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#include "portaudiocpp/HostApi.hxx"
#include "portaudiocpp/System.hxx"
#include "portaudiocpp/Device.hxx"
#include "portaudiocpp/SystemDeviceIterator.hxx"
#include "portaudiocpp/Exception.hxx"
namespace portaudio
{
// -----------------------------------------------------------------------------------
HostApi::HostApi(PaHostApiIndex index) : devices_(NULL)
{
try
{
info_ = Pa_GetHostApiInfo(index);
// Create and populate devices array:
int numDevices = deviceCount();
devices_ = new Device*[numDevices];
for (int i = 0; i < numDevices; ++i)
{
PaDeviceIndex deviceIndex = Pa_HostApiDeviceIndexToDeviceIndex(index, i);
if (deviceIndex < 0)
{
throw PaException(deviceIndex);
}
devices_[i] = &System::instance().deviceByIndex(deviceIndex);
}
}
catch (const std::exception &e)
{
// Delete any (partially) constructed objects (deconstructor isn't called):
delete[] devices_; // devices_ is either NULL or valid
// Re-throw exception:
throw e;
}
}
HostApi::~HostApi()
{
// Destroy devices array:
delete[] devices_;
}
// -----------------------------------------------------------------------------------
PaHostApiTypeId HostApi::typeId() const
{
return info_->type;
}
PaHostApiIndex HostApi::index() const
{
PaHostApiIndex index = Pa_HostApiTypeIdToHostApiIndex(typeId());
if (index < 0)
throw PaException(index);
return index;
}
const char *HostApi::name() const
{
return info_->name;
}
int HostApi::deviceCount() const
{
return info_->deviceCount;
}
// -----------------------------------------------------------------------------------
HostApi::DeviceIterator HostApi::devicesBegin()
{
DeviceIterator tmp;
tmp.ptr_ = &devices_[0]; // begin (first element)
return tmp;
}
HostApi::DeviceIterator HostApi::devicesEnd()
{
DeviceIterator tmp;
tmp.ptr_ = &devices_[deviceCount()]; // end (one past last element)
return tmp;
}
// -----------------------------------------------------------------------------------
Device &HostApi::defaultInputDevice() const
{
return System::instance().deviceByIndex(info_->defaultInputDevice);
}
Device &HostApi::defaultOutputDevice() const
{
return System::instance().deviceByIndex(info_->defaultOutputDevice);
}
// -----------------------------------------------------------------------------------
bool HostApi::operator==(const HostApi &rhs) const
{
return (typeId() == rhs.typeId());
}
bool HostApi::operator!=(const HostApi &rhs) const
{
return !(*this == rhs);
}
// -----------------------------------------------------------------------------------
} // namespace portaudio
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