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0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 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@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* MacOS functions for system-level CD-ROM audio control */
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29
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30 #include <Devices.h>
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31 #include <Files.h>
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32 #include <LowMem.h> /* Use entry table macros, not functions in InterfaceLib */
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33
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34 #include "SDL_cdrom.h"
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35 #include "SDL_syscdrom.h"
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36 #include "SDL_syscdrom_c.h"
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37
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38 /* Added by Matt Slot */
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39 #if !defined(LMGetUnitTableEntryCount)
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40 #define LMGetUnitTableEntryCount() *(short *)0x01D2
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41 #endif
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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 26
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45
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46 /* A list of available CD-ROM drives */
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47 static long SDL_cdversion = 0;
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48 static struct {
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49 short dRefNum;
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50 short driveNum;
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51 long frames;
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52 char name[256];
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53 Boolean hasAudio;
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54 } SDL_cdlist[MAX_DRIVES];
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55 static StringPtr gDriverName = "\p.AppleCD";
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56
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57 /* The system-dependent CD control functions */
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58 static const char *SDL_SYS_CDName(int drive);
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59 static int SDL_SYS_CDOpen(int drive);
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60 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
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61 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
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62 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
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63 static int SDL_SYS_CDPause(SDL_CD *cdrom);
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64 static int SDL_SYS_CDResume(SDL_CD *cdrom);
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65 static int SDL_SYS_CDStop(SDL_CD *cdrom);
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66 static int SDL_SYS_CDEject(SDL_CD *cdrom);
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67 static void SDL_SYS_CDClose(SDL_CD *cdrom);
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68
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69 static short SDL_SYS_ShortToBCD(short value)
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70 {
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71 return((value % 10) + (value / 10) * 0x10); /* Convert value to BCD */
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72 }
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73
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74 static short SDL_SYS_BCDToShort(short value)
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75 {
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76 return((value % 0x10) + (value / 0x10) * 10); /* Convert value from BCD */
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77 }
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78
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79 int SDL_SYS_CDInit(void)
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80 {
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81 SInt16 dRefNum = 0;
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82 SInt16 first, last;
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83
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84 SDL_numcds = 0;
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85
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86 /* Check that the software is available */
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87 if (Gestalt(kGestaltAudioCDSelector, &SDL_cdversion) ||
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88 !SDL_cdversion) return(0);
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89
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90 /* Fill in our driver capabilities */
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91 SDL_CDcaps.Name = SDL_SYS_CDName;
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92 SDL_CDcaps.Open = SDL_SYS_CDOpen;
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93 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
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94 SDL_CDcaps.Status = SDL_SYS_CDStatus;
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95 SDL_CDcaps.Play = SDL_SYS_CDPlay;
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96 SDL_CDcaps.Pause = SDL_SYS_CDPause;
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97 SDL_CDcaps.Resume = SDL_SYS_CDResume;
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98 SDL_CDcaps.Stop = SDL_SYS_CDStop;
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99 SDL_CDcaps.Eject = SDL_SYS_CDEject;
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100 SDL_CDcaps.Close = SDL_SYS_CDClose;
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101
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102 /* Walk the list, count each AudioCD driver, and save the refnums */
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103 first = -1;
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104 last = 0 - LMGetUnitTableEntryCount();
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105 for(dRefNum = first; dRefNum >= last; dRefNum--) {
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106 Str255 driverName;
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107 StringPtr namePtr;
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108 DCtlHandle deviceEntry;
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109
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110 deviceEntry = GetDCtlEntry(dRefNum);
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111 if (! deviceEntry) continue;
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112
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113 /* Is this an .AppleCD ? */
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114 namePtr = (*deviceEntry)->dCtlFlags & (1L << dRAMBased) ?
