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work on flp-import filter

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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@115 0778d3d1-df1d-0410-868b-ea421aaaa00d
This commit is contained in:
Tobias Doerffel
2006-03-28 14:56:26 +00:00
parent 2e56336056
commit 4041e69e41
5 changed files with 168 additions and 26 deletions
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6
ChangeLog
View File

@@ -1,3 +1,9 @@
2006-03-28 Tobias Doerffel <tobydox/at/users/dot/sourceforge/dot/net>
* plugins/flp_import/flp_import.h:
* plugins/flp_import/flp_import.cpp:
improvements for having a working flp-filter as soon as possible
2005-03-28 Danny McRae <khjklujn/at/yahoo/dot/com>
* src/lib/sample_buffer.cpp:

5
include/import_filter.h
View File

@@ -94,6 +94,11 @@ protected:
#endif
}
inline int readBlock( char * _data, int _len )
{
return( m_file.readBlock( _data, _len ) );
}
inline void ungetChar( int _ch )
{
#ifndef QT3

174
plugins/flp_import/flp_import.cpp
View File

@@ -2,7 +2,6 @@
* flp_import.cpp - support for importing FLP-files
*
* Copyright (c) 2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
* This file partly contains code from Fluidsynth, Peter Hanappe
*
* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
*
@@ -162,6 +161,18 @@ plugin::descriptor flpimport_plugin_descriptor =
}
void dump_mem( const void * buffer, uint n_bytes )
{
uchar * cp = (uchar *) buffer;
for( uint k = 0; k < n_bytes; ++k )
{
printf( "%02x ", ( cp[k] > 31 || cp[k] < 7 ) ? cp[k] : '.' );
}
printf( "\n" );
}
flpImport::flpImport( const QString & _file ) :
importFilter( _file, &flpimport_plugin_descriptor, NULL )
{
@@ -190,16 +201,14 @@ bool flpImport::tryImport( trackContainer * _tc )
return( FALSE );
}
const int header_len = readInt( 4 );
printf("%d\n", header_len );
const int header_len = read32LE();
if( header_len != 6 )
{
invalid_format:
printf( "flpImport::tryImport(): invalid file format\n" );
return( FALSE );
}
const int type = readInt( 2 );
const int type = read16LE();
if( type != 0 )
{
printf( "flpImport::tryImport(): type %d format is not "
@@ -207,7 +216,7 @@ invalid_format:
return( FALSE );
}
const int num_channels = readInt( 2 );
const int num_channels = read16LE();
if( num_channels < 1 || num_channels > 1000 )
{
printf( "flpImport::tryImport(): invalid number of channels "
@@ -217,10 +226,11 @@ invalid_format:
printf( "channels: %d\n", num_channels );
const int ppq = readInt( 2 );
const int ppq = read16LE();
if( ppq < 0 )
{
goto invalid_format;
printf( "flpImport::tryImport(): invalid ppq\n" );
return( FALSE );
}
#ifdef QT4
@@ -240,7 +250,7 @@ invalid_format:
while( 1 )
{
Sint32 id = readID();
const int len = readInt( 4 );
const int len = read32LE();
if( file().atEnd() )
{
printf( "flpImport::tryImport(): unexpected "
@@ -268,11 +278,13 @@ invalid_format:
instrumentTrack * it = NULL;
pattern * p = NULL;
char * text = NULL;
int text_len = 0;
int pat_cnt = 0;
// read channels
for( int i = 0; i < num_channels; ++i )
/* for( int i = 0; i < num_channels; ++i )
{
pd.setValue( i );
#ifdef QT4
@@ -284,20 +296,22 @@ invalid_format:
if( pd.wasCanceled() )
{
return( FALSE );
}
}*/
while( file().atEnd() == FALSE )
{
flpEvents ev = static_cast<flpEvents>( readByte() );
Uint32 data = readByte();
//printf("ev: %d\n", (int) ev );
if( ev >= FLP_Word && ev < FLP_Text )
{
data = ( data << 8 ) + readByte();
data = data | ( readByte() << 8 );
}
if( ev >= FLP_Int && ev < FLP_Text )
{
data = ( data << 8 ) + readByte();
data = ( data << 8 ) + readByte();
data = data | ( readByte() << 16 );
data = data | ( readByte() << 24 );
}
