research.m1stereo.tv/gitweb/ - melted/blob - src/modules/jackrack/process.h

   1 /*
   2  *   JACK Rack
   3  *
   4  *   Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #ifndef __JLH_PROCESS_H__
  22 #define __JLH_PROCESS_H__
  23
  24 #include <glib.h>
  25 #include <jack/jack.h>
  26 #include <ladspa.h>
  27
  28 #include "lock_free_fifo.h"
  29
  30 typedef struct _process_info process_info_t;
  31
  32 /** this is what gets passed to the process() callback and contains all
  33     the data the process callback will need */
  34 struct _process_info {
  35
  36   /** the plugin instance chain */
  37   struct _plugin * chain;
  38   struct _plugin * chain_end;
  39
  40   jack_client_t * jack_client;
  41   unsigned long port_count;
  42   jack_port_t ** jack_input_ports;
  43   jack_port_t ** jack_output_ports;
  44
  45   unsigned long channels;
  46   LADSPA_Data ** jack_input_buffers;
  47   LADSPA_Data ** jack_output_buffers;
  48
  49   lff_t * ui_to_process;
  50   lff_t * process_to_ui;
  51 };
  52
  53 extern jack_nframes_t sample_rate;
  54 extern jack_nframes_t buffer_size;
  55
  56 struct _ui;
  57
  58 process_info_t * process_info_new (struct _ui * ui, const char * client_name,
  59         unsigned long rack_channels, gboolean connect_inputs, gboolean connect_outputs);
  60 void process_info_destroy (process_info_t * procinfo);
  61
  62 void process_info_set_channels (process_info_t * procinfo, struct _ui * ui,
  63         unsigned long channels, gboolean connect_inputs, gboolean connect_outputs);
  64
  65
  66 int process (jack_nframes_t frames, void * data);
  67
  68
  69 #endif /* __JLH_PROCESS_H__ */