Mercurial > sdl-ios-xcode
annotate src/cdrom/osf/SDL_syscdrom.c @ 738:82b85b731fe3
Date: Mon, 10 Nov 2003 19:57:56 +0100
From: Stephane Marchesin <stephane.marchesin@wanadoo.fr>
Subject: [SDL] SDL and gcc >= 3.3.1 fix
Lately, I upgraded my gcc compiler and could trigger the error described
in this thread :
http://www.libsdl.org/pipermail/sdl/2003-September/056163.html
SDL_RLEaccel.c: In function `RLEClipBlit':
SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand
SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand
SDL_RLEaccel.c:845: error: invalid `asm': invalid expression as operand
The attached patch fixes this issue, and is smaller than the previous
one, as I was able to trigger the issue, so I could narrow it.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Fri, 14 Nov 2003 20:21:22 +0000 |
parents | e92bcf2573cb |
children | 89666943c598 |
rev | line source |
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654
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1 /* |
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2 Tru64 audio module for SDL (Simple DirectMedia Layer) |
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3 Copyright (C) 2003 |
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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 |
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20 */ |
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21 |
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22 |
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23 /* Functions for system-level CD-ROM audio control */ |
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24 |
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25 //#define DEBUG_CDROM 1 |
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26 |
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27 #include <sys/types.h> |
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28 #include <sys/stat.h> |
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29 #include <fcntl.h> |
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30 #include <io/cam/cdrom.h> |
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31 #include <io/cam/rzdisk.h> |
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32 #include <io/common/devgetinfo.h> |
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33 #include <alloca.h> |
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34 #include <stdlib.h> |
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35 #include <stdio.h> |
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36 #include <string.h> |
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37 #include <errno.h> |
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38 |
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39 #include "SDL_error.h" |
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40 #include "SDL_cdrom.h" |
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41 #include "SDL_syscdrom.h" |
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42 |
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43 /* The maximum number of CD-ROM drives we'll detect */ |
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44 #define MAX_DRIVES 16 |
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45 |
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46 /* A list of available CD-ROM drives */ |
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47 static char *SDL_cdlist[MAX_DRIVES]; |
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48 static dev_t SDL_cdmode[MAX_DRIVES]; |
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49 |
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50 /* The system-dependent CD control functions */ |
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51 static const char *SDL_SYS_CDName(int drive); |
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52 static int SDL_SYS_CDOpen(int drive); |
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53 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); |
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54 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); |
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55 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); |
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56 static int SDL_SYS_CDPause(SDL_CD *cdrom); |
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57 static int SDL_SYS_CDResume(SDL_CD *cdrom); |
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58 static int SDL_SYS_CDStop(SDL_CD *cdrom); |
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59 static int SDL_SYS_CDEject(SDL_CD *cdrom); |
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60 static void SDL_SYS_CDClose(SDL_CD *cdrom); |
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61 |
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62 /* Some ioctl() errno values which occur when the tray is empty */ |
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63 #define ERRNO_TRAYEMPTY(errno) \ |
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64 ((errno == EIO) || (errno == ENOENT) || (errno == EINVAL)) |
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65 |
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66 /* Check a drive to see if it is a CD-ROM */ |
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67 /* Caution!! Not tested. */ |
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68 static int CheckDrive(char *drive, struct stat *stbuf) |
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69 { |
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70 int is_cd, cdfd; |
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71 struct cd_sub_channel info; |
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72 |
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73 /* If it doesn't exist, return -1 */ |
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74 if ( stat(drive, stbuf) < 0 ) { |
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75 return(-1); |
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76 } |
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77 |
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78 /* If it does exist, verify that it's an available CD-ROM */ |
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79 is_cd = 0; |
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80 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { |
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81 cdfd = open(drive, (O_RDWR|O_NDELAY), 0); |
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82 if ( cdfd >= 0 ) { |
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83 info.sch_address_format = CDROM_MSF_FORMAT; |
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84 info.sch_data_format = CDROM_CURRENT_POSITION; |
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85 info.sch_alloc_length = 0; |
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86 info.sch_track_number = 0; |
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87 info.sch_buffer = NULL; |
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88 /* |
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89 * |
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90 * Under Linux, EIO occurs when a disk is not present. |
