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Xinerama: lambda-esque macro for walking Xinerama screens

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Move the walking loops on Xinerama screens into lambda-esque macros:
the callers look quite like we've been using lambda functions and
closures, but actually are just fancy macro trickery.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult
2025-08-12 13:33:38 +02:00
committed by Enrico Weigelt
parent e3d9f4c3ef
commit eb17b34362
15 changed files with 335 additions and 446 deletions
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40
composite/compext.c
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@@ -580,13 +580,12 @@ ProcCompositeRedirectWindow(ClientPtr client)
return rc;
}
int walkScreenIdx;
FOR_NSCREENS_FORWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_FORWARD({
stuff->window = win->info[walkScreenIdx].id;
rc = SingleCompositeRedirectWindow(client, stuff);
if (rc != Success)
break;
}
});
return rc;
#else
@@ -613,13 +612,12 @@ ProcCompositeRedirectSubwindows(ClientPtr client)
return rc;
}
unsigned int walkScreenIdx;
FOR_NSCREENS_FORWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_FORWARD({
stuff->window = win->info[walkScreenIdx].id;
rc = SingleRedirectSubwindows(client, stuff);
if (rc != Success)
break;
}
});
return rc;
#else
@@ -646,13 +644,12 @@ ProcCompositeUnredirectWindow(ClientPtr client)
return rc;
}
unsigned int walkScreenIdx;
FOR_NSCREENS_FORWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_FORWARD({
stuff->window = win->info[walkScreenIdx].id;
rc = SingleCompositeUnredirectWindow(client, stuff);
if (rc != Success)
break;
}
});
return rc;
#else
@@ -679,13 +676,12 @@ ProcCompositeUnredirectSubwindows(ClientPtr client)
return rc;
}
unsigned int walkScreenIdx;
FOR_NSCREENS_FORWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_FORWARD({
stuff->window = win->info[walkScreenIdx].id;
rc = SingleCompositeUnredirectSubwindows(client, stuff);
if (rc != Success)
break;
}
});
return rc;
#else
@@ -724,8 +720,7 @@ ProcCompositeNameWindowPixmap(ClientPtr client)
newPix->u.pix.shared = FALSE;
panoramix_setup_ids(newPix, client, stuff->pixmap);
int walkScreenIdx;
FOR_NSCREENS_BACKWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_BACKWARD({
rc = dixLookupResourceByType((void **) &pWin, win->info[walkScreenIdx].id,
X11_RESTYPE_WINDOW, client,
DixGetAttrAccess);
@@ -756,7 +751,7 @@ ProcCompositeNameWindowPixmap(ClientPtr client)
return BadAlloc;
++pPixmap->refcnt;
}
});
if (!AddResource(stuff->pixmap, XRT_PIXMAP, (void *) newPix))
return BadAlloc;
@@ -800,8 +795,7 @@ ProcCompositeGetOverlayWindow(ClientPtr client)
overlayWin->u.win.root = FALSE;
}
int walkScreenIdx;
FOR_NSCREENS_BACKWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_BACKWARD({
rc = dixLookupResourceByType((void **) &pWin, win->info[walkScreenIdx].id,
X11_RESTYPE_WINDOW, client,
DixGetAttrAccess);
@@ -842,14 +836,13 @@ ProcCompositeGetOverlayWindow(ClientPtr client)
free(overlayWin);
return rc;
}
}
});
if (overlayWin) {
FOR_NSCREENS_BACKWARD(walkScreenIdx) {
ScreenPtr walkScreen = screenInfo.screens[walkScreenIdx];
XINERAMA_FOR_EACH_SCREEN_BACKWARD({
cs = GetCompScreen(walkScreen);
overlayWin->info[walkScreenIdx].id = cs->pOverlayWin->drawable.id;
}
});
AddResource(overlayWin->info[0].id, XRT_WINDOW, overlayWin);
}
@@ -891,8 +884,7 @@ ProcCompositeReleaseOverlayWindow(ClientPtr client)
return rc;
}
int walkScreenIdx;
FOR_NSCREENS_BACKWARD(walkScreenIdx) {
XINERAMA_FOR_EACH_SCREEN_BACKWARD({
if ((rc = dixLookupResourceByType((void **) &pWin, win->info[walkScreenIdx].id,
XRT_WINDOW, client,
DixUnknownAccess))) {
@@ -910,7 +902,7 @@ ProcCompositeReleaseOverlayWindow(ClientPtr client)
/* The delete function will free the client structure */
FreeResource(pOc->resource, X11_RESTYPE_NONE);
}
});
return Success;
#else