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annotate src/cdrom/mint/SDL_syscdrom.c @ 2690:ca01c20274c0 gsoc2008_nds

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More work and some bugfixes on the graphics driver.
author Darren Alton <dalton@stevens.edu>
date Sat, 16 Aug 2008 07:44:35 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifdef SDL_CDROM_MINT
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25
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26 /*
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27 Atari MetaDOS CD-ROM functions
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28
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29 Patrice Mandin
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30 */
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31
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32 #include <errno.h>
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33
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34 #include <cdromio.h>
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35 #include <metados.h>
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36
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37 #include "SDL_cdrom.h"
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38 #include "../SDL_syscdrom.h"
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39
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40 /* Some ioctl() errno values which occur when the tray is empty */
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41 #ifndef ENOMEDIUM
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42 #define ENOMEDIUM ENOENT
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43 #endif
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44 #define ERRNO_TRAYEMPTY(errno) \
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45 ((errno == EIO) || (errno == ENOENT) || \
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46 (errno == EINVAL) || (errno == ENOMEDIUM))
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47
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48 /* The maximum number of CD-ROM drives we'll detect */
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49 #define MAX_DRIVES 32
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50
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51 typedef struct
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52 {
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53 unsigned char device[3]; /* Physical device letter + ':' + '\0' */
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54 metaopen_t metaopen; /* Infos on opened drive */
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55 } metados_drive_t;
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56
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57 static metados_drive_t metados_drives[MAX_DRIVES];
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58
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59 /* The system-dependent CD control functions */
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60 static const char *SDL_SYS_CDName(int drive);
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61 static int SDL_SYS_CDOpen(int drive);
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62 static void SDL_SYS_CDClose(SDL_CD * cdrom);
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63 static int SDL_SYS_CDioctl(int id, int command, void *arg);
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64 static int SDL_SYS_CDGetTOC(SDL_CD * cdrom);
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65 static CDstatus SDL_SYS_CDStatus(SDL_CD * cdrom, int *position);
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66 static int SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length);
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67 static int SDL_SYS_CDPause(SDL_CD * cdrom);
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68 static int SDL_SYS_CDResume(SDL_CD * cdrom);
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69 static int SDL_SYS_CDStop(SDL_CD * cdrom);
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70 static int SDL_SYS_CDEject(SDL_CD * cdrom);
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71
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72 int
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73 SDL_SYS_CDInit(void)
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74 {
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75 metainit_t metainit = { 0, 0, 0, 0 };
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76 metaopen_t metaopen;
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77 int i, handle;
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78 struct cdrom_subchnl info;
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79
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80 Metainit(&metainit);
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81 if (metainit.version == NULL) {
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82 #ifdef DEBUG_CDROM
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83 fprintf(stderr, "MetaDOS not installed\n");
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84 #endif
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85 return -1;
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86 }
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87
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88 if (metainit.drives_map == 0) {
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89 #ifdef DEBUG_CDROM
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90 fprintf(stderr, "No MetaDOS devices present\n");
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91 #endif
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92 return -1;
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93 }
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94
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95 SDL_numcds = 0;
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96
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97 for (i = 'A'; i <= 'Z'; i++) {
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98 metados_drives[SDL_numcds].device[0] = 0;
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99 metados_drives[SDL_numcds].device[1] = ':';
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100 metados_drives[SDL_numcds].device[2] = 0;
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101
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102 if (metainit.drives_map & (1 << (i - 'A'))) {
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103 handle = Metaopen(i, &metaopen);
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104 if (handle == 0) {
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105
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106 info.cdsc_format = CDROM_MSF;
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107 if ((Metaioctl
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108 (i, METADOS_IOCTL_MAGIC, CDROMSUBCHNL, &info) == 0)
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109 || ERRNO_TRAYEMPTY(errno)) {
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110 metados_drives[SDL_numcds].device[0] = i;
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111 ++SDL_numcds;
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112 }
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113
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114 Metaclose(i);
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115 }
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116 }
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117 }
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118
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119 /* Fill in our driver capabilities */
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120 SDL_CDcaps.Name = SDL_SYS_CDName;
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121 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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122 SDL_CDcaps.Close = SDL_SYS_CDClose;
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123
