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/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/**
*******************************************************************************
* @file
* ih264_list.h
*
* @brief
* Contains functions for buf queue
*
* @author
* ittiam
*
* @remarks
* none
*
*******************************************************************************
*/
#ifndef _IH264_LIST_H_
#define _IH264_LIST_H_
/*****************************************************************************/
/* Structure Definitions */
/*****************************************************************************/
typedef struct
{
/** Pointer to buffer base which contains the bufs */
void *pv_buf_base;
/** Mutex used to keep the functions thread-safe */
void *pv_mutex;
/** Current write index */
volatile WORD32 i4_buf_wr_idx;
/** Current read index */
volatile WORD32 i4_buf_rd_idx;
/** Maximum index */
WORD32 i4_buf_max_idx;
/** Log2(buf_max_idx) -
* To ensure number of entries is power of two
* This makes it easier to wrap around by using AND with buf_max_idx - 1
* */
WORD32 i4_log2_buf_max_idx;
/** Flag to indicate list has to be terminated */
WORD32 i4_terminate;
/** Size of each entry */
WORD32 i4_entry_size;
/** If the list is to be used frequently send this as zero, else send a large value
* to ensure cores are not loaded unnecessarily.
* For eg: For picture level queues this can be a large value like 100us
* but for jobq this will be zero.
*/
WORD32 i4_yield_interval_us;
}list_t;
/*****************************************************************************/
/* Function Declarations */
/*****************************************************************************/
WORD32 ih264_list_size(WORD32 num_entries, WORD32 entry_size);
void* ih264_list_init(void *pv_buf, WORD32 buf_size, WORD32 num_entries,
WORD32 entry_size, WORD32 yeild_interval_us);
IH264_ERROR_T ih264_list_free(list_t *ps_list);
IH264_ERROR_T ih264_list_reset(list_t *ps_list);
IH264_ERROR_T ih264_list_deinit(list_t *ps_list);
IH264_ERROR_T ih264_list_terminate(list_t *ps_list);
IH264_ERROR_T ih264_list_queue(list_t *ps_list, void *pv_buf, WORD32 blocking);
IH264_ERROR_T ih264_list_dequeue(list_t *ps_list, void *pv_buf,
WORD32 blocking);
#endif /* _IH264_LIST_H_ */
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