T GetParam(PvGenParameterArray* params, const char* name)
{
typedef typename PleoraParamTraits<T>::PvType PvType;
PvType* param = dynamic_cast<PvType*>( params->Get(name) );
if(!param) {
throw std::runtime_error("Incorrect type");
}
T ret;
PvResult res = param->GetValue(ret);
if(res.IsFailure()) {
throw std::runtime_error("Cannot get value: " + std::string(res.GetCodeString().GetAscii()) );
}
return ret;
}
bool SetParam(PvGenParameterArray* params, const char* name, T val)
{
typedef typename PleoraParamTraits<T>::PvType PvType;
PvType* param = dynamic_cast<PvType*>( params->Get(name) );
if(!param) {
throw std::runtime_error("Unable to get parameter handle: " + std::string(name) );
}
if(!param->IsWritable()) {
throw std::runtime_error("Cannot set value for " + std::string(name) );
}
PvResult res = param->SetValue(val);
if(res.IsFailure()) {
throw std::runtime_error("Cannot set value: " + std::string(res.GetCodeString().GetAscii()) );
}
return true;
}
PleoraVideo::PleoraVideo(const char* model_name, const char* serial_num, size_t index, size_t bpp, size_t binX, size_t binY, size_t buffer_count,
size_t desired_size_x, size_t desired_size_y, size_t desired_pos_x, size_t desired_pos_y)
: lPvSystem(0), lDevice(0), lStream(0)
{
lPvSystem = new PvSystem();
if ( !lPvSystem ) {
throw pangolin::VideoException("Pleora: Unable to create PvSystem");
}
const PvDeviceInfo *lDeviceInfo = SelectDevice(*lPvSystem, model_name, serial_num, index);
if ( !lDeviceInfo ) {
throw pangolin::VideoException("Pleora: Unable to select device");
}
PvResult lResult;
lDevice = PvDevice::CreateAndConnect( lDeviceInfo, &lResult );
if ( !lDevice ) {
throw pangolin::VideoException("Pleora: Unable to connect to device", lResult.GetDescription().GetAscii() );
}
lStream = PvStream::CreateAndOpen( lDeviceInfo->GetConnectionID(), &lResult );
if ( !lStream ) {
lDevice->Disconnect();
PvDevice::Free(lDevice);
throw pangolin::VideoException("Pleora: Unable to open stream", lResult.GetDescription().GetAscii() );
}
lDeviceParams = lDevice->GetParameters();
lStart = dynamic_cast<PvGenCommand*>( lDeviceParams->Get( "AcquisitionStart" ) );
lStop = dynamic_cast<PvGenCommand*>( lDeviceParams->Get( "AcquisitionStop" ) );
if( bpp == 8) {
lDeviceParams->SetEnumValue("PixelFormat", PvString("Mono8") );
}else if(bpp == 10) {
lDeviceParams->SetEnumValue("PixelFormat", PvString("Mono10p") );
}else if(bpp == 12) {
lDeviceParams->SetEnumValue("PixelFormat", PvString("Mono12p") );
}
// Height and width will fail if not multiples of 8.
lDeviceParams->SetIntegerValue("Height", desired_size_y );
if(lResult.IsFailure()){
pango_print_error("Height %zu fail\n", desired_size_y);
int64_t max, min;
lDeviceParams->GetIntegerRange("Height", max, min );
lDeviceParams->SetIntegerValue("Height", max );
}
lDeviceParams->SetIntegerValue("Width", desired_size_x );
if(lResult.IsFailure()){
pango_print_error("Width %zu fail\n", desired_size_x);
int64_t max, min;
lDeviceParams->GetIntegerRange("Width", max, min );
lDeviceParams->SetIntegerValue("Width", max );
}
lDeviceParams = lDevice->GetParameters();
const int w = DeviceParam<int64_t>("Width");
const int h = DeviceParam<int64_t>("Height");
// Offset will fail if not multiple of 8.
lDeviceParams->SetIntegerValue("OffsetX", desired_pos_x );
if(lResult.IsFailure()){
pango_print_error("OffsetX %zu fail\n", desired_pos_x);
}
lDeviceParams->SetIntegerValue("OffsetX", desired_pos_y );
if(lResult.IsFailure()){
pango_print_error("OffsetY %zu fail\n", desired_pos_y);
}
lResult =lDeviceParams->SetIntegerValue("BinningHorizontal", binX );
if(lResult.IsFailure()){
pango_print_error("BinningHorizontal %zu fail\n", binX);
}
lResult =lDeviceParams->SetIntegerValue("BinningVertical", binY );
if(lResult.IsFailure()){
pango_print_error("BinningVertical %zu fail\n", binY);
}
lStreamParams = lStream->GetParameters();
// Reading payload size from device
const uint32_t lSize = lDevice->GetPayloadSize();
// Use buffer_count or the maximum number of buffers, whichever is smaller
const uint32_t lBufferCount = ( lStream->GetQueuedBufferMaximum() < buffer_count ) ?
lStream->GetQueuedBufferMaximum() :
buffer_count;
// Allocate buffers and queue
for ( uint32_t i = 0; i < lBufferCount; i++ )
{
PvBuffer *lBuffer = new PvBuffer;
lBuffer->Alloc( static_cast<uint32_t>( lSize ) );
lBufferList.push_back( lBuffer );
}
// Setup pangolin for stream
PvGenEnum* lpixfmt = dynamic_cast<PvGenEnum*>( lDeviceParams->Get("PixelFormat") );
const VideoPixelFormat fmt = PleoraFormat(lpixfmt);
streams.push_back(StreamInfo(fmt, w, h, (w*fmt.bpp)/8));
size_bytes = lSize;
Start();
}