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/*************************************************************************
* Copyright (C) 2009-2010 Tavian Barnes <tavianator@tavianator.com> *
* *
* This file is part of The Dimension Library. *
* *
* The Dimension Library is free software; you can redistribute it and/ *
* or modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* The Dimension Library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
/**
* @file
* Textures.
*/
#include "dimension.h"
/* Allocate a dummy texture */
dmnsn_texture *
dmnsn_new_texture(void)
{
dmnsn_texture *texture = dmnsn_malloc(sizeof(dmnsn_texture));
texture->pigment = NULL;
texture->finish = NULL;
texture->trans = dmnsn_identity_matrix();
texture->refcount = 0;
texture->should_init = true;
return texture;
}
/* Free a texture */
void
dmnsn_delete_texture(dmnsn_texture *texture)
{
if (texture && DMNSN_DECREF(texture)) {
dmnsn_delete_finish(texture->finish);
dmnsn_delete_pigment(texture->pigment);
dmnsn_free(texture);
}
}
/* Calculate matrix inverses */
void
dmnsn_initialize_texture(dmnsn_texture *texture)
{
texture->trans_inv = dmnsn_matrix_inverse(texture->trans);
if (texture->pigment) {
texture->pigment->trans
= dmnsn_matrix_mul(texture->trans, texture->pigment->trans);
dmnsn_initialize_pigment(texture->pigment);
}
}
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