chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,72 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+#######################################################
+# Enhanced version of find OpenCL.
+#
+# Usage:
+#   find_opencl(${USE_OPENCL})
+#
+# - When USE_OPENCL=ON, use OpenCL wrapper for dynamic linking
+# - When USE_OPENCL=/path/to/opencl-sdk-path, use the sdk.
+#   Can be useful when cross compiling and cannot rely on
+#   CMake to provide the correct library as part of the
+#   requested toolchain.
+#
+# Provide variables:
+#
+# - OpenCL_FOUND
+# - OpenCL_INCLUDE_DIRS
+# - OpenCL_LIBRARIES
+#
+
+macro(find_opencl use_opencl)
+  set(__use_opencl ${use_opencl})
+  if(IS_DIRECTORY ${__use_opencl})
+    set(__opencl_sdk ${__use_opencl})
+    message(STATUS "Custom OpenCL SDK PATH=" ${__use_opencl})
+   elseif(IS_DIRECTORY $ENV{OPENCL_SDK})
+     set(__opencl_sdk $ENV{OPENCL_SDK})
+   else()
+     set(__opencl_sdk "")
+   endif()
+
+   if(__opencl_sdk)
+     set(OpenCL_INCLUDE_DIRS ${__opencl_sdk}/include ${__opencl_sdk})
+     if (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY STREQUAL "ONLY")
+       set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
+     endif()
+     # we are in the section dedicated to the explicit pointing of OpenCL SDK path, we must not
+     # look for the OpenCL library by default path, but should be limited by provided SDK
+     find_library(OpenCL_LIBRARIES NAMES OpenCL NO_DEFAULT_PATH PATHS ${__opencl_sdk}/lib ${__opencl_sdk}/lib64 ${__opencl_sdk}/lib/x64/)
+     if(OpenCL_LIBRARIES)
+       set(OpenCL_FOUND TRUE)
+     endif()
+   endif(__opencl_sdk)
+
+   # No user provided OpenCL include/libs found
+   if(NOT OpenCL_FOUND)
+     if(${__use_opencl} MATCHES ${IS_TRUE_PATTERN})
+       find_package(OpenCL QUIET)
+     endif()
+   endif()
+
+  if(OpenCL_FOUND)
+    message(STATUS "OpenCL_INCLUDE_DIRS=" ${OpenCL_INCLUDE_DIRS})
+    message(STATUS "OpenCL_LIBRARIES=" ${OpenCL_LIBRARIES})
+  endif(OpenCL_FOUND)
+endmacro(find_opencl)