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91 * This isn't 100% reliable, so we use the USE_MNTENT |
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92 * code above instead. |
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93 * |
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94 */ |
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95 if ( (ioctl(cdfd, CDROM_READ_SUBCHANNEL, &info) == 0) || |
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96 ERRNO_TRAYEMPTY(errno) ) { |
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97 is_cd = 1; |
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98 } |
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99 |
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100 close(cdfd); |
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101 } |
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102 } |
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103 |
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104 return(is_cd); |
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105 } |
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106 |
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107 /* Add a CD-ROM drive to our list of valid drives */ |
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108 static void AddDrive(char *drive, struct stat *stbuf) |
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109 { |
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110 int i; |
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111 |
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112 if ( SDL_numcds < MAX_DRIVES ) { |
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113 /* Check to make sure it's not already in our list. |
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114 * This can happen when we see a drive via symbolic link. |
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115 * |
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116 * / |
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117 for ( i=0; i<SDL_numcds; ++i ) { |
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118 if ( stbuf->st_rdev == SDL_cdmode[i] ) { |
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119 #ifdef DEBUG_CDROM |
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120 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); |
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121 #endif |
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122 return; |
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123 } |
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124 } |
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125 |
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126 /* Add this drive to our list */ |
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127 i = SDL_numcds; |
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128 SDL_cdlist[i] = (char *)malloc(strlen(drive)+1); |
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129 if ( SDL_cdlist[i] == NULL ) { |
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130 SDL_OutOfMemory(); |
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131 return; |
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132 } |
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133 |
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134 strcpy(SDL_cdlist[i], drive); |
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135 SDL_cdmode[i] = stbuf->st_rdev; |
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136 ++SDL_numcds; |
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137 #ifdef DEBUG_CDROM |
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138 fprintf(stderr, "Added CD-ROM drive: %s\n", drive); |
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139 #endif |
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140 } |
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141 } |
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142 |
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143 int SDL_SYS_CDInit(void) |
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144 { |
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145 /* checklist: /dev/cdrom,/dev/cd?c /dev/acd?c |
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146 * /dev/matcd?c /dev/mcd?c /dev/scd?c |
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147 * |
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148 */ |
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149 static char *checklist[] = { |
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150 "?0 rdisk/cdrom?",NULL}; |
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151 char drive[32]; |
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152 char *SDLcdrom; |
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153 int i, j, exists; |
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154 struct stat stbuf; |
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155 |
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156 /* Fill in our driver capabilities */ |
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157 SDL_CDcaps.Name = SDL_SYS_CDName; |
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158 SDL_CDcaps.Open = SDL_SYS_CDOpen; |
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159 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; |
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160 SDL_CDcaps.Status = SDL_SYS_CDStatus; |
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161 SDL_CDcaps.Play = SDL_SYS_CDPlay; |
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162 SDL_CDcaps.Pause = SDL_SYS_CDPause; |
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163 SDL_CDcaps.Resume = SDL_SYS_CDResume; |
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164 SDL_CDcaps.Stop = SDL_SYS_CDStop; |
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165 SDL_CDcaps.Eject = SDL_SYS_CDEject; |
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166 SDL_CDcaps.Close = SDL_SYS_CDClose; |
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167 |
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168 |
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169 /* Look in the environment for our CD-ROM drive list */ |
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170 SDLcdrom = getenv("SDL_CDROM"); /* ':' separated list of devices */ |
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171 if ( SDLcdrom != NULL ) { |
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172 char *cdpath, *delim; |
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173 cdpath = malloc(strlen(SDLcdrom)+1); |
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174 if ( cdpath != NULL ) { |
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175 strcpy(cdpath, SDLcdrom); |
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176 SDLcdrom = cdpath; |
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177 do { |
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178 delim = strchr(SDLcdrom, ':'); |
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179 if ( delim ) { |
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180 *delim++ = '\0'; |
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181 } |
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182 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) { |
