// utility - build the ToneProducer's parameter web
static BParameterWeb* make_parameter_web()
{
FPRINTF(stderr, "make_parameter_web() called\n");
BParameterWeb* web = new BParameterWeb;
BParameterGroup* mainGroup = web->MakeGroup("Tone Generator Parameters");
BParameterGroup* group = mainGroup->MakeGroup("Frequency");
BParameter* nullParam = group->MakeNullParameter(FREQUENCY_NULL_PARAM, B_MEDIA_NO_TYPE, "Frequency", B_GENERIC);
BContinuousParameter* param = group->MakeContinuousParameter(FREQUENCY_PARAM, B_MEDIA_NO_TYPE, "", B_GAIN, "Hz", 0, 2500, 0.1);
nullParam->AddOutput(param);
param->AddInput(nullParam);
group = mainGroup->MakeGroup("Amplitude");
nullParam = group->MakeNullParameter(GAIN_NULL_PARAM, B_MEDIA_NO_TYPE, "Amplitude", B_GENERIC);
param = group->MakeContinuousParameter(GAIN_PARAM, B_MEDIA_NO_TYPE, "", B_GAIN, "", 0, 1, 0.01);
nullParam->AddOutput(param);
param->AddInput(nullParam);
group = mainGroup->MakeGroup("Waveform");
nullParam = group->MakeNullParameter(WAVEFORM_NULL_PARAM, B_MEDIA_NO_TYPE, "Waveform", B_GENERIC);
BDiscreteParameter* waveParam = group->MakeDiscreteParameter(WAVEFORM_PARAM, B_MEDIA_NO_TYPE, "", B_GENERIC);
waveParam->AddItem(SINE_WAVE, "Sine wave");
waveParam->AddItem(TRIANGLE_WAVE, "Triangle");
waveParam->AddItem(SAWTOOTH_WAVE, "Sawtooth");
nullParam->AddOutput(waveParam);
waveParam->AddInput(nullParam);
return web;
}
// build the LoggingConsumer's BParameterWeb
static BParameterWeb* build_parameter_web()
{
BParameterWeb* web = new BParameterWeb;
BParameterGroup* mainGroup = web->MakeGroup("LoggingConsumer Parameters");
BParameterGroup* group = mainGroup->MakeGroup("Latency control");
BParameter* nullParam = group->MakeNullParameter(INPUT_NULL_PARAM, B_MEDIA_NO_TYPE, "Latency", B_GENERIC);
BParameter* latencyParam = group->MakeContinuousParameter(LATENCY_PARAM, B_MEDIA_NO_TYPE, "",
B_GAIN, "ms", 5, 100, 5);
nullParam->AddOutput(latencyParam);
latencyParam->AddInput(nullParam);
group = mainGroup->MakeGroup("CPU percentage");
nullParam = group->MakeNullParameter(CPU_NULL_PARAM, B_MEDIA_NO_TYPE, "CPU spin percentage", B_GENERIC);
BContinuousParameter* cpuParam = group->MakeContinuousParameter(CPU_SPIN_PARAM, B_MEDIA_NO_TYPE, "",
B_GAIN, "percent", 5, 80, 5);
nullParam->AddOutput(cpuParam);
cpuParam->AddInput(nullParam);
group = mainGroup->MakeGroup("Priority");
nullParam = group->MakeNullParameter(PRIO_NULL_PARAM, B_MEDIA_NO_TYPE, "Thread priority", B_GENERIC);
BDiscreteParameter* prioParam = group->MakeDiscreteParameter(PRIORITY_PARAM, B_MEDIA_NO_TYPE, "", B_GENERIC);
prioParam->AddItem(5, "B_LOW_PRIORITY");
prioParam->AddItem(10, "B_NORMAL_PRIORITY");
prioParam->AddItem(15, "B_DISPLAY_PRIORITY");
prioParam->AddItem(20, "B_URGENT_DISPLAY_PRIORITY");
prioParam->AddItem(100, "B_REAL_TIME_DISPLAY_PRIORITY");
prioParam->AddItem(110, "B_URGENT_PRIORITY");
prioParam->AddItem(120, "B_REAL_TIME_PRIORITY");
return web;
}
void
