Defines three new functions
Declares three new functions Calls the three new functions Collects data for CIELab, sets the color_space for EYCC and CMYK
This commit is contained in:
szukw000
parent
75a33de3bc
commit
238f4419ab
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@ -305,6 +305,7 @@ void color_sycc_to_rgb(opj_image_t *img)
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}/* color_sycc_to_rgb() */
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#if defined(OPJ_HAVE_LIBLCMS2) || defined(OPJ_HAVE_LIBLCMS1)
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#ifdef OPJ_HAVE_LIBLCMS1
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/* Bob Friesenhahn proposed:*/
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#define cmsSigXYZData icSigXYZData
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@ -561,5 +562,253 @@ else
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#endif
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}/* color_apply_icc_profile() */
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#endif /* OPJ_HAVE_LIBLCMS2 || OPJ_HAVE_LIBLCMS1 */
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void color_apply_conversion(opj_image_t *image)
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{
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int *row;
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int enumcs, numcomps;
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image->color_space = OPJ_CLRSPC_SRGB;
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numcomps = image->numcomps;
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if(numcomps != 3)
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{
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fprintf(stderr,"%s:%d:\n\tnumcomps %d not handled. Quitting.\n",
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__FILE__,__LINE__,numcomps);
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return;
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}
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row = (int*)image->icc_profile_buf;
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enumcs = row[0];
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if(enumcs == 14)// CIELab
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{
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int *L, *a, *b, *red, *green, *blue;
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int *src0, *src1, *src2, *dst0, *dst1, *dst2;
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double rl, ol, ra, oa, rb, ob, prec0, prec1, prec2;
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double minL, maxL, mina, maxa, minb, maxb;
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unsigned int default_type;
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unsigned int i, max;
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cmsHPROFILE in, out;
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cmsHTRANSFORM transform;
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cmsUInt16Number RGB[3];
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cmsCIELab Lab;
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in = cmsCreateLab4Profile(NULL);
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out = cmsCreate_sRGBProfile();
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transform =
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cmsCreateTransform(in, TYPE_Lab_DBL, out, TYPE_RGB_16,
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INTENT_PERCEPTUAL, 0);
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#ifdef HAVE_LIBLCMS2
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cmsCloseProfile(in);
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cmsCloseProfile(out);
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#endif
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if(transform == NULL)
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{
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#ifdef HAVE_LIBLCMS1
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cmsCloseProfile(in);
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cmsCloseProfile(out);
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#endif
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return;
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}
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prec0 = (double)image->comps[0].prec;
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prec1 = (double)image->comps[1].prec;
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prec2 = (double)image->comps[2].prec;
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default_type = row[1];
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if(default_type == 0x44454600)// DEF : default
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{
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rl = 100; ra = 170; rb = 200;
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ol = 0;
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oa = pow(2, prec1 - 1);
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ob = pow(2, prec2 - 2) + pow(2, prec2 - 3);
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}
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else
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{
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rl = row[2]; ra = row[4]; rb = row[6];
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ol = row[3]; oa = row[5]; ob = row[7];
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}
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L = src0 = image->comps[0].data;
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a = src1 = image->comps[1].data;
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b = src2 = image->comps[2].data;
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max = image->comps[0].w * image->comps[0].h;
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red = dst0 = (int*)malloc(max * sizeof(int));
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green = dst1 = (int*)malloc(max * sizeof(int));
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blue = dst2 = (int*)malloc(max * sizeof(int));
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minL = -(rl * ol)/(pow(2, prec0)-1);
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maxL = minL + rl;
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mina = -(ra * oa)/(pow(2, prec1)-1);
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maxa = mina + ra;
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minb = -(rb * ob)/(pow(2, prec2)-1);
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maxb = minb + rb;
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for(i = 0; i < max; ++i)
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{
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Lab.L = minL + (double)(*L) * (maxL - minL)/(pow(2, prec0)-1); ++L;
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Lab.a = mina + (double)(*a) * (maxa - mina)/(pow(2, prec1)-1); ++a;
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Lab.b = minb + (double)(*b) * (maxb - minb)/(pow(2, prec2)-1); ++b;
