1 /*
2
3 Copyright (C) 2015-2018 Night Dive Studios, LLC.
4
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 */
19 /*
20 * $Source: n:/project/lib/src/2d/RCS/fl8fl8.c $
21 * $Revision: 1.5 $
22 * $Author: kaboom $
23 * $Date: 1993/10/19 09:50:21 $
24 *
25 * Routines for drawing flat 8 bitmaps into a flat 8 canvas.
26 *
27 * This file is part of the 2d library.
28 *
29 * $Log: fl8fl8.c $
30 * Revision 1.5 1993/10/19 09:50:21 kaboom
31 * Replaced #include <grd.h" with new headers split from grd.h.
32 *
33 * Revision 1.4 1993/10/08 01:15:13 kaboom
34 * Changed quotes in #include liness to angle brackets for Watcom problem.
35 *
36 * Revision 1.3 1993/07/12 23:30:56 kaboom
37 * Inline memmove() uses movs.
38 *
39 * Revision 1.2 1993/03/29 18:22:11 kaboom
40 * Changed to inline version of memmove.
41 *
42 * Revision 1.1 1993/02/16 14:14:16 kaboom
43 * Initial revision
44 *
45 ********************************************************************
46 * Log from old flat8.c:
47 * Revision 1.7 1992/12/14 18:08:40 kaboom
48 * Added handing for transparency in the flat8_flat8_ubitmap()
49 * routine.
50 */
51
52 #include "bitmap.h"
53 #include "cnvdat.h"
54 #include "lg.h"
55 #include <string.h>
56
flat8_flat8_ubitmap(grs_bitmap * bm,short x,short y)57 void flat8_flat8_ubitmap(grs_bitmap *bm, short x, short y) {
58 uchar *m_src;
59 uchar *m_dst;
60 int w = bm->w;
61 int h = bm->h;
62 int i;
63 int brow, grow;
64
65 brow = bm->row;
66 grow = grd_bm.row;
67
68 m_src = bm->bits;
69 m_dst = grd_bm.bits + grow * y + x;
70
71 if (bm->flags & BMF_TRANS)
72 while (h--) {
73 for (i = 0; i < w; i++)
74 if (m_src[i] != 0)
75 m_dst[i] = m_src[i];
76 m_src += brow;
77 m_dst += grow;
78 }
79 else
80 while (h--) {
81 memmove(m_dst, m_src, w);
82
83 m_src += brow;
84 m_dst += grow;
85 }
86 }
87