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

 * Copyright (C) 2013-2020 MulticoreWare, Inc

 *

 * Authors: Steve Borho <steve@borho.org>

 *          Mandar Gurav <mandar@multicorewareinc.com>

 *          Deepthi Devaki Akkoorath <deepthidevaki@multicorewareinc.com>

 *          Mahesh Pittala <mahesh@multicorewareinc.com>

 *          Rajesh Paulraj <rajesh@multicorewareinc.com>

 *          Praveen Kumar Tiwari <praveen@multicorewareinc.com>

 *          Min Chen <chenm003@163.com>

 *          Hongbin Liu<liuhongbin1@huawei.com>

 *          Yimeng Su <yimeng.su@huawei.com>

 *

 * 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  02111, USA.

 *

 * This program is also available under a commercial proprietary license.

 * For more information, contact us at license @ x265.com.

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

#ifndef X265_PRIMITIVES_H

#define X265_PRIMITIVES_H

#include "common.h"

#include "cpu.h"

namespace X265_NS {

// x265 private namespace

enum LumaPU

{

    // Square (the first 5 PUs match the block sizes)

    LUMA_4x4,   LUMA_8x8,   LUMA_16x16, LUMA_32x32, LUMA_64x64,

    // Rectangular

    LUMA_8x4,   LUMA_4x8,

    LUMA_16x8,  LUMA_8x16,

    LUMA_32x16, LUMA_16x32,

    LUMA_64x32, LUMA_32x64,

    // Asymmetrical (0.75, 0.25)

    LUMA_16x12, LUMA_12x16, LUMA_16x4,  LUMA_4x16,

    LUMA_32x24, LUMA_24x32, LUMA_32x8,  LUMA_8x32,

    LUMA_64x48, LUMA_48x64, LUMA_64x16, LUMA_16x64,

    NUM_PU_SIZES

};

enum LumaCU // can be indexed using log2n(width)-2

{

    BLOCK_4x4,

    BLOCK_8x8,

    BLOCK_16x16,

    BLOCK_32x32,

    BLOCK_64x64,

    NUM_CU_SIZES

};

enum AlignPrimitive

{

    NONALIGNED,

    ALIGNED,

    NUM_ALIGNMENT_TYPES

};

enum { NUM_TR_SIZE = 4 }; // TU are 4x4, 8x8, 16x16, and 32x32

/* Chroma partition sizes. These enums are only a convenience for indexing into

 * the chroma primitive arrays when instantiating macros or templates. The

 * chroma function tables should always be indexed by a LumaPU enum when used. */

enum ChromaPU420

{

    CHROMA_420_2x2,   CHROMA_420_4x4,   CHROMA_420_8x8,  CHROMA_420_16x16, CHROMA_420_32x32,

    CHROMA_420_4x2,   CHROMA_420_2x4,

    CHROMA_420_8x4,   CHROMA_420_4x8,

    CHROMA_420_16x8,  CHROMA_420_8x16,

    CHROMA_420_32x16, CHROMA_420_16x32,

    CHROMA_420_8x6,   CHROMA_420_6x8,   CHROMA_420_8x2,  CHROMA_420_2x8,

    CHROMA_420_16x12, CHROMA_420_12x16, CHROMA_420_16x4, CHROMA_420_4x16,

    CHROMA_420_32x24, CHROMA_420_24x32, CHROMA_420_32x8, CHROMA_420_8x32,

};

enum ChromaCU420

{

    BLOCK_420_2x2,

    BLOCK_420_4x4,

    BLOCK_420_8x8,

    BLOCK_420_16x16,

    BLOCK_420_32x32

};

enum ChromaPU422

{

    CHROMA_422_2x4,   CHROMA_422_4x8,   CHROMA_422_8x16,  CHROMA_422_16x32, CHROMA_422_32x64,

    CHROMA_422_4x4,   CHROMA_422_2x8,

    CHROMA_422_8x8,   CHROMA_422_4x16,

    CHROMA_422_16x16, CHROMA_422_8x32,

    CHROMA_422_32x32, CHROMA_422_16x64,

    CHROMA_422_8x12,  CHROMA_422_6x16,  CHROMA_422_8x4,   CHROMA_422_2x16,

    CHROMA_422_16x24, CHROMA_422_12x32, CHROMA_422_16x8,  CHROMA_422_4x32,

    CHROMA_422_32x48, CHROMA_422_24x64, CHROMA_422_32x16, CHROMA_422_8x64,

};

