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Add support for setting host parameters in OSC

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This is meant to be used by e.g. small electronic widgets providing live values from potentiometers, switches, …
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Stephane Alnet 2023-02-09 22:06:16 +01:00 • committed by falkTX
parent 76d0cd31aa
commit 61796c3179
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1 changed files with 27 additions and 0 deletions
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27
src/CardinalCommon.cpp
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@ -310,6 +310,32 @@ static int osc_param_handler(const char*, const char* types, lo_arg** argv, int
return 0;
}
static int osc_host_param_handler(const char*, const char* types, lo_arg** argv, int argc, const lo_message m, void* const self)
{
d_debug("osc_host_param_handler()");
DISTRHO_SAFE_ASSERT_RETURN(argc == 2, 0);
DISTRHO_SAFE_ASSERT_RETURN(types != nullptr, 0);
DISTRHO_SAFE_ASSERT_RETURN(types[0] == 'i', 0);
DISTRHO_SAFE_ASSERT_RETURN(types[1] == 'f', 0);
if (CardinalBasePlugin* const plugin = static_cast<Initializer*>(self)->remotePluginInstance)
{
CardinalPluginContext* const context = plugin->context;
const int paramId = argv[0]->i;
DISTRHO_SAFE_ASSERT_RETURN(paramId >= 0, 0);
const uint uparamId = static_cast<uint>(paramId);
DISTRHO_SAFE_ASSERT_UINT2_RETURN(uparamId < kModuleParameterCount, uparamId, kModuleParameterCount, 0);
const float paramValue = argv[1]->f;
context->parameters[uparamId] = paramValue;
}
return 0;
}
static int osc_screenshot_handler(const char*, const char* types, lo_arg** argv, int argc, const lo_message m, void* const self)
{
d_debug("osc_screenshot_handler()");
@ -483,6 +509,7 @@ Initializer::Initializer(const CardinalBasePlugin* const plugin, const CardinalB
DISTRHO_SAFE_ASSERT_RETURN(oscServerThread != nullptr,);
lo_server_thread_add_method(oscServerThread, "/hello", "", osc_hello_handler, this);
lo_server_thread_add_method(oscServerThread, "/host-param", "if", osc_host_param_handler, this);
lo_server_thread_add_method(oscServerThread, "/load", "b", osc_load_handler, this);
lo_server_thread_add_method(oscServerThread, "/param", "hif", osc_param_handler, this);
lo_server_thread_add_method(oscServerThread, "/screenshot", "b", osc_screenshot_handler, this);