Mercurial > hg > sv-dependency-builds
diff src/portaudio/bindings/cpp/source/portaudiocpp/HostApi.cxx @ 4:e13257ea84a4
Add bzip2, zlib, liblo, portaudio sources
author | Chris Cannam |
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date | Wed, 20 Mar 2013 13:59:52 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/portaudio/bindings/cpp/source/portaudiocpp/HostApi.cxx Wed Mar 20 13:59:52 2013 +0000 @@ -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