ScStw/ESP32-HUB75-MatrixPanel-DMA
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Update ESP32-HUB75-MatrixPanel-I2S-DMA.cpp

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mrfaptastic 2021-06-24 17:14:06 +01:00
parent 087e96d0d7
commit c77c4d68ec
1 changed files with 4 additions and 4 deletions
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ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
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@ -687,16 +687,16 @@ void MatrixPanel_I2S_DMA::brtCtrlOE(int brt, const bool _buff_id){
// Brightness control via OE toggle - disable matrix output at specified x_coord // Brightness control via OE toggle - disable matrix output at specified x_coord
if((coloridx > lsbMsbTransitionBit || !coloridx) && ((x_coord) >= brt)){ if((coloridx > lsbMsbTransitionBit || !coloridx) && ((x_coord) >= brt)){
row[x_coord] |= BIT_OE; continue; // For Brightness control row[x_coord] |= BIT_OE; // Disable output after this point.
continue;
} }
// special case for the bits *after* LSB through (lsbMsbTransitionBit) - OE is output after data is shifted, so need to set OE to fractional brightness // special case for the bits *after* LSB through (lsbMsbTransitionBit) - OE is output after data is shifted, so need to set OE to fractional brightness
if(coloridx && coloridx <= lsbMsbTransitionBit) { if(coloridx && coloridx <= lsbMsbTransitionBit) {
// divide brightness in half for each bit below lsbMsbTransitionBit // divide brightness in half for each bit below lsbMsbTransitionBit
int lsbBrightness = brt >> (lsbMsbTransitionBit - coloridx + 1); int lsbBrightness = brt >> (lsbMsbTransitionBit - coloridx + 1);
if((x_coord) >= lsbBrightness) if((x_coord) >= lsbBrightness)
row[x_coord] |= BIT_OE; // For Brightness row[x_coord] |= BIT_OE; // Disable output after this point.
continue;
continue;
} }
// clear OE bit for all other pixels // clear OE bit for all other pixels