char *GetBlock(struct marking *block, struct InstData *data)
{
LONG startx, stopx;
struct line_node *startline, *stopline, *act;
char *text = NULL;
struct ExportMessage emsg;
ENTER();
startx = block->startx;
stopx = block->stopx;
startline = block->startline;
stopline = block->stopline;
data->CPos_X = startx;
data->actualline = startline;
// clear the export message
memset(&emsg, 0, sizeof(struct ExportMessage));
// fill it afterwards
emsg.UserData = NULL;
emsg.ExportWrap = 0;
emsg.Last = FALSE;
emsg.data = data;
if(startline != stopline)
{
/* Create a firstline look-a-like */
emsg.Contents = (STRPTR)MyAllocPooled(data->mypool, startline->line.Length-startx);
if(startline->line.Styles && *startline->line.Styles != EOS)
{
ULONG startstyle = GetStyle(startx, startline);
if((emsg.Styles = (UWORD *)MyAllocPooled(data->mypool, *((ULONG *)startline->line.Styles-1)+16)))
{
UWORD *styles = emsg.Styles,
*oldstyles = startline->line.Styles;
if(startstyle & BOLD)
{
*styles++ = 1; *styles++ = BOLD;
}
if(startstyle & ITALIC)
{
*styles++ = 1; *styles++ = ITALIC;
}
if(startstyle & UNDERLINE)
{
*styles++ = 1; *styles++ = UNDERLINE;
}
while(*oldstyles <= startx)
oldstyles += 2;
while(*oldstyles != EOS)
{
*styles++ = *oldstyles++ - startx; *styles++ = *oldstyles++;
}
*styles = EOS;
}
}
else
emsg.Styles = NULL;
emsg.Colors = NULL;
if(emsg.Contents)
{
memcpy(emsg.Contents, startline->line.Contents + startx, startline->line.Length - startx);
emsg.Length = startline->line.Length - startx;
emsg.Flow = startline->line.Flow;
emsg.Separator = startline->line.Separator;
emsg.Highlight = startline->line.Color;
emsg.UserData = (APTR)CallHookA(&ExportHookPlain, NULL, &emsg);
MyFreePooled(data->mypool, emsg.Contents);
}
if(emsg.Styles)
MyFreePooled(data->mypool, emsg.Styles);
/* Start iterating... */
act = startline->next;
while(act != stopline)
{
emsg.Contents = act->line.Contents;
emsg.Length = act->line.Length;
emsg.Styles = act->line.Styles;
emsg.Colors = act->line.Colors;
emsg.Flow = act->line.Flow;
emsg.Separator = act->line.Separator;
emsg.Highlight = act->line.Color;
emsg.UserData = (APTR)CallHookA(&ExportHookPlain, (APTR)NULL, &emsg);
act = act->next;
}
/* Create a Lastline look-a-like */
emsg.Contents = (STRPTR)MyAllocPooled(data->mypool, stopx);
if(stopline->line.Styles && *stopline->line.Styles != EOS)
{
ULONG stopstyle = GetStyle(stopx, stopline);
if((emsg.Styles = (UWORD *)MyAllocPooled(data->mypool, *((ULONG *)stopline->line.Styles-1)+16)))
{
UWORD *styles = emsg.Styles,
*oldstyles = stopline->line.Styles;
while(*oldstyles <= stopx)
{
*styles++ = *oldstyles++; *styles++ = *oldstyles++;
}
if(stopstyle & BOLD)
{
*styles++ = stopx+1; *styles++ = ~BOLD;
}
if(stopstyle & ITALIC)
{
*styles++ = stopx+1; *styles++ = ~ITALIC;
}
if(stopstyle & UNDERLINE)
{
*styles++ = stopx+1; *styles++ = ~UNDERLINE;
}
*styles = EOS;
}
}
else
emsg.Styles = NULL;
emsg.Colors = NULL;
if(emsg.Contents)
{
memcpy(emsg.Contents, stopline->line.Contents, stopx);
emsg.Length = stopx;
emsg.Flow = stopline->line.Flow;
emsg.Separator = stopline->line.Separator;
