From 22f703cab05b7cd368f4de9e03991b7664dc5022 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 1 Sep 2014 13:56:46 +0200 Subject: Initial import of argyll version 1.5.1-8 --- xicc/fbview.c | 312 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 312 insertions(+) create mode 100644 xicc/fbview.c (limited to 'xicc/fbview.c') diff --git a/xicc/fbview.c b/xicc/fbview.c new file mode 100644 index 0000000..53da99e --- /dev/null +++ b/xicc/fbview.c @@ -0,0 +1,312 @@ + +/* + * International Color Consortium Format Library (icclib) + * View the gamut clipping implemented by the bwd profile. + * + * Author: Graeme W. Gill + * Date: 2000/12/8 + * Version: 1.23 + * + * Copyright 2000 Graeme W. Gill + * Please refer to License.txt file for details. + */ + +/* TTBD: + * + */ + +#include +#include +#include +#include +#include +#include +#include "copyright.h" +#include "aconfig.h" +#include "numlib.h" +#include "icc.h" + +#define TRES 43 + +/* - - - - - - - - - - - - - */ + +/* Return maximum difference */ +double maxdiff(double in1[3], double in2[3]) { + double tt, rv = 0.0; + if ((tt = fabs(in1[0] - in2[0])) > rv) + rv = tt; + if ((tt = fabs(in1[1] - in2[1])) > rv) + rv = tt; + if ((tt = fabs(in1[2] - in2[2])) > rv) + rv = tt; + return rv; +} + +/* Return absolute difference */ +double absdiff(double in1[3], double in2[3]) { + double tt, rv = 0.0; + tt = in1[0] - in2[0]; + rv += tt * tt; + tt = in1[1] - in2[1]; + rv += tt * tt; + tt = in1[2] - in2[2]; + rv += tt * tt; + return sqrt(rv); +} + +/* ---------------------------------------- */ + +void usage(void) { + fprintf(stderr,"View bwd table clipping of an ICC file, , Version %s\n",ARGYLL_VERSION_STR); + fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); + fprintf(stderr,"usage: fbtest [-v] infile\n"); + fprintf(stderr," -v verbose\n"); + exit(1); +} + +int +main( + int argc, + char *argv[] +) { + int fa,nfa; /* argument we're looking at */ + int verb = 0; + int doaxes = 0; + char in_name[100]; + char *xl, out_name[100]; + icmFile *rd_fp; + icc *rd_icco; + int rv = 0; + icColorSpaceSignature ins, outs; /* Type of input and output spaces */ + + /* Check variables */ + int co[4]; + double in[4], out[4], check[4], temp[4]; + + error_program = argv[0]; + + if (argc < 2) + usage(); + + /* Process the arguments */ + for(fa = 1;fa < argc;fa++) { + nfa = fa; /* skip to nfa if next argument is used */ + if (argv[fa][0] == '-') { /* Look for any flags */ + char *na = NULL; /* next argument after flag, null if none */ + + if (argv[fa][2] != '\000') + na = &argv[fa][2]; /* next is directly after flag */ + else { + if ((fa+1) < argc) { + if (argv[fa+1][0] != '-') { + nfa = fa + 1; + na = argv[nfa]; /* next is seperate non-flag argument */ + } + } + } + + /* Verbosity */ + if (argv[fa][1] == 'v' || argv[fa][1] == 'V') { + verb = 1; + } + else if (argv[fa][1] == '?') + usage(); + else + usage(); + } + else + break; + } + + if (fa >= argc || argv[fa][0] == '-') usage(); + strcpy(in_name,argv[fa]); + + strcpy(out_name, in_name); + if ((xl = strrchr(out_name, '.')) == NULL) /* Figure where extention is */ + xl = out_name + strlen(out_name); + strcpy(xl,".wrl"); + + /* Open up the file for reading */ + if ((rd_fp = new_icmFileStd_name(in_name,"r")) == NULL) + error ("Read: Can't open file '%s'",in_name); + + if ((rd_icco = new_icc()) == NULL) + error ("Read: Creation of ICC object failed"); + + /* Read the header and tag list */ + if ((rv = rd_icco->read(rd_icco,rd_fp,0)) != 0) + error ("Read: %d, %s",rv,rd_icco->err); + + /* Run the target Lab values through the bwd and fwd tables, */ + /* to compute the overall error. */ + { +#define GAMUT_LCENT 50.0 + double merr = 0.0; + double aerr = 0.0; + double nsamps = 0.0; + icmLuBase *luo1, *luo2; + FILE *wrl; + struct { + double x, y, z; + double wx, wy, wz; + double r, g, b; + } axes[5] = { + { 0, 0, 50-GAMUT_LCENT, 2, 2, 100, .7, .7, .7 }, /* L axis */ + { 50, 0, 0-GAMUT_LCENT, 100, 2, 2, 1, 0, 0 }, /* +a (red) axis */ + { 0, -50, 0-GAMUT_LCENT, 2, 100, 2, 0, 0, 1 }, /* -b (blue) axis */ + { -50, 0, 0-GAMUT_LCENT, 100, 2, 2, 0, 1, 0 }, /* -a (green) axis */ + { 0, 50, 0-GAMUT_LCENT, 2, 100, 2, 1, 1, 0 }, /* +b (yellow) axis */ + }; + int i, j; + + + /* Get a Device to PCS conversion