djsundog
/
circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nrf5/drivers: Optimizing update_line in ili9341 driver a bit.

This commit is contained in:
Glenn Ruben Bakke 2017-01-21 21:22:02 +01:00
parent c1a609653f
commit e52ec39120
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
nrf5/drivers/display/lcd_ili9341_driver.c
View File

@ -236,8 +236,8 @@ void driver_ili9341_update_line(uint16_t line, framebuffer_byte_t * p_bytes, uin
mp_hal_pin_low(mp_cs_pin); mp_hal_pin_low(mp_cs_pin);
for (uint16_t i = 0; i < len; i++) { for (uint16_t i = 0; i < len; i++) {
uint8_t byte = (uint8_t)((uint8_t *)p_bytes)[i];
for (uint8_t pixel_pos = 0; pixel_pos < 8; pixel_pos++) { for (uint8_t pixel_pos = 0; pixel_pos < 8; pixel_pos++) {
uint8_t byte = (uint8_t)((uint8_t * )p_bytes)[i];
if (((byte >> pixel_pos) & 0x1) == 0x0) { if (((byte >> pixel_pos) & 0x1) == 0x0) {
data_write(0x00); data_write(0x00);
data_write(0x00); data_write(0x00);