[osal]: add mpp_allocator and os_allocator for mpp_buffer

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@130 6e48237b-75ef-9749-8fc9-41990f28c85a

osal/os_allocator.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2010 Rockchip Electronics S.LSI Co. LTD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __OS_ALLOCATOR_H__
+#define __OS_ALLOCATOR_H__
+
+#include "mpp_allocator.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int os_allocator_open(void **ctx);
+int os_allocator_alloc(void *ctx, MppBufferData *data, size_t alignment, size_t size);
+void os_allocator_free(void *ctx, MppBufferData *data);
+void os_allocator_close(void *ctx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*__OS_ALLOCATOR_H__*/
+
+