enum ChromaCU422

{

    BLOCK_422_2x4,

    BLOCK_422_4x8,

    BLOCK_422_8x16,

    BLOCK_422_16x32,

    BLOCK_422_32x64

};

enum IntegralSize

{

    INTEGRAL_4,

    INTEGRAL_8,

    INTEGRAL_12,

    INTEGRAL_16,

    INTEGRAL_24,

    INTEGRAL_32,

    NUM_INTEGRAL_SIZE

};

typedef int  (*pixelcmp_t)(const pixel* fenc, intptr_t fencstride, const pixel* fref, intptr_t frefstride); // fenc is aligned

typedef int  (*pixelcmp_ss_t)(const int16_t* fenc, intptr_t fencstride, const int16_t* fref, intptr_t frefstride);

typedef sse_t (*pixel_sse_t)(const pixel* fenc, intptr_t fencstride, const pixel* fref, intptr_t frefstride); // fenc is aligned

typedef sse_t (*pixel_sse_ss_t)(const int16_t* fenc, intptr_t fencstride, const int16_t* fref, intptr_t frefstride);

typedef sse_t (*pixel_ssd_s_t)(const int16_t* fenc, intptr_t fencstride);

typedef int(*pixelcmp_ads_t)(int encDC[], uint32_t *sums, int delta, uint16_t *costMvX, int16_t *mvs, int width, int thresh);

typedef void (*pixelcmp_x4_t)(const pixel* fenc, const pixel* fref0, const pixel* fref1, const pixel* fref2, const pixel* fref3, intptr_t frefstride, int32_t* res);

typedef void (*pixelcmp_x3_t)(const pixel* fenc, const pixel* fref0, const pixel* fref1, const pixel* fref2, intptr_t frefstride, int32_t* res);

typedef void (*blockfill_s_t)(int16_t* dst, intptr_t dstride, int16_t val);

typedef void (*intra_pred_t)(pixel* dst, intptr_t dstStride, const pixel *srcPix, int dirMode, int bFilter);

typedef void (*intra_allangs_t)(pixel *dst, pixel *refPix, pixel *filtPix, int bLuma);

typedef void (*intra_filter_t)(const pixel* references, pixel* filtered);

typedef void (*cpy2Dto1D_shl_t)(int16_t* dst, const int16_t* src, intptr_t srcStride, int shift);

typedef void (*cpy2Dto1D_shr_t)(int16_t* dst, const int16_t* src, intptr_t srcStride, int shift);

typedef void (*cpy1Dto2D_shl_t)(int16_t* dst, const int16_t* src, intptr_t dstStride, int shift);

typedef void (*cpy1Dto2D_shr_t)(int16_t* dst, const int16_t* src, intptr_t dstStride, int shift);

typedef uint32_t (*copy_cnt_t)(int16_t* coeff, const int16_t* residual, intptr_t resiStride);

typedef void (*dct_t)(const int16_t* src, int16_t* dst, intptr_t srcStride);

typedef void (*idct_t)(const int16_t* src, int16_t* dst, intptr_t dstStride);

typedef void (*denoiseDct_t)(int16_t* dctCoef, uint32_t* resSum, const uint16_t* offset, int numCoeff);

typedef void (*calcresidual_t)(const pixel* fenc, const pixel* pred, int16_t* residual, intptr_t stride);

typedef void (*transpose_t)(pixel* dst, const pixel* src, intptr_t stride);

typedef uint32_t (*quant_t)(const int16_t* coef, const int32_t* quantCoeff, int32_t* deltaU, int16_t* qCoef, int qBits, int add, int numCoeff);

typedef uint32_t (*nquant_t)(const int16_t* coef, const int32_t* quantCoeff, int16_t* qCoef, int qBits, int add, int numCoeff);

typedef void (*dequant_scaling_t)(const int16_t* src, const int32_t* dequantCoef, int16_t* dst, int num, int mcqp_miper, int shift);

typedef void (*dequant_normal_t)(const int16_t* quantCoef, int16_t* coef, int num, int scale, int shift);

typedef int(*count_nonzero_t)(const int16_t* quantCoeff);

typedef void (*weightp_pp_t)(const pixel* src, pixel* dst, intptr_t stride, int width, int height, int w0, int round, int shift, int offset);

typedef void (*weightp_sp_t)(const int16_t* src, pixel* dst, intptr_t srcStride, intptr_t dstStride, int width, int height, int w0, int round, int shift, int offset);

typedef void (*scale1D_t)(pixel* dst, const pixel* src);

typedef void (*scale2D_t)(pixel* dst, const pixel* src, intptr_t stride);

typedef void (*downscale_t)(const pixel* src0, pixel* dstf, pixel* dsth, pixel* dstv, pixel* dstc,

