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fix the peak trace line running out of sync with the waterfall due to 793df68b

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This commit is contained in:
Erik Bročko
2026-04-09 11:37:39 +02:00
parent bbdab305aa
commit d2ca7e745e
3 changed files with 50 additions and 30 deletions
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18
src/ui/Application.cpp
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@@ -316,6 +316,10 @@ void Application::processAudio() {
// Push ALL new spectra to the waterfall so that the scroll rate
// is determined by the audio sample rate, not the display refresh.
int curCh = std::clamp(ui_.waterfallChannel, 0, nSpec - 1);
const auto& traceHist = audio_.getWaterfallHistory(curCh);
int traceHistSz = static_cast<int>(traceHist.size());
if (ui_.waterfallMultiCh && nSpec > 1) {
// For multi-channel: replay the last spectraThisFrame entries
// from channel 0's history to get per-step data. Other
@@ -353,16 +357,22 @@ void Application::processAudio() {
}
}
waterfall_.pushLineMulti(wfSpectra, wfInfo, ui_.minDB, ui_.maxDB);
// Push peak trace entry synchronized with each waterfall line.
int tIdx = std::max(0, traceHistSz - (histSz - si));
measurements_.pushPeakTrace(traceHist[tIdx],
settings.sampleRate, settings.isIQ, settings.fftSize);
}
} else {
int wfCh = std::clamp(ui_.waterfallChannel, 0, nSpec - 1);
const auto& hist = audio_.getWaterfallHistory(wfCh);
const auto& hist = audio_.getWaterfallHistory(curCh);
int histSz = static_cast<int>(hist.size());
int start = std::max(0, histSz - spectraThisFrame);
for (int si = start; si < histSz; ++si)
for (int si = start; si < histSz; ++si) {
waterfall_.pushLine(hist[si], ui_.minDB, ui_.maxDB);
measurements_.pushPeakTrace(hist[si],
settings.sampleRate, settings.isIQ, settings.fftSize);
}
}
int curCh = std::clamp(ui_.waterfallChannel, 0, nSpec - 1);
cursors_.update(audio_.getSpectrum(curCh),
settings.sampleRate, settings.isIQ, settings.fftSize);
measurements_.update(audio_.getSpectrum(curCh),