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183 AddDrive(SDLcdrom, &stbuf); |
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184 } |
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185 if ( delim ) { |
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186 SDLcdrom = delim; |
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187 } else { |
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188 SDLcdrom = NULL; |
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189 } |
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190 } while ( SDLcdrom ); |
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191 free(cdpath); |
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192 } |
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193 |
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194 /* If we found our drives, there's nothing left to do */ |
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195 if ( SDL_numcds > 0 ) { |
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196 return(0); |
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197 } |
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198 } |
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199 /* Scan the system for CD-ROM drives */ |
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200 for ( i=0; checklist[i]; ++i ) { |
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201 if ( checklist[i][0] == '?' ) { |
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202 char *insert; |
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203 exists = 1; |
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204 for ( j=checklist[i][1]; exists; ++j ) { |
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205 sprintf(drive, "/dev/%sc", &checklist[i][3]); |
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206 insert = strchr(drive, '?'); |
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207 if ( insert != NULL ) { |
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208 *insert = j; |
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209 } |
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210 switch (CheckDrive(drive, &stbuf)) { |
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211 /* Drive exists and is a CD-ROM */ |
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212 case 1: |
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213 AddDrive(drive, &stbuf); |
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214 break; |
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215 /* Drive exists, but isn't a CD-ROM */ |
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216 case 0: |
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217 break; |
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218 /* Drive doesn't exist */ |
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219 case -1: |
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220 exists = 0; |
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221 break; |
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222 } |
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223 } |
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224 } else { |
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225 sprintf(drive, "/dev/%s", checklist[i]); |
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226 if ( CheckDrive(drive, &stbuf) > 0 ) { |
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227 AddDrive(drive, &stbuf); |
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228 } |
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229 } |
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230 } |
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231 /* |
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232 SDLcdrom=malloc(sizeof(char) * 32); |
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233 strcpy(SDLcdrom,"/dev/rdisk/cdrom0c"); |
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234 SDL_cdlist[0] = SDLcdrom; |
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235 stat(SDLcdrom, &stbuf); |
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236 SDL_cdmode[0] = stbuf.st_rdev; |
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237 SDL_numcds = 1; |
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238 */ |
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239 return (0); |
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240 } |
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241 |
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242 static const char *SDL_SYS_CDName(int drive) |
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243 { |
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244 return(SDL_cdlist[drive]); |
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245 } |
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246 |
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247 static int SDL_SYS_CDOpen(int drive) |
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248 { |
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249 /* O_RDWR: To use ioctl(fd, SCSI_STOP_UNIT) */ |
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250 return(open(SDL_cdlist[drive], (O_RDWR|O_NDELAY), 0)); |
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251 } |
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252 |
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253 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) |
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254 { |
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255 struct cd_toc toc; |
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256 struct cd_toc_header hdr; |
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257 struct cd_toc_entry *cdte; |
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258 int i; |
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259 int okay = 0; |
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260 if ( ioctl(cdrom->id, CDROM_TOC_HEADER, &hdr) ) { |
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261 fprintf(stderr,"ioctl error CDROM_TOC_HEADER\n"); |
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262 return -1; |
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263 } |
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264 cdrom->numtracks = hdr.th_ending_track - hdr.th_starting_track + 1; |
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265 if ( cdrom->numtracks > SDL_MAX_TRACKS ) { |
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266 cdrom->numtracks = SDL_MAX_TRACKS; |
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267 } |
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268 #ifdef DEBUG_CDROM |
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269 fprintf(stderr,"hdr.th_data_len1 = %d\n", hdr.th_data_len1); |
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270 fprintf(stderr,"hdr.th_data_len0 = %d\n", hdr.th_data_len0); |
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271 fprintf(stderr,"hdr.th_starting_track = %d\n", hdr.th_starting_track); |
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272 fprintf(stderr,"hdr.th_ending_track = %d\n", hdr.th_ending_track); |
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273 fprintf(stderr,"cdrom->numtracks = %d\n", cdrom->numtracks); |
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274 #endif |