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115 ((StringPtr) ((DCtlPtr) deviceEntry)->dCtlDriver + 18) :
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116 ((StringPtr) (*deviceEntry)->dCtlDriver + 18);
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117 BlockMoveData(namePtr, driverName, namePtr[0]+1);
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118 if (driverName[0] > gDriverName[0]) driverName[0] = gDriverName[0];
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119 if (! EqualString(driverName, gDriverName, false, false)) continue;
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120
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121 /* Record the basic info for each drive */
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122 SDL_cdlist[SDL_numcds].dRefNum = dRefNum;
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123 BlockMoveData(namePtr + 1, SDL_cdlist[SDL_numcds].name, namePtr[0]);
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124 SDL_cdlist[SDL_numcds].name[namePtr[0]] = 0;
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125 SDL_cdlist[SDL_numcds].hasAudio = false;
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126 SDL_numcds++;
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127 }
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128 return(0);
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129 }
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130
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131 static const char *SDL_SYS_CDName(int drive)
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132 {
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133 return(SDL_cdlist[drive].name);
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134 }
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135
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136 static int get_drivenum(int drive)
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137 {
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138 QHdr *driveQ = GetDrvQHdr();
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139 DrvQEl *driveElem;
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140
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141 /* Update the drive number */
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142 SDL_cdlist[drive].driveNum = 0;
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143 if ( driveQ->qTail ) {
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144 driveQ->qTail->qLink = 0;
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145 }
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146 for ( driveElem=(DrvQEl *)driveQ->qHead; driveElem;
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147 driveElem = (DrvQEl *)driveElem->qLink ) {
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148 if ( driveElem->dQRefNum == SDL_cdlist[drive].dRefNum ) {
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149 SDL_cdlist[drive].driveNum = driveElem->dQDrive;
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150 break;
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151 }
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152 }
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153 return(SDL_cdlist[drive].driveNum);
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154 }
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155
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156 static int SDL_SYS_CDOpen(int drive)
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157 {
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158 return(drive);
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159 }
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160
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161 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
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162 {
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163 CDCntrlParam cdpb;
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164 CDTrackData tracks[SDL_MAX_TRACKS];
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165 long i, leadout;
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166
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167 /* Get the number of tracks on the CD by examining the TOC */
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168 memset(&cdpb, 0, sizeof(cdpb));
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169 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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170 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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171 cdpb.csCode = kReadTOC;
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172 cdpb.csParam.words[0] = kGetTrackRange;
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173 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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174 SDL_SetError("PBControlSync() failed");
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175 return(-1);
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176 }
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177
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178 cdrom->numtracks =
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179 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) -
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180 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1;
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181 if ( cdrom->numtracks > SDL_MAX_TRACKS )
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182 cdrom->numtracks = SDL_MAX_TRACKS;
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183 cdrom->status = CD_STOPPED;
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184 cdrom->cur_track = 0; /* Apparently these are set elsewhere */
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185 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */
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186
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187
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188 /* Get the lead out area of the CD by examining the TOC */
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189 memset(&cdpb, 0, sizeof(cdpb));
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190 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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191 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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192 cdpb.csCode = kReadTOC;
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193 cdpb.csParam.words[0] = kGetLeadOutArea;
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194 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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195 SDL_SetError("PBControlSync() failed");
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196 return(-1);
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197 }
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198
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199 leadout = MSF_TO_FRAMES(
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200 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]),
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201 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]),
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202 SDL_SYS_BCDToShort(cdpb.csParam.bytes[2]));
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203
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204 /* Get an array of track locations by examining the TOC */
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205 memset(tracks, 0, sizeof(tracks));
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206 memset(&cdpb, 0, sizeof(cdpb));