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cmsDoTransform(transform, &Lab, RGB, 1);
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*red++ = RGB[0];
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*green++ = RGB[1];
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*blue++ = RGB[2];
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}
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cmsDeleteTransform(transform);
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#ifdef HAVE_LIBLCMS1
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cmsCloseProfile(in);
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cmsCloseProfile(out);
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#endif
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free(src0); image->comps[0].data = dst0;
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free(src1); image->comps[1].data = dst1;
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free(src2); image->comps[2].data = dst2;
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image->color_space = OPJ_CLRSPC_SRGB;
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image->comps[0].prec = 16;
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image->comps[1].prec = 16;
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image->comps[2].prec = 16;
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return;
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}
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fprintf(stderr,"%s:%d:\n\tenumCS %d not handled. Ignoring.\n",
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__FILE__,__LINE__, enumcs);
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}// color_apply_conversion()
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#endif // HAVE_LIBLCMS2 || HAVE_LIBLCMS1
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void color_cmyk_to_rgb(opj_image_t *image)
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{
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int *R, *G, *B, *dst0, *dst1, *dst2;
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int *sc, *sm, *sy, *sk, *src0, *src1, *src2, *src3;
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float C, M, Y, K;
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unsigned int w, h, max, prec, len, i;
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w = image->comps[0].w;
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h = image->comps[0].h;
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prec = image->comps[0].prec;
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if(prec != 8) return;
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if(image->numcomps != 4) return;
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max = w * h;
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len = max * sizeof(int);
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R = dst0 = (int*)malloc(len);
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G = dst1 = (int*)malloc(len);
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B = dst2 = (int*)malloc(len);
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sc = src0 = image->comps[0].data;
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sm = src1 = image->comps[1].data;
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sy = src2 = image->comps[2].data;
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sk = src3 = image->comps[3].data;
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for(i = 0; i < max; ++i)
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{
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// CMYK and CMY values from 0 to 1
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//
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C = (float)(*sc++)/(float)255.;
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M = (float)(*sm++)/(float)255;
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Y = (float)(*sy++)/(float)255;
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K = (float)(*sk++)/(float)255;
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// CMYK -> CMY
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//
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C = ( C * ( (float)1. - K ) + K );
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M = ( M * ( (float)1. - K ) + K );
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Y = ( Y * ( (float)1. - K ) + K );
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// CMY -> RGB : RGB results from 0 to 255
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//
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*R++ = (int)(unsigned char)(( (float)1. - C ) * (float)255.);
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*G++ = (int)(unsigned char)(( (float)1. - M ) * (float)255.);
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*B++ = (int)(unsigned char)(( (float)1. - Y ) * (float)255.);
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}
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free(src0); image->comps[0].data = dst0;
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free(src1); image->comps[1].data = dst1;
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free(src2); image->comps[2].data = dst2;
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free(src3); image->comps[3].data = NULL;
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image->numcomps = 3;
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image->color_space = OPJ_CLRSPC_SRGB;
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}// color_cmyk_to_rgb()
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//
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// This code has been adopted from sjpx_openjpeg.c of ghostscript
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//
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void color_esycc_to_rgb(opj_image_t *image)
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{
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int *s0, *s1, *s2, *src0, *src1, *src2;
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int *r, *g, *b, *dst0, *dst1, *dst2;
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int y, cb, cr, sign1, sign2, val;
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unsigned int w, h, max, i;
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int flip_value = (1 << (image->comps[0].prec-1));
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int max_value = (~(-1 << image->comps[0].prec));
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if(image->numcomps != 3) return;
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w = image->comps[0].w;
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h = image->comps[0].h;
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s0 = src0 = image->comps[0].data;
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s1 = src1 = image->comps[1].data;
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s2 = src2 = image->comps[2].data;
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sign1 = image->comps[1].sgnd;
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sign2 = image->comps[2].sgnd;
