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drisw/glx: implement getImageShm

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Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Marc-André Lureau 2015-06-15 15:07:34 +02:00 • committed by Dave Airlie
parent 17b27725fe
commit 33ce3aa512
1 changed files with 30 additions and 1 deletions
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31
src/glx/drisw_glx.c
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@ -313,6 +313,32 @@ swrastGetImage(__DRIdrawable * read,
swrastGetImage2(read, x, y, w, h, 0, data, loaderPrivate);
}
static void
swrastGetImageShm(__DRIdrawable * read,
int x, int y, int w, int h,
int shmid, void *loaderPrivate)
{
struct drisw_drawable *prp = loaderPrivate;
__GLXDRIdrawable *pread = &(prp->base);
Display *dpy = pread->psc->dpy;
Drawable readable;
XImage *ximage;
if (!prp->ximage || shmid != prp->shminfo.shmid) {
if (!XCreateDrawable(prp, shmid, dpy))
return;
}
readable = pread->xDrawable;
ximage = prp->ximage;
ximage->data = prp->shminfo.shmaddr; /* no offset */
ximage->width = w;
ximage->height = h;
ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32);
XShmGetImage(dpy, readable, ximage, x, y, ~0L);
}
static __DRIswrastLoaderExtension swrastLoaderExtension = {
.base = {__DRI_SWRAST_LOADER, 4 },
@ -322,6 +348,7 @@ static __DRIswrastLoaderExtension swrastLoaderExtension = {
.putImage2 = swrastPutImage2,
.getImage2 = swrastGetImage2,
.putImageShm = swrastPutImageShm,
.getImageShm = swrastGetImageShm,
};
static const __DRIextension *loader_extensions[] = {
@ -802,8 +829,10 @@ driswCreateScreen(int screen, struct glx_display *priv)
if (extensions == NULL)
goto handle_error;
if (!check_xshm(psc->base.dpy))
if (!check_xshm(psc->base.dpy)) {
swrastLoaderExtension.putImageShm = NULL;
swrastLoaderExtension.getImageShm = NULL;
}
for (i = 0; extensions[i]; i++) {
if (strcmp(extensions[i]->name, __DRI_CORE) == 0)