From 26c889088d45fb46741db9bde544578443671af1 Mon Sep 17 00:00:00 2001
From: Cacodemon345 <wahil1976@outlook.com>
Date: Mon, 25 Sep 2023 04:17:47 +0600
Subject: [PATCH] Fix compressed format support on GME when using miniz

---
 thirdparty/CMakeLists.txt                     |  2 +-
 thirdparty/game-music-emu/gme/CMakeLists.txt  | 20 +++++++++++--------
 thirdparty/game-music-emu/gme/Data_Reader.cpp |  3 ++-
 thirdparty/game-music-emu/gme/Data_Reader.h   |  3 ++-
 4 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/thirdparty/CMakeLists.txt b/thirdparty/CMakeLists.txt
index 8a7ac65..6c7b6fd 100644
--- a/thirdparty/CMakeLists.txt
+++ b/thirdparty/CMakeLists.txt
@@ -1,3 +1,4 @@
+add_subdirectory(miniz)
 # GME is not currently released in a way that's conducive to using as a system
 # library. Nevertheless at least one person tried, and so the ability to use a
 # system copy exists soley to placate people following distro guidelines to the
@@ -19,7 +20,6 @@
 	add_subdirectory(game-music-emu)
 #endif()
 
-add_subdirectory(miniz)
 add_subdirectory(dumb)
 add_subdirectory(adlmidi)
 add_subdirectory(opnmidi)
diff --git a/thirdparty/game-music-emu/gme/CMakeLists.txt b/thirdparty/game-music-emu/gme/CMakeLists.txt
index 0576268..6449be0 100644
--- a/thirdparty/game-music-emu/gme/CMakeLists.txt
+++ b/thirdparty/game-music-emu/gme/CMakeLists.txt
@@ -21,7 +21,8 @@ if(NOT BUILD_SHARED_LIBS)
     set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
 endif()
 
-find_package(ZLIB QUIET)
+# [ZMusic] We use miniz now.
+# find_package(ZLIB QUIET)
 
 # Ay_Apu is very popular around here
 if (USE_GME_AY OR USE_GME_KSS)
@@ -165,17 +166,20 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR})
 # Add library to be compiled.
 add_library(gme OBJECT ${libgme_SRCS})
 
-if(ZLIB_FOUND)
-    message(" ** ZLib library located, compressed file formats will be supported")
+# Commented our since we use miniz
+#if(ZLIB_FOUND)
+#   message(" ** ZLib library located, compressed file formats will be supported")
     target_compile_definitions(gme PRIVATE -DHAVE_ZLIB_H)
+    target_link_libraries(gme PRIVATE miniz)
+
     # [ZMusic] Switch to modern target for better transitive handling.
-    target_link_libraries(gme PRIVATE ZLIB::ZLIB)
+    # target_link_libraries(gme PRIVATE ZLIB::ZLIB)
     # Is not to be installed though
 
-    set(PKG_CONFIG_ZLIB -lz) # evaluated in libgme.pc.in
-else()
-    message("ZLib library not found, disabling support for compressed formats such as VGZ")
-endif()
+#   set(PKG_CONFIG_ZLIB -lz) # evaluated in libgme.pc.in
+#else()
+#    message("ZLib library not found, disabling support for compressed formats such as VGZ")
+#endif()
 
 # [ZMusic] Interface include directories
 target_include_directories(gme INTERFACE ..)
diff --git a/thirdparty/game-music-emu/gme/Data_Reader.cpp b/thirdparty/game-music-emu/gme/Data_Reader.cpp
index 1556c32..bbd9820 100644
--- a/thirdparty/game-music-emu/gme/Data_Reader.cpp
+++ b/thirdparty/game-music-emu/gme/Data_Reader.cpp
@@ -21,7 +21,8 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
 #include "blargg_source.h"
 
 #ifdef HAVE_ZLIB_H
-#include <zlib.h>
+// [ZMusic] Use miniz.
+#include <miniz.h>
 #include <stdlib.h>
 #include <errno.h>
 static const unsigned char gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */
diff --git a/thirdparty/game-music-emu/gme/Data_Reader.h b/thirdparty/game-music-emu/gme/Data_Reader.h
index 5935776..8ff82f3 100644
--- a/thirdparty/game-music-emu/gme/Data_Reader.h
+++ b/thirdparty/game-music-emu/gme/Data_Reader.h
@@ -7,7 +7,8 @@
 #include "blargg_common.h"
 
 #ifdef HAVE_ZLIB_H
-#include <zlib.h>
+// [ZMusic] Use miniz.
+#include <miniz.h>
 #endif
 
 // Supports reading and finding out how many bytes are remaining