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Diffstat (limited to 'distrib/sdl-1.2.15/src/cdrom/beos/SDL_syscdrom.cc')
-rw-r--r--distrib/sdl-1.2.15/src/cdrom/beos/SDL_syscdrom.cc410
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diff --git a/distrib/sdl-1.2.15/src/cdrom/beos/SDL_syscdrom.cc b/distrib/sdl-1.2.15/src/cdrom/beos/SDL_syscdrom.cc
new file mode 100644
index 0000000..9a62c38
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/cdrom/beos/SDL_syscdrom.cc
@@ -0,0 +1,410 @@
+/*
+ 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_BEOS
+
+/* Functions for system-level CD-ROM audio control on BeOS
+ (not completely implemented yet)
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <scsi.h>
+#include <Directory.h>
+#include <Entry.h>
+#include <Path.h>
+
+#include "SDL_cdrom.h"
+extern "C" {
+#include "../SDL_syscdrom.h"
+}
+
+/* Constants to help us get at the SCSI table-of-contents info */
+#define CD_NUMTRACKS(toc) toc.toc_data[3]
+#define CD_TRACK(toc, track) (&toc.toc_data[6+(track)*8])
+#define CD_TRACK_N(toc, track) CD_TRACK(toc, track)[0]
+#define CD_TRACK_M(toc, track) CD_TRACK(toc, track)[3]
+#define CD_TRACK_S(toc, track) CD_TRACK(toc, track)[4]
+#define CD_TRACK_F(toc, track) CD_TRACK(toc, track)[5]
+
+/* Constants to help us get at the SCSI position info */
+#define POS_TRACK(pos) pos.position[6]
+#define POS_ABS_M(pos) pos.position[9]
+#define POS_ABS_S(pos) pos.position[10]
+#define POS_ABS_F(pos) pos.position[11]
+#define POS_REL_M(pos) pos.position[13]
+#define POS_REL_S(pos) pos.position[14]
+#define POS_REL_F(pos) pos.position[15]
+
+/* 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];
+
+/* 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);
+int try_dir(const char *directory);
+
+
+/* Check a drive to see if it is a CD-ROM */
+static int CheckDrive(char *drive)
+{
+ struct stat stbuf;
+ int is_cd, cdfd;
+ device_geometry 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;
+ cdfd = open(drive, 0);
+ if ( cdfd >= 0 ) {
+ if ( ioctl(cdfd, B_GET_GEOMETRY, &info) == B_NO_ERROR ) {
+ if ( info.device_type == B_CD ) {
+ is_cd = 1;
+ }
+ }
+ close(cdfd);
+ } else {
+ /* This can happen when the drive is open .. (?) */;
+ is_cd = 1;
+ }
+ return(is_cd);
+}
+
+/* Add a CD-ROM drive to our list of valid drives */
+static void AddDrive(char *drive)
+{
+ int i;
+ size_t len;
+
+ if ( SDL_numcds < MAX_DRIVES ) {
+ /* Add this drive to our list */
+ i = SDL_numcds;
+ len = SDL_strlen(drive)+1;
+ SDL_cdlist[i] = (char *)SDL_malloc(len);
+ if ( SDL_cdlist[i] == NULL ) {
+ SDL_OutOfMemory();
+ return;
+ }
+ SDL_strlcpy(SDL_cdlist[i], drive, len);
+ ++SDL_numcds;
+#ifdef CDROM_DEBUG
+ fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
+#endif
+ }
+}
+
+/* IDE bus scanning magic */
+enum {
+ IDE_GET_DEVICES_INFO = B_DEVICE_OP_CODES_END + 50,
+};
+struct ide_ctrl_info {
+ bool ide_0_present;
+ bool ide_0_master_present;
+ bool ide_0_slave_present;
+ int ide_0_master_type;
+ int ide_0_slave_type;
+ bool ide_1_present;
+ bool ide_1_master_present;
+ bool ide_1_slave_present;
+ int ide_1_master_type;
+ int ide_1_slave_type;
+};
+
+int SDL_SYS_CDInit(void)
+{
+ char *SDLcdrom;
+
+ /* 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 = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */
+ if ( SDLcdrom != NULL ) {
+ char *cdpath, *delim;
+ size_t len = SDL_strlen(SDLcdrom)+1;
+ cdpath = SDL_stack_alloc(char, len);
+ if ( cdpath != NULL ) {
+ SDL_strlcpy(cdpath, SDLcdrom, len);
+ SDLcdrom = cdpath;
+ do {
+ delim = SDL_strchr(SDLcdrom, ':');
+ if ( delim ) {
+ *delim++ = '\0';
+ }
+ if ( CheckDrive(SDLcdrom) > 0 ) {
+ AddDrive(SDLcdrom);
+ }
+ if ( delim ) {
+ SDLcdrom = delim;
+ } else {
+ SDLcdrom = NULL;
+ }
+ } while ( SDLcdrom );
+ SDL_stack_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 */
+ try_dir("/dev/disk");
+ return 0;
+}
+
+
+int try_dir(const char *directory)
+{
+ BDirectory dir;
+ dir.SetTo(directory);
+ if(dir.InitCheck() != B_NO_ERROR) {
