mirror of
https://github.com/cjcliffe/CubicSDR.git
synced 2024-11-12 07:06:11 -05:00
Adds feature to Swap I/Q
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parent
3efb036099
commit
8496287455
@ -130,8 +130,24 @@ AppFrame::AppFrame() :
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wxMenuBar *menuBar = new wxMenuBar;
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wxMenu *menu = new wxMenu;
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menu->Append(wxID_SET_FREQ_OFFSET, "Set Frequency Offset");
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menu->Append(wxID_SET_PPM, "Set Device PPM");
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menu->Append(wxID_OPEN, "&Open Session");
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menu->Append(wxID_SAVE, "&Save Session");
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menu->Append(wxID_SAVEAS, "Save Session &As..");
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menu->AppendSeparator();
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menu->Append(wxID_RESET, "&Reset Session");
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#ifndef __APPLE__
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menu->AppendSeparator();
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menu->Append(wxID_CLOSE);
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#endif
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menuBar->Append(menu, wxT("&File"));
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menu = new wxMenu;
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menu->Append(wxID_SET_FREQ_OFFSET, "Frequency Offset");
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menu->Append(wxID_SET_PPM, "Device PPM");
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iqSwapMenuItem = menu->AppendCheckItem(wxID_SET_SWAP_IQ, "Swap I/Q");
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wxMenu *dsMenu = new wxMenu;
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@ -141,20 +157,7 @@ AppFrame::AppFrame() :
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menu->AppendSubMenu(dsMenu, "Direct Sampling");
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wxMenu *sessionMenu = new wxMenu;
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sessionMenu->Append(wxID_OPEN, "&Open Session");
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sessionMenu->Append(wxID_SAVE, "&Save Session");
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sessionMenu->Append(wxID_SAVEAS, "Save Session &As..");
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sessionMenu->AppendSeparator();
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sessionMenu->Append(wxID_RESET, "&Reset Session");
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menu->AppendSubMenu(sessionMenu, "Session");
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menu->AppendSeparator();
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menu->Append(wxID_CLOSE);
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menuBar->Append(menu, wxT("&File"));
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menuBar->Append(menu, wxT("&Settings"));
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menu = new wxMenu;
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@ -183,7 +186,7 @@ AppFrame::AppFrame() :
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outputDeviceMenuItems[mdevices_i->first] = itm;
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}
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menuBar->Append(menu, wxT("Active Demodulator &Output"));
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menuBar->Append(menu, wxT("Audio &Output"));
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menu = new wxMenu;
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@ -340,6 +343,10 @@ void AppFrame::OnMenu(wxCommandEvent& event) {
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wxGetApp().setDirectSampling(1);
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} else if (event.GetId() == wxID_SET_DS_Q) {
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wxGetApp().setDirectSampling(2);
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} else if (event.GetId() == wxID_SET_SWAP_IQ) {
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bool swap_state = !wxGetApp().getSwapIQ();
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wxGetApp().setSwapIQ(swap_state);
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iqSwapMenuItem->Check(swap_state);
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} else if (event.GetId() == wxID_SET_PPM) {
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long ofs = wxGetNumberFromUser("Frequency correction for device in PPM.\ni.e. -51 for -51 PPM\n\nNote: you can adjust PPM interactively\nby holding ALT over the frequency tuning bar.\n", "Parts per million (PPM)",
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"Frequency Correction", wxGetApp().getPPM(), -1000, 1000, this);
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@ -19,6 +19,7 @@
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#define wxID_SET_DS_OFF 2004
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#define wxID_SET_DS_I 2005
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#define wxID_SET_DS_Q 2006
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#define wxID_SET_SWAP_IQ 2007
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#define wxID_THEME_DEFAULT 2100
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#define wxID_THEME_SHARP 2101
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@ -78,6 +79,7 @@ private:
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std::map<int, wxMenuItem *> outputDeviceMenuItems;
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std::map<int, wxMenuItem *> sampleRateMenuItems;
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std::map<int, wxMenuItem *> audioSampleRateMenuItems;
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wxMenuItem *iqSwapMenuItem;
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std::string currentSessionFile;
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@ -182,6 +182,14 @@ int CubicSDR::getDirectSampling() {
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return directSamplingMode;
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}
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void CubicSDR::setSwapIQ(bool swapIQ) {
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sdrPostThread->setSwapIQ(swapIQ);
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}
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bool CubicSDR::getSwapIQ() {
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return sdrPostThread->getSwapIQ();