                            intptr_t src_stride, intptr_t dst_stride, int width, int height);

typedef void (*extendCURowBorder_t)(pixel* txt, intptr_t stride, int width, int height, int marginX);

typedef void (*ssim_4x4x2_core_t)(const pixel* pix1, intptr_t stride1, const pixel* pix2, intptr_t stride2, int sums[2][4]);

typedef float (*ssim_end4_t)(int sum0[5][4], int sum1[5][4], int width);

typedef uint64_t (*var_t)(const pixel* pix, intptr_t stride);

typedef void (*plane_copy_deinterleave_t)(pixel* dstu, intptr_t dstuStride, pixel* dstv, intptr_t dstvStride, const pixel* src, intptr_t srcStride, int w, int h);

typedef void (*filter_pp_t) (const pixel* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int coeffIdx);

typedef void (*filter_hps_t) (const pixel* src, intptr_t srcStride, int16_t* dst, intptr_t dstStride, int coeffIdx, int isRowExt);

typedef void (*filter_ps_t) (const pixel* src, intptr_t srcStride, int16_t* dst, intptr_t dstStride, int coeffIdx);

typedef void (*filter_sp_t) (const int16_t* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int coeffIdx);

typedef void (*filter_ss_t) (const int16_t* src, intptr_t srcStride, int16_t* dst, intptr_t dstStride, int coeffIdx);

typedef void (*filter_hv_pp_t) (const pixel* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int idxX, int idxY);

typedef void (*filter_p2s_t)(const pixel* src, intptr_t srcStride, int16_t* dst, intptr_t dstStride);

typedef void (*copy_pp_t)(pixel* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride); // dst is aligned

typedef void (*copy_sp_t)(pixel* dst, intptr_t dstStride, const int16_t* src, intptr_t srcStride);

typedef void (*copy_ps_t)(int16_t* dst, intptr_t dstStride, const pixel* src, intptr_t srcStride);

typedef void (*copy_ss_t)(int16_t* dst, intptr_t dstStride, const int16_t* src, intptr_t srcStride);

typedef void (*pixel_sub_ps_t)(int16_t* dst, intptr_t dstride, const pixel* src0, const pixel* src1, intptr_t sstride0, intptr_t sstride1);

typedef void (*pixel_add_ps_t)(pixel* a, intptr_t dstride, const pixel* b0, const int16_t* b1, intptr_t sstride0, intptr_t sstride1);

typedef void (*pixelavg_pp_t)(pixel* dst, intptr_t dstride, const pixel* src0, intptr_t sstride0, const pixel* src1, intptr_t sstride1, int weight);

typedef void (*addAvg_t)(const int16_t* src0, const int16_t* src1, pixel* dst, intptr_t src0Stride, intptr_t src1Stride, intptr_t dstStride);

typedef void (*saoCuOrgE0_t)(pixel* rec, int8_t* offsetEo, int width, int8_t* signLeft, intptr_t stride);

typedef void (*saoCuOrgE1_t)(pixel* rec, int8_t* upBuff1, int8_t* offsetEo, intptr_t stride, int width);

typedef void (*saoCuOrgE2_t)(pixel* rec, int8_t* pBufft, int8_t* pBuff1, int8_t* offsetEo, int lcuWidth, intptr_t stride);

typedef void (*saoCuOrgE3_t)(pixel* rec, int8_t* upBuff1, int8_t* m_offsetEo, intptr_t stride, int startX, int endX);

typedef void (*saoCuOrgB0_t)(pixel* rec, const int8_t* offsetBo, int ctuWidth, int ctuHeight, intptr_t stride);

typedef void (*saoCuStatsBO_t)(const int16_t *diff, const pixel *rec, intptr_t stride, int endX, int endY, int32_t *stats, int32_t *count);

