screenshoter: don't use hardcoded bpp value

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>

diff --git a/src/screenshooter.c b/src/screenshooter.c
index 840dfb8..662aad4 100644 (file)
--- a/src/screenshooter.c
+++ b/src/screenshooter.c
@@ -103,7 +103,7 @@ screenshooter_frame_notify(struct wl_listener *listener, void *data)
 
        output->disable_planes--;
        wl_list_remove(&listener->link);
-       stride = l->buffer->width * 4;
+       stride = l->buffer->width * (PIXMAN_FORMAT_BPP(output->compositor->read_format) / 8);
        pixels = malloc(stride * l->buffer->height);
 
        if (pixels == NULL) {