diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2021-10-07 23:12:51 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2021-10-08 13:31:03 +0200 |
| commit | 432d59c56ef8a8eaefd847a40a01439e32317bff (patch) | |
| tree | 61e8e0ef23235a76f502127015ddc0a5c61a4468 /hw/display/macfb.c | |
| parent | 57eeaf44ce6964e6e86275318f5fc35610c1dc68 (diff) | |
macfb: fix 24-bit RGB pixel encoding
According to Apple Technical Note HW26: "Macintosh Quadra Built-In Video" the
in-built framebuffer encodes each 24-bit pixel into 4 bytes. Adjust the 24-bit
RGB pixel encoding accordingly which agrees with the encoding expected by MacOS
when changing into 24-bit colour mode.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20211007221253.29024-12-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'hw/display/macfb.c')
| -rw-r--r-- | hw/display/macfb.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/hw/display/macfb.c b/hw/display/macfb.c index e49c8b6f4b..3288a71b89 100644 --- a/hw/display/macfb.c +++ b/hw/display/macfb.c @@ -224,10 +224,10 @@ static void macfb_draw_line24(MacfbState *s, uint8_t *d, uint32_t addr, int x; for (x = 0; x < width; x++) { - r = macfb_read_byte(s, addr); - g = macfb_read_byte(s, addr + 1); - b = macfb_read_byte(s, addr + 2); - addr += 3; + r = macfb_read_byte(s, addr + 1); + g = macfb_read_byte(s, addr + 2); + b = macfb_read_byte(s, addr + 3); + addr += 4; *(uint32_t *)d = rgb_to_pixel32(r, g, b); d += 4; |