/* * 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) 2002-2014, Universite catholique de Louvain (UCL), Belgium * Copyright (c) 2002-2014, Professor Benoit Macq * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2003-2007, Francois-Olivier Devaux * Copyright (c) 2003-2014, Antonin Descampe * Copyright (c) 2005, Herve Drolon, FreeImage Team * 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 #include #include #include #include #include "opj_apps_config.h" #include "openjpeg.h" #include "color.h" #ifdef OPJ_HAVE_LIBLCMS2 #include #endif #ifdef OPJ_HAVE_LIBLCMS1 #include #endif #ifdef OPJ_USE_LEGACY #define OPJ_CLRSPC_GRAY CLRSPC_GRAY #define OPJ_CLRSPC_SRGB CLRSPC_SRGB #endif /*-------------------------------------------------------- Matrix for sYCC, Amendment 1 to IEC 61966-2-1 Y : 0.299 0.587 0.114 :R Cb: -0.1687 -0.3312 0.5 :G Cr: 0.5 -0.4187 -0.0812 :B Inverse: R: 1 -3.68213e-05 1.40199 :Y G: 1.00003 -0.344125 -0.714128 :Cb - 2^(prec - 1) B: 0.999823 1.77204 -8.04142e-06 :Cr - 2^(prec - 1) -----------------------------------------------------------*/ static void sycc_to_rgb(int offset, int upb, int y, int cb, int cr, int *out_r, int *out_g, int *out_b) { int r, g, b; cb -= offset; cr -= offset; r = y + (int)(1.402 * (float)cr); if (r < 0) { r = 0; } else if (r > upb) { r = upb; } *out_r = r; g = y - (int)(0.344 * (float)cb + 0.714 * (float)cr); if (g < 0) { g = 0; } else if (g > upb) { g = upb; } *out_g = g; b = y + (int)(1.772 * (float)cb); if (b < 0) { b = 0; } else if (b > upb) { b = upb; } *out_b = b; } static void sycc444_to_rgb(opj_image_t *img) { int *d0, *d1, *d2, *r, *g, *b; const int *y, *cb, *cr; size_t maxw, maxh, max, i; int offset, upb; upb = (int)img->comps[0].prec; offset = 1 << (upb - 1); upb = (1 << upb) - 1; maxw = (size_t)img->comps[0].w; maxh = (size_t)img->comps[0].h; max = maxw * maxh; y = img->comps[0].data; cb = img->comps[1].data; cr = img->comps[2].data; d0 = r = (int*)opj_image_data_alloc(sizeof(int) * max); d1 = g = (int*)opj_image_data_alloc(sizeof(int) * max); d2 = b = (int*)opj_image_data_alloc(sizeof(int) * max); if (r == NULL || g == NULL || b == NULL) { goto fails; } for (i = 0U; i < max; ++i) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++cb; ++cr; ++r; ++g; ++b; } opj_image_data_free(img->comps[0].data); img->comps[0].data = d0; opj_image_data_free(img->comps[1].data); img->comps[1].data = d1; opj_image_data_free(img->comps[2].data); img->comps[2].data = d2; img->color_space = OPJ_CLRSPC_SRGB; return; fails: opj_image_data_free(r); opj_image_data_free(g); opj_image_data_free(b); }/* sycc444_to_rgb() */ static void sycc422_to_rgb(opj_image_t *img) { int *d0, *d1, *d2, *r, *g, *b; const int *y, *cb, *cr; size_t maxw, maxh, max, offx, loopmaxw; int offset, upb; size_t i; upb = (int)img->comps[0].prec; offset = 1 << (upb - 1); upb = (1 << upb) - 1; maxw = (size_t)img->comps[0].w; maxh = (size_t)img->comps[0].h; max = maxw * maxh; y = img->comps[0].data; cb = img->comps[1].data; cr = img->comps[2].data; d0 = r = (int*)opj_image_data_alloc(sizeof(int) * max); d1 = g = (int*)opj_image_data_alloc(sizeof(int) * max); d2 = b = (int*)opj_image_data_alloc(sizeof(int) * max); if (r == NULL || g == NULL || b == NULL) { goto fails; } /* if img->x0 is odd, then first column shall use Cb/Cr = 0 */ offx = img->x0 & 1U; loopmaxw = maxw - offx; for (i = 0U; i < maxh; ++i) { size_t j; if (offx > 0U) { sycc_to_rgb(offset, upb, *y, 0, 0, r, g, b); ++y; ++r; ++g; ++b; } for (j = 0U; j < (loopmaxw & ~(size_t)1U); j += 2U) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; ++cb; ++cr; } if (j < loopmaxw) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; ++cb; ++cr; } } opj_image_data_free(img->comps[0].data); img->comps[0].data = d0; opj_image_data_free(img->comps[1].data); img->comps[1].data = d1; opj_image_data_free(img->comps[2].data); img->comps[2].data = d2; img->comps[1].w = img->comps[2].w = img->comps[0].w; img->comps[1].h = img->comps[2].h = img->comps[0].h; img->comps[1].dx = img->comps[2].dx = img->comps[0].dx; img->comps[1].dy = img->comps[2].dy = img->comps[0].dy; img->color_space = OPJ_CLRSPC_SRGB; return; fails: opj_image_data_free(r); opj_image_data_free(g); opj_image_data_free(b); }/* sycc422_to_rgb() */ static void sycc420_to_rgb(opj_image_t *img) { int *d0, *d1, *d2, *r, *g, *b, *nr, *ng, *nb; const int *y, *cb, *cr, *ny; size_t maxw, maxh, max, offx, loopmaxw, offy, loopmaxh; int offset, upb; size_t i; upb = (int)img->comps[0].prec; offset = 1 << (upb - 1); upb = (1 << upb) - 1; maxw = (size_t)img->comps[0].w; maxh = (size_t)img->comps[0].h; max = maxw * maxh; y = img->comps[0].data; cb = img->comps[1].data; cr = img->comps[2].data; d0 = r = (int*)opj_image_data_alloc(sizeof(int) * max); d1 = g = (int*)opj_image_data_alloc(sizeof(int) * max); d2 = b = (int*)opj_image_data_alloc(sizeof(int) * max); if (r == NULL || g == NULL || b == NULL) { goto fails; } /* if img->x0 is odd, then first column shall use Cb/Cr = 0 */ offx = img->x0 & 1U; loopmaxw = maxw - offx; /* if img->y0 is odd, then first line shall use Cb/Cr = 0 */ offy = img->y0 & 1U; loopmaxh = maxh - offy; if (offy > 0U) { size_t j; for (j = 0; j < maxw; ++j) { sycc_to_rgb(offset, upb, *y, 0, 0, r, g, b); ++y; ++r; ++g; ++b; } } for (i = 0U; i < (loopmaxh & ~(size_t)1U); i += 2U) { size_t j; ny = y + maxw; nr = r + maxw; ng = g + maxw; nb = b + maxw; if (offx > 0U) { sycc_to_rgb(offset, upb, *y, 0, 0, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); ++ny; ++nr; ++ng; ++nb; } for (j = 0; j < (loopmaxw & ~(size_t)1U); j += 2U) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); ++ny; ++nr; ++ng; ++nb; sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); ++ny; ++nr; ++ng; ++nb; ++cb; ++cr; } if (j < loopmaxw) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); ++ny; ++nr; ++ng; ++nb; ++cb; ++cr; } y += maxw; r += maxw; g += maxw; b += maxw; } if (i < loopmaxh) { size_t j; for (j = 0U; j < (maxw & ~(size_t)1U); j += 2U) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); ++y; ++r; ++g; ++b; ++cb; ++cr; } if (j < maxw) { sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); } } opj_image_data_free(img->comps[0].data); img->comps[0].data = d0; opj_image_data_free(img->comps[1].data); img->comps[1].data = d1; opj_image_data_free(img->comps[2].data); img->comps[2].data = d2; img->comps[1].w = img->comps[2].w = img->comps[0].w; img->comps[1].h = img->comps[2].h = img->comps[0].h; img->comps[1].dx = img->comps[2].dx = img->comps[0].dx; img->comps[1].dy = img->comps[2].dy = img->comps[0].dy; img->color_space = OPJ_CLRSPC_SRGB; return; fails: opj_image_data_free(r); opj_image_data_free(g); opj_image_data_free(b); }/* sycc420_to_rgb() */ void color_sycc_to_rgb(opj_image_t *img) { if (img->numcomps < 3) { img->color_space = OPJ_CLRSPC_GRAY; return; } if ((img->comps[0].dx == 1) && (img->comps[1].dx == 2) && (img->comps[2].dx == 2) && (img->comps[0].dy == 1) && (img->comps[1].dy == 2) && (img->comps[2].dy == 2)) { /* horizontal and vertical sub-sample */ sycc420_to_rgb(img); } else if ((img->comps[0].dx == 1) && (img->comps[1].dx == 2) && (img->comps[2].dx == 2) && (img->comps[0].dy == 1) && (img->comps[1].dy == 1) && (img->comps[2].dy == 1)) { /* horizontal sub-sample only */ sycc422_to_rgb(img); } else if ((img->comps[0].dx == 1) && (img->comps[1].dx == 1) && (img->comps[2].dx == 1) && (img->comps[0].dy == 1) && (img->comps[1].dy == 1) && (img->comps[2].dy == 1)) { /* no sub-sample */ sycc444_to_rgb(img); } else { fprintf(stderr, "%s:%d:color_sycc_to_rgb\n\tCAN NOT CONVERT\n", __FILE__, __LINE__); return; } }/* color_sycc_to_rgb() */ #if defined(OPJ_HAVE_LIBLCMS2) || defined(OPJ_HAVE_LIBLCMS1) #ifdef OPJ_HAVE_LIBLCMS1 /* Bob Friesenhahn proposed:*/ #define cmsSigXYZData icSigXYZData #define cmsSigLabData icSigLabData #define cmsSigCmykData icSigCmykData #define cmsSigYCbCrData icSigYCbCrData #define cmsSigLuvData icSigLuvData #define cmsSigGrayData icSigGrayData #define cmsSigRgbData icSigRgbData #define cmsUInt32Number DWORD #define cmsColorSpaceSignature icColorSpaceSignature #define cmsGetHeaderRenderingIntent cmsTakeRenderingIntent #endif /* OPJ_HAVE_LIBLCMS1 */ /*#define DEBUG_PROFILE*/ void color_apply_icc_profile(opj_image_t *image) { cmsHPROFILE in_prof, out_prof; cmsHTRANSFORM transform; cmsColorSpaceSignature in_space, out_space; cmsUInt32Number intent, in_type, out_type; int *r, *g, *b; size_t nr_samples, i, max, max_w, max_h; int prec, ok = 0; OPJ_COLOR_SPACE new_space; in_prof = cmsOpenProfileFromMem(image->icc_profile_buf, image->icc_profile_len); #ifdef DEBUG_PROFILE FILE *icm = fopen("debug.icm", "wb"); fwrite(image->icc_profile_buf, 1, image->icc_profile_len, icm); fclose(icm); #endif if (in_prof == NULL) { return; } in_space = cmsGetPCS(in_prof); out_space = cmsGetColorSpace(in_prof); intent = cmsGetHeaderRenderingIntent(in_prof); max_w = image->comps[0].w; max_h = image->comps[0].h; prec = (int)image->comps[0].prec; if (out_space == cmsSigRgbData) { /* enumCS 16 */ if (prec <= 8) { in_type = TYPE_RGB_8; out_type = TYPE_RGB_8; } else { in_type = TYPE_RGB_16; out_type = TYPE_RGB_16; } out_prof = cmsCreate_sRGBProfile(); new_space = OPJ_CLRSPC_SRGB; } else if (out_space == cmsSigGrayData) { /* enumCS 17 */ in_type = TYPE_GRAY_8; out_type = TYPE_RGB_8; out_prof = cmsCreate_sRGBProfile(); new_space = OPJ_CLRSPC_SRGB; } else if (out_space == cmsSigYCbCrData) { /* enumCS 18 */ in_type = TYPE_YCbCr_16; out_type = TYPE_RGB_16; out_prof = cmsCreate_sRGBProfile(); new_space = OPJ_CLRSPC_SRGB; } else { #ifdef DEBUG_PROFILE fprintf(stderr, "%s:%d: color_apply_icc_profile\n\tICC Profile has unknown " "output colorspace(%#x)(%c%c%c%c)\n\tICC Profile ignored.