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dsound: Fix 3D positioning bug with head-relative buffers.

This commit is contained in:
Mark Harmstone 2015-02-02 23:55:39 +00:00 committed by Alexandre Julliard
parent 530a039dac
commit 1c73ce1ee7
1 changed files with 11 additions and 8 deletions
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19
dlls/dsound/sound3d.c
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@ -181,13 +181,14 @@ void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb)
case DS3DMODE_NORMAL:
TRACE("Normal 3D processing mode\n");
/* we need to calculate distance between buffer and listener*/
vDistance = VectorBetweenTwoPoints(&dsb->ds3db_ds3db.vPosition, &dsb->device->ds3dl.vPosition);
vDistance = VectorBetweenTwoPoints(&dsb->device->ds3dl.vPosition, &dsb->ds3db_ds3db.vPosition);
flDistance = VectorMagnitude (&vDistance);
break;
case DS3DMODE_HEADRELATIVE:
TRACE("Head-relative 3D processing mode\n");
/* distance between buffer and listener is same as buffer's position */
flDistance = VectorMagnitude (&dsb->ds3db_ds3db.vPosition);
vDistance = dsb->ds3db_ds3db.vPosition;
flDistance = VectorMagnitude (&vDistance);
break;
}
@ -220,8 +221,14 @@ void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb)
}
else
{
D3DVECTOR vDistanceInv;
vDistanceInv.x = -vDistance.x;
vDistanceInv.y = -vDistance.y;
vDistanceInv.z = -vDistance.z;
/* calculate angle */
flAngle = AngleBetweenVectorsDeg(&dsb->ds3db_ds3db.vConeOrientation, &vDistance);
flAngle = AngleBetweenVectorsDeg(&dsb->ds3db_ds3db.vConeOrientation, &vDistanceInv);
/* if by any chance it happens that OutsideConeAngle = InsideConeAngle (that means that conning has no effect) */
if (dsb->ds3db_ds3db.dwInsideConeAngle != dsb->ds3db_ds3db.dwOutsideConeAngle)
{
@ -254,14 +261,10 @@ void DSOUND_Calc3DBuffer(IDirectSoundBufferImpl *dsb)
}
/* panning */
if (dsb->device->ds3dl.vPosition.x == dsb->ds3db_ds3db.vPosition.x &&
dsb->device->ds3dl.vPosition.y == dsb->ds3db_ds3db.vPosition.y &&
dsb->device->ds3dl.vPosition.z == dsb->ds3db_ds3db.vPosition.z) {
if (vDistance.x == 0.0f && vDistance.y == 0.0f && vDistance.z == 0.0f)
flAngle = 0.0;
}
else
{
vDistance = VectorBetweenTwoPoints(&dsb->device->ds3dl.vPosition, &dsb->ds3db_ds3db.vPosition);
vLeft = VectorProduct(&dsb->device->ds3dl.vOrientFront, &dsb->device->ds3dl.vOrientTop);
flAngle = AngleBetweenVectorsRad(&dsb->device->ds3dl.vOrientFront, &vDistance);
flAngle2 = AngleBetweenVectorsRad(&vLeft, &vDistance);