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Fix some bugs in peak reading/drawing.

This commit is contained in:
Jonathan Moore Liles 2008-04-17 08:27:35 -05:00
parent 642d6d48ea
commit 3b40b8a093
6 changed files with 64 additions and 50 deletions
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4
Timeline/Audio_File.C
View File

@ -62,6 +62,10 @@ Audio_File::read_peaks( float fpp, nframes_t start, nframes_t end, int *peaks, P
{
Peaks pk;
*peaks = 0;
*channels = 0;
*pbuf = NULL;
pk.clip( this );
if ( ! pk.open() )

24
Timeline/Peaks.C
View File

@ -50,10 +50,7 @@ Peaks::fill_buffer ( float fpp, int s, int e ) const
{
_fpp = fpp;
read_peaks( s, e, (e - s) / fpp, fpp );
/* FIXME: are we *SURE* we got them all? */
return (e - s) / fpp;
return read_peaks( s, e, (e - s) / fpp, fpp );
}
@ -100,6 +97,11 @@ Peaks::read_peakfile_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize
int channels = _clip->channels();
const int ratio = chunksize / pfchunksize;
/* locate to start position */
if ( fseek( fp, (s * channels / pfchunksize) * sizeof( Peak ), SEEK_CUR ) )
/* failed to seek... peaks not ready? */
return 0;
if ( ratio == 1 )
{
int len = fread( peaks, sizeof( Peak ) * channels, npeaks, fp );
@ -109,9 +111,6 @@ Peaks::read_peakfile_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize
Peak *pbuf = new Peak[ ratio * channels ];
/* locate to start position */
fseek( fp, (s * channels / pfchunksize) * sizeof( Peak ), SEEK_CUR );
size_t len = 0;
int i;
@ -208,7 +207,7 @@ Peaks::read_source_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize )
return i;
}
void
int
Peaks::read_peaks ( int s, int e, int npeaks, int chunksize ) const
{
printf( "reading peaks %d @ %d\n", npeaks, chunksize );
@ -220,6 +219,8 @@ Peaks::read_peaks ( int s, int e, int npeaks, int chunksize ) const
_peakbuf.buf = (peakdata*)realloc( _peakbuf.buf, sizeof( peakdata ) + (_peakbuf.size * sizeof( Peak )) );
}
assert( s >= 0 );
_peakbuf.offset = s;
_peakbuf.buf->chunksize = chunksize;
@ -229,6 +230,7 @@ Peaks::read_peaks ( int s, int e, int npeaks, int chunksize ) const
else
_peakbuf.len = read_peakfile_peaks( _peakbuf.buf->data, s, npeaks, chunksize );
return _peakbuf.len;
}
/** Return the peak for the range of samples */
@ -266,7 +268,9 @@ Peaks::open ( void )
int fd;
make_peaks( 256 );
/* Build peaks asyncronously */
if ( ! fork() )
exit( make_peaks( 256 ) );
if ( ( fd = ::open( peakname( filename ), O_RDONLY ) ) < 0 )
return false;
@ -344,7 +348,7 @@ Peaks::make_peaks ( int chunksize )
len = read_source_peaks( peaks, 1, chunksize );
fwrite( peaks, sizeof( peaks ), 1, fp );
/* FIXME: GUI code shouldn't be here! */
Fl::check();
// Fl::check();
}
while ( len );

2
Timeline/Peaks.H
View File

@ -62,7 +62,7 @@ class Peaks
mutable float _fpp;
void read_peaks ( int s, int e, int npeaks, int chunksize ) const;
int read_peaks ( int s, int e, int npeaks, int chunksize ) const;
int read_source_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize ) const;
int read_source_peaks ( Peak *peaks, int npeaks, int chunksize ) const;
int read_peakfile_peaks ( Peak *peaks, nframes_t s, int npeaks, int chunksize ) const;

