blob: c7014b56ee48e04a44bd3f5a8005ed91a9ed09d7 (
plain) (
blame)
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
|
/***************************************************************************
video.c
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "emu.h"
#include "includes/truco.h"
PALETTE_INIT( truco )
{
int i;
for (i = 0;i < machine.total_colors();i++)
{
int r = ( i & 0x8 ) ? 0xff : 0x00;
int g = ( i & 0x4 ) ? 0xff : 0x00;
int b = ( i & 0x2 ) ? 0xff : 0x00;
int dim = ( i & 0x1 );
if ( dim ) {
r >>= 1;
g >>= 1;
b >>= 1;
}
palette_set_color(machine,i,MAKE_RGB(r,g,b));
}
}
SCREEN_UPDATE( truco )
{
truco_state *state = screen->machine().driver_data<truco_state>();
UINT8 *videoram = state->m_videoram;
UINT8 *vid = videoram;
int x, y;
for( y = 0; y < 192; y++ )
{
for( x = 0; x < 256; x++ )
{
int pixel;
if ( x & 1 )
pixel = vid[x>>1] & 0x0f;
else
pixel = ( vid[x>>1] >> 4 ) & 0x0f;
*BITMAP_ADDR16(bitmap, y, x) = pixel;
}
vid += 0x80;
}
return 0;
}
|