1 files changed, 86 insertions, 0 deletions
diff --git a/types-ramps.c b/types-ramps.c
new file mode 100644
index 0000000..a80f66b
--- /dev/null
+++ b/types-ramps.c
@@ -0,0 +1,86 @@
+/* See LICENSE file for copyright and license details. */
+#include "types-ramps.h"
+
+#include <libclut.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/**
+ * The name of the process
+ */
+extern char *restrict argv0;
+
+
+/**
+ * Marshal a ramp trio
+ * 
+ * @param   this        The ramps
+ * @param   buf         Output buffer for the marshalled ramps,
+ *                      `NULL` just measure how large the buffers
+ *                      needs to be
+ * @param   ramps_size  The byte-size of ramps
+ * @return              The number of marshalled byte
+ */
+size_t
+gamma_ramps_marshal(const union gamma_ramps *restrict this, void *restrict buf, size_t ramps_size)
+{
+	if (buf)
+		memcpy(buf, this->u8.red, ramps_size);
+	return ramps_size;
+}
+
+
+/**
+ * Unmarshal a ramp trio
+ * 
+ * @param   this        Output for the ramps, `.red_size`, `.green_size`,
+ *                      and `.blue_size` must already be set
+ * @param   buf         Buffer with the marshalled ramps
+ * @param   ramps_size  The byte-size of ramps
+ * @return              The number of unmarshalled bytes, 0 on error
+ */
+size_t
+gamma_ramps_unmarshal(union gamma_ramps *restrict this, const void *restrict buf, size_t ramps_size)
+{
+	size_t depth = ramps_size / (this->u8.red_size + this->u8.green_size + this->u8.blue_size);
+	int r = 0;
+
+	switch (depth) {
+	case 1:
+		r = libgamma_gamma_ramps8_initialise(&this->u8);
+		break;
+
+	case 2:
+		r = libgamma_gamma_ramps16_initialise(&this->u16);
+		break;
+
+	case 4:
+		r = libgamma_gamma_ramps32_initialise(&this->u32);
+		break;
+
+	case 8:
+		r = libgamma_gamma_ramps64_initialise(&this->u64);
+		break;
+
+	default:
+		if (depth == sizeof(float))
+			r = libgamma_gamma_rampsf_initialise(&this->f);
+		else if (depth == sizeof(double))
+			r = libgamma_gamma_rampsd_initialise(&this->d);
+		else
+			abort();
+		break;
+	}
+
+	if (r) {
+		libgamma_perror(argv0, r);
+		errno = 0;
+		return 0;
+	}
+
+	memcpy(this->u8.red, buf, ramps_size);
+	return ramps_size;
+}