From de10168a462f57ead41800ea135476bb5ae8c678 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Tue, 12 Jan 2010 17:06:19 -0700
Subject: llvmpipe: added lp_scene_is_empty()

---
 src/gallium/drivers/llvmpipe/lp_scene.c | 22 ++++++++++++++++++++++
 src/gallium/drivers/llvmpipe/lp_scene.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/src/gallium/drivers/llvmpipe/lp_scene.c b/src/gallium/drivers/llvmpipe/lp_scene.c
index 774a1fecd71..70d5847d8ec 100644
--- a/src/gallium/drivers/llvmpipe/lp_scene.c
+++ b/src/gallium/drivers/llvmpipe/lp_scene.c
@@ -66,6 +66,28 @@ lp_scene_init(struct lp_scene *scene)
 }
 
 
+/**
+ * Check if the scene's bins are all empty.
+ * For debugging purposes.
+ */
+boolean
+lp_scene_is_empty(struct lp_scene *scene )
+{
+   unsigned x, y;
+
+   for (y = 0; y < TILES_Y; y++) {
+      for (x = 0; x < TILES_X; x++) {
+         const struct cmd_bin *bin = lp_scene_get_bin(scene, x, y);
+         const struct cmd_block_list *list = &bin->commands;
+         if (list->head != list->tail || list->head->count > 0) {
+            return FALSE;
+         }
+      }
+   }
+   return TRUE;
+}
+
+
 /**
  * Set scene to empty state.
  */
diff --git a/src/gallium/drivers/llvmpipe/lp_scene.h b/src/gallium/drivers/llvmpipe/lp_scene.h
index 796fc516ccc..72557277851 100644
--- a/src/gallium/drivers/llvmpipe/lp_scene.h
+++ b/src/gallium/drivers/llvmpipe/lp_scene.h
@@ -133,6 +133,8 @@ void lp_scene_destroy(struct lp_scene *scene);
 
 void lp_scene_init(struct lp_scene *scene);
 
+boolean lp_scene_is_empty(struct lp_scene *scene );
+
 void lp_scene_reset(struct lp_scene *scene );
 
 void lp_scene_free_bin_data(struct lp_scene *scene);
-- 
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