[PATCH] Fix screen and pointer limits on RandR resize

[Antoine Martin]

Signed-off-by: Antoine Martin <antoine at nagafix.co.uk>
---
 src/dummy_driver.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/dummy_driver.c b/src/dummy_driver.c
index 9d4d5bf..737f11c 100644
--- a/src/dummy_driver.c
+++ b/src/dummy_driver.c
@@ -49,6 +49,9 @@
 #include <X11/extensions/xf86dgaproto.h>
 #endif
 
+/* Needed for fixing pointer limits on resize */
+#include "inputstr.h"
+
 /* Mandatory functions */
 static const OptionInfoRec *	DUMMYAvailableOptions(int chipid, int busid);
 static void     DUMMYIdentify(int flags);
@@ -666,7 +669,30 @@ Bool
 DUMMYSwitchMode(SWITCH_MODE_ARGS_DECL)
 {
     SCRN_INFO_PTR(arg);
-    return dummyModeInit(pScrn, mode);
+    if (!dummyModeInit(pScrn, mode))
+        return FALSE;
+
+    //ensure the screen dimensions are also updated:
+    pScrn->pScreen->width = mode->HDisplay;
+    pScrn->pScreen->height = mode->VDisplay;
+    pScrn->virtualX = mode->HDisplay;
+    pScrn->virtualY = mode->VDisplay;
+    pScrn->frameX1 = mode->HDisplay;
+    pScrn->frameY1 = mode->VDisplay;
+
+    //ensure the pointer uses the new limits too:
+    DeviceIntPtr pDev;
+    SpritePtr pSprite;
+    for (pDev = inputInfo.devices; pDev; pDev = pDev->next) {
+        if (pDev->spriteInfo!=NULL && pDev->spriteInfo->sprite!=NULL) {
+            pSprite = pDev->spriteInfo->sprite;
+            pSprite->hotLimits.x2 = mode->HDisplay;
+            pSprite->hotLimits.y2 = mode->VDisplay;
+            pSprite->physLimits.x2 = mode->HDisplay;
+            pSprite->physLimits.y2 = mode->VDisplay;
+        }
+    }
+    return TRUE;
 }
 
 /* Mandatory */
-- 
2.5.5