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207 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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208 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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209 cdpb.csCode = kReadTOC;
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210 cdpb.csParam.words[0] = kGetTrackEntries; /* Type of Query */
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211 * ((long *) (cdpb.csParam.words+1)) = (long) tracks;
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212 cdpb.csParam.words[3] = cdrom->numtracks * sizeof(tracks[0]);
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213 * ((char *) (cdpb.csParam.words+4)) = 1; /* First track */
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214 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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215 SDL_SetError("PBControlSync() failed");
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216 return(-1);
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217 }
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218
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219 /* Read all the track TOC entries */
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220 SDL_cdlist[cdrom->id].hasAudio = false;
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221 for ( i=0; i<cdrom->numtracks; ++i )
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222 {
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223 cdrom->track[i].id = i+1;
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224 if (tracks[i].entry.control & kDataTrackMask)
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225 cdrom->track[i].type = SDL_DATA_TRACK;
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226 else
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227 {
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228 cdrom->track[i].type = SDL_AUDIO_TRACK;
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229 SDL_cdlist[SDL_numcds].hasAudio = true;
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230 }
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231
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232 cdrom->track[i].offset = MSF_TO_FRAMES(
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233 SDL_SYS_BCDToShort(tracks[i].entry.min),
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234 SDL_SYS_BCDToShort(tracks[i].entry.min),
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235 SDL_SYS_BCDToShort(tracks[i].entry.frame));
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236 cdrom->track[i].length = MSF_TO_FRAMES(
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237 SDL_SYS_BCDToShort(tracks[i+1].entry.min),
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238 SDL_SYS_BCDToShort(tracks[i+1].entry.min),
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239 SDL_SYS_BCDToShort(tracks[i+1].entry.frame)) -
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240 cdrom->track[i].offset;
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241 }
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242
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243 /* Apparently SDL wants a fake last entry */
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244 cdrom->track[i].offset = leadout;
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245 cdrom->track[i].length = 0;
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246
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247 return(0);
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248 }
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249
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250 /* Get CD-ROM status */
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251 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
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252 {
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253 CDCntrlParam cdpb;
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254 CDstatus status = CD_ERROR;
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255 Boolean spinning = false;
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256
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257 if (position) *position = 0;
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258
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259 /* Get the number of tracks on the CD by examining the TOC */
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260 if ( ! get_drivenum(cdrom->id) ) {
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261 return(CD_TRAYEMPTY);
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262 }
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263 memset(&cdpb, 0, sizeof(cdpb));
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264 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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265 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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266 cdpb.csCode = kReadTOC;
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267 cdpb.csParam.words[0] = kGetTrackRange;
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268 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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269 SDL_SetError("PBControlSync() failed");
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270 return(CD_ERROR);
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271 }
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272
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273 cdrom->numtracks =
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274 SDL_SYS_BCDToShort(cdpb.csParam.bytes[1]) -
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275 SDL_SYS_BCDToShort(cdpb.csParam.bytes[0]) + 1;
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276 if ( cdrom->numtracks > SDL_MAX_TRACKS )
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277 cdrom->numtracks = SDL_MAX_TRACKS;
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278 cdrom->cur_track = 0; /* Apparently these are set elsewhere */
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279 cdrom->cur_frame = 0; /* Apparently these are set elsewhere */
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280
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281
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282 if (1 || SDL_cdlist[cdrom->id].hasAudio) {
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283 /* Get the current playback status */
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284 memset(&cdpb, 0, sizeof(cdpb));
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285 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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286 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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287 cdpb.csCode = kAudioStatus;
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288 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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289 SDL_SetError("PBControlSync() failed");
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290 return(-1);
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291 }
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292
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293 switch(cdpb.csParam.cd.status) {
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294 case kStatusPlaying:
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295 status = CD_PLAYING;
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296 spinning = true;
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297 break;
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298 case kStatusPaused:
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299 status = CD_PAUSED;
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300 spinning = true;
