X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fmswin%2Ffreeglut_joystick_mswin.c;h=93e7c9943c88ecdc69a12c8ef8288b899d190b12;hb=174ee0e3d510cc1cacba3acb019a5742e834d038;hp=e154223cb089f6ada3284e4e6efafc394e07c41a;hpb=0848ae668792714605699541b09d07476bf649e8;p=freeglut

diff --git a/src/mswin/freeglut_joystick_mswin.c b/src/mswin/freeglut_joystick_mswin.c
index e154223..93e7c99 100644
--- a/src/mswin/freeglut_joystick_mswin.c
+++ b/src/mswin/freeglut_joystick_mswin.c
@@ -30,6 +30,139 @@
 
 
 #if !defined(_WIN32_WCE)
+#    include <windows.h>
+#    include <mmsystem.h>
+#    include <regstr.h>
+
+
+
+/* Inspired by
+   http://msdn.microsoft.com/archive/en-us/dnargame/html/msdn_sidewind3d.asp
+ */
+#  if FREEGLUT_LIB_PRAGMAS
+#      pragma comment (lib, "advapi32.lib")
+#  endif
+
+static int fghJoystickGetOEMProductName ( SFG_Joystick* joy, char *buf, int buf_sz )
+{
+    char buffer [ 256 ];
+
+    char OEMKey [ 256 ];
+
+    HKEY  hKey;
+    DWORD dwcb;
+    LONG  lr;
+
+    if ( joy->error )
+        return 0;
+
+    /* Open .. MediaResources\CurrentJoystickSettings */
+    _snprintf ( buffer, sizeof(buffer), "%s\\%s\\%s",
+                REGSTR_PATH_JOYCONFIG, joy->jsCaps.szRegKey,
+                REGSTR_KEY_JOYCURR );
+
+    lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey);
+
+    if ( lr != ERROR_SUCCESS ) return 0;
+
+    /* Get OEM Key name */
+    dwcb = sizeof(OEMKey);
+
+    /* JOYSTICKID1-16 is zero-based; registry entries for VJOYD are 1-based. */
+    _snprintf ( buffer, sizeof(buffer), "Joystick%d%s", joy->js_id + 1, REGSTR_VAL_JOYOEMNAME );
+
+    lr = RegQueryValueEx ( hKey, buffer, 0, 0, (LPBYTE) OEMKey, &dwcb);
+    RegCloseKey ( hKey );
+
+    if ( lr != ERROR_SUCCESS ) return 0;
+
+    /* Open OEM Key from ...MediaProperties */
+    _snprintf ( buffer, sizeof(buffer), "%s\\%s", REGSTR_PATH_JOYOEM, OEMKey );
+
+    lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey );
+
+    if ( lr != ERROR_SUCCESS ) return 0;
+
+    /* Get OEM Name */
+    dwcb = buf_sz;
+
+    lr = RegQueryValueEx ( hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, (LPBYTE) buf,
+                             &dwcb );
+    RegCloseKey ( hKey );
+
+    if ( lr != ERROR_SUCCESS ) return 0;
+
+    return 1;
+}
+
+
+void fgPlatformJoystickOpen( SFG_Joystick* joy )
+{
+	int i = 0;
+
+    joy->js.dwFlags = JOY_RETURNALL;
+    joy->js.dwSize  = sizeof( joy->js );
+
+    memset( &joy->jsCaps, 0, sizeof( joy->jsCaps ) );
+
+    joy->error =
+        ( joyGetDevCaps( joy->js_id, &joy->jsCaps, sizeof( joy->jsCaps ) ) !=
+          JOYERR_NOERROR );
+
+    if( joy->jsCaps.wNumAxes == 0 )
+    {
+        joy->num_axes = 0;
+        joy->error = GL_TRUE;
+    }
+    else
+    {
+        /* Device name from jsCaps is often "Microsoft PC-joystick driver",
+         * at least for USB.  Try to get the real name from the registry.
+         */
+        if ( ! fghJoystickGetOEMProductName( joy, joy->name,
+                                             sizeof( joy->name ) ) )
+        {
+            fgWarning( "JS: Failed to read joystick name from registry" );
+            strncpy( joy->name, joy->jsCaps.szPname, sizeof( joy->name ) );
+        }
+
+        /* Windows joystick drivers may provide any combination of
+         * X,Y,Z,R,U,V,POV - not necessarily the first n of these.
+         */
+        if( joy->jsCaps.wCaps & JOYCAPS_HASPOV )
+        {
+            joy->num_axes = _JS_MAX_AXES;
+            joy->min[ 7 ] = -1.0; joy->max[ 7 ] = 1.0;  /* POV Y */
+            joy->min[ 6 ] = -1.0; joy->max[ 6 ] = 1.0;  /* POV X */
+        }
+        else
+            joy->num_axes = 6;
+
+        joy->min[ 5 ] = ( float )joy->jsCaps.wVmin;
+        joy->max[ 5 ] = ( float )joy->jsCaps.wVmax;
+        joy->min[ 4 ] = ( float )joy->jsCaps.wUmin;
+        joy->max[ 4 ] = ( float )joy->jsCaps.wUmax;
+        joy->min[ 3 ] = ( float )joy->jsCaps.wRmin;
+        joy->max[ 3 ] = ( float )joy->jsCaps.wRmax;
+        joy->min[ 2 ] = ( float )joy->jsCaps.wZmin;
+        joy->max[ 2 ] = ( float )joy->jsCaps.wZmax;
+        joy->min[ 1 ] = ( float )joy->jsCaps.wYmin;
+        joy->max[ 1 ] = ( float )joy->jsCaps.wYmax;
+        joy->min[ 0 ] = ( float )joy->jsCaps.wXmin;
+        joy->max[ 0 ] = ( float )joy->jsCaps.wXmax;
+    }
+
+    /* Guess all the rest judging on the axes extremals */
+    for( i = 0; i < joy->num_axes; i++ )
+    {
+        joy->center   [ i ] = ( joy->max[ i ] + joy->min[ i ] ) * 0.5f;
+        joy->dead_band[ i ] = 0.0f;
+        joy->saturate [ i ] = 1.0f;
+    }
+}
+
+
+
 void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident )
 {
     switch( ident )