| File: | IccProfLib/IccMatrixMath.cpp |
| Warning: | line 364, column 17 Value stored to 'dstDiff' during its initialization is never read |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /** @file |
| 2 | File: IccMatrixMath.cpp |
| 3 | |
| 4 | Contains: Implementation of matrix math operations |
| 5 | |
| 6 | Version: V1 |
| 7 | |
| 8 | Copyright: See ICC Software License |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * The ICC Software License, Version 0.2 |
| 13 | * |
| 14 | * |
| 15 | * Copyright (c) 2003-2015 The International Color Consortium. All rights |
| 16 | * reserved. |
| 17 | * |
| 18 | * Redistribution and use in source and binary forms, with or without |
| 19 | * modification, are permitted provided that the following conditions |
| 20 | * are met: |
| 21 | * |
| 22 | * 1. Redistributions of source code must retain the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer. |
| 24 | * |
| 25 | * 2. Redistributions in binary form must reproduce the above copyright |
| 26 | * notice, this list of conditions and the following disclaimer in |
| 27 | * the documentation and/or other materials provided with the |
| 28 | * distribution. |
| 29 | * |
| 30 | * 3. In the absence of prior written permission, the names "ICC" and "The |
| 31 | * International Color Consortium" must not be used to imply that the |
| 32 | * ICC organization endorses or promotes products derived from this |
| 33 | * software. |
| 34 | * |
| 35 | * |
| 36 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 37 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 38 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 39 | * DISCLAIMED. IN NO EVENT SHALL THE INTERNATIONAL COLOR CONSORTIUM OR |
| 40 | * ITS CONTRIBUTING MEMBERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 42 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 43 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 44 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 45 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 46 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 47 | * SUCH DAMAGE. |
| 48 | * ==================================================================== |
| 49 | * |
| 50 | * This software consists of voluntary contributions made by many |
| 51 | * individuals on behalf of the The International Color Consortium. |
| 52 | * |
| 53 | * |
| 54 | * Membership in the ICC is encouraged when this software is used for |
| 55 | * commercial purposes. |
| 56 | * |
| 57 | * |
| 58 | * For more information on The International Color Consortium, please |
| 59 | * see <http://www.color.org/>. |
| 60 | * |
| 61 | * |
| 62 | */ |
| 63 | |
| 64 | ////////////////////////////////////////////////////////////////////// |
| 65 | // HISTORY: |
| 66 | // |
| 67 | // -Initial implementation by Max Derhak 5-15-2003 |
| 68 | // -Added support for Monochrome ICC profile apply by Rohit Patil 12-03-2008 |
| 69 | // -Integrated changes for PCS adjustment by George Pawle 12-09-2008 |
| 70 | // |
| 71 | ////////////////////////////////////////////////////////////////////// |
| 72 | |
| 73 | #ifdef WIN32 |
| 74 | #pragma warning( disable: 4786) //disable warning in <list.h> |
| 75 | #endif |
| 76 | |
| 77 | #include "IccMatrixMath.h" |
| 78 | #include "IccUtil.h" |
| 79 | #include <cstring> |
| 80 | #include <cstdio> |
| 81 | |
| 82 | #ifdef USEREFICCMAXNAMESPACE |
| 83 | namespace refIccMAX { |
| 84 | #endif |
| 85 | |
| 86 | /** |
| 87 | ************************************************************************** |
| 88 | * Name: CIccMatrixMath::CIccMatrixMath |
| 89 | * |
| 90 | * Purpose: |
| 91 | * Constructor |
| 92 | ************************************************************************** |
| 93 | */ |
