2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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33 #include <xmmintrin.h>
36 #include "opj_includes.h"
39 /* This table contains the norms of the basis function of the reversible MCT. */
41 static const OPJ_FLOAT64 opj_mct_norms[3] = { 1.732, .8292, .8292 };
44 /* This table contains the norms of the basis function of the irreversible MCT. */
46 static const OPJ_FLOAT64 opj_mct_norms_real[3] = { 1.732, 1.805, 1.573 };
48 const OPJ_FLOAT64 * opj_mct_get_mct_norms ()
53 const OPJ_FLOAT64 * opj_mct_get_mct_norms_real ()
55 return opj_mct_norms_real;
59 /* Foward reversible MCT. */
62 OPJ_INT32* restrict c0,
63 OPJ_INT32* restrict c1,
64 OPJ_INT32* restrict c2,
68 for(i = 0; i < n; ++i) {
72 OPJ_INT32 y = (r + (g * 2) + b) >> 2;
82 /* Inverse reversible MCT. */
85 OPJ_INT32* restrict c0,
86 OPJ_INT32* restrict c1,
87 OPJ_INT32* restrict c2,
91 for (i = 0; i < n; ++i) {
95 OPJ_INT32 g = y - ((u + v) >> 2);
105 /* Get norm of basis function of reversible MCT. */
107 OPJ_FLOAT64 opj_mct_getnorm(OPJ_UINT32 compno) {
108 return opj_mct_norms[compno];
112 /* Foward irreversible MCT. */
114 void opj_mct_encode_real(
115 OPJ_INT32* restrict c0,
116 OPJ_INT32* restrict c1,
117 OPJ_INT32* restrict c2,
121 for(i = 0; i < n; ++i) {
125 OPJ_INT32 y = opj_int_fix_mul(r, 2449) + opj_int_fix_mul(g, 4809) + opj_int_fix_mul(b, 934);
126 OPJ_INT32 u = -opj_int_fix_mul(r, 1382) - opj_int_fix_mul(g, 2714) + opj_int_fix_mul(b, 4096);
127 OPJ_INT32 v = opj_int_fix_mul(r, 4096) - opj_int_fix_mul(g, 3430) - opj_int_fix_mul(b, 666);
135 /* Inverse irreversible MCT. */
137 void opj_mct_decode_real(
138 OPJ_FLOAT32* restrict c0,
139 OPJ_FLOAT32* restrict c1,
140 OPJ_FLOAT32* restrict c2,
145 __m128 vrv, vgu, vgv, vbu;
146 vrv = _mm_set1_ps(1.402f);
147 vgu = _mm_set1_ps(0.34413f);
148 vgv = _mm_set1_ps(0.71414f);
149 vbu = _mm_set1_ps(1.772f);
150 for (i = 0; i < (n >> 3); ++i) {
154 vy = _mm_load_ps(c0);
155 vu = _mm_load_ps(c1);
156 vv = _mm_load_ps(c2);
157 vr = _mm_add_ps(vy, _mm_mul_ps(vv, vrv));
158 vg = _mm_sub_ps(_mm_sub_ps(vy, _mm_mul_ps(vu, vgu)), _mm_mul_ps(vv, vgv));
159 vb = _mm_add_ps(vy, _mm_mul_ps(vu, vbu));
160 _mm_store_ps(c0, vr);
161 _mm_store_ps(c1, vg);
162 _mm_store_ps(c2, vb);
167 vy = _mm_load_ps(c0);
168 vu = _mm_load_ps(c1);
169 vv = _mm_load_ps(c2);
170 vr = _mm_add_ps(vy, _mm_mul_ps(vv, vrv));
171 vg = _mm_sub_ps(_mm_sub_ps(vy, _mm_mul_ps(vu, vgu)), _mm_mul_ps(vv, vgv));
172 vb = _mm_add_ps(vy, _mm_mul_ps(vu, vbu));
173 _mm_store_ps(c0, vr);
