From ca58b45fbee05ef7ed938abc5308548866335937 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 1 Apr 2016 10:27:20 +0200 Subject: ui/virtio-gpu: add and use qemu_create_displaysurface_pixman Add a the new qemu_create_displaysurface_pixman function, to create a DisplaySurface backed by an existing pixman image. In that case there is no need to create a new pixman image pointing to the same backing storage. We can just use the existing image directly. This does not only simplify things a bit, but most importantly it gets the reference counting right, so the backing storage for the pixman image wouldn't be released underneath us. Use new function in virtio-gpu, where using it actually fixes use-after-free crashes. Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann Message-id: 1459499240-742-1-git-send-email-kraxel@redhat.com --- include/ui/console.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/ui') diff --git a/include/ui/console.h b/include/ui/console.h index eb9419dfd6..d5a88d93e8 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -234,6 +234,7 @@ DisplayState *init_displaystate(void); DisplaySurface *qemu_create_displaysurface_from(int width, int height, pixman_format_code_t format, int linesize, uint8_t *data); +DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image); DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height, pixman_format_code_t format, int linesize, -- cgit v1.2.3-55-g7522