112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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): Robin Allen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/texture/nodes/node_texture_image.c
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* \ingroup texnodes
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*/
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#include "node_texture_util.h"
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#include "NOD_texture.h"
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static bNodeSocketTemplate outputs[] = {
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{ SOCK_RGBA, 0, N_("Image")},
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{ -1, 0, "" }
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};
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static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **UNUSED(in), short UNUSED(thread))
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{
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float x = p->co[0];
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float y = p->co[1];
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Image *ima = (Image *)node->id;
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ImageUser *iuser = (ImageUser *)node->storage;
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if (ima) {
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ImBuf *ibuf = BKE_image_acquire_ibuf(ima, iuser, NULL);
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if (ibuf) {
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float xsize, ysize;
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float xoff, yoff;
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int px, py;
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float *result;
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xsize = ibuf->x / 2;
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ysize = ibuf->y / 2;
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xoff = yoff = -1;
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px = (int)( (x - xoff) * xsize);
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py = (int)( (y - yoff) * ysize);
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if ( (!xsize) || (!ysize) ) return;
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if (!ibuf->rect_float) {
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BLI_lock_thread(LOCK_IMAGE);
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if (!ibuf->rect_float)
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IMB_float_from_rect(ibuf);
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BLI_unlock_thread(LOCK_IMAGE);
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}
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while (px < 0) px += ibuf->x;
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while (py < 0) py += ibuf->y;
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while (px >= ibuf->x) px -= ibuf->x;
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while (py >= ibuf->y) py -= ibuf->y;
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result = ibuf->rect_float + py * ibuf->x * 4 + px * 4;
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copy_v4_v4(out, result);
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BKE_image_release_ibuf(ima, ibuf, NULL);
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}
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}
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}
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static void exec(void *data, int UNUSED(thread), bNode *node, bNodeExecData *execdata, bNodeStack **in, bNodeStack **out)
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{
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tex_output(node, execdata, in, out[0], &colorfn, data);
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}
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static void init(bNodeTree *UNUSED(ntree), bNode *node)
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{
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ImageUser *iuser = MEM_callocN(sizeof(ImageUser), "node image user");
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node->storage = iuser;
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iuser->sfra = 1;
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iuser->fie_ima = 2;
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iuser->ok = 1;
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}
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void register_node_type_tex_image(void)
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{
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static bNodeType ntype;
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tex_node_type_base(&ntype, TEX_NODE_IMAGE, "Image", NODE_CLASS_INPUT, NODE_PREVIEW);
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node_type_socket_templates(&ntype, NULL, outputs);
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node_type_init(&ntype, init);
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node_type_storage(&ntype, "ImageUser", node_free_standard_storage, node_copy_standard_storage);
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node_type_exec(&ntype, NULL, NULL, exec);
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nodeRegisterType(&ntype);
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}
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