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Fixed segfault w/ broken Xinerama configs.

This commit is contained in:
Matthias Hopf 2006-08-16 18:17:58 +02:00
parent a815b9b990
commit 73e58adda9
1 changed files with 36 additions and 0 deletions
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36
hw/xfree86/common/xf86Cursor.c
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@ -576,24 +576,40 @@ xf86InitOrigins(void)
/* force edge lists */ /* force edge lists */
if(screen->left) { if(screen->left) {
ref = screen->left->screennum; ref = screen->left->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
pLayout->left = AddEdge(pLayout->left, pLayout->left = AddEdge(pLayout->left,
0, xf86Screens[i]->pScreen->height, 0, xf86Screens[i]->pScreen->height,
xf86Screens[ref]->pScreen->width, 0, ref); xf86Screens[ref]->pScreen->width, 0, ref);
} }
if(screen->right) { if(screen->right) {
ref = screen->right->screennum; ref = screen->right->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
pScreen = xf86Screens[i]->pScreen; pScreen = xf86Screens[i]->pScreen;
pLayout->right = AddEdge(pLayout->right, pLayout->right = AddEdge(pLayout->right,
0, pScreen->height, -pScreen->width, 0, ref); 0, pScreen->height, -pScreen->width, 0, ref);
} }
if(screen->top) { if(screen->top) {
ref = screen->top->screennum; ref = screen->top->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
pLayout->up = AddEdge(pLayout->up, pLayout->up = AddEdge(pLayout->up,
0, xf86Screens[i]->pScreen->width, 0, xf86Screens[i]->pScreen->width,
0, xf86Screens[ref]->pScreen->height, ref); 0, xf86Screens[ref]->pScreen->height, ref);
} }
if(screen->bottom) { if(screen->bottom) {
ref = screen->bottom->screennum; ref = screen->bottom->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
pScreen = xf86Screens[i]->pScreen; pScreen = xf86Screens[i]->pScreen;
pLayout->down = AddEdge(pLayout->down, pLayout->down = AddEdge(pLayout->down,
0, pScreen->width, 0, -pScreen->height, ref); 0, pScreen->width, 0, -pScreen->height, ref);
@ -609,6 +625,10 @@ xf86InitOrigins(void)
break; break;
case PosRelative: case PosRelative:
ref = screen->refscreen->screennum; ref = screen->refscreen->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
if(screensLeft & (1 << ref)) break; if(screensLeft & (1 << ref)) break;
dixScreenOrigins[i].x = dixScreenOrigins[ref].x + screen->x; dixScreenOrigins[i].x = dixScreenOrigins[ref].x + screen->x;
dixScreenOrigins[i].y = dixScreenOrigins[ref].y + screen->y; dixScreenOrigins[i].y = dixScreenOrigins[ref].y + screen->y;
@ -616,6 +636,10 @@ xf86InitOrigins(void)
break; break;
case PosRightOf: case PosRightOf:
ref = screen->refscreen->screennum; ref = screen->refscreen->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
if(screensLeft & (1 << ref)) break; if(screensLeft & (1 << ref)) break;
pScreen = xf86Screens[ref]->pScreen; pScreen = xf86Screens[ref]->pScreen;
dixScreenOrigins[i].x = dixScreenOrigins[i].x =
@ -625,6 +649,10 @@ xf86InitOrigins(void)
break; break;
case PosLeftOf: case PosLeftOf:
ref = screen->refscreen->screennum; ref = screen->refscreen->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
if(screensLeft & (1 << ref)) break; if(screensLeft & (1 << ref)) break;
pScreen = xf86Screens[i]->pScreen; pScreen = xf86Screens[i]->pScreen;
dixScreenOrigins[i].x = dixScreenOrigins[i].x =
@ -634,6 +662,10 @@ xf86InitOrigins(void)
break; break;
case PosBelow: case PosBelow:
ref = screen->refscreen->screennum; ref = screen->refscreen->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
if(screensLeft & (1 << ref)) break; if(screensLeft & (1 << ref)) break;
pScreen = xf86Screens[ref]->pScreen; pScreen = xf86Screens[ref]->pScreen;
dixScreenOrigins[i].x = dixScreenOrigins[ref].x; dixScreenOrigins[i].x = dixScreenOrigins[ref].x;
@ -643,6 +675,10 @@ xf86InitOrigins(void)
break; break;
case PosAbove: case PosAbove:
ref = screen->refscreen->screennum; ref = screen->refscreen->screennum;
if (! xf86Screens[ref] || ! xf86Screens[ref]->pScreen) {
ErrorF("Referenced uninitialized screen in Layout!\n");
break;
}
if(screensLeft & (1 << ref)) break; if(screensLeft & (1 << ref)) break;
pScreen = xf86Screens[i]->pScreen; pScreen = xf86Screens[i]->pScreen;
dixScreenOrigins[i].x = dixScreenOrigins[ref].x; dixScreenOrigins[i].x = dixScreenOrigins[ref].x;