Mercurial > sdl-ios-xcode
diff configure.in @ 1047:ffaaf7ecf685
Altivec-optimized blitters!
Vast majority of this work is compliments of Bob Ippolito.
http://www.devolution.com/pipermail/sdl/2005-February/067466.html and many
other posts.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 17 Apr 2005 10:19:22 +0000 |
| parents | 974ba6ae0fa3 |
| children | 3e637850c02b |
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--- a/configure.in Sun Apr 17 10:16:30 2005 +0000 +++ b/configure.in Sun Apr 17 10:19:22 2005 +0000 @@ -1839,17 +1839,18 @@ { AC_MSG_CHECKING(for GCC Altivec instruction support) have_gcc_altivec=no + save_CFLAGS="${CFLAGS}" + CFLAGS="${CFLAGS} -DGCC_ALTIVEC -DUSE_ALTIVEC_BLITTERS -faltivec" AC_TRY_COMPILE([ + vector unsigned int vzero() { + return vec_splat_u32(0); + } ],[ - asm volatile ("mtspr 256, %0\n\t" - "vand %%v0, %%v0, %%v0" - : - : "r" (-1)); ],[ have_gcc_altivec=yes ]) - if test x$have_gcc_altivec = xyes; then - CFLAGS="$CFLAGS -DGCC_ALTIVEC" + if test x$have_gcc_altivec = xno; then + CFLAGS="${save_CFLAGS}" fi AC_MSG_RESULT($have_gcc_altivec) } @@ -2564,6 +2565,7 @@ CheckMacGL CheckPTHREAD CheckSIGACTION + CheckAltivec # If either the audio or CD driver is used, add the AudioUnit framework if test x$enable_audio = xyes -o x$enable_cdrom = xyes; then SYSTEM_LIBS="$SYSTEM_LIBS -framework AudioToolbox -framework AudioUnit"