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dinput: Fix condition effect joystick offset calculation. 

Signed-off-by: Andrew Eikum <aeikum@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Andrew Eikum 2016-03-14 11:39:48 -05:00 committed by Alexandre Julliard
parent 2efaddc74e
commit 9934124917
1 changed files with 14 additions and 5 deletions
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19
dlls/dinput/effect_linuxinput.c
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@ -67,6 +67,11 @@ static inline LinuxInputEffectImpl *impl_from_IDirectInputEffect(IDirectInputEff
return CONTAINING_RECORD(iface, LinuxInputEffectImpl, IDirectInputEffect_iface);
}
double ff_effect_direction_to_rad(unsigned int dir)
{
return (dir & 0xffff) * M_PI / 0x8000;
}
/******************************************************************************
* LinuxInputEffectImpl
*/
@ -172,8 +177,10 @@ static HRESULT WINAPI LinuxInputEffectImpl_GetParameters(
return diErr;
else {
if (peff->dwFlags & DIEFF_CARTESIAN) {
peff->rglDirection[0] = sin(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
peff->rglDirection[1] = cos(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
/* rotate so 0 points right */
double angle = ff_effect_direction_to_rad(This->effect.direction + 0xc000);
peff->rglDirection[0] = sin(angle) * 1000;
peff->rglDirection[1] = -cos(angle) * 1000;
} else {
/* Polar and spherical coordinates are the same for two or less
* axes.
@ -505,9 +512,11 @@ static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
/* One condition block. This needs to be rotated to direction,
* and expanded to separate x and y conditions. */
int i;
double factor[2];
factor[0] = asin((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
factor[1] = acos((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
double factor[2], angle;
/* rotate so 0 points right */
angle = ff_effect_direction_to_rad(This->effect.direction + 0xc000);
factor[0] = sin(angle);
factor[1] = -cos(angle);
for (i = 0; i < 2; ++i) {
This->effect.u.condition[i].center = (int)(factor[i] * (tsp->lOffset / 10) * 32);
This->effect.u.condition[i].right_coeff = (int)(factor[i] * (tsp->lPositiveCoefficient / 10) * 32);