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

 *

 * 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

*/

#include <stdio.h>

#include "iv_datatypedef.h"

#include "iv.h"

#include "icv.h"

#include "ideint.h"

#include "impeg2_buf_mgr.h"

#include "impeg2_disp_mgr.h"

#include "impeg2_defs.h"

#include "impeg2_platform_macros.h"

#include "impeg2_inter_pred.h"

#include "impeg2_idct.h"

#include "impeg2_globals.h"

#include "impeg2_format_conv.h"

#include "impeg2_macros.h"

#include "impeg2d.h"

#include "impeg2d_bitstream.h"

#include "impeg2d_structs.h"

#include "impeg2d_globals.h"

#include "impeg2d_mc.h"

#include "impeg2d_pic_proc.h"

#include "impeg2d_deinterlace.h"

typedef struct

{

    IVD_ARCH_T ivd_arch;

    ICV_ARCH_T icv_arch;

}arch_map_t;

static const arch_map_t gas_impeg2d_arch_mapping[] =

{

    {ARCH_ARM_NONEON,       ICV_ARM_NONEON},

    {ARCH_ARM_A9Q,          ICV_ARM_A9Q},

    {ARCH_ARM_A9A,          ICV_ARM_A9A},

    {ARCH_ARM_A9,           ICV_ARM_A9},

    {ARCH_ARM_A7,           ICV_ARM_A7},

    {ARCH_ARM_A5,           ICV_ARM_A5},

    {ARCH_ARM_A15,          ICV_ARM_A15},

    {ARCH_ARM_NEONINTR,     ICV_ARM_NEONINTR},

    {ARCH_ARMV8_GENERIC,    ICV_ARMV8_GENERIC},

    {ARCH_X86_GENERIC,      ICV_X86_GENERIC},

    {ARCH_X86_SSSE3,        ICV_X86_SSSE3},

    {ARCH_X86_SSE42,        ICV_X86_SSE42},

    {ARCH_X86_AVX2,         ICV_X86_AVX2},

    {ARCH_MIPS_GENERIC,     ICV_MIPS_GENERIC},

    {ARCH_MIPS_32,          ICV_MIPS_32},

    {ARCH_RISCV_GENERIC,    ICV_RISCV_GENERIC},

};

static void impeg2d_get_pic(icv_pic_t *ps_dst,

                            UWORD8 *pu1_buf_y,

                            UWORD8 *pu1_buf_u,

                            UWORD8 *pu1_buf_v,

                            WORD32 wd,

                            WORD32 ht,

                            WORD32 strd)

{

    ps_dst->ai4_wd[0] = wd;

    ps_dst->ai4_wd[1] = wd / 2;

    ps_dst->ai4_wd[2] = wd / 2;

    ps_dst->ai4_ht[0] = ht;

    ps_dst->ai4_ht[1] = ht / 2;

    ps_dst->ai4_ht[2] = ht / 2;

    ps_dst->ai4_strd[0] = strd;

    ps_dst->ai4_strd[1] = strd / 2;

    ps_dst->ai4_strd[2] = strd / 2;

    ps_dst->apu1_buf[0] = pu1_buf_y;

    ps_dst->apu1_buf[1] = pu1_buf_u;

    ps_dst->apu1_buf[2] = pu1_buf_v;

    ps_dst->e_color_fmt = ICV_YUV420P;

}

static void impeg2d_get_flds(icv_pic_t *ps_frm,

                             icv_pic_t *ps_top_fld,

                             icv_pic_t *ps_bot_fld)

{

    ps_top_fld->ai4_wd[0] = ps_frm->ai4_wd[0];

    ps_top_fld->ai4_wd[1] = ps_frm->ai4_wd[1];

    ps_top_fld->ai4_wd[2] = ps_frm->ai4_wd[2];

    ps_top_fld->ai4_ht[0] = ps_frm->ai4_ht[0] / 2;

    ps_top_fld->ai4_ht[1] = ps_frm->ai4_ht[1] / 2;

    ps_top_fld->ai4_ht[2] = ps_frm->ai4_ht[2] / 2;

    ps_top_fld->ai4_strd[0] = ps_frm->ai4_strd[0] * 2;

    ps_top_fld->ai4_strd[1] = ps_frm->ai4_strd[1] * 2;

    ps_top_fld->ai4_strd[2] = ps_frm->ai4_strd[2] * 2;

    ps_top_fld->e_color_fmt = ps_frm->e_color_fmt;

    /* Copy top field structure to bottom field, since properties of both fields are same */

    *ps_bot_fld = *ps_top_fld;

    /* Initialize the addresses for top field */

    ps_top_fld->apu1_buf[0] = ps_frm->apu1_buf[0];

    ps_top_fld->apu1_buf[1] = ps_frm->apu1_buf[1];

    ps_top_fld->apu1_buf[2] = ps_frm->apu1_buf[2];

    /* Initialize the addresses for bottom field */

    ps_bot_fld->apu1_buf[0] = ps_frm->apu1_buf[0] + ps_frm->ai4_strd[0];

    ps_bot_fld->apu1_buf[1] = ps_frm->apu1_buf[1] + ps_frm->ai4_strd[1];

    ps_bot_fld->apu1_buf[2] = ps_frm->apu1_buf[2] + ps_frm->ai4_strd[2];

    return;

}

static ICV_ARCH_T impeg2d_get_arch(IVD_ARCH_T e_arch)

{

    ICV_ARCH_T ret_arch;

    WORD32 num_entries, i;

    ret_arch = ICV_ARM_A9;

    num_entries = sizeof(gas_impeg2d_arch_mapping) / sizeof(gas_impeg2d_arch_mapping[0]);

    for(i = 0; i < num_entries; i++)

