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+/**
+ * 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
+*/
+