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gnss-sdr/cmake/Modules/FindOPENCL.cmake
2018-12-14 18:59:36 +01:00

111 lines
4.1 KiB
CMake

# Copyright (C) 2011-2018 (see AUTHORS file for a list of contributors)
#
# This file is part of GNSS-SDR.
#
# GNSS-SDR is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GNSS-SDR is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
#
# This file taken from FindOpenCL project @ http://gitorious.com/findopencl
#
# - Try to find OpenCL
# This module tries to find an OpenCL implementation on your system. It supports
# AMD / ATI, Apple and NVIDIA implementations, but shoudl work, too.
#
# Once done this will define
# OPENCL_FOUND - system has OpenCL
# OPENCL_INCLUDE_DIRS - the OpenCL include directory
# OPENCL_LIBRARIES - link these to use OpenCL
#
# WIN32 should work, but is untested
include(FindPackageHandleStandardArgs)
set(OPENCL_VERSION_STRING "0.1.0")
set(OPENCL_VERSION_MAJOR 0)
set(OPENCL_VERSION_MINOR 1)
set(OPENCL_VERSION_PATCH 0)
if(APPLE)
find_library(OPENCL_LIBRARIES OpenCL DOC "OpenCL lib for OSX")
find_path(OPENCL_INCLUDE_DIRS OpenCL/cl.h DOC "Include for OpenCL on OSX")
find_path(_OPENCL_CPP_INCLUDE_DIRS OpenCL/cl.hpp DOC "Include for OpenCL CPP bindings on OSX")
else()
if(WIN32)
find_path(OPENCL_INCLUDE_DIRS CL/cl.h)
find_path(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp)
# The AMD SDK currently installs both x86 and x86_64 libraries
# This is only a hack to find out architecture
if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
set(OPENCL_LIB_DIR "$ENV{ATISTREAMSDKROOT}/lib/x86_64")
set(OPENCL_LIB_DIR "$ENV{ATIINTERNALSTREAMSDKROOT}/lib/x86_64")
else()
set(OPENCL_LIB_DIR "$ENV{ATISTREAMSDKROOT}/lib/x86")
set(OPENCL_LIB_DIR "$ENV{ATIINTERNALSTREAMSDKROOT}/lib/x86")
endif()
# find out if the user asked for a 64-bit build, and use the corresponding
# 64 or 32 bit NVIDIA library paths to the search:
string(REGEX MATCH "Win64" ISWIN64 ${CMAKE_GENERATOR})
if("${ISWIN64}" STREQUAL "Win64")
find_library(OPENCL_LIBRARIES OpenCL.lib ${OPENCL_LIB_DIR} $ENV{CUDA_LIB_PATH} $ENV{CUDA_PATH}/lib/x64)
else()
find_library(OPENCL_LIBRARIES OpenCL.lib ${OPENCL_LIB_DIR} $ENV{CUDA_LIB_PATH} $ENV{CUDA_PATH}/lib/Win32)
endif()
get_filename_component(_OPENCL_INC_CAND ${OPENCL_LIB_DIR}/../../include ABSOLUTE)
# On Win32 search relative to the library
find_path(OPENCL_INCLUDE_DIRS CL/cl.h PATHS "${_OPENCL_INC_CAND}" $ENV{CUDA_INC_PATH} $ENV{CUDA_PATH}/include)
find_path(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS "${_OPENCL_INC_CAND}" $ENV{CUDA_INC_PATH} $ENV{CUDA_PATH}/include)
else()
# Unix style platforms
find_library(OPENCL_LIBRARIES OpenCL
ENV LD_LIBRARY_PATH
)
get_filename_component(OPENCL_LIB_DIR ${OPENCL_LIBRARIES} PATH)
get_filename_component(_OPENCL_INC_CAND ${OPENCL_LIB_DIR}/../../include ABSOLUTE)
# The AMD SDK currently does not place its headers
# in /usr/include, therefore also search relative
# to the library
find_path(OPENCL_INCLUDE_DIRS CL/cl.h PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include")
find_path(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include")
endif()
endif()
find_package_handle_standard_args(OPENCL DEFAULT_MSG OPENCL_LIBRARIES OPENCL_INCLUDE_DIRS)
if(_OPENCL_CPP_INCLUDE_DIRS)
set(OPENCL_HAS_CPP_BINDINGS TRUE)
list(APPEND OPENCL_INCLUDE_DIRS ${_OPENCL_CPP_INCLUDE_DIRS})
# This is often the same, so clean up
list(REMOVE_DUPLICATES OPENCL_INCLUDE_DIRS)
endif()
mark_as_advanced(
OPENCL_INCLUDE_DIRS
)
if(OPENCL_INCLUDE_DIRS AND OPENCL_LIBRARIES)
set( OPENCL_FOUND TRUE )
add_definitions( -DOPENCL=1 )
else()
set( OPENCL_FOUND FALSE )
add_definitions( -DOPENCL=0 )
endif()