/*For TEXT (variable-length) events, you still have to read the size of the event, which is coded in the next byte(s) a bit like in MIDI files (but not stupidly inverted). After the size is the actual data, which you can process or skip.
@@ -313,25 +327,63 @@ To resume, if Size < 128 then it will occupy only 1 byte, else if Size < 16384 i
if( ev >= FLP_Text )
{
int read_so_far = 2;
Uint32 len = data & 0x7F;
text_len = data & 0x7F;
while( data & 0x80 )
{
data = readByte();
len = ( len << 7 ) | ( data & 0x7F );
++read_so_far;
text_len = ( text_len << 7 ) | ( data & 0x7F );
}
skip( len - read_so_far );
continue;
delete[] text;
text = new char[text_len+1];
if( readBlock( text, text_len ) <= 0 )
{
printf( "could not read string\n" );
}
text[text_len] = 0;
}
switch( ev )
{
// BYTE EVENTS
case FLP_NoteOn:
// data = pos how to handle?
break;
case FLP_LoopActive:
printf( "active loop: %d\n", data );
break;
case FLP_ShowInfo:
printf( "show info: %d\n", data );
break;
case FLP_Shuffle:
printf( "shuffle: %d\n", data );
break;
case FLP_MainVol:
printf( "main-volume: %d\n", data );
break;
case FLP_MainPitch:
printf( "main-pitch: %d\n", data );
break;
case FLP_PatLength:
printf( "pattern-length: %d\n", data );
break;
case FLP_BlockLength:
printf( "block length: %d\n", data );
break;
case FLP_ChanType:
printf( "channel type: %d\n", data );
break;
// WORD EVENTS
case FLP_NewChan:
printf( "new channel\n" );
m_events.clear();
pat_cnt = 0;
@@ -341,7 +393,7 @@ To resume, if Size < 128 then it will occupy only 1 byte, else if Size < 16384 i
it->loadInstrument( "tripleoscillator" );
it->toggledInstrumentTrackButton( FALSE );
continue;
break;
case FLP_NewPat:
p = dynamic_cast<pattern *>( it->createTCO(
@@ -350,9 +402,83 @@ To resume, if Size < 128 then it will occupy only 1 byte, else if Size < 16384 i
it->addTCO( p );
break;
case FLP_Tempo:
printf( "tempo: %d\n", data );
break;
case FLP_CurrentPatNum:
printf( "current pattern: %d\n", data );
break;
case FLP_FX:
printf( "FX-channel for cur channel: %d\n", data );
break;
case FLP_CutOff:
printf( "cutoff (for cur channel?): %d\n", data );
break;
case FLP_Resonance:
printf( "reso (for cur channel?): %d\n", data );
break;
case FLP_FX3:
printf( "FX 3: %d\n", data );
break;
case FLP_ShiftDelay:
printf( "shift delay: %d\n", data );
break;
// DWORD EVENTS
case FLP_DelayReso:
printf( "delay resonance: %d\n", data );
break;
case FLP_Reverb:
printf( "reverb: %d\n", data );
break;
case FLP_Version:
printf( "FL Version: %s\n", text );
break;
case FLP_Text_PluginName:
if( QString( text ) == "3x Osc" )
{
it->loadInstrument( "tripleoscillator" );
}
else
{
printf( "unsupported plugin: %s\n", text );
}
break;
case FLP_Delay:
printf( "delay-data:\n" );
dump_mem( text, text_len );
break;
case FLP_NewPlugin:
printf( "new plugin: %s\n", text );
break;
case FLP_PluginParams:
printf( "plugin params:\n" );
dump_mem( text, text_len );
break;
default:
printf( "handling of FLP-event %d not "
"implemented yet.", ev );
if( ev >= FLP_Text )
{
printf( "unhandled text (%d): %s\n", ev,
text );
}
else
{
printf( "!! handling of FLP-event %d not "
"implemented yet.\n", ev );
}
break;
}
/*

6
plugins/flp_import/flp_import.h
View File

@@ -197,6 +197,12 @@ private:
value |= readByte() << 24;
return( value );
}
inline Sint32 read16LE( void )
{
int value = readByte();
value |= readByte() << 8;
return( value );
}
/* inline int readVar( void )
{
int c = readByte();

3
plugins/midi_import/midi_import.cpp
View File

@@ -1,8 +1,7 @@
/*
* midi_import.cpp - support for importing MIDI-files
*
* Copyright (c) 2005 Tobias Doerffel <tobydox/at/users.sourceforge.net>
* This file partly contains code from Fluidsynth, Peter Hanappe
* Copyright (c) 2005-2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
*