emsg.Highlight = stopline->line.Color;
emsg.Last = TRUE;
text = (STRPTR)CallHookA(&ExportHookPlain, NULL, &emsg);
MyFreePooled(data->mypool, emsg.Contents);
}
if(emsg.Styles)
MyFreePooled(data->mypool, emsg.Styles);
}
else
{
/* Create a single line */
emsg.Contents = (STRPTR)MyAllocPooled(data->mypool, stopx-startx);
if(startline->line.Styles && *startline->line.Styles != EOS)
{
ULONG startstyle = GetStyle(startx, startline);
ULONG stopstyle = GetStyle(stopx, stopline);
if((emsg.Styles = (UWORD *)MyAllocPooled(data->mypool, *((ULONG *)startline->line.Styles-1))))
{
UWORD *styles = emsg.Styles,
*oldstyles = startline->line.Styles;
if(startstyle & BOLD)
{
*styles++ = 1; *styles++ = BOLD;
}
if(startstyle & ITALIC)
{
*styles++ = 1; *styles++ = ITALIC;
}
if(startstyle & UNDERLINE)
{
*styles++ = 1; *styles++ = UNDERLINE;
}
while(*oldstyles <= startx)
oldstyles += 2;
while(*oldstyles <= stopx)
{
*styles++ = *oldstyles++ - startx;
*styles++ = *oldstyles++;
}
if(stopstyle & BOLD)
{
*styles++ = stopx-startx+1; *styles++ = ~BOLD;
}
if(stopstyle & ITALIC)
{
*styles++ = stopx-startx+1; *styles++ = ~ITALIC;
}
if(stopstyle & UNDERLINE)
{
*styles++ = stopx-startx+1; *styles++ = ~UNDERLINE;
}
*styles = EOS;
}
}
else
emsg.Styles = NULL;
emsg.Colors = NULL;
if(emsg.Contents)
{
memcpy(emsg.Contents, startline->line.Contents+startx, stopx-startx);
emsg.Length = stopx-startx;
emsg.Flow = startline->line.Flow;
emsg.Separator = startline->line.Separator;
emsg.Highlight = startline->line.Color;
emsg.Last = TRUE;
text = (STRPTR)CallHookA(&ExportHookPlain, NULL, &emsg);
MyFreePooled(data->mypool, emsg.Contents);
}
if(emsg.Styles)
MyFreePooled(data->mypool, emsg.Styles);
}
RETURN(text);
return(text);
}
static void
Slave( struct ExecBase* SysBase )
{
struct AHIAudioCtrlDrv* AudioCtrl;
struct DriverBase* AHIsubBase;
struct AROSBase* AROSBase;
BOOL running;
ULONG signals;
int bytes_in_buffer = 0;
int offset_in_buffer = 0;
AudioCtrl = (struct AHIAudioCtrlDrv*) FindTask( NULL )->tc_UserData;
AHIsubBase = (struct DriverBase*) dd->ahisubbase;
AROSBase = (struct AROSBase*) AHIsubBase;
dd->slavesignal = AllocSignal( -1 );
if( dd->slavesignal != -1 )
{
// Everything set up. Tell Master we're alive and healthy.
Signal( (struct Task*) dd->mastertask,
1L << dd->mastersignal );
running = TRUE;
// The main playback loop follow
while( running )
{
signals = SetSignal(0L,0L);
// KPrintF("++++ arosdriver_after signal checking\n");
if( signals & ( SIGBREAKF_CTRL_C | (1L << dd->slavesignal) ) )
{
running = FALSE;
}
else
{
int skip_mix;
int bytes_avail;
// First Delay() until there is at least one fragment free
while( TRUE )
{
int frag_avail, frag_alloc, frag_size;
OSS_GetOutputInfo( &frag_avail, &frag_alloc, &frag_size,
&bytes_avail );
// KPrintF( "%ld fragments available, %ld alloced (%ld bytes each). %ld bytes total\n", frag_avail, frag_alloc, frag_size, bytes_avail );
if( frag_avail == 0 )
{
// This is actually quite a bit too long delay :-( For
// comparison, the SB Live/Audigy driver uses 1/1000 s
// polling ...
