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>
---
hw/display/macfb.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/hw/display/macfb.c b/hw/display/macfb.c
index 0c9e181b9b..29f6ad8eba 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;