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max = w * h;
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r = dst0 = (int*)malloc(max * sizeof(int));
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g = dst1 = (int*)malloc(max * sizeof(int));
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b = dst2 = (int*)malloc(max * sizeof(int));
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for(i = 0; i < max; ++i)
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{
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y = *s0++; cb = *s1++; cr = *s2++;
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if( !sign1) cb -= flip_value;
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if( !sign2) cr -= flip_value;
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val = (int)
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((float)y - (float)0.0000368 * (float)cb
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+ (float)1.40199 * (float)cr + (float)0.5);
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if(val > max_value) val = max_value; else if(val < 0) val = 0;
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*r++ = val;
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val = (int)
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((float)1.0003 * (float)y - (float)0.344125 * (float)cb
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- (float)0.7141128 * (float)cr + (float)0.5);
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if(val > max_value) val = max_value; else if(val < 0) val = 0;
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*g++ = val;
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val = (int)
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((float)0.999823 * (float)y + (float)1.77204 * (float)cb
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- (float)0.000008 *(float)cr + (float)0.5);
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if(val > max_value) val = max_value; else if(val < 0) val = 0;
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*b++ = val;
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}
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free(src0); image->comps[0].data = dst0;
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free(src1); image->comps[1].data = dst1;
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free(src2); image->comps[2].data = dst2;
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image->numcomps = 3;
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image->color_space = OPJ_CLRSPC_SRGB;
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}// color_esycc_to_rgb()
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@ -40,5 +40,8 @@
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extern void color_sycc_to_rgb(opj_image_t *img);
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extern void color_apply_icc_profile(opj_image_t *image);
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extern void color_apply_conversion(opj_image_t *image);
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extern void color_cmyk_to_rgb(opj_image_t *image);
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extern void color_esycc_to_rgb(opj_image_t *image);
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#endif /* _OPJ_COLOR_H_ */
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@ -1349,10 +1349,6 @@ int main(int argc, char **argv)
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/* Close the byte stream */
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opj_stream_destroy(l_stream);
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if(image->color_space == OPJ_CLRSPC_SYCC){
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color_sycc_to_rgb(image); /* FIXME */
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}
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if( image->color_space != OPJ_CLRSPC_SYCC
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&& image->numcomps == 3 && image->comps[0].dx == image->comps[0].dy
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&& image->comps[1].dx != 1 )
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@ -1360,9 +1356,24 @@ int main(int argc, char **argv)
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else if (image->numcomps <= 2)
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image->color_space = OPJ_CLRSPC_GRAY;
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if(image->color_space == OPJ_CLRSPC_SYCC){
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color_sycc_to_rgb(image);
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}
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else
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if(image->color_space == OPJ_CLRSPC_CMYK){
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color_cmyk_to_rgb(image);
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}
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else
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if(image->color_space == OPJ_CLRSPC_EYCC){
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color_esycc_to_rgb(image);
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}
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if(image->icc_profile_buf) {
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#if defined(OPJ_HAVE_LIBLCMS1) || defined(OPJ_HAVE_LIBLCMS2)
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color_apply_icc_profile(image); /* FIXME */
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if(image->icc_profile_len)
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color_apply_icc_profile(image);
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else
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color_apply_conversion(image);
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#endif
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free(image->icc_profile_buf);
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image->icc_profile_buf = NULL; image->icc_profile_len = 0;
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@ -849,6 +849,8 @@ static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
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opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].cn, nr_channels);
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return OPJ_FALSE;
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}
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if (info[i].asoc > 65534) continue;
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if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
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opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].asoc - 1, nr_channels);
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return OPJ_FALSE;
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@ -966,7 +968,7 @@ static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
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old_comps = image->comps;
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new_comps = (opj_image_comp_t*)
