out[3]*= alpha;
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}
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}
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}
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}
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}
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IMB_freeImBuf(ibuf);
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}
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static void node_composit_exec_mapuv(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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if(out[0]->hasoutput==0)
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return;
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if(in[0]->data && in[1]->data) {
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CompBuf *cbuf= in[0]->data;
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CompBuf *uvbuf= in[1]->data;
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CompBuf *stackbuf;
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cbuf= typecheck_compbuf(cbuf, CB_RGBA);
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uvbuf= typecheck_compbuf(uvbuf, CB_VEC3);
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stackbuf= alloc_compbuf(uvbuf->x, uvbuf->y, CB_RGBA, 1); /* allocs */;
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do_mapuv(stackbuf, cbuf, uvbuf, 0.05f*(float)node->custom1);
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out[0]->data= stackbuf;
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if(cbuf!=in[0]->data)
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free_compbuf(cbuf);
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if(uvbuf!=in[1]->data)
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free_compbuf(uvbuf);
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}
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}
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bNodeType cmp_node_mapuv= {
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/* *next,*prev */ NULL, NULL,
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/* type code */ CMP_NODE_MAP_UV,
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/* name */ "Map UV",
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/* width+range */ 140, 100, 320,
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/* class+opts */ NODE_CLASS_DISTORT, NODE_OPTIONS,
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/* input sock */ cmp_node_mapuv_in,
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/* output sock */ cmp_node_mapuv_out,
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/* storage */ "",
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/* execfunc */ node_composit_exec_mapuv,
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/* butfunc */ NULL,
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/* initfunc */ NULL,
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/* freestoragefunc */ NULL,
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/* copystoragefunc */ NULL,
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/* id */ NULL
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};
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