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authorMattias Andrée <maandree@kth.se>2019-10-06 09:36:23 +0200
committerMattias Andrée <maandree@kth.se>2019-10-06 09:36:23 +0200
commit1be48c64b4e5df9e9b1ad69b3bb30b867b0abf9e (patch)
tree697f6c2fb5f3f91ab64e6ed32c45e483bf31e442 /parse_10deg.c
parentAdd golden hour and blue hour (diff)
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Clean up
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'parse_10deg.c')
-rw-r--r--parse_10deg.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/parse_10deg.c b/parse_10deg.c
new file mode 100644
index 0000000..4cdfd61
--- /dev/null
+++ b/parse_10deg.c
@@ -0,0 +1,55 @@
+/* See LICENSE file for copyright and license details. */
+#include "libred.h"
+#include "macros.h"
+#include <stdio.h>
+#include <math.h>
+#include <sys/stat.h>
+
+
+
+/**
+ * The number of measured temperatures.
+ */
+#define TEMPERATURES ((LIBRED_HIGHEST_TEMPERATURE - LIBRED_LOWEST_TEMPERATURE) / LIBRED_DELTA_TEMPERATURE + 1)
+
+
+
+#define LIBRED_COMPILING_PARSER
+#include "blackbody.c"
+
+
+
+/**
+ * Create the lookup table of temperatures.
+ *
+ * Standard input should be the file '10deg',
+ * standard output should be the table file
+ * and must be a regular file.
+ *
+ * @param argc Should be 1.
+ * @param argv Should only contain the name of the process.
+ * @return 0 on success, 1 on error.
+ */
+int
+main(int argc, char *argv[])
+{
+#define x (xyrgb[0])
+#define y (xyrgb[1])
+#define r (xyrgb[2])
+#define g (xyrgb[3])
+#define b (xyrgb[4])
+
+ double xyrgb[5];
+ struct stat attr;
+ long int temp = LIBRED_LOWEST_TEMPERATURE;
+
+ for (; fscanf(stdin, "%lf %lf\n", &x, &y) == 2; temp += LIBRED_DELTA_TEMPERATURE) {
+ (temp == 6500) ? (r = g = b = 1.0) : ciexyy_to_srgb(x, y, 1.0, &r, &g, &b);
+ xwrite(STDOUT_FILENO, xyrgb, sizeof(xyrgb));
+ }
+ xwrite(STDOUT_FILENO, xyrgb, sizeof(xyrgb)); /* sugar */
+ t (fstat(STDOUT_FILENO, &attr));
+ return ((size_t)(attr.st_size) != (TEMPERATURES + 1) * 5 * sizeof(double));
+fail:
+ return perror(argc ? *argv : "parse_10deg"), 1;
+}