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/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "art_uta.h"
#include <string.h>
#include "art_misc.h"
/**
* art_uta_new: Allocate a new uta.
* @x0: Left coordinate of uta.
* @y0: Top coordinate of uta.
* @x1: Right coordinate of uta.
* @y1: Bottom coordinate of uta.
*
* Allocates a new microtile array. The arguments are in units of
* tiles, not pixels.
*
* Returns: the newly allocated #ArtUta.
**/
ArtUta *
art_uta_new (gint x0, gint y0, gint x1, gint y1)
{
ArtUta *uta;
uta = art_new (ArtUta, 1);
uta->x0 = x0;
uta->y0 = y0;
uta->width = x1 - x0;
uta->height = y1 - y0;
uta->utiles = art_new (ArtUtaBbox, uta->width * uta->height);
memset (uta->utiles, 0, uta->width * uta->height * sizeof (ArtUtaBbox));
return uta;
}
/**
* art_uta_new_coords: Allocate a new uta, based on pixel coordinates.
* @x0: Left coordinate of uta.
* @y0: Top coordinate of uta.
* @x1: Right coordinate of uta.
* @y1: Bottom coordinate of uta.
*
* Allocates a new microtile array. The arguments are in pixels
*
* Returns: the newly allocated #ArtUta.
**/
ArtUta *
art_uta_new_coords (gint x0, gint y0, gint x1, gint y1)
{
return art_uta_new (x0 >> ART_UTILE_SHIFT, y0 >> ART_UTILE_SHIFT,
1 + (x1 >> ART_UTILE_SHIFT),
1 + (y1 >> ART_UTILE_SHIFT));
}
/**
* art_uta_free: Free a uta.
* @uta: The uta to free.
*
* Frees the microtile array structure, including the actual microtile
* data.
**/
void
art_uta_free (ArtUta *uta)
{
art_free (uta->utiles);
art_free (uta);
}
/* User to Aardvark! */
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