typedef void (*saoCuStatsE0_t)(const int16_t *diff, const pixel *rec, intptr_t stride, int endX, int endY, int32_t *stats, int32_t *count);

typedef void (*saoCuStatsE1_t)(const int16_t *diff, const pixel *rec, intptr_t stride, int8_t *upBuff1, int endX, int endY, int32_t *stats, int32_t *count);

typedef void (*saoCuStatsE2_t)(const int16_t *diff, const pixel *rec, intptr_t stride, int8_t *upBuff1, int8_t *upBuff, int endX, int endY, int32_t *stats, int32_t *count);

typedef void (*saoCuStatsE3_t)(const int16_t *diff, const pixel *rec, intptr_t stride, int8_t *upBuff1, int endX, int endY, int32_t *stats, int32_t *count);

typedef void (*sign_t)(int8_t *dst, const pixel *src1, const pixel *src2, const int endX);

typedef void (*planecopy_cp_t) (const uint8_t* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int width, int height, int shift);

typedef void (*planecopy_sp_t) (const uint16_t* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int width, int height, int shift, uint16_t mask);

typedef void (*planecopy_pp_t) (const pixel* src, intptr_t srcStride, pixel* dst, intptr_t dstStride, int width, int height, int shift);

typedef pixel (*planeClipAndMax_t)(pixel *src, intptr_t stride, int width, int height, uint64_t *outsum, const pixel minPix, const pixel maxPix);

typedef void (*cutree_propagate_cost) (int* dst, const uint16_t* propagateIn, const int32_t* intraCosts, const uint16_t* interCosts, const int32_t* invQscales, const double* fpsFactor, int len);

typedef void (*cutree_fix8_unpack)(double *dst, uint16_t *src, int count);

typedef void (*cutree_fix8_pack)(uint16_t *dst, double *src, int count);

typedef int (*scanPosLast_t)(const uint16_t *scan, const coeff_t *coeff, uint16_t *coeffSign, uint16_t *coeffFlag, uint8_t *coeffNum, int numSig, const uint16_t* scanCG4x4, const int trSize);

typedef uint32_t (*findPosFirstLast_t)(const int16_t *dstCoeff, const intptr_t trSize, const uint16_t scanTbl[16]);

typedef uint32_t (*costCoeffNxN_t)(const uint16_t *scan, const coeff_t *coeff, intptr_t trSize, uint16_t *absCoeff, const uint8_t *tabSigCtx, uint32_t scanFlagMask, uint8_t *baseCtx, int offset, int scanPosSigOff, int subPosBase);

typedef uint32_t (*costCoeffRemain_t)(uint16_t *absCoeff, int numNonZero, int idx);

typedef uint32_t (*costC1C2Flag_t)(uint16_t *absCoeff, intptr_t numC1Flag, uint8_t *baseCtxMod, intptr_t ctxOffset);

typedef void (*pelFilterLumaStrong_t)(pixel* src, intptr_t srcStep, intptr_t offset, int32_t tcP, int32_t tcQ);

typedef void (*pelFilterChroma_t)(pixel* src, intptr_t srcStep, intptr_t offset, int32_t tc, int32_t maskP, int32_t maskQ);

typedef void (*integralv_t)(uint32_t *sum, intptr_t stride);

typedef void (*integralh_t)(uint32_t *sum, pixel *pix, intptr_t stride);

typedef void(*nonPsyRdoQuant_t)(int16_t *m_resiDctCoeff, int64_t *costUncoded, int64_t *totalUncodedCost, int64_t *totalRdCost, uint32_t blkPos);

typedef void(*psyRdoQuant_t)(int16_t *m_resiDctCoeff, int16_t *m_fencDctCoeff, int64_t *costUncoded, int64_t *totalUncodedCost, int64_t *totalRdCost, int64_t *psyScale, uint32_t blkPos);

typedef void(*psyRdoQuant_t1)(int16_t *m_resiDctCoeff, int64_t *costUncoded, int64_t *totalUncodedCost, int64_t *totalRdCost,uint32_t blkPos);

typedef void(*psyRdoQuant_t2)(int16_t *m_resiDctCoeff, int16_t *m_fencDctCoeff, int64_t *costUncoded, int64_t *totalUncodedCost, int64_t *totalRdCost, int64_t *psyScale, uint32_t blkPos);

typedef void(*ssimDistortion_t)(const pixel *fenc, uint32_t fStride, const pixel *recon,  intptr_t rstride, uint64_t *ssBlock, int shift, uint64_t *ac_k);

typedef void(*normFactor_t)(const pixel *src, uint32_t blockSize, int shift, uint64_t *z_k);

