Bug 777: Merge from CYGWIN branch

1 files changed, 131 insertions, 0 deletions

diff --git a/hw/xwin/winpriv.c b/hw/xwin/winpriv.c
new file mode 100644
index 000000000..20b0840f8
--- /dev/null
+++ b/hw/xwin/winpriv.c
@@ -0,0 +1,131 @@
+/*
+ * Export window information for the Windows-OpenGL GLX implementation.
+ *
+ * Authors: Alexander Gottwald
+ */
+
+#include "win.h"
+#include "winpriv.h"
+#include "winwindow.h"
+
+void
+winCreateWindowsWindow (WindowPtr pWin);
+/**
+ * Return size and handles of a window.
+ * If pWin is NULL, then the information for the root window is requested.
+ */ 
+extern void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo)
+{
+    /* Sanity check */
+    if (pWinInfo == NULL)
+        return;
+
+    winDebug("%s:%d pWin=%p\n", __FUNCTION__, __LINE__, pWin);
+
+    /* a real window was requested */
+    if (pWin != NULL) 
+    {
+        /* Initialize the size information */
+        RECT rect = {
+            pWin->drawable.x,
+            pWin->drawable.y,
+            pWin->drawable.x + pWin->drawable.width,
+            pWin->drawable.y + pWin->drawable.height
+        }, rect_extends;
+        /* Get the window and screen privates */
+        ScreenPtr pScreen = pWin->drawable.pScreen;
+        winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
+        winScreenInfoPtr pScreenInfo = NULL;
+
+        rect_extends = rect;
+        OffsetRect(&rect_extends, -pWin->drawable.x, -pWin->drawable.y);
+
+        if (pWinScreen == NULL) 
+        {
+            ErrorF("winGetWindowInfo: screen has no privates\n");
+            return;
+        }
+        
+        pWinInfo->hwnd = pWinScreen->hwndScreen;
+        pWinInfo->hrgn = NULL;
+        pWinInfo->rect = rect;
+    
+
+        pScreenInfo = pWinScreen->pScreenInfo;
+#ifdef XWIN_MULTIWINDOW
+        /* check for multiwindow mode */
+        if (pScreenInfo->fMultiWindow)
+        {
+            winWindowPriv(pWin);
+
+            if (pWinPriv == NULL)
+            {
+                ErrorF("winGetWindowInfo: window has no privates\n");
+                return;
+            }
+
+            if (pWinPriv->hWnd == NULL)
+            {
+                winCreateWindowsWindow(pWin);
+            }
+            if (pWinPriv->hWnd != NULL) { 
+                
+                /* copy size and window handle */
+                pWinInfo->rect = rect_extends;
+                pWinInfo->hwnd = pWinPriv->hWnd;
+
+                /* Copy window region */
+                if (pWinInfo->hrgn)
+                    DeleteObject(pWinInfo->hrgn);
+                pWinInfo->hrgn = CreateRectRgn(0,0,0,0);
+                CombineRgn(pWinInfo->hrgn, pWinPriv->hRgn, pWinPriv->hRgn, 
+                        RGN_COPY);
+            }
+            
+            return;
+        }
+#endif
+#ifdef XWIN_MULTIWINDOWEXTWM
+        /* check for multiwindow external wm mode */
+        if (pScreenInfo->fMWExtWM)
+        {
+            win32RootlessWindowPtr pRLWinPriv
+                = (win32RootlessWindowPtr) RootlessFrameForWindow (pWin, FALSE);
+
+            if (pRLWinPriv == NULL) {
+                ErrorF("winGetWindowInfo: window has no privates\n");
+                return;
+            }
+            
+            if (pRLWinPriv->hWnd != NULL)
+            {
+                /* copy size and window handle */
+                pWinInfo->rect = rect_extends;
+                pWinInfo->hwnd = pRLWinPriv->hWnd;
+            }
+            return;
+        }
+#endif
+    } 
+    else 
+    {
+        RECT rect = {0, 0, 0, 0};
+        ScreenPtr pScreen = g_ScreenInfo[0].pScreen;
+        winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
+
+        pWinInfo->hwnd = NULL;
+        pWinInfo->hrgn = NULL;
+        pWinInfo->rect = rect;
+        
+        if (pWinScreen == NULL)
+        {
+            ErrorF("winGetWindowInfo: screen has no privates\n");
+            return;
+        }
+
+        ErrorF("winGetWindowInfo: returning root window\n");
+
+        pWinInfo->hwnd = pWinScreen->hwndScreen;
+    }
+    return;
+}