Mercurial > sdl-ios-xcode

comparison src/cdrom/dc/SDL_syscdrom.c @ 509:dad72daf44b3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added initial support for Dreamcast (thanks HERO!)
author Sam Lantinga <slouken@libsdl.org>
date Sat, 05 Oct 2002 16:50:56 +0000
parents
children b8d311d90021
comparison
equal deleted inserted replaced
508:9ff7e90aaa94 509:dad72daf44b3
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 BERO
20 bero@geocities.co.jp
21
22 based on win32/SDL_syscdrom.c by
23
24 Sam Lantinga
25 slouken@libsdl.org
26 */
27
28 #ifdef SAVE_RCSID
29 static char rcsid =
30 "@(#) $Id$";
31 #endif
32
33 /* Functions for system-level CD-ROM audio control */
34
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <dc/cdrom.h>
38 #include <dc/spu.h>
39
40 #include "SDL_error.h"
41 #include "SDL_cdrom.h"
42 #include "SDL_syscdrom.h"
43
44 /* The system-dependent CD control functions */
45 static const char *SDL_SYS_CDName(int drive);
46 static int SDL_SYS_CDOpen(int drive);
47 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
48 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
49 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
50 static int SDL_SYS_CDPause(SDL_CD *cdrom);
51 static int SDL_SYS_CDResume(SDL_CD *cdrom);
52 static int SDL_SYS_CDStop(SDL_CD *cdrom);
53 static int SDL_SYS_CDEject(SDL_CD *cdrom);
54 static void SDL_SYS_CDClose(SDL_CD *cdrom);
55
56
57 int SDL_SYS_CDInit(void)
58 {
59 /* Fill in our driver capabilities */
60 SDL_CDcaps.Name = SDL_SYS_CDName;
61 SDL_CDcaps.Open = SDL_SYS_CDOpen;
62 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
63 SDL_CDcaps.Status = SDL_SYS_CDStatus;
64 SDL_CDcaps.Play = SDL_SYS_CDPlay;
65 SDL_CDcaps.Pause = SDL_SYS_CDPause;
66 SDL_CDcaps.Resume = SDL_SYS_CDResume;
67 SDL_CDcaps.Stop = SDL_SYS_CDStop;
68 SDL_CDcaps.Eject = SDL_SYS_CDEject;
69 SDL_CDcaps.Close = SDL_SYS_CDClose;
70
71 return(0);
72 }
73
74 static const char *SDL_SYS_CDName(int drive)
75 {
76 return "/cd";
77 }
78
79 static int SDL_SYS_CDOpen(int drive)
80 {
81 return(drive);
82 }
83
84 #define TRACK_CDDA 0
85 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
86 {
87 CDROM_TOC toc;
88 int ret,i;
89
90 ret = cdrom_read_toc(&toc,0);
91 if (ret!=ERR_OK) {
92 return -1;
93 }
94
95 cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1;
96 for(i=0;i<cdrom->numtracks;i++) {
97 unsigned long entry = toc.entry[i];
98 cdrom->track[i].id = i+1;
99 cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK;
100 cdrom->track[i].offset = TOC_LBA(entry)-150;
101 cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.dunno)-TOC_LBA(entry);
102 }
103
104 return 0;
105 }
106
107 /* Get CD-ROM status */
108 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
109 {
110 CDstatus status;
111 int ret,dc_status,disc_type;
112
113 ret = cdrom_get_status(&dc_status,&disc_type);
114 if (ret!=ERR_OK) return CD_ERROR;
115
116 switch(dc_status) {
117 // case CD_STATUS_BUSY:
118 case CD_STATUS_PAUSED:
119 return CD_PAUSED;
120 case CD_STATUS_STANDBY:
121 return CD_STOPPED;
122 case CD_STATUS_PLAYING:
123 return CD_PLAYING;
124 // case CD_STATUS_SEEKING:
125 // case CD_STATUS_SCANING:
126 case CD_STATUS_OPEN:
127 case CD_STATUS_NO_DISC:
128 return CD_TRAYEMPTY;
129 default:
130 return CD_ERROR;
131 }
132 }
133
134 /* Start play */
135 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
136 {
137 int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS);
138 return ret==ERR_OK?0:-1;
139 }
140
141 /* Pause play */
142 static int SDL_SYS_CDPause(SDL_CD *cdrom)
143 {
144 int ret=cdrom_cdda_pause();
145 return ret==ERR_OK?0:-1;
146 }
147
148 /* Resume play */
149 static int SDL_SYS_CDResume(SDL_CD *cdrom)
150 {
151 int ret=cdrom_cdda_resume();
152 return ret==ERR_OK?0:-1;
153 }
154
155 /* Stop play */
156 static int SDL_SYS_CDStop(SDL_CD *cdrom)
157 {
158 int ret=cdrom_spin_down();
159 return ret==ERR_OK?0:-1;
160 }
161
162 /* Eject the CD-ROM */
163 static int SDL_SYS_CDEject(SDL_CD *cdrom)
164 {
165 return -1;
166 }
167
168 /* Close the CD-ROM handle */
169 static void SDL_SYS_CDClose(SDL_CD *cdrom)
170 {
171 }
172
173 void SDL_SYS_CDQuit(void)
174 {
175
176 }