/
SDL_syscdrom.c
164 lines (136 loc) · 3.92 KB
/
SDL_syscdrom.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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
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
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Functions for system-level CD-ROM audio control */
#include <dc/cdrom.h>
#include <dc/spu.h>
#include "SDL_cdrom.h"
#include "../SDL_syscdrom.h"
/* The system-dependent CD control functions */
static const char *SDL_SYS_CDName(int drive);
static int SDL_SYS_CDOpen(int drive);
static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
static int SDL_SYS_CDPause(SDL_CD *cdrom);
static int SDL_SYS_CDResume(SDL_CD *cdrom);
static int SDL_SYS_CDStop(SDL_CD *cdrom);
static int SDL_SYS_CDEject(SDL_CD *cdrom);
static void SDL_SYS_CDClose(SDL_CD *cdrom);
int SDL_SYS_CDInit(void)
{
/* Fill in our driver capabilities */
SDL_CDcaps.Name = SDL_SYS_CDName;
SDL_CDcaps.Open = SDL_SYS_CDOpen;
SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
SDL_CDcaps.Status = SDL_SYS_CDStatus;
SDL_CDcaps.Play = SDL_SYS_CDPlay;
SDL_CDcaps.Pause = SDL_SYS_CDPause;
SDL_CDcaps.Resume = SDL_SYS_CDResume;
SDL_CDcaps.Stop = SDL_SYS_CDStop;
SDL_CDcaps.Eject = SDL_SYS_CDEject;
SDL_CDcaps.Close = SDL_SYS_CDClose;
return(0);
}
static const char *SDL_SYS_CDName(int drive)
{
return "/cd";
}
static int SDL_SYS_CDOpen(int drive)
{
return(drive);
}
#define TRACK_CDDA 0
static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
{
CDROM_TOC toc;
int ret,i;
ret = cdrom_read_toc(&toc,0);
if (ret!=ERR_OK) {
return -1;
}
cdrom->numtracks = TOC_TRACK(toc.last)-TOC_TRACK(toc.first)+1;
for(i=0;i<cdrom->numtracks;i++) {
unsigned long entry = toc.entry[i];
cdrom->track[i].id = i+1;
cdrom->track[i].type = (TOC_CTRL(toc.entry[i])==TRACK_CDDA)?SDL_AUDIO_TRACK:SDL_DATA_TRACK;
cdrom->track[i].offset = TOC_LBA(entry)-150;
cdrom->track[i].length = TOC_LBA((i+1<toc.last)?toc.entry[i+1]:toc.dunno)-TOC_LBA(entry);
}
return 0;
}
/* Get CD-ROM status */
static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
{
CDstatus status;
int ret,dc_status,disc_type;
ret = cdrom_get_status(&dc_status,&disc_type);
if (ret!=ERR_OK) return CD_ERROR;
switch(dc_status) {
// case CD_STATUS_BUSY:
case CD_STATUS_PAUSED:
return CD_PAUSED;
case CD_STATUS_STANDBY:
return CD_STOPPED;
case CD_STATUS_PLAYING:
return CD_PLAYING;
// case CD_STATUS_SEEKING:
// case CD_STATUS_SCANING:
case CD_STATUS_OPEN:
case CD_STATUS_NO_DISC:
return CD_TRAYEMPTY;
default:
return CD_ERROR;
}
}
/* Start play */
static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
{
int ret = cdrom_cdda_play(start-150,start-150+length,1,CDDA_SECTORS);
return ret==ERR_OK?0:-1;
}
/* Pause play */
static int SDL_SYS_CDPause(SDL_CD *cdrom)
{
int ret=cdrom_cdda_pause();
return ret==ERR_OK?0:-1;
}
/* Resume play */
static int SDL_SYS_CDResume(SDL_CD *cdrom)
{
int ret=cdrom_cdda_resume();
return ret==ERR_OK?0:-1;
}
/* Stop play */
static int SDL_SYS_CDStop(SDL_CD *cdrom)
{
int ret=cdrom_spin_down();
return ret==ERR_OK?0:-1;
}
/* Eject the CD-ROM */
static int SDL_SYS_CDEject(SDL_CD *cdrom)
{
return -1;
}
/* Close the CD-ROM handle */
static void SDL_SYS_CDClose(SDL_CD *cdrom)
{
}
void SDL_SYS_CDQuit(void)
{
}