Splitting the platform-specific "fgSystemTime" code into its own functions

[freeglut] / src / mswin / freeglut_joystick_mswin.c

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