annotate src/cdrom/freebsd/SDL_syscdrom.c @ 1438:1f4f09641645

Date: Sun, 26 Feb 2006 11:25:09 +0900 From: Hayashi Naoyuki Subject: Re: [SDL] CVS stable again, please update SDL ports Some problems are caused on Tru64 UNIX. If applying SDL12-osf1.path, these problems are fixed. 1. configure-script say "recursive mutexes... no" and "pthread semaphores... no". checking for pthreads... yes checking for recursive mutexes... no checking for pthread semaphores... no This is because it compiled without pthread_cflags and pthread_lib when checking recursive mutexes and pthread semaphores. 2. Compiling src/audio/mme/SDL_mmeaudio.c fails. cc: Severe: ./src/audio/mme/SDL_mmeaudio.c, line 25: Cannot find file <mme_api.h> specified in #include directive. (noinclfilef) #include <mme_api.h> -^ This is because BUILD_CFLAGS is wrong. 3. Compiling src/cdrom/osf/SDL_syscdrom.c fails. cc: Warning: ./src/cdrom/osf/SDL_syscdrom.c, line 176: Too few actual parameters in the invocation of the macro "SDL_stack_alloc". (toofewactuals) cdpath = SDL_stack_alloc(len); ------------------------------------^ cc: Error: ./src/cdrom/osf/SDL_syscdrom.c, line 176: Invalid expression. (badexpr) cdpath = SDL_stack_alloc(len); -----------------^ SDL_stack_alloc is defined in include/SDL_stdinc.h. #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*count) 4. Linking fails if running configure with --enable-x11-shared=yes. /usr/ccs/bin/ld: Warning: Unresolved: p_XData32 5. Compiling src/video/x11/SDL_x11dyn.c fails if running configure with --enable-x11-shared=no. cc: Error: ./src/video/x11/SDL_x11sym.h, line 149: In this statement, "_SmtBufferOverflow" is not declared. (undeclared) SDL_X11_SYM(1,void,_SmtBufferOverflow,(Display *dpy,register smtDisplayPtr)) ^ cc: Error: ./src/video/x11/SDL_x11sym.h, line 150: In this statement, "_SmtBufferOverflow" is not declared. (undeclared) SDL_X11_SYM(1,void,_SmtBufferOverflow,(Display *dpy,register smtDisplayPtr)) ^ cc: Error: ./src/video/x11/SDL_x11sym.h, line 150: In this statement, "_SmtIpError" is not declared. (undeclared) SDL_X11_SYM(1,void,_SmtIpError,(Display *dpy,register smtDisplayPtr, int)) ^
author Sam Lantinga <slouken@libsdl.org>
date Sun, 26 Feb 2006 04:54:01 +0000
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children 92947e3a18db
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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 /* Functions for system-level CD-ROM audio control */
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25
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26 #include <sys/types.h>
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27 #include <sys/stat.h>
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28 #include <fcntl.h>
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29 #include <errno.h>
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30 #include <unistd.h>
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31 #include <sys/cdio.h>
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32
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33 #include "SDL_cdrom.h"
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34 #include "../SDL_syscdrom.h"
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35
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36
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37 /* The maximum number of CD-ROM drives we'll detect */
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38 #define MAX_DRIVES 16
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39
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40 /* A list of available CD-ROM drives */
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41 static char *SDL_cdlist[MAX_DRIVES];
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42 static dev_t SDL_cdmode[MAX_DRIVES];
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43
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44 /* The system-dependent CD control functions */
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45 static const char *SDL_SYS_CDName(int drive);
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46 static int SDL_SYS_CDOpen(int drive);
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47 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
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48 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
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49 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
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50 static int SDL_SYS_CDPause(SDL_CD *cdrom);
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51 static int SDL_SYS_CDResume(SDL_CD *cdrom);
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52 static int SDL_SYS_CDStop(SDL_CD *cdrom);
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53 static int SDL_SYS_CDEject(SDL_CD *cdrom);
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54 static void SDL_SYS_CDClose(SDL_CD *cdrom);
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55
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56 /* Some ioctl() errno values which occur when the tray is empty */
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57 #define ERRNO_TRAYEMPTY(errno) \
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58 ((errno == EIO) || (errno == ENOENT) || (errno == EINVAL))
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59
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60 /* Check a drive to see if it is a CD-ROM */
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61 static int CheckDrive(char *drive, struct stat *stbuf)
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62 {
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63 int is_cd, cdfd;
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64 struct ioc_read_subchannel info;
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65
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66 /* If it doesn't exist, return -1 */
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67 if ( stat(drive, stbuf) < 0 ) {
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68 return(-1);
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69 }
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70
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71 /* If it does exist, verify that it's an available CD-ROM */
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72 is_cd = 0;
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73 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) {
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74 cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0);
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75 if ( cdfd >= 0 ) {
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76 info.address_format = CD_MSF_FORMAT;
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77 info.data_format = CD_CURRENT_POSITION;
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78 info.data_len = 0;
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79 info.data = NULL;
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80 /* Under Linux, EIO occurs when a disk is not present.
