From 8dee3145bfa7669a79d7bb4c3ae5c77d47c32e62 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 23 Jun 2015 16:54:47 +0200 Subject: bmp support: Use unaligned accessors Some fields in the bmp header are unaligned. Use unaligned accessor functions to acces them. Signed-off-by: Sascha Hauer --- lib/gui/bmp.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/lib/gui/bmp.c b/lib/gui/bmp.c index 6943a1c8e0..d457c01d84 100644 --- a/lib/gui/bmp.c +++ b/lib/gui/bmp.c @@ -7,6 +7,7 @@ #include #include #include +#include struct image *bmp_open(char *inbuf, int insize) { @@ -19,9 +20,9 @@ struct image *bmp_open(char *inbuf, int insize) } img->data = inbuf; - img->height = le32_to_cpu(bmp->header.height); - img->width = le32_to_cpu(bmp->header.width); - img->bits_per_pixel = le16_to_cpu(bmp->header.bit_count); + img->height = get_unaligned_le32(&bmp->header.height); + img->width = get_unaligned_le32(&bmp->header.width); + img->bits_per_pixel = get_unaligned_le16(&bmp->header.bit_count); pr_debug("bmp: %d x %d x %d data@0x%p\n", img->width, img->height, img->bits_per_pixel, img->data); @@ -76,7 +77,7 @@ static int bmp_renderer(struct screen *sc, struct surface *s, struct image *img) for (y = 0; y < height; y++) { image = (char *)bmp + - le32_to_cpu(bmp->header.data_offset); + get_unaligned_le32(&bmp->header.data_offset); image += (img->height - y - 1) * img->width * (bits_per_pixel >> 3); adr = buf + (y + starty) * sc->info.line_length + startx * (sc->info.bits_per_pixel >> 3); @@ -98,7 +99,7 @@ static int bmp_renderer(struct screen *sc, struct surface *s, struct image *img) for (y = 0; y < height; y++) { image = (char *)bmp + - le32_to_cpu(bmp->header.data_offset); + get_unaligned_le32(&bmp->header.data_offset); image += (img->height - y - 1) * img->width * (bits_per_pixel >> 3); adr = buf + (y + starty) * sc->info.line_length + startx * (sc->info.bits_per_pixel >> 3); -- cgit v1.2.3