/* See LICENSE file for copyright and license details. */ #include "libcolour.h" #include #include #include #include #undef libcolour_unmarshal #define libcolour_colour_t libcolour_colour_lf_t #define libcolour_rgb_t libcolour_rgb_lf_t #define libcolour_srgb_t libcolour_srgb_lf_t #define libcolour_ciexyy_t libcolour_ciexyy_lf_t #define libcolour_unmarshal libcolour_unmarshal_lf #define SLOPE transfer.regular.slope #define TRANSITIONINV transfer.regular.transitioninv #define TRANSITION transfer.regular.transition #define GAMMA transfer.regular.gamma #define OFFSET transfer.regular.offset #define TO_ENCODED_RED transfer.custom.to_encoded_red #define TO_DECODED_RED transfer.custom.to_decoded_red #define TO_ENCODED_GREEN transfer.custom.to_encoded_green #define TO_DECODED_GREEN transfer.custom.to_decoded_green #define TO_ENCODED_BLUE transfer.custom.to_encoded_blue #define TO_DECODED_BLUE transfer.custom.to_decoded_blue #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 (!(isnan(c2->srgb.R) || isnan(c2->srgb.G) || isnan(c2->srgb.B))) if ((isnan(c3->srgb.R) || isnan(c3->srgb.G) || isnan(c3->srgb.B))) fprintf(stderr, "(%lf %lf %lf)[%i] -> (%lf %lf %lf)[%i] -> (%lf %lf %lf)[%i]\n", c1->srgb.R, c1->srgb.G, c1->srgb.B, c1->model, c2->srgb.R, c2->srgb.G, c2->srgb.B, c2->model, c3->srgb.R, c3->srgb.G, c3->srgb.B, c3->model); 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 through */ 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 through */ case LIBCOLOUR_CIELUV: if (ch1 <= 0.00001 && (ch2 > 0.00001 || ch3 > 0.00001)) return 1; /* fall through */ 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; } static int test_en_masse(libcolour_colour_t *c1, libcolour_colour_t *c2, libcolour_colour_t *c3, int mode) { double in1[8], in2[2], in3[2], in4[2], out1[8], out2[2], out3[2], out4[2]; #define SET(R1, G1, B1, A1, R2, G2, B2, A2)\ ((R1) = c1->srgb.R, (R2) = c2->srgb.R,\ (G1) = c1->srgb.G, (G2) = c2->srgb.G,\ (B1) = c1->srgb.B, (B2) = c2->srgb.B,\ (A1) = 0.4, (A2) = 0.6) #define CHECK(C, RR, GG, BB, AA, A)\ do {\ if (libcolour_convert((C), c3))\ printf("libcolour_convert failed\n");\ if ((mode & 3) == LIBCOLOUR_CONVERT_EN_MASSE_NO_ALPHA)\ (AA) = (A);\ if ((mode & 3) == LIBCOLOUR_CONVERT_EN_MASSE_SEPARATED)\ (AA) = (A);\ if ((RR) != c3->srgb.R || (GG) != c3->srgb.G || (BB) != c3->srgb.B || (AA) != (A))\ return printf("libcolour_convert_en_masse(mode=%i) failed, "\ "got (%lf, %lf, %lf, %lf), "\ "expected (%lf, %lf, %lf, %lf)\n",\ mode, (RR), (GG), (BB), (AA),\ c3->srgb.R, c3->srgb.G, c3->srgb.B, (A)), -1;\ } while (0) #define TEST(R1, G1, B1, A1, R2, G2, B2, A2, ...)