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e6649952fa
wine/dlls/dinput/joystick.c
Andrew Talbot e6649952fa dinput: Constify some variables.
2010-08-31 14:23:47 +02:00

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/* DirectInput Generic Joystick device
*
* Copyright 1998 Marcus Meissner
* Copyright 1998,1999 Lionel Ulmer
* Copyright 2000-2001 TransGaming Technologies Inc.
* Copyright 2009 Aric Stewart, CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/*
* To Do:
* dead zone
* force feedback
*/
#include "joystick_private.h"
#include "wine/debug.h"
#include "winreg.h"
WINE_DEFAULT_DEBUG_CHANNEL(dinput);
/******************************************************************************
* SetProperty : change input device properties
*/
HRESULT WINAPI JoystickAGenericImpl_SetProperty(
LPDIRECTINPUTDEVICE8A iface,
REFGUID rguid,
LPCDIPROPHEADER ph)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
DWORD i;
TRACE("(%p,%s,%p)\n",This,debugstr_guid(rguid),ph);
if (ph == NULL) {
WARN("invalid parameter: ph == NULL\n");
return DIERR_INVALIDPARAM;
}
if (TRACE_ON(dinput))
_dump_DIPROPHEADER(ph);
if (IS_DIPROP(rguid)) {
switch (LOWORD(rguid)) {
case (DWORD_PTR)DIPROP_RANGE: {
LPCDIPROPRANGE pr = (LPCDIPROPRANGE)ph;
if (ph->dwHow == DIPH_DEVICE) {
TRACE("proprange(%d,%d) all\n", pr->lMin, pr->lMax);
for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++) {
This->props[i].lMin = pr->lMin;
This->props[i].lMax = pr->lMax;
}
} else {
int obj = find_property(&This->base.data_format, ph);
TRACE("proprange(%d,%d) obj=%d\n", pr->lMin, pr->lMax, obj);
if (obj >= 0) {
This->props[obj].lMin = pr->lMin;
This->props[obj].lMax = pr->lMax;
return DI_OK;
}
}
break;
}
case (DWORD_PTR)DIPROP_DEADZONE: {
LPCDIPROPDWORD pd = (LPCDIPROPDWORD)ph;
if (ph->dwHow == DIPH_DEVICE) {
TRACE("deadzone(%d) all\n", pd->dwData);
for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++)
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].lDeadZone = pd->dwData;
return DI_OK;
}
}
break;
}
case (DWORD_PTR)DIPROP_SATURATION: {
LPCDIPROPDWORD pd = (LPCDIPROPDWORD)ph;
if (ph->dwHow == DIPH_DEVICE) {
TRACE("saturation(%d) all\n", pd->dwData);
for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++)
This->props[i].lSaturation = pd->dwData;
} else {
int obj = find_property(&This->base.data_format, ph);
TRACE("saturation(%d) obj=%d\n", pd->dwData, obj);
if (obj >= 0) {
This->props[obj].lSaturation = pd->dwData;
return DI_OK;
}
}
break;
}
default:
return IDirectInputDevice2AImpl_SetProperty(iface, rguid, ph);
}
}
return DI_OK;
}
void _dump_DIDEVCAPS(const DIDEVCAPS *lpDIDevCaps)
{
TRACE("dwSize: %d\n", lpDIDevCaps->dwSize);
TRACE("dwFlags: %08x\n", lpDIDevCaps->dwFlags);
TRACE("dwDevType: %08x %s\n", lpDIDevCaps->dwDevType,
lpDIDevCaps->dwDevType == DIDEVTYPE_DEVICE ? "DIDEVTYPE_DEVICE" :
lpDIDevCaps->dwDevType == DIDEVTYPE_DEVICE ? "DIDEVTYPE_DEVICE" :
lpDIDevCaps->dwDevType == DIDEVTYPE_MOUSE ? "DIDEVTYPE_MOUSE" :
lpDIDevCaps->dwDevType == DIDEVTYPE_KEYBOARD ? "DIDEVTYPE_KEYBOARD" :
lpDIDevCaps->dwDevType == DIDEVTYPE_JOYSTICK ? "DIDEVTYPE_JOYSTICK" :
lpDIDevCaps->dwDevType == DIDEVTYPE_HID ? "DIDEVTYPE_HID" : "UNKNOWN");
TRACE("dwAxes: %d\n", lpDIDevCaps->dwAxes);
TRACE("dwButtons: %d\n", lpDIDevCaps->dwButtons);
TRACE("dwPOVs: %d\n", lpDIDevCaps->dwPOVs);
if (lpDIDevCaps->dwSize > sizeof(DIDEVCAPS_DX3)) {
TRACE("dwFFSamplePeriod: %d\n", lpDIDevCaps->dwFFSamplePeriod);
