/
SDL_xbios_tt.c
133 lines (105 loc) · 2.98 KB
/
SDL_xbios_tt.c
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
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
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
TT Xbios video functions
Patrice Mandin
*/
#include <mint/cookie.h>
#include <mint/osbind.h>
#include "../SDL_sysvideo.h"
#include "SDL_xbios.h"
#include "SDL_xbios_nova.h"
static const xbiosmode_t ttmodes[]={
{TT_LOW,320,480,8, XBIOSMODE_C2P},
{TT_LOW,320,240,8, XBIOSMODE_C2P|XBIOSMODE_DOUBLELINE}
};
static void listModes(_THIS, int actually_add);
static void saveMode(_THIS, SDL_PixelFormat *vformat);
static void setMode(_THIS, xbiosmode_t *new_video_mode);
static void restoreMode(_THIS);
static int setColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
void SDL_XBIOS_VideoInit_TT(_THIS)
{
long cookie_nova;
XBIOS_listModes = listModes;
XBIOS_saveMode = saveMode;
XBIOS_setMode = setMode;
XBIOS_restoreMode = restoreMode;
this->SetColors = setColors;
/* NOVA card ? */
if (Getcookie(C_NOVA, &cookie_nova) == C_FOUND) {
SDL_XBIOS_VideoInit_Nova(this, (void *) cookie_nova);
}
}
static void listModes(_THIS, int actually_add)
{
int i;
for (i=0; i<sizeof(ttmodes)/sizeof(xbiosmode_t); i++) {
SDL_XBIOS_AddMode(this, actually_add, &ttmodes[i]);
}
}
static void saveMode(_THIS, SDL_PixelFormat *vformat)
{
XBIOS_oldvbase=Physbase();
XBIOS_oldvmode=EgetShift();
switch(XBIOS_oldvmode & ES_MODE) {
case TT_LOW:
XBIOS_oldnumcol=256;
break;
case ST_LOW:
case TT_MED:
XBIOS_oldnumcol=16;
break;
case ST_MED:
XBIOS_oldnumcol=4;
break;
case ST_HIGH:
case TT_HIGH:
XBIOS_oldnumcol=2;
break;
}
if (XBIOS_oldnumcol) {
EgetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
}
static void setMode(_THIS, xbiosmode_t *new_video_mode)
{
Setscreen(-1,XBIOS_screens[0],-1);
EsetShift(new_video_mode->number);
}
static void restoreMode(_THIS)
{
Setscreen(-1,XBIOS_oldvbase,-1);
EsetShift(XBIOS_oldvmode);
if (XBIOS_oldnumcol) {
EsetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette);
}
}
static int setColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
{
int i, r,g,b;
for(i = 0; i < ncolors; i++) {
r = colors[i].r;
g = colors[i].g;
b = colors[i].b;
TT_palette[i]=((r>>4)<<8)|((g>>4)<<4)|(b>>4);
}
EsetPalette(firstcolor,ncolors,TT_palette);
return(1);
}