\ do {\ SET(in##R1, in##G1, in##B1, in##A1, in##R2, in##G2, in##B2, in##A2);\ if (libcolour_convert_en_masse(c1, c3, mode, 2, __VA_ARGS__))\ return printf("libcolour_convert_en_masse(mode=%i) failed", mode), -2;\ if (mode & LIBCOLOUR_CONVERT_EN_MASSE_NO_OVERRIDE) {\ CHECK(c1, out##R1, out##G1, out##B1, out##A1, 0.4);\ CHECK(c2, out##R2, out##G2, out##B2, out##A2, 0.6);\ } else {\ CHECK(c1, in##R1, in##G1, in##B1, in##A1, 0.4);\ CHECK(c2, in##R2, in##G2, in##B2, in##A2, 0.6);\ }\ } while (0) switch (mode & 3) { case LIBCOLOUR_CONVERT_EN_MASSE_NO_ALPHA: TEST(1[0], 1[1], 1[2], 1[6], 1[3], 1[4], 1[5], 1[7], in1, out1); break; case LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_FIRST: TEST(1[1], 1[2], 1[3], 1[0], 1[5], 1[6], 1[7], 1[4], in1, out1); break; case LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_LAST: TEST(1[0], 1[1], 1[2], 1[3], 1[4], 1[5], 1[6], 1[7], in1, out1); break; case LIBCOLOUR_CONVERT_EN_MASSE_SEPARATED: TEST(1[0], 2[0], 3[0], 4[0], 1[1], 2[1], 3[1], 4[1], in1, in2, in3, out1, out2, out3); break; default: abort(); } #undef SET #undef CHECK #undef TEST return 0; } static int test_partitioned_en_masse(void) { libcolour_srgb_t from; libcolour_ciexyy_t to; double ch1[32], ch2[32], ch3[32]; int i; from.model = LIBCOLOUR_SRGB; from.with_transfer = 0; to.model = LIBCOLOUR_CIEXYY; for (i = 0; i < 32; i++) { ch1[i] = (i + 1.) / 32.; ch2[i] = (i + 1.) / 32.; ch3[i] = (i + 1.) / 32.; } for (i = 3; i < 6; i++) ch1[i] = ch2[i] = ch3[i] = 0; for (i = 20; i < 30; i++) ch1[i] = ch2[i] = ch3[i] = 0; if (libcolour_convert_en_masse(&from, &to, LIBCOLOUR_CONVERT_EN_MASSE_SEPARATED, 32, ch1, ch2, ch3)) return -1; for (i = 0; i < 32; i++) { if ((3 <= i && i < 6) || (20 <= i && i < 30)) from.R = from.G = from.B = 0; else from.R = from.G = from.B = (i + 1.) / 32.; if (libcolour_convert(&from, &to)) return -1; if (ch1[i] != to.x || ch2[i] != to.y || ch3[i] != to.Y) { printf("test_partitioned_en_masse failed at %i\n", i); return -1; } } return 0; } /** * 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, i; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 = 1; 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 * YES */ 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 = 1; goto marshal_done; } n = libcolour_marshal(&c1, buf); if (n > sizeof(buf)) { printf("libcolour_marshal failed\n"), rc = 1; goto marshal_done; } if (libcolour_unmarshal(NULL, buf) != n) { printf("libcolour_unmarshal failed\n"), rc = 1; goto marshal_done; } if (libcolour_unmarshal(&c2, buf) != n) { printf("libcolour_unmarshal failed\n"), rc = 1; goto marshal_done; } if (memcmp(&c2, &c3, sizeof(c2))) { printf("libcolour_(un)marshal failed\n"), rc = 1; goto marshal_done; } marshal_done: c1.srgb.model = LIBCOLOUR_SRGB; c1.srgb.R = 0.8; c1.srgb.G = 0.7; c1.srgb.B = 0.6; c1.srgb.with_transfer = 1; c2.srgb.model = LIBCOLOUR_SRGB; c2.srgb.R = 0.1; c2.srgb.G = 0.2; c2.srgb.B = 0.3; c2.srgb.with_transfer = 1; c3.model = LIBCOLOUR_CIEXYZ; for (i = 0; i < 15; i++) { if (test_en_masse(&c1, &c2, &c3, i)) { rc = 1; goto en_masse_done; } } if (test_partitioned_en_masse()) { rc = 1; goto en_masse_done; } en_masse_done: return rc; fail: perror(*argv); (void) argc; return 2; }