[PATCH RFC 14/14] Reuse more validate_surface

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
---
 server/display-channel.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/server/display-channel.c b/server/display-channel.c
index cf019fe..c4d07f7 100644
--- a/server/display-channel.c
+++ b/server/display-channel.c
@@ -968,15 +968,15 @@ static void draw_depend_on_me(DisplayChannel *display, RedSurface *surface)
 static int validate_drawable_bbox(DisplayChannel *display, RedDrawable *drawable)
 {
         DrawContext *context;
-        uint32_t surface_id = drawable->surface_id;
 
         /* surface_id must be validated before calling into
          * validate_drawable_bbox
          */
-        if (!display_channel_validate_surface(display, drawable->surface_id)) {
+        RedSurface *surface = display_channel_validate_surface(display, drawable->surface_id);
+        if (!surface) {
             return FALSE;
         }
-        context = &display->priv->surfaces[surface_id].context;
+        context = &surface->context;
 
         if (drawable->bbox.top < 0)
                 return FALSE;
@@ -1687,12 +1687,11 @@ void display_channel_update(DisplayChannel *display,
                             QXLRect **qxl_dirty_rects, uint32_t *num_dirty_rects)
 {
     SpiceRect rect;
-    RedSurface *surface;
+    RedSurface *surface = display_channel_validate_surface(display, surface_id);
 
-    spice_return_if_fail(display_channel_validate_surface(display, surface_id));
+    spice_return_if_fail(surface);
 
     red_get_rect_ptr(&rect, area);
-    surface = &display->priv->surfaces[surface_id];
     display_channel_surface_draw(display, surface, &rect);
 
     if (*qxl_dirty_rects == NULL) {
@@ -1732,11 +1731,10 @@ static void display_channel_destroy_surface(DisplayChannel *display, RedSurface
 
 void display_channel_destroy_surface_wait(DisplayChannel *display, uint32_t surface_id)
 {
-    if (!display_channel_validate_surface(display, surface_id))
-        return;
-    RedSurface *surface = &display->priv->surfaces[surface_id];
-    if (!surface->context.canvas)
+    RedSurface *surface = display_channel_validate_surface(display, surface_id);
+    if (!surface) {
         return;
+    }
 
     draw_depend_on_me(display, surface);
     /* note that draw_depend_on_me must be called before current_remove_all.
-- 
2.7.4

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