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| author | Hannes Petermaier <oe5hpm@oevsv.at> | 2014-07-15 16:28:46 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2014-08-11 18:07:09 +0200 |
| commit | a305fb155ea3d9c3c3859bd04737e3e260344e4c (patch) | |
| tree | db48cda4bcbc02361a932e567c7232c173caf1f7 /common/lcd.c | |
| parent | 072f210a0d394ba9083323b8bbce6822f1cc2ecb (diff) | |
| download | u-boot-imx-a305fb155ea3d9c3c3859bd04737e3e260344e4c.zip u-boot-imx-a305fb155ea3d9c3c3859bd04737e3e260344e4c.tar.gz u-boot-imx-a305fb155ea3d9c3c3859bd04737e3e260344e4c.tar.bz2 | |
lcd: support displaying 24bpp BMPs on >= 24bpp LCDs
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>
Diffstat (limited to 'common/lcd.c')
| -rw-r--r-- | common/lcd.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/common/lcd.c b/common/lcd.c index c4634fe..217ec9d 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -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) { |