Rename to blind

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/blind-single-colour.c b/src/blind-single-colour.c
new file mode 100644
index 0000000..254ea2a
--- /dev/null
+++ b/src/blind-single-colour.c
@@ -0,0 +1,88 @@
+/* See LICENSE file for copyright and license details. */
+#include "stream.h"
+#include "util.h"
+
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+USAGE("[-f frames | -f 'inf'] -w width -h height (X Y Z | Y) [alpha]")
+
+typedef double pixel_t[4];
+
+int
+main(int argc, char *argv[])
+{
+	struct stream stream;
+	double X, Y, Z, alpha = 1;
+	size_t x, y, n;
+	pixel_t buf[1024];
+	ssize_t r;
+	int inf = 0;
+	char *arg;
+
+	stream.width = 0;
+	stream.height = 0;
+	stream.frames = 1;
+
+	ARGBEGIN {
+	case 'f':
+		arg = EARG();
+		if (!strcmp(arg, "inf"))
+			inf = 1, stream.frames = 0;
+		else
+			stream.frames = etozu_flag('f', arg, 1, SIZE_MAX);
+		break;
+	case 'w':
+		stream.width = etozu_flag('w', EARG(), 1, SIZE_MAX);
+		break;
+	case 'h':
+		stream.height = etozu_flag('h', EARG(), 1, SIZE_MAX);
+		break;
+	default:
+		usage();
+	} ARGEND;
+
+	if (!stream.width || !stream.height || !argc || argc > 4)
+		usage();
+
+	if (argc < 3) {
+		X = D65_XYY_X / D65_XYY_Y;
+		Z = 1 / D65_XYY_Y - 1 - X;
+		Y = etolf_arg("the Y value", argv[1]);
+	} else {
+		X = etolf_arg("the X value", argv[0]);
+		Y = etolf_arg("the Y value", argv[1]);
+		Z = etolf_arg("the Z value", argv[2]);
+	}
+	if (~argc & 1)
+		alpha = etolf_arg("the alpha value", argv[argc - 1]);
+
+	if (inf)
+		einf_check_fd(STDOUT_FILENO, "<stdout>");
+
+	strcpy(stream.pixfmt, "xyza");
+	fprint_stream_head(stdout, &stream);
+	efflush(stdout, "<stdout>");
+
+	for (x = 0; x < ELEMENTSOF(buf); x++) {
+		buf[x][0] = X;
+		buf[x][1] = Y;
+		buf[x][2] = Z;
+		buf[x][3] = alpha;
+	}
+	while (inf || stream.frames--) {
+		for (y = stream.height; y--;) {
+			for (x = stream.width; x;) {
+				x -= n = ELEMENTSOF(buf) < x ? ELEMENTSOF(buf) : x;
+				for (n *= sizeof(*buf); n; n -= (size_t)r) {
+					r = write(STDOUT_FILENO, buf, n);
+					if (r < 0)
+						eprintf("write <stdout>:");
+				}
+			}
+		}
+	}
+
+	return 0;
+}