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-/**
- * Copyright © 2016 Mattias Andrée <maandree@kth.se>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "libcolour.h"
-
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-
-
-#ifndef SKIP_2CONVERT
-static int test_2convert(libcolour_colour_t* c1, libcolour_colour_t* c2, libcolour_colour_t* c3)
-{
- double ch1, ch2, ch3;
- if (libcolour_convert(c1, c2))
- return -1;
- if (libcolour_convert(c2, c3))
- return -1;
- if ((c1->model == LIBCOLOUR_CIELCHUV) &&
- !isnan(c1->cielchuv.h) && !isnan(c3->cielchuv.h) &&
- !isinf(c1->cielchuv.h) && !isinf(c3->cielchuv.h) &&
- (c3->cielchuv.h / c3->cielchuv.one_revolution > 0.99999))
- c3->cielchuv.h = 0;
- ch1 = c1->srgb.R - c3->srgb.R;
- ch2 = c1->srgb.G - c3->srgb.G;
- ch3 = c1->srgb.B - c3->srgb.B;
- ch1 *= ch1;
- ch2 *= ch2;
- ch3 *= ch3;
- switch (c1->model) {
- case LIBCOLOUR_CIEXYY:
- if (c1->ciexyy.Y == 0)
- ch1 = ch2 = 0;
- if (c1->ciexyy.y == 0)
- ch1 = ch2 = ch3 = 0;
- break;
- case LIBCOLOUR_CIEXYZ:
- if (c1->ciexyz.Y == 0)
- ch1 = ch3 = 0;
- break;
- case LIBCOLOUR_CIE1960UCS:
- if (c1->cie1960ucs.v == 0)
- ch1 = ch2 = ch3 = 0;
- if (c1->cie1960ucs.Y == 0)
- ch1 = ch2 = 0;
- break;
- case LIBCOLOUR_CIEUVW:
- if (c1->cieuvw.W == 0)
- ch1 = ch2 = 0;
- break;
- case LIBCOLOUR_CIELCHUV:
- if (c1->cielchuv.C == 0)
- ch1 = ch3 = 0;
- break;
- case LIBCOLOUR_CIELAB:
- if (c1->cielchuv.L == 0)
- ch2 = ch3 = 0;
- break;
- default:
- break;
- }
- if (ch1 > 0.000001 ||
- ch2 > 0.000001 ||
- ch3 > 0.000001)
- return 0;
- return 1;
-}
-
-
-static int test_2convert_11(libcolour_colour_t* c1, libcolour_model_t model)
-{
- libcolour_colour_t c2, c3;
- int r1, r2;
- c3 = *c1;
- c2.model = model;
- switch (model) {
- case LIBCOLOUR_RGB:
- c2.rgb.with_gamma = 0;
- if (libcolour_get_rgb_colour_space(&c2.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB) < 0)
- return -1;
- return test_2convert(c1, &c2, &c3);
- case LIBCOLOUR_SRGB:
- c2.srgb.with_gamma = 0;
- if (r1 = test_2convert(c1, &c2, &c3), r1 < 0)
- return -1;
- c2.srgb.with_gamma = 1;
- if (r2 = test_2convert(c1, &c2, &c3), r2 < 0)
- return -1;
- return r1 & r2;
- case LIBCOLOUR_CIELCHUV:
- c2.cielchuv.one_revolution = 360.;
- /* fall though */
- case LIBCOLOUR_CIELUV:
- c2.cieluv.white.model = LIBCOLOUR_CIEXYZ;
- c2.cieluv.white.X = 1.0294;
- c2.cieluv.white.Y = 1;
- c2.cieluv.white.Z = 0.9118;
- return test_2convert(c1, &c2, &c3);
- case LIBCOLOUR_CIEUVW:
- c2.cieuvw.u0 = 0.37;
- c2.cieuvw.v0 = 0.30;
- return test_2convert(c1, &c2, &c3);
- default:
- return test_2convert(c1, &c2, &c3);
- }
-}
-
-
-static int test_2convert_1n(libcolour_model_t model, const char* model_name, double ch1, double ch2, double ch3)
-{
- libcolour_colour_t c1;
- int run, r, rc = 1;
-
- c1.model = model;
