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 --- common/lcd.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-)
diff --git a/common/lcd.c b/common/lcd.c index 54bbf9a..82ea73f 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -982,8 +982,13 @@ 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; @@ -1104,7 +1109,19 @@ 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) {