This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_xbios.c
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2009 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
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
13
Lesser General Public License for more details.
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
20
21
Sam Lantinga
slouken@libsdl.org
*/
22
#include "SDL_config.h"
23
24
25
26
27
28
29
30
31
32
33
/*
* Xbios SDL video driver
*
* Patrice Mandin
*/
#include <sys/stat.h>
#include <unistd.h>
/* Mint includes */
34
#include <mint/cookie.h>
35
36
37
38
39
#include <mint/osbind.h>
#include <mint/falcon.h>
#include "SDL_video.h"
#include "SDL_mouse.h"
40
41
42
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"
44
45
46
47
#include "../ataricommon/SDL_ataric2p_s.h"
#include "../ataricommon/SDL_atarievents_c.h"
#include "../ataricommon/SDL_atarimxalloc_c.h"
#include "../ataricommon/SDL_atarigl_c.h"
48
#include "SDL_xbios.h"
49
#include "SDL_xbiosmodes.h"
51
/* Debug print info */
52
#if 0
53
54
55
56
#define DEBUG_PRINT(what) \
{ \
printf what; \
}
57
#define DEBUG_VIDEO_XBIOS 1
58
59
60
61
#else
#define DEBUG_PRINT(what)
#undef DEBUG_VIDEO_XBIOS
#endif
63
/* Initialization/Query functions */
64
65
66
static int XBIOS_VideoInit(_THIS);
static void XBIOS_VideoQuit(_THIS);
67
68
/* Xbios driver bootstrap functions */
69
70
static int
XBIOS_Available(void)
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
unsigned long cookie_vdo, cookie_mil, cookie_hade, cookie_scpn;
/* Milan/Hades Atari clones do not have an Atari video chip */
if ((Getcookie(C__MIL, &cookie_mil) == C_FOUND) ||
(Getcookie(C_hade, &cookie_hade) == C_FOUND)) {
return 0;
}
/* Cookie _VDO present ? if not, assume ST machine */
if (Getcookie(C__VDO, &cookie_vdo) != C_FOUND) {
cookie_vdo = VDO_ST << 16;
}
/* Test if we have a monochrome monitor plugged in */
switch (cookie_vdo >> 16) {
case VDO_ST:
case VDO_STE:
if (Getrez() == (ST_HIGH >> 8))
return 0;
break;
case VDO_TT:
if ((EgetShift() & ES_MODE) == TT_HIGH)
return 0;
break;
case VDO_F30:
if (VgetMonitor() == MONITOR_MONO)
return 0;
99
/*if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) {
100
101
102
103
if (!SDL_XBIOS_SB3Usable((scpn_cookie_t *) cookie_scpn)) {
return 0;
}
} */
104
105
106
107
108
109
break;
default:
return 0;
}
return 1;
112
113
static void
XBIOS_DeleteDevice(SDL_VideoDevice * device)
115
SDL_free(device->driverdata);
116
SDL_free(device);
119
120
static SDL_VideoDevice *
XBIOS_CreateDevice(int devindex)
122
SDL_VideoDevice *device;
123
SDL_VideoData *data;
124
125
/* Initialize all variables that we clean on shutdown */
126
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
127
if (device) {
128
data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
130
if (!device || !data) {
131
132
133
134
SDL_OutOfMemory();
if (device) {
SDL_free(device);
}
135
return NULL;
137
device->driverdata = data;
138
139
140
/* Video functions */
device->VideoInit = XBIOS_VideoInit;
141
device->VideoQuit = XBIOS_VideoQuit;
142
143
/* Modes */
144
145
device->GetDisplayModes = SDL_XBIOS_GetDisplayModes;
device->SetDisplayMode = SDL_XBIOS_SetDisplayMode;
146
147
148
/* Events */
device->PumpEvents = SDL_Atari_PumpEvents;
150
#if SDL_VIDEO_OPENGL
151
152
153
/* OpenGL functions */
device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary;
device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress;
154
device->GL_CreateContext = NULL;
155
device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent;
156
157
158
159
device->GL_SetSwapInterval = NULL;
device->GL_GetSwapInterval = NULL;
device->GL_SwapWindow = XBIOS_GL_SwapBuffers;
device->GL_DeleteContext = NULL;
162
device->free = XBIOS_DeleteDevice;
164
return device;
165
166
167
}
VideoBootStrap XBIOS_bootstrap = {
168
"xbios", "Atari Xbios driver",
169
XBIOS_Available, XBIOS_CreateDevice
173
XBIOS_VideoInit(_THIS)
175
/* Save screensaver settings */
177
/* Init video mode list, save current video mode settings */
178
SDL_XBIOS_InitModes(_this);
183
184
185
186
187
static void
XBIOS_VideoQuit(_THIS)
{
Atari_ShutdownEvents();
188
/* Restore screensaver settings */
190
/* Restore previous video mode settings */
191
SDL_XBIOS_QuitModes(_this);