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hcd.c
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/**************************************************************************/
/* */
/* 'Hu-Go! Compact disk Definition' handling code */
/* */
/* This is 'copyleft'. Use and abuse it as you want. */
/* */
/**************************************************************************/
#include "iniconfig.h"
#include "utils.h"
#include "hcd.h"
UInt32 HCD_first_track;
UInt32 HCD_last_track;
char HCD_cover_filename[256] = "";
FILE *HCD_iso_FILE = 0;
#ifdef ALLEGRO
PACKFILE *HCD_packed_iso_FILE = 0;
#endif
UInt32 HCD_current_subtitle = 0;
UInt32 HCD_frame_at_beginning_of_track = 0;
UChar HCD_current_played_track = 0;
int
fill_HCD_info (char *name)
{
#if defined(ALLEGRO) || defined(SDL_mixer)
int current_track;
char *MP3_path, *ISO_path;
char MP3_path_tmp[256], ISO_path_tmp[256], cw_dir[256];
set_config_file (name);
init_config();
HCD_first_track = get_config_int ("main", "first_track", 1);
HCD_last_track = get_config_int ("main", "last_track", 22);
current_track = get_config_int ("main", "minimum_bios", -1);
MP3_path = get_config_string ("main", "MP3_path", "");
if (!strcmp (MP3_path, ""))
{
#ifdef ALLEGRO
fix_filename_path (MP3_path_tmp, name, 256);
#else
memset(MP3_path_tmp,0,256);
memset(cw_dir,0,256);
strcpy (MP3_path_tmp, name);
//Log("MP3_path_tmp:%s#\n",MP3_path_tmp);
//if filepath to .hcd is relative...?
// getcwd +name = gives the full path the hcd
//1. MP3_path_tmp==name => current dir + MP3_path_tmp=.
//2. MP3_path begins with '.' =>
#endif
// {
// because dirname is GNU C only ?
int i;
for (i = 0; MP3_path_tmp[i]; i++)
if (MP3_path_tmp[i] == '\\')
MP3_path_tmp[i] = '/';
// }
if (strrchr (MP3_path_tmp, '/'))
*(strrchr (MP3_path_tmp, '/') + 1) = 0;
if ((strcmp(MP3_path_tmp,name)==0)||(strncmp (MP3_path_tmp, ".",1)==0))
{
if (strcmp(MP3_path_tmp,name)==0)
#if defined(MSDOS)||defined(WIN32)||defined(DJGPP)
strcpy(MP3_path_tmp,"\\");
#else
strcpy(MP3_path_tmp,"/");
#endif
getcwd(cw_dir,256);
//Log("%s\n", cw_dir);
strncat(cw_dir,MP3_path_tmp,256);
MP3_path = cw_dir;
//Log("%s\n", MP3_path);
}else{
MP3_path = MP3_path_tmp;
}
}else{
strcpy (MP3_path_tmp, MP3_path);
MP3_path = MP3_path_tmp;
}
ISO_path = get_config_string ("main", "ISO_path", "");
if (!strcmp (ISO_path, ""))
{
#ifdef ALLEGRO
fix_filename_path (ISO_path_tmp, name, 256);
#else
memset(ISO_path_tmp,0,256);
memset(cw_dir,0,256);
strcpy(ISO_path_tmp, name);
#endif
// {
int i;
for (i = 0; ISO_path_tmp[i]; i++)
if (ISO_path_tmp[i] == '\\')
ISO_path_tmp[i] = '/';
// }
if (strrchr (ISO_path_tmp, '/'))
*(strrchr (ISO_path_tmp, '/') + 1) = 0;
if ((strcmp(ISO_path_tmp,name)==0)||(strncmp (ISO_path_tmp, ".",1)==0))
{
if (strcmp(ISO_path_tmp,name)==0)
#if defined(MSDOS)||defined(WIN32)||defined(DJGPP)
strcpy(ISO_path_tmp,"\\");
#else
strcpy(ISO_path_tmp,"/");
#endif
getcwd(cw_dir,256);
//Log("%s\n", cw_dir);
strncat(cw_dir,ISO_path_tmp,256);
ISO_path = cw_dir;
//Log("%s\n", ISO_path);
}else{
ISO_path = ISO_path_tmp;
}
}else{
strcpy(ISO_path_tmp, ISO_path);
ISO_path = ISO_path_tmp;
}
if (current_track != -1)
minimum_bios_hooking = current_track;
for (current_track = HCD_first_track;
current_track <= HCD_last_track; current_track++)
{
char *section_name = (char *) alloca (100);