- switch (model) {
- case LIBCOLOUR_CIELAB:
- c1.cielab.L = ch1 * 100, c1.cielab.a = ch2 * 100, c1.cielab.b = ch3 * 100;
- break;
- case LIBCOLOUR_CIELCHUV:
- if (ch3 > 0.9999)
- return 1;
- /* fall though */
- default:
- c1.srgb.R = ch1, c1.srgb.G = ch2, c1.srgb.B = ch3;
- break;
- }
-
- for (run = 0;; run++) {
- switch (model) {
- case LIBCOLOUR_RGB:
- if (run == 2)
- return rc;
- c1.rgb.with_gamma = run;
- if (libcolour_get_rgb_colour_space(&c1.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB) < 0)
- return -1;
- break;
- case LIBCOLOUR_SRGB:
- if (run == 2)
- return rc;
- c1.srgb.with_gamma = run;
- break;
- case LIBCOLOUR_CIELCHUV:
- c1.cielchuv.one_revolution = run < 2 ? 360. : 2 * 3.14159265358979323846;
- c1.cielchuv.h *= c1.cielchuv.one_revolution;
- /* fall through */
- case LIBCOLOUR_CIELUV:
- c1.cieluv.white.model = LIBCOLOUR_CIEXYZ;
- if (run == 0) {
- c1.cieluv.white.X = 1.0294;
- c1.cieluv.white.Y = 1;
- c1.cieluv.white.Z = 0.9118;
- } else if (run == 1) {
- c1.cieluv.white.X = 1.03;
- c1.cieluv.white.Y = 0.8;
- c1.cieluv.white.Z = 0.92;
- } else if (run == 2 && model == LIBCOLOUR_CIELCHUV) {
- c1.cieluv.white.X = 1.0294;
- c1.cieluv.white.Y = 1;
- c1.cieluv.white.Z = 0.9118;
- } else if (run == 3 && model == LIBCOLOUR_CIELCHUV) {
- c1.cieluv.white.X = 1.03;
- c1.cieluv.white.Y = 0.8;
- c1.cieluv.white.Z = 0.92;
- } else {
- return rc;
- }
- break;
- case LIBCOLOUR_CIEUVW:
- if (run == 0) {
- c1.cieuvw.u0 = 0.37;
- c1.cieuvw.v0 = 0.30;
- } else if (run == 1) {
- c1.cieuvw.u0 = 0.47;
- c1.cieuvw.v0 = 0.31;
- } else {
- return rc;
- }
- break;
- default:
- if (run == 1)
- return rc;
- break;
- }
-
-#define X(ENUM, TYPE)\
- r = test_2convert_11(&c1, ENUM);\
- if (r < 0)\
- return -1;\
- if (!r)\
- printf("%s -> %s -> %s failed at run %i with (%lf, %lf, %lf)\n",\
- model_name, #ENUM, model_name, run, ch1, ch2, ch3), rc = 0;
- LIBCOLOUR_LIST_MODELS;
-#undef X
- }
-}
-
-
-static int test_2convert_nm(double ch1, double ch2, double ch3)
-{
- int r, rc = 1;
-
-#define X(ENUM, TYPE)\
- r = test_2convert_1n(ENUM, #ENUM, ch1, ch2, ch3);\
- if (r < 0)\
- return -1;\
- if (!r)\
- rc = 0;
- LIBCOLOUR_LIST_MODELS;
-#undef X
-
- return rc;
-}
-
-
-static int test_2convert_nm_all(void)
-{
-#define N 11
- int r, rc = 1;
- double ch1, ch2, ch3;
- int i, j, k;
-
- for (i = 0; i < N; i++) {
- for (j = 0; j < N; j++) {
- for (k = 0; k < N; k++) {
- ch1 = ((i + N / 2) % N) / (N - 1);
- ch2 = ((j + N / 2) % N) / (N - 1);
- ch3 = ((k + N / 2) % N) / (N - 1);
-
- if (ch1 > 0.999) ch1 = 1;
- if (ch2 > 0.999) ch2 = 1;
- if (ch3 > 0.999) ch3 = 1;
-
- r = test_2convert_nm(ch1, ch2, ch3);
- if (r < 0)
- return -1;
- if (!r)
- rc = 0;
- }
- }
- }
-
- return rc;
-#undef N
-}
-#endif
-
-
-static inline int ftest(double a, double b, double l)
-{
