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-rw-r--r--third_party/libopenjpeg20/invert.c294
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diff --git a/third_party/libopenjpeg20/invert.c b/third_party/libopenjpeg20/invert.c
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index 4c1ee780d3..0000000000
--- a/third_party/libopenjpeg20/invert.c
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-/*
- * The copyright in this software is being made available under the 2-clauses
- * BSD License, included below. This software may be subject to other third
- * party and contributor rights, including patent rights, and no such rights
- * are granted under this license.
- *
- * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * 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.
- */
-
-#include "opj_includes.h"
-
-/**
- * LUP decomposition
- */
-static OPJ_BOOL opj_lupDecompose(OPJ_FLOAT32 * matrix,
- OPJ_UINT32 * permutations,
- OPJ_FLOAT32 * p_swap_area,
- OPJ_UINT32 nb_compo);
-/**
- * LUP solving
- */
-static void opj_lupSolve(OPJ_FLOAT32 * pResult,
- OPJ_FLOAT32* pMatrix,
- OPJ_FLOAT32* pVector,
- OPJ_UINT32* pPermutations,
- OPJ_UINT32 nb_compo,
- OPJ_FLOAT32 * p_intermediate_data);
-
-/**
- *LUP inversion (call with the result of lupDecompose)
- */
-static void opj_lupInvert ( OPJ_FLOAT32 * pSrcMatrix,
- OPJ_FLOAT32 * pDestMatrix,
- OPJ_UINT32 nb_compo,
- OPJ_UINT32 * pPermutations,
- OPJ_FLOAT32 * p_src_temp,
- OPJ_FLOAT32 * p_dest_temp,
- OPJ_FLOAT32 * p_swap_area);
-
-/*
-==========================================================
- Matric inversion interface
-==========================================================
-*/
-/**
- * Matrix inversion.
- */
-OPJ_BOOL opj_matrix_inversion_f(OPJ_FLOAT32 * pSrcMatrix,
- OPJ_FLOAT32 * pDestMatrix,
- OPJ_UINT32 nb_compo)
-{
- OPJ_BYTE * l_data = 00;
- OPJ_UINT32 l_permutation_size = nb_compo * (OPJ_UINT32)sizeof(OPJ_UINT32);
- OPJ_UINT32 l_swap_size = nb_compo * (OPJ_UINT32)sizeof(OPJ_FLOAT32);
- OPJ_UINT32 l_total_size = l_permutation_size + 3 * l_swap_size;
- OPJ_UINT32 * lPermutations = 00;
- OPJ_FLOAT32 * l_double_data = 00;
-
- l_data = (OPJ_BYTE *) opj_malloc(l_total_size);
- if (l_data == 0) {
- return OPJ_FALSE;
- }
- lPermutations = (OPJ_UINT32 *) l_data;
- l_double_data = (OPJ_FLOAT32 *) (l_data + l_permutation_size);
- memset(lPermutations,0,l_permutation_size);
-
- if(! opj_lupDecompose(pSrcMatrix,lPermutations,l_double_data,nb_compo)) {
- opj_free(l_data);
- return OPJ_FALSE;
- }
-
- opj_lupInvert(pSrcMatrix,pDestMatrix,nb_compo,lPermutations,l_double_data,l_double_data + nb_compo,l_double_data + 2*nb_compo);
- opj_free(l_data);
-
- return OPJ_TRUE;
-}
-
-
-/*
-==========================================================
- Local functions
-==========================================================
-*/
-OPJ_BOOL opj_lupDecompose(OPJ_FLOAT32 * matrix,OPJ_UINT32 * permutations,
- OPJ_FLOAT32 * p_swap_area,
- OPJ_UINT32 nb_compo)
-{
- OPJ_UINT32 * tmpPermutations = permutations;
- OPJ_UINT32 * dstPermutations;
- OPJ_UINT32 k2=0,t;
- OPJ_FLOAT32 temp;
- OPJ_UINT32 i,j,k;
- OPJ_FLOAT32 p;
- OPJ_UINT32 lLastColum = nb_compo - 1;
- OPJ_UINT32 lSwapSize = nb_compo * (OPJ_UINT32)sizeof(OPJ_FLOAT32);
- OPJ_FLOAT32 * lTmpMatrix = matrix;
- OPJ_FLOAT32 * lColumnMatrix,* lDestMatrix;
- OPJ_UINT32 offset = 1;
- OPJ_UINT32 lStride = nb_compo-1;
-
- /*initialize permutations */
- for (i = 0; i < nb_compo; ++i)
- {
- *tmpPermutations++ = i;
- }
- /* now make a pivot with colum switch */
- tmpPermutations = permutations;
- for (k = 0; k < lLastColum; ++k) {
- p = 0.0;
-
- /* take the middle element */
- lColumnMatrix = lTmpMatrix + k;
-
- /* make permutation with the biggest value in the column */
- for (i = k; i < nb_compo; ++i) {
- temp = ((*lColumnMatrix > 0) ? *lColumnMatrix : -(*lColumnMatrix));
- if (temp > p) {
- p = temp;
- k2 = i;
- }
- /* next line */
- lColumnMatrix += nb_compo;
- }
-
- /* a whole rest of 0 -> non singular */
