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fix #322: scale bandscope for any number of samples

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retain stretch of bars for short ranges, but after 128,
scale 1:1 to always fill the width of the screen.
This commit is contained in:
John Flinchbaugh
2025-01-07 23:10:48 -05:00
parent d365896abb
commit d0da9ac73c
1 changed files with 2 additions and 1 deletions
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3
app/spectrum.c
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@@ -870,13 +870,14 @@ uint8_t Rssi2Y(uint16_t rssi)
#ifdef ENABLE_FEAT_F4HWN_SPECTRUM #ifdef ENABLE_FEAT_F4HWN_SPECTRUM
static void DrawSpectrum() static void DrawSpectrum()
{ {
uint16_t steps = GetStepsCount();
uint8_t ox = 0; uint8_t ox = 0;
for (uint8_t i = 0; i < 128; ++i) for (uint8_t i = 0; i < 128; ++i)
{ {
uint16_t rssi = rssiHistory[i >> settings.stepsCount]; uint16_t rssi = rssiHistory[i >> settings.stepsCount];
if (rssi != RSSI_MAX_VALUE) if (rssi != RSSI_MAX_VALUE)
{ {
uint8_t x = i * 128 / GetStepsCount(); uint8_t x = i * 128 / ((steps > 128) ? 128 : steps) + 1;
for (uint8_t xx = ox; xx < x; xx++) for (uint8_t xx = ox; xx < x; xx++)
{ {
DrawVLine(Rssi2Y(rssi), DrawingEndY, xx, true); DrawVLine(Rssi2Y(rssi), DrawingEndY, xx, true);