| # Ceres Solver - A fast non-linear least squares minimizer |
| # Copyright 2016 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. |
| # |
| # Authors: alexs.mac@gmail.com (Alex Stewart) |
| # |
| |
| # Conditionally add a value to the output list based on whether the specified |
| # value is found in the input list. |
| function(update_output_if_found INPUT_LIST_VAR OUTPUT_LIST_VAR ITEM_TO_FIND VAR_TO_COPY_IF_FOUND VAR_TO_COPY_IF_NOT_FOUND) |
| list(FIND ${INPUT_LIST_VAR} "${ITEM_TO_FIND}" HAVE_ITEM) |
| # list(FIND ..) returns -1 if the element was not in the list, but CMake |
| # interprets if (VAR) to be true if VAR is any non-zero number, even |
| # negative ones, hence we have to explicitly check for >= 0. |
| if (HAVE_ITEM GREATER -1) |
| list(APPEND ${OUTPUT_LIST_VAR} "${VAR_TO_COPY_IF_FOUND}") |
| else() |
| list(APPEND ${OUTPUT_LIST_VAR} "${VAR_TO_COPY_IF_NOT_FOUND}") |
| endif() |
| set(${OUTPUT_LIST_VAR} ${${OUTPUT_LIST_VAR}} PARENT_SCOPE) |
| endfunction() |
| |
| # Helpers for update_output_if_found() to improve legibility when dealing with |
| # USE_XXX & NO_XXX option types in ceres_compile_options_to_components(). |
| macro(add_to_output_if_found INPUT_LIST_VAR OUTPUT_LIST_VAR ITEM_TO_FIND VAR_TO_COPY_IF_FOUND) |
| update_output_if_found(${INPUT_LIST_VAR} |
| ${OUTPUT_LIST_VAR} |
| "${ITEM_TO_FIND}" |
| "${VAR_TO_COPY_IF_FOUND}" |
| "") # Copy nothing if not found. |
| endmacro() |
| |
| macro(add_to_output_if_not_found INPUT_LIST_VAR OUTPUT_LIST_VAR ITEM_TO_FIND VAR_TO_COPY_IF_NOT_FOUND) |
| update_output_if_found(${INPUT_LIST_VAR} |
| ${OUTPUT_LIST_VAR} |
| "${ITEM_TO_FIND}" |
| "" # Copy nothing if found |
| "${VAR_TO_COPY_IF_NOT_FOUND}") |
| endmacro() |
| |
| # Convert the Ceres compile options specified by: CURRENT_CERES_COMPILE_OPTIONS |
| # into the corresponding list of Ceres components (names), which may be used in: |
| # find_package(Ceres COMPONENTS <XXX>). |
| function(ceres_compile_options_to_components CURRENT_CERES_COMPILE_OPTIONS CERES_COMPONENTS_VAR) |
| # To enable users to specify that they want *a* sparse linear algebra backend |
| # without having to specify explicitly which one, for each sparse library we |
| # add the 'meta-module': SparseLinearAlgebraLibrary in addition to their own |
| # module name. |
| add_to_output_if_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR} |
| CERES_USE_EIGEN_SPARSE "EigenSparse;SparseLinearAlgebraLibrary") |
| add_to_output_if_not_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR} |
| CERES_NO_LAPACK "LAPACK") |
| add_to_output_if_not_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR} |
| CERES_NO_SUITESPARSE "SuiteSparse;SparseLinearAlgebraLibrary") |
| add_to_output_if_not_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR} |
| CERES_NO_ACCELERATE_SPARSE "AccelerateSparse;SparseLinearAlgebraLibrary") |
| add_to_output_if_not_found(CURRENT_CERES_COMPILE_OPTIONS ${CERES_COMPONENTS_VAR} |
| CERES_RESTRICT_SCHUR_SPECIALIZATION "SchurSpecializations") |
| # Remove duplicates of SparseLinearAlgebraLibrary if multiple sparse backends |
| # are present. |
| list(REMOVE_DUPLICATES ${CERES_COMPONENTS_VAR}) |
| set(${CERES_COMPONENTS_VAR} "${${CERES_COMPONENTS_VAR}}" PARENT_SCOPE) |
| endfunction() |