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xfree86: crtc: use CloseScreen hook 

Wrapping ScreenRec's function pointers is problematic for many reasons,
so use the new screen close notify hook instead.

This one doesn't look so trivial at first glance, but I've checked that
other functions called by xf86CrtcCloseScreen() just free'ing up some
memory and removing the CRTCs from some lists - thus a change in
execution order really shouldn't matter at all.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2025-04-29 17:35:44 +02:00
parent cc847cc43a
commit 866afe931a
2 changed files with 6 additions and 11 deletions
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15
hw/xfree86/modes/xf86Crtc.c
View File

@ -29,6 +29,7 @@
#include <string.h>
#include <stdio.h>
#include "dix/screen_hooks_priv.h"
#include "randr/randrstr_priv.h"
#include "xf86.h"
@ -768,9 +769,11 @@ xf86CrtcCreateScreenResources(ScreenPtr screen)
/*
* Clean up config on server reset
*/
static Bool
xf86CrtcCloseScreen(ScreenPtr screen)
static void xf86CrtcCloseScreen(CallbackListPtr *pcbl,
ScreenPtr screen, void *unused)
{
dixScreenUnhookClose(screen, xf86CrtcCloseScreen);
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o, c;
@ -791,20 +794,15 @@ xf86CrtcCloseScreen(ScreenPtr screen)
crtc->randr_crtc = NULL;
}
screen->CloseScreen = config->CloseScreen;
xf86RotateCloseScreen(screen);
xf86RandR12CloseScreen(screen);
screen->CloseScreen(screen);
/* detach any providers */
if (config->randr_provider) {
RRProviderDestroy(config->randr_provider);
config->randr_provider = NULL;
}
return TRUE;
}
/*
@ -846,8 +844,7 @@ xf86CrtcScreenInit(ScreenPtr screen)
config->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xf86CrtcCreateScreenResources;
config->CloseScreen = screen->CloseScreen;
screen->CloseScreen = xf86CrtcCloseScreen;
dixScreenHookClose(screen, xf86CrtcCloseScreen);
/* This might still be marked wrapped from a previous generation */
config->BlockHandler = NULL;

2
hw/xfree86/modes/xf86Crtc.h
View File

@ -799,8 +799,6 @@ typedef struct _xf86CrtcConfig {
CreateScreenResourcesProcPtr CreateScreenResources;
CloseScreenProcPtr CloseScreen;
/* Cursor information */
xf86CursorInfoPtr cursor_info;
CursorPtr cursor;