char *tmp_buf = (char *) alloca (100);
sprintf (section_name, "track%d", current_track);
//----- Init patch section -----
CD_track[current_track].patch_number = 0;
CD_track[current_track].patch = NULL;
//----- find beginning ---------
strcpy (tmp_buf,
strupr (get_config_string (section_name, "begin", "")));
if (strcasestr (tmp_buf, "MSF"))
{
int min = (tmp_buf[4] - '0') * 10 + (tmp_buf[5] - '0');
int sec = (tmp_buf[7] - '0') * 10 + (tmp_buf[8] - '0');
int fra = (tmp_buf[10] - '0') * 10 + (tmp_buf[11] - '0');
CD_track[current_track].beg_lsn = fra + 75 * (sec + 60 * min);
CD_track[current_track].beg_lsn -= 150;
}
else if (strcasestr (tmp_buf, "LSN"))
{
CD_track[current_track].beg_lsn = atoi (&tmp_buf[4]) - 150;
}
else if (strcasestr (tmp_buf, "LBA"))
{
CD_track[current_track].beg_lsn = atoi (&tmp_buf[4]);
}
else
CD_track[current_track].beg_lsn = 0;
//----- determine type ---------
strcpy (tmp_buf,
strupr (get_config_string (section_name, "type", "AUDIO")));
if (strcmp (tmp_buf, "CODE") == 0)
{
//----- track is code ---------
CD_track[current_track].type = 4; // Code track
//----- emulated track will use a regular file ---------
CD_track[current_track].source_type = HCD_SOURCE_REGULAR_FILE;
//----- search filename of ISO ---------
strcpy (tmp_buf, ISO_path);
strcat (tmp_buf, get_config_string (section_name, "filename", ""));
strcpy (CD_track[current_track].filename, tmp_buf);
#ifdef ALLEGRO
if (!exists (tmp_buf))
{
Log ("Missing ISO file : %s\nUsed to emulate track %d.",
tmp_buf, current_track);
return 0;
}
#elif defined (SDL_mixer) && defined (LINUX)
struct stat rom_file_buf;
if (stat(tmp_buf, &rom_file_buf) != 0)
{
Log("Error : %X when stating %s\n", errno, tmp_buf);
return 0;
}
#endif
//----- determine file length of track ---------
CD_track[current_track].length = file_size (tmp_buf) / 2048;
//----- search for patch -----------------------
CD_track[current_track].patch_number =
get_config_int (section_name, "patch_number", 0);
if (CD_track[current_track].patch_number)
{
UInt32 i;
char tmp_str[256];
CD_track[current_track].patch =
(PatchEntry *) malloc (sizeof (PatchEntry)
*
CD_track[current_track].patch_number);
for (i = 0; i < CD_track[current_track].patch_number; i++)
{
sprintf (tmp_str, "patch%d", i);
strcpy (tmp_str, get_config_string (section_name,
tmp_str,
"0XFFFFFFFF,0XFF"));
sscanf (tmp_str, "%X,%X",
&CD_track[current_track].patch[i].offset,
&CD_track[current_track].patch[i].new_val);
Log
("Patch #%d makes bytes at offset 0x%X replaced by 0x%X\n",
i, CD_track[current_track].patch[i].offset,
CD_track[current_track].patch[i].new_val);
}
}
}
else if (strcmp (tmp_buf, "CD") == 0)
{
int min, sec, fra, control;
int min_end, sec_end, fra_end, control_end;
//------- track is extracted from CD ----------------
CD_track[current_track].source_type = HCD_SOURCE_CD_TRACK;
//------- initializing the drive --------------------
strcpy (tmp_buf, get_config_string (section_name, "drive", "0"));
osd_cd_init (tmp_buf);
//------- looking for the index of the track to use for emulation ----
CD_track[current_track].filename[0] =
get_config_int (section_name, "track", current_track);
//------- looking for the control byte and deducing type ------
osd_cd_track_info (CD_track[current_track].filename[0],
&min, &sec, &fra, &control);
