Bug#741901: antigrav: Patch for libpng1.6

[Gianfranco Costamagna]

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Control: tags 741901 + pending
> 

I played a little bit with the game and was fine.

Uploaded on deferred/6, let me know if I have to cancel or delay it
any longer.

cheers,

Gianfranco


> Dear maintainer,
> 
> I've prepared the attached patch for the libpng transition. 
> However, I currently can only provide the patch but not test it, 
> especially the "write png" part.
> 
> Therefore any feedback is appreciated.
> 
> -- Tobi
> 
> Regards. diff -Nru antigrav-0.0.3/debian/changelog
> antigrav-0.0.3/debian/changelog --- antigrav-0.0.3/debian/changelog
> 2014-09-02 22:51:53.000000000 +0200 +++
> antigrav-0.0.3/debian/changelog	2016-01-19 08:02:38.000000000
> +0100 @@ -1,3 +1,10 @@ +antigrav (0.0.3-6.1) UNRELEASED;
> urgency=medium + +  * Non-maintainer upload. +  * Fix for libpng16
> (Closes: #741901) + + -- Tobias Frost <tobi at debian.org>  Tue, 19
> Jan 2016 08:01:54 +0100 + antigrav (0.0.3-6) unstable; urgency=low
> 
> [ Evgeni Golov ] diff -Nru
> antigrav-0.0.3/debian/patches/06-libpng16.patch
> antigrav-0.0.3/debian/patches/06-libpng16.patch ---
> antigrav-0.0.3/debian/patches/06-libpng16.patch	1970-01-01
> 01:00:00.000000000 +0100 +++
> antigrav-0.0.3/debian/patches/06-libpng16.patch	2016-01-19
> 09:35:18.000000000 +0100 @@ -0,0 +1,90 @@ +Description: Patch for
> libpng1.6 API change +Author: Tobias Frost <tobi at debian.org> 
> +Bug-Debian:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741901 
> +Last-Update: 2016-01-19 +--- +This patch header follows DEP-3:
> http://dep.debian.net/deps/dep3/ +--- a/src/m3dtexture.cpp ++++
> b/src/m3dtexture.cpp +@@ -249,7 +249,7 @@ + 		return -1; + 	} + +-
> if(setjmp(pngPtr->jmpbuf)) ++	if(setjmp(png_jmpbuf(pngPtr))) + 	{ +
> perror("setjmp"); + 		png_destroy_read_struct(&pngPtr, &pngInfoPtr,
> NULL); +@@ -274,7 +274,7 @@ + 		ckey = 0; + 	} + +-	if(colorType !=
> PNG_COLOR_TYPE_RGB_ALPHA || bitDepth != 8 || pngInfoPtr->channels
> != 4) ++	if(colorType != PNG_COLOR_TYPE_RGB_ALPHA || bitDepth != 8
> || png_get_channels(pngPtr, pngInfoPtr) != 4) + 	{ +
> fprintf(stderr, "Only 32-bit RGBA png images are supported\n"); +
> return -1; +@@ -283,7 +283,7 @@ + 	png_read_update_info(pngPtr,
> pngInfoPtr);
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