Add detection and build support for libsoundtouch and so metaspu

Based on patches from Tobias Jakobi (liquidacid) in #3250391

desmume/configure.ac

@@ -178,6 +178,10 @@ AC_PROVIDE_IFELSE([PKG_PROG_PKG_CONFIG], [
     AC_SUBST(LIBAGG_CFLAGS)
     AC_SUBST(LIBAGG_LIBS)
 
+    PKG_CHECK_MODULES(LIBSOUNDTOUCH, soundtouch >= 1.5.0, HAVE_LIBSOUNDTOUCH=yes, HAVE_LIBSOUNDTOUCH=no)
+    AC_SUBST(LIBSOUNDTOUCH_CFLAGS)
+    AC_SUBST(LIBSOUNDTOUCH_LIBS)
+
     AC_PATH_PROG(UPDATEDESKTOP, [update-desktop-database])
   fi
 ],[
@@ -202,6 +206,13 @@ else
    AC_MSG_WARN([Antigrain library not found, HUD will be disabled])
 fi
 
+AM_CONDITIONAL([HAVE_LIBSOUNDTOUCH], [test "${HAVE_LIBSOUNDTOUCH}" = "yes"])
+if test "x$HAVE_LIBSOUNDTOUCH" = "xyes"; then
+   AC_DEFINE([HAVE_LIBSOUNDTOUCH])
+else
+   AC_MSG_WARN([SoundTouch library not found, pcsx2 resampler will be disabled])
+fi
+
 if test "x$FOUND_GLIB" = "xno"; then
    if test ! "x$GTK_MACOSX_HACK" = "xyes"; then
      AC_MSG_ERROR([Glib is required to build desmume])

desmume/src/Makefile.am

@@ -1,6 +1,6 @@
 include $(top_srcdir)/src/desmume.mk
 
-AM_CPPFLAGS += $(SDL_CFLAGS) $(GTHREAD_CFLAGS) $(X_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS)
+AM_CPPFLAGS += $(SDL_CFLAGS) $(GTHREAD_CFLAGS) $(X_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) $(LIBSOUNDTOUCH_CFLAGS)
 
 EXTRA_DIST = build.bat instruction_tabdef.inc thumb_tabdef.inc fs-linux.cpp fs-windows.cpp
 if HAVE_GDB_STUB
@@ -101,6 +101,10 @@ libdesmume_a_SOURCES += mic.cpp
 endif
 endif
 
+if HAVE_LIBSOUNDTOUCH
+libdesmume_a_SOURCES += metaspu/SndOut.cpp metaspu/SndOut.h metaspu/Timestretcher.cpp
+endif
+
 if HAVE_LIBAGG
 libdesmume_a_SOURCES += aggdraw.cpp aggdraw.h GPU_osd.cpp
 else

desmume/src/cli/Makefile.am

@@ -1,11 +1,11 @@
 SUBDIRS = doc
 include $(top_srcdir)/src/desmume.mk
 
-AM_CPPFLAGS += $(SDL_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) $(GLIB_CFLAGS) $(GTHREAD_CFLAGS)
+AM_CPPFLAGS += $(SDL_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) $(GLIB_CFLAGS) $(GTHREAD_CFLAGS) $(LIBSOUNDTOUCH_CFLAGS)
 
 bin_PROGRAMS = desmume-cli
 desmume_cli_SOURCES = main.cpp ../sndsdl.cpp ../ctrlssdl.h ../ctrlssdl.cpp ../driver.h ../driver.cpp
-desmume_cli_LDADD = ../libdesmume.a $(SDL_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS) $(GLIB_LIBS) $(GTHREAD_LIBS)
+desmume_cli_LDADD = ../libdesmume.a $(SDL_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS) $(GLIB_LIBS) $(GTHREAD_LIBS) $(LIBSOUNDTOUCH_LIBS)
 if HAVE_GDB_STUB
 desmume_cli_LDADD += ../gdbstub/libgdbstub.a
 endif

desmume/src/gtk-glade/Makefile.am

@@ -2,8 +2,9 @@ SUBDIRS = doc
 include $(top_srcdir)/src/desmume.mk
 
 AM_CPPFLAGS += $(SDL_CFLAGS) $(GTKGLEXT_CFLAGS) $(LIBGLADE_CFLAGS) \
-		$(GTHREAD_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) -DDATADIR=\"$(gladedir)/\" \
-		-DLOCALEDIR=\"$(localedir)\"
+		$(GTHREAD_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) \
+		$(LIBSOUNDTOUCH_CFLAGS) \
+		-DDATADIR=\"$(gladedir)/\" -DLOCALEDIR=\"$(localedir)\"
 AM_LDFLAGS += -rdynamic $(INTLLIBS)
 
 EXTRA_DIST = $(glade_DATA) desmume-glade.desktop
@@ -31,7 +32,8 @@ desmume_glade_SOURCES =  \
 
 desmume_glade_LDADD = ../libdesmume.a \
 			$(SDL_LIBS) $(GTKGLEXT_LIBS) $(LIBGLADE_LIBS) \
-			$(GTHREAD_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS)
+			$(GTHREAD_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS) \
+			$(LIBSOUNDTOUCH_LIBS)
 if HAVE_GDB_STUB
 desmume_glade_LDADD += ../gdbstub/libgdbstub.a
 endif

desmume/src/gtk/Makefile.am

@@ -1,7 +1,7 @@
 SUBDIRS = doc
 include $(top_srcdir)/src/desmume.mk
 
-AM_CPPFLAGS += $(SDL_CFLAGS) $(GTK_CFLAGS) $(GTHREAD_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS)
+AM_CPPFLAGS += $(SDL_CFLAGS) $(GTK_CFLAGS) $(GTHREAD_CFLAGS) $(ALSA_CFLAGS) $(LIBAGG_CFLAGS) $(LIBSOUNDTOUCH_CFLAGS)
 
 Applicationsdir = $(datadir)/applications
 Applications_DATA = desmume.desktop
@@ -20,7 +20,7 @@ desmume_SOURCES = \
 	cheatsGTK.h cheatsGTK.cpp \
 	main.cpp main.h
 desmume_LDADD = ../libdesmume.a \
-	$(SDL_LIBS) $(GTK_LIBS) $(GTHREAD_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS)
+	$(SDL_LIBS) $(GTK_LIBS) $(GTHREAD_LIBS) $(ALSA_LIBS) $(LIBAGG_LIBS) $(LIBSOUNDTOUCH_LIBS)
 if HAVE_GDB_STUB
 desmume_LDADD += ../gdbstub/libgdbstub.a
 endif