80
Timeline/Region.C
View File

@ -562,9 +562,7 @@ Region::draw_box( int X, int Y, int W, int H )
fl_pop_clip();
}
/* Draw (part of) region. OX is pixel offset from start of timeline, X
Y W and H are the portion of the widget to draw (arrived at by
intersection of the clip and relative to OX) */
/** Draw (part of) region. X, Y, W and H are the rectangle we're clipped to. */
void
Region::draw ( int X, int Y, int W, int H )
{
@ -572,6 +570,7 @@ Region::draw ( int X, int Y, int W, int H )
return;
if ( ! ( W > 0 && H > 0 ) )
/* WTF? */
return;
int OX = scroll_x();
@ -579,8 +578,14 @@ Region::draw ( int X, int Y, int W, int H )
if ( ox > OX + _track->w() ||
ox < OX && ox + abs_w() < OX )
/* not in viewport */
return;
if ( x() > X + W || x() + w() < X )
/* no coverage */
return;
int rw = timeline->ts_to_x( _r->end - _r->start );
// nframes_t end = _r->offset + ( _r->end - _r->start );
@ -598,37 +603,45 @@ Region::draw ( int X, int Y, int W, int H )
int rx = x();
fl_push_clip( rx, Y, rw, H );
// fl_push_clip( rx, Y, rw, H );
/* get actual peak data */
int channels;
int peaks;
Peak *pbuf;
const nframes_t start = _r->start + offset + timeline->x_to_ts( X - rx );
_clip->read_peaks( timeline->fpp(),
start,
start + timeline->x_to_ts( W ),
&peaks, &pbuf, &channels );
assert( pbuf );
// const nframes_t start = _r->start + offset + timeline->x_to_ts( X - rx );
nframes_t start = _r->start + offset;
/* draw fade curve outlines--this is only here because of crossfades */
draw_fade( _fade_in, Fade::In, true, X, W );
draw_fade( _fade_out, Fade::Out, true, X, W );
/* if ( X - rx > 0 ) */
/* start += timeline->x_to_ts( X - rx ); */
int ch = (h() - Fl::box_dh( box() )) / channels;
for ( int i = 0; i < channels; ++i )
printf( "offset=%lu start=%lu\n", offset, start, X, rx );
if ( _clip->read_peaks( timeline->fpp(),
start,
start + timeline->x_to_ts( W ),
&peaks, &pbuf, &channels ) )
{
Peak *pb = pbuf + (peaks * i);
/* scale it */
for ( int j = peaks; j--; )
assert( pbuf );
/* draw fade curve outlines--this is only here because of crossfades */
draw_fade( _fade_in, Fade::In, true, X, W );
draw_fade( _fade_out, Fade::Out, true, X, W );
int ch = (h() - Fl::box_dh( box() )) / channels;
for ( int i = 0; i < channels; ++i )
{
pb[ j ].min *= _scale;
pb[ j ].max *= _scale;
}
Peak *pb = pbuf + (peaks * i);
/* scale it */
for ( int j = peaks; j--; )
{
pb[ j ].min *= _scale;
pb[ j ].max *= _scale;
}
/* int fw = timeline->ts_to_x( fade.length ); */
@ -640,22 +653,15 @@ Region::draw ( int X, int Y, int W, int H )
/* pb[ j ].max *= g; */
/* } */
Waveform::draw( X, (y() + Fl::box_dy( box() )) + (i * ch), W, ch,
pb, peaks,
selected() ? fl_invert_color( _color ) : _color );
Waveform::draw( max( X, rx ), (y() + Fl::box_dy( box() )) + (i * ch), min( W, rw ), ch,
pb, peaks,
selected() ? fl_invert_color( _color ) : _color );
}
delete[] pbuf;
}
delete[] pbuf;
/* for ( int i = _clip->channels(); i--; ) */
/* Waveform::draw( rx, X, (y() + Fl::box_dy( box() )) + (i * ch), W, */
/* ch, _clip, i, timeline->fpp(), */
/* _r->start + offset, min( (_r->end - _r->start) - offset, _r->end), */
/* _scale, selected() ? fl_invert_color( _color ) : _color ); */
timeline->draw_measure_lines( rx, Y, rw, H, _box_color );
fl_color( FL_BLACK );
@ -675,7 +681,7 @@ Region::draw ( int X, int Y, int W, int H )
draw_label( pat, (Fl_Align)(FL_ALIGN_INSIDE | FL_ALIGN_CENTER), FL_GREEN );
}
fl_pop_clip();
// fl_pop_clip();
}

2
Timeline/Track.C
View File

@ -103,7 +103,7 @@ Track::draw ( void )
for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
(*r)->draw( X, Y, W, H );
(*r)->draw( X, Y, W, H );
/* draw crossfades */

2
Timeline/Waveform.C
View File

@ -42,7 +42,7 @@ bool Waveform::logarithmic = true;
/** draw a portion of /clip/'s waveform. coordinates are the portion to draw */
void
Waveform::draw ( int X, int Y, int W, int H,
Waveform::draw ( int X, int Y, int W, int H,
Peak *pbuf, int peaks,
Fl_Color color )
{