/* Function pointers to optimized encoder primitives. Each pointer can reference

 * either an assembly routine, a SIMD intrinsic primitive, or a C function */

struct EncoderPrimitives

{

    /* These primitives can be used for any sized prediction unit (from 4x4 to

     * 64x64, square, rectangular - 50/50 or asymmetrical - 25/75) and are

     * generally restricted to motion estimation and motion compensation (inter

     * prediction. Note that the 4x4 PU can only be used for intra, which is

     * really a 4x4 TU, so at most copy_pp and satd will use 4x4. This array is

     * indexed by LumaPU values, which can be retrieved by partitionFromSizes() */

    struct PU

    {

        pixelcmp_t     sad;         // Sum of Absolute Differences

        pixelcmp_x3_t  sad_x3;      // Sum of Absolute Differences, 3 mv offsets at once

        pixelcmp_x4_t  sad_x4;      // Sum of Absolute Differences, 4 mv offsets at once

        pixelcmp_ads_t ads;         // Absolute Differences sum

        pixelcmp_t     satd;        // Sum of Absolute Transformed Differences (4x4 Hadamard)

        filter_pp_t    luma_hpp;    // 8-tap luma motion compensation interpolation filters

        filter_hps_t   luma_hps;

        filter_pp_t    luma_vpp;

        filter_ps_t    luma_vps;

        filter_sp_t    luma_vsp;

        filter_ss_t    luma_vss;

        filter_hv_pp_t luma_hvpp;   // combines hps + vsp

        pixelavg_pp_t  pixelavg_pp[NUM_ALIGNMENT_TYPES]; // quick bidir using pixels (borrowed from x264)

        addAvg_t       addAvg[NUM_ALIGNMENT_TYPES];      // bidir motion compensation, uses 16bit values

        copy_pp_t      copy_pp;

        filter_p2s_t   convert_p2s[NUM_ALIGNMENT_TYPES];

    }

    pu[NUM_PU_SIZES];

    /* These primitives can be used for square TU blocks (4x4 to 32x32) or

     * possibly square CU blocks (8x8 to 64x64). Some primitives are used for

     * both CU and TU so we merge them into one array that is indexed uniformly.

     * This keeps the index logic uniform and simple and improves cache

     * coherency. CU only primitives will leave 4x4 pointers NULL while TU only

     * primitives will leave 64x64 pointers NULL.  Indexed by LumaCU */

    struct CU

    {

        dct_t           dct;    // active dct transformation

        idct_t          idct;   // active idct transformation

        dct_t           standard_dct;   // original dct function, used by lowpass_dct

        dct_t           lowpass_dct;    // lowpass dct approximation

        calcresidual_t  calcresidual[NUM_ALIGNMENT_TYPES];

        pixel_sub_ps_t  sub_ps;

        pixel_add_ps_t  add_ps[NUM_ALIGNMENT_TYPES];

        blockfill_s_t   blockfill_s[NUM_ALIGNMENT_TYPES];   // block fill, for DC transforms

        copy_cnt_t      copy_cnt;      // copy coeff while counting non-zero

        count_nonzero_t count_nonzero;

        cpy2Dto1D_shl_t cpy2Dto1D_shl;

        cpy2Dto1D_shr_t cpy2Dto1D_shr;

        cpy1Dto2D_shl_t cpy1Dto2D_shl[NUM_ALIGNMENT_TYPES];

        cpy1Dto2D_shr_t cpy1Dto2D_shr;

        copy_sp_t       copy_sp;

        copy_ps_t       copy_ps;

        copy_ss_t       copy_ss;

        copy_pp_t       copy_pp;       // alias to pu[].copy_pp

        var_t           var;           // block internal variance

        pixel_sse_t     sse_pp;        // Sum of Square Error (pixel, pixel) fenc alignment not assumed

        pixel_sse_ss_t  sse_ss;        // Sum of Square Error (short, short) fenc alignment not assumed

        pixelcmp_t      psy_cost_pp;   // difference in AC energy between two pixel blocks