| 94 | CIccMatrixMath::CIccMatrixMath(icUInt16Number nRows, icUInt16Number nCols, bool bInitIdentity/* =false */) |
| 95 | { |
| 96 | int nTotal = nRows * nCols; |
| 97 | int nMin = nRows<nCols ? nRows : nCols; |
| 98 | |
| 99 | m_nRows = nRows; |
| 100 | m_nCols = nCols; |
| 101 | m_vals = new icFloatNumber[nTotal]; |
| 102 | if (bInitIdentity) { |
| 103 | memset(m_vals, 0, nTotal * sizeof(icFloatNumber)); |
| 104 | int i; |
| 105 | for (i=0; i<nMin; i++) { |
| 106 | icFloatNumber *row = entry(nRows-1-i); |
| 107 | row[nCols-1-i] = 1.0; |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | |
| 113 | /** |
| 114 | ************************************************************************** |
| 115 | * Name: CIccMatrixMath::CIccMatrixMath |
| 116 | * |
| 117 | * Purpose: |
| 118 | * Copy Constructor |
| 119 | ************************************************************************** |
| 120 | */ |
| 121 | CIccMatrixMath::CIccMatrixMath(const CIccMatrixMath &matrix) |
| 122 | { |
| 123 | int nTotal = matrix.m_nRows * matrix.m_nCols; |
| 124 | m_nRows = matrix.m_nRows; |
| 125 | m_nCols = matrix.m_nCols; |
| 126 | m_vals = new icFloatNumber[nTotal]; |
| 127 | memcpy(m_vals, matrix.m_vals, nTotal*sizeof(icFloatNumber)); |
| 128 | } |
| 129 | |
| 130 | |
| 131 | /** |
| 132 | ************************************************************************** |
| 133 | * Name: CIccMatrixMath::~CIccMatrixMath |
| 134 | * |
| 135 | * Purpose: |
| 136 | * Destructor |
| 137 | ************************************************************************** |
| 138 | */ |
| 139 | CIccMatrixMath::~CIccMatrixMath() |
| 140 | { |
| 141 | if (m_vals) |
| 142 | delete m_vals; |
| 143 | } |
| 144 | |
| 145 | |
| 146 | /** |
| 147 | ************************************************************************** |
| 148 | * Name: CIccMatrixMath::VectorMult |
| 149 | * |
| 150 | * Purpose: |
| 151 | * Multiplies pSrc vector passed by a matrix resulting in a pDst vector |
| 152 | ************************************************************************** |
| 153 | */ |
| 154 | void CIccMatrixMath::VectorMult(icFloatNumber *pDst, const icFloatNumber *pSrc) const |
| 155 | { |
| 156 | int i, j; |
| 157 | const icFloatNumber *row = entry(0); |
| 158 | for (j=0; j<m_nRows; j++) { |
| 159 | pDst[j] = 0.0f; |
| 160 | for (i=0; i<m_nCols; i++) { |
| 161 | if (row[i]!=0.0) |
| 162 | pDst[j] += row[i] * pSrc[i]; |
| 163 | } |
| 164 | row = &row[m_nCols]; |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | |
| 169 | /** |
| 170 | ************************************************************************** |
| 171 | * Name: CIccMatrixMath::dump |
| 172 | * |
| 173 | * Purpose: |
| 174 | * dumps the context of the step |
| 175 | ************************************************************************** |
| 176 | */ |
| 177 | void CIccMatrixMath::dumpMtx(std::string &str) const |
| 178 | { |
| 179 | char buf[80]; |
| 180 | int i, j; |
| 181 | const icFloatNumber *row = entry(0); |
| 182 | for (j=0; j<m_nRows; j++) { |
| 183 | for (i=0; i<m_nCols; i++) { |
| 184 | sprintf(buf, ICCMTXSTEPDUMPFMT" %.8f", row[i]); |
| 185 | str += buf; |
| 186 | } |
| 187 | str += "\n"; |
| 188 | row = &row[m_nCols]; |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | |
| 193 | /** |
| 194 | ************************************************************************** |
| 195 | * Name: CIccMatrixMath::Mult |
| 196 | * |
| 197 | * Purpose: |
| 198 | * Creates a new CIccMatrixMath that is the result of concatentating |
| 199 | * another matrix with this matrix. (IE result = matrix * this). |
| 200 | ************************************************************************** |
| 201 | */ |
| 202 | CIccMatrixMath *CIccMatrixMath::Mult(const CIccMatrixMath *matrix) const |
