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authorMattias Andrée <maandree@kth.se>2017-06-06 13:55:17 +0200
committerMattias Andrée <maandree@kth.se>2017-06-06 13:59:36 +0200
commite047ec28ef55bc5a2bb8b1790201e51d02eb5a12 (patch)
tree28f7dacb5d45dbe7aa252f53a18187208fc6464a /test.c
parentPrepare for release (diff)
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Remove a much of stuff, change license, and add support for float and long double
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'test.c')
-rw-r--r--test.c658
1 files changed, 658 insertions, 0 deletions
diff --git a/test.c b/test.c
new file mode 100644
index 0000000..f6fb2e1
--- /dev/null
+++ b/test.c
@@ -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;
+}