+ return false;
+ }
+ dir.Rewind();
+ BEntry entry;
+ while(dir.GetNextEntry(&entry) >= 0) {
+ BPath path;
+ const char *name;
+ entry_ref e;
+
+ if(entry.GetPath(&path) != B_NO_ERROR)
+ continue;
+ name = path.Path();
+
+ if(entry.GetRef(&e) != B_NO_ERROR)
+ continue;
+
+ if(entry.IsDirectory()) {
+ if(SDL_strcmp(e.name, "floppy") == 0)
+ continue; /* ignore floppy (it is not silent) */
+ int devfd = try_dir(name);
+ if(devfd >= 0)
+ return devfd;
+ }
+ else {
+ int devfd;
+ device_geometry g;
+
+ if(SDL_strcmp(e.name, "raw") != 0)
+ continue; /* ignore partitions */
+
+ devfd = open(name, O_RDONLY);
+ if(devfd < 0)
+ continue;
+
+ if(ioctl(devfd, B_GET_GEOMETRY, &g, sizeof(g)) >= 0) {
+ if(g.device_type == B_CD)
+ {
+ AddDrive(strdup(name));
+ }
+ }
+ close(devfd);
+ }
+ }
+ return B_ERROR;
+}
+
+
+/* General ioctl() CD-ROM command function */
+static int SDL_SYS_CDioctl(int index, int command, void *arg)
+{
+ int okay;
+ int fd;
+
+ okay = 0;
+ fd = open(SDL_cdlist[index], 0);
+ if ( fd >= 0 ) {
+ if ( ioctl(fd, command, arg) == B_NO_ERROR ) {
+ okay = 1;
+ }
+ close(fd);
+ }
+ return(okay ? 0 : -1);
+}
+
+static const char *SDL_SYS_CDName(int drive)
+{
+ return(SDL_cdlist[drive]);
+}
+
+static int SDL_SYS_CDOpen(int drive)
+{
+ return(drive);
+}
+
+static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
+{
+ int i;
+ scsi_toc toc;
+
+ if ( SDL_SYS_CDioctl(cdrom->id, B_SCSI_GET_TOC, &toc) == 0 ) {
+ cdrom->numtracks = CD_NUMTRACKS(toc);
+ if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
+ cdrom->numtracks = SDL_MAX_TRACKS;
+ }
+ for ( i=0; i<=cdrom->numtracks; ++i ) {
+ cdrom->track[i].id = CD_TRACK_N(toc, i);
+ /* FIXME: How do we tell on BeOS? */
+ cdrom->track[i].type = SDL_AUDIO_TRACK;
+ cdrom->track[i].offset = MSF_TO_FRAMES(
+ CD_TRACK_M(toc, i),
+ CD_TRACK_S(toc, i),
+ CD_TRACK_F(toc, i));
+ cdrom->track[i].length = 0;
+ if ( i > 0 ) {
+ cdrom->track[i-1].length =
+ cdrom->track[i].offset-
+ cdrom->track[i-1].offset;
+ }
+ }
+ return(0);
+ } else {
+ return(-1);
+ }
+}
+
+/* Get CD-ROM status */
+static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
+{
+ CDstatus status;
+ int fd;
+ int cur_frame;
+ scsi_position pos;
+
+ fd = open(SDL_cdlist[cdrom->id], 0);
+ cur_frame = 0;
+ if ( fd >= 0 ) {
+ if ( ioctl(fd, B_SCSI_GET_POSITION, &pos) == B_NO_ERROR ) {
+ cur_frame = MSF_TO_FRAMES(
+ POS_ABS_M(pos), POS_ABS_S(pos), POS_ABS_F(pos));
+ }
+ if ( ! pos.position[1] || (pos.position[1] >= 0x13) ||
+ ((pos.position[1] == 0x12) && (!pos.position[6])) ) {
+ status = CD_STOPPED;
+ } else
+ if ( pos.position[1] == 0x11 ) {
+ status = CD_PLAYING;
+ } else {
+ status = CD_PAUSED;
+ }
+ close(fd);
+ } else {
+ status = CD_TRAYEMPTY;
+ }
+ if ( position ) {
+ *position = cur_frame;
+ }
+ return(status);
+}
+
+/* Start play */
+static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
+{
+ int okay;
+ int fd;
+ scsi_play_position pos;
+
+ okay = 0;
+ fd = open(SDL_cdlist[cdrom->id], 0);
+ if ( fd >= 0 ) {
+ FRAMES_TO_MSF(start, &pos.start_m, &pos.start_s, &pos.start_f);
+ FRAMES_TO_MSF(start+length, &pos.end_m, &pos.end_s, &pos.end_f);
+ if ( ioctl(fd, B_SCSI_PLAY_POSITION, &pos) == B_NO_ERROR ) {
+ okay = 1;
+ }
+ close(fd);
+ }
+ return(okay ? 0 : -1);
+}
+
+/* Pause play */
+static int SDL_SYS_CDPause(SDL_CD *cdrom)
+{
+ return(SDL_SYS_CDioctl(cdrom->id, B_SCSI_PAUSE_AUDIO, 0));
+}
+
+/* Resume play */
+static int SDL_SYS_CDResume(SDL_CD *cdrom)
+{
+ return(SDL_SYS_CDioctl(cdrom->id, B_SCSI_RESUME_AUDIO, 0));
+}
+
+/* Stop play */
+static int SDL_SYS_CDStop(SDL_CD *cdrom)
+{
+ return(SDL_SYS_CDioctl(cdrom->id, B_SCSI_STOP_AUDIO, 0));
+}
+
+/* Eject the CD-ROM */
+static int SDL_SYS_CDEject(SDL_CD *cdrom)
+{
+ return(SDL_SYS_CDioctl(cdrom->id, B_SCSI_EJECT, 0));
+}
+
+/* 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 ) {
+ SDL_free(SDL_cdlist[i]);
+ }
+ SDL_numcds = 0;
+ }
+}
+
+#endif /* SDL_CDROM_BEOS */
generated by cgit v1.1 at 2024-12-22 11:16:38 +0000