Patch for a compatibility problem (#365)

flathub/org.zdoom.GZDoom#78

Author: Eonfge

gzdoom/0001-Fix-libxmp-playback.patch

@@ -0,0 +1,27 @@
+From f6facdaa683e7159b7569d5287a088da352a7c92 Mon Sep 17 00:00:00 2001
+From: Andrew Rabert <[email protected]>
+Date: Sat, 11 Jan 2025 00:26:08 -0500
+Subject: [PATCH] Fix libxmp playback Fixes crashing when the int16_buffer is
+ smaller than the desired len. Particularly, I was seeing the int16_buffer
+ with a size of 0.
+
+---
+ source/streamsources/music_libxmp.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/source/streamsources/music_libxmp.cpp b/source/streamsources/music_libxmp.cpp
+index e235b06..999e046 100644
+--- a/source/streamsources/music_libxmp.cpp
++++ b/source/streamsources/music_libxmp.cpp
+@@ -126,7 +126,7 @@ bool XMPSong::SetSubsong(int subsong)
+ 
+ bool XMPSong::GetData(void *buffer, size_t len)
+ {
+-	if ((len / 4) < int16_buffer.size())
++	if ((len / 4) > int16_buffer.size())
+ 		int16_buffer.resize(len / 4);
+ 
+ 	int ret = xmp_play_buffer(context, (void*)int16_buffer.data(), len / 2, m_Looping? INT_MAX : 0);
+-- 
+2.47.1
+

gzdoom/zmusic.json

@@ -15,6 +15,10 @@
                 "stable-only": true,
                 "url-template": "https://github.com/zdoom/ZMusic/archive/$version.tar.gz"
           }
+        },
+        {
+            "type": "patch",
+            "path": "0001-Fix-libxmp-playback.patch"
         }
     ]
 }