Add basic handler for ktx format texture files

This adds basic support for reading compressed textures stored in .ktx
files, the Khronos texture file format.

Change-Id: Iafb86cff9607eedb26a73989f9b005455ddd316f
Reviewed-by: Kai Koehne <kai.koehne@qt.io>

2 files changed, 10 insertions, 0 deletions

diff --git a/tests/auto/qmltest/image/car.ktx b/tests/auto/qmltest/image/car.ktx
new file mode 100644
index 0000000000..2aefdd306b
--- /dev/null
+++ b/tests/auto/qmltest/image/car.ktx
diff --git a/tests/auto/qmltest/image/tst_image.qml b/tests/auto/qmltest/image/tst_image.qml
index 6385db7fbb..346bee6969 100644
--- a/tests/auto/qmltest/image/tst_image.qml
+++ b/tests/auto/qmltest/image/tst_image.qml
@@ -127,6 +127,11 @@ Item {
         source: "logo.pkm"
     }
 
+    Image {
+        id: ktxImage
+        source: "car.ktx"
+    }
+
     TestCase {
         name: "Image"
 
@@ -231,5 +236,10 @@ Item {
             compare(pkmImage.width, 256)
             compare(pkmImage.height, 256)
         }
+
+        function test_ktxImage() {
+            compare(ktxImage.width, 146)
+            compare(ktxImage.height, 80)
+        }
     }
 }