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301 break;
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302 case kStatusMuted:
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303 status = CD_PLAYING; /* What should I do here? */
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304 spinning = true;
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305 break;
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306 case kStatusDone:
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307 status = CD_STOPPED;
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308 spinning = true;
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309 break;
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310 case kStatusStopped:
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311 status = CD_STOPPED;
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312 spinning = false;
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313 break;
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314 case kStatusError:
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315 default:
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316 status = CD_ERROR;
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317 spinning = false;
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318 break;
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319 }
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320
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321 if (spinning && position) *position = MSF_TO_FRAMES(
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322 SDL_SYS_BCDToShort(cdpb.csParam.cd.minute),
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323 SDL_SYS_BCDToShort(cdpb.csParam.cd.second),
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324 SDL_SYS_BCDToShort(cdpb.csParam.cd.frame));
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325 }
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326 else
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327 status = CD_ERROR; /* What should I do here? */
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328
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329 return(status);
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330 }
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331
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332 /* Start play */
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333 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
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334 {
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335 CDCntrlParam cdpb;
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336
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337 /* Pause the current audio playback to avoid audible artifacts */
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338 if ( SDL_SYS_CDPause(cdrom) < 0 ) {
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339 return(-1);
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340 }
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341
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342 /* Specify the AudioCD playback mode */
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343 memset(&cdpb, 0, sizeof(cdpb));
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344 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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345 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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346 cdpb.csCode = kSetPlayMode;
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347 cdpb.csParam.bytes[0] = false; /* Repeat? */
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348 cdpb.csParam.bytes[1] = kPlayModeSequential; /* Play mode */
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349 /* ¥¥¥ÊTreat as soft error, NEC Drive doesnt support this call ¥¥¥ */
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350 PBControlSync((ParmBlkPtr) &cdpb);
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351
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352 #if 1
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353 /* Specify the end of audio playback */
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354 memset(&cdpb, 0, sizeof(cdpb));
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355 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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356 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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357 cdpb.csCode = kAudioStop;
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358 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */
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359 *(long *) (cdpb.csParam.words + 1) = start+length-1; /* Search Address */
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360 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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361 SDL_SetError("PBControlSync() failed");
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362 return(-1);
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363 }
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364
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365 /* Specify the start of audio playback, and start it */
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366 memset(&cdpb, 0, sizeof(cdpb));
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367 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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368 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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369 cdpb.csCode = kAudioPlay;
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370 cdpb.csParam.words[0] = kBlockPosition; /* Position Mode */
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371 *(long *) (cdpb.csParam.words + 1) = start+1; /* Search Address */
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372 cdpb.csParam.words[3] = false; /* Stop address? */
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373 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */
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374 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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375 SDL_SetError("PBControlSync() failed");
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376 return(-1);
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377 }
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378 #else
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379 /* Specify the end of audio playback */
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380 FRAMES_TO_MSF(start+length, &m, &s, &f);
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381 memset(&cdpb, 0, sizeof(cdpb));
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382 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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383 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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384 cdpb.csCode = kAudioStop;
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385 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */
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386 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/
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387 cdpb.csParam.words[2] = /* Search Address (loword)*/
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388 SDL_SYS_ShortToBCD(cdrom->numtracks);
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389 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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390 SDL_SetError("PBControlSync() failed");
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391 return(-1);
