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1.1 root 1: /*
2: Hatari - main.c
3:
4: This file is distributed under the GNU Public License, version 2 or at
5: your option any later version. Read the file gpl.txt for details.
6:
7: Main initialization and event handling routines.
8: */
9:
10: #include <time.h>
11: #include <signal.h>
12: #include <sys/time.h>
13: #include <unistd.h>
14: #include <signal.h>
15:
16: #include <SDL.h>
17:
18: #include "main.h"
19: #include "audio.h"
20: #include "../m68000.h"
21: #include "hostcall.h"
22: #include "input.h"
23: #include "keymap.h"
24: #include "screen.h"
25: #include "shortcut.h"
26:
27:
28: #define FORCE_WORKING_DIR /* Set default directory to cwd */
29:
30:
31: BOOL bQuitProgram=FALSE; /* Flag to quit program cleanly */
32: BOOL bUseFullscreen=FALSE;
33: BOOL bEmulationActive=TRUE; /* Run emulation when started */
34: BOOL bAppActive = FALSE;
35: char szBootDiscImage[MAX_FILENAME_LENGTH] = { "" };
36:
37: char szWorkingDir[MAX_FILENAME_LENGTH] = { "" };
38: char szCurrentDir[MAX_FILENAME_LENGTH] = { "" };
39:
40: /*-----------------------------------------------------------------------*/
41: /*
42: Error handler
43: */
44: void Main_SysError(char *Error,char *Title)
45: {
46: fprintf(stderr,"%s : %s\n",Title,Error);
47: }
48:
49:
50: /*-----------------------------------------------------------------------*/
51: /*
52: Bring up message(handles full-screen as well as Window)
53: */
54: int Main_Message(char *lpText, char *lpCaption/*,unsigned int uType*/)
55: {
56: int Ret=0;
57:
58: /* Show message */
59: fprintf(stderr,"%s: %s\n", lpCaption, lpText);
60:
61: return(Ret);
62: }
63:
64:
65: /*-----------------------------------------------------------------------*/
66: /*
67: Pause emulation, stop sound
68: */
69: void Main_PauseEmulation(void)
70: {
71: if( bEmulationActive )
72: {
73: Audio_EnableAudio(FALSE);
74: bEmulationActive = FALSE;
75: }
76: }
77:
78: /*-----------------------------------------------------------------------*/
79: /*
80: Start emulation
81: */
82: void Main_UnPauseEmulation(void)
83: {
84: if( !bEmulationActive )
85: {
86: Audio_EnableAudio(1);
87: bEmulationActive = TRUE;
88: }
89: }
90:
91: /* ----------------------------------------------------------------------- */
92: /*
93: Message handler
94: Here we process the SDL events (keyboard, mouse, ...) and map it to
95: Atari IKBD events.