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81 This isn't 100% reliable, so we use the USE_MNTENT
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82 code above instead.
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83 */
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84 if ( (ioctl(cdfd, CDIOCREADSUBCHANNEL, &info) == 0) ||
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85 ERRNO_TRAYEMPTY(errno) ) {
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86 is_cd = 1;
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87 }
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88 close(cdfd);
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89 }
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90 }
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91 return(is_cd);
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92 }
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93
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94 /* Add a CD-ROM drive to our list of valid drives */
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95 static void AddDrive(char *drive, struct stat *stbuf)
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96 {
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97 int i;
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98
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99 if ( SDL_numcds < MAX_DRIVES ) {
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100 /* Check to make sure it's not already in our list.
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101 This can happen when we see a drive via symbolic link.
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102 */
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103 for ( i=0; i<SDL_numcds; ++i ) {
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104 if ( stbuf->st_rdev == SDL_cdmode[i] ) {
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105 #ifdef DEBUG_CDROM
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106 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
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107 #endif
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108 return;
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109 }
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110 }
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111
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112 /* Add this drive to our list */
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113 i = SDL_numcds;
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114 SDL_cdlist[i] = SDL_strdup(drive);
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115 if ( SDL_cdlist[i] == NULL ) {
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116 SDL_OutOfMemory();
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117 return;
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118 }
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119 SDL_cdmode[i] = stbuf->st_rdev;
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120 ++SDL_numcds;
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121 #ifdef DEBUG_CDROM
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122 fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
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123 #endif
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124 }
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125 }
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126
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127 int SDL_SYS_CDInit(void)
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128 {
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129 /* checklist: /dev/cdrom,/dev/cd?c /dev/acd?c
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130 /dev/matcd?c /dev/mcd?c /dev/scd?c */
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131 static char *checklist[] = {
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132 "cdrom", "?0 cd?", "?0 acd?", "?0 matcd?", "?0 mcd?", "?0 scd?",NULL
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133 };
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134 char *SDLcdrom;
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135 int i, j, exists;
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136 char drive[32];
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137 struct stat stbuf;
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138
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139 /* Fill in our driver capabilities */
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140 SDL_CDcaps.Name = SDL_SYS_CDName;
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141 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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142 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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143 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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144 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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145 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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146 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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parents:
diff changeset
147 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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parents:
diff changeset
148 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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parents:
diff changeset
149 SDL_CDcaps.Close = SDL_SYS_CDClose;
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parents:
diff changeset
150
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parents:
diff changeset
151 /* Look in the environment for our CD-ROM drive list */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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parents: 1312
diff changeset
152 SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */
0
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parents:
diff changeset
153 if ( SDLcdrom != NULL ) {
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parents:
diff changeset
154 char *cdpath, *delim;
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
155 size_t len = SDL_strlen(SDLcdrom)+1;
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
156 cdpath = SDL_stack_alloc(char, len);
0
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parents:
diff changeset
157 if ( cdpath != NULL ) {
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
158 SDL_strlcpy(cdpath, SDLcdrom, len);
0
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parents:
diff changeset
159 SDLcdrom = cdpath;
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parents:
diff changeset
160 do {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
161 delim = SDL_strchr(SDLcdrom, ':');
0
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parents:
diff changeset
162 if ( delim ) {
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parents:
diff changeset
163 *delim++ = '\0';
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
164 }
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parents:
diff changeset
165 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
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parents:
diff changeset
166 AddDrive(SDLcdrom, &stbuf);
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parents:
diff changeset
167 }
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parents:
diff changeset
168 if ( delim ) {
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parents:
diff changeset
169 SDLcdrom = delim;
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parents:
diff changeset
170 } else {
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parents:
diff changeset
171 SDLcdrom = NULL;
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parents:
diff changeset
172 }
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parents:
diff changeset
173 } while ( SDLcdrom );
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
174 SDL_stack_free(cdpath);
0
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parents:
diff changeset
175 }
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parents:
