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SIG_IGN->SIG_DFL, fixes usb storage mode
[fceu.git] / general.c
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1/* FCE Ultra - NES/Famicom Emulator
2 *
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Xodnizel
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef _GNU_SOURCE
22#define _GNU_SOURCE // for asprintf
23#endif
24
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28#include <stdarg.h>
29
30#include <sys/types.h>
31#include <sys/stat.h>
32#include <unistd.h>
33
34#include "types.h"
35#include "fce.h"
36
37#include "general.h"
38#include "state.h"
39#include "movie.h"
40
41#include "driver.h"
42
43#include "md5.h"
44#include "svga.h"
45
46static char BaseDirectory[2048];
47char FileBase[2048];
48static char FileExt[2048]; /* Includes the . character, as in ".nes" */
49
50static char FileBaseDirectory[2048];
51
52void FCEUI_SetBaseDirectory(char *dir)
53{
54 strncpy(BaseDirectory,dir,2047);
55 BaseDirectory[2047]=0;
56}
57
58static char *odirs[FCEUIOD__COUNT]={0,0,0,0,0}; // odirs, odors. ^_^
59
60void FCEUI_SetDirOverride(int which, char *n)
61{
62// FCEU_PrintError("odirs[%d]=%s->%s", which, odirs[which], n);
63if(which < FCEUIOD__COUNT)
64 odirs[which]=n;
65
66#if 0
67 if(FCEUGameInfo) /* Rebuild cache of present states/movies. */
68 {
69 if(which==FCEUIOD_STATE)
70 FCEUSS_CheckStates();
71 else if(which == FCEUIOD_MISC)
72 FCEUMOV_CheckMovies();
73 }
74#endif
75}
76
77#ifndef HAVE_ASPRINTF
78static int asprintf(char **strp, const char *fmt, ...)
79{
80 va_list ap;
81 int ret;
82
83 va_start(ap,fmt);
84 if(!(*strp=malloc(2048)))
85 return(0);
86 ret=vsnprintf(*strp,2048,fmt,ap);
87 va_end(ap);
88 return(ret);
89}
90#endif
91
92char* FCEU_GetPath(int type)
93{
94 char *ret=0;
95 switch(type)
96 {
97 case FCEUMKF_STATE:if(odirs[FCEUIOD_STATE])
98 ret=strdup(odirs[FCEUIOD_STATE]);
99 else
100 asprintf(&ret,"%s"PSS"movie",BaseDirectory);
101 break;
102 case FCEUMKF_MOVIE:if(odirs[FCEUIOD_MISC])
103 ret=strdup(odirs[FCEUIOD_MISC]);
104 else
105 asprintf(&ret,"%s"PSS"movie",BaseDirectory);
106 break;
107 }
108 return(ret);
109}
110
111char *FCEU_MakePath(int type, const char* filebase)
112{
113 char *ret=0;
114
115 switch(type)
116 {
117 case FCEUMKF_MOVIE:if(odirs[FCEUIOD_MISC])
118 asprintf(&ret,"%s"PSS"%s",odirs[FCEUIOD_MISC],filebase);
119 else
120 asprintf(&ret,"%s"PSS"movie"PSS"%s",BaseDirectory,filebase);
121 break;
122 }
123 return(ret);
124}
125
126char *FCEU_MakeFName(int type, int id1, char *cd1)
127{
128 char *ret=0;
129 struct stat tmpstat;
130
131 switch(type)
132 {
133 case FCEUMKF_NPTEMP: asprintf(&ret,"%s"PSS"m590plqd94fo.tmp",BaseDirectory);break;
134 case FCEUMKF_MOVIE:if(id1>=0)
135 {
136 if(odirs[FCEUIOD_MISC])
137 asprintf(&ret,"%s"PSS"%s.%d.fcm",odirs[FCEUIOD_MISC],FileBase,id1);
138 else
139 asprintf(&ret,"%s"PSS"movie"PSS"%s.%d.fcm",BaseDirectory,FileBase,id1);
140 if(stat(ret,&tmpstat)==-1)
141 {
142 if(odirs[FCEUIOD_MISC])
143 asprintf(&ret,"%s"PSS"%s.%d.fcm",odirs[FCEUIOD_MISC],FileBase,id1);
144 else
145 asprintf(&ret,"%s"PSS"movie"PSS"%s.%d.fcm",BaseDirectory,FileBase,id1);
146 }
147 }
148 else
149 {
150 if(odirs[FCEUIOD_MISC])
151 asprintf(&ret,"%s"PSS"%s.fcm",odirs[FCEUIOD_MISC],FileBase);
152 else
153 asprintf(&ret,"%s"PSS"movie"PSS"%s.fcm",BaseDirectory,FileBase);
154 }
155 break;
156 case FCEUMKF_STATE:if(odirs[FCEUIOD_STATE])
157 {
158 asprintf(&ret,"%s"PSS"%s.fc%d",odirs[FCEUIOD_STATE],FileBase,id1);
159// FCEU_PrintError("A");
160 }
161 else
162 {