/* TODO : add support if track is in last position */
osd_cd_track_info (CD_track[current_track].filename[0] + 1,
&min_end, &sec_end, &fra_end, &control_end);
CD_track[current_track].length = Time2Frame (min_end,
sec_end,
fra_end)
- Time2Frame (min, sec, fra);
CD_track[current_track].type = (control & 4);
}
else
{
//----- track is audio ---------
CD_track[current_track].type = 0; // Audio track
//----- emulated track will use a regular file ---------
CD_track[current_track].source_type = HCD_SOURCE_REGULAR_FILE;
//----- search filename ---------
strcpy (tmp_buf, MP3_path);
strcat (tmp_buf, get_config_string (section_name, "filename", ""));
strcpy (CD_track[current_track].filename, tmp_buf);
//----- search for subtitles -----------------------
CD_track[current_track].subtitle_synchro_type =
get_config_int (section_name, "synchro_mode", 0);
CD_track[current_track].subtitle_number =
get_config_int (section_name, "subtitle_number", 0);
if (CD_track[current_track].subtitle_number)
{
UInt32 i;
char tmp_str[256];
CD_track[current_track].subtitle =
(SubtitleEntry *) malloc (sizeof (SubtitleEntry)
*
CD_track
[current_track].subtitle_number);
for (i = 0; i < CD_track[current_track].subtitle_number; i++)
{
sprintf (tmp_str, "subtitle%d", i);
strcpy (tmp_str, get_config_string (section_name,
tmp_str, "0,0,"));
sscanf (tmp_str, "%d,%d",
&CD_track[current_track].subtitle[i].StartTime,
&CD_track[current_track].subtitle[i].Duration);
if (strrchr (tmp_str, ','))
{
memset (CD_track[current_track].subtitle[i].data, 0,
32);
strncpy (CD_track[current_track].subtitle[i].data,
strrchr (tmp_str, ',') + 1, 31);
}
Log
("Subtitle #%d begins at %d, lasts %d 60th of sec and is %s\n",
i, CD_track[current_track].subtitle[i].StartTime,
CD_track[current_track].subtitle[i].Duration,
CD_track[current_track].subtitle[i].data);
}
}
//----- use Tormod's work to guess MP3 length ---------
if (strcasestr(CD_track[current_track].filename, ".mp3")) {
CD_track[current_track].length =
(int) (MP3_length (CD_track[current_track].filename) * 75.0);
Log ("After MP3 length guessing, size of %s is %d 75th of second\n",
CD_track[current_track].filename,
CD_track[current_track].length);
}
#ifdef OGG_SUPPORT
//----- littletux: use ogginfo hack to guess OGG length ---------
if (strcasestr(CD_track[current_track].filename, ".ogg")) {
CD_track[current_track].length = (int) (OGG_length(CD_track[current_track].filename));
Log ("After OGG length guessing, size of %s is %d 75th of second\n", CD_track[current_track].filename, CD_track[current_track].length);
}
#endif
if (CD_track[current_track].length == 0)
CD_track[current_track].length = 30 * 75; // 30 sec track
}
//----- if begin hasn't been specified ---------
if (!CD_track[current_track].beg_lsn)
{
if (current_track == 1)
CD_track[current_track].beg_lsn = 0;
else
CD_track[current_track].beg_lsn =
CD_track[current_track - 1].beg_lsn +
CD_track[current_track - 1].length;
}
//----- convert beginning in PCE msf format ---------
{
int min, sec, fra;
Frame2Time (CD_track[current_track].beg_lsn + 150, &min, &sec, &fra);
CD_track[current_track].beg_min = binbcd[min];
CD_track[current_track].beg_sec = binbcd[sec];
CD_track[current_track].beg_fra = binbcd[fra];
}
}
#endif
//restores right file for hugo config
set_config_file_back();
return 1;
}