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}
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long long CubicSDR::getFrequency() {
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return frequency;
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}
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@ -40,6 +40,9 @@ public:
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void setDirectSampling(int mode);
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int getDirectSampling();
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void setSwapIQ(bool swapIQ);
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bool getSwapIQ();
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void setSampleRate(long long rate_in);
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long long getSampleRate();
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@ -6,19 +6,21 @@
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#include <deque>
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SDRPostThread::SDRPostThread() :
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iqDataOutQueue(NULL), iqDataInQueue(NULL), iqVisualQueue(NULL), terminated(false), dcFilter(NULL), num_vis_samples(16384*2) {
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iqDataInQueue(NULL), iqDataOutQueue(NULL), iqVisualQueue(NULL), terminated(false), dcFilter(NULL), num_vis_samples(16384*2), swapIQ(false) {
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// create a lookup table
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for (unsigned int i = 0; i <= 0xffff; i++) {
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liquid_float_complex tmp;
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liquid_float_complex tmp,tmp_swap;
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# if (__BYTE_ORDER == __LITTLE_ENDIAN)
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tmp.real = (float(i & 0xff) - 127.4f) * (1.0f/128.0f);
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tmp.imag = (float(i >> 8) - 127.4f) * (1.0f/128.0f);
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tmp_swap.imag = tmp.real = (float(i & 0xff) - 127.4f) * (1.0f/128.0f);
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tmp_swap.real = tmp.imag = (float(i >> 8) - 127.4f) * (1.0f/128.0f);
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_lut.push_back(tmp);
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_lut_swap.push_back(tmp_swap);
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#else // BIG_ENDIAN
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tmp.real = (float(i >> 8) - 127.4f) * (1.0f/128.0f);
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tmp.imag = (float(i & 0xff) - 127.4f) * (1.0f/128.0f);
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tmp_swap.imag = tmp.real = (float(i >> 8) - 127.4f) * (1.0f/128.0f);
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tmp_swap.real = tmp.imag = (float(i & 0xff) - 127.4f) * (1.0f/128.0f);
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_lut.push_back(tmp);
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_lut_swap.push_back(tmp_swap);
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#endif
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}
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}
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@ -64,6 +66,14 @@ int SDRPostThread::getNumVisSamples() {
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return num_vis_samples;
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}
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void SDRPostThread::setSwapIQ(bool swapIQ) {
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this->swapIQ.store(swapIQ);
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}
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bool SDRPostThread::getSwapIQ() {
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return this->swapIQ.load();
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}
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void SDRPostThread::threadMain() {
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int n_read;
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double seconds = 0.0;
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@ -103,9 +113,15 @@ void SDRPostThread::threadMain() {
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dataOut.resize(dataSize);
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}
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for (int i = 0, iMax = dataSize; i < iMax; i++) {
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if (swapIQ) {
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for (int i = 0; i < dataSize; i++) {
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fpData[i] = _lut_swap[*((uint16_t*)&data_in->data[2*i])];
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}
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} else {
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for (int i = 0; i < dataSize; i++) {
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fpData[i] = _lut[*((uint16_t*)&data_in->data[2*i])];
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}
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}
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iirfilt_crcf_execute_block(dcFilter, &fpData[0], dataSize, &dataOut[0]);
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@ -18,6 +18,9 @@ public:
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void setNumVisSamples(int num_vis_samples_in);
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int getNumVisSamples();
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void setSwapIQ(bool swapIQ);
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bool getSwapIQ();
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void threadMain();
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void terminate();
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@ -31,7 +34,9 @@ protected:
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std::atomic<bool> terminated;
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iirfilt_crcf dcFilter;
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int num_vis_samples;
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std::atomic<bool> swapIQ;
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private:
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std::vector<liquid_float_complex> _lut;
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std::vector<liquid_float_complex> _lut_swap;
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};
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