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Update ESP32-VirtualMatrixPanel-I2S-DMA.h

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#354 @rigorka contribution
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mrfaptastic 2023-04-16 19:13:40 +01:00 committed by GitHub
parent 8098af9b66
commit ab24a61aba
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1 changed files with 11 additions and 3 deletions
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src/ESP32-VirtualMatrixPanel-I2S-DMA.h
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@ -49,7 +49,8 @@ enum PANEL_SCAN_RATE
NORMAL_TWO_SCAN, NORMAL_TWO_SCAN,
NORMAL_ONE_SIXTEEN, // treated as the same NORMAL_ONE_SIXTEEN, // treated as the same
FOUR_SCAN_32PX_HIGH, FOUR_SCAN_32PX_HIGH,
FOUR_SCAN_16PX_HIGH FOUR_SCAN_16PX_HIGH,
FOUR_SCAN_64PX_HIGH
}; };
// Chaining approach... From the perspective of the DISPLAY / LED side of the chain of panels. // Chaining approach... From the perspective of the DISPLAY / LED side of the chain of panels.
@ -354,12 +355,19 @@ inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t virt_x, int16_t virt_
break; break;
} // end switch } // end switch
/* START: Pixel remapping AGAIN to convert TWO parallel scanline output that the /* START: Pixel remapping AGAIN to convert TWO parallel scanline output that the
* the underlying hardware library is designed for (because * the underlying hardware library is designed for (because
* there's only 2 x RGB pins... and convert this to 1/4 or something * there's only 2 x RGB pins... and convert this to 1/4 or something
*/ */
if (panel_scan_rate == FOUR_SCAN_32PX_HIGH)
if (panel_scan_rate == FOUR_SCAN_64PX_HIGH)
{
// https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-DMA/issues/345#issuecomment-1510401192
if ((virt_y & 8) != ((virt_y & 16) >> 1)) { virt_y = (virt_y & 0b11000) ^ 0b11000 + (virt_y & 0b11100111); }
}
else if (panel_scan_rate == FOUR_SCAN_32PX_HIGH)
{ {
/* Convert Real World 'VirtualMatrixPanel' co-ordinates (i.e. Real World pixel you're looking at /* Convert Real World 'VirtualMatrixPanel' co-ordinates (i.e. Real World pixel you're looking at
on the panel or chain of panels, per the chaining configuration) to a 1/8 panels on the panel or chain of panels, per the chaining configuration) to a 1/8 panels