#include "x14-gate.h"

#if defined(X14_4WAY)

#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "algo/blake/blake-hash-4way.h"
#include "algo/bmw/bmw-hash-4way.h"
#include "algo/groestl/aes_ni/hash-groestl.h"
#include "algo/skein/skein-hash-4way.h"
#include "algo/jh/jh-hash-4way.h"
#include "algo/keccak/keccak-hash-4way.h"
#include "algo/luffa/luffa-hash-2way.h"
#include "algo/cubehash/cubehash_sse2.h"
#include "algo/shavite/sph_shavite.h"
#include "algo/simd/simd-hash-2way.h"
#include "algo/echo/aes_ni/hash_api.h"
#include "algo/echo/sph_echo.h"
#include "algo/hamsi/hamsi-hash-4way.h"
#include "algo/fugue/sph_fugue.h"
#include "algo/shabal/shabal-hash-4way.h"

typedef struct {
    blake512_4way_context   blake;
    bmw512_4way_context     bmw;
    hashState_groestl       groestl;
    skein512_4way_context   skein;
    jh512_4way_context      jh;
    keccak512_4way_context  keccak;
    luffa_2way_context      luffa;
    cubehashParam           cube;
    sph_shavite512_context  shavite;
    simd_2way_context       simd;
    hashState_echo          echo;
    hamsi512_4way_context   hamsi;
    sph_fugue512_context    fugue;
    shabal512_4way_context  shabal;
} x14_4way_ctx_holder;

x14_4way_ctx_holder x14_4way_ctx __attribute__ ((aligned (64)));

void init_x14_4way_ctx()
{
     blake512_4way_init( &x14_4way_ctx.blake );
     bmw512_4way_init( &x14_4way_ctx.bmw );
     init_groestl( &x14_4way_ctx.groestl, 64 );
     skein512_4way_init( &x14_4way_ctx.skein );
     jh512_4way_init( &x14_4way_ctx.jh );
     keccak512_4way_init( &x14_4way_ctx.keccak );
     luffa_2way_init( &x14_4way_ctx.luffa, 512 );
     cubehashInit( &x14_4way_ctx.cube, 512, 16, 32 );
     sph_shavite512_init( &x14_4way_ctx.shavite );
     simd_2way_init( &x14_4way_ctx.simd, 512 );
     init_echo( &x14_4way_ctx.echo, 512 );
     hamsi512_4way_init( &x14_4way_ctx.hamsi );
     sph_fugue512_init( &x14_4way_ctx.fugue );
     shabal512_4way_init( &x14_4way_ctx.shabal );
};

void x14_4way_hash( void *state, const void *input )
{
     uint64_t hash0[8] __attribute__ ((aligned (64)));
     uint64_t hash1[8] __attribute__ ((aligned (64)));
     uint64_t hash2[8] __attribute__ ((aligned (64)));
     uint64_t hash3[8] __attribute__ ((aligned (64)));
     uint64_t vhash[8*4] __attribute__ ((aligned (64)));
     x14_4way_ctx_holder ctx;
     memcpy( &ctx, &x14_4way_ctx, sizeof(x14_4way_ctx) );

     // 1 Blake
     blake512_4way( &ctx.blake, input, 80 );
     blake512_4way_close( &ctx.blake, vhash );

     // 2 Bmw
     bmw512_4way( &ctx.bmw, vhash, 64 );
     bmw512_4way_close( &ctx.bmw, vhash );

     // Serial
     mm256_dintrlv_4x64( hash0, hash1, hash2, hash3, vhash, 512 );

     // 3 Groestl
     update_and_final_groestl( &ctx.groestl, (char*)hash0, (char*)hash0, 512 );
     memcpy( &ctx.groestl, &x14_4way_ctx.groestl, sizeof(hashState_groestl) );
     update_and_final_groestl( &ctx.groestl, (char*)hash1, (char*)hash1, 512 );
     memcpy( &ctx.groestl, &x14_4way_ctx.groestl, sizeof(hashState_groestl) );
     update_and_final_groestl( &ctx.groestl, (char*)hash2, (char*)hash2, 512 );
     memcpy( &ctx.groestl, &x14_4way_ctx.groestl, sizeof(hashState_groestl) );
     update_and_final_groestl( &ctx.groestl, (char*)hash3, (char*)hash3, 512 );