TRACE("dwFFMinTimeResolution: %d\n", lpDIDevCaps->dwFFMinTimeResolution);
TRACE("dwFirmwareRevision: %d\n", lpDIDevCaps->dwFirmwareRevision);
TRACE("dwHardwareRevision: %d\n", lpDIDevCaps->dwHardwareRevision);
TRACE("dwFFDriverVersion: %d\n", lpDIDevCaps->dwFFDriverVersion);
}
}
HRESULT WINAPI JoystickAGenericImpl_GetCapabilities(
LPDIRECTINPUTDEVICE8A iface,
LPDIDEVCAPS lpDIDevCaps)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
int size;
TRACE("%p->(%p)\n",iface,lpDIDevCaps);
if (lpDIDevCaps == NULL) {
WARN("invalid pointer\n");
return E_POINTER;
}
size = lpDIDevCaps->dwSize;
if (!(size == sizeof(DIDEVCAPS) || size == sizeof(DIDEVCAPS_DX3))) {
WARN("invalid parameter\n");
return DIERR_INVALIDPARAM;
}
CopyMemory(lpDIDevCaps, &This->devcaps, size);
lpDIDevCaps->dwSize = size;
if (TRACE_ON(dinput))
_dump_DIDEVCAPS(lpDIDevCaps);
return DI_OK;
}
/******************************************************************************
* GetObjectInfo : get object info
*/
HRESULT WINAPI JoystickWGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8W iface,
LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow)
{
static const WCHAR axisW[] = {'A','x','i','s',' ','%','d',0};
static const WCHAR povW[] = {'P','O','V',' ','%','d',0};
static const WCHAR buttonW[] = {'B','u','t','t','o','n',' ','%','d',0};
HRESULT res;
res = IDirectInputDevice2WImpl_GetObjectInfo(iface, pdidoi, dwObj, dwHow);
if (res != DI_OK) return res;
if (pdidoi->dwType & DIDFT_AXIS)
sprintfW(pdidoi->tszName, axisW, DIDFT_GETINSTANCE(pdidoi->dwType));
else if (pdidoi->dwType & DIDFT_POV)
sprintfW(pdidoi->tszName, povW, DIDFT_GETINSTANCE(pdidoi->dwType));
else if (pdidoi->dwType & DIDFT_BUTTON)
sprintfW(pdidoi->tszName, buttonW, DIDFT_GETINSTANCE(pdidoi->dwType));
_dump_OBJECTINSTANCEW(pdidoi);
return res;
}
HRESULT WINAPI JoystickAGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8A iface,
LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow)
{
HRESULT res;
DIDEVICEOBJECTINSTANCEW didoiW;
DWORD dwSize = pdidoi->dwSize;
didoiW.dwSize = sizeof(didoiW);
res = JoystickWGenericImpl_GetObjectInfo((LPDIRECTINPUTDEVICE8W)iface, &didoiW, dwObj, dwHow);
if (res != DI_OK) return res;
memset(pdidoi, 0, pdidoi->dwSize);
memcpy(pdidoi, &didoiW, FIELD_OFFSET(DIDEVICEOBJECTINSTANCEW, tszName));
pdidoi->dwSize = dwSize;
WideCharToMultiByte(CP_ACP, 0, didoiW.tszName, -1, pdidoi->tszName,
sizeof(pdidoi->tszName), NULL, NULL);
return res;
}
/******************************************************************************
* GetProperty : get input device properties
*/
HRESULT WINAPI JoystickAGenericImpl_GetProperty(
LPDIRECTINPUTDEVICE8A iface,
REFGUID rguid,
LPDIPROPHEADER pdiph)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(rguid), pdiph);
if (TRACE_ON(dinput))
_dump_DIPROPHEADER(pdiph);
if (IS_DIPROP(rguid)) {
switch (LOWORD(rguid)) {
case (DWORD_PTR) DIPROP_RANGE: {
LPDIPROPRANGE pr = (LPDIPROPRANGE)pdiph;
int obj = find_property(&This->base.data_format, pdiph);
/* The app is querying the current range of the axis
* return the lMin and lMax values */
if (obj >= 0) {
pr->lMin = This->props[obj].lMin;
pr->lMax = This->props[obj].lMax;
TRACE("range(%d, %d) obj=%d\n", pr->lMin, pr->lMax, obj);
return DI_OK;
}
break;
}
case (DWORD_PTR) DIPROP_DEADZONE: {
LPDIPROPDWORD pd = (LPDIPROPDWORD)pdiph;
int obj = find_property(&This->base.data_format, pdiph);
if (obj >= 0) {
pd->dwData = This->props[obj].lDeadZone;
TRACE("deadzone(%d) obj=%d\n", pd->dwData, obj);
