| # Ceres Solver - A fast non-linear least squares minimizer |
| # Copyright 2018 Google Inc. All rights reserved. |
| # http://ceres-solver.org/ |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # |
| # * Redistributions of source code must retain the above copyright notice, |
| # this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above copyright notice, |
| # this list of conditions and the following disclaimer in the documentation |
| # and/or other materials provided with the distribution. |
| # * Neither the name of Google Inc. nor the names of its contributors may be |
| # used to endorse or promote products derived from this software without |
| # specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| # Author: alexs.mac@gmail.com (Alex Stewart) |
| |
| # Ordered by expected preference. |
| set(CERES_THREADING_MODELS "CXX_THREADS;OPENMP;NO_THREADS") |
| |
| function(find_available_ceres_threading_models CERES_THREADING_MODELS_AVAILABLE_VAR) |
| set(CERES_THREADING_MODELS_AVAILABLE ${CERES_THREADING_MODELS}) |
| # Remove any threading models for which the dependencies are not available. |
| find_package(OpenMP QUIET) |
| if (NOT OPENMP_FOUND) |
| list(REMOVE_ITEM CERES_THREADING_MODELS_AVAILABLE "OPENMP") |
| endif() |
| if (NOT CERES_THREADING_MODELS_AVAILABLE) |
| # At least NO_THREADS should never be removed. This check is purely |
| # protective against future threading model updates. |
| message(FATAL_ERROR "Ceres bug: Removed all threading models.") |
| endif() |
| set(${CERES_THREADING_MODELS_AVAILABLE_VAR} |
| ${CERES_THREADING_MODELS_AVAILABLE} PARENT_SCOPE) |
| endfunction() |
| |
| macro(set_ceres_threading_model_to_cxx11_threads) |
| list(APPEND CERES_COMPILE_OPTIONS CERES_USE_CXX_THREADS) |
| endmacro() |
| |
| macro(set_ceres_threading_model_to_openmp) |
| find_package(OpenMP REQUIRED) |
| list(APPEND CERES_COMPILE_OPTIONS CERES_USE_OPENMP) |
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") |
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}") |
| endmacro() |
| |
| macro(set_ceres_threading_model_to_no_threads) |
| list(APPEND CERES_COMPILE_OPTIONS CERES_NO_THREADS) |
| endmacro() |
| |
| macro(set_ceres_threading_model CERES_THREADING_MODEL_TO_SET) |
| if ("${CERES_THREADING_MODEL_TO_SET}" STREQUAL "CXX_THREADS") |
| set_ceres_threading_model_to_cxx11_threads() |
| elseif ("${CERES_THREADING_MODEL_TO_SET}" STREQUAL "OPENMP") |
| set_ceres_threading_model_to_openmp() |
| elseif ("${CERES_THREADING_MODEL_TO_SET}" STREQUAL "NO_THREADS") |
| set_ceres_threading_model_to_no_threads() |
| else() |
| include(PrettyPrintCMakeList) |
| find_available_ceres_threading_models(_AVAILABLE_THREADING_MODELS) |
| pretty_print_cmake_list( |
| _AVAILABLE_THREADING_MODELS ${_AVAILABLE_THREADING_MODELS}) |
| message(FATAL_ERROR "Unknown threading model specified: " |
| "'${CERES_THREADING_MODEL_TO_SET}'. Available threading models for " |
| "this platform are: ${_AVAILABLE_THREADING_MODELS}") |
| endif() |
| message("-- Using Ceres threading model: ${CERES_THREADING_MODEL_TO_SET}") |
| endmacro() |