Fixed namespace pollution due to a number of global symbols missing an fg prefix
[freeglut] / src / mswin / fg_spaceball_mswin.c
index 4d96c31..63fa35c 100644 (file)
@@ -2,7 +2,7 @@
  * fg_spaceball_mswin.c
  *
  * Spaceball support for Windows
- * 
+ *
  * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
  * Written by Evan Felix <karcaw at gmail.com>
  * Creation date: Sat Feb 4, 2012
@@ -10,7 +10,7 @@
  * Copyright (c) 2014 Jinrong Xie. All Rights Reserved.
  * Written by Jinrong Xie <stonexjr at gmail.com>
  * Modification date: Wed Dec 24, 2014
-
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  */
 
 /*
- * This code is enhanced by at least supporting 3Dconnexion's 
+ * Modified by Jinrong Xie <stonexjr at gmail.com> 12/24/2014
+ * for Space Navigator support on Windows.
+ * This code is enhanced by at least supporting 3Dconnexion's
  * six degree of freedom navigator.
  */
 
+#if(_WIN32_WINNT >= 0x0501)
+
 #include <GL/freeglut.h>
+#include <stdlib.h>
 #include "../fg_internal.h"
 
 enum {
-    SPNAV_EVENT_ANY,  
+    SPNAV_EVENT_ANY,
     SPNAV_EVENT_MOTION_TRANSLATION,
     SPNAV_EVENT_MOTION_ROTATION,
     SPNAV_EVENT_BUTTON  /* includes both press and release */
 };
 
-extern int sball_initialized;
+extern int fg_sball_initialized;
 unsigned int __fgSpaceKeystate = 0;
 RAWINPUTDEVICE __fgSpaceball = { 0x01, 0x08, 0x00, 0x00 };
 
 void fgPlatformInitializeSpaceball(void)
 {
-       HWND hwnd;
-    sball_initialized = 1;
-       if (!fgStructure.CurrentWindow)
-       {
-               sball_initialized = 0;
-               return;
-       }
-       hwnd = fgStructure.CurrentWindow->Window.Handle;
-
-       BOOL ok;
-       UINT cbSize = sizeof(__fgSpaceball);
-       __fgSpaceball.hwndTarget = hwnd;
-       ok = RegisterRawInputDevices(&__fgSpaceball, 1, cbSize);
-
-       if (!ok){
-               __fgSpaceball.hwndTarget = NULL;
-               sball_initialized = 0;
-       }
-
-       return;
+    HWND hwnd;
+    fg_sball_initialized = 1;
+    if (!fgStructure.CurrentWindow)
+    {
+        fg_sball_initialized = 0;
+        return;
+    }
+    hwnd = fgStructure.CurrentWindow->Window.Handle;
+
+    {
+        BOOL ok;
+        UINT cbSize = sizeof(__fgSpaceball);
+        __fgSpaceball.hwndTarget = hwnd;
+        ok = RegisterRawInputDevices(&__fgSpaceball, 1, cbSize);
+
+        if (!ok){
+            __fgSpaceball.hwndTarget = NULL;
+            fg_sball_initialized = 0;
+        }
+    }
 }
 
 void fgPlatformSpaceballClose(void)
 {
-       return;
+    return;
 }
 
 int fgPlatformHasSpaceball(void)
 {
-       return __fgSpaceball.hwndTarget ? 1 : 0;
+    return __fgSpaceball.hwndTarget ? 1 : 0;
 }
 
 int fgPlatformSpaceballNumButtons(void)
 {
-       return 0;
+    return 0;
 }
 
 void fgPlatformSpaceballSetWindow(SFG_Window *window)
 {
-       return;
+    return;
 }
 
 int fgIsSpaceballWinEvent(HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
+    return 0;
 }
 