return DI_OK;
}
break;
}
case (DWORD_PTR) DIPROP_SATURATION: {
LPDIPROPDWORD pd = (LPDIPROPDWORD)pdiph;
int obj = find_property(&This->base.data_format, pdiph);
if (obj >= 0) {
pd->dwData = This->props[obj].lSaturation;
TRACE("saturation(%d) obj=%d\n", pd->dwData, obj);
return DI_OK;
}
break;
}
default:
return IDirectInputDevice2AImpl_GetProperty(iface, rguid, pdiph);
}
}
return DI_OK;
}
/******************************************************************************
* GetDeviceInfo : get information about a device's identity
*/
HRESULT WINAPI JoystickAGenericImpl_GetDeviceInfo(
LPDIRECTINPUTDEVICE8A iface,
LPDIDEVICEINSTANCEA pdidi)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
TRACE("(%p,%p)\n", iface, pdidi);
if (pdidi == NULL) {
WARN("invalid pointer\n");
return E_POINTER;
}
if ((pdidi->dwSize != sizeof(DIDEVICEINSTANCE_DX3A)) &&
(pdidi->dwSize != sizeof(DIDEVICEINSTANCEA))) {
WARN("invalid parameter: pdidi->dwSize = %d\n", pdidi->dwSize);
return DIERR_INVALIDPARAM;
}
/* Return joystick */
pdidi->guidInstance = This->guidInstance;
pdidi->guidProduct = This->guidProduct;
/* we only support traditional joysticks for now */
pdidi->dwDevType = This->devcaps.dwDevType;
strcpy(pdidi->tszInstanceName, "Joystick");
strcpy(pdidi->tszProductName, This->name);
if (pdidi->dwSize > sizeof(DIDEVICEINSTANCE_DX3A)) {
pdidi->guidFFDriver = GUID_NULL;
pdidi->wUsagePage = 0;
pdidi->wUsage = 0;
}
return DI_OK;
}
/******************************************************************************
* GetDeviceInfo : get information about a device's identity
*/
HRESULT WINAPI JoystickWGenericImpl_GetDeviceInfo(
LPDIRECTINPUTDEVICE8W iface,
LPDIDEVICEINSTANCEW pdidi)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
TRACE("(%p,%p)\n", iface, pdidi);
if ((pdidi->dwSize != sizeof(DIDEVICEINSTANCE_DX3W)) &&
(pdidi->dwSize != sizeof(DIDEVICEINSTANCEW))) {
WARN("invalid parameter: pdidi->dwSize = %d\n", pdidi->dwSize);
return DIERR_INVALIDPARAM;
}
/* Return joystick */
pdidi->guidInstance = This->guidInstance;
pdidi->guidProduct = This->guidProduct;
/* we only support traditional joysticks for now */
pdidi->dwDevType = This->devcaps.dwDevType;
MultiByteToWideChar(CP_ACP, 0, "Joystick", -1, pdidi->tszInstanceName, MAX_PATH);
MultiByteToWideChar(CP_ACP, 0, This->name, -1, pdidi->tszProductName, MAX_PATH);
if (pdidi->dwSize > sizeof(DIDEVICEINSTANCE_DX3W)) {
pdidi->guidFFDriver = GUID_NULL;
pdidi->wUsagePage = 0;
pdidi->wUsage = 0;
}
return DI_OK;
}
HRESULT WINAPI JoystickAGenericImpl_Poll(LPDIRECTINPUTDEVICE8A iface)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
TRACE("(%p)\n",This);
if (!This->base.acquired) {
WARN("not acquired\n");
return DIERR_NOTACQUIRED;
}
This->joy_polldev(This);
return DI_OK;
}
/******************************************************************************
* GetDeviceState : returns the "state" of the joystick.
*
*/
HRESULT WINAPI JoystickAGenericImpl_GetDeviceState(
LPDIRECTINPUTDEVICE8A iface,
DWORD len,
LPVOID ptr)
{
JoystickGenericImpl *This = (JoystickGenericImpl *)iface;
TRACE("(%p,0x%08x,%p)\n", This, len, ptr);
if (!This->base.acquired) {
WARN("not acquired\n");
return DIERR_NOTACQUIRED;
}
/* update joystick state */
This->joy_polldev(This);
/* convert and copy data to user supplied buffer */
fill_DataFormat(ptr, len, &This->js, &This->base.data_format);
return DI_OK;
}
/*
* This maps the read value (from the input event) to a value in the
* 'wanted' range.
