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dinput: Reuse common code and definition.

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Unify object properties structure and he common axis mapping function
for both joystick drivers.
This commit is contained in:
Vitaliy Margolen 2007-08-05 12:24:04 -06:00 committed by Alexandre Julliard
parent 19183e71d4
commit b06786940c
3 changed files with 77 additions and 86 deletions
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11
dlls/dinput/device_private.h
View file

@ -83,7 +83,18 @@ extern int id_to_offset(const DataFormat *df, int id);
extern int find_property(const DataFormat *df, LPCDIPROPHEADER ph);
/* Common joystick stuff */
typedef struct
{
LONG lDevMin;
LONG lDevMax;
LONG lMin;
LONG lMax;
LONG lDeadZone;
LONG lSaturation;
} ObjProps;
extern DWORD joystick_map_pov(POINTL *p);
extern LONG joystick_map_axis(ObjProps *props, int val);
/**
* Callback Data used by specific callback

28
dlls/dinput/joystick_linux.c
View file

@ -76,13 +76,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(dinput);
#define JOYDEV_NEW "/dev/input/js"
#define JOYDEV_OLD "/dev/js"
typedef struct {
LONG lMin;
LONG lMax;
LONG lDeadZone;
LONG lSaturation;
} ObjProps;
typedef struct JoystickImpl JoystickImpl;
static const IDirectInputDevice8AVtbl JoystickAvt;
static const IDirectInputDevice8WVtbl JoystickWvt;
@ -520,6 +513,8 @@ static HRESULT alloc_device(REFGUID rguid, const void *jvt, IDirectInputImpl *di
/* initialize default properties */
for (i = 0; i < c_dfDIJoystick2.dwNumObjs; i++) {
newDevice->props[i].lDevMin = -32767;
newDevice->props[i].lDevMax = +32767;
newDevice->props[i].lMin = 0;
newDevice->props[i].lMax = 0xffff;
newDevice->props[i].lDeadZone = newDevice->deadzone; /* % * 1000 */
@ -681,23 +676,6 @@ static HRESULT WINAPI JoystickAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
return DI_NOEFFECT;
}
static LONG map_axis(JoystickImpl * This, short val, short index)
{
double fval = val;
double fmin = This->props[index].lMin;
double fmax = This->props[index].lMax;
double fret;
fret = (((fval + 32767.0) * (fmax - fmin)) / (32767.0*2.0)) + fmin;
if (fret >= 0.0)
fret += 0.5;
else
fret -= 0.5;
return fret;
}
static void joy_polldev(JoystickImpl *This) {
struct pollfd plfd;
struct js_event jse;
@ -733,7 +711,7 @@ static void joy_polldev(JoystickImpl *This) {
if (number < 0) return;
inst_id = DIDFT_MAKEINSTANCE(number) | (number < 8 ? DIDFT_ABSAXIS : DIDFT_POV);
value = map_axis(This, jse.value, id_to_object(This->base.data_format.wine_df, inst_id));
value = joystick_map_axis(&This->props[id_to_object(This->base.data_format.wine_df, inst_id)], jse.value);
TRACE("changing axis %d => %d\n", jse.number, number);
switch (number)