 void fgSpaceballHandleWinEvent(HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
-       #define LOGITECH_VENDOR_ID 0x46d
-       HRAWINPUT hRawInput = (HRAWINPUT)lParam;
-       UINT inputCode = (UINT)wParam;
-       RAWINPUTHEADER hdr;
-       UINT size;
-       BYTE *rawInputBuffer;
-       PRAWINPUT pRawInput;
-       UINT res;
-       RID_DEVICE_INFO sRidDeviceInfo;
-
-       if (!sball_initialized)
-       {
-               fgPlatformInitializeSpaceball();
-               if (!sball_initialized)
-               {
-                       return;
-               }
-       }
-
-       res = GetRawInputData(hRawInput, RID_INPUT, NULL, &size, sizeof(RAWINPUTHEADER));
-       if (res == -1)
-               return;
-
-       rawInputBuffer = (BYTE*)malloc(size);
-       pRawInput = (PRAWINPUT)rawInputBuffer;
-
-       res = GetRawInputData(hRawInput, RID_INPUT, pRawInput, &size, sizeof(RAWINPUTHEADER));
-       if (res == -1)
-               return;
-       if (pRawInput->header.dwType != RIM_TYPEHID)
-               return;
-
-       sRidDeviceInfo.cbSize = sizeof(RID_DEVICE_INFO);
-       size = sizeof(RID_DEVICE_INFO);
-       res = GetRawInputDeviceInfo(pRawInput->header.hDevice, RIDI_DEVICEINFO, &sRidDeviceInfo, &size);
-       if (res == -1)
-               return;
-
-       SFG_Window* window = fgWindowByHandle(hwnd);
-       if ((window == NULL))
-               return;
-
-       if (sRidDeviceInfo.hid.dwVendorId == LOGITECH_VENDOR_ID)
-       {
-               // Motion data comes in two parts: motion type and 
-               // displacement/rotation along three axis.
-               // Orientation is a right handed coordinate system with 
-               // X goes right, Y goes up and Z goes towards viewer, e.g.
-               // the one used in OpenGL
-               if (pRawInput->data.hid.bRawData[0] == 
-                       SPNAV_EVENT_MOTION_TRANSLATION)//0x01)
-               { // Translation vector
-                       short* pnData = (short*)(&pRawInput->data.hid.bRawData[1]);
-                       short X =  pnData[0];
-                       short Y = -pnData[2];
-                       short Z =  pnData[1];
-                       INVOKE_WCB(*window, SpaceMotion, (X, Y, Z));
-               }
-               else if (pRawInput->data.hid.bRawData[0] == 
-                               SPNAV_EVENT_MOTION_ROTATION)//0x02)
-               { // Axis aligned rotation vector
-                       short* pnData = (short*)(&pRawInput->data.hid.bRawData[1]);
-                       short rX =  pnData[0];
-                       short rY = -pnData[2];
-                       short rZ =  pnData[1];
-                       INVOKE_WCB(*window, SpaceRotation, (rX, rY, rZ));
-               }
-               else if (pRawInput->data.hid.bRawData[0] == 
-                                SPNAV_EVENT_BUTTON)//0x03)
-               { // State of the keys
-                       unsigned long dwKeystate = *(unsigned long*)(&pRawInput->data.hid.bRawData[1]);
-                       unsigned int state = GLUT_UP;
-                       if (FETCH_WCB(*window, SpaceButton))
-                       {
-                               int i;
-                               for (i = 0; i < 32; i++)
-                               {
-                                       unsigned long stateBefore = __fgSpaceKeystate&(1 << i);
-                                       unsigned long stateNow = dwKeystate&(1 << i);
-
-                                       if (stateBefore && !stateNow)
-                                               INVOKE_WCB(*window, SpaceButton, (stateBefore, GLUT_DOWN));
-                                       if (!stateBefore && stateNow)
