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Another small optimisation/simplification to the hex_to_rgb() function.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16729 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2008-03-21 14:04:19 +00:00
parent e92d2c51ed
commit a96a733c7a
1 changed files with 13 additions and 18 deletions
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31
apps/misc.c
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@ -1099,28 +1099,23 @@ static int hex2dec(int c)
}
int hex_to_rgb(const char* hex, int* color)
{ int ok = 1;
int i;
{
int red, green, blue;
int i = 0;
if (strlen(hex) == 6) {
for (i=0; i < 6; i++ ) {
if (!isxdigit(hex[i])) {
ok=0;
break;
}
}
while ((i < 6) && (isxdigit(hex[i])))
i++;
if (ok) {
red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]);
green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]);
blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]);
*color = LCD_RGBPACK(red,green,blue);
return 0;
}
}
if (i < 6)
return -1;
return -1;
red = (hex2dec(hex[0]) << 4) | hex2dec(hex[1]);
green = (hex2dec(hex[2]) << 4) | hex2dec(hex[3]);
blue = (hex2dec(hex[4]) << 4) | hex2dec(hex[5]);
*color = LCD_RGBPACK(red,green,blue);
return 0;
}
#endif /* HAVE_LCD_COLOR */