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Better detection of XShm errors (should now run on remote displays).

This commit is contained in:
Lionel Ulmer 1999-02-11 13:24:52 +00:00 committed by Alexandre Julliard
parent 21149d0943
commit 98db0be819
1 changed files with 74 additions and 8 deletions
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82
graphics/ddraw.c
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@ -106,6 +106,10 @@ static struct IDirect3D2_VTable d3d2vt;
static XF86VidModeModeInfo *orig_mode = NULL;
#endif
#ifdef HAVE_LIBXXSHM
static int XShmErrorFlag = 0;
#endif
BOOL32
DDRAW_DGA_Available(void)
{
@ -2312,12 +2316,17 @@ static HRESULT WINAPI DGA_IDirectDraw2_CreateSurface(
#endif /* defined(HAVE_LIBXXF86DGA) */
}
static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
XImage *img;
void *img_data;
#ifdef HAVE_LIBXXSHM
if (this->e.xlib.xshm_active) {
/* Error handlers for Image creation */
static int XShmErrorHandler(Display *dpy, XErrorEvent *event) {
XShmErrorFlag = 1;
return 0;
}
static XImage *create_xshmimage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
XImage *img;
int (*WineXHandler)(Display *, XErrorEvent *);
img = TSXShmCreateImage(display,
DefaultVisualOfScreen(X11DRV_GetXScreen()),
this->d.screen_depth,
@ -2327,11 +2336,16 @@ static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
lpdsf->s.surface_desc.dwWidth,
lpdsf->s.surface_desc.dwHeight);
if (img == NULL)
if (img == NULL) {
ERR(ddraw, "Error creating XShm image. Reverting to standard X images !\n");
this->e.xlib.xshm_active = 0;
return NULL;
}
lpdsf->t.xlib.shminfo.shmid = shmget( IPC_PRIVATE, img->bytes_per_line * img->height, IPC_CREAT|0777 );
if (lpdsf->t.xlib.shminfo.shmid < 0) {
ERR(ddraw, "Error creating shared memory segment. Reverting to standard X images !\n");
this->e.xlib.xshm_active = 0;
TSXDestroyImage(img);
return NULL;
}
@ -2339,15 +2353,51 @@ static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
lpdsf->t.xlib.shminfo.shmaddr = img->data = (char*)shmat(lpdsf->t.xlib.shminfo.shmid, 0, 0);
if (img->data == (char *) -1) {
ERR(ddraw, "Error attaching shared memory segment. Reverting to standard X images !\n");
this->e.xlib.xshm_active = 0;
TSXDestroyImage(img);
shmctl(lpdsf->t.xlib.shminfo.shmid, IPC_RMID, 0);
return NULL;
}
lpdsf->t.xlib.shminfo.readOnly = False;
TSXShmAttach(display, &(lpdsf->t.xlib.shminfo));
/* This is where things start to get trickier....
First, we flush the current X connections to be sure to catch all non-XShm related
errors */
TSXSync(display, False);
/* Then we enter in the non-thread safe part of the tests */
EnterCriticalSection( &X11DRV_CritSection );
/* Reset the error flag, sets our new error handler and try to attach the surface */
XShmErrorFlag = 0;
WineXHandler = XSetErrorHandler(XShmErrorHandler);
XShmAttach(display, &(lpdsf->t.xlib.shminfo));
XSync(display, False);
/* Check the error flag */
if (XShmErrorFlag) {
/* An error occured */
XFlush(display);
XShmErrorFlag = 0;
XDestroyImage(img);
shmdt(lpdsf->t.xlib.shminfo.shmaddr);
shmctl(lpdsf->t.xlib.shminfo.shmid, IPC_RMID, 0);
XSetErrorHandler(WineXHandler);
ERR(ddraw, "Error attaching shared memory segment to X server. Reverting to standard X images !\n");
this->e.xlib.xshm_active = 0;
/* Leave the critical section */
LeaveCriticalSection( &X11DRV_CritSection );
return NULL;
}
/* Here, to be REALLY sure, I should do a XShmPutImage to check if this works,
but it may be a bit overkill.... */
XSetErrorHandler(WineXHandler);
LeaveCriticalSection( &X11DRV_CritSection );
shmctl(lpdsf->t.xlib.shminfo.shmid, IPC_RMID, 0);
if (this->d.depth != this->d.screen_depth) {
@ -2358,7 +2408,21 @@ static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
} else {
lpdsf->s.surface_desc.y.lpSurface = img->data;
}
} else {
return img;
}
#endif /* HAVE_LIBXXSHM */
static XImage *create_ximage(LPDIRECTDRAW2 this, LPDIRECTDRAWSURFACE4 lpdsf) {
XImage *img = NULL;
void *img_data;
#ifdef HAVE_LIBXXSHM
if (this->e.xlib.xshm_active) {
img = create_xshmimage(this, lpdsf);
}
if (img == NULL) {
#endif
/* Allocate surface memory */
lpdsf->s.surface_desc.y.lpSurface = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,
@ -3746,6 +3810,8 @@ HRESULT WINAPI Xlib_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnkOuter)
(*lplpDD)->ref = 1;
(*lplpDD)->d.drawable = 0; /* in SetDisplayMode */
/* At DirectDraw creation, the depth is the default depth */
(*lplpDD)->d.depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
(*lplpDD)->d.screen_depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
(*lplpDD)->d.height = MONITOR_GetHeight(&MONITOR_PrimaryMonitor);
(*lplpDD)->d.width = MONITOR_GetWidth(&MONITOR_PrimaryMonitor);