On Sat, Mar 08, 2014 at 07:55:52AM -0700, Eric Nelson wrote:
.bmp files contain 32-bit integers aligned at offsets of +2, +6, et cetera within the bmp_header structure (see include/bmp_layout.h).
Support for gzip-compressed .bmp files is present in the cfb_console display subsystem by uncompressing them prior to use.
This patch forces the in-memory header to be aligned properly for these compressed images by extracting them to a 2-byte offset in the memory returned by malloc. Since malloc will always return a 4-byte aligned value, this forces the .bmp header fields to be naturally aligned on 4-byte addresses.
Refer to these files for more details: doc/README.displaying-bmps doc/README.arm-unaligned-accesses
Signed-off-by: Eric Nelson eric.nelson@boundarydevices.com
Applied to u-boot/master, thanks!
