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Added audio and CD-ROM support for OSF/Tru64 (thanks Hayashi!)

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40655
This commit is contained in:
Sam Lantinga 2003-07-22 14:01:21 +00:00
parent 4c8805d5ab
commit 311d6a8f61
14 changed files with 856 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

14
configure.in
View file

@ -2170,13 +2170,15 @@ case "$target" in
CheckAAlib
CheckOpenGL
CheckPTHREAD
SDL_LIBS="$SDL_LIBS -lrt"
# Set up files for the main() stub
COPY_ARCH_SRC(src/main, linux, SDL_main.c)
# Set up files for the audio library
if test x$enable_audio = xyes; then
CFLAGS="$CFLAGS -DSUNAUDIO_SUPPORT"
AUDIO_SUBDIRS="$AUDIO_SUBDIRS sun"
AUDIO_DRIVERS="$AUDIO_DRIVERS sun/libaudio_sun.la"
CFLAGS="$CFLAGS -I/usr/include/mme -DMMEAUDIO_SUPPORT"
SYSTEM_LIBS="$SYSTEM_LIBS -lmme"
AUDIO_SUBDIRS="$AUDIO_SUBDIRS mme"
AUDIO_DRIVERS="$AUDIO_DRIVERS mme/libaudio_mme.la"
fi
# Set up files for the joystick library
# (No joystick support yet)
@ -2187,8 +2189,8 @@ case "$target" in
# Set up files for the cdrom library
# (No cdrom support yet)
if test x$enable_cdrom = xyes; then
CDROM_SUBDIRS="$CDROM_SUBDIRS dummy"
CDROM_DRIVERS="$CDROM_DRIVERS dummy/libcdrom_dummy.la"
CDROM_SUBDIRS="$CDROM_SUBDIRS osf"
CDROM_DRIVERS="$CDROM_DRIVERS osf/libcdrom_osf.la"
fi
# Set up files for the thread library
if test x$enable_threads = xyes; then
@ -2626,6 +2628,7 @@ src/audio/dsp/Makefile
src/audio/esd/Makefile
src/audio/macrom/Makefile
src/audio/mint/Makefile
src/audio/mme/Makefile
src/audio/nas/Makefile
src/audio/nto/Makefile
src/audio/openbsd/Makefile
@ -2695,6 +2698,7 @@ src/cdrom/linux/Makefile
src/cdrom/macos/Makefile
src/cdrom/macosx/Makefile
src/cdrom/openbsd/Makefile
src/cdrom/osf/Makefile
src/cdrom/qnx/Makefile
src/cdrom/win32/Makefile
src/thread/Makefile

4
include/SDL_types.h
View file

@ -47,7 +47,7 @@ typedef signed int Sint32;
/* Figure out how to support 64-bit datatypes */
#if !defined(__STRICT_ANSI__)
#if defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C)
#if defined(__GNUC__) || defined(__MWERKS__) || defined(__DECC)
#define SDL_HAS_64BIT_TYPE long long
#elif defined(_MSC_VER) /* VC++ */
#define SDL_HAS_64BIT_TYPE __int64
@ -61,7 +61,9 @@ typedef signed int Sint32;
/* The 64-bit datatype isn't supported on all platforms */
#ifdef SDL_HAS_64BIT_TYPE
#ifndef H_MMBASIC
typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
#endif
typedef SDL_HAS_64BIT_TYPE Sint64;
#else
/* This is really just a hack to prevent the compiler from complaining */

24
src/audio/Makefile.am
View file

@ -5,8 +5,28 @@ noinst_LTLIBRARIES = libaudio.la
# Define which subdirectories need to be built
SUBDIRS = @AUDIO_SUBDIRS@
DIST_SUBDIRS = alsa arts baudio dma dmedia dsp esd macrom nas nto openbsd \
paudio riscos sun ums windib windx5 disk mint dc
DIST_SUBDIRS = \
alsa \
arts \
baudio \
dc \
disk \
dma \
dmedia \
dsp \
esd \
macrom \
mint \
mme \
nas \
nto \
openbsd \
paudio \
riscos \
sun \
ums \
windib \
windx5
DRIVERS = @AUDIO_DRIVERS@

3
src/audio/SDL_audio.c
View file

@ -83,6 +83,9 @@ static AudioBootStrap *bootstrap[] = {
#ifdef ENABLE_AHI
&AHI_bootstrap,
#endif
#ifdef MMEAUDIO_SUPPORT
&MMEAUDIO_bootstrap,
#endif
#ifdef MINTAUDIO_SUPPORT
&MINTAUDIO_GSXB_bootstrap,
&MINTAUDIO_MCSN_bootstrap,