174 _mm_store_ps(c1, vg);
175 _mm_store_ps(c2, vb);
182 for(i = 0; i < n; ++i) {
183 OPJ_FLOAT32 y = c0[i];
184 OPJ_FLOAT32 u = c1[i];
185 OPJ_FLOAT32 v = c2[i];
186 OPJ_FLOAT32 r = y + (v * 1.402f);
187 OPJ_FLOAT32 g = y - (u * 0.34413f) - (v * (0.71414f));
188 OPJ_FLOAT32 b = y + (u * 1.772f);
196 /* Get norm of basis function of irreversible MCT. */
198 OPJ_FLOAT64 opj_mct_getnorm_real(OPJ_UINT32 compno) {
199 return opj_mct_norms_real[compno];
203 OPJ_BOOL opj_mct_encode_custom(
204 OPJ_BYTE * pCodingdata,
210 OPJ_FLOAT32 * lMct = (OPJ_FLOAT32 *) pCodingdata;
214 OPJ_UINT32 lNbMatCoeff = pNbComp * pNbComp;
215 OPJ_INT32 * lCurrentData = 00;
216 OPJ_INT32 * lCurrentMatrix = 00;
217 OPJ_INT32 ** lData = (OPJ_INT32 **) pData;
218 OPJ_UINT32 lMultiplicator = 1 << 13;
221 OPJ_ARG_NOT_USED(isSigned);
223 lCurrentData = (OPJ_INT32 *) opj_malloc((pNbComp + lNbMatCoeff) * sizeof(OPJ_INT32));
224 if (! lCurrentData) {
228 lCurrentMatrix = lCurrentData + pNbComp;
230 for (i =0;i<lNbMatCoeff;++i) {
231 lCurrentMatrix[i] = (OPJ_INT32) (*(lMct++) * lMultiplicator);
234 for (i = 0; i < n; ++i) {
235 lMctPtr = lCurrentMatrix;
236 for (j=0;j<pNbComp;++j) {
237 lCurrentData[j] = (*(lData[j]));
240 for (j=0;j<pNbComp;++j) {
242 for (k=0;k<pNbComp;++k) {
243 *(lData[j]) += opj_int_fix_mul(*lMctPtr, lCurrentData[k]);
251 opj_free(lCurrentData);
256 OPJ_BOOL opj_mct_decode_custom(
257 OPJ_BYTE * pDecodingData,
268 OPJ_FLOAT32 * lCurrentData = 00;
269 OPJ_FLOAT32 * lCurrentResult = 00;
270 OPJ_FLOAT32 ** lData = (OPJ_FLOAT32 **) pData;
272 OPJ_ARG_NOT_USED(isSigned);
274 lCurrentData = (OPJ_FLOAT32 *) opj_malloc (2 * pNbComp * sizeof(OPJ_FLOAT32));
275 if (! lCurrentData) {
278 lCurrentResult = lCurrentData + pNbComp;
280 for (i = 0; i < n; ++i) {
281 lMct = (OPJ_FLOAT32 *) pDecodingData;
282 for (j=0;j<pNbComp;++j) {
283 lCurrentData[j] = (OPJ_FLOAT32) (*(lData[j]));
285 for (j=0;j<pNbComp;++j) {
286 lCurrentResult[j] = 0;
287 for (k=0;k<pNbComp;++k) {
288 lCurrentResult[j] += *(lMct++) * lCurrentData[k];
290 *(lData[j]++) = (OPJ_FLOAT32) (lCurrentResult[j]);
293 opj_free(lCurrentData);
297 void opj_calculate_norms( OPJ_FLOAT64 * pNorms,
299 OPJ_FLOAT32 * pMatrix)
301 OPJ_UINT32 i,j,lIndex;
302 OPJ_FLOAT32 lCurrentValue;
303 OPJ_FLOAT64 * lNorms = (OPJ_FLOAT64 *) pNorms;
304 OPJ_FLOAT32 * lMatrix = (OPJ_FLOAT32 *) pMatrix;
306 for (i=0;i<pNbComps;++i) {
310 for (j=0;j<pNbComps;++j) {
311 lCurrentValue = lMatrix[lIndex];
313 lNorms[i] += lCurrentValue * lCurrentValue;
315 lNorms[i] = sqrt(lNorms[i]);