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Add gzipped logo support

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The README file states that CONFIG_VIDEO_BMP_GZIP behaves as follows:

  If this option is set, additionally to standard BMP
  images, gzipped BMP images can be displayed via the
  splashscreen support or the bmp command.

However, the splashscreen function *only* supports standard BMP images.

This patch adds the documented gzip support.

Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
This commit is contained in:
Mark Jackson 2008-07-31 16:09:00 +01:00 committed by Wolfgang Denk
parent a5bcb01fbd
commit a48311557d
1 changed files with 13 additions and 0 deletions
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13
common/lcd.c
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@ -740,6 +740,9 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
}
#endif
#ifdef CONFIG_VIDEO_BMP_GZIP
extern bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp);
#endif
static void *lcd_logo (void)
{
@ -761,6 +764,16 @@ static void *lcd_logo (void)
addr = simple_strtoul(s, NULL, 16);
do_splash = 0;
#ifdef CONFIG_VIDEO_BMP_GZIP
bmp_image_t *bmp = (bmp_image_t *)addr;
unsigned long len;
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M'))) {
addr = (ulong)gunzip_bmp(addr, &len);
}
#endif
if (lcd_display_bitmap (addr, 0, 0) == 0) {
return ((void *)lcd_base);
}