d3d: Allow to iterate over the handle table.

2 files changed, 31 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/util/u_handle_table.c b/src/gallium/auxiliary/util/u_handle_table.c
index fae4ac4039..0bfb9e1b4a 100644
--- a/src/gallium/auxiliary/util/u_handle_table.c
+++ b/src/gallium/auxiliary/util/u_handle_table.c
@@ -241,6 +241,28 @@ handle_table_remove(struct handle_table *ht,
 }
 
 
+unsigned
+handle_table_get_next_handle(struct handle_table *ht, 
+                             unsigned handle)
+{
+   unsigned index;
+   
+   for(index = handle; index < ht->size; ++index) {
+      if(!ht->objects[index])
+	 return index + 1;
+   }
+
+   return 0;
+}
+
+
+unsigned
+handle_table_get_first_handle(struct handle_table *ht)
+{
+   return handle_table_get_next_handle(ht, 0);
+}
+
+
 void
 handle_table_destroy(struct handle_table *ht)
 {
diff --git a/src/gallium/auxiliary/util/u_handle_table.h b/src/gallium/auxiliary/util/u_handle_table.h
index a2f1f604ad..d080135c9f 100644
--- a/src/gallium/auxiliary/util/u_handle_table.h
+++ b/src/gallium/auxiliary/util/u_handle_table.h
@@ -100,6 +100,15 @@ void
 handle_table_destroy(struct handle_table *ht);
 
 
+unsigned
+handle_table_get_first_handle(struct handle_table *ht);
+
+
+unsigned
+handle_table_get_next_handle(struct handle_table *ht,
+                             unsigned handle);
+
+
 #ifdef __cplusplus
 }
 #endif