        pixel_ssd_s_t   ssd_s[NUM_ALIGNMENT_TYPES];         // Sum of Square Error (residual coeff to self)

        pixelcmp_t      sa8d;          // Sum of Transformed Differences (8x8 Hadamard), uses satd for 4x4 intra TU

        transpose_t     transpose;     // transpose pixel block; for use with intra all-angs

        intra_allangs_t intra_pred_allangs;

        intra_filter_t  intra_filter;

        intra_pred_t    intra_pred[NUM_INTRA_MODE];

        nonPsyRdoQuant_t nonPsyRdoQuant;

        psyRdoQuant_t    psyRdoQuant;

    psyRdoQuant_t1   psyRdoQuant_1p;

    psyRdoQuant_t2   psyRdoQuant_2p;

        ssimDistortion_t ssimDist;

        normFactor_t     normFact;

    }

    cu[NUM_CU_SIZES];

    /* These remaining primitives work on either fixed block sizes or take

     * block dimensions as arguments and thus do not belong in either the PU or

     * the CU arrays */

    dct_t                 dst4x4;

    idct_t                idst4x4;

    quant_t               quant;

    nquant_t              nquant;

    dequant_scaling_t     dequant_scaling;

    dequant_normal_t      dequant_normal;

    denoiseDct_t          denoiseDct;

    scale1D_t             scale1D_128to64[NUM_ALIGNMENT_TYPES];

    scale2D_t             scale2D_64to32;

    ssim_4x4x2_core_t     ssim_4x4x2_core;

    ssim_end4_t           ssim_end_4;

    sign_t                sign;

    saoCuOrgE0_t          saoCuOrgE0;

    /* To avoid the overhead in avx2 optimization in handling width=16, SAO_E0_1 is split

     * into two parts: saoCuOrgE1, saoCuOrgE1_2Rows */

    saoCuOrgE1_t          saoCuOrgE1, saoCuOrgE1_2Rows;

    // saoCuOrgE2[0] is used for width<=16 and saoCuOrgE2[1] is used for width > 16.

    saoCuOrgE2_t          saoCuOrgE2[2];

    /* In avx2 optimization, two rows cannot be handled simultaneously since it requires 

     * a pixel from the previous row. So, saoCuOrgE3[0] is used for width<=16 and 

     * saoCuOrgE3[1] is used for width > 16. */

    saoCuOrgE3_t          saoCuOrgE3[2];

    saoCuOrgB0_t          saoCuOrgB0;

    saoCuStatsBO_t        saoCuStatsBO;

    saoCuStatsE0_t        saoCuStatsE0;

    saoCuStatsE1_t        saoCuStatsE1;

    saoCuStatsE2_t        saoCuStatsE2;

    saoCuStatsE3_t        saoCuStatsE3;

    downscale_t           frameInitLowres;

    downscale_t           frameInitLowerRes;

    cutree_propagate_cost propagateCost;

    cutree_fix8_unpack    fix8Unpack;

    cutree_fix8_pack      fix8Pack;

    extendCURowBorder_t   extendRowBorder;

    planecopy_cp_t        planecopy_cp;

    planecopy_sp_t        planecopy_sp;

    planecopy_sp_t        planecopy_sp_shl;

    planecopy_pp_t        planecopy_pp_shr;

    planeClipAndMax_t     planeClipAndMax;

    weightp_sp_t          weight_sp;

    weightp_pp_t          weight_pp;

    scanPosLast_t         scanPosLast;

    findPosFirstLast_t    findPosFirstLast;

    costCoeffNxN_t        costCoeffNxN;

    costCoeffRemain_t     costCoeffRemain;

    costC1C2Flag_t        costC1C2Flag;

    pelFilterLumaStrong_t pelFilterLumaStrong[2]; // EDGE_VER = 0, EDGE_HOR = 1

    pelFilterChroma_t     pelFilterChroma[2];     // EDGE_VER = 0, EDGE_HOR = 1

    integralv_t            integral_initv[NUM_INTEGRAL_SIZE];

    integralh_t            integral_inith[NUM_INTEGRAL_SIZE];