163 asprintf(&ret,"%s"PSS"fcs"PSS"%s.fc%d",BaseDirectory,FileBase,id1);
164// FCEU_PrintError("B");
165 }
166 if(stat(ret,&tmpstat)==-1)
167 {
168 if(odirs[FCEUIOD_STATE])
169 {
170 asprintf(&ret,"%s"PSS"%s.fc%d",odirs[FCEUIOD_STATE],FileBase,id1);
171// FCEU_PrintError("C");
172 }
173 else
174 {
175 asprintf(&ret,"%s"PSS"fcs"PSS"%s.fc%d",BaseDirectory,FileBase,id1);
176// FCEU_PrintError("D");
177 }
178 }
179 break;
180 case FCEUMKF_SNAP:
181 if(FSettings.SnapName)
182 {
183 if(odirs[FCEUIOD_SNAPS])
184 asprintf(&ret,"%s"PSS"%s-%d.%s",odirs[FCEUIOD_SNAPS],FileBase,id1,cd1);
185 else
186 asprintf(&ret,"%s"PSS"snaps"PSS"%s-%d.%s",BaseDirectory,FileBase,id1,cd1);
187 }
188 else
189 {
190 if(odirs[FCEUIOD_SNAPS])
191 asprintf(&ret,"%s"PSS"%d.%s",odirs[FCEUIOD_SNAPS],id1,cd1);
192 else
193 asprintf(&ret,"%s"PSS"snaps"PSS"%d.%s",BaseDirectory,id1,cd1);
194 }
195 break;
196 case FCEUMKF_FDS:if(odirs[FCEUIOD_NV])
197 asprintf(&ret,"%s"PSS"%s.fds",odirs[FCEUIOD_NV],FileBase);
198 else
199 asprintf(&ret,"%s"PSS"sav"PSS"%s.fds",BaseDirectory,FileBase);
200 break;
201 case FCEUMKF_SAV:if(odirs[FCEUIOD_NV])
202 asprintf(&ret,"%s"PSS"%s.%s",odirs[FCEUIOD_NV],FileBase,cd1);
203 else
204 asprintf(&ret,"%s"PSS"sav"PSS"%s.%s",BaseDirectory,FileBase,cd1);
205 break;
206 case FCEUMKF_CHEAT:
207 if(odirs[FCEUIOD_CHEATS])
208 asprintf(&ret,"%s"PSS"%s.cht",odirs[FCEUIOD_CHEATS],FileBase);
209 else
210 asprintf(&ret,"%s"PSS"cheats"PSS"%s.cht",BaseDirectory,FileBase);
211 break;
212 case FCEUMKF_IPS: asprintf(&ret,"%s"PSS"%s%s.ips",FileBaseDirectory,FileBase,FileExt);
213 break;
214 case FCEUMKF_GGROM:asprintf(&ret,"%s"PSS"gg.rom",BaseDirectory);break;
215 case FCEUMKF_FDSROM:asprintf(&ret,"%s"PSS"disksys.rom",BaseDirectory);break;
216 case FCEUMKF_PALETTE:
217 if(odirs[FCEUIOD_MISC])
218 asprintf(&ret,"%s"PSS"%s.pal",odirs[FCEUIOD_MISC],FileBase);
219 else
220 asprintf(&ret,"%s"PSS"pal"PSS"%s.pal",BaseDirectory,FileBase);
221 break;
222 case FCEUMKF_MOVIEGLOB:
223 if(odirs[FCEUIOD_MISC])
224// asprintf(&ret,"%s"PSS"%s*.fcm",odirs[FCEUIOD_MISC],FileBase);
225 asprintf(&ret,"%s"PSS"*.???",odirs[FCEUIOD_MISC]);
226 else
227// asprintf(&ret,"%s"PSS"fcs"PSS"%s*.fcm",BaseDirectory,FileBase);
228 asprintf(&ret,"%s"PSS"movie"PSS"*.???",BaseDirectory);
229 break;
230 case FCEUMKF_MOVIEGLOB2:
231 asprintf(&ret,"%s"PSS"*.???",BaseDirectory);
232 break;
233 case FCEUMKF_STATEGLOB:
234 if(odirs[FCEUIOD_STATE])
235 asprintf(&ret,"%s"PSS"%s*.fc?",odirs[FCEUIOD_STATE],FileBase);
236 else
237 asprintf(&ret,"%s"PSS"fcs"PSS"%s*.fc?",BaseDirectory,FileBase);
238 break;
239 }
240 return(ret);
241}
242
243void GetFileBase(const char *f)
244{
245 const char *tp1,*tp3;
246
247 #if PSS_STYLE==4
248 tp1=((char *)strrchr(f,':'));
249 #elif PSS_STYLE==1
250 tp1=((char *)strrchr(f,'/'));
251 #else
252 tp1=((char *)strrchr(f,'\\'));
253 #if PSS_STYLE!=3
254 tp3=((char *)strrchr(f,'/'));
255 if(tp1<tp3) tp1=tp3;
256 #endif
257 #endif
258 if(!tp1)
259 {
260 tp1=f;
261 strcpy(FileBaseDirectory,".");
262 }
263 else
264 {
265 memcpy(FileBaseDirectory,f,tp1-f);
266 FileBaseDirectory[tp1-f]=0;
267 tp1++;
268 }
269
270 if(((tp3=strrchr(f,'.'))!=NULL) && (tp3>tp1))
271 {
272 memcpy(FileBase,tp1,tp3-tp1);
273 FileBase[tp3-tp1]=0;
274 strcpy(FileExt,tp3);
275 }
276 else
277 {
278 strcpy(FileBase,tp1);
279 FileExt[0]=0;
280 }
281}
282
283uint32 uppow2(uint32 n)
284{
285 int x;
286
287 for(x=31;x>=0;x--)
288 if(n&(1<<x))
289 {
290 if((1<<x)!=n)
291 return(1<<(x+1));
292 break;
293 }
294 return n;
295}
296
ARM optimized FCE Ultra port