ui/pixman: generalize shared_image_destroy

Learn to free memfd-allocated shared memory.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20241008125028.1177932-10-marcandre.lureau@redhat.com>

1 files changed, 12 insertions, 8 deletions

diff --git a/ui/qemu-pixman.c b/ui/qemu-pixman.c
index 3870e1a215..46a91e7f7a 100644
--- a/ui/qemu-pixman.c
+++ b/ui/qemu-pixman.c
@@ -6,6 +6,7 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "ui/console.h"
+#include "qemu/memfd.h"
 #include "standard-headers/drm/drm_fourcc.h"
 #include "trace.h"
 
@@ -269,16 +270,19 @@ void qemu_pixman_glyph_render(pixman_image_t *glyph,
 }
 #endif /* CONFIG_PIXMAN */
 
-#ifdef WIN32
 void
-qemu_pixman_win32_image_destroy(pixman_image_t *image, void *data)
+qemu_pixman_shared_image_destroy(pixman_image_t *image, void *data)
 {
+    void *ptr = pixman_image_get_data(image);
+
+#ifdef WIN32
     HANDLE handle = data;
 
-    qemu_win32_map_free(
-        pixman_image_get_data(image),
-        handle,
-        &error_warn
-    );
-}
+    qemu_win32_map_free(ptr, handle, &error_warn);
+#else
+    int shmfd = GPOINTER_TO_INT(data);
+    size_t size = pixman_image_get_height(image) * pixman_image_get_stride(image);
+
+    qemu_memfd_free(ptr, size, shmfd);
 #endif
+}