hw/display: Fix mirrored output in dm163
DM163 is an emulated 8x8 LED matrix. This commit flips the image
horizontally so it's rendered the same way as on the hardware.
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/hw/display/dm163.c b/hw/display/dm163.c
index f92aee3..75a91f6 100644
--- a/hw/display/dm163.c
+++ b/hw/display/dm163.c
@@ -271,7 +271,7 @@
unsigned row)
{
for (unsigned _ = 0; _ < LED_SQUARE_SIZE; _++) {
- for (int x = 0; x < RGB_MATRIX_NUM_COLS * LED_SQUARE_SIZE; x++) {
+ for (int x = RGB_MATRIX_NUM_COLS * LED_SQUARE_SIZE - 1; x >= 0; x--) {
/* UI layer guarantees that there's 32 bits per pixel (Mar 2024) */
*dest++ = s->buffer[s->buffer_idx_of_row[row]][x / LED_SQUARE_SIZE];
}