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124 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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125 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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126 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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127 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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128 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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129 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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130 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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131
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132 return 0;
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133 }
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134
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
135 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
136 SDL_SYS_CDQuit(void)
724
6b3dfe0198bb Atari CD-ROM support
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diff changeset
137 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
138 SDL_numcds = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
139 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
140
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
141 static const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
142 SDL_SYS_CDName(int drive)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
143 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
144 return (metados_drives[drive].device);
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
145 }
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
146
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
147 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
148 SDL_SYS_CDOpen(int drive)
724
6b3dfe0198bb Atari CD-ROM support
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diff changeset
149 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
150 int handle;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1635
diff changeset
151
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
152 handle =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
153 Metaopen(metados_drives[drive].device[0],
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
154 &(metados_drives[drive].metaopen));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
155 if (handle == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
156 return drive;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
157 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
158
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
159 return -1;
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
160 }
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
161
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
162 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
163 SDL_SYS_CDClose(SDL_CD * cdrom)
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
164 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
165 Metaclose(metados_drives[cdrom->id].device[0]);
724
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
166 }
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
167
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
168 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
169 SDL_SYS_CDioctl(int id, int command, void *arg)
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
170 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
171 int retval;
724
6b3dfe0198bb Atari CD-ROM support
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diff changeset
172
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
173 retval =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
174 Metaioctl(metados_drives[id].device[0], METADOS_IOCTL_MAGIC, command,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
175 arg);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
176 if (retval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
177 SDL_SetError("ioctl() error: %s", strerror(errno));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
178 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
179 return (retval);
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
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diff changeset
180 }
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
181
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
182 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
183 SDL_SYS_CDGetTOC(SDL_CD * cdrom)
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
184 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
185 int i, okay;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
186 struct cdrom_tochdr toc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
187 struct cdrom_tocentry entry;
724
6b3dfe0198bb Atari CD-ROM support
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diff changeset
188
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
189 /* Use standard ioctl() */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
190 if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
191 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
192 }
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
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diff changeset
193
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
194 cdrom->numtracks = toc.cdth_trk1 - toc.cdth_trk0 + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
195 if (cdrom->numtracks > SDL_MAX_TRACKS) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
196 cdrom->numtracks = SDL_MAX_TRACKS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
197 }
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
198
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
199 /* Read all the track TOC entries */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
200 okay = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
201 for (i = 0; i <= cdrom->numtracks; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
202 if (i == cdrom->numtracks) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
203 cdrom->track[i].id = CDROM_LEADOUT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
204 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
205 cdrom->track[i].id = toc.cdth_trk0 + i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
206 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
207 entry.cdte_track = cdrom->track[i].id;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
208 entry.cdte_format = CDROM_MSF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
209 if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCENTRY, &entry) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
210 okay = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
211 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
212 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
213 if (entry.cdte_ctrl & CDROM_DATA_TRACK) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
214 cdrom->track[i].type = SDL_DATA_TRACK;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
215 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
216 cdrom->track[i].type = SDL_AUDIO_TRACK;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
217 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
218 cdrom->track[i].offset =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
219 MSF_TO_FRAMES(entry.cdte_addr.msf.minute,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
220 entry.cdte_addr.msf.second,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
221 entry.cdte_addr.msf.frame);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
222 cdrom->track[i].length = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
223 if (i > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
224 cdrom->track[i - 1].length =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
225 cdrom->track[i].offset - cdrom->track[i - 1].offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
226 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
227 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
228 }
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
229
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
230 return (okay ? 0 : -1);
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
231 }
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
232
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
233 /* Get CD-ROM status */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
234 static CDstatus
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
