403 lines
9.1 KiB
C
403 lines
9.1 KiB
C
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/*******************************************************************************/
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/* Copyright (C) 2008 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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/* Routings for opening/closing/creation of projects. All the actual
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project state belongs to Timeline and other classes. */
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/* Project management routines. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/fcntl.h>
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#include <errno.h>
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#include "Loggable.H"
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#include "Project.H"
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#include "Timeline.H" // for sample_rate()
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#include "Engine/Engine.H" // for sample_rate()
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#include "TLE.H" // all this just for load and save...
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#include <FL/filename.H>
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#include "const.h"
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#include "debug.h"
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#include "file.h"
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#include "Block_Timer.H"
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#include "Transport.H"
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extern Transport *transport;
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extern TLE *tle;
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const int PROJECT_VERSION = 2;
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extern char *instance_name;
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const char *Project::_errstr[] =
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{
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"Not a Non-DAW project",
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"Locked by another process",
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"Access denied",
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"Samplerate mismatch",
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"Incompatible project version"
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};
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char Project::_name[256];
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char Project::_created_on[40];
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char Project::_path[512];
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bool Project::_is_open = false;
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int Project::_lockfd = 0;
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/***********/
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/* Private */
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/***********/
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void
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Project::set_name ( const char *name )
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{
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strcpy( Project::_name, name );
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if ( Project::_name[ strlen( Project::_name ) - 1 ] == '/' )
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Project::_name[ strlen( Project::_name ) - 1 ] = '\0';
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char *s = rindex( Project::_name, '/' );
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s = s ? s + 1 : Project::_name;
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memmove( Project::_name, s, strlen( s ) + 1 );
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for ( s = Project::_name; *s; ++s )
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if ( *s == '_' || *s == '-' )
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*s = ' ';
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}
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bool
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Project::write_info ( void )
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{
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FILE *fp;
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if ( ! ( fp = fopen( "info", "w" ) ) )
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{
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WARNING( "could not open project info file for writing." );
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return false;
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}
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char s[40];
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if ( ! *_created_on )
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{
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time_t t = time( NULL );
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ctime_r( &t, s );
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s[ strlen( s ) - 1 ] = '\0';
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}
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else
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strcpy( s, _created_on );
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fprintf( fp, "created by\n\t%s %s\ncreated on\n\t%s\nversion\n\t%d\nsample rate\n\t%lu\n",
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APP_NAME, VERSION,
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s,
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PROJECT_VERSION,
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(unsigned long)timeline->sample_rate() );
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fclose( fp );
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return true;
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}
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void
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Project::undo ( void )
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{
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Loggable::undo();
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}
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bool
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Project::read_info ( int *version, nframes_t *sample_rate, char **creation_date, char **created_by )
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{
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FILE *fp;
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if ( ! ( fp = fopen( "info", "r" ) ) )
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{
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WARNING( "could not open project info file for reading." );
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return false;
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}
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*version = 0;
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*sample_rate = 0;
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*creation_date = 0;
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*created_by = 0;
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char *name, *value;
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while ( fscanf( fp, "%a[^\n]\n\t%a[^\n]\n", &name, &value ) == 2 )
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{
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MESSAGE( "Info: %s = %s", name, value );
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if ( ! strcmp( name, "sample rate" ) )
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*sample_rate = atoll( value );
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else if ( ! strcmp( name, "version" ) )
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*version = atoi( value );
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else if ( ! strcmp( name, "created on" ) )
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*creation_date = strdup( value );
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else if ( ! strcmp( name, "created by" ) )
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*created_by = strdup( value );
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free( name );
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free( value );
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}
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fclose( fp );
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return true;
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}
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/**********/
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/* Public */
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/**********/
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/** Save out any settings and unjournaled state... */
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bool
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Project::save ( void )
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{
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if ( ! open() )
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return true;
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tle->save_timeline_settings();
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return Loggable::save_unjournaled_state();
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}
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/** Close the project (reclaiming all memory) */
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bool
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Project::close ( void )
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{
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if ( ! open() )
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return true;
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if ( ! save() )
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return false;
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Loggable::close();
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// write_info();
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_is_open = false;
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*Project::_name = '\0';
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*Project::_created_on = '\0';
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release_lock( &_lockfd, ".lock" );
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delete engine;
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engine = NULL;