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opj_malloc(nr_channels * sizeof(opj_image_comp_t));
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opj_calloc(nr_channels, sizeof(opj_image_comp_t));
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if (!new_comps) {
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/* FIXME no error code for opj_jp2_apply_pclr */
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/* FIXME event manager error callback */
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@ -1312,11 +1314,11 @@ static OPJ_BOOL opj_jp2_read_cdef( opj_jp2_t * jp2,
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return OPJ_FALSE;
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}
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cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
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cdef_info = (opj_jp2_cdef_info_t*) opj_calloc(1, l_value * sizeof(opj_jp2_cdef_info_t));
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if (!cdef_info)
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return OPJ_FALSE;
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jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
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jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_calloc(1, sizeof(opj_jp2_cdef_t));
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if(!jp2->color.jp2_cdef)
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{
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opj_free(cdef_info);
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@ -1390,6 +1392,50 @@ static OPJ_BOOL opj_jp2_read_colr( opj_jp2_t *jp2,
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opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
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p_colr_header_data += 4;
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if(jp2->enumcs == 14)/* CIELab */
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{
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OPJ_UINT32 *cielab;
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OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
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cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
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cielab[0] = 14; /* enumcs */
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if(p_colr_header_size == 7)/* default values */
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{
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rl = ra = rb = ol = oa = ob = 0;
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il = 0x00443530; /* D50 */
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cielab[1] = 0x44454600;/* DEF */
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}
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else
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if(p_colr_header_size == 35)
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{
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opj_read_bytes(p_colr_header_data, &rl, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &ol, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &ra, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &oa, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &rb, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &ob, 4);
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p_colr_header_data += 4;
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opj_read_bytes(p_colr_header_data, &il, 4);
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p_colr_header_data += 4;
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cielab[1] = 0;
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}
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cielab[2] = rl; cielab[4] = ra; cielab[6] = rb;
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cielab[3] = ol; cielab[5] = oa; cielab[7] = ob;
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cielab[8] = il;
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jp2->color.icc_profile_buf = (unsigned char*)cielab;
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jp2->color.icc_profile_len = 0;
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}
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jp2->color.jp2_has_colr = 1;
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}
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else if (jp2->meth == 2) {
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@ -1452,6 +1498,9 @@ OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
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p_image->color_space = OPJ_CLRSPC_SYCC;
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else if (jp2->enumcs == 24)
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p_image->color_space = OPJ_CLRSPC_EYCC;
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else
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if (jp2->enumcs == 12)
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p_image->color_space = OPJ_CLRSPC_CMYK;
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else
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p_image->color_space = OPJ_CLRSPC_UNKNOWN;
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@ -1840,14 +1889,14 @@ OPJ_BOOL opj_jp2_setup_encoder( opj_jp2_t *jp2,
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opj_event_msg(p_manager, EVT_WARNING, "Multiple alpha channels specified. No cdef box will be created.\n");
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}
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if (alpha_count == 1U) { /* if here, we know what we can do */
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jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
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jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_calloc(1, sizeof(opj_jp2_cdef_t));
|
||||
if(!jp2->color.jp2_cdef) {
|
||||
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to setup the JP2 encoder\n");
|
||||
return OPJ_FALSE;
|
||||
}
|
||||
/* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
|
||||
/* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
|
||||
jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(image->numcomps * sizeof(opj_jp2_cdef_info_t));
|
||||
jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_calloc(1, image->numcomps * sizeof(opj_jp2_cdef_info_t));
|
||||
if (!jp2->color.jp2_cdef->info) {
|
||||
/* memory will be freed by opj_jp2_destroy */
|
||||
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to setup the JP2 encoder\n");
|
||||
|
|
@ -2767,6 +2816,12 @@ OPJ_BOOL opj_jp2_get_tile( opj_jp2_t *p_jp2,
|
|||
p_image->color_space = OPJ_CLRSPC_GRAY;
|
||||
else if (p_jp2->enumcs == 18)
|
||||
p_image->color_space = OPJ_CLRSPC_SYCC;
|
||||
else
|
||||
if (p_jp2->enumcs == 24)
|
||||
p_image->color_space = OPJ_CLRSPC_EYCC;
|
||||
else
|
||||
if (p_jp2->enumcs == 12)
|
||||
p_image->color_space = OPJ_CLRSPC_CMYK;
|
||||
else
|
||||
p_image->color_space = OPJ_CLRSPC_UNKNOWN;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue