e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* SPDX-FileCopyrightText: 2004 Bruno Levy
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* SPDX-FileCopyrightText: 2005-2015 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup intern_eigen
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* Sparse linear solver.
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*/
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#pragma once
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Solvers for Ax = b and AtAx = Atb */
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typedef struct LinearSolver LinearSolver;
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LinearSolver *EIG_linear_solver_new(int num_rows, int num_columns, int num_right_hand_sides);
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LinearSolver *EIG_linear_least_squares_solver_new(int num_rows,
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int num_columns,
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int num_right_hand_sides);
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void EIG_linear_solver_delete(LinearSolver *solver);
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/* Variables (x). Any locking must be done before matrix construction. */
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void EIG_linear_solver_variable_set(LinearSolver *solver, int rhs, int index, double value);
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double EIG_linear_solver_variable_get(LinearSolver *solver, int rhs, int index);
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void EIG_linear_solver_variable_lock(LinearSolver *solver, int index);
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void EIG_linear_solver_variable_unlock(LinearSolver *solver, int index);
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/* Matrix (A) and right hand side (b) */
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void EIG_linear_solver_matrix_add(LinearSolver *solver, int row, int col, double value);
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void EIG_linear_solver_right_hand_side_add(LinearSolver *solver, int rhs, int index, double value);
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/* Solve. Repeated solves are supported, by changing b between solves. */
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bool EIG_linear_solver_solve(LinearSolver *solver);
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/* Debugging */
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void EIG_linear_solver_print_matrix(LinearSolver *solver);
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#ifdef __cplusplus
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}
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#endif
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