* 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
*
+ * 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
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+
/*
- * This code is a very complicated way of doing nothing.
- * But is needed for mswindows platform builds.
+ * This code is enhanced by at least supporting 3Dconnexion's
+ * six degree of freedom navigator.
*/
#include <GL/freeglut.h>
#include "../fg_internal.h"
+enum {
+ SPNAV_EVENT_ANY,
+ SPNAV_EVENT_MOTION_TRANSLATION,
+ SPNAV_EVENT_MOTION_ROTATION,
+ SPNAV_EVENT_BUTTON /* includes both press and release */
+};
+
+extern int 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;
}
int fgPlatformHasSpaceball(void)
{
- return 0;
+ return __fgSpaceball.hwndTarget ? 1 : 0;
}
int fgPlatformSpaceballNumButtons(void)
{
return;
}
+
+int fgIsSpaceballWinEvent(HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+}
+
+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
projects / freeglut / blobdiff