From 44d7663a495d74275eceb3c3a5d36cf1ed060d3d Mon Sep 17 00:00:00 2001
From: yinsimei
Date: Sat, 1 Jul 2017 13:42:30 +0200
Subject: SLUDGE: read headless png sprites

---
 engines/sludge/imgloader.cpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'engines/sludge/imgloader.cpp')

diff --git a/engines/sludge/imgloader.cpp b/engines/sludge/imgloader.cpp
index bfac7fa5da..002e8501b0 100644
--- a/engines/sludge/imgloader.cpp
+++ b/engines/sludge/imgloader.cpp
@@ -44,10 +44,22 @@ bool ImgLoader::loadImage(Common::SeekableReadStream *stream, Graphics::Surface
 	return true;
 }
 
-bool ImgLoader::loadPNGImage(Common::SeekableReadStream *stream, Graphics::Surface *dest) {
+bool ImgLoader::loadPNGImage(Common::SeekableReadStream *stream, Graphics::Surface *dest, bool checkSig) {
 	::Image::PNGDecoder png;
+
+	// set skip signature
+	if (!checkSig) {
+		png.setSkipSignature(true);
+	}
+
 	if (!png.loadStream(*stream))
 		return false;
+
+	// set value back
+	if (!checkSig) {
+		png.setSkipSignature(false);
+	}
+
 	const Graphics::Surface *sourceSurface = png.getSurface();
 	Graphics::Surface *pngSurface = sourceSurface->convertTo(*g_sludge->getScreenPixelFormat(), png.getPalette());
 	dest->copyFrom(*pngSurface);
-- 
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