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return true;
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}
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/** Ensure a project is valid before opening it... */
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bool
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Project::validate ( const char *name )
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{
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bool r = true;
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char pwd[512];
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fl_filename_absolute( pwd, sizeof( pwd ), "." );
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if ( chdir( name ) )
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{
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WARNING( "Cannot change to project dir \"%s\"", name );
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return false;
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}
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if ( ! exists( "info" ) ||
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! exists( "history" ) ||
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! exists( "sources" ) )
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// ! exists( "options" ) )
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{
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WARNING( "Not a Non-DAW project: \"%s\"", name );
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r = false;
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}
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chdir( pwd );
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return r;
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}
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void
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Project::make_engine ( void )
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{
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if ( engine )
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FATAL( "Engine should be null!" );
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engine = new Engine;
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if ( ! engine->init( instance_name, JACK::Client::SLOW_SYNC | JACK::Client::TIMEBASE_MASTER ))
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FATAL( "Could not connect to JACK!" );
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timeline->sample_rate( engine->sample_rate() );
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/* always start stopped (please imagine for me a realistic
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* scenario requiring otherwise */
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transport->stop();
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}
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/** Try to open project /name/. Returns 0 if sucsessful, an error code
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* otherwise */
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int
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Project::open ( const char *name )
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{
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if ( ! validate( name ) )
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return E_INVALID;
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close();
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chdir( name );
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if ( ! acquire_lock( &_lockfd, ".lock" ) )
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return E_LOCKED;
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int version;
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nframes_t rate;
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char *creation_date;
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char *created_by;
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if ( ! read_info( &version, &rate, &creation_date, &created_by ) )
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return E_INVALID;
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if ( strncmp( created_by, "The Non-DAW", strlen( "The Non-DAW" ) ) &&
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strncmp( created_by, "Non-DAW", strlen( "Non-DAW" ) ) &&
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strncmp( created_by, APP_TITLE, strlen( APP_TITLE ) ) &&
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strncmp( created_by, APP_NAME, strlen( APP_NAME ) ) )
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return E_INVALID;
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if ( version > PROJECT_VERSION )
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return E_VERSION;
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if ( version < 2 )
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{
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/* FIXME: Version 1->2 adds Cursor_Sequence and Cursor_Point to default project... */
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}
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/* normally, engine will be NULL after a close or on an initial open,
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but 'new' will have already created it to get the sample rate. */
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if ( ! engine )
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make_engine();
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{
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Block_Timer timer( "Replayed journal" );
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if ( ! Loggable::open( "history" ) )
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return E_INVALID;
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}
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/* /\* really a good idea? *\/ */
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/* timeline->sample_rate( rate ); */
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if ( creation_date )
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{
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strcpy( _created_on, creation_date );
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free( creation_date );
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}
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else
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*_created_on = 0;
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free( created_by );
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free( creation_date );
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set_name( name );
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*_path = '\0';
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fl_filename_absolute( _path, sizeof( _path ), "." );
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_is_open = true;
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tle->load_timeline_settings();
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timeline->zoom_fit();
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MESSAGE( "Loaded project \"%s\"", name );
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return 0;
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}
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/** Create a new project /name/ from existing template
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* /template_name/ */
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bool
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Project::create ( const char *name, const char *template_name )
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{
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if ( exists( name ) )
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{
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WARNING( "Project already exists" );
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return false;
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}
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close();
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if ( mkdir( name, 0777 ) )
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{
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WARNING( "Cannot create project directory" );
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return false;
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}
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if ( chdir( name ) )
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FATAL( "WTF? Cannot change to new project directory" );
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mkdir( "sources", 0777 );
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creat( "history", 0666 );
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if ( ! engine )
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make_engine();
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/* TODO: copy template */
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write_info();
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if ( open( name ) == 0 )
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{
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/* add the bare essentials */
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timeline->beats_per_minute( 0, 120 );
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timeline->time( 0, 4, 4 );
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MESSAGE( "Created project \"%s\" from template \"%s\"", name, template_name );
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return true;
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}
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else
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{
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WARNING( "Failed to open newly created project" );
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return false;
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}
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}
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/** Replace the journal with a snapshot of the current state */
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void
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Project::compact ( void )
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{
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Block_Timer timer( "Compacted journal" );
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Loggable::compact();
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}
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