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392 }
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393
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394 /* Specify the start of audio playback, and start it */
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395 FRAMES_TO_MSF(start, &m, &s, &f);
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396 memset(&cdpb, 0, sizeof(cdpb));
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397 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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398 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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399 cdpb.csCode = kAudioPlay;
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400 cdpb.csParam.words[0] = kTrackPosition; /* Position Mode */
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401 cdpb.csParam.words[1] = 0; /* Search Address (hiword)*/
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402 cdpb.csParam.words[2] = SDL_SYS_ShortToBCD(1); /* Search Address (loword)*/
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403 cdpb.csParam.words[3] = false; /* Stop address? */
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404 cdpb.csParam.words[4] = kStereoPlayMode; /* Audio Play Mode */
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405 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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406 SDL_SetError("PBControlSync() failed");
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407 return(-1);
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408 }
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409 #endif
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410
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411 return(0);
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412 }
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413
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414 /* Pause play */
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415 static int SDL_SYS_CDPause(SDL_CD *cdrom)
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416 {
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417 CDCntrlParam cdpb;
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418
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419 memset(&cdpb, 0, sizeof(cdpb));
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420 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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421 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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422 cdpb.csCode = kAudioPause;
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423 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */
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424 cdpb.csParam.words[1] = 1; /* Pause/Continue Flag (loword) */
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425 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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426 SDL_SetError("PBControlSync() failed");
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427 return(-1);
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428 }
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429 return(0);
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430 }
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431
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432 /* Resume play */
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433 static int SDL_SYS_CDResume(SDL_CD *cdrom)
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434 {
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435 CDCntrlParam cdpb;
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436
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437 memset(&cdpb, 0, sizeof(cdpb));
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438 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
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439 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
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440 cdpb.csCode = kAudioPause;
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|
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441 cdpb.csParam.words[0] = 0; /* Pause/Continue Flag (hiword) */
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442 cdpb.csParam.words[1] = 0; /* Pause/Continue Flag (loword) */
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|
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443 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
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|
|
444 SDL_SetError("PBControlSync() failed");
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|
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445 return(-1);
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|
|
446 }
|
|
|
447 return(0);
|
|
|
448 }
|
|
|
449
|
|
|
450 /* Stop play */
|
|
|
451 static int SDL_SYS_CDStop(SDL_CD *cdrom)
|
|
|
452 {
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|
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453 CDCntrlParam cdpb;
|
|
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454
|
|
|
455 memset(&cdpb, 0, sizeof(cdpb));
|
|
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456 cdpb.ioVRefNum = SDL_cdlist[cdrom->id].driveNum;
|
|
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457 cdpb.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
|
|
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458 cdpb.csCode = kAudioStop;
|
|
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459 cdpb.csParam.words[0] = 0; /* Position Mode */
|
|
|
460 cdpb.csParam.words[1] = 0; /* Search Address (hiword) */
|
|
|
461 cdpb.csParam.words[2] = 0; /* Search Address (loword) */
|
|
|
462 if ( PBControlSync((ParmBlkPtr)&cdpb) != noErr ) {
|
|
|
463 SDL_SetError("PBControlSync() failed");
|
|
|
464 return(-1);
|
|
|
465 }
|
|
|
466 return(0);
|
|
|
467 }
|
|
|
468
|
|
|
469 /* Eject the CD-ROM */
|
|
|
470 static int SDL_SYS_CDEject(SDL_CD *cdrom)
|
|
|
471 {
|
|
|
472 Boolean disk = false;
|
|
|
473 QHdr *driveQ = GetDrvQHdr();
|
|
|
474 DrvQEl *driveElem;
|
|
|
475 HParamBlockRec hpb;
|
|
|
476 ParamBlockRec cpb;
|
|
|
477
|
|
|
478 for ( driveElem = (DrvQEl *) driveQ->qHead; driveElem; driveElem =
|
|
|
479 (driveElem) ? ((DrvQEl *) driveElem->qLink) :
|
|
|
480 ((DrvQEl *) driveQ->qHead) ) {
|
|
|
481 if ( driveQ->qTail ) {
|
|
|
482 driveQ->qTail->qLink = 0;
|
|
|
483 }
|
|
|
484 if ( driveElem->dQRefNum != SDL_cdlist[cdrom->id].dRefNum ) {
|
|
|
485 continue;
|
|
|
486 }
|
|
|
487
|
|
|
488 /* Does drive contain mounted volume? If not, skip */
|
|
|
489 memset(&hpb, 0, sizeof(hpb));
|
|
|
490 hpb.volumeParam.ioVRefNum = driveElem->dQDrive;
|
|
|
491 if ( PBHGetVInfoSync(&hpb) != noErr ) {
|
|
|
492 continue;
|
|
|
493 }
|
|
|
494 if ( (UnmountVol(0, driveElem->dQDrive) == noErr) &&
|
|
|
495 (Eject(0, driveElem->dQDrive) == noErr) ) {
|
|
|
496 driveElem = 0; /* Clear pointer to reset our loop */
|
|
|
497 disk = true;
|
|
|
498 }
|
|
|
499 }
|
|
|
500
|
|
|
501 /* If no disk is present, just eject the tray */
|
|
|
502 if (! disk) {
|
|
|
503 memset(&cpb, 0, sizeof(cpb));
|
|
|
504 cpb.cntrlParam.ioVRefNum = 0; /* No Drive */
|
|
|
505 cpb.cntrlParam.ioCRefNum = SDL_cdlist[cdrom->id].dRefNum;
|
|
|
506 cpb.cntrlParam.csCode = kEjectTheDisc;
|
|
|
507 if ( PBControlSync((ParmBlkPtr)&cpb) != noErr ) {
|
|
|
508 SDL_SetError("PBControlSync() failed");
|
|
|
509 return(-1);
|
|
|
510 }
|
|
|
511 }
|
|
|
512 return(0);
|
|
|
513 }
|
|
|
514
|
|
|
515 /* Close the CD-ROM handle */
|
|
|
516 static void SDL_SYS_CDClose(SDL_CD *cdrom)
|
|
|
517 {
|
|
|
518 return;
|
|
|
519 }
|
|
|
520
|
|
|
521 void SDL_SYS_CDQuit(void)
|
|
|
522 {
|
|
|
523 while(SDL_numcds--)
|
|
|
524 memset(SDL_cdlist + SDL_numcds, 0, sizeof(SDL_cdlist[0]));
|
|
|
525 }
|
|
|
526
|
