uhoh

Author: radarhere

Tests/test_file_dds.py

@@ -399,12 +399,30 @@ def test_save(mode: str, test_file: str, tmp_path: Path) -> None:
 
 
 def test_save_dxt1(tmp_path: Path) -> None:
-    out = str(tmp_path / "temp.dds")
-    with Image.open("Tests/images/dxt1-rgb-4bbp-noalpha_MipMaps-1.dds") as im:
-        im.save(out, pixel_format="DXT1")
+    if False:
+        out = str(tmp_path / "temp.dds")
+        with Image.open("Tests/images/dxt1-rgb-4bbp-noalpha_MipMaps-1.dds") as im:
+            im.save(out, pixel_format="DXT1")
 
-    with Image.open(out) as reloaded:
-        assert_image_similar(im, reloaded, 1.84)
+        with Image.open(out) as reloaded:
+            assert_image_similar(im, reloaded, 1.84)
+
+        with Image.open("Tests/images/transparent.png") as im:
+            im.convert("RGB").save("opaque.dds")
+            Image.open("opaque.dds").save("opaque.png")
+            for x in range(im.width):
+                for y in range(im.height):
+                    pass#print(im.getpixel((x, y)))
+            im.save("temp.gif")
+            im.save("temp.dds", pixel_format="DXT1")
+        Image.open("temp.dds").save("temp.png")
 
     with Image.open("Tests/images/transparent.png") as im:
-        im.save("temp.dds", pixel_format="DXT1")
+        x = im.crop((120, 100, 124, 104))
+        x.save("cropped.png")
+        x.save("cropped.dds")
+        Image.open("cropped.dds").save("roundtrip.png")
+        x = x.convert("RGB")
+        x.save("rgb.png")
+        x.save("rgb.dds")
+        Image.open("rgb.dds").save("rgb_roundtrip.png")

cropped.dds

@@ -95,6 +95,7 @@ ImagingBcnEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
         }
 
         if (transparency) {
+            printf("transparency\n");
             *dst++ = color_min;
             *dst++ = color_min >> 8;
         }