3
src/audio/SDL_sysaudio.h
View file

@ -163,6 +163,9 @@ extern AudioBootStrap DCAUD_bootstrap;
#ifdef DRENDERER_SUPPORT
extern AudioBootStrap DRENDERER_bootstrap;
#endif
#ifdef MMEAUDIO_SUPPORT
extern AudioBootStrap MMEAUDIO_bootstrap;
#endif
/* This is the current audio device */
extern SDL_AudioDevice *current_audio;

6
src/audio/mme/.cvsignore Normal file
View file

@ -0,0 +1,6 @@
Makefile.in
Makefile
.libs
*.o
*.lo
*.la

9
src/audio/mme/Makefile.am Normal file
View file

@ -0,0 +1,9 @@
## Makefile.am for SDL using the Tru64 MME sound driver
noinst_LTLIBRARIES = libaudio_mme.la
libaudio_mme_la_SOURCES = $(SRCS)
# The SDL audio driver sources
SRCS = SDL_mmeaudio.c \
SDL_mmeaudio.h

256
src/audio/mme/SDL_mmeaudio.c Normal file
View file

@ -0,0 +1,256 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
/* Tru64 UNIX MME support */
#include "SDL_mmeaudio.h"
static BOOL inUse[NUM_BUFFERS];
/* Audio driver functions */
static int MME_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void MME_WaitAudio(_THIS);
static Uint8 *MME_GetAudioBuf(_THIS);
static void MME_PlayAudio(_THIS);
static void MME_WaitDone(_THIS);
static void MME_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
return(1);
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
if ( device ) {
if ( device->hidden ) {
free(device->hidden);
device->hidden = NULL;
}
free(device);
device = NULL;
}
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = malloc(sizeof(SDL_AudioDevice));
if ( this ) {
memset(this, 0, (sizeof *this));
this->hidden = malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
free(this);
}
return(0);
}
memset(this->hidden, 0, (sizeof *this->hidden));
/* Set the function pointers */
this->OpenAudio = MME_OpenAudio;
this->WaitAudio = MME_WaitAudio;
this->PlayAudio = MME_PlayAudio;
this->GetAudioBuf = MME_GetAudioBuf;
this->WaitDone = MME_WaitDone;
this->CloseAudio = MME_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap MMEAUDIO_bootstrap = {
"waveout", "Tru64 MME WaveOut",
Audio_Available, Audio_CreateDevice
};
static void SetMMerror(char *function, MMRESULT code)
{
int len;
char errbuf[MAXERRORLENGTH];
sprintf(errbuf, "%s: ", function);
len = strlen(errbuf);
waveOutGetErrorText(code, errbuf+len, MAXERRORLENGTH-len);
SDL_SetError("%s",errbuf);
}
static void CALLBACK MME_CALLBACK(HWAVEOUT hwo,
UINT uMsg,
DWORD dwInstance,
LPARAM dwParam1,
LPARAM dwParam2)
{
WAVEHDR *wp = (WAVEHDR *) dwParam1;
if ( uMsg == WOM_DONE )
inUse[wp->dwUser] = FALSE;
}
static int MME_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
MMRESULT result;
int i;
mixbuf = NULL;
/* Set basic WAVE format parameters */
shm = mmeAllocMem(sizeof(*shm));
if ( shm == NULL ) {
SDL_SetError("Out of memory: shm");
return(-1);
}
shm->sound = 0;
shm->wFmt.wf.wFormatTag = WAVE_FORMAT_PCM;
/* Determine the audio parameters from the AudioSpec */
switch ( spec->format & 0xFF ) {
case 8:
/* Unsigned 8 bit audio data */
spec->format = AUDIO_U8;
shm->wFmt.wBitsPerSample = 8;
break;
case 16:
/* Signed 16 bit audio data */
spec->format = AUDIO_S16;
shm->wFmt.wBitsPerSample = 16;
break;
default:
SDL_SetError("Unsupported audio format");
return(-1);
}
shm->wFmt.wf.nChannels = spec->channels;
shm->wFmt.wf.nSamplesPerSec = spec->freq;
shm->wFmt.wf.nBlockAlign =
shm->wFmt.wf.nChannels * shm->wFmt.wBitsPerSample / 8;
shm->wFmt.wf.nAvgBytesPerSec =
shm->wFmt.wf.nSamplesPerSec * shm->wFmt.wf.nBlockAlign;
/* Check the buffer size -- minimum of 1/4 second (word aligned) */
if ( spec->samples < (spec->freq/4) )
spec->samples = ((spec->freq/4)+3)&~3;
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(spec);
/* Open the audio device */
result = waveOutOpen(&(shm->sound),
WAVE_MAPPER,
&(shm->wFmt.wf),
MME_CALLBACK,
NULL,
(CALLBACK_FUNCTION|WAVE_OPEN_SHAREABLE));
if ( result != MMSYSERR_NOERROR ) {
SetMMerror("waveOutOpen()", result);
return(-1);
}
/* Create the sound buffers */
mixbuf = (Uint8 *)mmeAllocBuffer(NUM_BUFFERS * (spec->size));
if ( mixbuf == NULL ) {
SDL_SetError("Out of memory: mixbuf");
return(-1);
}
for (i = 0; i < NUM_BUFFERS; i++) {
shm->wHdr[i].lpData = &mixbuf[i * (spec->size)];
shm->wHdr[i].dwBufferLength = spec->size;
shm->wHdr[i].dwFlags = 0;
shm->wHdr[i].dwUser = i;
shm->wHdr[i].dwLoops = 0; /* loop control counter */
shm->wHdr[i].lpNext = NULL; /* reserved for driver */
shm->wHdr[i].reserved = 0;
inUse[i] = FALSE;
}
next_buffer = 0;
return 0;
}
static void MME_WaitAudio(_THIS)
{
mmeWaitForCallbacks ();
mmeProcessCallbacks ();
}
static Uint8 *MME_GetAudioBuf(_THIS)
{
Uint8 *retval;
while ( inUse[next_buffer] )
;
inUse[next_buffer] = TRUE;
retval = (Uint8 *)(shm->wHdr[next_buffer].lpData);
return retval;
}
static void MME_PlayAudio(_THIS)
{
/* Queue it up */
waveOutWrite(shm->sound, &(shm->wHdr[next_buffer]), sizeof(WAVEHDR));
next_buffer = (next_buffer+1)%NUM_BUFFERS;
}
static void MME_WaitDone(_THIS)
{
MMRESULT result;
int i;
if ( shm->sound ) {
result = waveOutReset(shm->sound);
if ( result != MMSYSERR_NOERROR )
SetMMerror("waveOutReset()", result);
else {
mmeWaitForCallbacks ();
mmeProcessCallbacks ();
}
}
}
static void MME_CloseAudio(_THIS)
{
MMRESULT result;
if ( mixbuf ) {
result = mmeFreeBuffer(mixbuf);
if (result != MMSYSERR_NOERROR )
SetMMerror("mmeFreeBuffer", result);
mixbuf = NULL;
}
if ( shm ) {
if ( shm->sound ) {
result = waveOutClose(shm->sound);
if (result != MMSYSERR_NOERROR )
SetMMerror("waveOutClose()", result);
}
result = mmeFreeMem(shm);
if (result != MMSYSERR_NOERROR )
SetMMerror("mmeFreeMem()", result);
shm = NULL;
}
}

