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cmdutils & opencl: add -opencl_bench option to test and show available OpenCL devices

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Reviewed-by: Wei Gao <highgod0401@gmail.com>
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Lenny Wang
2013-12-08 21:01:00 -06:00
committed by Michael Niedermayer
parent 8e702bd3a8
commit 64f73acd1d
11 changed files with 347 additions and 27 deletions
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42
libavutil/opencl.c
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@@ -761,3 +761,45 @@ int av_opencl_buffer_read_image(uint8_t **dst_data, int *plane_size, int plane_n
}
return 0;
}
int64_t av_opencl_benchmark(AVOpenCLDeviceNode *device_node, cl_platform_id platform,
int64_t (*benchmark)(AVOpenCLExternalEnv *ext_opencl_env))
{
int64_t ret = 0;
cl_int status;
cl_context_properties cps[3];
AVOpenCLExternalEnv *ext_opencl_env = NULL;
ext_opencl_env = av_opencl_alloc_external_env();
ext_opencl_env->device_id = device_node->device_id;
ext_opencl_env->device_type = device_node->device_type;
av_log(&opencl_ctx, AV_LOG_VERBOSE, "Performing test on OpenCL device %s\n",
device_node->device_name);
cps[0] = CL_CONTEXT_PLATFORM;
cps[1] = (cl_context_properties)platform;
cps[2] = 0;
ext_opencl_env->context = clCreateContextFromType(cps, ext_opencl_env->device_type,
NULL, NULL, &status);
if (status != CL_SUCCESS || !ext_opencl_env->context) {
ret = AVERROR_EXTERNAL;
goto end;
}
ext_opencl_env->command_queue = clCreateCommandQueue(ext_opencl_env->context,
ext_opencl_env->device_id, 0, &status);
if (status != CL_SUCCESS || !ext_opencl_env->command_queue) {
ret = AVERROR_EXTERNAL;
goto end;
}
ret = benchmark(ext_opencl_env);
if (ret < 0)
av_log(&opencl_ctx, AV_LOG_ERROR, "Benchmark failed with OpenCL device %s\n",
device_node->device_name);
end:
if (ext_opencl_env->command_queue)
clReleaseCommandQueue(ext_opencl_env->command_queue);
if (ext_opencl_env->context)
clReleaseContext(ext_opencl_env->context);
av_opencl_free_external_env(&ext_opencl_env);
return ret;
}