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flow effect bugfix

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effect was showing blak when using default palette
This commit is contained in:
Frank
2026-03-03 23:13:34 +01:00
parent a0c0a31480
commit 7f889763d1
2 changed files with 3 additions and 3 deletions
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4
wled00/FX.cpp
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@@ -4488,14 +4488,14 @@ uint16_t mode_flow(void)
int zoneLen = SEGLEN / zones; int zoneLen = SEGLEN / zones;
zones += 2; //add two extra zones to cover beginning and end of segment (compensate integer truncation) zones += 2; //add two extra zones to cover beginning and end of segment (compensate integer truncation)
int offset = ((int)SEGLEN - (zones * zoneLen)) / 2; // center the zones on the segment (can not use bit shift on negative number) int offset = ((int)SEGLEN - (zones * zoneLen)) / 2; // center the zones on the segment (can not use bit shift on negative number)
//SEGMENT.fill(SEGMENT.color_from_palette(-counter, false, true, 255)); SEGMENT.fill(SEGMENT.color_from_palette(-counter, false, true, 255));
for (int z = 0; z < zones; z++) for (int z = 0; z < zones; z++)
{ {
int pos = offset + z * zoneLen; int pos = offset + z * zoneLen;
for (int i = 0; i < zoneLen; i++) for (int i = 0; i < zoneLen; i++)
{ {
unsigned colorIndex = (i * 255 / zoneLen) - counter; uint8_t colorIndex = (i * 255 / zoneLen) - counter;
int led = (z & 0x01) ? i : (zoneLen -1) -i; int led = (z & 0x01) ? i : (zoneLen -1) -i;
if (SEGMENT.reverse) led = (zoneLen -1) -led; if (SEGMENT.reverse) led = (zoneLen -1) -led;
SEGMENT.setPixelColor(pos + led, SEGMENT.color_from_palette(colorIndex, false, true, 255)); SEGMENT.setPixelColor(pos + led, SEGMENT.color_from_palette(colorIndex, false, true, 255));

2
wled00/FX.h
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@@ -725,7 +725,7 @@ typedef struct Segment {
uint8_t get_random_wheel_index(uint8_t pos) const; uint8_t get_random_wheel_index(uint8_t pos) const;
// WLEDMM function moved here (from FX_fcn.cpp) for better optimization by the compiler // WLEDMM function moved here (from FX_fcn.cpp) for better optimization by the compiler
inline uint32_t __attribute__((hot)) color_from_palette(uint_fast16_t i, bool mapping, bool wrap, uint8_t mcol, uint8_t pbri = 255) const { inline uint32_t __attribute__((hot)) color_from_palette(uint_fast16_t i, bool mapping, bool wrap, uint8_t mcol=0, uint8_t pbri = 255) const {
uint32_t color = gamma32(currentColor(mcol, colors[mcol])); uint32_t color = gamma32(currentColor(mcol, colors[mcol]));
// default palette or no RGB support on segment // default palette or no RGB support on segment
if ((palette == 0 && mcol < NUM_COLORS) || !_isRGB) { if ((palette == 0 && mcol < NUM_COLORS) || !_isRGB) {