59
src/audio/mme/SDL_mmeaudio.h Normal file
View file

@ -0,0 +1,59 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
/* Allow access to a raw mixing buffer */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mme_api.h>
#include "SDL_audio.h"
#include "SDL_mutex.h"
#include "SDL_timer.h"
#include "SDL_audio_c.h"
#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h
#include "SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
#define NUM_BUFFERS 2
struct SharedMem {
HWAVEOUT sound;
WAVEHDR wHdr[NUM_BUFFERS];
PCMWAVEFORMAT wFmt;
};
struct SDL_PrivateAudioData {
Uint8 *mixbuf; /* The raw allocated mixing buffer */
struct SharedMem *shm;
int next_buffer;
};
#define shm (this->hidden->shm)
#define mixbuf (this->hidden->mixbuf)
#define next_buffer (this->hidden->next_buffer)
/* Old variable names */
#endif /* _SDL_lowaudio_h */

6
src/audio/riscos/.cvsignore Normal file
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@ -0,0 +1,6 @@
Makefile.in
Makefile
.libs
*.o
*.lo
*.la

25
src/cdrom/Makefile.am
View file

@ -5,18 +5,19 @@ noinst_LTLIBRARIES = libcdrom.la
# Define which subdirectories need to be built
SUBDIRS = @CDROM_SUBDIRS@
DIST_SUBDIRS = \
aix \
beos \
bsdi \
dc \
dummy \
freebsd \
linux \
macos \
macosx \
openbsd \
qnx \
DIST_SUBDIRS = \
aix \
beos \
bsdi \
dc \
dummy \
freebsd \
linux \
macos \
macosx \
openbsd \
osf \
qnx \
win32
DRIVERS = @CDROM_DRIVERS@

