Sync latest fd.o libva:master

Signed-off-by: Austin Yuan <shengquan.yuan@intel.com>

1 files changed, 89 insertions, 0 deletions

diff --git a/object_heap.h b/object_heap.h
new file mode 100644
index 0000000..154fddb
--- /dev/null
+++ b/object_heap.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2007 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _OBJECT_HEAP_H_
+#define _OBJECT_HEAP_H_
+
+#define OBJECT_HEAP_OFFSET_MASK		0x7F000000
+#define OBJECT_HEAP_ID_MASK			0x00FFFFFF
+
+typedef struct object_base *object_base_p;
+typedef struct object_heap *object_heap_p;
+
+struct object_base {
+    int id;
+    int next_free;
+};
+
+struct object_heap {
+    int	object_size;
+    int id_offset;
+    void *heap_index;
+    int next_free;
+    int heap_size;
+    int heap_increment;
+};
+
+typedef int object_heap_iterator;
+
+/*
+ * Return 0 on success, -1 on error
+ */
+int object_heap_init( object_heap_p heap, int object_size, int id_offset);
+
+/*
+ * Allocates an object
+ * Returns the object ID on success, returns -1 on error
+ */
+int object_heap_allocate( object_heap_p heap );
+
+/*
+ * Lookup an allocated object by object ID
+ * Returns a pointer to the object on success, returns NULL on error
+ */
+object_base_p object_heap_lookup( object_heap_p heap, int id );
+
+/*
+ * Iterate over all objects in the heap.
+ * Returns a pointer to the first object on the heap, returns NULL if heap is empty.
+ */
+object_base_p object_heap_first( object_heap_p heap, object_heap_iterator *iter );
+
+/*
+ * Iterate over all objects in the heap.
+ * Returns a pointer to the next object on the heap, returns NULL if heap is empty.
+ */
+object_base_p object_heap_next( object_heap_p heap, object_heap_iterator *iter );
+
+/*
+ * Frees an object
+ */
+void object_heap_free( object_heap_p heap, object_base_p obj );
+
+/*
+ * Destroys a heap, the heap must be empty.
+ */
+void object_heap_destroy( object_heap_p heap );
+
+#endif /* _OBJECT_HEAP_H_ */