source/libjack/libjack_server-control.cpp

   1 /*
   2  * Carla JACK API for external applications
   3  * Copyright (C) 2016-2022 Filipe Coelho <falktx@falktx.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of
   8  * the License, or any later version.
   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  * For a full copy of the GNU General Public License see the doc/GPL.txt file.
  16  */
  17
  18 #include "libjack.hpp"
  19
  20 CARLA_BACKEND_USE_NAMESPACE
  21
  22 // --------------------------------------------------------------------------------------------------------------------
  23
  24 CARLA_PLUGIN_EXPORT
  25 int jack_set_freewheel(jack_client_t* client, int freewheel)
  26 {
  27     carla_debug("%s(%p, %i)", __FUNCTION__, client, freewheel);
  28     return ENOSYS;
  29
  30     // unused
  31     (void)client;
  32     (void)freewheel;
  33 }
  34
  35 CARLA_PLUGIN_EXPORT
  36 int jack_set_buffer_size(jack_client_t* client, jack_nframes_t nframes)
  37 {
  38     carla_debug("%s(%p, %u)", __FUNCTION__, client, nframes);
  39
  40     JackClientState* const jclient = (JackClientState*)client;
  41     CARLA_SAFE_ASSERT_RETURN(jclient != nullptr, 0);
  42
  43     return (jclient->server.bufferSize == nframes) ? 0 : 1;
  44 }
  45
  46 CARLA_PLUGIN_EXPORT
  47 jack_nframes_t jack_get_sample_rate(jack_client_t* client)
  48 {
  49     JackClientState* const jclient = (JackClientState*)client;
  50     CARLA_SAFE_ASSERT_RETURN(jclient != nullptr, 0);
  51
  52     return static_cast<jack_nframes_t>(jclient->server.sampleRate);
  53 }
  54
  55 CARLA_PLUGIN_EXPORT
  56 jack_nframes_t jack_get_buffer_size(jack_client_t* client)
  57 {
  58     carla_debug("%s(%p)", __FUNCTION__, client);
  59
  60     JackClientState* const jclient = (JackClientState*)client;
  61     CARLA_SAFE_ASSERT_RETURN(jclient != nullptr, 0);
  62
  63     return jclient->server.bufferSize;
  64 }
  65
  66 CARLA_PLUGIN_EXPORT
  67 float jack_cpu_load(jack_client_t*)
  68 {
  69     // TODO
  70     return 0.0f;
  71 }
  72
  73 // --------------------------------------------------------------------------------------------------------------------