diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/cdrom/os2/SDL_syscdrom.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/cdrom/os2/SDL_syscdrom.c | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/cdrom/os2/SDL_syscdrom.c b/distrib/sdl-1.2.15/src/cdrom/os2/SDL_syscdrom.c new file mode 100644 index 0000000..6ed9c65 --- /dev/null +++ b/distrib/sdl-1.2.15/src/cdrom/os2/SDL_syscdrom.c @@ -0,0 +1,393 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#ifdef SDL_CDROM_OS2 + +/* Functions for system-level CD-ROM audio control */ + +#define INCL_MCIOS2 +#include <os2.h> +#include <os2me.h> + +#include "SDL_cdrom.h" +#include "../SDL_syscdrom.h" + +/* Size of MCI result buffer (in bytes) */ +#define MCI_CMDRETBUFSIZE 128 + +/* The maximum number of CD-ROM drives we'll detect */ +#define MAX_DRIVES 16 + +/* A list of available CD-ROM drives */ +static char *SDL_cdlist[MAX_DRIVES]; +//static dev_t SDL_cdmode[MAX_DRIVES]; + +/* The system-dependent CD control functions */ +static const char *SDL_SYS_CDName(int drive); +static int SDL_SYS_CDOpen(int drive); +static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); +static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); +static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); +static int SDL_SYS_CDPause(SDL_CD *cdrom); +static int SDL_SYS_CDResume(SDL_CD *cdrom); +static int SDL_SYS_CDStop(SDL_CD *cdrom); +static int SDL_SYS_CDEject(SDL_CD *cdrom); +static void SDL_SYS_CDClose(SDL_CD *cdrom); + +/* MCI Timing Functions */ +#define MCI_MMTIMEPERSECOND 3000 +#define FRAMESFROMMM(mmtime) (((mmtime)*CD_FPS)/MCI_MMTIMEPERSECOND) + + +/* Ready for MCI CDAudio Devices */ +int SDL_SYS_CDInit(void) +{ +int i; /* generig counter */ +MCI_SYSINFO_PARMS msp; /* Structure to MCI SysInfo parameters */ +CHAR SysInfoRet[MCI_CMDRETBUFSIZE]; /* Buffer for MCI Command result */ + +/* Fill in our driver capabilities */ +SDL_CDcaps.Name = SDL_SYS_CDName; +SDL_CDcaps.Open = SDL_SYS_CDOpen; +SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; +SDL_CDcaps.Status = SDL_SYS_CDStatus; +SDL_CDcaps.Play = SDL_SYS_CDPlay; +SDL_CDcaps.Pause = SDL_SYS_CDPause; +SDL_CDcaps.Resume = SDL_SYS_CDResume; +SDL_CDcaps.Stop = SDL_SYS_CDStop; +SDL_CDcaps.Eject = SDL_SYS_CDEject; +SDL_CDcaps.Close = SDL_SYS_CDClose; + +/* Get the number of CD ROMs in the System */ +/* Clean SysInfo structure */ +SDL_memset(&msp, 0x00, sizeof(MCI_SYSINFO_PARMS)); +/* Prepare structure to Ask Numer of Audio CDs */ +msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ +msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ +msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ +if (LOUSHORT(mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_QUANTITY | MCI_WAIT, (PVOID)&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); +SDL_numcds = atoi(SysInfoRet); +if (SDL_numcds > MAX_DRIVES) SDL_numcds = MAX_DRIVES; /* Limit maximum CD number */ + +/* Get and Add their system name to the SDL_cdlist */ +msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ +msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ +msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ +for (i=0; i<SDL_numcds; i++) + { + msp.ulNumber = i+1; + mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_NAME | MCI_WAIT,&msp, 0); + SDL_cdlist[i] = SDL_strdup(SysInfoRet); + if ( SDL_cdlist[i] == NULL ) + { + SDL_OutOfMemory(); + return(-1); + } + } +return(0); +} + +/* Return CDAudio System Dependent Device Name - Ready for MCI*/ +static const char *SDL_SYS_CDName(int drive) +{ +return(SDL_cdlist[drive]); +} + +/* Open CDAudio Device - Ready for MCI */ +static int SDL_SYS_CDOpen(int drive) +{ +MCI_OPEN_PARMS mop; +MCI_SET_PARMS msp; +MCI_GENERIC_PARMS mgp; + +/* Open the device */ +mop.hwndCallback = (HWND)NULL; // None +mop.usDeviceID = (USHORT)NULL; // Will be returned. +mop.pszDeviceType = (PSZ)SDL_cdlist[drive]; // CDAudio Device +if (LOUSHORT(mciSendCommand(0,MCI_OPEN,MCI_WAIT,&mop, 0)) != MCIERR_SUCCESS) return(CD_ERROR); +/* Set time format */ +msp.hwndCallback = (HWND)NULL; // None +msp.ulTimeFormat = MCI_FORMAT_MSF; // Minute : Second : Frame structure +msp.ulSpeedFormat = (ULONG)NULL; // No change +msp.ulAudio = (ULONG)NULL; // No Channel +msp.ulLevel = (ULONG)NULL; // No Volume +msp.ulOver = (ULONG)NULL; // No Delay +msp.ulItem = (ULONG)NULL; // No item +msp.ulValue = (ULONG)NULL; // No value for item flag +if (LOUSHORT(mciSendCommand(mop.usDeviceID,MCI_SET,MCI_WAIT | MCI_SET_TIME_FORMAT,&msp, 0)) == MCIERR_SUCCESS) return (mop.usDeviceID); +/* Error setting time format? - Close opened device */ +mgp.hwndCallback = (HWND)NULL; // None +mciSendCommand(mop.usDeviceID,MCI_CLOSE,MCI_WAIT,&mgp, 0); +return(CD_ERROR); +} + +/* Get CD Table Of Contents - Ready for MCI */ +static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) +{ +MCI_TOC_PARMS mtp; +MCI_STATUS_PARMS msp; +MCI_TOC_REC * mtr; +INT i; + +/* Correction because MCI cannot read TOC while CD is playing (it'll stop!) */ +if (cdrom->status == CD_PLAYING || cdrom->status == CD_PAUSED) return 0; + +/* Get Number of Tracks */ +msp.hwndCallback = (HWND)NULL; /* None */ +msp.ulReturn = (ULONG)NULL; /* We want this information */ +msp.ulItem = MCI_STATUS_NUMBER_OF_TRACKS; +msp.ulValue = (ULONG)NULL; /* No additional information */ +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); +cdrom->numtracks = msp.ulReturn; +if ( cdrom->numtracks > SDL_MAX_TRACKS ) + { + cdrom->numtracks = SDL_MAX_TRACKS; + } +/* Alocate space for TOC data */ +mtr = (MCI_TOC_REC *)SDL_malloc(cdrom->numtracks*sizeof(MCI_TOC_REC)); +if ( mtr == NULL ) + { + SDL_OutOfMemory(); + return(-1); + } +/* Get TOC from CD */ +mtp.pBuf = mtr; +mtp.ulBufSize = cdrom->numtracks*sizeof(MCI_TOC_REC); +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_GETTOC,MCI_WAIT,&mtp, 0)) != MCIERR_SUCCESS) + { + SDL_OutOfMemory(); + SDL_free(mtr); + return(CD_ERROR); + } +/* Fill SDL Tracks Structure */ +for (i=0; i<cdrom->numtracks; i++) + { + /* Set Track ID */ + cdrom->track[i].id = (mtr+i)->TrackNum; + /* Set Track Type */ + msp.hwndCallback = (HWND)NULL; /* None */ + msp.ulReturn = (ULONG)NULL; /* We want this information */ + msp.ulItem = MCI_CD_STATUS_TRACK_TYPE; + msp.ulValue = (ULONG)((mtr+i)->TrackNum); /* Track Number? */ + if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_TRACK | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) + { + SDL_free(mtr); + return (CD_ERROR); + } + if (msp.ulReturn==MCI_CD_TRACK_AUDIO) cdrom->track[i].type = SDL_AUDIO_TRACK; + else cdrom->track[i].type = SDL_DATA_TRACK; + /* Set Track Length - values from MCI are in MMTIMEs - 3000 MMTIME = 1 second */ + cdrom->track[i].length = FRAMESFROMMM((mtr+i)->ulEndAddr - (mtr+i)->ulStartAddr); + /* Set Track Offset */ + cdrom->track[i].offset = FRAMESFROMMM((mtr+i)->ulStartAddr); + } +SDL_free(mtr); +return(0); +} + + +/* Get CD-ROM status - Ready for MCI */ +static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) +{ +CDstatus status; +MCI_STATUS_PARMS msp; + +/* Get Status from MCI */ +msp.hwndCallback = (HWND)NULL; /* None */ +msp.ulReturn = (ULONG)NULL; /* We want this information */ +msp.ulItem = MCI_STATUS_MODE; +msp.ulValue = (ULONG)NULL; /* No additional information */ +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) status = CD_ERROR; +else + { + switch(msp.ulReturn) + { + case MCI_MODE_NOT_READY: + status = CD_TRAYEMPTY; + break; + case MCI_MODE_PAUSE: + status = CD_PAUSED; + break; + case MCI_MODE_PLAY: + status = CD_PLAYING; + break; + case MCI_MODE_STOP: + status = CD_STOPPED; + break; + /* These cases should not occour */ + case MCI_MODE_RECORD: + case MCI_MODE_SEEK: + default: + status = CD_ERROR; + break; + } + } + +/* Determine position */ +if (position != NULL) /* The SDL $&$&%# CDROM call sends NULL pointer here! */ + { + if ((status == CD_PLAYING) || (status == CD_PAUSED)) + { + /* Get Position */ + msp.hwndCallback = (HWND)NULL; /* None */ + msp.ulReturn = (ULONG)NULL; /* We want this information */ + msp.ulItem = MCI_STATUS_POSITION; + msp.ulValue = (ULONG)NULL; /* No additiona info */ + if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return (CD_ERROR); + /* Convert from MSF (format