- return a - l <= b && b <= a + l;
-}
-
-
-#define test_rgb(COLOUR_SPACE, ...) test_rgb_(COLOUR_SPACE, #COLOUR_SPACE, __VA_ARGS__)
-static int test_rgb_(enum libcolour_rgb_colour_space colour_space, const char* name,
- double r, double g, double b, double x, double y, double z,
- double xx, double yy, double zz)
-{
- libcolour_colour_t c1, c2;
-
- c1.model = LIBCOLOUR_RGB;
- c2.model = LIBCOLOUR_CIEXYZ;
- c1.rgb.with_gamma = 0;
- c1.rgb.R = r, c1.rgb.G = g, c1.rgb.B = b;
- if (libcolour_get_rgb_colour_space(&c1.rgb, colour_space) ||
- libcolour_convert(&c1, &c2)) {
- printf("%s failed without gamma\n", name);
- return 0;
- } else if (!ftest(c2.ciexyz.X, x, 0.0001) ||
- !ftest(c2.ciexyz.Y, y, 0.0001) ||
- !ftest(c2.ciexyz.Z, z, 0.0001)) {
- printf("%s failed without gamma\n", name);
- return 0;
- }
-
- c1.model = LIBCOLOUR_RGB;
- c2.model = LIBCOLOUR_CIEXYZ;
- c1.rgb.with_gamma = 1;
- c1.rgb.R = r, c1.rgb.G = g, c1.rgb.B = b;
- if (libcolour_get_rgb_colour_space(&c1.rgb, colour_space) ||
- libcolour_convert(&c1, &c2)) {
- printf("%s failed with gamma\n", name);
- return 0;
- } else if (!ftest(c2.ciexyz.X, xx, 0.0001) ||
- !ftest(c2.ciexyz.Y, yy, 0.0001) ||
- !ftest(c2.ciexyz.Z, zz, 0.0001)) {
- printf("%s failed with gamma\n", name);
- return 0;
- }
-
- if (libcolour_convert(&c2, &c1) ||
- !ftest(c1.rgb.R, r, 0.0000001) ||
- !ftest(c1.rgb.G, g, 0.0000001) ||
- !ftest(c1.rgb.B, b, 0.0000001)) {
- printf("%s failed, encode\n", name);
- return 0;
- }
-
- return 1;
-}
-
-
-static int test_1convert(libcolour_colour_t *c1, libcolour_model_t model, const char* name1,
- const char* name2, double ch1, double ch2, double ch3, double d1,
- double d2, double d3)
-{
- libcolour_colour_t c2, c3;
- int rc = 1;
- c3 = *c1;
- c2.model = model;
- switch (model) {
- case LIBCOLOUR_CIELCHUV:
- c2.cielchuv.one_revolution = 360;
- /* fall-through */
- case LIBCOLOUR_CIELUV:
- c2.cieluv.white.X = 0.9504705586542831;
- c2.cieluv.white.Y = 1;
- c2.cieluv.white.Z = 1.0888287363958837;
- break;
- default:
- break;
- }
- if (libcolour_convert(c1, &c2))
- return -1;
- if (!ftest(c2.srgb.R, ch1, d1) ||
- !ftest(c2.srgb.G, ch2, d2) ||
- !ftest(c2.srgb.B, ch3, d3)) {
- printf("%s -> %s failed\n", name1, name2), rc = 0;
- rc = 0;
- }
- if (libcolour_convert(&c2, &c3))
- return -1;
- if (!ftest(c3.srgb.R, c1->srgb.R, 0.00000001) ||
- !ftest(c3.srgb.G, c1->srgb.G, 0.00000001) ||
- !ftest(c3.srgb.B, c1->srgb.B, 0.00000001)) {
- printf("%s -> %s failed\n", name2, name1), rc = 0;
- rc = 0;
- }
- return rc;
-}
-
-
-/**
- * Test libcolour
- *
- * @return 0: All tests passed
- * 1: At least one test fail
- * 2: An error occurred
- */
-int main(int argc, char* argv[])
-{
- int r, rc = 0;
- libcolour_colour_t c1, c2, c3, c4;
- double t1, t2;
- size_t n;
- char buf[sizeof(int) + sizeof(libcolour_rgb_t)];
-
-#ifndef SKIP_2CONVERT
- r = test_2convert_nm_all();
- if (r < 0)
- goto fail;
- if (!r)
- rc = 1;
-#else
- (void) r;
-#endif
-
- c1.model = LIBCOLOUR_SRGB;
- c1.srgb.R = 0.02, c1.srgb.G = 0.5, c1.srgb.B = 0.9;
- c1.srgb.with_gamma = 0;
- c2.model = LIBCOLOUR_RGB;
- c2.rgb.with_gamma = 0;
- if (libcolour_get_rgb_colour_space(&c2.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- if (c2.rgb.white_r != 1 || c2.rgb.white_g != 1 || c2.rgb.white_b != 1 ||
- c2.rgb.red.model != LIBCOLOUR_CIEXYY || c2.rgb.green.model != LIBCOLOUR_CIEXYY ||
- c2.rgb.blue.model != LIBCOLOUR_CIEXYY || c2.rgb.white.model != LIBCOLOUR_CIEXYY ||
- c2.rgb.colour_space != LIBCOLOUR_RGB_COLOUR_SPACE_SRGB || c2.rgb.gamma != 2.4 ||
- c2.rgb.encoding_type != LIBCOLOUR_ENCODING_TYPE_REGULAR || c2.rgb.slope != 12.92
- || c2.rgb.offset != 0.055 || c2.rgb.transitioninv != c2.rgb.transition * c2.rgb.slope ||
- !ftest(c2.rgb.transition, 0.00313067, 0.00000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- t1 = c2.rgb.transition * c2.rgb.slope;
- t2 = (1 + c2.rgb.offset) * pow(c2.rgb.transition, 1 / c2.rgb.gamma) - c2.rgb.offset;
- if (!ftest(t1, t2, 0.0000001) || c2.rgb.white.Y != 1 ||
- c2.rgb.red.x != 0.64 || c2.rgb.red.y != 0.33 || !ftest(c2.rgb.red.Y, 0.21265, 0.00005) ||
- c2.rgb.green.x != 0.30 || c2.rgb.green.y != 0.60 || !ftest(c2.rgb.green.Y, 0.71515, 0.00005) ||
- c2.rgb.blue.x != 0.15 || c2.rgb.blue.y != 0.06 || !ftest(c2.rgb.blue.Y, 0.07215, 0.00005) ||
- !ftest(c2.rgb.white.x, 0.312727, 0.000001) || !ftest(c2.rgb.white.y, 0.329023, 0.000001) ||
- !ftest(c2.rgb.red.Y + c2.rgb.green.Y + c2.rgb.blue.Y, 1, 0.00000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- if (libcolour_convert(&c1, &c2) ||
- !ftest(c1.srgb.R, c2.rgb.R, 0.0000001) ||
- !ftest(c1.srgb.G, c2.rgb.G, 0.0000001) ||
- !ftest(c1.srgb.B, c2.rgb.B, 0.0000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- if (libcolour_convert(&c2, &c1) ||
- !ftest(c1.srgb.R, c2.rgb.R, 0.0000001) ||
- !ftest(c1.srgb.G, c2.rgb.G, 0.0000001) ||
- !ftest(c1.srgb.B, c2.rgb.B, 0.0000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
- goto colour_spaces_done;
- }
-
- c1.model = c2.model = LIBCOLOUR_CIELAB;
- c1.cielab.L = 30, c2.cielab.L = 80;
- c1.cielab.a = 40, c2.cielab.a = -10;
- c1.cielab.b = -50, c2.cielab.b = -40;
- if (libcolour_delta_e(&c1, &c2, &t1) || !ftest(t1, 71.4142842854285, 0.0000001))
- printf("libcolour_delta_e failed\n"), rc = 0;
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_ADOBE_RGB, 0.3, 0.2, 0.9,
- 0.379497, 0.282430, 0.914245, 0.195429, 0.098925, 0.790020);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_APPLE_RGB, 0.3, 0.2, 0.9,
- 0.364212, 0.282789, 0.866008, 0.221570, 0.134028, 0.773782);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_BEST_RGB, 0.3, 0.2, 0.9,
