compositor: replace weston_buffer_viewport::viewport_set
Remove the explicit boolean variable, and use illegal width to denote
"not set".
Split the boolean into two, so we can later start having buffer.src_*
and surface.* set or not set independently. This may become useful when
the wl_viewport interface is changed to allow modifying them separately.
At the moment, both buffer.src_width and surface.width conditions are
always in sync.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/src/compositor.h b/src/compositor.h
index f1f126b..d2afacd 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -662,16 +662,18 @@
/* wl_surface.set_scaling_factor */
int32_t scale;
- /* bool for whether wl_viewport.set has been
- * called yet (before this is called there is no
- * cropping or scaling on the surface) */
- int viewport_set; /* bool */
-
+ /*
+ * If src_width != wl_fixed_from_int(-1),
+ * then and only then src_* are used.
+ */
wl_fixed_t src_x, src_y;
wl_fixed_t src_width, src_height;
} buffer;
struct {
+ /*
+ * If width == -1, the size is inferred from the buffer.
+ */
int32_t width, height;
} surface;
};