/* * object_heap.h - Management of VA-API resources * * vdpau-video (C) 2009-2010 Splitted-Desktop Systems * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #ifndef VA_OBJECT_HEAP_H #define VA_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; 00030 struct object_base { int id; int next_free; }; 00035 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) attribute_hidden; /* * Allocates an object * Returns the object ID on success, returns -1 on error */ int object_heap_allocate(object_heap_p heap) attribute_hidden; /* * 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) attribute_hidden; /* * 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) attribute_hidden; /* * 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) attribute_hidden; /* * Frees an object */ void object_heap_free(object_heap_p heap, object_base_p obj) attribute_hidden; /* * Destroys a heap, the heap must be empty. */ void object_heap_destroy(object_heap_p heap) attribute_hidden; #endif /* VA_OBJECT_HEAP_H */

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