vidmode: Drop the unused event code

As the code says, this is "far from complete".  So far, in fact, that
it's been basically untouched for twenty years (XFree86 3.1!).  As far
as I can tell it was never enabled in any XFree86 build, and certainly
has never been enabled since Xorg 7.0.

Also, K&R.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

1 files changed, 6 insertions, 216 deletions

diff --git a/hw/xfree86/common/xf86vmode.c b/hw/xfree86/common/xf86vmode.c
index 818e7dc45..d133687b6 100644
--- a/hw/xfree86/common/xf86vmode.c
+++ b/hw/xfree86/common/xf86vmode.c
@@ -71,46 +71,6 @@ typedef struct {
 static unsigned char XF86VidModeReqCode = 0;
 #endif
 
-/* The XF86VIDMODE_EVENTS code is far from complete */
-
-#ifdef XF86VIDMODE_EVENTS
-static int XF86VidModeEventBase = 0;
-
-static void SXF86VidModeNotifyEvent(xXF86VidModeNotifyEvent * /* from */ , xXF86VidModeNotifyEvent *    /* to */
-    );
-
-static RESTYPE EventType;       /* resource type for event masks */
-
-typedef struct _XF86VidModeEvent *XF86VidModeEventPtr;
-
-typedef struct _XF86VidModeEvent {
-    XF86VidModeEventPtr next;
-    ClientPtr client;
-    ScreenPtr screen;
-    XID resource;
-    CARD32 mask;
-} XF86VidModeEventRec;
-
-static int XF86VidModeFreeEvents();
-
-typedef struct _XF86VidModeScreenPrivate {
-    XF86VidModeEventPtr events;
-    Bool hasWindow;
-} XF86VidModeScreenPrivateRec, *XF86VidModeScreenPrivatePtr;
-
-static DevPrivateKeyRec ScreenPrivateKeyRec;
-
-#define ScreenPrivateKey (&ScreenPrivateKeyRec)
-
-#define GetScreenPrivate(s) ((ScreenSaverScreenPrivatePtr) \
-    dixLookupPrivate(&(s)->devPrivates, ScreenPrivateKey))
-#define SetScreenPrivate(s,v) \
-    dixSetPrivate(&(s)->devPrivates, ScreenPrivateKey, v)
-#define SetupScreen(s)  ScreenSaverScreenPrivatePtr pPriv = GetScreenPrivate(s)
-
-#define New(t)  (malloc(sizeof (t)))
-#endif
-
 #ifdef DEBUG
 #define DEBUG_P(x) ErrorF(x"\n");
 #else
@@ -128,159 +88,6 @@ ClientMajorVersion(ClientPtr client)
         return pPriv->major;
 }
 
