xref: /OK3568_Linux_fs/external/xserver/hw/xwin/glx/winpriv.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1 /*
2  * Export window information for the Windows-OpenGL GLX implementation.
3  *
4  * Authors: Alexander Gottwald
5  */
6 
7 #ifdef HAVE_XWIN_CONFIG_H
8 #include <xwin-config.h>
9 #endif
10 #include "win.h"
11 #include "winpriv.h"
12 #include "winwindow.h"
13 
14 void
15  winCreateWindowsWindow(WindowPtr pWin);
16 
17 /**
18  * Return size and handles of a window.
19  * If pWin is NULL, then the information for the root window is requested.
20  */
21 HWND
winGetWindowInfo(WindowPtr pWin)22 winGetWindowInfo(WindowPtr pWin)
23 {
24     winTrace("%s: pWin %p XID 0x%x\n", __FUNCTION__, pWin, (unsigned int)pWin->drawable.id);
25 
26     /* a real window was requested */
27     if (pWin != NULL) {
28         /* Get the window and screen privates */
29         ScreenPtr pScreen = pWin->drawable.pScreen;
30         winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
31         winScreenInfoPtr pScreenInfo = NULL;
32         HWND hwnd = NULL;
33 
34         if (pWinScreen == NULL) {
35             ErrorF("winGetWindowInfo: screen has no privates\n");
36             return NULL;
37         }
38 
39         hwnd = pWinScreen->hwndScreen;
40 
41         pScreenInfo = pWinScreen->pScreenInfo;
42         /* check for multiwindow mode */
43         if (pScreenInfo->fMultiWindow) {
44             winWindowPriv(pWin);
45 
46             if (pWinPriv == NULL) {
47                 ErrorF("winGetWindowInfo: window has no privates\n");
48                 return hwnd;
49             }
50 
51             if (pWinPriv->hWnd == NULL) {
52                 winCreateWindowsWindow(pWin);
53                 winDebug("winGetWindowInfo: forcing window to exist\n");
54             }
55 
56             if (pWinPriv->hWnd != NULL) {
57                 /* copy window handle */
58                 hwnd = pWinPriv->hWnd;
59 
60                 /* mark GLX active on that hwnd */
61                 pWinPriv->fWglUsed = TRUE;
62             }
63 
64             return hwnd;
65         }
66 #ifdef XWIN_MULTIWINDOWEXTWM
67         /* check for multiwindow external wm mode */
68         if (pScreenInfo->fMWExtWM) {
69             win32RootlessWindowPtr pRLWinPriv
70                 = (win32RootlessWindowPtr) RootlessFrameForWindow(pWin, FALSE);
71 
72             if (pRLWinPriv == NULL) {
73                 ErrorF("winGetWindowInfo: window has no privates\n");
74                 return hwnd;
75             }
76 
77             if (pRLWinPriv->hWnd != NULL) {
78                 /* copy window handle */
79                 hwnd = pRLWinPriv->hWnd;
80             }
81             return hwnd;
82         }
83 #endif
84     }
85     else {
86         ScreenPtr pScreen = g_ScreenInfo[0].pScreen;
87         winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
88 
89         if (pWinScreen == NULL) {
90             ErrorF("winGetWindowInfo: screen has no privates\n");
91             return NULL;
92         }
93 
94         ErrorF("winGetWindowInfo: returning root window\n");
95 
96         return pWinScreen->hwndScreen;
97     }
98 
99     return NULL;
100 }
101 
102 Bool
winCheckScreenAiglxIsSupported(ScreenPtr pScreen)103 winCheckScreenAiglxIsSupported(ScreenPtr pScreen)
104 {
105     winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
106     winScreenInfoPtr pScreenInfo = pWinScreen->pScreenInfo;
107 
108     if (pScreenInfo->fMultiWindow)
109         return TRUE;
110 
111 #ifdef XWIN_MULTIWINDOWEXTWM
112     if (pScreenInfo->fMWExtWM)
113         return TRUE;
114 #endif
115 
116     return FALSE;
117 }
118 
119 void
winSetScreenAiglxIsActive(ScreenPtr pScreen)120 winSetScreenAiglxIsActive(ScreenPtr pScreen)
121 {
122     winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen);
123     pWinScreen->fNativeGlActive = TRUE;
124 }
125