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275 toc.toc_address_format = CDROM_LBA_FORMAT; |
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276 toc.toc_starting_track = 0; |
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277 toc.toc_alloc_length = (hdr.th_data_len1 << 8) + |
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278 hdr.th_data_len0 + sizeof(hdr); |
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279 if ( (toc.toc_buffer = alloca(toc.toc_alloc_length)) == NULL) { |
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280 fprintf(stderr,"cannot allocate toc.toc_buffer\n"); |
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281 return -1; |
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282 } |
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283 |
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284 bzero (toc.toc_buffer, toc.toc_alloc_length); |
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285 if (ioctl(cdrom->id, CDROM_TOC_ENTRYS, &toc)) { |
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286 fprintf(stderr,"ioctl error CDROM_TOC_ENTRYS\n"); |
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287 return -1; |
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288 } |
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289 |
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290 (char *)cdte = toc.toc_buffer + sizeof(hdr); |
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291 for (i=0; i <= cdrom->numtracks; ++i) { |
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292 if (i == cdrom->numtracks ) { |
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293 cdrom->track[i].id = 0xAA;; |
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294 } else { |
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295 cdrom->track[i].id = hdr.th_starting_track + i; |
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296 } |
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297 |
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298 cdrom->track[i].type = |
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299 cdte[i].te_control & CDROM_DATA_TRACK; |
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300 cdrom->track[i].offset = |
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301 cdte[i].te_absaddr.lba.addr3 << 24 | |
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302 cdte[i].te_absaddr.lba.addr2 << 16 | |
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303 cdte[i].te_absaddr.lba.addr1 << 8 | |
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304 cdte[i].te_absaddr.lba.addr0; |
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305 cdrom->track[i].length = 0; |
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306 if ( i > 0 ) { |
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307 cdrom->track[i - 1].length = |
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308 cdrom->track[i].offset - |
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309 cdrom->track[i - 1].offset; |
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310 } |
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311 } |
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312 #ifdef DEBUG_CDROM |
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313 for (i = 0; i <= cdrom->numtracks; i++) { |
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314 fprintf(stderr,"toc_entry[%d].te_track_number = %d\n", |
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315 i,cdte[i].te_track_number); |
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316 fprintf(stderr,"cdrom->track[%d].id = %d\n", i,cdrom->track[i].id); |
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317 fprintf(stderr,"cdrom->track[%d].type = %x\n", i,cdrom->track[i].type); |
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318 fprintf(stderr,"cdrom->track[%d].offset = %d\n", i,cdrom->track[i].offset); |
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319 fprintf(stderr,"cdrom->track[%d].length = %d\n", i,cdrom->track[i].length); |
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320 } |
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321 #endif |
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322 if ( i == (cdrom->numtracks+1) ) { |
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323 okay = 1; |
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324 } |
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325 |
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326 return(okay ? 0 : -1); |
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327 } |
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328 |
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329 /* Get CD-ROM status */ |
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330 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) |
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|
331 { |
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332 CDstatus status; |
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|
333 struct cd_sub_channel sc; |
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|
334 struct cd_subc_channel_data scd; |
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335 |
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|
336 sc.sch_address_format = CDROM_LBA_FORMAT; |
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337 sc.sch_data_format = CDROM_CURRENT_POSITION; |
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338 sc.sch_track_number = 0; |
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339 sc.sch_alloc_length = sizeof(scd); |
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340 sc.sch_buffer = (caddr_t)&scd; |
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341 if ( ioctl(cdrom->id, CDROM_READ_SUBCHANNEL, &sc) ) { |
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342 status = CD_ERROR; |
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343 fprintf(stderr,"ioctl error CDROM_READ_SUBCHANNEL \n"); |
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344 } else { |
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345 switch (scd.scd_header.sh_audio_status) { |
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346 case AS_AUDIO_INVALID: |
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347 status = CD_STOPPED; |
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348 break; |
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349 case AS_PLAY_IN_PROGRESS: |
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350 status = CD_PLAYING; |
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351 break; |
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352 case AS_PLAY_PAUSED: |
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353 status = CD_PAUSED; |
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354 break; |
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355 case AS_PLAY_COMPLETED: |
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356 status = CD_STOPPED; |
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357 break; |
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358 case AS_PLAY_ERROR: |
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359 status = CD_ERROR; |
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360 break; |
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361 case AS_NO_STATUS: |
