/******************************************************************************

 *

 * Copyright (C) 2022 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

*  isvce_cabac_utils.h

*

* @brief

*  Contains function declarations for function declared in

*  isvce_svc_cabac_utils.c

*

* @author

*  ittiam

*

* @remarks

*  None

*

*******************************************************************************

*/

#ifndef _ISVCE_CABAC_UTILS_H_

#define _ISVCE_CABAC_UTILS_H_

#include "ih264_typedefs.h"

#include "isvc_macros.h"

#include "isvc_defs.h"

#include "isvc_cabac_tables.h"

#include "isvce_cabac_structs.h"

#include "isvce_cabac.h"

static FORCEINLINE void isvce_cabac_enc_base_mode_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,

                                                       UWORD8 u1_base_mode_flag)

{

    UWORD8 u1_ctx_inc;

    UWORD8 u1_a, u1_b;

    const UWORD32 u4_ctxidx_offset = BASE_MODE_FLAG;

    u1_a = !ps_cabac_ctxt->ps_left_ctxt_mb_info->u1_base_mode_flag;

    u1_b = !ps_cabac_ctxt->ps_top_ctxt_mb_info->u1_base_mode_flag;

    u1_ctx_inc = u1_a + u1_b;

    isvce_cabac_encode_bin(ps_cabac_ctxt, u1_base_mode_flag,

                           ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset + u1_ctx_inc);

}

static FORCEINLINE void isvce_cabac_enc_residual_prediction_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,

                                                                 UWORD8 u1_base_mode_flag,

                                                                 UWORD8 u1_residual_prediction_flag)

{

    const UWORD32 u4_ctxidx_offset = RESIDUAL_PREDICTION_FLAG;

    UWORD8 u1_ctx_inc = !u1_base_mode_flag;

    isvce_cabac_encode_bin(ps_cabac_ctxt, u1_residual_prediction_flag,

                           ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset + u1_ctx_inc);

}

static FORCEINLINE void isvce_cabac_enc_motion_prediction_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,

                                                               UWORD8 u1_motion_prediction_flag,

                                                               UWORD8 u1_is_l0_mvp)

{

    const UWORD32 u4_ctxidx_offset =

        u1_is_l0_mvp ? MOTION_PREDICTION_FLAG_L0 : MOTION_PREDICTION_FLAG_L1;

    isvce_cabac_encode_bin(ps_cabac_ctxt, u1_motion_prediction_flag,

                           ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset);

}

#endif