    /* There is one set of chroma primitives per color space. An encoder will

     * have just a single color space and thus it will only ever use one entry

     * in this array. However we always fill all entries in the array in case

     * multiple encoders with different color spaces share the primitive table

     * in a single process. Note that 4:2:0 PU and CU are 1/2 width and 1/2

     * height of their luma counterparts. 4:2:2 PU and CU are 1/2 width and full

     * height, while 4:4:4 directly uses the luma block sizes and shares luma

     * primitives for all cases except for the interpolation filters. 4:4:4

     * interpolation filters have luma partition sizes but are only 4-tap. */

    struct Chroma

    {

        /* Chroma prediction unit primitives. Indexed by LumaPU */

        struct PUChroma

        {

            pixelcmp_t   satd;      // if chroma PU is not multiple of 4x4, will be NULL

            filter_pp_t  filter_vpp;

            filter_ps_t  filter_vps;

            filter_sp_t  filter_vsp;

            filter_ss_t  filter_vss;

            filter_pp_t  filter_hpp;

            filter_hps_t filter_hps;

            addAvg_t     addAvg[NUM_ALIGNMENT_TYPES];

            copy_pp_t    copy_pp;

            filter_p2s_t p2s[NUM_ALIGNMENT_TYPES];

        }

        pu[NUM_PU_SIZES];

        /* Chroma transform and coding unit primitives. Indexed by LumaCU */

        struct CUChroma

        {

            pixelcmp_t     sa8d;    // if chroma CU is not multiple of 8x8, will use satd

            pixel_sse_t    sse_pp;

            pixel_sub_ps_t sub_ps;

            pixel_add_ps_t add_ps[NUM_ALIGNMENT_TYPES];

            copy_ps_t      copy_ps;

            copy_sp_t      copy_sp;

            copy_ss_t      copy_ss;

            copy_pp_t      copy_pp;

        }

        cu[NUM_CU_SIZES];

    }

    chroma[X265_CSP_COUNT];

};

/* This copy of the table is what gets used by the encoder */

extern EncoderPrimitives primitives;

/* Returns a LumaPU enum for the given size, always expected to return a valid enum */

inline int partitionFromSizes(int width, int height)

{

    X265_CHECK(((width | height) & ~(4 | 8 | 16 | 32 | 64)) == 0, "Invalid block width/height\n");

    extern const uint8_t lumaPartitionMapTable[];

    int w = (width >> 2) - 1;

    int h = (height >> 2) - 1;

    int part = (int)lumaPartitionMapTable[(w << 4) + h];

    X265_CHECK(part != 255, "Invalid block width %d height %d\n", width, height);

    return part;

}

/* Computes the size of the LumaPU for a given LumaPU enum */

inline void sizesFromPartition(int part, int *width, int *height)

{

    X265_CHECK(part >= 0 && part <= 24, "Invalid part %d \n", part);

    extern const uint8_t lumaPartitionMapTable[];

    int index = 0;

    for (int i = 0; i < 256;i++)

        if (part == lumaPartitionMapTable[i])

        {

            index = i;

            break;

        }

    *width = 4 * ((index >> 4) + 1);

    *height = 4 * ((index % 16) + 1);

}

inline int partitionFromLog2Size(int log2Size)

{

    X265_CHECK(2 <= log2Size && log2Size <= 6, "Invalid block size\n");

    return log2Size - 2;

}

void setupCPrimitives(EncoderPrimitives &p);

void setupInstrinsicPrimitives(EncoderPrimitives &p, int cpuMask);

void setupAssemblyPrimitives(EncoderPrimitives &p, int cpuMask);

void setupAliasPrimitives(EncoderPrimitives &p);

#if X265_ARCH_ARM64

void setupAliasCPrimitives(EncoderPrimitives &cp, EncoderPrimitives &asmp, int cpuMask);

#endif

#if HAVE_ALTIVEC

void setupPixelPrimitives_altivec(EncoderPrimitives &p);

void setupDCTPrimitives_altivec(EncoderPrimitives &p);

void setupFilterPrimitives_altivec(EncoderPrimitives &p);

void setupIntraPrimitives_altivec(EncoderPrimitives &p);

#endif

}

#if !EXPORT_C_API

extern const int   PFX(max_bit_depth);

extern const char* PFX(version_str);

extern const char* PFX(build_info_str);

#endif

#if ENABLE_ASSEMBLY && X265_ARCH_ARM64

extern "C" {

#include "aarch64/pixel-util.h"

}

#endif

#endif // ifndef X265_PRIMITIVES_H