Rockbox

FS#12454 - Faster line scroll speed

Attached to Project: Rockbox
Opened by Martin Sägmüller (dfkt) - Thursday, 15 December 2011, 12:19 GMT
Last edited by MichaelGiacomelli (saratoga) - Monday, 09 January 2012, 03:26 GMT
Task Type Patches Settings Closed No-one All players Low Normal Release 3.9 Undecided Undecided 0 No

Details

Using the smallest/smoothest scroll step size of 1px, I find the fastest scroll speed of 15 to be too slow on some targets, especially those with larger screens.

This patch adds two faster values to scroll speed, it now goes to 17.

Closed by  MichaelGiacomelli (saratoga)
Monday, 09 January 2012, 03:26 GMT
Reason for closing:  Accepted
Comment by Alexander Levin (fml2) - Saturday, 17 December 2011, 13:25 GMT
Why do the values 2 and 1 correspond to frequencies 41.25 and 51.6? And not 50 and 100? I thought the table is just 1/x.
Comment by Martin Sägmüller (dfkt) - Saturday, 17 December 2011, 14:36 GMT
I thought the table pattern is "* 1.25" Hertz - not sure if I added the right values to the comment - I will of course correct it if it's wrong. Good thing it's just a comment, and the 2 and 1 values indeed provide faster scroll speed. :)
Comment by MichaelGiacomelli (saratoga) - Monday, 09 January 2012, 03:26 GMT
>> f=fit([100, 80, 64, 50, 40, 32, 25, 20, 16, 12, 10, 8, 6, 5, 4, 3]', [1, 1.25, 1.55, 2, 2.5, 3.12, 4, 5, 6.25, 8.33, 10, 12.5, 16.7, 20, 25, 33]', 'rat01')
f =

General model Rat01:
f(x) = (p1) / (x + q1)
Coefficients (with 95% confidence bounds):
p1 = 100.8 (100.3, 101.3)
q1 = 0.04812 (0.02853, 0.06771)