- if (p == 0.0) {
- return OPJ_FALSE;
- }
-
- /* should we permute ? */
- if (k2 != k) {
- /*exchange of line */
- /* k2 > k */
- dstPermutations = tmpPermutations + k2 - k;
- /* swap indices */
- t = *tmpPermutations;
- *tmpPermutations = *dstPermutations;
- *dstPermutations = t;
-
- /* and swap entire line. */
- lColumnMatrix = lTmpMatrix + (k2 - k) * nb_compo;
- memcpy(p_swap_area,lColumnMatrix,lSwapSize);
- memcpy(lColumnMatrix,lTmpMatrix,lSwapSize);
- memcpy(lTmpMatrix,p_swap_area,lSwapSize);
- }
-
- /* now update data in the rest of the line and line after */
- lDestMatrix = lTmpMatrix + k;
- lColumnMatrix = lDestMatrix + nb_compo;
- /* take the middle element */
- temp = *(lDestMatrix++);
-
- /* now compute up data (i.e. coeff up of the diagonal). */
- for (i = offset; i < nb_compo; ++i) {
- /*lColumnMatrix; */
- /* divide the lower column elements by the diagonal value */
-
- /* matrix[i][k] /= matrix[k][k]; */
- /* p = matrix[i][k] */
- p = *lColumnMatrix / temp;
- *(lColumnMatrix++) = p;
-
- for (j = /* k + 1 */ offset; j < nb_compo; ++j) {
- /* matrix[i][j] -= matrix[i][k] * matrix[k][j]; */
- *(lColumnMatrix++) -= p * (*(lDestMatrix++));
- }
- /* come back to the k+1th element */
- lDestMatrix -= lStride;
- /* go to kth element of the next line */
- lColumnMatrix += k;
- }
-
- /* offset is now k+2 */
- ++offset;
- /* 1 element less for stride */
- --lStride;
- /* next line */
- lTmpMatrix+=nb_compo;
- /* next permutation element */
- ++tmpPermutations;
- }
- return OPJ_TRUE;
-}
-
-void opj_lupSolve (OPJ_FLOAT32 * pResult,
- OPJ_FLOAT32 * pMatrix,
- OPJ_FLOAT32 * pVector,
- OPJ_UINT32* pPermutations,
- OPJ_UINT32 nb_compo,OPJ_FLOAT32 * p_intermediate_data)
-{
- OPJ_INT32 k;
- OPJ_UINT32 i,j;
- OPJ_FLOAT32 sum;
- OPJ_FLOAT32 u;
- OPJ_UINT32 lStride = nb_compo+1;
- OPJ_FLOAT32 * lCurrentPtr;
- OPJ_FLOAT32 * lIntermediatePtr;
- OPJ_FLOAT32 * lDestPtr;
- OPJ_FLOAT32 * lTmpMatrix;
- OPJ_FLOAT32 * lLineMatrix = pMatrix;
- OPJ_FLOAT32 * lBeginPtr = pResult + nb_compo - 1;
- OPJ_FLOAT32 * lGeneratedData;
- OPJ_UINT32 * lCurrentPermutationPtr = pPermutations;
-
-
- lIntermediatePtr = p_intermediate_data;
- lGeneratedData = p_intermediate_data + nb_compo - 1;
-
- for (i = 0; i < nb_compo; ++i) {
- sum = 0.0;
- lCurrentPtr = p_intermediate_data;
- lTmpMatrix = lLineMatrix;
- for (j = 1; j <= i; ++j)
- {
- /* sum += matrix[i][j-1] * y[j-1]; */
- sum += (*(lTmpMatrix++)) * (*(lCurrentPtr++));
- }
- /*y[i] = pVector[pPermutations[i]] - sum; */
- *(lIntermediatePtr++) = pVector[*(lCurrentPermutationPtr++)] - sum;
- lLineMatrix += nb_compo;
- }
-
- /* we take the last point of the matrix */
- lLineMatrix = pMatrix + nb_compo*nb_compo - 1;
-
- /* and we take after the last point of the destination vector */
- lDestPtr = pResult + nb_compo;
-
-
- assert(nb_compo != 0);
- for (k = (OPJ_INT32)nb_compo - 1; k != -1 ; --k) {
- sum = 0.0;
- lTmpMatrix = lLineMatrix;
- u = *(lTmpMatrix++);
- lCurrentPtr = lDestPtr--;
- for (j = (OPJ_UINT32)(k + 1); j < nb_compo; ++j) {
- /* sum += matrix[k][j] * x[j] */
- sum += (*(lTmpMatrix++)) * (*(lCurrentPtr++));
- }
- /*x[k] = (y[k] - sum) / u; */
- *(lBeginPtr--) = (*(lGeneratedData--) - sum) / u;
- lLineMatrix -= lStride;
- }
-}
-
-
-void opj_lupInvert (OPJ_FLOAT32 * pSrcMatrix,
- OPJ_FLOAT32 * pDestMatrix,
- OPJ_UINT32 nb_compo,
- OPJ_UINT32 * pPermutations,
- OPJ_FLOAT32 * p_src_temp,
- OPJ_FLOAT32 * p_dest_temp,
- OPJ_FLOAT32 * p_swap_area )
-{
- OPJ_UINT32 j,i;
- OPJ_FLOAT32 * lCurrentPtr;
- OPJ_FLOAT32 * lLineMatrix = pDestMatrix;
- OPJ_UINT32 lSwapSize = nb_compo * (OPJ_UINT32)sizeof(OPJ_FLOAT32);
-
- for (j = 0; j < nb_compo; ++j) {
- lCurrentPtr = lLineMatrix++;
- memset(p_src_temp,0,lSwapSize);
- p_src_temp[j] = 1.0;
- opj_lupSolve(p_dest_temp,pSrcMatrix,p_src_temp, pPermutations, nb_compo , p_swap_area);
-
- for (i = 0; i < nb_compo; ++i) {
- *(lCurrentPtr) = p_dest_temp[i];
- lCurrentPtr+=nb_compo;
- }
- }
-}
-
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