Is the function TFT_invertDisplay() missing the disp_select() ?

[Francois-Belanger]

Great library :-) Just that I had to invert the colour for a new LCD and that function didn't work. I had to change to this.

void TFT_invertDisplay(const uint8_t mode) {
if (disp_select() != ESP_OK) {
printf("TFT_invertDisplay ERROR !!!!\n");
return;
}

if ( mode == INVERT_ON ) disp_spi_transfer_cmd(TFT_INVONN);
else disp_spi_transfer_cmd(TFT_INVOFF);

disp_deselect();
}

Is it ok ?

Thanks for the great work.

[jas39]

Adding disp_select() to TFT_invertDisplay solved my problem. Likely also needed for TFT_setGammaCurve

// Send the command to invert all of the colors.
// Input: i 0 to disable inversion; non-zero to enable inversion
//==========================================
void TFT_invertDisplay(const uint8_t mode) {
if (disp_select() == ESP_OK) {
if ( mode == INVERT_ON ) disp_spi_transfer_cmd(TFT_INVONN);
else disp_spi_transfer_cmd(TFT_INVOFF);
disp_deselect();
}
}

// Select gamma curve
// Input: gamma = 0~3
//==================================
void TFT_setGammaCurve(uint8_t gm) {
uint8_t gamma_curve = 1 << (gm & 0x03);
if (disp_select() == ESP_OK) {
disp_spi_transfer_cmd_data(TFT_CMD_GAMMASET, &gamma_curve, 1);
disp_deselect();
}
}