selected in the Open process) to Frames (format that will be returned) */ + *position = MSF_TO_FRAMES(MSF_MINUTE(msp.ulReturn),MSF_SECOND(msp.ulReturn),MSF_FRAME(msp.ulReturn)); + } + else *position = 0; + } +return(status); +} + +/* Start play - Ready for MCI */ +static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) +{ +MCI_GENERIC_PARMS mgp; +MCI_STATUS_PARMS msp; +MCI_PLAY_PARMS mpp; +ULONG min,sec,frm; + +/* Start MSF */ +FRAMES_TO_MSF(start, &min, &sec, &frm); +MSF_MINUTE(mpp.ulFrom) = min; +MSF_SECOND(mpp.ulFrom) = sec; +MSF_FRAME(mpp.ulFrom) = frm; +/* End MSF */ +FRAMES_TO_MSF(start+length, &min, &sec, &frm); +MSF_MINUTE(mpp.ulTo) = min; +MSF_SECOND(mpp.ulTo) = sec; +MSF_FRAME(mpp.ulTo) = frm; +#ifdef DEBUG_CDROM + fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", + playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, + playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); +#endif +/* Verifies if it is paused first... and if it is, unpause before stopping it. */ +msp.hwndCallback = (HWND)NULL; /* None */ +msp.ulReturn = (ULONG)NULL; /* We want this information */ +msp.ulItem = MCI_STATUS_MODE; +msp.ulValue = (ULONG)NULL; /* No additional information */ +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) + { + if (msp.ulReturn == MCI_MODE_PAUSE) + { + mgp.hwndCallback = (HWND)NULL; // None + mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); + } + } +/* Now play it. */ +mpp.hwndCallback = (HWND)NULL; // We do not want the info. temp +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PLAY,MCI_FROM | MCI_TO,&mpp, 0)) == MCIERR_SUCCESS) return 0; +return (CD_ERROR); +} + +/* Pause play - Ready for MCI */ +static int SDL_SYS_CDPause(SDL_CD *cdrom) +{ +MCI_GENERIC_PARMS mgp; + +mgp.hwndCallback = (HWND)NULL; // None +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PAUSE,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; +return(CD_ERROR); +} + +/* Resume play - Ready for MCI */ +static int SDL_SYS_CDResume(SDL_CD *cdrom) +{ +MCI_GENERIC_PARMS mgp; + +mgp.hwndCallback = (HWND)NULL; // None +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_RESUME,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; +return(CD_ERROR); +} + +/* Stop play - Ready for MCI */ +static int SDL_SYS_CDStop(SDL_CD *cdrom) +{ +MCI_GENERIC_PARMS mgp; +MCI_STATUS_PARMS msp; + +/* Verifies if it is paused first... and if it is, unpause before stopping it. */ +msp.hwndCallback = (HWND)NULL; /* None */ +msp.ulReturn = (ULONG)NULL; /* We want this information */ +msp.ulItem = MCI_STATUS_MODE; +msp.ulValue = (ULONG)NULL; /* No additional information */ +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) + { + if (msp.ulReturn == MCI_MODE_PAUSE) + { + mgp.hwndCallback = (HWND)NULL; // None + mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); + } + } +/* Now stops the media */ +mgp.hwndCallback = (HWND)NULL; // None +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STOP,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; +return(CD_ERROR); +} + +/* Eject the CD-ROM - Ready for MCI */ +static int SDL_SYS_CDEject(SDL_CD *cdrom) +{ +MCI_SET_PARMS msp; + +msp.hwndCallback = (HWND)NULL; // None +msp.ulTimeFormat = (ULONG)NULL; // No change +msp.ulSpeedFormat = (ULONG)NULL; // No change +msp.ulAudio = (ULONG)NULL; // No Channel +msp.ulLevel = (ULONG)NULL; // No Volume +msp.ulOver = (ULONG)NULL; // No Delay +msp.ulItem = (ULONG)NULL; // No item +msp.ulValue = (ULONG)NULL; // No value for item flag +if (LOUSHORT(mciSendCommand(cdrom->id,MCI_SET,MCI_WAIT | MCI_SET_DOOR_OPEN,&msp, 0)) == MCIERR_SUCCESS) return 0; +return(CD_ERROR); +} + +/* Close the CD-ROM handle - Ready for MCI */ +static void SDL_SYS_CDClose(SDL_CD *cdrom) +{ +MCI_GENERIC_PARMS mgp; + +mgp.hwndCallback = (HWND)NULL; // None +mciSendCommand(cdrom->id,MCI_CLOSE,MCI_WAIT,&mgp, 0); +} + +/* Finalize CDROM Subsystem - Ready for MCI */ +void SDL_SYS_CDQuit(void) +{ +int i; + +if ( SDL_numcds > 0 ) + { + for ( i=0; i<SDL_numcds; ++i ) + { + SDL_free(SDL_cdlist[i]); + } + SDL_numcds = 0; + } +} + +#endif /* SDL_CDROM_OS2 */ |