Add cuCtxGetCurrent function

Author: Roman Arzumanyan

include/ffnvcodec/dynlink_cuda.h

@@ -428,6 +428,7 @@ typedef CUresult CUDAAPI tcuDeviceGetByPCIBusId(CUdevice* dev, const char* pciBu
 typedef CUresult CUDAAPI tcuDeviceGetPCIBusId(char* pciBusId, int len, CUdevice dev);
 typedef CUresult CUDAAPI tcuDeviceComputeCapability(int *major, int *minor, CUdevice dev);
 typedef CUresult CUDAAPI tcuCtxCreate_v2(CUcontext *pctx, unsigned int flags, CUdevice dev);
+typedef CUresult CUDAAPI tcuCtxGetCurrent(CUcontext *pctx);
 typedef CUresult CUDAAPI tcuCtxSetLimit(CUlimit limit, size_t value);
 typedef CUresult CUDAAPI tcuCtxPushCurrent_v2(CUcontext pctx);
 typedef CUresult CUDAAPI tcuCtxPopCurrent_v2(CUcontext *pctx);

include/ffnvcodec/dynlink_loader.h

@@ -149,6 +149,7 @@ typedef struct CudaFunctions {
     tcuDeviceGetPCIBusId *cuDeviceGetPCIBusId;
     tcuDeviceComputeCapability *cuDeviceComputeCapability;
     tcuCtxCreate_v2 *cuCtxCreate;
+    tcuCtxGetCurrent *cuCtxGetCurrent;
     tcuCtxSetLimit *cuCtxSetLimit;
     tcuCtxPushCurrent_v2 *cuCtxPushCurrent;
     tcuCtxPopCurrent_v2 *cuCtxPopCurrent;
@@ -315,6 +316,7 @@ static inline int cuda_load_functions(CudaFunctions **functions, void *logctx)
     LOAD_SYMBOL(cuDeviceGetName, tcuDeviceGetName, "cuDeviceGetName");
     LOAD_SYMBOL(cuDeviceComputeCapability, tcuDeviceComputeCapability, "cuDeviceComputeCapability");
     LOAD_SYMBOL(cuCtxCreate, tcuCtxCreate_v2, "cuCtxCreate_v2");
+    LOAD_SYMBOL(cuCtxGetCurrent, tcuCtxGetCurrent, "cuCtxGetCurrent");
     LOAD_SYMBOL(cuCtxSetLimit, tcuCtxSetLimit, "cuCtxSetLimit");
     LOAD_SYMBOL(cuCtxPushCurrent, tcuCtxPushCurrent_v2, "cuCtxPushCurrent_v2");
     LOAD_SYMBOL(cuCtxPopCurrent, tcuCtxPopCurrent_v2, "cuCtxPopCurrent_v2");