124
dlls/dinput/joystick_linuxinput.c
View file

@ -84,6 +84,28 @@ DWORD joystick_map_pov(POINTL *p)
return p->y < 0 ? 0 : !p->y ? -1 : 18000;
}
/*
* This maps the read value (from the input event) to a value in the
* 'wanted' range.
*/
LONG joystick_map_axis(ObjProps *props, int val)
{
LONG ret;
/* map the value from the hmin-hmax range into the wmin-wmax range */
ret = MulDiv( val - props->lDevMin, props->lMax - props->lMin,
props->lDevMax - props->lDevMin ) + props->lMin;
if ((ret >= -props->lDeadZone / 2 ) && (ret <= props->lDeadZone / 2))
ret = (props->lMax - props->lMin) / 2 + props->lMin;
TRACE( "(%d %d) -> (%d <%d> %d): val=%d ret=%d\n",
props->lDevMin, props->lDevMax,
props->lMin, props->lDeadZone, props->lDevMax,
val, ret );
return ret;
}
#ifdef HAVE_CORRECT_LINUXINPUT_H
@ -156,7 +178,7 @@ struct JoystickImpl
DIJOYSTATE2 js;
struct ObjProps props[ABS_MAX];
ObjProps props[ABS_MAX];
int axes[ABS_MAX];
POINTL povs[4];
@ -405,12 +427,13 @@ static JoystickImpl *alloc_device(REFGUID rguid, const void *jvt, IDirectInputIm
memcpy(&df->rgodf[idx], &c_dfDIJoystick2.rgodf[i], df->dwObjSize);
newDevice->axes[i] = idx;
newDevice->props[idx].havemin = newDevice->joydev->axes[i][AXIS_ABSMIN];
newDevice->props[idx].havemax = newDevice->joydev->axes[i][AXIS_ABSMAX];
newDevice->props[idx].wantmin = 0;
newDevice->props[idx].wantmax = 0xffff;
newDevice->props[idx].deadzone = MulDiv(newDevice->joydev->axes[i][AXIS_ABSFLAT], 0xffff,
newDevice->props[idx].havemax - newDevice->props[idx].havemin);
newDevice->props[idx].lDevMin = newDevice->joydev->axes[i][AXIS_ABSMIN];
newDevice->props[idx].lDevMax = newDevice->joydev->axes[i][AXIS_ABSMAX];
newDevice->props[idx].lMin = 0;
newDevice->props[idx].lMax = 0xffff;
newDevice->props[idx].lSaturation = 0;
newDevice->props[idx].lDeadZone = MulDiv(newDevice->joydev->axes[i][AXIS_ABSFLAT], 0xffff,
newDevice->props[idx].lDevMax - newDevice->props[idx].lDevMin);
df->rgodf[idx++].dwType = DIDFT_MAKEINSTANCE(newDevice->numAxes++) | DIDFT_ABSAXIS;
}
@ -568,53 +591,32 @@ static HRESULT WINAPI JoystickAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
return res;
}
/*
* This maps the read value (from the input event) to a value in the
* 'wanted' range. It also autodetects the possible range of the axis and
* adapts values accordingly.
*/
static int map_axis(JoystickImpl* This, int axis, int val)
{
int hmax = This->props[axis].havemax;
int hmin = This->props[axis].havemin;
int wmin = This->props[axis].wantmin;
int wmax = This->props[axis].wantmax;
int deadz= This->props[axis].deadzone;
int ret;
/* map the value from the hmin-hmax range into the wmin-wmax range */
ret = MulDiv( val - hmin, wmax - wmin, hmax - hmin ) + wmin;
if ((ret >= -deadz / 2 ) && (ret <= deadz / 2))
ret = (wmax - wmin) / 2 + wmin;
TRACE("[%d] hmin=%d hmax=%d wmin=%d wmax=%d deadz=%d val=%d ret=%d\n",
axis, hmin, hmax, wmin, wmax, deadz, val, ret);
return ret;
}
/*
* set the current state of the js device as it would be with the middle
* values on the axes
*/
#define CENTER_AXIS(a) \
(ji->axes[a] == -1 ? 0 : joystick_map_axis( &ji->props[ji->axes[a]], \
ji->joydev->axes[a][AXIS_ABS] ))
static void fake_current_js_state(JoystickImpl *ji)
{
int i;
/* center the axes */
ji->js.lX = ji->axes[ABS_X]!=-1 ? map_axis(ji, ji->axes[ABS_X], ji->joydev->axes[ABS_X ][AXIS_ABS]) : 0;
ji->js.lY = ji->axes[ABS_Y]!=-1 ? map_axis(ji, ji->axes[ABS_Y], ji->joydev->axes[ABS_Y ][AXIS_ABS]) : 0;
ji->js.lZ = ji->axes[ABS_Z]!=-1 ? map_axis(ji, ji->axes[ABS_Z], ji->joydev->axes[ABS_Z ][AXIS_ABS]) : 0;
ji->js.lRx = ji->axes[ABS_RX]!=-1 ? map_axis(ji, ji->axes[ABS_RX], ji->joydev->axes[ABS_RX ][AXIS_ABS]) : 0;
ji->js.lRy = ji->axes[ABS_RY]!=-1 ? map_axis(ji, ji->axes[ABS_RY], ji->joydev->axes[ABS_RY ][AXIS_ABS]) : 0;
ji->js.lRz = ji->axes[ABS_RZ]!=-1 ? map_axis(ji, ji->axes[ABS_RZ], ji->joydev->axes[ABS_RZ ][AXIS_ABS]) : 0;
