lv2plugin.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*****************************************************************************
   3  *
   4  *   Copyright (C) 2006,2007,2008,2009 Nedko Arnaudov <nedko@arnaudov.name>
   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; version 2 of the License
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *****************************************************************************/
  20
  21 #include <stdlib.h>
  22 #include <lv2.h>
  23
  24 #include "lv2filter.h"
  25 #define LOG_LEVEL LOG_LEVEL_DEBUG
  26 #include "log.h"
  27
  28 static LV2_Descriptor g_lv2_plugins[] =
  29 {
  30   {
  31     .URI = LV2FILTER_MONO_URI,
  32     .instantiate = lv2filter_instantiate,
  33     .connect_port = lv2filter_connect_port,
  34     .run = lv2filter_run,
  35     .cleanup = lv2filter_cleanup,
  36     .extension_data = lv2filter_extension_data
  37   },
  38   {
  39     .URI = LV2FILTER_STEREO_URI,
  40     .instantiate = lv2filter_instantiate,
  41     .connect_port = lv2filter_connect_port,
  42     .run = lv2filter_run,
  43     .cleanup = lv2filter_cleanup,
  44     .extension_data = lv2filter_extension_data
  45   },
  46   {
  47     .URI = NULL
  48   }
  49 };
  50
  51 static int g_lv2_plugins_count;
  52
  53 void lv2_initialise() __attribute__((constructor));
  54 void lv2_initialise()
  55 {
  56   const LV2_Descriptor * descr_ptr;
  57
  58   LOG_DEBUG("lv2_initialise() called.");
  59
  60   descr_ptr = g_lv2_plugins;
  61
  62   while (descr_ptr->URI != NULL)
  63   {
  64     g_lv2_plugins_count++;
  65     descr_ptr++;
  66   }
  67 }
  68
  69 const LV2_Descriptor* lv2_descriptor(uint32_t index)
  70 {
  71   LOG_DEBUG("lv2_descriptor(%u) called.", (unsigned int)index);
  72
  73   if (index >= g_lv2_plugins_count)
  74   {
  75     LOG_DEBUG("plugin at index %u not found.", (unsigned int)index);
  76     return NULL;
  77   }
  78
  79   LOG_DEBUG("<%s> found.", g_lv2_plugins[index].URI);
  80   return g_lv2_plugins + index;
  81 }