// KPrintF("Delay\n");
#if USE_TIMERTICK
SmallDelay(SysBase);
#else
Delay( 1 );
#endif
}
else
{
break;
}
}
skip_mix = 0;/*CallHookA( AudioCtrl->ahiac_PreTimerFunc,
(Object*) AudioCtrl, 0 );*/
while( bytes_avail > 0 )
{
// KPrintF( "%ld bytes in current buffer.\n", bytes_in_buffer );
if( bytes_in_buffer == 0 )
{
int skip = 0;
int offset = 0;
int samples = 0;
int bytes = 0;
int i;
WORD* src;
WORD* dst;
CallHookPkt( AudioCtrl->ahiac_PlayerFunc, AudioCtrl, NULL );
samples = AudioCtrl->ahiac_BuffSamples;
bytes = samples * 2; // one 16 bit sample is 2 bytes
switch( AudioCtrl->ahiac_BuffType )
{
case AHIST_M16S:
skip = 1;
offset = 0;
break;
case AHIST_M32S:
skip = 2;
offset = 1;
break;
case AHIST_S16S:
skip = 1;
offset = 0;
samples *= 2;
bytes *= 2;
break;
case AHIST_S32S:
skip = 2;
offset = 1;
samples *= 2;
bytes *= 2;
break;
}
bytes_in_buffer = bytes;
offset_in_buffer = 0;
if( ! skip_mix )
{
CallHookPkt( AudioCtrl->ahiac_MixerFunc, AudioCtrl,
dd->mixbuffer );
}
src = ((WORD*) dd->mixbuffer) + offset;
dst = dd->mixbuffer;
for( i = 0; i < samples; ++i )
{
*dst++ = *src;
src += skip;
}
// KPrintF( "Mixed %ld/%ld new bytes/samples\n", bytes, samples );
}
while( bytes_in_buffer > 0 &&
bytes_avail > 0 )
{
int written;
int counter = 0;
do
{
written = OSS_Write( dd->mixbuffer + offset_in_buffer,
min( bytes_in_buffer, bytes_avail ) );
if (counter > 10)
{
if (written < 0) written = 0;
break;
}
if (written < 0) KPrintF("OSS_Write returned %ld. counter %ld bytes_in_buffer %ld bytes_avail %ld\n",
written, counter, bytes_in_buffer, bytes_avail);
counter++;
} while (written < 0);
bytes_in_buffer -= written;
offset_in_buffer += written;
bytes_avail -= written;
// KPrintF( "Wrote %ld bytes (%ld bytes in buffer, offset=%ld, %ld bytes available in OSS buffers\n",
// written, bytes_in_buffer, offset_in_buffer, bytes_avail );
}
}
CallHookA( AudioCtrl->ahiac_PostTimerFunc, (Object*) AudioCtrl, 0 );
}
}
}
FreeSignal( dd->slavesignal );
dd->slavesignal = -1;
Forbid();
// Tell the Master we're dying
Signal( (struct Task*) dd->mastertask,
1L << dd->mastersignal );
dd->slavetask = NULL;
// Multitaking will resume when we are dead.
}
BOOL ReadStruct (
/* SYNOPSIS */
struct Hook * hook,
APTR * dataptr,
void * stream,
const IPTR * sd)
/* FUNCTION
Reads one big endian structure from a streamhook.
INPUTS
hook - Streamhook
dataptr - Put the data here
stream - Read from this stream
sd - Description of the structure to be read. The first element
is the size of the structure.
RESULT
The function returns TRUE on success. On success, the value
read is written into dataptr. On failure, FALSE is returned and the
contents of dataptr are not changed.
NOTES
This function reads big endian values from a streamhook even on
little endian machines.
EXAMPLE
See below.
BUGS
SEE ALSO
ReadByte(), ReadWord(), ReadLong(), ReadFloat(), ReadDouble(),
ReadString(), ReadStruct(), WriteByte(), WriteWord(), WriteLong(),
WriteFloat(), WriteDouble(), WriteString(), WriteStruct()
HISTORY
******************************************************************************/
{
struct MinList _list;
struct ReadLevel * curr;
# define list ((struct List *)&_list)
NEWLIST(list);
if (!(curr = AllocMem (sizeof (struct ReadLevel), MEMF_ANY)) )
return FALSE;
AddTail (list, (struct Node *)curr);
curr->sd = sd;
curr->pos = 0;
curr->s = NULL;
# define DESC curr->sd[curr->pos]
# define IDESC curr->sd[curr->pos ++]
for (;;)
{
if (!curr->pos)
{
if (!(curr->s = AllocMem (IDESC, MEMF_CLEAR)) )
goto error;
}
if (DESC == SDT_END)
break;
switch (IDESC)
{
case SDT_UBYTE: /* Read one 8bit byte */
if (!ReadByte (hook, (UBYTE *)(curr->s + IDESC), stream))
goto error;
break;
case SDT_UWORD: /* Read one 16bit word */
if (!ReadWord (hook, (UWORD *)(curr->s + IDESC), stream))
goto error;
break;