     // Parallel 4way
     mm256_intrlv_4x64( vhash, hash0, hash1, hash2, hash3, 512 );

     // 4 Skein
     skein512_4way( &ctx.skein, vhash, 64 );
     skein512_4way_close( &ctx.skein, vhash );

     // 5 JH
     jh512_4way( &ctx.jh, vhash, 64 );
     jh512_4way_close( &ctx.jh, vhash );

     // 6 Keccak
     keccak512_4way( &ctx.keccak, vhash, 64 );
     keccak512_4way_close( &ctx.keccak, vhash );

     // Serial
     mm256_dintrlv_4x64( hash0, hash1, hash2, hash3, vhash, 512 );

     // 7 Luffa
     mm256_intrlv_2x128( vhash, hash0, hash1, 512 );
     luffa_2way_update_close( &ctx.luffa, vhash, vhash, 64 );
     mm256_dintrlv_2x128( hash0, hash1, vhash, 512 );
     mm256_intrlv_2x128( vhash, hash2, hash3, 512 );
     luffa_2way_init( &ctx.luffa, 512 );
     luffa_2way_update_close( &ctx.luffa, vhash, vhash, 64 );
     mm256_dintrlv_2x128( hash2, hash3, vhash, 512 );

     // 8 Cubehash
     cubehashUpdateDigest( &ctx.cube, (byte*)hash0, (const byte*) hash0, 64 );
     memcpy( &ctx.cube, &x14_4way_ctx.cube, sizeof(cubehashParam) );
     cubehashUpdateDigest( &ctx.cube, (byte*)hash1, (const byte*) hash1, 64 );
     memcpy( &ctx.cube, &x14_4way_ctx.cube, sizeof(cubehashParam) );
     cubehashUpdateDigest( &ctx.cube, (byte*)hash2, (const byte*) hash2, 64 );
     memcpy( &ctx.cube, &x14_4way_ctx.cube, sizeof(cubehashParam) );
     cubehashUpdateDigest( &ctx.cube, (byte*)hash3, (const byte*) hash3, 64 );

     // 9 Shavite
     sph_shavite512( &ctx.shavite, hash0, 64 );
     sph_shavite512_close( &ctx.shavite, hash0 );
     memcpy( &ctx.shavite, &x14_4way_ctx.shavite,
             sizeof(sph_shavite512_context) );
     sph_shavite512( &ctx.shavite, hash1, 64 );
     sph_shavite512_close( &ctx.shavite, hash1 );
     memcpy( &ctx.shavite, &x14_4way_ctx.shavite,
             sizeof(sph_shavite512_context) );
     sph_shavite512( &ctx.shavite, hash2, 64 );
     sph_shavite512_close( &ctx.shavite, hash2 );
     memcpy( &ctx.shavite, &x14_4way_ctx.shavite,
             sizeof(sph_shavite512_context) );
     sph_shavite512( &ctx.shavite, hash3, 64 );
     sph_shavite512_close( &ctx.shavite, hash3 );

     // 10 Simd
     mm256_intrlv_2x128( vhash, hash0, hash1, 512 );
     simd_2way_update_close( &ctx.simd, vhash, vhash, 512 );
     mm256_dintrlv_2x128( hash0, hash1, vhash, 512 );
     mm256_intrlv_2x128( vhash, hash2, hash3, 512 );
     simd_2way_init( &ctx.simd, 512 );
     simd_2way_update_close( &ctx.simd, vhash, vhash, 512 );
     mm256_dintrlv_2x128( hash2, hash3, vhash, 512 );

     // 11 Echo
     update_final_echo( &ctx.echo, (BitSequence *)hash0,
                       (const BitSequence *) hash0, 512 );
     memcpy( &ctx.echo, &x14_4way_ctx.echo, sizeof(hashState_echo) );
     update_final_echo( &ctx.echo, (BitSequence *)hash1,
                       (const BitSequence *) hash1, 512 );
     memcpy( &ctx.echo, &x14_4way_ctx.echo, sizeof(hashState_echo) );
     update_final_echo( &ctx.echo, (BitSequence *)hash2,
                       (const BitSequence *) hash2, 512 );
     memcpy( &ctx.echo, &x14_4way_ctx.echo, sizeof(hashState_echo) );
     update_final_echo( &ctx.echo, (BitSequence *)hash3,
                       (const BitSequence *) hash3, 512 );