\n", __FILE__, __LINE__, out_space, (out_space >> 24) & 0xff, (out_space >> 16) & 0xff, (out_space >> 8) & 0xff, out_space & 0xff); #endif cmsCloseProfile(in_prof); return; } if (out_prof == NULL) { cmsCloseProfile(in_prof); return; } #ifdef DEBUG_PROFILE fprintf(stderr, "%s:%d:color_apply_icc_profile\n\tchannels(%d) prec(%d) w(%d) h(%d)" "\n\tprofile: in(%p) out(%p)\n", __FILE__, __LINE__, image->numcomps, prec, max_w, max_h, (void*)in_prof, (void*)out_prof); fprintf(stderr, "\trender_intent (%u)\n\t" "color_space: in(%#x)(%c%c%c%c) out:(%#x)(%c%c%c%c)\n\t" " type: in(%u) out:(%u)\n", intent, in_space, (in_space >> 24) & 0xff, (in_space >> 16) & 0xff, (in_space >> 8) & 0xff, in_space & 0xff, out_space, (out_space >> 24) & 0xff, (out_space >> 16) & 0xff, (out_space >> 8) & 0xff, out_space & 0xff, in_type, out_type ); #else (void)prec; (void)in_space; #endif /* DEBUG_PROFILE */ transform = cmsCreateTransform(in_prof, in_type, out_prof, out_type, intent, 0); #ifdef OPJ_HAVE_LIBLCMS2 /* Possible for: LCMS_VERSION >= 2000 :*/ cmsCloseProfile(in_prof); cmsCloseProfile(out_prof); #endif if (transform == NULL) { #ifdef DEBUG_PROFILE fprintf(stderr, "%s:%d:color_apply_icc_profile\n\tcmsCreateTransform failed. " "ICC Profile ignored.\n", __FILE__, __LINE__); #endif #ifdef OPJ_HAVE_LIBLCMS1 cmsCloseProfile(in_prof); cmsCloseProfile(out_prof); #endif return; } if (image->numcomps > 2) { /* RGB, RGBA */ if (prec <= 8) { unsigned char *inbuf, *outbuf, *in, *out; max = max_w * max_h; nr_samples = (size_t)(max * 3U * sizeof(unsigned char)); in = inbuf = (unsigned char*)opj_image_data_alloc(nr_samples); out = outbuf = (unsigned char*)opj_image_data_alloc(nr_samples); if (inbuf == NULL || outbuf == NULL) { goto fails0; } r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0U; i < max; ++i) { *in++ = (unsigned char) * r++; *in++ = (unsigned char) * g++; *in++ = (unsigned char) * b++; } cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0U; i < max; ++i) { *r++ = (int) * out++; *g++ = (int) * out++; *b++ = (int) * out++; } ok = 1; fails0: opj_image_data_free(inbuf); opj_image_data_free(outbuf); } else { /* prec > 8 */ unsigned short *inbuf, *outbuf, *in, *out; max = max_w * max_h; nr_samples = (size_t)(max * 3U * sizeof(unsigned short)); in = inbuf = (unsigned short*)opj_image_data_alloc(nr_samples); out = outbuf = (unsigned short*)opj_image_data_alloc(nr_samples); if (inbuf == NULL || outbuf == NULL) { goto fails1; } r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0U ; i < max; ++i) { *in++ = (unsigned short) * r++; *in++ = (unsigned short) * g++; *in++ = (unsigned short) * b++; } cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0; i < max; ++i) { *r++ = (int) * out++; *g++ = (int) * out++; *b++ = (int) * out++; } ok = 1; fails1: opj_image_data_free(inbuf); opj_image_data_free(outbuf); } } else { /* image->numcomps <= 2 : GRAY, GRAYA */ if (prec <= 8) { unsigned char *in, *inbuf, *out, *outbuf; opj_image_comp_t *new_comps; max = max_w * max_h; nr_samples = (size_t)(max * 3 * sizeof(unsigned char)); in = inbuf = (unsigned char*)opj_image_data_alloc(nr_samples); out = outbuf = (unsigned char*)opj_image_data_alloc(nr_samples); g = (int*)calloc((size_t)max, sizeof(int)); b = (int*)calloc((size_t)max, sizeof(int)); if (inbuf == NULL || outbuf == NULL || g == NULL || b == NULL) { goto fails2; } new_comps = (opj_image_comp_t*)realloc(image->comps, (image->numcomps + 2) * sizeof(opj_image_comp_t)); if (new_comps == NULL) { goto fails2; } image->comps = new_comps; if (image->numcomps == 2) { image->comps[3] = image->comps[1]; } image->comps[1] = image->comps[0]; image->comps[2] = image->comps[0]; image->comps[1].data = g; image->comps[2].data = b; image->numcomps += 2; r = image->comps[0].data; for (i = 0U; i < max; ++i) { *in++ = (unsigned char) * r++; } cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0U; i < max; ++i) { *r++ = (int) * out++; *g++ = (int) * out++; *b++ = (int) * out++; } r = g = b = NULL; ok = 1; fails2: opj_image_data_free(inbuf); opj_image_data_free(outbuf); opj_image_data_free(g); opj_image_data_free(b); } else { /* prec > 8 */ unsigned short *in, *inbuf, *out, *outbuf; opj_image_comp_t *new_comps; max = max_w * max_h; nr_samples = (size_t)(max * 3U * sizeof(unsigned short)); in = inbuf = (unsigned short*)opj_image_data_alloc(nr_samples); out = outbuf = (unsigned short*)opj_image_data_alloc(nr_samples); g = (int*)calloc((size_t)max, sizeof(int)); b = (int*)calloc((size_t)max, sizeof(int)); if (inbuf == NULL || outbuf == NULL || g == NULL || b == NULL) { goto fails3; } new_comps = (opj_image_comp_t*)realloc(image->comps, (image->numcomps + 2) * sizeof(opj_image_comp_t)); if (new_comps == NULL) { goto fails3; } image->comps = new_comps; if (image->numcomps == 2) { image->comps[3] = image->comps[1]; } image->comps[1] = image->comps[0]; image->comps[2] = image->comps[0]; image->comps[1].data = g; image->comps[2].data = b; image->numcomps += 2; r = image->comps[0].data; for (i = 0U; i < max; ++i) { *in++ = (unsigned short) * r++; } cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); r = image->comps[0].data; g = image->comps[1].data; b = image->comps[2].data; for (i = 0; i < max; ++i) { *r++ = (int) * out++; *g++ = (int) * out++; *b++ = (int) * out++; } r = g = b = NULL; ok = 1; fails3: opj_image_data_free(inbuf); opj_image_data_free(outbuf); opj_image_data_free(g); opj_image_data_free(b); } }/* if(image->numcomps > 2) */ cmsDeleteTransform(transform); #ifdef OPJ_HAVE_LIBLCMS1 cmsCloseProfile(in_prof); cmsCloseProfile(out_prof); #endif if (ok) { image->color_space = new_space; } }/* color_apply_icc_profile() */ static int are_comps_same_dimensions(opj_image_t * image) { unsigned int i; for (i = 1; i < image->numcomps; i++) { if (image->comps[0].dx != image->comps[i].dx || image->comps[0].dy != image->comps[i].dy) { return OPJ_FALSE; } } return OPJ_TRUE; } void color_cielab_to_rgb(opj_image_t *image) { int *row; int enumcs, numcomps; OPJ_COLOR_SPACE new_space; numcomps = (int)image->numcomps; if (numcomps != 3) { fprintf(stderr, "%s:%d:\n\tnumcomps %d not handled. Quitting.\n", __FILE__, __LINE__, numcomps); return; } if (!are_comps_same_dimensions(image)) { fprintf(stderr, "%s:%d:\n\tcomponents are not all of the same dimension. Quitting.