# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1147187387 0
# Node ID 398ac0f88e4dd9dd67b5147239451c17d1da690e
# Parent  5605a98201341a374371e3c8ec8cc6d89824e72c
Fixed bug #220

The AltiVec blitters don't compile, since they require __VEC__ to be enabled in
order for the compiler to understand "vector" and friends (i.e. do AltiVec)
But you don't want to turn AltiVec on globally, since then the code would only
run on a G4 (there are already runtime tests, before using the AltiVec
variants)

The solution here is to enable AltiVec locally, for the actual AltiVec code.

diff -r 5605a9820134 -r 398ac0f88e4d src/video/SDL_blit_A.c
--- a/src/video/SDL_blit_A.c	Tue May 09 08:52:54 2006 +0000
+++ b/src/video/SDL_blit_A.c	Tue May 09 15:09:47 2006 +0000
@@ -637,6 +637,9 @@
 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */
 
 #if SDL_ALTIVEC_BLITTERS
+#if __MWERKS__
+#pragma altivec_model on
+#endif
 #if HAVE_ALTIVEC_H
 #include <altivec.h>
 #endif
@@ -1406,6 +1409,9 @@
         dstp += dstskip;
     }
 }
+#if __MWERKS__
+#pragma altivec_model off
+#endif
 #endif /* SDL_ALTIVEC_BLITTERS */
 
 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
diff -r 5605a9820134 -r 398ac0f88e4d src/video/SDL_blit_N.c
--- a/src/video/SDL_blit_N.c	Tue May 09 08:52:54 2006 +0000
+++ b/src/video/SDL_blit_N.c	Tue May 09 15:09:47 2006 +0000
@@ -29,6 +29,9 @@
 /* Functions to blit from N-bit surfaces to other surfaces */
 
 #if SDL_ALTIVEC_BLITTERS
+#if __MWERKS__
+#pragma altivec_model on
+#endif
 #ifdef HAVE_ALTIVEC_H
 #include <altivec.h>
 #endif
@@ -830,6 +833,9 @@
     }
     return features;
 }
+#if __MWERKS__
+#pragma altivec_model off
+#endif
 #else
 /* Feature 1 is has-MMX */
 #define GetBlitFeatures() ((Uint32)(SDL_HasMMX() ? 1 : 0))