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Beginning of FFT Hold feature

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AlexandreRouma 2022-03-31 15:13:42 +02:00
parent 54dd3a77db
commit 83da29e80b
2 changed files with 43 additions and 0 deletions
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38
core/src/gui/widgets/waterfall.cpp
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@ -77,6 +77,7 @@ namespace ImGui {
lastWidgetSize.x = 0;
lastWidgetSize.y = 0;
latestFFT = new float[1];
latestFFTHold = new float[1];
waterfallFb = new uint32_t[1];
viewBandwidth = 1.0;
@ -97,6 +98,7 @@ namespace ImGui {
char buf[100];
ImU32 trace = ImGui::GetColorU32(ImGuiCol_PlotLines);
ImU32 traceHold = ImGui::ColorConvertFloat4ToU32(ImVec4(1.0, 1.0, 0.0, 1.0));
ImU32 shadow = ImGui::GetColorU32(ImGuiCol_PlotLines, 0.2);
ImU32 text = ImGui::GetColorU32(ImGuiCol_Text);
float textVOffset = 10.0f * style::uiScale;
@ -143,6 +145,18 @@ namespace ImGui {
}
}
// Hold
if (fftHold && latestFFT != NULL && latestFFTHold != NULL && fftLines != 0) {
for (int i = 1; i < dataWidth; i++) {
double aPos = fftAreaMax.y - ((latestFFTHold[i - 1] - fftMin) * scaleFactor);
double bPos = fftAreaMax.y - ((latestFFTHold[i] - fftMin) * scaleFactor);
aPos = std::clamp<double>(aPos, fftAreaMin.y + 1, fftAreaMax.y);
bPos = std::clamp<double>(bPos, fftAreaMin.y + 1, fftAreaMax.y);
window->DrawList->AddLine(ImVec2(fftAreaMin.x + i - 1, roundf(aPos)),
ImVec2(fftAreaMin.x + i, roundf(bPos)), traceHold, 1.0);
}
}
FFTRedrawArgs args;
args.min = fftAreaMin;
args.max = fftAreaMax;
@ -712,11 +726,18 @@ namespace ImGui {
// ==============
}
// Reallocate display FFT
if (latestFFT != NULL) {
delete[] latestFFT;
}
latestFFT = new float[dataWidth];
// Reallocate hold FFT
if (latestFFTHold != NULL) {
delete[] latestFFTHold;
}
latestFFTHold = new float[dataWidth];
if (waterfallVisible) {
delete[] waterfallFb;
waterfallFb = new uint32_t[dataWidth * waterfallHeight];
@ -724,6 +745,7 @@ namespace ImGui {
}
for (int i = 0; i < dataWidth; i++) {
latestFFT[i] = -1000.0; // Hide everything
latestFFTHold[i] = -1000.0;
}
fftAreaMin = ImVec2(widgetPos.x + (50.0f * style::uiScale), widgetPos.y + (9.0f * style::uiScale));
@ -863,6 +885,13 @@ namespace ImGui {
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, selectedVFOSNR);
}
// If FFT hold is enabled, update it
if (fftHold && latestFFT != NULL && latestFFTHold != NULL && fftLines != 0) {
for (int i = 1; i < dataWidth; i++) {
latestFFTHold[i] = std::max<float>(latestFFT[i], latestFFTHold[i] - 0.3f);
}
}
buf_mtx.unlock();
}
@ -1074,6 +1103,15 @@ namespace ImGui {
bandPlanPos = pos;
}
void WaterFall::setFFTHold(bool hold) {
fftHold = hold;
if (fftHold && latestFFTHold) {
for (int i = 0; i < dataWidth; i++) {
latestFFTHold[i] = -1000.0;
}
}
}
void WaterfallVFO::setOffset(double offset) {
generalOffset = offset;
if (reference == REF_CENTER) {

5
core/src/gui/widgets/waterfall.h
View File

@ -176,6 +176,8 @@ namespace ImGui {
void setBandPlanPos(int pos);
void setFFTHold(bool hold);
bool centerFreqMoved = false;
bool vfoFreqChanged = false;
bool bandplanEnabled = false;
@ -307,6 +309,7 @@ namespace ImGui {
int rawFFTSize;
float* rawFFTs = NULL;
float* latestFFT;
float* latestFFTHold;
int currentFFTLine = 0;
int fftLines = 0;
@ -324,6 +327,8 @@ namespace ImGui {
int bandPlanPos = BANDPLAN_POS_BOTTOM;
bool fftHold = false;
// UI Select elements
bool fftResizeSelect = false;
bool freqScaleSelect = false;