235 SDL_SYS_CDStatus(SDL_CD * cdrom, int *position)
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
236 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
237 CDstatus status;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
238 struct cdrom_tochdr toc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
239 struct cdrom_subchnl info;
724
6b3dfe0198bb Atari CD-ROM support
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
240
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
241 info.cdsc_format = CDROM_MSF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
242 if (SDL_SYS_CDioctl(cdrom->id, CDROMSUBCHNL, &info) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
243 if (ERRNO_TRAYEMPTY(errno)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
244 status = CD_TRAYEMPTY;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
245 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
246 status = CD_ERROR;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
247 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
248 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
249 switch (info.cdsc_audiostatus) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
250 case CDROM_AUDIO_INVALID:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
251 case CDROM_AUDIO_NO_STATUS:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
252 /* Try to determine if there's a CD available */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
253 if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
254 status = CD_STOPPED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
255 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
256 status = CD_TRAYEMPTY;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
257 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
258 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
259 case CDROM_AUDIO_COMPLETED:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
260 status = CD_STOPPED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
261 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
262 case CDROM_AUDIO_PLAY:
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263 status = CD_PLAYING;
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264 break;
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265 case CDROM_AUDIO_PAUSED:
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266 /* Workaround buggy CD-ROM drive */
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267 if (info.cdsc_trk == CDROM_LEADOUT) {
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268 status = CD_STOPPED;
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269 } else {
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270 status = CD_PAUSED;
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271 }
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272 break;
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273 default:
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274 status = CD_ERROR;
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275 break;
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276 }
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277 }
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278 if (position) {
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279 if (status == CD_PLAYING || (status == CD_PAUSED)) {
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280 *position = MSF_TO_FRAMES(info.cdsc_absaddr.msf.minute,
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281 info.cdsc_absaddr.msf.second,
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282 info.cdsc_absaddr.msf.frame);
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283 } else {
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284 *position = 0;
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285 }
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286 }
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287 return (status);
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288 }
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289
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290 /* Start play */
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291 static int
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292 SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length)
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293 {
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294 struct cdrom_msf playtime;
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295
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296 FRAMES_TO_MSF(start,
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297 &playtime.cdmsf_min0, &playtime.cdmsf_sec0,
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298 &playtime.cdmsf_frame0);
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299 FRAMES_TO_MSF(start + length, &playtime.cdmsf_min1, &playtime.cdmsf_sec1,
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300 &playtime.cdmsf_frame1);
724
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diff changeset
301 #ifdef DEBUG_CDROM
1895
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302 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n",
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303 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0,
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304 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1);
724
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diff changeset
305 #endif
727
cb1208fcd946 Update MiNT CD-ROM driver
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diff changeset
306
1895
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307 return SDL_SYS_CDioctl(cdrom->id, CDROMPLAYMSF, &playtime);
724
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308 }
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309
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diff changeset
310 /* Pause play */
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diff changeset
311 static int
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diff changeset
312 SDL_SYS_CDPause(SDL_CD * cdrom)
724
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diff changeset
313 {
1895
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314 return SDL_SYS_CDioctl(cdrom->id, CDROMPAUSE, 0);
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diff changeset
315 }
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parents:
diff changeset
316
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diff changeset
317 /* Resume play */
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318 static int
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diff changeset
319 SDL_SYS_CDResume(SDL_CD * cdrom)
724
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diff changeset
320 {
1895
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diff changeset
321 return SDL_SYS_CDioctl(cdrom->id, CDROMRESUME, 0);
724
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diff changeset
322 }
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parents:
diff changeset
323
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parents:
diff changeset
324 /* Stop play */
1895
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diff changeset
325 static int
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
326 SDL_SYS_CDStop(SDL_CD * cdrom)
724
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
327 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
328 return SDL_SYS_CDioctl(cdrom->id, CDROMSTOP, 0);
724
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
329 }
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
330
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
331 /* Eject the CD-ROM */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
332 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
333 SDL_SYS_CDEject(SDL_CD * cdrom)
724
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
334 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
335 return SDL_SYS_CDioctl(cdrom->id, CDROMEJECT, 0);
724
6b3dfe0198bb Atari CD-ROM support
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parents:
diff changeset
336 }
1635
92947e3a18db Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
337
92947e3a18db Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
338 #endif /* SDL_CDROM_MINT */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
339 /* vi: set ts=4 sw=4 expandtab: */