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

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Kouzerumatsu / Bananafox 2023-02-09 22:52:31 +08:00
parent 59071660fc
commit 70c2ad6c06
1 changed files with 2 additions and 1 deletions
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src/ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
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@ -715,7 +715,8 @@ void MatrixPanel_I2S_DMA::brtCtrlOEv2(uint8_t brt, const int _buff_id) {
char rightshift = std::max( bitplane - bitshift - 2, 0 ); char rightshift = std::max( bitplane - bitshift - 2, 0 );
// calculate the OE disable period by brightness, and also blanking // calculate the OE disable period by brightness, and also blanking
int brightness_in_x_pixels = ( ( _width - _blank ) * brt) >> (8 + rightshift); int brightness_in_x_pixels = ( ( _width - _blank ) * brt ) >> ( 7 + rightshift );
brightness_in_x_pixels = ( brightness_in_x_pixels >> 1 ) | ( brightness_in_x_pixels & 1 );
// switch pointer to a row for a specific color index // switch pointer to a row for a specific color index
ESP32_I2S_DMA_STORAGE_TYPE* row = dma_buff.rowBits[row_idx]->getDataPtr(colouridx, _buff_id); ESP32_I2S_DMA_STORAGE_TYPE* row = dma_buff.rowBits[row_idx]->getDataPtr(colouridx, _buff_id);