1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/* video/pass.c - see drivers/pass.c for more info */
#include "driver.h"
static tilemap *pass_bg_tilemap;
static tilemap *pass_fg_tilemap;
/* in drivers/pass.c */
extern UINT16 *pass_bg_videoram;
extern UINT16 *pass_fg_videoram;
/* end in drivers/pass.c */
/* background tilemap stuff */
static TILE_GET_INFO( get_pass_bg_tile_info )
{
int tileno,fx;
tileno = pass_bg_videoram[tile_index] & 0x1fff;
fx = (pass_bg_videoram[tile_index] & 0xc000) >> 14;
SET_TILE_INFO(1,tileno,0,TILE_FLIPYX(fx));
}
WRITE16_HANDLER( pass_bg_videoram_w )
{
pass_bg_videoram[offset] = data;
tilemap_mark_tile_dirty(pass_bg_tilemap,offset);
}
/* foreground 'sprites' tilemap stuff */
static TILE_GET_INFO( get_pass_fg_tile_info )
{
int tileno, flip;
tileno = pass_fg_videoram[tile_index] & 0x3fff;
flip = (pass_fg_videoram[tile_index] & 0xc000) >>14;
SET_TILE_INFO(0,tileno,0,TILE_FLIPYX(flip));
}
WRITE16_HANDLER( pass_fg_videoram_w )
{
pass_fg_videoram[offset] = data;
tilemap_mark_tile_dirty(pass_fg_tilemap,offset);
}
/* video update / start */
VIDEO_UPDATE( pass )
{
tilemap_draw(bitmap,cliprect,pass_bg_tilemap,0,0);
tilemap_draw(bitmap,cliprect,pass_fg_tilemap,0,0);
return 0;
}
VIDEO_START( pass )
{
pass_bg_tilemap = tilemap_create(get_pass_bg_tile_info,tilemap_scan_rows,TILEMAP_TYPE_PEN, 8, 8,64,32);
pass_fg_tilemap = tilemap_create(get_pass_fg_tile_info,tilemap_scan_rows,TILEMAP_TYPE_PEN, 4, 4,128,64);
tilemap_set_transparent_pen(pass_fg_tilemap,255);
}
|