GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-21 06:31:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

lcd: support displaying 24bpp BMPs on >= 24bpp LCDs

Browse source 
most todays LCDs support 32bpp e.g. the framebuffer memory is 32bpp
organized.

To support 24bpp BMPs we need to take only 3 byte from the bpp and set
one byte from the FB to 0.

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
This commit is contained in:
Hannes Petermaier 2014-07-15 16:28:46 +02:00 • committed by Anatolij Gustschin
parent 072f210a0d
commit a305fb155e
1 changed files with 20 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
common/lcd.c
View file

@ -942,8 +942,13 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
return 1;
}
/* We support displaying 8bpp BMPs on 16bpp LCDs */
if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
/*
* We support displaying 8bpp BMPs on 16bpp LCDs
* and displaying 24bpp BMPs on 32bpp LCDs
* */
if (bpix != bmp_bpix &&
!(bmp_bpix == 8 && bpix == 16) &&
!(bmp_bpix == 24 && bpix == 32)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix, get_unaligned_le16(&bmp->header.bit_count));
return 1;
@ -1064,7 +1069,19 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
}
break;
#endif /* CONFIG_BMP_16BPP */
#if defined(CONFIG_BMP_24BMP)
case 24:
for (i = 0; i < height; ++i) {
for (j = 0; j < width; j++) {
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = 0;
}
fb -= lcd_line_length + width * (bpix / 8);
}
break;
#endif /* CONFIG_BMP_24BMP */
#if defined(CONFIG_BMP_32BPP)
case 32:
for (i = 0; i < height; ++i) {