-                                               INVOKE_WCB(*window, SpaceButton, (stateNow, GLUT_UP));
-
-                               }
-                       }
-                       __fgSpaceKeystate = dwKeystate;
-               }
-       }
-}
\ No newline at end of file
+    #define LOGITECH_VENDOR_ID 0x46d
+    HRAWINPUT hRawInput = (HRAWINPUT)lParam;
+    UINT inputCode = (UINT)wParam;
+    UINT size;
+    BYTE *rawInputBuffer;
+    PRAWINPUT pRawInput;
+    UINT res;
+    RID_DEVICE_INFO sRidDeviceInfo;
+
+    if (!fg_sball_initialized)
+    {
+        fgPlatformInitializeSpaceball();
+        if (!fg_sball_initialized)
+        {
+            return;
+        }
+    }
+
+    res = GetRawInputData(hRawInput, RID_INPUT, NULL, &size, sizeof(RAWINPUTHEADER));
+    if (res == -1)
+        return;
+
+    rawInputBuffer = malloc(size * sizeof *rawInputBuffer);
+    pRawInput = (PRAWINPUT)rawInputBuffer;
+
+    res = GetRawInputData(hRawInput, RID_INPUT, pRawInput, &size, sizeof(RAWINPUTHEADER));
+    if (res == -1)
+        return;
+    if (pRawInput->header.dwType != RIM_TYPEHID)
+        return;
+
+    sRidDeviceInfo.cbSize = sizeof(RID_DEVICE_INFO);
+    size = sizeof(RID_DEVICE_INFO);
+    res = GetRawInputDeviceInfo(pRawInput->header.hDevice, RIDI_DEVICEINFO, &sRidDeviceInfo, &size);
+    if (res == -1)
+        return;
+    {
+        SFG_Window* window = fgWindowByHandle(hwnd);
+        if ((window == NULL))
+            return;
+
+        if (sRidDeviceInfo.hid.dwVendorId == LOGITECH_VENDOR_ID)
+        {
+            // Motion data comes in two parts: motion type and
+            // displacement/rotation along three axis.
+            // Orientation is a right handed coordinate system with
+            // X goes right, Y goes up and Z goes towards viewer, e.g.
+            // the one used in OpenGL
+            if (pRawInput->data.hid.bRawData[0] ==
+                SPNAV_EVENT_MOTION_TRANSLATION)
+            { // Translation vector
+                short* pnData = (short*)(&pRawInput->data.hid.bRawData[1]);
+                short X = pnData[0];
+                short Y = -pnData[2];
+                short Z = pnData[1];
+                INVOKE_WCB(*window, SpaceMotion, (X, Y, Z));
+            }
+            else if (pRawInput->data.hid.bRawData[0] ==
+                SPNAV_EVENT_MOTION_ROTATION)
+            { // Axis aligned rotation vector
+                short* pnData = (short*)(&pRawInput->data.hid.bRawData[1]);
+                short rX = pnData[0];
+                short rY = -pnData[2];
+                short rZ = pnData[1];
+                INVOKE_WCB(*window, SpaceRotation, (rX, rY, rZ));
+            }
+            else if (pRawInput->data.hid.bRawData[0] ==
+                SPNAV_EVENT_BUTTON)
+            { // State of the keys
+                unsigned long dwKeystate = *(unsigned long*)(&pRawInput->data.hid.bRawData[1]);
+                unsigned int state = GLUT_UP;
+                if (FETCH_WCB(*window, SpaceButton))
+                {
+                    int i;
+                    for (i = 0; i < 32; i++)
+                    {
+                        unsigned long stateBefore = __fgSpaceKeystate&(1 << i);
+                        unsigned long stateNow = dwKeystate&(1 << i);
+
+                        if (stateBefore && !stateNow)
+                            INVOKE_WCB(*window, SpaceButton, (stateBefore, GLUT_UP));
+                        if (!stateBefore && stateNow)
+                            INVOKE_WCB(*window, SpaceButton, (stateNow, GLUT_DOWN));
+
+                    }
+                }
+                __fgSpaceKeystate = dwKeystate;
+            }
+        }
+    }
+}
+
+#endif