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#pragma once
#define __CL_ENABLE_EXCEPTIONS
#define CL_USE_DEPRECATED_OPENCL_2_0_APIS
#include "cl.hpp"
#include <time.h>
#include <libethash/ethash.h>
class ethash_cl_miner
{
public:
struct search_hook
{
// reports progress, return true to abort
virtual bool found(uint64_t const* nonces, uint32_t count) = 0;
virtual bool searched(uint64_t start_nonce, uint32_t count) = 0;
};
public:
ethash_cl_miner();
bool init(ethash_params const& params, const uint8_t seed[32], unsigned workgroup_size = 64);
void hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, unsigned count);
void search(uint8_t const* header, uint64_t target, search_hook& hook);
private:
static unsigned const c_max_search_results = 63;
static unsigned const c_num_buffers = 2;
static unsigned const c_hash_batch_size = 1024;
static unsigned const c_search_batch_size = 1024*256;
ethash_params m_params;
cl::Context m_context;
cl::CommandQueue m_queue;
cl::Kernel m_hash_kernel;
cl::Kernel m_search_kernel;
cl::Buffer m_dag;
cl::Buffer m_header;
cl::Buffer m_hash_buf[c_num_buffers];
cl::Buffer m_search_buf[c_num_buffers];
unsigned m_workgroup_size;
};
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