Remove extra parameter from S9xInitSound

Explain disabling USE_SLANG in how2compile.txt

apu/apu.cpp

@@ -181,7 +181,7 @@ static void UpdatePlaybackRate(void)
     }
 }
 
-bool8 S9xInitSound(int buffer_ms, int unused2)
+bool8 S9xInitSound(int buffer_ms)
 {
     // The resampler and spc unit use samples (16-bit short) as arguments.
     int buffer_size_samples = MINIMUM_BUFFER_SIZE;

apu/apu.h

@@ -30,7 +30,7 @@ void S9xAPUSaveState (uint8 *);
 void S9xDumpSPCSnapshot (void);
 bool8 S9xSPCDump (const char *);
 
-bool8 S9xInitSound (int, int);
+bool8 S9xInitSound (int);
 bool8 S9xOpenSoundDevice (void);
 
 bool8 S9xSyncSound (void);

docs/porting.html

@@ -178,11 +178,10 @@
 		<p>
 			Deallocates the allocations made by <code>S9xInitAPU</code> function.
 		</p>
-		<h3><code>bool8 S9xInitSound (int buffer_ms, int lag_ms)</code></h3>
+		<h3><code>bool8 S9xInitSound (int buffer_ms)</code></h3>
 		<p>
 			Allocates memory for mixing and queueing SNES sound data, does more sound code initialization and opens the host system's sound device by calling <code>S9xOpenSoundDevice</code>, a function you must provide. Before calling this function you must set up <code>Settings.SoundSync</code>, <code>Settings.SoundPlaybackRate</code>, and <code>Settings.SoundInputRate</code>. (see section below)<br>
 			<code>buffer_ms</code>, given in milliseconds, is the memory buffer size for queueing sound data. Leave this at 0 to use the suggested default.<br>
-			<code>lag_ms</code> is no longer used.
 		</p>
 		<h3><code>void S9xReset (void)</code></h3>
 		<p>

gtk/src/gtk_sound.cpp

@@ -144,10 +144,7 @@ S9xPortSoundInit ()
 
         Settings.SoundPlaybackRate = playback_rates[gui_config->sound_playback_rate];
 
-        if (gui_config->sound_driver == sdl_driver)
-            S9xInitSound(0, 0);
-        else
-            S9xInitSound(0, 0);
+        S9xInitSound(0);
 
         S9xSetSoundMute (false);
     }

libretro/libretro.cpp

@@ -1227,14 +1227,7 @@ void retro_init(void)
         exit(1);
     }
 
-    //very slow devices will still pop
-
-    //this needs to be applied to all snes9x cores
-
-    //increasing the buffer size does not cause extra lag(tested with 1000ms buffer)
-    //bool8 S9xInitSound (int buffer_ms, int lag_ms)
-
-    S9xInitSound(32, 0); //give it a 1.9 frame long buffer, or 1026 samples.  The audio buffer is flushed every 128-132 samples anyway, so it won't get anywhere near there.
+    S9xInitSound(0);
 
     S9xSetSoundMute(FALSE);
     S9xSetSamplesAvailableCallback(S9xAudioCallback, NULL);

macosx/mac-snes9x.cpp

@@ -460,5 +460,5 @@ void SNES9X_Quit (void)
 
 void SNES9X_InitSound (void)
 {
-	S9xInitSound(0, 0);
+	S9xInitSound(0);
 }

unix/configure

@@ -1,7 +1,7 @@
 #! /bin/sh
-# From configure.ac Revision: 1.58 .
+# From configure.ac Revision: 1.59 .
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for Snes9x 1.58.
+# Generated by GNU Autoconf 2.69 for Snes9x 1.59.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -578,8 +578,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='Snes9x'
 PACKAGE_TARNAME='snes9x'
-PACKAGE_VERSION='1.58'
-PACKAGE_STRING='Snes9x 1.58'
+PACKAGE_VERSION='1.59'
+PACKAGE_STRING='Snes9x 1.59'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1280,7 +1280,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures Snes9x 1.58 to adapt to many kinds of systems.
+\`configure' configures Snes9x 1.59 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1350,7 +1350,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of Snes9x 1.58:";;
+     short | recursive ) echo "Configuration of Snes9x 1.59:";;
    esac
   cat <<\_ACEOF
 
@@ -1468,7 +1468,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-Snes9x configure 1.58
+Snes9x configure 1.59
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1871,7 +1871,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by Snes9x $as_me 1.58, which was
+It was created by Snes9x $as_me 1.59, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -6917,7 +6917,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by Snes9x $as_me 1.58, which was
+This file was extended by Snes9x $as_me 1.59, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -6970,7 +6970,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-Snes9x config.status 1.58
+Snes9x config.status 1.59
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

unix/unix.cpp

@@ -1537,7 +1537,7 @@ int main (int argc, char **argv)
 		exit(1);
 	}
 
-	S9xInitSound(unixSettings.SoundBufferSize, 0);
+	S9xInitSound(unixSettings.SoundBufferSize);
 	S9xSetSoundMute(TRUE);
 
 	S9xReportControllers();

win32/docs/how2compile.txt

@@ -24,10 +24,14 @@ NOTE: Unicode support requires a special zlib build - see the end of the zlib en
       a libpng project that builds appropriately.
       The libpng source files should reside in win32/libpng/src
 
-    * glslang (optional, USE_SLANG define, enabled by default) - the default solution includes
+    * glslang and SPIRV-Cross (optional, USE_SLANG define, enabled by default)
+      These are needed to build support for .slang shaders. The default solution includes
       a series of projects encompassing glslang that build appropriately.
       The glslang source files should reside in win32/glslang/src
-      USE_SLANG also requires SPIRV-Cross, which should be placed in shaders/SPIRV-Cross
+      The SPIRV-Cross source files should be placed in shaders/SPIRV-Cross
+
+      If wish to compile without USE_SLANG, you must remove the files named
+      spirv_*.cpp from the Visual Studio project's Shaders group.
 
 - To compile Snes9x:
     Start up VS2017.

win32/win32_sound.cpp

@@ -51,7 +51,7 @@ bool ReInitSound()
 	if(S9xSoundOutput)
 		S9xSoundOutput->DeInitSoundOutput();
 
-    return S9xInitSound(0, 0);
+    return S9xInitSound(0);
 }
 
 void CloseSoundDevice() {