Kitty image input path.

regress/image-sixel-palette.sh

@@ -10,25 +10,31 @@ export TERM
 
 python3 -B - "$TEST_TMUX" <<'PY'
 import sys
-from image_test import image_test, sixel
+from image_test import image_test, kitty, sixel
 
 levels = [0, 14, 29, 43, 57, 71, 86, 100]
 palette = [(r, g, b) for r in levels for g in levels for b in levels]
 expected = [tuple((c * 255 + 50) // 100 for c in p) for p in palette]
-with image_test(sys.argv[1]) as test:
-    client = test.attach()
-    test.emit(sixel(32, 16, palette, list(range(512))))
-    images = client.images()
-    assert len(images) == 1 and images[0][:2] == (32, 16)
-    actual = images[0][2]
-    assert all(c is not None for c in actual), 'dithering introduced holes'
-    assert 128 <= len(set(actual)) <= 256, len(set(actual))
-    errors = [abs(a - e) for p, q in zip(actual, expected) for a, e in zip(p, q)]
-    assert max(errors) <= 80, max(errors)
-    assert sum(errors) / len(errors) <= 16, sum(errors) / len(errors)
-    assert max(actual[0]) <= 30 and min(actual[-1]) >= 225, (
-        'black/white extremes lost', actual[0], actual[-1])
-    for _ in range(3):
-        test.redraw()
-        assert client.images() == images, 'palette or dithering changed on redraw'
+raw = bytes(c for rgb in expected for c in (*rgb, 255))
+commands = [sixel(32, 16, palette, list(range(512))),
+    kitty('a=T,i=7,f=32,s=32,v=16,C=1', raw)]
+for command in commands:
+    with image_test(sys.argv[1]) as test:
+        client = test.attach()
+        test.emit(command)
+        images = client.images()
+        assert len(images) == 1 and images[0][:2] == (32, 16)
+        actual = images[0][2]
+        assert all(c is not None for c in actual), 'dithering introduced holes'
+        assert 128 <= len(set(actual)) <= 256, len(set(actual))
+        errors = [abs(a - e) for p, q in zip(actual, expected)
+            for a, e in zip(p, q)]
+        assert max(errors) <= 80, max(errors)
+        assert sum(errors) / len(errors) <= 16, sum(errors) / len(errors)
+        assert max(actual[0]) <= 30 and min(actual[-1]) >= 225, (
+            'black/white extremes lost', actual[0], actual[-1])
+        for _ in range(3):
+            test.redraw()
+            assert client.images() == images, \
+                'palette or dithering changed on redraw'
 PY