case SDT_ULONG: /* Read one 32bit long */
if (!ReadLong (hook, (ULONG *)(curr->s + IDESC), stream))
goto error;
break;
case SDT_FLOAT: /* Read one 32bit IEEE */
if (!ReadFloat (hook, (FLOAT *)(curr->s + IDESC), stream))
goto error;
break;
case SDT_DOUBLE: /* Read one 64bit IEEE */
if (!ReadDouble (hook, (DOUBLE *)(curr->s + IDESC), stream))
goto error;
break;
case SDT_STRING: { /* Read a string */
UBYTE valid_ptr;
STRPTR * sptr;
sptr = (STRPTR *)(curr->s + IDESC);
if (!ReadByte (hook, &valid_ptr, stream))
goto error;
if (valid_ptr)
{
if (!ReadString (hook, sptr, stream))
goto error;
}
else
{
*sptr = NULL;
}
break; }
case SDT_STRUCT: { /* Read a structure */
struct ReadLevel * next;
IPTR * desc;
APTR aptr;
aptr = (APTR)(curr->s + IDESC);
desc = (IPTR *)IDESC;
curr->pos -= 3; /* Go back to type */
if (!(next = AllocMem (sizeof (struct ReadLevel), MEMF_ANY)) )
goto error;
AddTail (list, (struct Node *)next);
next->sd = desc;
next->pos = 1;
next->s = aptr;
curr = next;
break; }
case SDT_PTR: { /* Follow a pointer */
struct ReadLevel * next;
UBYTE valid_ptr;
IPTR * desc;
APTR * aptr;
aptr = ((APTR *)(curr->s + IDESC));
desc = (IPTR *)IDESC;
if (!ReadByte (hook, &valid_ptr, stream))
goto error;
if (valid_ptr)
{
curr->pos -= 3;
if (!(next = AllocMem (sizeof (struct ReadLevel), MEMF_ANY)) )
goto error;
AddTail (list, (struct Node *)next);
next->sd = desc;
next->pos = 0;
curr = next;
}
else
{
*aptr = NULL;
}
break; }
case SDT_IGNORE: { /* Ignore x bytes */
struct BEIOM_Ignore ig = {BEIO_IGNORE, IDESC};
if (CallHookA (hook, stream, &ig) == EOF)
goto error;
break; }
case SDT_FILL_BYTE: { /* Fill x bytes */
IPTR offset;
UBYTE value;
IPTR count;
offset = IDESC;
value = IDESC;
count = IDESC;
memset (curr->s + offset, value, count);
break; }
case SDT_FILL_LONG: { /* Fill x longs */
ULONG * ulptr;
ULONG value;
IPTR count;
ulptr = (ULONG *)(curr->s + IDESC);
value = IDESC;
count = IDESC;
while (count --)
*ulptr ++ = value;
break; }
case SDT_IFILL_BYTE: { /* Fill x bytes */
IPTR offset;
UBYTE value;
IPTR count;
offset = IDESC;
value = IDESC;
count = IDESC;
struct BEIOM_Ignore ig = {BEIO_IGNORE, count};
if (CallHookA (hook, stream, &ig) == EOF)
goto error;
memset (curr->s + offset, value, count);
break; }
case SDT_IFILL_LONG: { /* Fill x longs */
ULONG * ulptr;
ULONG value;
IPTR count;
ulptr = (ULONG *)(curr->s + IDESC);
value = IDESC;
count = IDESC;
struct BEIOM_Ignore ig = {BEIO_IGNORE, count << 2};
if (CallHookA (hook, stream, &ig) == EOF)
goto error;
while (count --)
*ulptr ++ = value;
break; }
case SDT_SPECIAL: { /* Call user hook */
struct Hook * uhook;
struct SDData data;
data.sdd_Dest = ((APTR)(curr->s + IDESC));
data.sdd_Mode = SDV_SPECIALMODE_READ;
data.sdd_Stream = stream;
uhook = (struct Hook *)IDESC;
if (!CallHookA (uhook, hook, &data))
goto error;
break; }
default:
goto error;
} /* switch */
/* End of the description list ? */
if (DESC == SDT_END)
{
struct ReadLevel * last;
/* Remove the current level */
last = curr;
Remove ((struct Node *)last);
/* Get the last level */
if ((curr = (struct ReadLevel *)GetTail (list)))
{
switch (IDESC)
{
case SDT_STRUCT:
curr->pos += 2; /* Skip 2 parameters */
break;
case SDT_PTR: {
APTR * aptr;
aptr = ((APTR *)(curr->s + IDESC));
curr->pos ++; /* Skip description parameter */
/*
Now put the result of the current level in the
struct of the previous level.
*/
*aptr = last->s;
break; }
}
FreeMem (last, sizeof (struct ReadLevel));
}
else
{
curr = last;
}
}
} /* while */
*dataptr = curr->s;
FreeMem (curr, sizeof (struct ReadLevel));
return TRUE;
error:
curr = (struct ReadLevel *)GetHead (list);
if (curr && curr->s)
FreeStruct (curr->s, curr->sd);
while ((curr = (struct ReadLevel *)RemTail (list)))
FreeMem (curr, sizeof (struct ReadLevel));
return FALSE;
} /* ReadStruct */
