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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
* Copyright (c) 2016-2018 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "arm_compute/core/CL/OpenCLEx.h"
#include <dlfcn.h>
#include <iostream>
namespace arm_compute
{
CLSymbolsEx &CLSymbolsEx::get()
{
static CLSymbolsEx symbols;
return symbols;
}
bool CLSymbolsEx::load_default()
{
static const std::vector<std::string> libraries{"libOpenCL.so", "libGLES_mali.so", "libmali.so"};
if (_loaded.first)
{
return _loaded.second;
}
// Indicate that default loading has been tried
_loaded.first = true;
for (const auto &lib : libraries)
{
if (load(lib))
{
return true;
}
}
std::cerr << "Couldn't find any OpenCL library.\n";
return false;
}
bool CLSymbolsEx::load(const std::string &library)
{
void *handle = dlopen(library.c_str(), RTLD_LAZY | RTLD_LOCAL);
if (handle == nullptr)
{
std::cerr << "Can't load " << library << ": " << dlerror() << "\n";
// Set status of loading to failed
_loaded.second = false;
return false;
}
#define LOAD_FUNCTION_PTR(func_name, handle) \
func_name##_ptr = reinterpret_cast<decltype(func_name) *>(dlsym(handle, #func_name));
LOAD_FUNCTION_PTR(clGetEventInfo, handle);
LOAD_FUNCTION_PTR(clSetEventCallback, handle);
#undef LOAD_FUNCTION_PTR
// Don't call dlclose(handle) or all the symbols will be unloaded !
// Disable default loading and set status to successful
_loaded = std::make_pair(true, true);
return true;
}
} // namespace arm_compute
cl_int clGetEventInfo(cl_event event, cl_event_info param_name, size_t param_value_size,
void *param_value, size_t *param_value_size_ret)
{
arm_compute::CLSymbolsEx::get().load_default();
auto func = arm_compute::CLSymbolsEx::get().clGetEventInfo_ptr;
if (func != nullptr)
{
return func(event, param_name, param_value_size, param_value, param_value_size_ret);
}
else
{
return CL_OUT_OF_RESOURCES;
}
}
cl_int clSetEventCallback(cl_event event, cl_int command_exec_callback_type,
void(CL_CALLBACK *pfn_ev_notify)(cl_event ev, cl_int ev_cmd_exec_status,
void *user_data),
void *user_data)
{
arm_compute::CLSymbolsEx::get().load_default();
auto func = arm_compute::CLSymbolsEx::get().clSetEventCallback_ptr;
if (func != nullptr)
{
return func(event, command_exec_callback_type, pfn_ev_notify, user_data);
}
else
{
return CL_OUT_OF_RESOURCES;
}
}
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