ESDSinkNode::SetParameterValue(int32 id, bigtime_t performance_time, const void* value, size_t size)
{
CALLED();
PRINT(("id : %li, performance_time : %lld, size : %li\n", id, performance_time, size));
BParameter *parameter = NULL;
for(int32 i=0; i<fWeb->CountParameters(); i++) {
parameter = fWeb->ParameterAt(i);
if(parameter->ID() == id)
break;
}
switch (id) {
case PARAM_ENABLED:
if (size != sizeof(bool))
return;
fEnabled = *(bool *)value;
return;
case PARAM_HOST:
{
fprintf(stderr, "set HOST: %s\n", (const char *)value);
fHostname = (const char *)value;
#if 0
if (fDevice && fDevice->Connected()) {
if (fDevice->Connect(fHostname.String(), fPort) >= 0) {
fDevice->SetCommand();
fDevice->SetFormat(ESD_FMT, 2);
//fDevice->GetServerInfo();
fInitCheckStatus = fDevice->SendDefaultCommand();
}
}
#endif
return;
}
case PARAM_PORT:
{
fprintf(stderr, "set PORT: %s\n", (const char *)value);
fPort = atoi((const char *)value);
#if 0
if (fDevice && fDevice->Connected()) {
if (fDevice->Connect(fHostname.String(), fPort) >= 0) {
fDevice->SetCommand();
fDevice->SetFormat(ESD_FMT, 2);
//fDevice->GetServerInfo();
fInitCheckStatus = fDevice->SendDefaultCommand();
}
}
#endif
return;
}
default:
break;
}
}
static bool
parameter_should_be_hidden(BParameter ¶meter)
{
// ToDo: note, this is probably completely stupid, but it's the only
// way I could safely remove the null parameters that are not shown
// by the R5 media theme
if (parameter.Type() != BParameter::B_NULL_PARAMETER
|| strcmp(parameter.Kind(), B_WEB_PHYSICAL_INPUT))
return false;
for (int32 i = 0; i < parameter.CountOutputs(); i++) {
if (!strcmp(parameter.OutputAt(0)->Kind(), B_INPUT_MUX))
return true;
}
return false;
}
status_t
ESDSinkNode::GetParameterValue(int32 id, bigtime_t* last_change, void* value, size_t* ioSize)
{
CALLED();
if (!fDevice)
return B_ERROR;
//PRINT(("id : %i\n", id));
switch (id) {
case PARAM_ENABLED:
if (*ioSize < sizeof(bool))
return B_NO_MEMORY;
*(bool *)value = fEnabled;
*ioSize = sizeof(bool);
return B_OK;
case PARAM_HOST:
{
BString s = fDevice->Host();
*ioSize = MIN(*ioSize, s.Length());
memcpy(value, s.String(), *ioSize);
return B_OK;
}
case PARAM_PORT:
{
BString s;
s << fDevice->Port();
*ioSize = MIN(*ioSize, s.Length());
memcpy(value, s.String(), *ioSize);
return B_OK;
}
default:
break;
}
#if 0
BParameter *parameter = NULL;
for(int32 i=0; i<fWeb->CountParameters(); i++) {
parameter = fWeb->ParameterAt(i);
if(parameter->ID() == id)
break;
}
#endif
return EINVAL;
}
void VirtualRenderer::SetFilterParameters(media_node node, parameter_list *list)
{
BParameterWeb *web;
BParameterGroup *group;
BParameter *param;
int i, j;
parameter_list_elem *elem;
BMediaRoster::Roster()->GetParameterWebFor(node, &web);
group = web->GroupAt(0);
for (i = 0; i < group->CountParameters(); i++)
{
param = group->ParameterAt(i);
for (j = 0; j < list->CountItems(); j++)
{
elem = list->ItemAt(j);
if (elem->id == param->ID())
{
param->SetValue(elem->value, elem->value_size, system_time());
