GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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/**
* Wrapper to nvapi.dll to query informations missing for x86 binaries (there is no nvml x86)
* based on the work of https://github.com/ircubic/lib_gpu
*
* tpruvot@ccminer.org 06-2016
*/
#ifdef _WIN32
#include <windows.h>
#include <memory>
#include <stdexcept>
#include "compat/nvapi/nvapi_ccminer.h"
class NvAPILibraryHandle
{
typedef void *(*QueryPtr)(uint32_t);
private:
HMODULE library;
QueryPtr nvidia_query;
public:
NvAPILibraryHandle()
{
bool success = false;
library = LoadLibrary("nvapi.dll");
if (library != NULL) {
nvidia_query = reinterpret_cast<QueryPtr>(GetProcAddress(library, "nvapi_QueryInterface"));
if (nvidia_query != NULL) {
const uint32_t NVAPI_ID_INIT = 0x0150E828;
auto init = static_cast<NvAPI_Status(*)()>(nvidia_query(NVAPI_ID_INIT));
NvAPI_Status ret = init();
success = (ret == NVAPI_OK);
}
}
if (!success) {
throw std::runtime_error("Unable to locate NVAPI library!");
}
}
~NvAPILibraryHandle()
{
NvAPI_DLL_Unload();
FreeLibrary(library);
}
void *query(uint32_t ID)
{
return nvidia_query(ID);
}
};
static std::unique_ptr<NvAPILibraryHandle> nvidia_handle;
bool nvapi_dll_loaded = false;
NvAPI_Status nvapi_dll_init()
{
try {
if (!nvapi_dll_loaded) {
nvidia_handle = std::make_unique<NvAPILibraryHandle>();
nvapi_dll_loaded = true;
}
}
catch (std::runtime_error) {
nvapi_dll_loaded = false;
return NVAPI_ERROR;
}
return NVAPI_OK;
}
// Hidden nvapi.dll functions
#define NVAPI_ID_IFVERSION 0x01053FA5
NvAPI_Status NvAPI_DLL_GetInterfaceVersionString(NvAPI_ShortString string) {
static NvAPI_Status (*pointer)(NvAPI_ShortString string) = NULL;
if(!nvapi_dll_loaded) return NVAPI_API_NOT_INITIALIZED;
if(!pointer) {
pointer = (NvAPI_Status (*)(NvAPI_ShortString))nvidia_handle->query(NVAPI_ID_IFVERSION);
}
return (*pointer)(string);
}
#define NVAPI_ID_POWER_INFO 0x34206D86
NvAPI_Status NvAPI_DLL_ClientPowerPoliciesGetInfo(NvPhysicalGpuHandle handle, NVAPI_GPU_POWER_INFO* pInfo) {
static NvAPI_Status (*pointer)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_INFO*) = NULL;
if(!nvapi_dll_loaded) return NVAPI_API_NOT_INITIALIZED;
if(!pointer) {
pointer = (NvAPI_Status (*)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_INFO*))nvidia_handle->query(NVAPI_ID_POWER_INFO);
}
return (*pointer)(handle, pInfo);
}
#define NVAPI_ID_POWERPOL_GET 0x70916171
NvAPI_Status NvAPI_DLL_ClientPowerPoliciesGetStatus(NvPhysicalGpuHandle handle, NVAPI_GPU_POWER_STATUS* pPolicies) {
static NvAPI_Status (*pointer)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_STATUS*) = NULL;
if(!nvapi_dll_loaded) return NVAPI_API_NOT_INITIALIZED;
if(!pointer) {
pointer = (NvAPI_Status (*)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_STATUS*))nvidia_handle->query(NVAPI_ID_POWERPOL_GET);
}
return (*pointer)(handle, pPolicies);
}
#define NVAPI_ID_POWERPOL_SET 0x0AD95F5ED
NvAPI_Status NvAPI_DLL_ClientPowerPoliciesSetStatus(NvPhysicalGpuHandle handle, NVAPI_GPU_POWER_STATUS* pPolicies) {
static NvAPI_Status (*pointer)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_STATUS*) = NULL;
if(!nvapi_dll_loaded) return NVAPI_API_NOT_INITIALIZED;
if(!pointer) {
pointer = (NvAPI_Status (*)(NvPhysicalGpuHandle, NVAPI_GPU_POWER_STATUS*))nvidia_handle->query(NVAPI_ID_POWERPOL_SET);
}
return (*pointer)(handle, pPolicies);
}
#define NVAPI_ID_UNLOAD 0xD22BDD7E
NvAPI_Status NvAPI_DLL_Unload() {
static NvAPI_Status (*pointer)() = NULL;
if(!nvapi_dll_loaded) return NVAPI_API_NOT_INITIALIZED;
if(!pointer) {
pointer = (NvAPI_Status (*)())nvidia_handle->query(NVAPI_ID_UNLOAD);
}
return (*pointer)();
}
#endif