1
0
Fork 0
forked from len0rd/rockbox

Slightly better precision.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10419 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-02 20:57:40 +00:00
parent 344849cc22
commit fd9bd310a2

View file

@ -438,7 +438,7 @@ int gray_init(struct plugin_api* newrb, unsigned char *gbuf, long gbuf_size,
{
for (i = 0; i < 256; i++)
{
data = exp_s16p16(gamma * (log_s16p16(i * 257 + 1) >> 8));
data = exp_s16p16((gamma * log_s16p16(i * 257 + 1)) >> 8);
data = (data - (data >> 8)) >> 8; /* approx. data /= 257 */
data = MULU16(depth, lcdlinear[data]) + 127;
_gray_info.idxtable[i] = (data + (data >> 8)) >> 8;