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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
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
Sam Lantinga
slouken@libsdl.org
*/
/* we need to define it, so that raw input is included*/
#if (_WIN32_WINNT < 0x0501)
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#include "SDL_config.h"
#include "SDL_win32video.h"
#include "../../events/SDL_mouse_c.h"
extern HANDLE *mice;
extern int total_mice;
extern int tablet;
void
WIN_InitMouse(_THIS)
{
int index = 0;
RAWINPUTDEVICELIST *deviceList = NULL;
int devCount = 0;
int i;
int tmp = 0;
char *buffer = NULL;
char *tab = "wacom"; /* since windows does't give us handles to tablets, we have to detect a tablet by it's name */
const char *rdp = "rdp_mou";
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
/* WinCE has no RawInputDeviceList */
#ifdef _WIN32_WCE
SDL_Mouse mouse;
SDL_zero(mouse);
mouse.id = 0;
SDL_AddMouse(&mouse, "Stylus", 0, 0, 1);
#else
/* we're checking for the number of rawinput devices */
if (GetRawInputDeviceList(NULL, &devCount, sizeof(RAWINPUTDEVICELIST))) {
return;
}
deviceList = SDL_malloc(sizeof(RAWINPUTDEVICELIST) * devCount);
/* we're getting the raw input device list */
GetRawInputDeviceList(deviceList, &devCount, sizeof(RAWINPUTDEVICELIST));
mice = SDL_malloc(devCount * sizeof(HANDLE));
/* we're getting the details of the devices */
for (i = 0; i < devCount; ++i) {
int is_rdp = 0;
int j;
int k;
char *default_device_name = "Pointing device xx";
const char *reg_key_root = "System\\CurrentControlSet\\Enum\\";
char *device_name = SDL_malloc(256 * sizeof(char));
char *key_name = NULL;
char *tmp_name = NULL;
LONG rc = 0;
HKEY hkey;
DWORD regtype = REG_SZ;
DWORD out = 256 * sizeof(char);
SDL_Mouse mouse;
int l;
if (deviceList[i].dwType != RIM_TYPEMOUSE) { /* if a device isn't a mouse type we don't want it */
continue;
}
if (GetRawInputDeviceInfoA
(deviceList[i].hDevice, RIDI_DEVICENAME, NULL, &tmp) < 0) {
continue;
}
buffer = SDL_malloc((tmp + 1) * sizeof(char));
key_name =
SDL_malloc((tmp + SDL_strlen(reg_key_root) + 1) * sizeof(char));
/* we're getting the device registry path and polishing it to get it's name,
surely there must be an easier way, but we haven't found it yet */
if (GetRawInputDeviceInfoA
(deviceList[i].hDevice, RIDI_DEVICENAME, buffer, &tmp) < 0) {
continue;
}
buffer += 4;
tmp -= 4;
tmp_name = buffer;
for (j = 0; j < tmp; ++j) {
if (*tmp_name == '#') {
*tmp_name = '\\';
}
else if (*tmp_name == '{') {
break;
}
++tmp_name;
}
*tmp_name = '\0';
SDL_memcpy(key_name, reg_key_root, SDL_strlen(reg_key_root));
SDL_memcpy(key_name + (SDL_strlen(reg_key_root)), buffer, j + 1);
l = SDL_strlen(key_name);
is_rdp = 0;
if (l >= 7) {
for (j = 0; j < l - 7; ++j) {
for (k = 0; k < 7; ++k) {
if (rdp[k] !=
SDL_tolower((unsigned char) key_name[j + k])) {
break;
}
}
if (k == 7) {
is_rdp = 1;
break;
}
}
}
buffer -= 4;
if (is_rdp == 1) {
SDL_free(buffer);
SDL_free(key_name);
SDL_free(device_name);
is_rdp = 0;
continue;
}
/* we're opening the registry key to get the mouse name */
rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, key_name, 0, KEY_READ, &hkey);
if (rc != ERROR_SUCCESS) {
SDL_memcpy(device_name, default_device_name,
SDL_strlen(default_device_name));
}
rc = RegQueryValueExA(hkey, "DeviceDesc", NULL, ®type, device_name,
&out);
RegCloseKey(hkey);
if (rc != ERROR_SUCCESS) {
SDL_memcpy(device_name, default_device_name,
SDL_strlen(default_device_name));
}
/* we're saving the handle to the device */
mice[index] = deviceList[i].hDevice;
SDL_zero(mouse);
mouse.id = index;
l = SDL_strlen(device_name);
/* we're checking if the device isn't by any chance a tablet */
if (data->wintabDLL && tablet == -1) {
for (j = 0; j < l - 5; ++j) {
for (k = 0; k < 5; ++k) {
if (tab[k] !=
SDL_tolower((unsigned char) device_name[j + k])) {
break;
}
}
if (k == 5) {
tablet = index;
break;
}
}
}
/* if it's a tablet, let's read it's maximum and minimum pressure */
if (tablet == index) {
AXIS pressure;
int cursors;
data->WTInfoA(WTI_DEVICES, DVC_NPRESSURE, &pressure);
data->WTInfoA(WTI_DEVICES, DVC_NCSRTYPES, &cursors);
SDL_AddMouse(&mouse, device_name, pressure.axMax, pressure.axMin,
cursors);
} else {
SDL_AddMouse(&mouse, device_name, 0, 0, 1);
}
++index;
SDL_free(buffer);
SDL_free(key_name);
}
total_mice = index;
SDL_free(deviceList);
#endif /*_WIN32_WCE*/
}
void
WIN_QuitMouse(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
/* let's delete all of the mice */
SDL_MouseQuit();
}
/* vi: set ts=4 sw=4 expandtab: */