| Message ID | 20240915125725.33099-1-ines.varhol@telecom-paris.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw/display: Fix mirrored output in dm163 | expand |
On 15.09.2024 15:57, Inès Varhol wrote: > DM163 is an emulated 8x8 LED matrix. This commit flips the image > horizontally so it's rendered the same way as on the hardware. Picked this one up for trivial-patches, as it is, - I've no idea if it is correct or not :) This is an interesting device, I wonder if it is used by anyone? Thanks, /mjt
On Tue, 17 Sept 2024 at 10:11, Michael Tokarev <mjt@tls.msk.ru> wrote: > > On 15.09.2024 15:57, Inès Varhol wrote: > > DM163 is an emulated 8x8 LED matrix. This commit flips the image > > horizontally so it's rendered the same way as on the hardware. > > Picked this one up for trivial-patches, as it is, - > I've no idea if it is correct or not :) > > This is an interesting device, I wonder if it is used by anyone? The device is used by the Arm b-l475e-iot01a board. thanks -- PMM
On 17.09.2024 12:39, Peter Maydell wrote: >> This is an interesting device, I wonder if it is used by anyone? > > The device is used by the Arm b-l475e-iot01a board. I mean if it is actually used in practice, - there's just 1 commit for this file - it's addition in Apr this year, and that's all. If the image is inverted, I wonder how it worked and no one noticed :) There's no problem with that, anyway. Thanks, /mjt
On Tue, 17 Sept 2024 at 10:54, Michael Tokarev <mjt@tls.msk.ru> wrote: > > On 17.09.2024 12:39, Peter Maydell wrote: > > >> This is an interesting device, I wonder if it is used by anyone? > > > > The device is used by the Arm b-l475e-iot01a board. > > I mean if it is actually used in practice, - there's just 1 commit > for this file - it's addition in Apr this year, and that's all. > If the image is inverted, I wonder how it worked and no one > noticed :) This is a fairly new board, and the authors are gradually adding its devices. -- PMM
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]; }
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> --- hw/display/dm163.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)