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VESA: align the row buffer to a multiple of 4 bytes.
author
H. Peter Anvin
<hpa@zytor.com>
Thu, 14 Feb 2008 08:02:12 +0000
(
00:02
-0800)
committer
H. Peter Anvin
<hpa@zytor.com>
Thu, 14 Feb 2008 08:02:12 +0000
(
00:02
-0800)
We do dword accesses to the row buffer, so align it to 4 bytes.
com32/lib/sys/vesa/screencpy.c
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diff --git
a/com32/lib/sys/vesa/screencpy.c
b/com32/lib/sys/vesa/screencpy.c
index
4972eea
..
a3043fd
100644
(file)
--- a/
com32/lib/sys/vesa/screencpy.c
+++ b/
com32/lib/sys/vesa/screencpy.c
@@
-100,7
+100,7
@@
void __vesacon_copy_to_screen(size_t dst, const uint32_t *src, size_t npixels)
char *win_base = wi.win_base;
size_t l;
size_t bytes = npixels * __vesacon_bytes_per_pixel;
char *win_base = wi.win_base;
size_t l;
size_t bytes = npixels * __vesacon_bytes_per_pixel;
- char rowbuf[bytes+4];
+ char rowbuf[bytes+4]
__aligned(4)
;
const char *s;
s = (const char *)__vesacon_format_pixels(rowbuf, src, npixels);
const char *s;
s = (const char *)__vesacon_format_pixels(rowbuf, src, npixels);