diff changeset
176
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parents:
diff changeset
177 /* If we found our drives, there's nothing left to do */
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parents:
diff changeset
178 if ( SDL_numcds > 0 ) {
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parents:
diff changeset
179 return(0);
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parents:
diff changeset
180 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182
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parents:
diff changeset
183 /* Scan the system for CD-ROM drives */
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parents:
diff changeset
184 for ( i=0; checklist[i]; ++i ) {
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parents:
diff changeset
185 if ( checklist[i][0] == '?' ) {
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parents:
diff changeset
186 char *insert;
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parents:
diff changeset
187 exists = 1;
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parents:
diff changeset
188 for ( j=checklist[i][1]; exists; ++j ) {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
189 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%sc", &checklist[i][3]);
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
190 insert = SDL_strchr(drive, '?');
0
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parents:
diff changeset
191 if ( insert != NULL ) {
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parents:
diff changeset
192 *insert = j;
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parents:
diff changeset
193 }
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parents:
diff changeset
194 switch (CheckDrive(drive, &stbuf)) {
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parents:
diff changeset
195 /* Drive exists and is a CD-ROM */
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parents:
diff changeset
196 case 1:
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parents:
diff changeset
197 AddDrive(drive, &stbuf);
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parents:
diff changeset
198 break;
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parents:
diff changeset
199 /* Drive exists, but isn't a CD-ROM */
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parents:
diff changeset
200 case 0:
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parents:
diff changeset
201 break;
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parents:
diff changeset
202 /* Drive doesn't exist */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203 case -1:
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parents:
diff changeset
204 exists = 0;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 } else {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
209 SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", checklist[i]);
0
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 if ( CheckDrive(drive, &stbuf) > 0 ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211 AddDrive(drive, &stbuf);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 return(0);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217
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parents:
diff changeset
218 /* General ioctl() CD-ROM command function */
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parents:
diff changeset
219 static int SDL_SYS_CDioctl(int id, int command, void *arg)
74212992fb08 Initial revision
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parents:
diff changeset
220 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 int retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
222
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parents:
diff changeset
223 retval = ioctl(id, command, arg);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 if ( retval < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 SDL_SetError("ioctl() error: %s", strerror(errno));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
229
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 static const char *SDL_SYS_CDName(int drive)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
231 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 return(SDL_cdlist[drive]);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 static int SDL_SYS_CDOpen(int drive)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 return(open(SDL_cdlist[drive], (O_RDONLY|O_EXCL|O_NONBLOCK), 0));
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 int i, okay;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 struct ioc_read_toc_entry entry;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 struct cd_toc_entry data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 okay = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCHEADER, &toc) == 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 cdrom->numtracks = toc.ending_track-toc.starting_track+1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 cdrom->numtracks = SDL_MAX_TRACKS;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253 /* Read all the track TOC entries */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 for ( i=0; i<=cdrom->numtracks; ++i ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 if ( i == cdrom->numtracks ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 cdrom->track[i].id = 0xAA; /* CDROM_LEADOUT */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 cdrom->track[i].id = toc.starting_track+i;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 entry.starting_track = cdrom->track[i].id;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 entry.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 entry.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 entry.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCENTRYS,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 &entry) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 cdrom->track[i].type = data.control;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 cdrom->track[i].offset = MSF_TO_FRAMES(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 data.addr.msf.minute,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 data.addr.msf.second,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 data.addr.msf.frame);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 cdrom->track[i].length = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 if ( i > 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 cdrom->track[i-1].length =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 cdrom->track[i].offset-
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 cdrom->track[i-1].offset;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 if ( i == (cdrom->numtracks+1) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 okay = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 return(okay ? 0 : -1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 /* Get CD-ROM status */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 CDstatus status;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 struct ioc_toc_header toc;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 struct ioc_read_subchannel info;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 struct cd_sub_channel_info data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 info.address_format = CD_MSF_FORMAT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 info.data_format = CD_CURRENT_POSITION;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 info.track = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 info.data_len = sizeof(data);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 info.data = &data;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 if ( ioctl(cdrom->id, CDIOCREADSUBCHANNEL, &info) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302 if ( ERRNO_TRAYEMPTY(errno) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 status = CD_TRAYEMPTY;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305 status = CD_ERROR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 switch (data.header.audio_status) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 case CD_AS_AUDIO_INVALID:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 case CD_AS_NO_STATUS:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 /* Try to determine if there's a CD available */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 if (ioctl(cdrom->id,CDIOREADTOCHEADER,&toc)==0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 status = CD_STOPPED;