\n", __FILE__, __LINE__); return; } row = (int*)image->icc_profile_buf; enumcs = row[0]; if (enumcs == 14) { /* CIELab */ int *L, *a, *b, *red, *green, *blue; int *src0, *src1, *src2, *dst0, *dst1, *dst2; double rl, ol, ra, oa, rb, ob, prec0, prec1, prec2; double minL, maxL, mina, maxa, minb, maxb; unsigned int default_type; unsigned int i, max; cmsHPROFILE in, out; cmsHTRANSFORM transform; cmsUInt16Number RGB[3]; cmsCIELab Lab; in = cmsCreateLab4Profile(NULL); if (in == NULL) { return; } out = cmsCreate_sRGBProfile(); if (out == NULL) { cmsCloseProfile(in); return; } transform = cmsCreateTransform(in, TYPE_Lab_DBL, out, TYPE_RGB_16, INTENT_PERCEPTUAL, 0); #ifdef OPJ_HAVE_LIBLCMS2 cmsCloseProfile(in); cmsCloseProfile(out); #endif if (transform == NULL) { #ifdef OPJ_HAVE_LIBLCMS1 cmsCloseProfile(in); cmsCloseProfile(out); #endif return; } new_space = OPJ_CLRSPC_SRGB; prec0 = (double)image->comps[0].prec; prec1 = (double)image->comps[1].prec; prec2 = (double)image->comps[2].prec; default_type = (unsigned int)row[1]; if (default_type == 0x44454600) { /* DEF : default */ rl = 100; ra = 170; rb = 200; ol = 0; oa = pow(2, prec1 - 1); ob = pow(2, prec2 - 2) + pow(2, prec2 - 3); } else { rl = row[2]; ra = row[4]; rb = row[6]; ol = row[3]; oa = row[5]; ob = row[7]; } L = src0 = image->comps[0].data; a = src1 = image->comps[1].data; b = src2 = image->comps[2].data; max = image->comps[0].w * image->comps[0].h; red = dst0 = (int*)opj_image_data_alloc(max * sizeof(int)); green = dst1 = (int*)opj_image_data_alloc(max * sizeof(int)); blue = dst2 = (int*)opj_image_data_alloc(max * sizeof(int)); if (red == NULL || green == NULL || blue == NULL) { goto fails; } minL = -(rl * ol) / (pow(2, prec0) - 1); maxL = minL + rl; mina = -(ra * oa) / (pow(2, prec1) - 1); maxa = mina + ra; minb = -(rb * ob) / (pow(2, prec2) - 1); maxb = minb + rb; for (i = 0; i < max; ++i) { Lab.L = minL + (double)(*L) * (maxL - minL) / (pow(2, prec0) - 1); ++L; Lab.a = mina + (double)(*a) * (maxa - mina) / (pow(2, prec1) - 1); ++a; Lab.b = minb + (double)(*b) * (maxb - minb) / (pow(2, prec2) - 1); ++b; cmsDoTransform(transform, &Lab, RGB, 1); *red++ = RGB[0]; *green++ = RGB[1]; *blue++ = RGB[2]; } cmsDeleteTransform(transform); #ifdef OPJ_HAVE_LIBLCMS1 cmsCloseProfile(in); cmsCloseProfile(out); #endif opj_image_data_free(src0); image->comps[0].data = dst0; opj_image_data_free(src1); image->comps[1].data = dst1; opj_image_data_free(src2); image->comps[2].data = dst2; image->color_space = new_space; image->comps[0].prec = 16; image->comps[1].prec = 16; image->comps[2].prec = 16; return; fails: cmsDeleteTransform(transform); #ifdef OPJ_HAVE_LIBLCMS1 cmsCloseProfile(in); cmsCloseProfile(out); #endif if (red) { opj_image_data_free(red); } if (green) { opj_image_data_free(green); } if (blue) { opj_image_data_free(blue); } return; } fprintf(stderr, "%s:%d:\n\tenumCS %d not handled. Ignoring.