6
src/cdrom/osf/.cvsignore Normal file
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@ -0,0 +1,6 @@
Makefile.in
Makefile
.libs
*.o
*.lo
*.la

8
src/cdrom/osf/Makefile.am Normal file
View file

@ -0,0 +1,8 @@
## Makefile.am for the osf cdrom driver for SDL
noinst_LTLIBRARIES = libcdrom_osf.la
libcdrom_osf_la_SOURCES = $(SRCS)
# The SDL cdrom driver sources
SRCS = SDL_syscdrom.c

453
src/cdrom/osf/SDL_syscdrom.c Normal file
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@ -0,0 +1,453 @@
/*
Tru64 audio module for SDL (Simple DirectMedia Layer)
Copyright (C) 2003
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Functions for system-level CD-ROM audio control */
//#define DEBUG_CDROM 1
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <io/cam/cdrom.h>
#include <io/cam/rzdisk.h>
#include <io/common/devgetinfo.h>
#include <alloca.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "SDL_error.h"
#include "SDL_cdrom.h"
#include "SDL_syscdrom.h"
/* 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);
/* Some ioctl() errno values which occur when the tray is empty */
#define ERRNO_TRAYEMPTY(errno) \
((errno == EIO) || (errno == ENOENT) || (errno == EINVAL))
/* Check a drive to see if it is a CD-ROM */
/* Caution!! Not tested. */
static int CheckDrive(char *drive, struct stat *stbuf)
{
int is_cd, cdfd;
struct cd_sub_channel info;
/* If it doesn't exist, return -1 */
if ( stat(drive, stbuf) < 0 ) {
return(-1);
}
/* If it does exist, verify that it's an available CD-ROM */
is_cd = 0;
if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) {
cdfd = open(drive, (O_RDWR|O_NDELAY), 0);
if ( cdfd >= 0 ) {
info.sch_address_format = CDROM_MSF_FORMAT;
info.sch_data_format = CDROM_CURRENT_POSITION;
info.sch_alloc_length = 0;
info.sch_track_number = 0;
info.sch_buffer = NULL;
/*
*
* Under Linux, EIO occurs when a disk is not present.
* This isn't 100% reliable, so we use the USE_MNTENT
* code above instead.
*
*/
if ( (ioctl(cdfd, CDROM_READ_SUBCHANNEL, &info) == 0) ||
ERRNO_TRAYEMPTY(errno) ) {
is_cd = 1;
}
close(cdfd);
}
}
return(is_cd);
}
/* Add a CD-ROM drive to our list of valid drives */
static void AddDrive(char *drive, struct stat *stbuf)
{
int i;
if ( SDL_numcds < MAX_DRIVES ) {
/* Check to make sure it's not already in our list.
* This can happen when we see a drive via symbolic link.
*
* /
for ( i=0; i<SDL_numcds; ++i ) {
if ( stbuf->st_rdev == SDL_cdmode[i] ) {
#ifdef DEBUG_CDROM
fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
#endif
return;
}
}
/* Add this drive to our list */
i = SDL_numcds;
SDL_cdlist[i] = (char *)malloc(strlen(drive)+1);
if ( SDL_cdlist[i] == NULL ) {
SDL_OutOfMemory();
return;
}
strcpy(SDL_cdlist[i], drive);
SDL_cdmode[i] = stbuf->st_rdev;
++SDL_numcds;
#ifdef DEBUG_CDROM
fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
#endif
}
}
int SDL_SYS_CDInit(void)
{
/* checklist: /dev/cdrom,/dev/cd?c /dev/acd?c
* /dev/matcd?c /dev/mcd?c /dev/scd?c
*
*/
static char *checklist[] = {
"?0 rdisk/cdrom?",NULL};
char drive[32];
char *SDLcdrom;
int i, j, exists;
struct stat stbuf;
/* 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;
/* Look in the environment for our CD-ROM drive list */