ji->js.rglSlider[0] = ji->axes[ABS_THROTTLE]!=-1 ? map_axis(ji, ji->axes[ABS_THROTTLE], ji->joydev->axes[ABS_THROTTLE][AXIS_ABS]) : 0;
ji->js.rglSlider[1] = ji->axes[ABS_RUDDER]!=-1 ? map_axis(ji, ji->axes[ABS_RUDDER], ji->joydev->axes[ABS_RUDDER ][AXIS_ABS]) : 0;
/* POV center is -1 */
for (i=0; i<4; i++) {
ji->js.rgdwPOV[i] = -1;
}
int i;
/* center the axes */
ji->js.lX = CENTER_AXIS(ABS_X);
ji->js.lY = CENTER_AXIS(ABS_Y);
ji->js.lZ = CENTER_AXIS(ABS_Z);
ji->js.lRx = CENTER_AXIS(ABS_RX);
ji->js.lRy = CENTER_AXIS(ABS_RY);
ji->js.lRz = CENTER_AXIS(ABS_RZ);
ji->js.rglSlider[0] = CENTER_AXIS(ABS_THROTTLE);
ji->js.rglSlider[1] = CENTER_AXIS(ABS_RUDDER);
/* POV center is -1 */
for (i = 0; i < 4; i++)
ji->js.rgdwPOV[i] = -1;
}
#undef CENTER_AXIS
/* convert wine format offset to user format object index */
static void joy_polldev(JoystickImpl *This)
@ -662,7 +664,7 @@ static void joy_polldev(JoystickImpl *This)
break;
}
inst_id = DIDFT_MAKEINSTANCE(axis) | (ie.code < ABS_HAT0X ? DIDFT_ABSAXIS : DIDFT_POV);
value = map_axis(This, id_to_object(This->base.data_format.wine_df, inst_id), ie.value);
value = joystick_map_axis(&This->props[id_to_object(This->base.data_format.wine_df, inst_id)], ie.value);
switch (ie.code) {
case ABS_X: This->js.lX = value; break;
@ -764,10 +766,10 @@ static HRESULT WINAPI JoystickAImpl_SetProperty(LPDIRECTINPUTDEVICE8A iface,
TRACE("proprange(%d,%d) all\n", pr->lMin, pr->lMax);
for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++) {
/* Scale dead-zone */
This->props[i].deadzone = MulDiv(This->props[i].deadzone, pr->lMax - pr->lMin,
This->props[i].wantmax - This->props[i].wantmin);
This->props[i].wantmin = pr->lMin;
This->props[i].wantmax = pr->lMax;
This->props[i].lDeadZone = MulDiv(This->props[i].lDeadZone, pr->lMax - pr->lMin,
This->props[i].lMax - This->props[i].lMin);
This->props[i].lMin = pr->lMin;
This->props[i].lMax = pr->lMax;
}
} else {
int obj = find_property(&This->base.data_format, ph);
@ -775,10 +777,10 @@ static HRESULT WINAPI JoystickAImpl_SetProperty(LPDIRECTINPUTDEVICE8A iface,
TRACE("proprange(%d,%d) obj=%d\n", pr->lMin, pr->lMax, obj);
if (obj >= 0) {
/* Scale dead-zone */
This->props[obj].deadzone = MulDiv(This->props[obj].deadzone, pr->lMax - pr->lMin,
This->props[obj].wantmax - This->props[obj].wantmin);
This->props[obj].wantmin = pr->lMin;
This->props[obj].wantmax = pr->lMax;
This->props[obj].lDeadZone = MulDiv(This->props[obj].lDeadZone, pr->lMax - pr->lMin,
This->props[obj].lMax - This->props[obj].lMin);
This->props[obj].lMin = pr->lMin;
This->props[obj].lMax = pr->lMax;
}
}
fake_current_js_state(This);
@ -790,14 +792,14 @@ static HRESULT WINAPI JoystickAImpl_SetProperty(LPDIRECTINPUTDEVICE8A iface,
int i;
TRACE("deadzone(%d) all\n", pd->dwData);
for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++) {
This->props[i].deadzone = pd->dwData;
This->props[i].lDeadZone = pd->dwData;
}
} else {
int obj = find_property(&This->base.data_format, ph);
TRACE("deadzone(%d) obj=%d\n", pd->dwData, obj);
if (obj >= 0) {
This->props[obj].deadzone = pd->dwData;
This->props[obj].lDeadZone = pd->dwData;
}
}
fake_current_js_state(This);
@ -883,8 +885,8 @@ static HRESULT WINAPI JoystickAImpl_GetProperty(LPDIRECTINPUTDEVICE8A iface,
if (obj < 0) return DIERR_OBJECTNOTFOUND;
pr->lMin = This->props[obj].wantmin;
pr->lMax = This->props[obj].wantmax;
pr->lMin = This->props[obj].lMin;
pr->lMax = This->props[obj].lMax;
TRACE("range(%d, %d) obj=%d\n", pr->lMin, pr->lMax, obj);
break;
}
@ -895,7 +897,7 @@ static HRESULT WINAPI JoystickAImpl_GetProperty(LPDIRECTINPUTDEVICE8A iface,
if (obj < 0) return DIERR_OBJECTNOTFOUND;
pd->dwData = This->props[obj].deadzone;
pd->dwData = This->props[obj].lDeadZone;
TRACE("deadzone(%d) obj=%d\n", pd->dwData, obj);
break;
}