* Notes:
* Dead zone is in % multiplied by a 100 (range 0..10000)
*/
LONG joystick_map_axis(ObjProps *props, int val)
{
LONG ret;
LONG dead_zone = MulDiv( props->lDeadZone, props->lDevMax - props->lDevMin, 10000 );
LONG dev_range = props->lDevMax - props->lDevMin - dead_zone;
/* Center input */
val -= (props->lDevMin + props->lDevMax) / 2;
/* Remove dead zone */
if (abs( val ) <= dead_zone / 2)
val = 0;
else
val = val < 0 ? val + dead_zone / 2 : val - dead_zone / 2;
/* Scale and map the value from the device range into the required range */
ret = MulDiv( val, props->lMax - props->lMin, dev_range ) +
(props->lMin + props->lMax) / 2;
/* Clamp in case or rounding errors */
if (ret > props->lMax) ret = props->lMax;
else if (ret < props->lMin) ret = props->lMin;
TRACE( "(%d <%d> %d) -> (%d <%d> %d): val=%d ret=%d\n",
props->lDevMin, dead_zone, props->lDevMax,
props->lMin, props->lDeadZone, props->lMax,
val, ret );
return ret;
}
/*
* Maps POV x & y event values to a DX "clock" position:
* 0
* 31500 4500
* 27000 -1 9000
* 22500 13500
* 18000
*/
DWORD joystick_map_pov(const POINTL *p)
{
if (p->x > 0)
return p->y < 0 ? 4500 : !p->y ? 9000 : 13500;
else if (p->x < 0)
return p->y < 0 ? 31500 : !p->y ? 27000 : 22500;
else
return p->y < 0 ? 0 : !p->y ? -1 : 18000;
}
/*
* Setup the dinput options.
*/
HRESULT setup_dinput_options(JoystickGenericImpl *This, const int *default_axis_map)
{
char buffer[MAX_PATH+16];
HKEY hkey, appkey;
int tokens = 0;
int axis = 0;
int pov = 0;
get_app_key(&hkey, &appkey);
/* get options */
if (!get_config_key(hkey, appkey, "DefaultDeadZone", buffer, sizeof(buffer)))
{
This->deadzone = atoi(buffer);
TRACE("setting default deadzone to: \"%s\" %d\n", buffer, This->deadzone);
}
This->axis_map = HeapAlloc(GetProcessHeap(), 0, This->device_axis_count * sizeof(int));
if (!This->axis_map) return DIERR_OUTOFMEMORY;
if (!get_config_key(hkey, appkey, This->name, buffer, sizeof(buffer)))
{
static const char *axis_names[] = {"X", "Y", "Z", "Rx", "Ry", "Rz",
"Slider1", "Slider2",
"POV1", "POV2", "POV3", "POV4"};
const char *delim = ",";
char * ptr;
TRACE("\"%s\" = \"%s\"\n", This->name, buffer);
if ((ptr = strtok(buffer, delim)) != NULL)
{
do
{
int i;
for (i = 0; i < sizeof(axis_names) / sizeof(axis_names[0]); i++)
{
if (!strcmp(ptr, axis_names[i]))
{
if (!strncmp(ptr, "POV", 3))
{
if (pov >= 4)
{
WARN("Only 4 POVs supported - ignoring extra\n");
i = -1;
}
else
{
/* Pov takes two axes */
This->axis_map[tokens++] = i;
pov++;
}
}
else
{
if (axis >= 8)
{
FIXME("Only 8 Axes supported - ignoring extra\n");
i = -1;
}
else
axis++;
}
break;
}
}
if (i == sizeof(axis_names) / sizeof(axis_names[0]))
{
ERR("invalid joystick axis type: \"%s\"\n", ptr);
i = -1;
}
This->axis_map[tokens] = i;
tokens++;
} while ((ptr = strtok(NULL, delim)) != NULL);
if (tokens != This->device_axis_count)
{
ERR("not all joystick axes mapped: %d axes(%d,%d), %d arguments\n",
This->device_axis_count, axis, pov, tokens);
while (tokens < This->device_axis_count)
{
This->axis_map[tokens] = -1;
tokens++;
}
}
}
}
else
{
int i;
if (default_axis_map)
{
/* Use default mapping from the driver */
for (i = 0; i < This->device_axis_count; i++)
{
This->axis_map[i] = default_axis_map[i];
tokens = default_axis_map[i];
if (tokens < 0)
continue;
if (tokens < 8)
axis++;
else if (tokens < 15)
{
i++;
pov++;
This->axis_map[i] = default_axis_map[i];
}
}
}
else
{
/* No config - set default mapping. */
for (i = 0; i < This->device_axis_count; i++)
{
if (i < 8)
This->axis_map[i] = axis++;
else if (i < 15)
{
This->axis_map[i++] = 8 + pov;
This->axis_map[i ] = 8 + pov++;
}
else
This->axis_map[i] = -1;
}
}
}
This->devcaps.dwAxes = axis;
This->devcaps.dwPOVs = pov;
if (appkey) RegCloseKey(appkey);
if (hkey) RegCloseKey(hkey);
return DI_OK;
}
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