-#ifdef XF86VIDMODE_EVENTS
-static void
-CheckScreenPrivate(pScreen)
-ScreenPtr
- pScreen;
-{
-    SetupScreen(pScreen);
-
-    if (!pPriv)
-        return;
-    if (!pPriv->events && !pPriv->hasWindow) {
-        free(pPriv);
-        SetScreenPrivate(pScreen, NULL);
-    }
-}
-
-static XF86VidModeScreenPrivatePtr
-MakeScreenPrivate(pScreen)
-ScreenPtr
- pScreen;
-{
-    SetupScreen(pScreen);
-
-    if (pPriv)
-        return pPriv;
-    pPriv = New(XF86VidModeScreenPrivateRec);
-    if (!pPriv)
-        return 0;
-    pPriv->events = 0;
-    pPriv->hasWindow = FALSE;
-    SetScreenPrivate(pScreen, pPriv);
-    return pPriv;
-}
-
-static unsigned long
-getEventMask(ScreenPtr pScreen, ClientPtr client)
-{
-    SetupScreen(pScreen);
-    XF86VidModeEventPtr pEv;
-
-    if (!pPriv)
-        return 0;
-    for (pEv = pPriv->events; pEv; pEv = pEv->next)
-        if (pEv->client == client)
-            return pEv->mask;
-    return 0;
-}
-
-static Bool
-setEventMask(ScreenPtr pScreen, ClientPtr client, unsigned long mask)
-{
-    SetupScreen(pScreen);
-    XF86VidModeEventPtr pEv, *pPrev;
-
-    if (getEventMask(pScreen, client) == mask)
-        return TRUE;
-    if (!pPriv) {
-        pPriv = MakeScreenPrivate(pScreen);
-        if (!pPriv)
-            return FALSE;
-    }
-    for (pPrev = &pPriv->events; pEv = *pPrev; pPrev = &pEv->next)
-        if (pEv->client == client)
-            break;
-    if (mask == 0) {
-        *pPrev = pEv->next;
-        free(pEv);
-        CheckScreenPrivate(pScreen);
-    }
-    else {
-        if (!pEv) {
-            pEv = New(ScreenSaverEventRec);
-            if (!pEv) {
-                CheckScreenPrivate(pScreen);
-                return FALSE;
-            }
-            *pPrev = pEv;
-            pEv->next = NULL;
-            pEv->client = client;
-            pEv->screen = pScreen;
-            pEv->resource = FakeClientID(client->index);
-        }
-        pEv->mask = mask;
-    }
-    return TRUE;
-}
-
-static int
-XF86VidModeFreeEvents(void *value, XID id)
-{
-    XF86VidModeEventPtr pOld = (XF86VidModeEventPtr) value;
-    ScreenPtr pScreen = pOld->screen;
-
-    SetupScreen(pScreen);
-    XF86VidModeEventPtr pEv, *pPrev;
-
-    if (!pPriv)
-        return TRUE;
-    for (pPrev = &pPriv->events; pEv = *pPrev; pPrev = &pEv->next)
-        if (pEv == pOld)
-            break;
-    if (!pEv)
-        return TRUE;
-    *pPrev = pEv->next;
-    free(pEv);
-    CheckScreenPrivate(pScreen);
-    return TRUE;
-}
-
-static void
-SendXF86VidModeNotify(ScreenPtr pScreen, int state, Bool forced)
-{
-    XF86VidModeScreenPrivatePtr pPriv;
-    unsigned long mask;
-    xXF86VidModeNotifyEvent ev;
-    int kind;
-
-    UpdateCurrentTimeIf();
-    mask = XF86VidModeNotifyMask;
-    pScreen = screenInfo.screens[pScreen->myNum];
-    pPriv = GetScreenPrivate(pScreen);
-    if (!pPriv)
-        return;
-    kind = XF86VidModeModeChange;
-    for (pEv = pPriv->events; pEv; pEv = pEv->next) {
-        if (pEv->mask & mask) {
-            XF86VidModeEventPtr pEv = {
-                .type = XF86VidModeNotify + XF86VidModeEventBase,
-                .state = state,
-                .timestamp = currentTime.milliseconds,
-                .root = pScreen->root->drawable.id,
-                .kind = kind,
-                .forced = forced
-            };
-            WriteEventsToClient(pEv->client, 1, (xEvent *) &ev);
-        }
-    }
-}
-
-static void
-SXF86VidModeNotifyEvent(xXF86VidModeNotifyEvent * from,
-                        xXF86VidModeNotifyEvent * to)
-{
-    to->type = from->type;
-    to->state = from->state;
-    cpswaps(from->sequenceNumber, to->sequenceNumber);
-    cpswapl(from->timestamp, to->timestamp);
-    cpswapl(from->root, to->root);
-    to->kind = from->kind;
-    to->forced = from->forced;
-}
-#endif
-
 static int
 ProcXF86VidModeQueryVersion(ClientPtr client)
 {
@@ -2124,14 +1931,6 @@ XFree86VidModeExtensionInit(void)
 
     if (!dixRegisterPrivateKey(&VidModeClientPrivateKeyRec, PRIVATE_CLIENT, 0))
         return;
-#ifdef XF86VIDMODE_EVENTS
-    if (!dixRegisterPrivateKey(&ScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
-        return;
-#endif
-
-#ifdef XF86VIDMODE_EVENTS
-    EventType = CreateNewResourceType(XF86VidModeFreeEvents, "VidModeEvent");
-#endif
 
     for (i = 0; i < screenInfo.numScreens; i++) {
         pScreen = screenInfo.screens[i];
@@ -2142,24 +1941,15 @@ XFree86VidModeExtensionInit(void)
     if (!enabled)
         return;
 
-    if (
-#ifdef XF86VIDMODE_EVENTS
-           EventType &&
-#endif
-           (extEntry = AddExtension(XF86VIDMODENAME,
-                                    XF86VidModeNumberEvents,
-                                    XF86VidModeNumberErrors,
-                                    ProcXF86VidModeDispatch,
-                                    SProcXF86VidModeDispatch,
-                                    NULL, StandardMinorOpcode))) {
+    if ((extEntry = AddExtension(XF86VIDMODENAME,
+                                 XF86VidModeNumberEvents,
+                                 XF86VidModeNumberErrors,
+                                 ProcXF86VidModeDispatch,
+                                 SProcXF86VidModeDispatch,
+                                 NULL, StandardMinorOpcode))) {
 #if 0
         XF86VidModeReqCode = (unsigned char) extEntry->base;
 #endif
         VidModeErrorBase = extEntry->errorBase;
-#ifdef XF86VIDMODE_EVENTS
-        XF86VidModeEventBase = extEntry->eventBase;
-        EventSwapVector[XF86VidModeEventBase] =
-            (EventSwapPtr) SXF86VidModeNotifyEvent;
-#endif
     }
 }