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Mouse acceleration options

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git-svn-id: svn://kolibrios.org@5966 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pathoswithin 2015-12-15 17:20:18 +00:00
parent 63cc280c5f
commit 2c4528ee50
1 changed files with 19 additions and 23 deletions
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42
kernel/trunk/hid/mousedrv.inc
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@ -551,39 +551,35 @@ proc set_mouse_data stdcall uses edx, BtnState:dword, XMoving:dword, YMoving:dwo
endp endp
;----------------------------------------------------------------------------- ;-----------------------------------------------------------------------------
; 3 = x^2 /2
; 2 = (x+1)^2 /4
; 1 = (x+2)^2 /8
align 4 align 4
mouse_acceleration: mouse_acceleration:
cmp [mouse_delay], 1 cmp [mouse_delay], 0
jz .slight jz .end
jc .end
push eax push eax
@@: @@:
neg eax neg eax
jl @b jl @b
mov edx, eax cmp [mouse_delay], 3
shr edx, 1 adc eax, 0
jc @f cmp [mouse_delay], 2
mul dl adc eax, 0
add eax, edx mul al
jmp .next shr eax, 1
@@: adc eax, 0
inc edx cmp [mouse_delay], 2
mul dl jz .2
.next: jnc .3
shr eax, 1
.2:
shr eax, 1
.3:
pop edx pop edx
test edx, edx test edx, edx
jns .end jns .end
neg eax neg eax
jmp .end
;--------------------------------------
.slight:
shl eax, 1
js @f
dec eax
jmp .end
@@:
inc eax
.end: .end:
imul [mouse_speed_factor] imul [mouse_speed_factor]
ret ret