| 203 | { |
| 204 | icUInt16Number mCols = matrix->m_nCols; |
| 205 | icUInt16Number mRows = matrix->m_nRows; |
| 206 | |
| 207 | if (m_nRows != mCols) |
| 208 | return NULL__null; |
| 209 | |
| 210 | CIccMatrixMath *pNew = new CIccMatrixMath(mRows, m_nCols); |
| 211 | |
| 212 | int i, j, k; |
| 213 | for (j=0; j<mRows; j++) { |
| 214 | const icFloatNumber *row = matrix->entry(j); |
| 215 | for (i=0; i<m_nCols; i++) { |
| 216 | icFloatNumber *to = pNew->entry(j, i); |
| 217 | const icFloatNumber *from = entry(0, i); |
| 218 | |
| 219 | *to = 0.0f; |
| 220 | for (k=0; k<m_nRows; k++) { |
| 221 | *to += row[k] * (*from); |
| 222 | from += m_nCols; |
| 223 | } |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | return pNew; |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | ************************************************************************** |
| 232 | * Name: CIccMatrixMath::VectorScale |
| 233 | * |
| 234 | * Purpose: |
| 235 | * Multiplies each row by values of vector passed in |
| 236 | ************************************************************************** |
| 237 | */ |
| 238 | void CIccMatrixMath::VectorScale(const icFloatNumber *vec) |
| 239 | { |
| 240 | int i, j; |
| 241 | for (j=0; j<m_nRows; j++) { |
| 242 | icFloatNumber *row = entry(j); |
| 243 | for (i=0; i<m_nCols; i++) { |
| 244 | row[i] *= vec[i]; |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | ************************************************************************** |
| 251 | * Name: CIccMatrixMath::Scale |
| 252 | * |
| 253 | * Purpose: |
| 254 | * Multiplies all values in matrix by a single scale factor |
| 255 | ************************************************************************** |
| 256 | */ |
| 257 | void CIccMatrixMath::Scale(icFloatNumber v) |
| 258 | { |
| 259 | int i, j; |
| 260 | for (j=0; j<m_nRows; j++) { |
| 261 | icFloatNumber *row = entry(j); |
| 262 | for (i=0; i<m_nCols; i++) { |
| 263 | row[i] *= v; |
| 264 | } |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | ************************************************************************** |
| 270 | * Name: CIccMatrixMath::Invert |
| 271 | * |
| 272 | * Purpose: |
| 273 | * Inverts the matrix |
| 274 | ************************************************************************** |
| 275 | */ |
| 276 | bool CIccMatrixMath::Invert() |
| 277 | { |
| 278 | if (m_nRows==3 && m_nCols==3) { |
| 279 | icMatrixInvert3x3(m_vals); |
| 280 | return true; |
| 281 | } |
| 282 | |
| 283 | return false; |
| 284 | } |
| 285 | |
| 286 | |
| 287 | |
| 288 | /** |
| 289 | ************************************************************************** |
| 290 | * Name: CIccMatrixMath::RowSum |
| 291 | * |
| 292 | * Purpose: |
| 293 | * Creates a new CIccMatrixMath step that is the result of multiplying the |
| 294 | * matrix of this object to the scale of another object. |
| 295 | ************************************************************************** |
| 296 | */ |
| 297 | icFloatNumber CIccMatrixMath::RowSum(icUInt16Number nRow) const |
| 298 | { |
| 299 | icFloatNumber rv=0; |
| 300 | int i; |
| 301 | const icFloatNumber *row = entry(nRow); |
| 302 | |
| 303 | for (i=0; i<m_nCols; i++) { |
| 304 | rv += row[i]; |
| 305 | } |
| 306 | |
| 307 | return rv; |
| 308 | } |
| 309 | |
| 310 | |
| 311 | |
| 312 | /** |
| 313 | ************************************************************************** |
| 314 | * Name: CIccMatrixMath::isIdentityMtx |
| 315 | * |
| 316 | * Purpose: |
| 317 | * Determines if applying this step will result in negligible change in data |
| 318 | ************************************************************************** |
| 319 | */ |
| 320 | bool CIccMatrixMath::isIdentityMtx() const |
| 321 | { |
| 322 | if (m_nCols!=m_nRows) |
