OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use union type to avoid strict aliasing problems.

Browse Source
This commit is contained in:
Alan Hourihane
2004-12-08 14:26:48 +00:00
parent c63f3cf85d
commit c69d60fbe4
1 changed files with 34 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
src/mesa/drivers/dri/common/dri_util.c
View File

@@ -232,23 +232,33 @@ static GLboolean __driAddDrawable(void *drawHash, __DRIdrawable *pdraw)
static __DRIdrawable *__driFindDrawable(void *drawHash, __DRIid draw)
{
int retcode;
__DRIdrawable *pdraw;
union
{
__DRIdrawable *pdraw;
void *ptr;
} p;
retcode = drmHashLookup(drawHash, draw, (void **)&pdraw);
retcode = drmHashLookup(drawHash, draw, &p.ptr);
if (retcode)
return NULL;
return pdraw;
return p.pdraw;
}
static void __driRemoveDrawable(void *drawHash, __DRIdrawable *pdraw)
{
int retcode;
__DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)pdraw->private;
union
{
__DRIdrawablePrivate *pdp;
void *ptr;
} p;
retcode = drmHashLookup(drawHash, pdp->draw, (void **)&pdraw);
p.pdp = (__DRIdrawablePrivate *)pdraw->private;
retcode = drmHashLookup(drawHash, p.pdp->draw, &p.ptr);
if (!retcode) { /* Found */
drmHashDelete(drawHash, pdp->draw);
drmHashDelete(drawHash, p.pdp->draw);
}
}
@@ -306,21 +316,25 @@ static GLboolean __driWindowExists(Display *dpy, GLXDrawable draw)
static void __driGarbageCollectDrawables(void *drawHash)
{
__DRIid draw;
__DRIdrawable *pdraw;
__DRInativeDisplay *dpy;
union
{
__DRIdrawable *pdraw;
void *ptr;
} p;
if (drmHashFirst(drawHash, &draw, (void **)&pdraw)) {
if (drmHashFirst(drawHash, &draw, &p.ptr)) {
do {
__DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)pdraw->private;
__DRIdrawablePrivate *pdp = (__DRIdrawablePrivate *)p.pdraw->private;
dpy = pdp->driScreenPriv->display;
if (! (*window_exists)(dpy, draw)) {
/* Destroy the local drawable data in the hash table, if the
drawable no longer exists in the Xserver */
__driRemoveDrawable(drawHash, pdraw);
(*pdraw->destroyDrawable)(dpy, pdraw->private);
_mesa_free(pdraw);
__driRemoveDrawable(drawHash, p.pdraw);
(*p.pdraw->destroyDrawable)(dpy, p.pdraw->private);
_mesa_free(p.pdraw);
}
} while (drmHashNext(drawHash, &draw, (void **)&pdraw));
} while (drmHashNext(drawHash, &draw, &p.ptr));
}
}
@@ -868,7 +882,7 @@ static void *driCreateNewDrawable(__DRInativeDisplay *dpy,
_mesa_free(pdp);
return NULL;
#else
pdp->getInfo = XF86DRIGetDrawableInfo;
pdp->getInfo = (PFNGLXGETDRAWABLEINFOPROC) XF86DRIGetDrawableInfo;
#endif /* DRI_NEW_INTERFACE_ONLY */
}
@@ -1053,16 +1067,16 @@ driCreateNewContext(__DRInativeDisplay *dpy, const __GLcontextModes *modes,
pctx->bindContext3 = driBindContext3;
pctx->unbindContext3 = driUnbindContext3;
#else
pctx->bindContext = driBindContext;
pctx->unbindContext = driUnbindContext;
pctx->bindContext = (void *)driBindContext;
pctx->unbindContext = (void *)driUnbindContext;
if ( driCompareGLXAPIVersion( 20030606 ) >= 0 ) {
pctx->bindContext2 = driBindContext2;
pctx->unbindContext2 = driUnbindContext2;
pctx->bindContext2 = (void *)driBindContext2;
pctx->unbindContext2 = (void *)driUnbindContext2;
}
if ( driCompareGLXAPIVersion( 20040415 ) >= 0 ) {
pctx->bindContext3 = driBindContext3;
pctx->unbindContext3 = driUnbindContext3;
pctx->bindContext3 = (void *)driBindContext3;
pctx->unbindContext3 = (void *)driUnbindContext3;
}
#endif