object */ + if ((luo1 = rd_icco->get_luobj(rd_icco, icmFwd, icAbsoluteColorimetric, icSigLabData, icmLuOrdNorm)) == NULL) { + if ((luo1 = rd_icco->get_luobj(rd_icco, icmFwd, icmDefaultIntent, icSigLabData, icmLuOrdNorm)) == NULL) + error ("%d, %s",rd_icco->errc, rd_icco->err); + } + /* Get details of conversion */ + luo1->spaces(luo1, &ins, NULL, &outs, NULL, NULL, NULL, NULL, NULL, NULL); + + if (ins != icSigCmykData) { + error("Expecting CMYK device"); + } + + /* Get a PCS to Device conversion object */ + if ((luo2 = rd_icco->get_luobj(rd_icco, icmBwd, icAbsoluteColorimetric, + icSigLabData, icmLuOrdNorm)) == NULL) { + if ((luo2 = rd_icco->get_luobj(rd_icco, icmBwd, icmDefaultIntent, + icSigLabData, icmLuOrdNorm)) == NULL) + error ("%d, %s",rd_icco->errc, rd_icco->err); + } + + if ((wrl = fopen(out_name,"w")) == NULL) { + fprintf(stderr,"Error opening output file '%s'\n",out_name); + return 2; + } + + /* Spit out a VRML 2 Object surface of gamut */ + + fprintf(wrl,"#VRML V2.0 utf8\n"); + fprintf(wrl,"\n"); + fprintf(wrl,"# Created by the Argyll CMS\n"); + fprintf(wrl,"Transform {\n"); + fprintf(wrl,"children [\n"); + fprintf(wrl," NavigationInfo {\n"); + fprintf(wrl," type \"EXAMINE\" # It's an object we examine\n"); + fprintf(wrl," } # We'll add our own light\n"); + fprintf(wrl,"\n"); + fprintf(wrl," DirectionalLight {\n"); + fprintf(wrl," direction 0 0 -1 # Light illuminating the scene\n"); + fprintf(wrl," direction 0 -1 0 # Light illuminating the scene\n"); + fprintf(wrl," }\n"); + fprintf(wrl,"\n"); + fprintf(wrl," Viewpoint {\n"); + fprintf(wrl," position 0 0 340 # Position we view from\n"); + fprintf(wrl," }\n"); + fprintf(wrl,"\n"); + if (doaxes != 0) { + fprintf(wrl,"# Lab axes as boxes:\n"); + for (i = 0; i < 5; i++) { + fprintf(wrl,"Transform { translation %f %f %f\n", axes[i].x, axes[i].y, axes[i].z); + fprintf(wrl,"\tchildren [\n"); + fprintf(wrl,"\t\tShape{\n"); + fprintf(wrl,"\t\t\tgeometry Box { size %f %f %f }\n", + axes[i].wx, axes[i].wy, axes[i].wz); + fprintf(wrl,"\t\t\tappearance Appearance { material Material "); + fprintf(wrl,"{ diffuseColor %f %f %f} }\n", axes[i].r, axes[i].g, axes[i].b); + fprintf(wrl,"\t\t}\n"); + fprintf(wrl,"\t]\n"); + fprintf(wrl,"}\n"); + } + fprintf(wrl,"\n"); + } + + fprintf(wrl,"\n"); + fprintf(wrl,"Shape {\n"); + fprintf(wrl," geometry IndexedLineSet { \n"); + fprintf(wrl," coord Coordinate { \n"); + fprintf(wrl," point [\n"); + + i = 0; +// for (co[0] = 0; co[0] < TRES; co[0]++) { + for (co[1] = 0; co[1] < TRES; co[1]++) { + for (co[2] = 0; co[2] < TRES; co[2]++) { + int rv1, rv2; + double mxd, absd; + +// temp[0] = co[0]/(TRES-1.0); + temp[1] = co[1]/(TRES-1.0); + temp[2] = co[2]/(TRES-1.0); + +// in[0] = temp[0] * 100.0; + in[0] = 0.0; + in[1] = 200.0 * temp[1] -100.0; + in[2] = 200.0 * temp[2] -100.0; + + + /* PCS -> Device */ + if ((rv2 = luo2->lookup(luo2, out, in)) > 1) + error ("%d, %s",rd_icco->errc,rd_icco->err); + + /* Device -> PCS */ + if ((rv1 = luo1->lookup(luo1, check, out)) > 1) + error ("%d, %s",rd_icco->errc,rd_icco->err); + + if (verb) { + printf("%f %f %f -> %f %f %f %f -> %f %f %f [%f]\n", + in[0],in[1],in[2],out[0],out[1],out[2],out[3],check[0],check[1],check[2], + maxdiff(check, in)); + } + + /* Check the result */ + mxd = maxdiff(check, in); + if (mxd > merr) + merr = mxd; + + nsamps++; + absd = absdiff(check, in); + aerr += absd; + + if (absd > 3.0) { + fprintf(wrl,"%f %f %f,\n",in[1], in[2], in[0]-GAMUT_LCENT); + fprintf(wrl,"%f %f %f,\n",check[1], check[2], check[0]-GAMUT_LCENT); + i++; + } + } + } +// } + + fprintf(wrl," ]\n"); + fprintf(wrl," }\n"); + fprintf(wrl," coordIndex [\n"); + + for (j = 0; j < i; j++) { + fprintf(wrl,"%d, %d, -1,\n", j * 2, j * 2 + 1); + } + fprintf(wrl," ]\n"); + fprintf(wrl," }\n"); + fprintf(wrl,"} # end shape\n"); + + fprintf(wrl,"\n"); + fprintf(wrl," ] # end of children for world\n"); + fprintf(wrl,"}\n"); + + if (fclose(wrl) != 0) { + fprintf(stderr,"Error closing output file '%s'\n",out_name); + return 2; + } + + printf("bwd to fwd check complete, peak err = %f, avg err = %f\n",merr,aerr/nsamps); + + /* Done with lookup object */ + luo1->del(luo1); + luo2->del(luo2); + } + + rd_icco->del(rd_icco); + rd_fp->del(rd_fp); + + return 0; +} + -- cgit v1.2.3