- 0.345007, 0.246779, 0.736029, 0.151406, 0.064655, 0.647212);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_BETA_RGB, 0.3, 0.2, 0.9,
- 0.342837, 0.253386, 0.714198, 0.146437, 0.066824, 0.623382);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_BRUCE_RGB, 0.3, 0.2, 0.9,
- 0.368857, 0.276910, 0.915272, 0.191184, 0.096699, 0.791486);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_CIE_RGB, 0.3, 0.2, 0.9,
- 0.389293, 0.225188, 0.892857, 0.202678, 0.044608, 0.785312);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_COLORMATCH_RGB, 0.3, 0.2, 0.9,
- 0.337557, 0.274378, 0.651989, 0.186858, 0.123210, 0.581381);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_DON_RGB_4, 0.3, 0.2, 0.9,
- 0.344990, 0.251411, 0.727872, 0.150504, 0.066348, 0.638058);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_ECI_RGB, 0.3, 0.2, 0.9,
- 0.353021, 0.286400, 0.695202, 0.196733, 0.134157, 0.630279);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_ECI_RGB_V2, 0.3, 0.2, 0.9,
- 0.353021, 0.286400, 0.695202, 0.149594, 0.097238, 0.579927);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_EKTA_SPACE_PS5, 0.3, 0.2, 0.9,
- 0.320377, 0.229160, 0.713291, 0.127134, 0.043253, 0.622392);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_NTSC_RGB, 0.3, 0.2, 0.9,
- 0.397081, 0.310031, 1.017821, 0.235650, 0.156675, 0.906707);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_PAL_SECAM_RGB, 0.3, 0.2, 0.9,
- 0.357972, 0.272130, 0.877151, 0.208580, 0.120322, 0.769056);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_PROPHOTO_RGB, 0.3, 0.2, 0.9,
- 0.294559, 0.228864, 0.742689, 0.124735, 0.072340, 0.682655);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_SMPTE_C_RGB, 0.3, 0.2, 0.9,
- 0.363595, 0.281822, 0.890350, 0.216773, 0.131311, 0.783348);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_WIDE_GAMUT_RGB, 0.3, 0.2, 0.9,
- 0.367485, 0.237631, 0.706442, 0.170318, 0.052665, 0.614915);
-
- rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_LIGHTROOM_RGB, 0.3, 0.2, 0.9,
- 0.294559, 0.228864, 0.742689, 0.294559, 0.228864, 0.742689);
-
- /*
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_DCI_P3_D65
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_DCI_P3_THEATER
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_601_625_LINE
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_601_525_LINE
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_709
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2020
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_EOTF_PQ
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OOTF_PQ
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OETF_PQ
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_EOTF_HLG
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OOTF_HLG