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362 status = CD_STOPPED; |
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363 break; |
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364 default: |
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365 status = CD_ERROR; |
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366 break; |
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367 } |
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368 #ifdef DEBUG_CDROM |
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369 fprintf(stderr,"scd.scd_header.sh_audio_status = %x\n", |
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370 scd.scd_header.sh_audio_status); |
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371 #endif |
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372 } |
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373 if (position) { |
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374 if (status == CD_PLAYING || (status == CD_PAUSED) ) { |
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375 *position = |
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376 scd.scd_position_data.scp_absaddr.lba.addr3 << 24 | |
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377 scd.scd_position_data.scp_absaddr.lba.addr2 << 16 | |
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378 scd.scd_position_data.scp_absaddr.lba.addr1 << 8 | |
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379 scd.scd_position_data.scp_absaddr.lba.addr0; |
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380 } else { |
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381 *position = 0; |
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382 } |
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383 } |
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384 |
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385 return status; |
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386 } |
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387 |
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388 /* Start play */ |
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389 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) |
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390 { |
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391 /* Play MSF |
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392 * |
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393 */ |
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394 struct cd_play_audio_msf msf; |
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395 int end; |
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396 |
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397 bzero(&msf, sizeof(msf)); |
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398 end = start +length; |
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399 FRAMES_TO_MSF(start, |
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400 &msf.msf_starting_M_unit, |
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401 &msf.msf_starting_S_unit, |
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402 &msf.msf_starting_F_unit); |
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|
403 FRAMES_TO_MSF(end, |
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|
404 &msf.msf_ending_M_unit, |
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405 &msf.msf_ending_S_unit, |
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|
406 &msf.msf_ending_F_unit); |
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|
407 |
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|
408 return(ioctl(cdrom->id, CDROM_PLAY_AUDIO_MSF, &msf)); |
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409 } |
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|
410 |
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|
411 /* Pause play */ |
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412 static int SDL_SYS_CDPause(SDL_CD *cdrom) |
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413 { |
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414 return(ioctl(cdrom->id, CDROM_PAUSE_PLAY)); |
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|
415 } |
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|
416 |
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|
417 /* Resume play */ |
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418 static int SDL_SYS_CDResume(SDL_CD *cdrom) |
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419 { |
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420 return(ioctl(cdrom->id, CDROM_RESUME_PLAY)); |
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421 } |
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|
422 |
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|
423 /* Stop play */ |
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|
424 static int SDL_SYS_CDStop(SDL_CD *cdrom) |
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|
425 { |
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|
426 return(ioctl(cdrom->id, SCSI_STOP_UNIT)); |
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|
427 } |
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|
428 |
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|
429 /* Eject the CD-ROM */ |
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|
430 static int SDL_SYS_CDEject(SDL_CD *cdrom) |
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parents:
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|
431 { |
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|
432 return(ioctl(cdrom->id, CDROM_EJECT_CADDY)); |
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|
433 } |
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|
434 |
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|
435 /* Close the CD-ROM handle */ |
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|
436 static void SDL_SYS_CDClose(SDL_CD *cdrom) |
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|
437 { |
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|
438 close(cdrom->id); |
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|
439 } |
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parents:
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|
440 |
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|
441 void SDL_SYS_CDQuit(void) |
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|
442 { |
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|
443 int i; |
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parents:
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changeset
|
444 |
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|
445 if ( SDL_numcds > 0 ) { |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
446 for ( i=0; i<SDL_numcds; ++i ) { |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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447 free(SDL_cdlist[i]); |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
448 } |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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449 SDL_numcds = 0; |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
450 } |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
451 } |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
452 |
e92bcf2573cb
Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
453 |