SDLcdrom = getenv("SDL_CDROM"); /* ':' separated list of devices */
if ( SDLcdrom != NULL ) {
char *cdpath, *delim;
cdpath = malloc(strlen(SDLcdrom)+1);
if ( cdpath != NULL ) {
strcpy(cdpath, SDLcdrom);
SDLcdrom = cdpath;
do {
delim = strchr(SDLcdrom, ':');
if ( delim ) {
*delim++ = '\0';
}
if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
AddDrive(SDLcdrom, &stbuf);
}
if ( delim ) {
SDLcdrom = delim;
} else {
SDLcdrom = NULL;
}
} while ( SDLcdrom );
free(cdpath);
}
/* If we found our drives, there's nothing left to do */
if ( SDL_numcds > 0 ) {
return(0);
}
}
/* Scan the system for CD-ROM drives */
for ( i=0; checklist[i]; ++i ) {
if ( checklist[i][0] == '?' ) {
char *insert;
exists = 1;
for ( j=checklist[i][1]; exists; ++j ) {
sprintf(drive, "/dev/%sc", &checklist[i][3]);
insert = strchr(drive, '?');
if ( insert != NULL ) {
*insert = j;
}
switch (CheckDrive(drive, &stbuf)) {
/* Drive exists and is a CD-ROM */
case 1:
AddDrive(drive, &stbuf);
break;
/* Drive exists, but isn't a CD-ROM */
case 0:
break;
/* Drive doesn't exist */
case -1:
exists = 0;
break;
}
}
} else {
sprintf(drive, "/dev/%s", checklist[i]);
if ( CheckDrive(drive, &stbuf) > 0 ) {
AddDrive(drive, &stbuf);
}
}
}
/*
SDLcdrom=malloc(sizeof(char) * 32);
strcpy(SDLcdrom,"/dev/rdisk/cdrom0c");
SDL_cdlist[0] = SDLcdrom;
stat(SDLcdrom, &stbuf);
SDL_cdmode[0] = stbuf.st_rdev;
SDL_numcds = 1;
*/
return (0);
}
static const char *SDL_SYS_CDName(int drive)
{
return(SDL_cdlist[drive]);
}
static int SDL_SYS_CDOpen(int drive)
{
/* O_RDWR: To use ioctl(fd, SCSI_STOP_UNIT) */
return(open(SDL_cdlist[drive], (O_RDWR|O_NDELAY), 0));
}
static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
{
struct cd_toc toc;
struct cd_toc_header hdr;
struct cd_toc_entry *cdte;
int i;
int okay = 0;
if ( ioctl(cdrom->id, CDROM_TOC_HEADER, &hdr) ) {
fprintf(stderr,"ioctl error CDROM_TOC_HEADER\n");
return -1;
}
cdrom->numtracks = hdr.th_ending_track - hdr.th_starting_track + 1;
if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
cdrom->numtracks = SDL_MAX_TRACKS;
}
#ifdef DEBUG_CDROM
fprintf(stderr,"hdr.th_data_len1 = %d\n", hdr.th_data_len1);
fprintf(stderr,"hdr.th_data_len0 = %d\n", hdr.th_data_len0);
fprintf(stderr,"hdr.th_starting_track = %d\n", hdr.th_starting_track);
fprintf(stderr,"hdr.th_ending_track = %d\n", hdr.th_ending_track);
fprintf(stderr,"cdrom->numtracks = %d\n", cdrom->numtracks);
#endif
toc.toc_address_format = CDROM_LBA_FORMAT;
toc.toc_starting_track = 0;
toc.toc_alloc_length = (hdr.th_data_len1 << 8) +
hdr.th_data_len0 + sizeof(hdr);
if ( (toc.toc_buffer = alloca(toc.toc_alloc_length)) == NULL) {
fprintf(stderr,"cannot allocate toc.toc_buffer\n");
return -1;
}
bzero (toc.toc_buffer, toc.toc_alloc_length);
if (ioctl(cdrom->id, CDROM_TOC_ENTRYS, &toc)) {
fprintf(stderr,"ioctl error CDROM_TOC_ENTRYS\n");
return -1;
}
(char *)cdte = toc.toc_buffer + sizeof(hdr);
for (i=0; i <= cdrom->numtracks; ++i) {
if (i == cdrom->numtracks ) {
cdrom->track[i].id = 0xAA;;
} else {
cdrom->track[i].id = hdr.th_starting_track + i;
}
cdrom->track[i].type =
cdte[i].te_control & CDROM_DATA_TRACK;
cdrom->track[i].offset =
cdte[i].te_absaddr.lba.addr3 << 24 |