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_ITU_R_BT_2100_OETF_HLG
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_SGI_RGB
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_SMPTE_240M_RGB
-
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_MEASUREMENTS
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_MATRIX
- TODO test LIBCOLOUR_RGB_COLOUR_SPACE_CUSTOM_FROM_INV_MATRIX
- */
-
- /* TODO test transfer functions more rigorously */
-
- c1.model = c2.model = LIBCOLOUR_RGB;
- c3.model = c4.model = LIBCOLOUR_SRGB;
- c1.rgb.with_gamma = c3.srgb.with_gamma = 0;
- c2.rgb.with_gamma = c4.srgb.with_gamma = 1;
- if (libcolour_get_rgb_colour_space(&c1.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB))
- goto fail;
- if (libcolour_get_rgb_colour_space(&c2.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB))
- goto fail;
- for (t1 = 0; t1 <= 1; t1 += 0.001) {
- c1.rgb.R = c3.srgb.R = t1 - 1;
- c1.rgb.G = c3.srgb.G = t1;
- c1.rgb.B = c3.srgb.B = t1 + 1;
- if (libcolour_convert(&c1, &c2))
- goto fail;
- if (libcolour_convert(&c3, &c4))
- goto fail;
- if (!ftest(c2.rgb.R, c4.srgb.R, 0.00000000001) ||
- !ftest(c2.rgb.G, c4.srgb.G, 0.00000000001) ||
- !ftest(c2.rgb.B, c4.srgb.B, 0.00000000001) ||
- !ftest(libcolour_srgb_encode(c1.rgb.R), c2.srgb.R, 0.00000000001) ||
- !ftest(libcolour_srgb_encode(c1.rgb.G), c2.srgb.G, 0.00000000001) ||
- !ftest(libcolour_srgb_encode(c1.rgb.B), c2.srgb.B, 0.00000000001)) {
- printf("libcolour_srgb_encode failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- if (libcolour_convert(&c2, &c1))
- goto fail;
- if (libcolour_convert(&c4, &c3))
- goto fail;
- if (!ftest(c1.rgb.R, c3.srgb.R, 0.00000000001) ||
- !ftest(c1.rgb.G, c3.srgb.G, 0.00000000001) ||
- !ftest(c1.rgb.B, c3.srgb.B, 0.00000000001) ||
- !ftest(libcolour_srgb_decode(c2.rgb.R), c1.srgb.R, 0.00000000001) ||
- !ftest(libcolour_srgb_decode(c2.rgb.G), c1.srgb.G, 0.00000000001) ||
- !ftest(libcolour_srgb_decode(c2.rgb.B), c1.srgb.B, 0.00000000001)) {
- printf("libcolour_srgb_decode failed\n"), rc = 0;
- goto colour_spaces_done;
- }
- }
-
- c1.rgb.encoding_type = LIBCOLOUR_ENCODING_TYPE_SIMPLE;
- c1.rgb.gamma = 2.2;
- c1.rgb.with_gamma = 0;
- c1.rgb.R = 0.25;
- c1.rgb.G = 0.5;
- c1.rgb.B = 0.75;
- c4 = c3 = c2 = c1;
- c2.rgb.with_gamma = c3.srgb.with_gamma = 1;
- c3.rgb.gamma = c4.rgb.gamma = 1.8;
- if (libcolour_convert(&c1, &c2))
- goto fail;
- if (libcolour_convert(&c2, &c3))
- goto fail;
- if (libcolour_convert(&c3, &c4))
- goto fail;
- if (!ftest(c1.rgb.R, c4.srgb.R, 0.0000001) ||
- !ftest(c1.rgb.G, c4.srgb.G, 0.0000001) ||
- !ftest(c1.rgb.B, c4.srgb.B, 0.0000001)) {
- printf("libcolour_convert failed to convert between two transfer functions\n"), rc = 0;
- goto colour_spaces_done;
- }
-
