xserver-multidpi/hw/xfree86/dixmods/glxmodule.c
Adam Jackson d8ec33fe05 glx: Use vnd layer for dispatch (v4)
The big change here is MakeCurrent and context tag tracking. We now
delegate context tags entirely to the vnd layer, and simply store a
pointer to the context state as the tag data. If a context is deleted
while it's current, we allocate a fake ID for the context and move the
context state there, so the tag data still points to a real context. As
a result we can stop trying so hard to detach the client from contexts
at disconnect time and just let resource destruction handle it.

Since vnd handles all the MakeCurrent protocol now, our request handlers
for it can just be return BadImplementation. We also remove a bunch of
LEGAL_NEW_RESOURCE, because now by the time we're called vnd has already
allocated its tracking resource on that XID.

v2: Update to match v2 of the vnd import, and remove more redundant work
like request length checks.

v3: Add/remove the XID map from the vendor private thunk, not the
backend. (Kyle Brenneman)

v4: Fix deletion of ghost contexts (Kyle Brenneman)

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-02-14 17:04:44 -05:00

92 lines
2.5 KiB
C

/**************************************************************************
Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
All Rights Reserved.
Permission is hereby granted, free of charge, to any person obtaining a
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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/*
* Authors:
* Kevin E. Martin <kevin@precisioninsight.com>
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86Module.h"
#include "xf86Priv.h"
#include "xf86.h"
#include "colormap.h"
#include "micmap.h"
#include "globals.h"
#include "glxserver.h"
#include "extinit.h"
#include "glx_extinit.h"
static MODULESETUPPROTO(glxSetup);
static const ExtensionModule GLXExt[] = {
{ GlxExtensionInit, "GLX", &noGlxExtension },
};
static XF86ModuleVersionInfo VersRec = {
"glx",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
1, 0, 0,
ABI_CLASS_EXTENSION,
ABI_EXTENSION_VERSION,
MOD_CLASS_NONE,
{0, 0, 0, 0}
};
_X_EXPORT XF86ModuleData glxModuleData = { &VersRec, glxSetup, NULL };
static void *
glxSetup(void *module, void *opts, int *errmaj, int *errmin)
{
static Bool setupDone = FALSE;
__GLXprovider *provider;
if (setupDone) {
if (errmaj)
*errmaj = LDR_ONCEONLY;
return NULL;
}
setupDone = TRUE;
provider = LoaderSymbol("__glXDRI2Provider");
if (provider)
GlxPushProvider(provider);
xorgGlxCreateVendor();
LoadExtensionList(GLXExt, ARRAY_SIZE(GLXExt), FALSE);
return module;
}