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u-boot: BMP_LOGO tool fixes 

This patch fixes two issues:
  * width of bitmap has to be aligned to 4 (otherwise padding bytes
    will be added and bitmap will be not properly displayed)
  * size of bitmap can't be bigger than 65535 (LCD on Sciphone G2
    is 240x320 = 76800)

Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com>
This commit is contained in:
Marcin Mielczarczyk 2010-12-03 17:30:03 +01:00
parent 57d77b82a3
commit 2677c839bb
1 changed files with 8 additions and 2 deletions
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10
tools/bmp_logo.c
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@ -41,7 +41,7 @@ int error (char * msg, FILE *fp)
int main (int argc, char *argv[])
{
int i, x;
int i, x, padding;
FILE *fp;
bitmap_t bmp;
bitmap_t *b = &bmp;
@ -138,11 +138,17 @@ int main (int argc, char *argv[])
printf ("};\n");
printf ("\n");
printf ("unsigned char bmp_logo_bitmap[] = {\n");
/* check if there will be any padding bytes in bitmap */
padding = (b->width % 4) ? (4 - (b->width % 4)) : 0;
for (i=(b->height-1)*b->width; i>=0; i-=b->width) {
for (x = 0; x < b->width; x++) {
b->data[(uint16_t) i + x] = (uint8_t) fgetc (fp) \
b->data[i + x] = (uint8_t) fgetc (fp) \
+ DEFAULT_CMAP_SIZE;
}
for (x = 0; x < padding; ++x)
/* read padding bytes if any */
fgetc(fp);
}
fclose (fp);