     // 12 Hamsi parallel 4way 32 bit
     mm256_intrlv_4x64( vhash, hash0, hash1, hash2, hash3, 512 );
     hamsi512_4way( &ctx.hamsi, vhash, 64 );
     hamsi512_4way_close( &ctx.hamsi, vhash );
     mm256_dintrlv_4x64( hash0, hash1, hash2, hash3, vhash, 512 );

     // 13 Fugue serial
     sph_fugue512( &ctx.fugue, hash0, 64 );
     sph_fugue512_close( &ctx.fugue, hash0 );
     memcpy( &ctx.fugue, &x14_4way_ctx.fugue, sizeof(sph_fugue512_context) );
     sph_fugue512( &ctx.fugue, hash1, 64 );
     sph_fugue512_close( &ctx.fugue, hash1 );
     memcpy( &ctx.fugue, &x14_4way_ctx.fugue, sizeof(sph_fugue512_context) );
     sph_fugue512( &ctx.fugue, hash2, 64 );
     sph_fugue512_close( &ctx.fugue, hash2 );
     memcpy( &ctx.fugue, &x14_4way_ctx.fugue, sizeof(sph_fugue512_context) );
     sph_fugue512( &ctx.fugue, hash3, 64 );
     sph_fugue512_close( &ctx.fugue, hash3 );

     // 14 Shabal, parallel 32 bit
     mm128_intrlv_4x32( vhash, hash0, hash1, hash2, hash3, 512 );
     shabal512_4way( &ctx.shabal, vhash, 64 );
     shabal512_4way_close( &ctx.shabal, state );

}

int scanhash_x14_4way( int thr_id, struct work *work, uint32_t max_nonce,
                       uint64_t *hashes_done, struct thr_info *mythr )
{
     uint32_t hash[4*16] __attribute__ ((aligned (64)));
     uint32_t vdata[24*4] __attribute__ ((aligned (64)));
     uint32_t endiandata[20] __attribute__((aligned(64)));
     uint32_t *pdata = work->data;
     uint32_t *ptarget = work->target;
     uint32_t n = pdata[19];
     const uint32_t first_nonce = pdata[19];
     uint32_t *nonces = work->nonces;
     int num_found = 0;
     uint32_t *noncep = vdata + 73;   // 9*8 + 1
     const uint32_t Htarg = ptarget[7];
     /* int */ thr_id = mythr->id;  // thr_id arg is deprecated
     uint64_t htmax[] = {          0,        0xF,       0xFF,
                               0xFFF,     0xFFFF, 0x10000000  };
     uint32_t masks[] = { 0xFFFFFFFF, 0xFFFFFFF0, 0xFFFFFF00,
                          0xFFFFF000, 0xFFFF0000,          0  };

     // big endian encode 0..18 uint32_t, 64 bits at a time
     swab32_array( endiandata, pdata, 20 );

     uint64_t *edata = (uint64_t*)endiandata;
     mm256_intrlv_4x64( (uint64_t*)vdata, edata, edata, edata, edata, 640 );

     for ( int m=0; m < 6; m++ )
       if ( Htarg <= htmax[m] )
       {
         uint32_t mask = masks[m];
         do
         {
            be32enc( noncep,   n   );
            be32enc( noncep+2, n+1 );
            be32enc( noncep+4, n+2 );
            be32enc( noncep+6, n+3 );

            x14_4way_hash( hash, vdata );
            pdata[19] = n;

            uint32_t *hash7 = &(hash[7<<2]);

            for ( int lane = 0; lane < 4; lane++ )
            if ( ( hash7[ lane ] & mask ) == 0 )
            {
               // deinterleave hash for lane
               uint32_t lane_hash[8];
               mm128_extract_lane_4x32( lane_hash, hash, lane, 256 );

               if ( fulltest( lane_hash, ptarget ) )
               {
                  pdata[19] = n + lane;
                  nonces[ num_found++ ] = n + lane;
                  work_set_target_ratio( work, lane_hash );
               }
            }
            n += 4;
         } while ( ( num_found == 0 ) && ( n < max_nonce )
                   && !work_restart[thr_id].restart );
         break;
       }

     *hashes_done = n - first_nonce + 1;
     return num_found;
}

#endif