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314 else
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315 status = CD_TRAYEMPTY;
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316 break;
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317 case CD_AS_PLAY_COMPLETED:
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318 status = CD_STOPPED;
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319 break;
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320 case CD_AS_PLAY_IN_PROGRESS:
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321 status = CD_PLAYING;
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322 break;
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323 case CD_AS_PLAY_PAUSED:
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324 status = CD_PAUSED;
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325 break;
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326 default:
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327 status = CD_ERROR;
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328 break;
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329 }
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330 }
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331 if ( position ) {
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332 if ( status == CD_PLAYING || (status == CD_PAUSED) ) {
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333 *position = MSF_TO_FRAMES(
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334 data.what.position.absaddr.msf.minute,
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335 data.what.position.absaddr.msf.second,
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336 data.what.position.absaddr.msf.frame);
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337 } else {
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338 *position = 0;
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339 }
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340 }
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341 return(status);
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342 }
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343
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344 /* Start play */
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345 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
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346 {
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347 struct ioc_play_msf playtime;
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348
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349 FRAMES_TO_MSF(start,
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350 &playtime.start_m, &playtime.start_s, &playtime.start_f);
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351 FRAMES_TO_MSF(start+length,
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352 &playtime.end_m, &playtime.end_s, &playtime.end_f);
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353 #ifdef DEBUG_CDROM
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354 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n",
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355 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0,
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parents:
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356 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1);
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parents:
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357 #endif
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358 ioctl(cdrom->id, CDIOCSTART, 0);
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359 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPLAYMSF, &playtime));
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360 }
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parents:
diff changeset
361
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parents:
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362 /* Pause play */
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parents:
diff changeset
363 static int SDL_SYS_CDPause(SDL_CD *cdrom)
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parents:
diff changeset
364 {
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365 return(SDL_SYS_CDioctl(cdrom->id, CDIOCPAUSE, 0));
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parents:
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366 }
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parents:
diff changeset
367
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parents:
diff changeset
368 /* Resume play */
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parents:
diff changeset
369 static int SDL_SYS_CDResume(SDL_CD *cdrom)
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parents:
diff changeset
370 {
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parents:
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371 return(SDL_SYS_CDioctl(cdrom->id, CDIOCRESUME, 0));
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parents:
diff changeset
372 }
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parents:
diff changeset
373
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parents:
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374 /* Stop play */
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parents:
diff changeset
375 static int SDL_SYS_CDStop(SDL_CD *cdrom)
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parents:
diff changeset
376 {
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parents:
diff changeset
377 return(SDL_SYS_CDioctl(cdrom->id, CDIOCSTOP, 0));
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parents:
diff changeset
378 }
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parents:
diff changeset
379
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parents:
diff changeset
380 /* Eject the CD-ROM */
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parents:
diff changeset
381 static int SDL_SYS_CDEject(SDL_CD *cdrom)
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parents:
diff changeset
382 {
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parents:
diff changeset
383 return(SDL_SYS_CDioctl(cdrom->id, CDIOCEJECT, 0));
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parents:
diff changeset
384 }
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parents:
diff changeset
385
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parents:
diff changeset
386 /* Close the CD-ROM handle */
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parents:
diff changeset
387 static void SDL_SYS_CDClose(SDL_CD *cdrom)
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parents:
diff changeset
388 {
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parents:
diff changeset
389 close(cdrom->id);
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parents:
diff changeset
390 }
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parents:
diff changeset
391
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parents:
diff changeset
392 void SDL_SYS_CDQuit(void)
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parents:
diff changeset
393 {
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parents:
diff changeset
394 int i;
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parents:
diff changeset
395
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parents:
diff changeset
396 if ( SDL_numcds > 0 ) {
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parents:
diff changeset
397 for ( i=0; i<SDL_numcds; ++i ) {
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
398 SDL_free(SDL_cdlist[i]);
0
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parents:
diff changeset
399 }
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parents:
diff changeset
400 SDL_numcds = 0;
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parents:
diff changeset
401 }
74212992fb08 Initial revision
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parents:
diff changeset
402 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403