kc3-lang/angle/src/libOpenCL/dispatch.cpp

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• Hash : 05fb2272
  Author :
  Date : 2021-04-27T19:31:31
  

  Add support for OpenCL ICD Loader
  
  Bug: angleproject:5908
  Change-Id: Idafc0d15b69f9a21f2ab5e48c4c34f0dc0e0ee96
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2854598
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Commit-Queue: John Plate <jplate@google.com>
  

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• src/libOpenCL/dispatch.cpp

• //
  // Copyright 2021 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // dispatch.cpp: Implements a function to fetch the ANGLE OpenCL dispatch table.
  
  #include "libOpenCL/dispatch.h"
  
  #include "anglebase/no_destructor.h"
  #include "common/system_utils.h"
  
  #include <iostream>
  #include <memory>
  
  namespace cl
  {
  
  namespace
  {
  std::unique_ptr<angle::Library> &EntryPointsLib()
  {
      static angle::base::NoDestructor<std::unique_ptr<angle::Library>> sEntryPointsLib;
      return *sEntryPointsLib;
  }
  }  // anonymous namespace
  
  cl_icd_dispatch &GetDispatch()
  {
      static cl_icd_dispatch *sDispatch = nullptr;
  
      if (sDispatch == nullptr)
      {
          EntryPointsLib().reset(
              angle::OpenSharedLibrary(ANGLE_GLESV2_LIBRARY_NAME, angle::SearchType::ApplicationDir));
          if (EntryPointsLib())
          {
              sDispatch = reinterpret_cast<cl_icd_dispatch *>(
                  EntryPointsLib()->getSymbol("gCLIcdDispatchTable"));
              if (sDispatch == nullptr)
              {
                  std::cerr << "Error loading CL dispatch table." << std::endl;
              }
          }
          else
          {
              std::cerr << "Error opening GLESv2 library." << std::endl;
          }
      }
  
      return *sDispatch;
  }
  
  }  // namespace cl
  

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