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Diffstat (limited to '')
| -rw-r--r-- | test.c | 658 |
1 files changed, 658 insertions, 0 deletions
@@ -0,0 +1,658 @@ +/* See LICENSE file for copyright and license details. */ +#include "libcolour.h" + +#include <math.h> +#include <stdio.h> +#include <string.h> + + +#undef libcolour_unmarshal + +#define libcolour_colour_t libcolour_colour_lf_t +#define libcolour_rgb_t libcolour_rgb_lf_t +#define libcolour_unmarshal libcolour_unmarshal_lf + + +#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_transfer = 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_transfer = 0; + if (r1 = test_2convert(c1, &c2, &c3), r1 < 0) + return -1; + c2.srgb.with_transfer = 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_transfer = 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_transfer = 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, T, N)\ + 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(X,); +#undef X + } +} + + +static int +test_2convert_nm(double ch1, double ch2, double ch3) +{ + int r, rc = 1; + +#define X(ENUM, T, N)\ + r = test_2convert_1n(ENUM, #ENUM, ch1, ch2, ch3);\ + if (r < 0)\ + return -1;\ + if (!r)\ + rc = 0; + LIBCOLOUR_LIST_MODELS(X,); +#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_transfer = 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_transfer = 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_transfer = 0; + c2.model = LIBCOLOUR_RGB; + c2.rgb.with_transfer = 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_transfer = c3.srgb.with_transfer = 0; + c2.rgb.with_transfer = c4.srgb.with_transfer = 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_transfer = 0; + c1.rgb.R = 0.25; + c1.rgb.G = 0.5; + c1.rgb.B = 0.75; + c4 = c3 = c2 = c1; + c2.rgb.with_transfer = c3.srgb.with_transfer = 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_transfer = 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, 0.000001, 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_transfer = 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; +} |