add initial structure

1 files changed, 121 insertions, 0 deletions

diff --git a/portaudio/bindings/cpp/source/portaudiocpp/HostApi.cxx b/portaudio/bindings/cpp/source/portaudiocpp/HostApi.cxx
new file mode 100644
index 0000000..6a09670
--- /dev/null
+++ b/portaudio/bindings/cpp/source/portaudiocpp/HostApi.cxx
@@ -0,0 +1,121 @@
+#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