    {

        if(e_arch == gas_impeg2d_arch_mapping[i].ivd_arch)

        {

            ret_arch = gas_impeg2d_arch_mapping[i].icv_arch;

            break;

        }

    }

    return ret_arch;

}

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

*  Function Name   : impeg2d_deinterlace

*

*  Description     : Deinterlace current picture

*

*  Arguments       :

*  dec             : Decoder Context

*

*  Values Returned : 0 on success, -1 on error

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

WORD32 impeg2d_deint_ctxt_size(void)

{

    return ideint_ctxt_size();

}

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

*  Function Name   : impeg2d_deinterlace

*

*  Description     : Deinterlace current picture

*

*  Arguments       :

*  dec             : Decoder Context

*

*  Values Returned : 0 on success, -1 on error

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

WORD32 impeg2d_deinterlace(dec_state_t *ps_dec,

                           pic_buf_t *ps_src_pic,

                           iv_yuv_buf_t *ps_disp_frm_buf,

                           WORD32 start_row,

                           WORD32 num_rows)

{

    icv_pic_t as_inp_flds[3];

    IDEINT_ERROR_T ret;

    icv_pic_t s_src_frm;

    icv_pic_t s_dst_frm;

    UWORD8 *pu1_dst_y, *pu1_dst_u, *pu1_dst_v;

    ideint_params_t s_params;

    if((NULL == ps_src_pic) || (NULL == ps_src_pic->pu1_y) || (0 == num_rows))

        return -1;

    s_params.e_arch = impeg2d_get_arch(ps_dec->e_processor_arch);

    s_params.e_soc = ICV_SOC_GENERIC;

    s_params.e_mode = IDEINT_MODE_SPATIAL;

    s_params.i4_cur_fld_top = ps_dec->u2_top_field_first;

    s_params.i4_disable_weave = 0;

    s_params.pf_aligned_alloc = NULL;

    s_params.pf_aligned_free = NULL;

    impeg2d_get_pic(&s_src_frm, ps_src_pic->pu1_y, ps_src_pic->pu1_u,

                    ps_src_pic->pu1_v, ps_dec->u2_horizontal_size,

                    ps_dec->u2_vertical_size, ps_dec->u2_frame_width);

    impeg2d_get_flds(&s_src_frm, &as_inp_flds[1], &as_inp_flds[2]);

    if(ps_dec->ps_deint_pic)

    {

        icv_pic_t s_prv_frm;

        icv_pic_t s_fld;

        impeg2d_get_pic(&s_prv_frm, ps_dec->ps_deint_pic->pu1_y,

                        ps_dec->ps_deint_pic->pu1_u,

                        ps_dec->ps_deint_pic->pu1_v, ps_dec->u2_horizontal_size,

                        ps_dec->u2_vertical_size, ps_dec->u2_frame_width);

        impeg2d_get_flds(&s_prv_frm, &s_fld, &as_inp_flds[0]);

    }

    else

    {

        as_inp_flds[0].apu1_buf[0] = NULL;

        as_inp_flds[0].apu1_buf[1] = NULL;

        as_inp_flds[0].apu1_buf[2] = NULL;

    }

    pu1_dst_y = ps_disp_frm_buf->pv_y_buf;

    pu1_dst_u = ps_disp_frm_buf->pv_u_buf;

    pu1_dst_v = ps_disp_frm_buf->pv_v_buf;

    /* Use intermediate buffer as output to deinterlacer,

     * if color format is not 420P

     */

    if(IV_YUV_420P != ps_dec->i4_chromaFormat)

    {

        UWORD8 *pu1_buf_y;

        UWORD8 *pu1_buf_u;

        UWORD8 *pu1_buf_v;

        WORD32 wd = ALIGN16(ps_dec->u2_horizontal_size);

        WORD32 ht = ALIGN16(ps_dec->u2_vertical_size);

        pu1_buf_y = ps_dec->pu1_deint_fmt_buf;

        pu1_buf_u = pu1_buf_y + wd * ht;

        pu1_buf_v = pu1_buf_u + wd * ht / 4;

        pu1_dst_u = pu1_buf_u;

        pu1_dst_v = pu1_buf_v;

        if((ps_dec->i4_chromaFormat != IV_YUV_420SP_UV) &&

           (ps_dec->i4_chromaFormat != IV_YUV_420SP_VU))

        {

            pu1_dst_y = pu1_buf_y;

        }

    }

    impeg2d_get_pic(&s_dst_frm, pu1_dst_y, pu1_dst_u, pu1_dst_v,

                    ps_dec->u2_horizontal_size, ps_dec->u2_vertical_size,

                    ps_dec->u4_frm_buf_stride);

    ret = ideint_process(ps_dec->pv_deinterlacer_ctxt, &as_inp_flds[0],

                         &as_inp_flds[1], &as_inp_flds[2], &s_dst_frm,

                         &s_params, start_row, num_rows);

    if(IDEINT_ERROR_NONE != ret)

    {

        return -1;

    }

    /* Format convert deinterlacer output if required*/

    if(IV_YUV_420P != ps_dec->i4_chromaFormat)

    {

        pic_buf_t s_src_pic;

        s_src_pic = *ps_src_pic;

        s_src_pic.pu1_y = pu1_dst_y;

        s_src_pic.pu1_u = pu1_dst_u;

        s_src_pic.pu1_v = pu1_dst_v;

        impeg2d_format_convert(ps_dec,

                               &s_src_pic,

                               ps_disp_frm_buf,

                               start_row,

                               num_rows);

    }

    return 0;

}