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#include "uint256.h"
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#include "sph/sph_groestl.h"
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#include "cpuminer-config.h"
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#include "miner.h"
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#include <string.h>
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#include <stdint.h>
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#include <openssl/sha.h>
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extern bool opt_benchmark;
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void myriadgroestl_cpu_init(int thr_id, int threads);
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void myriadgroestl_cpu_setBlock(int thr_id, void *data, void *pTargetIn);
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void myriadgroestl_cpu_hash(int thr_id, int threads, uint32_t startNounce, void *outputHashes, uint32_t *nounce);
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#define SWAP32(x) \
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((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | \
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(((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
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static void myriadhash(void *state, const void *input)
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{
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sph_groestl512_context ctx_groestl;
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uint32_t hashA[16], hashB[16];
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sph_groestl512_init(&ctx_groestl);
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sph_groestl512 (&ctx_groestl, input, 80);
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sph_groestl512_close(&ctx_groestl, hashA);
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SHA256_CTX sha256;
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SHA256_Init(&sha256);
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SHA256_Update(&sha256,(unsigned char *)hashA, 64);
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SHA256_Final((unsigned char *)hashB, &sha256);
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memcpy(state, hashB, 32);
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}
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extern "C" int scanhash_myriad(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
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uint32_t max_nonce, unsigned long *hashes_done)
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{
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uint32_t start_nonce = pdata[19]++;
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const uint32_t throughPut = 128 * 1024;
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// const uint32_t throughPut = 1;
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uint32_t *outputHash = (uint32_t*)malloc(throughPut * 16 * sizeof(uint32_t));
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// TODO: entfernen f<EFBFBD>r eine Release! Ist nur zum Testen!
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if (opt_benchmark)
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((uint32_t*)ptarget)[7] = 0x0000ff;
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const uint32_t Htarg = ptarget[7];
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// init
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static bool init[8] = { false, false, false, false, false, false, false, false };
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if(!init[thr_id])
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{
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#if BIG_DEBUG
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#else
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myriadgroestl_cpu_init(thr_id, throughPut);
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#endif
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init[thr_id] = true;
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}
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uint32_t endiandata[32];
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for (int kk=0; kk < 32; kk++)
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be32enc(&endiandata[kk], pdata[kk]);
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// Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird sp<EFBFBD>ter ersetzt)
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myriadgroestl_cpu_setBlock(thr_id, endiandata, (void*)ptarget);
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do {
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// GPU
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uint32_t foundNounce = 0xFFFFFFFF;
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myriadgroestl_cpu_hash(thr_id, throughPut, pdata[19], outputHash, &foundNounce);
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if(foundNounce < 0xffffffff)
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{
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uint32_t tmpHash[8];
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endiandata[19] = SWAP32(foundNounce);
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myriadhash(tmpHash, endiandata);
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if (tmpHash[7] <= Htarg &&
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fulltest(tmpHash, ptarget)) {
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pdata[19] = foundNounce;
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*hashes_done = foundNounce - start_nonce;
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free(outputHash);
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return true;
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} else {
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applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNounce);
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}
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foundNounce = 0xffffffff;
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}
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if (pdata[19] + throughPut < pdata[19])
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pdata[19] = max_nonce;
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else pdata[19] += throughPut;
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} while (pdata[19] < max_nonce && !work_restart[thr_id].restart);
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*hashes_done = pdata[19] - start_nonce;
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free(outputHash);
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return 0;
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}
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