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  1. /*
  2.  * Copyright (C) 2012 Peng Gao <peng@multicorewareinc.com>
  3.  * Copyright (C) 2012 Li   Cao <li@multicorewareinc.com>
  4.  * Copyright (C) 2012 Wei  Gao <weigao@multicorewareinc.com>
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. #include "opencl_internal.h"
  24. #include "libavutil/log.h"
  25.  
  26. int ff_opencl_set_parameter(FFOpenclParam *opencl_param, ...)
  27. {
  28.     int ret = 0;
  29.     va_list arg_ptr;
  30.     void *param;
  31.     size_t param_size;
  32.     cl_int status;
  33.     if (!opencl_param->kernel) {
  34.         av_log(opencl_param->ctx, AV_LOG_ERROR, "OpenCL kernel must be set\n");
  35.         return AVERROR(EINVAL);
  36.     }
  37.     va_start(arg_ptr, opencl_param);
  38.     do {
  39.         param = va_arg(arg_ptr, void *);
  40.         if (!param)
  41.             break;
  42.         param_size = va_arg(arg_ptr, size_t);
  43.         if (!param_size) {
  44.             av_log(opencl_param->ctx, AV_LOG_ERROR, "Parameter size must not be 0\n");
  45.             ret = AVERROR(EINVAL);
  46.             goto end;
  47.         }
  48.         status = clSetKernelArg(opencl_param->kernel, opencl_param->param_num, param_size, param);
  49.         if (status != CL_SUCCESS) {
  50.             av_log(opencl_param->ctx, AV_LOG_ERROR, "Cannot set kernel argument: %s\n", av_opencl_errstr(status));
  51.             ret = AVERROR_EXTERNAL;
  52.             goto end;
  53.         }
  54.         opencl_param->param_num++;
  55.     } while (param && param_size);
  56. end:
  57.     va_end(arg_ptr);
  58.     return ret;
  59. }
  60.