kc3-lang/angle/src/libANGLE/renderer/cl/cl_util.cpp

• Show log

  Commit

• Hash : b300dc52
  Author :
  Date : 2021-05-09T00:35:24
  

  CL: device partitioning for front end and passthrough
  
  Partitioning is the creation of sub-devices. Also add reference
  counting for CL objects, which is needed now for sub-devices.
  
  Also fix CL print format strings, since cl_ulong is actually
  always 64 bit and not unsigned long.
  
  Bug: angleproject:5904
  Change-Id: I006699fad2f953ce312bca87c9b6362b5d77a18a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2880665
  Commit-Queue: John Plate <jplate@google.com>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

Download

• src/libANGLE/renderer/cl/cl_util.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.
  //
  // cl_utils.cpp: Helper functions for the CL back end
  
  #include "libANGLE/renderer/cl/cl_util.h"
  
  #include "libANGLE/Debug.h"
  
  #include <cstdlib>
  
  namespace rx
  {
  
  cl_version ExtractCLVersion(const std::string &version)
  {
      const std::string::size_type spacePos = version.find(' ');
      const std::string::size_type dotPos   = version.find('.');
      if (spacePos == std::string::npos || dotPos == std::string::npos)
      {
          ERR() << "Failed to extract version from OpenCL version string: " << version;
          return 0u;
      }
  
      const long major = std::strtol(&version[spacePos + 1u], nullptr, 10);
      const long minor = std::strtol(&version[dotPos + 1u], nullptr, 10);
      if (major < 1 || major > 9 || minor < 0 || minor > 9)
      {
          ERR() << "Failed to extract version from OpenCL version string: " << version;
          return 0u;
      }
      return CL_MAKE_VERSION(static_cast<cl_uint>(major), static_cast<cl_uint>(minor), 0);
  }
  
  void RemoveUnsupportedCLExtensions(std::string &extensions)
  {
      if (extensions.empty())
      {
          return;
      }
      using SizeT    = std::string::size_type;
      SizeT extStart = 0u;
      SizeT spacePos = extensions.find(' ');
  
      // Remove all unsupported extensions which are terminated by a space
      while (spacePos != std::string::npos)
      {
          const SizeT length = spacePos - extStart;
          if (IsCLExtensionSupported(extensions.substr(extStart, length)))
          {
              extStart = spacePos + 1u;
          }
          else
          {
              extensions.erase(extStart, length + 1u);
          }
          spacePos = extensions.find(' ', extStart);
      }
  
      // Remove last extension in string, if exists and unsupported
      if (extStart < extensions.length())
      {
          const SizeT length = extensions.length() - extStart;
          if (!IsCLExtensionSupported(extensions.substr(extStart, length)))
          {
              extensions.erase(extStart, length);
          }
      }
  
      // Remove trailing spaces
      while (!extensions.empty() && extensions.back() == ' ')
      {
          extensions.pop_back();
      }
  }
  
  void RemoveUnsupportedCLExtensions(NameVersionVector &extensions)
  {
      auto extIt = extensions.cbegin();
      while (extIt != extensions.cend())
      {
          if (IsCLExtensionSupported(extIt->name))
          {
              ++extIt;
          }
          else
          {
              extIt = extensions.erase(extIt);
          }
      }
  }
  
  }  // namespace rx
  

Download