libavutil/cuda_check.h

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19
  20 #ifndef AVUTIL_CUDA_CHECK_H
  21 #define AVUTIL_CUDA_CHECK_H
  22
  23 #include "compat/cuda/dynlink_loader.h"
  24 #include "error.h"
  25
  26 typedef CUresult CUDAAPI cuda_check_GetErrorName(CUresult error, const char** pstr);
  27 typedef CUresult CUDAAPI cuda_check_GetErrorString(CUresult error, const char** pstr);
  28
  29 /**
  30  * Wrap a CUDA function call and print error information if it fails.
  31  */
  32 static inline int ff_cuda_check(void *avctx,
  33                                 void *cuGetErrorName_fn, void *cuGetErrorString_fn,
  34                                 CUresult err, const char *func)
  35 {
  36     const char *err_name;
  37     const char *err_string;
  38
  39     av_log(avctx, AV_LOG_TRACE, "Calling %s\n", func);
  40
  41     if (err == CUDA_SUCCESS)
  42         return 0;
  43
  44     ((cuda_check_GetErrorName *)cuGetErrorName_fn)(err, &err_name);
  45     ((cuda_check_GetErrorString *)cuGetErrorString_fn)(err, &err_string);
  46
  47     av_log(avctx, AV_LOG_ERROR, "%s failed", func);
  48     if (err_name && err_string)
  49         av_log(avctx, AV_LOG_ERROR, " -> %s: %s", err_name, err_string);
  50     av_log(avctx, AV_LOG_ERROR, "\n");
  51
  52     return AVERROR_EXTERNAL;
  53 }
  54
  55 /**
  56  * Convenience wrapper for ff_cuda_check when directly linking libcuda.
  57  */
  58
  59 #define FF_CUDA_CHECK(avclass, x) ff_cuda_check(avclass, cuGetErrorName, cuGetErrorString, (x), #x)
  60
  61 /**
  62  * Convenience wrapper for ff_cuda_check when dynamically loading cuda symbols.
  63  */
  64
  65 #define FF_CUDA_CHECK_DL(avclass, cudl, x) ff_cuda_check(avclass, cudl->cuGetErrorName, cudl->cuGetErrorString, (x), #x)
  66
  67 #endif /* AVUTIL_CUDA_CHECK_H */