Read grayscale JP2000 as grayscale

Return a real grayscale qimage instead of an 8-bit indexed qimage.

Change-Id: I6f47bfe4268a675f8ce54f9daed10e94feb9e309
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/src/plugins/imageformats/jp2/qjp2handler.cpp b/src/plugins/imageformats/jp2/qjp2handler.cpp
index 3fe3b65..8bb791d 100644
--- a/src/plugins/imageformats/jp2/qjp2handler.cpp
+++ b/src/plugins/imageformats/jp2/qjp2handler.cpp
@@ -586,10 +586,7 @@ bool Jpeg2000JasperReader::read(QImage *pImage)
         if (hasAlpha) {
             qtImage = QImage(qtWidth, qtHeight, QImage::Format_ARGB32);
         } else {
-            qtImage = QImage(qtWidth, qtHeight, QImage::Format_Indexed8);
-            qtImage.setColorCount(256);
-            for (int c = 0; c < 256; ++c)
-                qtImage.setColor(c, qRgb(c,c,c));
+            qtImage = QImage(qtWidth, qtHeight, QImage::Format_Grayscale8);
         }
     }