X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgraphics%2Fpng%2Fpngloader.cpp;fp=source%2Fgraphics%2Fpng%2Fpngloader.cpp;h=50d58b3e3d9fabef282e1f2bf6574ba228f00998;hb=7f7f3c7494fe10a91215eaff208465636e9979ab;hp=15684b1ea5e57dfd678ef91de6d0db0304384c21;hpb=925757a29754bac7980b905b830d851811c50ba6;p=libs%2Fgui.git

diff --git a/source/graphics/png/pngloader.cpp b/source/graphics/png/pngloader.cpp
index 15684b1..50d58b3 100644
--- a/source/graphics/png/pngloader.cpp
+++ b/source/graphics/png/pngloader.cpp
@@ -66,10 +66,15 @@ void PngLoader::load(Image::Data &data)
 	int depth;
 	int color;
 	png_get_IHDR(priv->png, priv->info, &width, &height, &depth, &color, 0, 0, 0);
-	data.width = width;
-	data.height = height;
+	unsigned nchans = png_get_channels(priv->png, priv->info);
+
 	if(depth!=8)
 		throw unsupported_image_format("depth!=8");
+
+	data.width = width;
+	data.height = height;
+	data.stride = data.width*nchans;
+
 	switch(color)
 	{
 	case PNG_COLOR_TYPE_PALETTE:    data.fmt = COLOR_INDEX; break;
@@ -80,14 +85,12 @@ void PngLoader::load(Image::Data &data)
 	default: throw unsupported_image_format("unknown color type");
 	}
 
-	unsigned nchans = png_get_channels(priv->png, priv->info);
 	if(nchans==4 && data.fmt==RGB)
 		png_set_strip_alpha(priv->png);
 
-	unsigned rowstride = data.width*nchans;
-	data.data = new char[rowstride*data.height];
+	data.data = new char[data.stride*data.height];
 	for(unsigned y=0; y<data.height; ++y)
-		png_read_row(priv->png, reinterpret_cast<png_byte *>(data.data+rowstride*(data.height-1-y)), 0);
+		png_read_row(priv->png, reinterpret_cast<png_byte *>(data.data+data.stride*(data.height-1-y)), 0);
 
 	png_read_end(priv->png, 0);
 }