PNG: call png_set_interlace_handling() before calling png_read_update_info()

This matches the documentation, information from the PNG bug tracker and the
behavior of example decoders off the net. It fixes warnings thrown from the PNG
decoder

1 files changed, 1 insertions, 0 deletions

diff --git a/graphics/decoders/png.cpp b/graphics/decoders/png.cpp
index bfaab6dc35..4f917b44b1 100644
--- a/graphics/decoders/png.cpp
+++ b/graphics/decoders/png.cpp
@@ -191,6 +191,7 @@ bool PNGDecoder::loadStream(Common::SeekableReadStream &stream) {
 	}
 
 	// After the transformations have been registered, the image data is read again.
+	png_set_interlace_handling(pngPtr);
 	png_read_update_info(pngPtr, infoPtr);
 	png_get_IHDR(pngPtr, infoPtr, &w, &h, &bitDepth, &colorType, NULL, NULL, NULL);
 	width = w;