diff options
Diffstat (limited to '')
| -rw-r--r-- | src/libclut.h | 40 | ||||
| -rw-r--r-- | src/test.c | 168 |
2 files changed, 188 insertions, 20 deletions
diff --git a/src/libclut.h b/src/libclut.h index 3c15a6a..0d63d4a 100644 --- a/src/libclut.h +++ b/src/libclut.h @@ -379,26 +379,26 @@ * @param bmin The blue component value of the blackpoint. * @param bmax The blue component value of the whitepoint. */ -#define libclut_rgb_limits(clut, max, type, rmin, rmax, gmin, gmax, bmin, bmax) \ - do \ - { \ - double diff__; \ - if ((rmin != 0.0) || (rmax != 1.0)) \ - { \ - diff__ = (double)(rmax__) - (double)(rmin__); \ - libclut__(clut, red, type, LIBCLUT_VALUE * diff__ + (rmin__)); \ - } \ - if ((gmin != 0.0) || (gmax != 1.0)) \ - { \ - diff__ = (double)(gmax__) - (double)(gmin__); \ - libclut__(clut, green, type, LIBCLUT_VALUE * diff__ + (gmin__)); \ - } \ - if ((bmin != 0.0) || (bmax != 1.0)) \ - { \ - diff__ = (double)(bmax__) - (double)(bmin__); \ - libclut__(clut, blue, type, LIBCLUT_VALUE * diff__ + (bmin__)); \ - } \ - } \ +#define libclut_rgb_limits(clut, max, type, rmin, rmax, gmin, gmax, bmin, bmax) \ + do \ + { \ + double diff__; \ + if ((rmin != 0.0) || (rmax != 1.0)) \ + { \ + diff__ = (double)(rmax) - (double)(rmin); \ + libclut__(clut, red, type, LIBCLUT_VALUE / (double)(max) * diff__ + (rmin)); \ + } \ + if ((gmin != 0.0) || (gmax != 1.0)) \ + { \ + diff__ = (double)(gmax) - (double)(gmin); \ + libclut__(clut, green, type, LIBCLUT_VALUE / (double)(max) * diff__ + (gmin)); \ + } \ + if ((bmin != 0.0) || (bmax != 1.0)) \ + { \ + diff__ = (double)(bmax) - (double)(bmin); \ + libclut__(clut, blue, type, LIBCLUT_VALUE / (double)(max) * diff__ + (bmin)); \ + } \ + } \ while (0) diff --git a/src/test.c b/src/test.c new file mode 100644 index 0000000..393e11e --- /dev/null +++ b/src/test.c @@ -0,0 +1,168 @@ +/** + * Copyright © 2016 Mattias Andrée <maandree@member.fsf.org> + * + * 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 "libclut.h" + +#include <stddef.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + + + +struct clut +{ + size_t red_size; + size_t green_size; + size_t blue_size; + uint16_t *red; + uint16_t *green; + uint16_t *blue; +}; + + + +static inline int clutcmp(const struct clut *a, const struct clut *b) +{ + return memcmp(a->red, b->red, 3 * 256 * sizeof(uint16_t)); +} + + +static int dumpcluts(const struct clut *a, const struct clut *b) +{ + size_t i; + for (i = 0; i < 256; i++) + printf("%3zu (%02x) :: %04x - %04x ---- %04x - %04x ---- %04x - %04x\n", + i, i, a->red[i], b->red[i], a->green[i], b->green[i], a->blue[i], b->blue[i]); +} + +static double make_double(double x) +{ + return x * 2; +} + + +/** + * Test libclut + * + * @return 0: All tests passed + * 1: At east one test fail + * 2: An error occurred + */ +int main(int argc, char *argv[]) +{ + struct clut t1, t2, t3; + size_t i, j; + int rc = 0; + + t1. red_size = t2. red_size = t3. red_size = 256; + t1.green_size = t2.green_size = t3.green_size = 256; + t1. blue_size = t2. blue_size = t3. blue_size = 256; + if (!(t1.red = malloc(3 * 256 * sizeof(uint16_t)))) goto fail; + if (!(t2.red = malloc(3 * 256 * sizeof(uint16_t)))) goto fail; + if (!(t3.red = malloc(3 * 256 * sizeof(uint16_t)))) goto fail; + t1.blue = (t1.green = t1.red + 256) + 256; + t2.blue = (t2.green = t2.red + 256) + 256; + t3.blue = (t3.green = t3.red + 256) + 256; + + + libclut_start_over(&t1, UINT16_MAX, uint16_t, 1, 1, 1); + for (i = 0; i < 256; i++) + t2.blue[i] = t2.green[i] = t2.red[i] = (uint16_t)((i << 8) | i); + if (clutcmp(&t1, &t2)) + printf("libclut_start_over failed\n"), rc = 1; + + + for (i = 0, j = 255; i < 256; i++, j--) + { + t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)i; + t2.blue[j] = t2.green[j] = t2.red[j] = (uint16_t)i; + } + libclut_negative(&t1, UINT16_MAX, uint16_t, 1, 1, 1); + if (clutcmp(&t1, &t2)) + printf("libclut_negative failed\n"), rc = 1; + + + for (i = 0; i < 256; i++) + { + t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)i; + t2.blue[i] = t2.green[i] = t2.red[i] = UINT16_MAX - (uint16_t)i; + } + libclut_rgb_invert(&t1, UINT16_MAX, uint16_t, 1, 1, 1); + if (clutcmp(&t1, &t2)) + printf("libclut_rgb_invert failed\n"), rc = 1; + + + for (i = 0; i < 256; i++) + { + t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)((i << 8) | i); + t2.blue[i] = 1 + (t2.green[i] = 1 + (t2.red[i] = 1000 + (uint16_t)i)); + } + libclut_rgb_limits(&t1, UINT16_MAX, uint16_t, 1000, 1255, 1001, 1256, 1002, 1257); + if (clutcmp(&t1, &t2)) + printf("libclut_rgb_limits failed\n"), rc = 1; + + + for (i = 0; i < 256; i++) + { + t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)i; + t2.red[i] = t1.blue[i] * 2; + t2.green[i] = t1.green[i] * 3; + t2.blue[i] = t1.blue[i] * 4; + } + libclut_rgb_brightness(&t1, UINT16_MAX, uint16_t, 2, 3, 4); + if (clutcmp(&t1, &t2)) + printf("libclut_rgb_brightness failed\n"), rc = 1; + + + for (i = 0; i < 256; i++) + { + t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)i; + t2.blue[i] = t2.green[i] = 2 * (t2.red[i] = (uint16_t)i); + } + libclut_manipulate(&t1, UINT16_MAX, uint16_t, (double (*)(double))(NULL), make_double, make_double); + if (clutcmp(&t1, &t2)) + printf("libclut_manipulate failed\n"), rc = 1; + + + if (!rc) + printf("everything is fine\n"); + return rc; + fail: + perror(*argv); + return 2; + (void) argc; +} + + +/* + libclut_rgb_contrast + libclut_cie_contrast + libclut_cie_brightness + libclut_linearise + libclut_standardise + libclut_gamma + libclut_cie_invert + libclut_sigmoid + libclut_cie_limits + libclut_cie_manipulate + libclut_clip + libclut_lower_resolution + libclut_apply + libclut_cie_apply +*/ + |