- if (libcolour_convert(&c1, &c4))
- goto fail;
- if (!ftest(c1.rgb.R, c4.srgb.R, 0.0000001) ||
- !ftest(c1.rgb.G, c4.srgb.G, 0.0000001) ||
- !ftest(c1.rgb.B, c4.srgb.B, 0.0000001)) {
- printf("libcolour_convert failed to convert when two different transfer functions are not applied\n"), rc = 0;
- goto colour_spaces_done;
- }
-
-#define TEST(TO, CH1, CH2, CH3, D1, D2, D3)\
- r = test_1convert(&c1, TO, "LIBCOLOUR_SRGB", #TO, CH1, CH2, CH3, D1, D2, D3);\
- if (r < 0)\
- goto fail;\
- if (!r)\
- rc = 1;
-
- c1.model = LIBCOLOUR_SRGB;
- c1.srgb.with_gamma = 0;
- c1.srgb.R = 0.3, c1.srgb.G = 0.2, c1.srgb.B = 0.7;
- TEST(LIBCOLOUR_CIEXYZ, 0.321558, 0.257355, 0.694851, 0.000001, 00000001, 0.000001);
- TEST(LIBCOLOUR_CIEXYY, 0.252447, 0.202043, 0.257355, 0.000001, 0.000001, 0.000001);
- TEST(LIBCOLOUR_CIELAB, 57.7851, 30.3599, -44.9740, 0.0001, 0.0001, 0.0001);
- TEST(LIBCOLOUR_CIELUV, 57.7851, 5.5723, -74.1571, 0.0001, 0.0001, 0.0001);
- TEST(LIBCOLOUR_CIELCHUV, 57.7851, 74.3662, 274.2972, 0.0001, 0.0001, 0.0001);
- /*
- * TODO convert test from sRGB to:
- * LChab 57.7851, 54.2622, 304.0215
- * YDbDr
- * YPbPr
- * YCgCo
- * CIE 1960 UCS
- * CIEUVW
- */
- c1.srgb.with_gamma = 0;
- c1.srgb.R = 32 / 255., c1.srgb.G = 65 / 255., c1.srgb.B = 32 / 255.;
- TEST(LIBCOLOUR_YIQ, 0.201, -0.035, -0.068, 0.001, 0.001, 0.001);
- TEST(LIBCOLOUR_YUV, 0.201, -0.037, -0.067, 0.001, 0.001, 0.001);
- /* XXX YCbCr(60, 118, 116) */
- /* XXX HSV(120, 0.508, 0.255) */
- /* XXX HSI(120, 0.256, 0.169) */
- /* XXX HSL(120, 0.340, 0.190) */
-
- if (rc)
- goto colour_spaces_done;
-
-#undef TEST
- colour_spaces_done:
-
- memset(&c1, 0, sizeof(c1));
- memset(&c2, 0, sizeof(c2));
- c1.model = LIBCOLOUR_RGB;
- if (libcolour_get_rgb_colour_space(&c1.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_ECI_RGB_V2))
- goto fail;
- c3 = c1;
- c1.rgb.to_encoded_red = NULL;
- c1.rgb.to_encoded_green = NULL;
- c1.rgb.to_encoded_blue = NULL;
- c1.rgb.to_decoded_red = NULL;
- c1.rgb.to_decoded_green = NULL;
- c1.rgb.to_decoded_blue = NULL;
- if (libcolour_marshal(&c1, NULL) > sizeof(buf)) {
- printf("libcolour_marshal failed\n"), rc = 0;
- goto marshal_done;
- }
- n = libcolour_marshal(&c1, buf);
- if (n > sizeof(buf)) {
- printf("libcolour_marshal failed\n"), rc = 0;
- goto marshal_done;
- }
- if (libcolour_unmarshal(NULL, buf) != n) {
- printf("libcolour_unmarshal failed\n"), rc = 0;
- goto marshal_done;
- }
- if (libcolour_unmarshal(&c2, buf) != n) {
- printf("libcolour_unmarshal failed\n"), rc = 0;
- goto marshal_done;
- }
- if (memcmp(&c2, &c3, sizeof(c2))) {
- printf("libcolour_(un)marshal failed\n"), rc = 0;
- goto marshal_done;
- }
- marshal_done:
-
- return rc;
- fail:
- perror(*argv);
- return 2;
- (void) argc;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-04 22:55:18 +0000