\n", __FILE__, __LINE__, enumcs); }/* color_cielab_to_rgb() */ #endif /* OPJ_HAVE_LIBLCMS2 || OPJ_HAVE_LIBLCMS1 */ void color_cmyk_to_rgb(opj_image_t *image) { float C, M, Y, K; float sC, sM, sY, sK; unsigned int w, h, max, i; w = image->comps[0].w; h = image->comps[0].h; if ( (image->numcomps < 4) || (image->comps[0].dx != image->comps[1].dx) || (image->comps[0].dx != image->comps[2].dx) || (image->comps[0].dx != image->comps[3].dx) || (image->comps[0].dy != image->comps[1].dy) || (image->comps[0].dy != image->comps[2].dy) || (image->comps[0].dy != image->comps[3].dy) ) { fprintf(stderr, "%s:%d:color_cmyk_to_rgb\n\tCAN NOT CONVERT\n", __FILE__, __LINE__); return; } max = w * h; sC = 1.0F / (float)((1 << image->comps[0].prec) - 1); sM = 1.0F / (float)((1 << image->comps[1].prec) - 1); sY = 1.0F / (float)((1 << image->comps[2].prec) - 1); sK = 1.0F / (float)((1 << image->comps[3].prec) - 1); for (i = 0; i < max; ++i) { /* CMYK values from 0 to 1 */ C = (float)(image->comps[0].data[i]) * sC; M = (float)(image->comps[1].data[i]) * sM; Y = (float)(image->comps[2].data[i]) * sY; K = (float)(image->comps[3].data[i]) * sK; /* Invert all CMYK values */ C = 1.0F - C; M = 1.0F - M; Y = 1.0F - Y; K = 1.0F - K; /* CMYK -> RGB : RGB results from 0 to 255 */ image->comps[0].data[i] = (int)(255.0F * C * K); /* R */ image->comps[1].data[i] = (int)(255.0F * M * K); /* G */ image->comps[2].data[i] = (int)(255.0F * Y * K); /* B */ } opj_image_data_free(image->comps[3].data); image->comps[3].data = NULL; image->comps[0].prec = 8; image->comps[1].prec = 8; image->comps[2].prec = 8; image->numcomps -= 1; image->color_space = OPJ_CLRSPC_SRGB; for (i = 3; i < image->numcomps; ++i) { memcpy(&(image->comps[i]), &(image->comps[i + 1]), sizeof(image->comps[i])); } }/* color_cmyk_to_rgb() */ /* * This code has been adopted from sjpx_openjpeg.c of ghostscript */ void color_esycc_to_rgb(opj_image_t *image) { int y, cb, cr, sign1, sign2, val; unsigned int w, h, max, i; int flip_value = (1 << (image->comps[0].prec - 1)); int max_value = (1 << image->comps[0].prec) - 1; if ( (image->numcomps < 3) || (image->comps[0].dx != image->comps[1].dx) || (image->comps[0].dx != image->comps[2].dx) || (image->comps[0].dy != image->comps[1].dy) || (image->comps[0].dy != image->comps[2].dy) ) { fprintf(stderr, "%s:%d:color_esycc_to_rgb\n\tCAN NOT CONVERT\n", __FILE__, __LINE__); return; } w = image->comps[0].w; h = image->comps[0].h; sign1 = (int)image->comps[1].sgnd; sign2 = (int)image->comps[2].sgnd; max = w * h; for (i = 0; i < max; ++i) { y = image->comps[0].data[i]; cb = image->comps[1].data[i]; cr = image->comps[2].data[i]; if (!sign1) { cb -= flip_value; } if (!sign2) { cr -= flip_value; } val = (int) ((float)y - (float)0.0000368 * (float)cb + (float)1.40199 * (float)cr + (float)0.5); if (val > max_value) { val = max_value; } else if (val < 0) { val = 0; } image->comps[0].data[i] = val; val = (int) ((float)1.0003 * (float)y - (float)0.344125 * (float)cb - (float)0.7141128 * (float)cr + (float)0.5); if (val > max_value) { val = max_value; } else if (val < 0) { val = 0; } image->comps[1].data[i] = val; val = (int) ((float)0.999823 * (float)y + (float)1.77204 * (float)cb - (float)0.000008 * (float)cr + (float)0.5); if (val > max_value) { val = max_value; } else if (val < 0) { val = 0; } image->comps[2].data[i] = val; } image->color_space = OPJ_CLRSPC_SRGB; }/* color_esycc_to_rgb() */