96: */
97: void Main_EventHandler()
98: {
99: SDL_Event event;
100:
101: while (SDL_PollEvent (&event))
102: switch( event.type )
103: {
104: case SDL_QUIT:
105: bQuitProgram = TRUE;
106: SDL_Quit ();
107: exit (0);
108: break;
109: case SDL_MOUSEMOTION: /* Read/Update internal mouse position */
110: input.motion_x += event.motion.xrel;
111: input.motion_y += event.motion.yrel;
112: input.abs_x = event.motion.x;
113: input.abs_y = event.motion.y;
114: break;
115: case SDL_MOUSEBUTTONDOWN:
116: Input_MousePress (event.button.button);
117: break;
118: case SDL_MOUSEBUTTONUP:
119: Input_MouseRelease (event.button.button);
120: break;
121: case SDL_KEYDOWN:
122: Keymap_KeyDown(&event.key.keysym);
123: break;
124: case SDL_KEYUP:
125: Keymap_KeyUp(&event.key.keysym);
126: break;
127: }
128: Input_Update ();
129: }
130:
131:
132: /*-----------------------------------------------------------------------*/
133: /*
134: Check for any passed parameters
135: */
136: void Main_ReadParameters(int argc, char *argv[])
137: {
138: int i;
139:
140: /* Scan for any which we can use */
141: for(i=1; i<argc; i++)
142: {
143: if (strlen(argv[i])>0)
144: {
145: if (!strcmp(argv[i],"--help") || !strcmp(argv[i],"-h"))
146: {
147: printf("Usage:\n frontier [options]\n"
148: "Where options are:\n"
149: " --help or -h Print this help text and exit.\n"
150: " --fullscreen or -f Try to use fullscreen mode.\n"
151: " --nosound Disable sound (faster!).\n"
152: " --size w h Start at specified window size.\n"
153: );
154: exit(0);
155: }
156: else if (!strcmp(argv[i],"--fullscreen") || !strcmp(argv[i],"-f"))
157: {
158: bUseFullscreen=TRUE;
159: }
160: else if ( !strcmp(argv[i],"--nosound") )
161: {
162: bDisableSound=TRUE;
163: }
164: else if ( !strcmp(argv[i],"--size") )
165: {
166: screen_h = 0;
167: if (++i < argc) screen_w = atoi (argv[i]);
168: if (++i < argc) screen_h = atoi (argv[i]);
169: /* fe2 likes 1.6 aspect ratio until i fix the mouse position
170: * to 3d object position code... */
171: if (screen_h == 0) screen_h = 5*screen_w/8;
172: }
173: else
174: {
175: /* some time make it possible to read alternative
176: * names for fe2.bin from command line */
177: fprintf(stderr,"Illegal parameter: %s\n",argv[i]);
178: }
179: }
180: }
181: }
182:
183:
184: /*-----------------------------------------------------------------------*/
185: /*
186: Initialise emulation
187: */
188: void Main_Init(void)
189: {
190: /* Init SDL's video subsystem. Note: Audio and joystick subsystems
191: will be initialized later (failures there are not fatal). */
192: if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) < 0)
193: {
194: fprintf(stderr, "Could not initialize the SDL library:\n %s\n", SDL_GetError() );
195: exit(-1);
196: }
197:
198: Screen_Init();
199: Init680x0(); /* Init CPU emulation */
200: Audio_Init();
201: Keymap_Init();
202:
203: if(bQuitProgram)
204: {
205: SDL_Quit();
206: exit(-2);
207: }
208: }
209:
210:
211: /*-----------------------------------------------------------------------*/
212: /*
213: Un-Initialise emulation
214: */
215: void Main_UnInit(void)
216: {
217: Audio_UnInit();
218: Screen_UnInit();
219:
220: /* SDL uninit: */
221: SDL_Quit();
222: }
223:
224: static Uint32 vbl_callback ()
225: {
226: FlagException (0);
227: return 20;
228: }
229:
230: void sig_handler (int signum)
231: {
232: if (signum == SIGSEGV) {
233: printf ("Segfault! All is lost! Abandon ship!\n");
234: Call_DumpDebug ();
235: abort ();
236: }
237: }
238:
239: /*-----------------------------------------------------------------------*/
240: /*
241: Main
242: */
243: int main(int argc, char *argv[])
244: {
245: signal (SIGSEGV, sig_handler);
246:
247: /* Generate random seed */
248: srand( time(NULL) );
249:
250: /* Check for any passed parameters */
251: Main_ReadParameters(argc, argv);
252:
253: /* Init emulator system */
254: Main_Init();
255:
256: /* Switch immediately to fullscreen if user wants to */
257: if( bUseFullscreen )
258: Screen_ToggleFullScreen();
259:
260: SDL_AddTimer (20, &vbl_callback, NULL);
261:
262: /* Run emulation */
263: Main_UnPauseEmulation();
264: Start680x0(); /* Start emulation */
265:
266: /* Un-init emulation system */
267: Main_UnInit();
268:
269: return(0);
270: }
271:
272:
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