void
HCD_pause_playing ()
{
if (MP3_playing)
MP3_playing = 0;
};
void
HCD_play_track (UChar track, char repeat)
{
switch (CD_track[track].subtitle_synchro_type)
{
case 0: // frame synchronisation
HCD_frame_at_beginning_of_track = (UInt32)frame;
break;
case 1: // timer synchronisation
HCD_frame_at_beginning_of_track = timer_60;
break;
}
HCD_current_played_track = (UChar)track;
HCD_current_subtitle = 0;
if (CD_track[track].source_type == HCD_SOURCE_CD_TRACK)
{
osd_cd_play_audio_track((UChar)(CD_track[track].filename[0]));
}
#warning "reenable mp3 with sdl"
#if (defined(LINUX) || defined(MSDOS)) && defined(ALLEGRO)
else
if ((CD_track[track].source_type == HCD_SOURCE_REGULAR_FILE) &&
(strcasestr (CD_track[track].filename, ".MP3")))
{ // must play MP3
load_amp (CD_track[track].filename, repeat);
MP3_playing = 1;
}
#elif defined (SDL_mixer)
else if ((CD_track[track].source_type == HCD_SOURCE_REGULAR_FILE)
&& ((strcasestr (CD_track[track].filename, ".mp3"))
||(strcasestr (CD_track[track].filename, ".ogg"))
||(strcasestr (CD_track[track].filename, ".wav"))))
{
Mix_PlayMusic(sdlmixmusic[track],repeat);
MP3_playing = 1;
}
#endif
};
void
HCD_play_sectors (int begin_sect, int sect_len, char repeat)
{
int result;
for (result = nb_max_track; result; result--)
{
if (((UInt32)begin_sect >= CD_track[result].beg_lsn) &&
((unsigned)begin_sect <= CD_track[result].beg_lsn + CD_track[result].length))
break;
}
if (CD_track[result].source_type == HCD_SOURCE_CD_TRACK)
{
UInt32 min_from, sec_from, fra_from;
UInt32 min_to, sec_to, fra_to;
UInt32 min_real, sec_real, fra_real, dummy;
begin_sect -= CD_track[result].beg_lsn;
/* begin_sect is now relative to the begin of the track to play */
Frame2Time((unsigned)begin_sect,
(int*)&min_from,
(int*)&sec_from,
(int*)&fra_from);
sect_len += begin_sect;
/* sect_len is now also relative to the begin of the track to play */
Frame2Time((unsigned)sect_len,
(int*)&min_to,
(int*)&sec_to,
(int*)&fra_to);
osd_cd_track_info((UChar)(CD_track[result].filename[0]),
(int*)&min_real,
(int*)&sec_real,
(int*)&fra_real,
(int*)&dummy);
min_from += min_real;
sec_from += sec_real;
fra_from += fra_real;
min_to += min_real;
sec_to += sec_real;
fra_to += fra_real;
if (fra_to > 75)
{
fra_to -= 75;
sec_to ++;
}
if (fra_from > 75)
{
fra_from -= 75;
sec_from ++;
}
if (sec_to > 60)
{
sec_to -= 60;
min_to ++;
}
if (sec_from > 60)
{
sec_from -= 60;
min_from ++;
}
osd_cd_play_audio_range(min_from,
sec_from,
fra_from,
min_to,
sec_to,
fra_to);
}
#warning "reenable mp3 with sdl"
#if (defined(LINUX) || defined(MSDOS)) && defined(ALLEGRO)
else
if ((CD_track[result].source_type == HCD_SOURCE_REGULAR_FILE) &&
(strcasestr (CD_track[result].filename, ".MP3")))
{ // must play MP3
if (-150 < begin_sect - CD_track[result].beg_lsn < 150)
load_amp (CD_track[result].filename, repeat);
else /* can't yet easily repeat "inside" a track */
load_amp (CD_track[result].filename, FALSE);
if (amp_pollsize)
seek_amp_abs (amp_samprat / amp_pollsize *
(begin_sect - CD_track[result].beg_lsn) / 75);
HCD_frame_at_beginning_of_track =
frame - (begin_sect - CD_track[result].beg_lsn) / 75.0 * 60.0;
/* try to estimate the number of cycle that should have elapsed since
the beginning of the track */
HCD_current_played_track = result;
HCD_current_subtitle = 0;
MP3_playing = 1;
}