mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-30 00:50:37 +08:00
Sergiu Deitsch
f90833f5fa
Currently, the logic for exporting symbols is rather complicated: when tests are enabled internal symbols are exported in addition to the public symbols. Such logic causes several problems. (1) Test binaries link against a Ceres build that is different from the final release since fewer optimizations are applied if more symbols are exported. (2) Also, some toolchains hide symbols by default breaking the existing logic eventually causing linker errors. Since internal symbols are not intended to be used outside of the project, we can compile them into object files and use exactly the same binary code both for the final build and the tests without relying on conditionals. By default, all symbols are now hidden unless annotated as public. Internal symbols are explicitly marked as not being exported in case users chose not to hide symbols by default. Change-Id: I589dd10be2f6f438508783cf99d141af0120057b
100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2015 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: sameeragarwal@google.com (Sameer Agarwal)
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//
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// Block structure objects are used to carry information about the
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// dense block structure of sparse matrices. The BlockSparseMatrix
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// object uses the BlockStructure objects to keep track of the matrix
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// structure and operate upon it. This allows us to use more cache
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// friendly block oriented linear algebra operations on the matrix
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// instead of accessing it one scalar entry at a time.
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#ifndef CERES_INTERNAL_BLOCK_STRUCTURE_H_
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#define CERES_INTERNAL_BLOCK_STRUCTURE_H_
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#include <cstdint>
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#include <vector>
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#include "ceres/internal/export.h"
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namespace ceres {
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namespace internal {
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typedef int32_t BlockSize;
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struct CERES_NO_EXPORT Block {
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Block() : size(-1), position(-1) {}
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Block(int size_, int position_) : size(size_), position(position_) {}
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BlockSize size;
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int position; // Position along the row/column.
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};
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struct CERES_NO_EXPORT Cell {
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Cell() : block_id(-1), position(-1) {}
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Cell(int block_id_, int position_)
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: block_id(block_id_), position(position_) {}
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// Column or row block id as the case maybe.
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int block_id;
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// Where in the values array of the jacobian is this cell located.
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int position;
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};
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// Order cell by their block_id;
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CERES_NO_EXPORT bool CellLessThan(const Cell& lhs, const Cell& rhs);
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struct CERES_NO_EXPORT CompressedList {
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CompressedList() = default;
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// Construct a CompressedList with the cells containing num_cells
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// entries.
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CompressedList(int num_cells) : cells(num_cells) {}
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Block block;
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std::vector<Cell> cells;
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};
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typedef CompressedList CompressedRow;
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typedef CompressedList CompressedColumn;
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struct CERES_NO_EXPORT CompressedRowBlockStructure {
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std::vector<Block> cols;
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std::vector<CompressedRow> rows;
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};
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struct CERES_NO_EXPORT CompressedColumnBlockStructure {
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std::vector<Block> rows;
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std::vector<CompressedColumn> cols;
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};
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} // namespace internal
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} // namespace ceres
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#endif // CERES_INTERNAL_BLOCK_STRUCTURE_H_
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