* Altivec IDCT and motion compensation, based on Paul Mackerras's mpeg2dec

[vlc] / configure.in

diff --git a/configure.in b/configure.in
index 61e38dbcfdbb5143304b515a58025d6479716edb..2b7f853ec25ea9e5f282693c50615761b97bbda3 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -239,6 +239,11 @@ AC_TRY_COMPILE([void quux(){void *p;asm("xorps %%xmm1,%%xmm2"::"r"(p));}],,
   ACCEL_MODULES="${ACCEL_MODULES} ${SSE_MODULES}"
   AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
 
+AC_MSG_CHECKING([if \$CC groks Altivec inline assembly])
+AC_TRY_COMPILE([void quux(){void *p;asm("mtspr 256,%0"::"r"(-1));}],,
+  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
+  AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
+
 dnl
 dnl  libdvdcss: check for DVD ioctls
 dnl
@@ -354,20 +359,19 @@ dnl
 AC_ARG_ENABLE(mmx,
 [  --disable-mmx           Disable MMX optimizations (default enabled for x86)],
 [ if test x$enableval = xyes; then ARCH="${ARCH} mmx";
-  BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
+    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
 [ if test x${host_cpu} = xi686 -o x${host_cpu} = xi586 -o x${host_cpu} = xx86 -o x${host_cpu} = xi386; then ARCH="${ARCH} mmx";
-  BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
+    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
 
 dnl
 dnl  AltiVec acceleration
 dnl
 AC_ARG_ENABLE(altivec,
-[  --enable-altivec        Enable altivec optimizations (default disabled since it is broken)],
-[ if test x$enableval = xyes; then ARCH="${ARCH} altivec"
-    BUILTINS="${BUILTINS} idctaltivec"
-    LIB_IDCTALTIVEC="-framework vecLib"
-  fi ])
-#[ if test -d /System/Library/Frameworks/vecLib.framework; then ARCH="${ARCH} altivec"; PLUGINS="${PLUGINS} idctaltivec"; fi ])
+[  --disable-altivec       Disable altivec optimizations (default enabled on PPC)],
+[ if test x$enableval = xyes; then ARCH="${ARCH} altivec";
+    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
+[ if test x${host_cpu} = xpowerpc; then ARCH="${ARCH} altivec";
+    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
 
 dnl
 dnl  Debugging mode
@@ -394,7 +398,7 @@ AC_ARG_ENABLE(trace,
 [ if test x$enableval = xyes; then TRACE=1; fi ])
 
 dnl
-dnl  Trace mode
+dnl  Profiling
 dnl
 GPROF=0
 AC_ARG_ENABLE(gprof,
@@ -601,12 +605,14 @@ AC_ARG_ENABLE(macosx,
      LIB_MACOSX="-framework CoreAudio -framework Carbon -framework AGL"
      LIB_TS="${LIB_TS} -framework AGL -framework Carbon"
      LIB_SDL="${LIB_SDL} -framework AGL -framework Carbon"
+        LIB_ALTIVEC="-framework vecLib"
    fi],
   [AC_CHECK_HEADERS(Carbon/Carbon.h,
      BUILTINS="${BUILTINS} macosx"
      LIB_MACOSX="-framework CoreAudio -framework Carbon -framework AGL"
      LIB_TS="${LIB_TS} -framework AGL -framework Carbon"
      LIB_SDL="${LIB_SDL} -framework AGL -framework Carbon"
+        LIB_ALTIVEC="-framework vecLib"
    )])
 
 dnl
@@ -921,7 +927,7 @@ AC_SUBST(LIB_GGI)
 AC_SUBST(LIB_GLIDE)
 AC_SUBST(LIB_GNOME)
 AC_SUBST(LIB_GTK)
-AC_SUBST(LIB_IDCTALTIVEC)
+AC_SUBST(LIB_ALTIVEC)
 AC_SUBST(LIB_LIBDVDCSS)
 AC_SUBST(LIB_KDE)
 AC_SUBST(LIB_MACOSX)