| 323 | return false; |
| 324 | |
| 325 | int i, j; |
| 326 | for (j=0; j<m_nRows; j++) { |
| 327 | for (i=0; i<m_nCols; i++) { |
| 328 | icFloatNumber v = *(entry(j, i)); |
| 329 | if (i==j) { |
| 330 | if (v<1.0f-icNearRange0.000001 || v>1.0f+icNearRange0.000001) |
| 331 | return false; |
| 332 | } |
| 333 | else { |
| 334 | if (v<-icNearRange0.000001 ||v>icNearRange0.000001) |
| 335 | return false; |
| 336 | } |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | return true; |
| 341 | } |
| 342 | |
| 343 | |
| 344 | /** |
| 345 | ************************************************************************** |
| 346 | * Name: CIccMatrixMath::SetRange |
| 347 | * |
| 348 | * Purpose: |
| 349 | * Fills a matrix math object that can be used to convert |
| 350 | * spectral vectors from one spectral range to another using linear interpolation. |
| 351 | ************************************************************************** |
| 352 | */ |
| 353 | bool CIccMatrixMath::SetRange(const icSpectralRange &srcRange, const icSpectralRange &dstRange) |
| 354 | { |
| 355 | if (m_nRows != dstRange.steps || m_nCols != srcRange.steps) |
| 356 | return false; |
| 357 | |
| 358 | icUInt16Number d; |
| 359 | icFloatNumber srcStart = icF16toF(srcRange.start); |
| 360 | icFloatNumber srcEnd = icF16toF(srcRange.end); |
| 361 | icFloatNumber dstStart = icF16toF(dstRange.start); |
| 362 | icFloatNumber dstEnd = icF16toF(dstRange.end); |
| 363 | icFloatNumber srcDiff = srcEnd - srcStart; |
| 364 | icFloatNumber dstDiff = dstEnd - dstStart; |
Value stored to 'dstDiff' during its initialization is never read | |
| 365 | icFloatNumber srcScale = (srcEnd - srcStart) / (srcRange.steps-1); |
| 366 | icFloatNumber dstScale = (dstEnd - dstStart ) / (dstRange.steps - 1); |
| 367 | |
| 368 | icFloatNumber *data=entry(0); |
| 369 | memset(data, 0, dstRange.steps*srcRange.steps*sizeof(icFloatNumber)); |
| 370 | |
| 371 | for (d=0; d<dstRange.steps; d++) { |
| 372 | icFloatNumber *r = entry(d); |
| 373 | icFloatNumber w = dstStart + (icFloatNumber)d * dstScale; |
| 374 | if (w<srcStart) { |
| 375 | r[0] = 1.0; |
| 376 | } |
| 377 | else if (w>=srcEnd) { |
| 378 | r[srcRange.steps-1] = 1.0; |
| 379 | } |
| 380 | else { |
| 381 | icUInt16Number p = (icUInt16Number)((w - srcStart) / srcScale); |
| 382 | icFloatNumber p2 = (w - (srcStart + p * srcScale)) / srcScale; |
| 383 | |
| 384 | if (p2<0.00001) { |
| 385 | r[p] = 1.0f; |
| 386 | } |
| 387 | else if (p2>0.99999) { |
| 388 | r[p+1] = 1.0f; |
| 389 | } |
| 390 | else { |
| 391 | r[p] = 1.0f - p2; |
| 392 | r[p+1] = p2; |
| 393 | } |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | return true; |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | ************************************************************************** |
| 402 | * Name: CIccMatrixMath::rangeMap |
| 403 | * |
| 404 | * Purpose: |
| 405 | * This helper function generates a matrix math object that can be used to convert |
| 406 | * spectral vectors from one spectral range to another using linear interpolation. |
| 407 | ************************************************************************** |
| 408 | */ |
| 409 | CIccMatrixMath *CIccMatrixMath::rangeMap(const icSpectralRange &srcRange, const icSpectralRange &dstRange) |
| 410 | { |
| 411 | if (srcRange.steps != dstRange.steps || |
| 412 | srcRange.start != dstRange.start || |
| 413 | srcRange.end != dstRange.end) { |
| 414 | CIccMatrixMath *mtx = new CIccMatrixMath(dstRange.steps, srcRange.steps); |
| 415 | mtx->SetRange(srcRange, dstRange); |
| 416 | |
| 417 | return mtx; |
| 418 | } |
| 419 | |
| 420 | return NULL__null; |
| 421 | } |
| 422 | |
| 423 | #ifdef USEREFICCMAXNAMESPACE |
| 424 | } //namespace refIccMAX |
| 425 | #endif |