cdte[i].te_absaddr.lba.addr2 << 16 |
cdte[i].te_absaddr.lba.addr1 << 8 |
cdte[i].te_absaddr.lba.addr0;
cdrom->track[i].length = 0;
if ( i > 0 ) {
cdrom->track[i - 1].length =
cdrom->track[i].offset -
cdrom->track[i - 1].offset;
}
}
#ifdef DEBUG_CDROM
for (i = 0; i <= cdrom->numtracks; i++) {
fprintf(stderr,"toc_entry[%d].te_track_number = %d\n",
i,cdte[i].te_track_number);
fprintf(stderr,"cdrom->track[%d].id = %d\n", i,cdrom->track[i].id);
fprintf(stderr,"cdrom->track[%d].type = %x\n", i,cdrom->track[i].type);
fprintf(stderr,"cdrom->track[%d].offset = %d\n", i,cdrom->track[i].offset);
fprintf(stderr,"cdrom->track[%d].length = %d\n", i,cdrom->track[i].length);
}
#endif
if ( i == (cdrom->numtracks+1) ) {
okay = 1;
}
return(okay ? 0 : -1);
}
/* Get CD-ROM status */
static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
{
CDstatus status;
struct cd_sub_channel sc;
struct cd_subc_channel_data scd;
sc.sch_address_format = CDROM_LBA_FORMAT;
sc.sch_data_format = CDROM_CURRENT_POSITION;
sc.sch_track_number = 0;
sc.sch_alloc_length = sizeof(scd);
sc.sch_buffer = (caddr_t)&scd;
if ( ioctl(cdrom->id, CDROM_READ_SUBCHANNEL, &sc) ) {
status = CD_ERROR;
fprintf(stderr,"ioctl error CDROM_READ_SUBCHANNEL \n");
} else {
switch (scd.scd_header.sh_audio_status) {
case AS_AUDIO_INVALID:
status = CD_STOPPED;
break;
case AS_PLAY_IN_PROGRESS:
status = CD_PLAYING;
break;
case AS_PLAY_PAUSED:
status = CD_PAUSED;
break;
case AS_PLAY_COMPLETED:
status = CD_STOPPED;
break;
case AS_PLAY_ERROR:
status = CD_ERROR;
break;
case AS_NO_STATUS:
status = CD_STOPPED;
break;
default:
status = CD_ERROR;
break;
}
#ifdef DEBUG_CDROM
fprintf(stderr,"scd.scd_header.sh_audio_status = %x\n",
scd.scd_header.sh_audio_status);
#endif
}
if (position) {
if (status == CD_PLAYING || (status == CD_PAUSED) ) {
*position =
scd.scd_position_data.scp_absaddr.lba.addr3 << 24 |
scd.scd_position_data.scp_absaddr.lba.addr2 << 16 |
scd.scd_position_data.scp_absaddr.lba.addr1 << 8 |
scd.scd_position_data.scp_absaddr.lba.addr0;
} else {
*position = 0;
}
}
return status;
}
/* Start play */
static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
{
/* Play MSF
*
*/
struct cd_play_audio_msf msf;
int end;
bzero(&msf, sizeof(msf));
end = start +length;
FRAMES_TO_MSF(start,
&msf.msf_starting_M_unit,
&msf.msf_starting_S_unit,
&msf.msf_starting_F_unit);
FRAMES_TO_MSF(end,
&msf.msf_ending_M_unit,
&msf.msf_ending_S_unit,
&msf.msf_ending_F_unit);
return(ioctl(cdrom->id, CDROM_PLAY_AUDIO_MSF, &msf));
}
/* Pause play */
static int SDL_SYS_CDPause(SDL_CD *cdrom)
{
return(ioctl(cdrom->id, CDROM_PAUSE_PLAY));
}
/* Resume play */
static int SDL_SYS_CDResume(SDL_CD *cdrom)
{
return(ioctl(cdrom->id, CDROM_RESUME_PLAY));
}
/* Stop play */
static int SDL_SYS_CDStop(SDL_CD *cdrom)
{
return(ioctl(cdrom->id, SCSI_STOP_UNIT));
}
/* Eject the CD-ROM */
static int SDL_SYS_CDEject(SDL_CD *cdrom)
{
return(ioctl(cdrom->id, CDROM_EJECT_CADDY));
}
/* Close the CD-ROM handle */
static void SDL_SYS_CDClose(SDL_CD *cdrom)
{
close(cdrom->id);
}
void SDL_SYS_CDQuit(void)
{
int i;
if ( SDL_numcds > 0 ) {
for ( i=0; i<SDL_numcds; ++i ) {
free(SDL_cdlist[i]);
}
SDL_numcds = 0;
}
}