diff mbox series

[PULL,09/22] hw/display: Fix mirrored output in dm163

Message ID 20240920074134.664961-10-mjt@tls.msk.ru
State New
Headers show
Series [PULL,01/22] mark <zlib.h> with for-crc32 in a consistent manner | expand

Commit Message

Michael Tokarev Sept. 20, 2024, 7:41 a.m. UTC 
From: Inès Varhol <ines.varhol@telecom-paris.fr>

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>
---
 hw/display/dm163.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/display/dm163.c b/hw/display/dm163.c
index f92aee371d..75a91f62bd 100644
--- a/hw/display/dm163.c
+++ b/hw/display/dm163.c
@@ -271,7 +271,7 @@  static uint32_t *update_display_of_row(DM163State *s, uint32_t *dest,
                                        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];
         }