break;
}
}
}
}
status_t
ESDSinkNode::GetConfigurationFor(BMessage * into_message)
{
CALLED();
BParameter *parameter = NULL;
void *buffer;
size_t size = 128;
bigtime_t last_change;
status_t err;
if (!into_message)
return B_BAD_VALUE;
buffer = malloc(size);
for(int32 i=0; i<fWeb->CountParameters(); i++) {
parameter = fWeb->ParameterAt(i);
if(parameter->Type() != BParameter::B_CONTINUOUS_PARAMETER
&& parameter->Type() != BParameter::B_DISCRETE_PARAMETER)
continue;
PRINT(("getting parameter %li\n", parameter->ID()));
size = 128;
while((err = GetParameterValue(parameter->ID(), &last_change, buffer, &size))==B_NO_MEMORY) {
size += 128;
free(buffer);
buffer = malloc(size);
}
if(err == B_OK && size > 0) {
into_message->AddInt32("parameterID", parameter->ID());
into_message->AddData("parameterData", B_RAW_TYPE, buffer, size, false);
} else {
PRINT(("parameter %li err : %s\n", parameter->ID(), strerror(err)));
}
}
//PRINT_OBJECT(*into_message);
return B_OK;
}
status_t
Controller::ConnectInterface(int i)
{
if (i < 0) {
printf("Controller::ConnectInterface: wrong index\n");
return B_ERROR;
}
if (fCurrentInterface != -1) {
printf("Controller::ConnectInterface: already connected\n");
return B_ERROR;
}
BParameterWeb *web;
status_t err;
err = gDeviceRoster->MediaRoster()->GetParameterWebFor(gDeviceRoster->DeviceNode(i), &web);
if (err != B_OK) {
printf("Controller::ConnectInterface: can't get parameter web\n");
return B_ERROR;
}
delete fWeb;
fWeb = web;
fCurrentInterface = i;
// XXX we may need to monitor for parameter web changes
// and reassing fWeb and fChannelParam on demand.
// find the channel control and assign it to fChannelParam
fChannelParam = NULL;
int count = fWeb->CountParameters();
for (int i = 0; i < count; i++) {
BParameter *parameter = fWeb->ParameterAt(i);
printf("parameter %d\n", i);
printf(" name '%s'\n", parameter->Name());
printf(" kind '%s'\n", parameter->Kind());
printf(" unit '%s'\n", parameter->Unit());
printf(" flags 0x%08" B_PRIx32 "\n", parameter->Flags());
// XXX TODO: matching on Name is weak
if (strcmp(parameter->Name(), "Channel") == 0 || strcmp(parameter->Kind(), B_TUNER_CHANNEL) == 0) {
fChannelParam = dynamic_cast<BDiscreteParameter *>(parameter);
if (fChannelParam)
break;
}
}
if (!fChannelParam) {
printf("Controller::ConnectInterface: can't find channel parameter control\n");
fCurrentChannel = -1;
} else {
if (fChannelParam->CountItems() == 0) {
fCurrentChannel = -1;
printf("Controller::ConnectInterface: channel control has 0 items\n");
} else {
int32 index;
size_t size;
status_t err;
bigtime_t when;
size = sizeof(index);
err = fChannelParam->GetValue(&index, &size, &when);
if (err == B_OK && size == sizeof(index)) {
fCurrentChannel = index;
printf("Controller::ConnectInterface: selected channel is %d\n", fCurrentChannel);
} else {
fCurrentChannel = -1;
printf("Controller::ConnectInterface: can't get channel control value\n");
}
}
}
ConnectNodes();
return B_OK;
}