From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Fri, 18 Nov 2016 19:03:28 +0000 (+0000)
Subject: Detect AltiVec support on AmigaOS 4
X-Git-Tag: 1.5.2~35
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4ad94b2963268ea57a77dcd8af8a9a6fe5db70a7;p=libjpeg-turbo

Detect AltiVec support on AmigaOS 4
---

diff --git a/simd/jsimd_powerpc.c b/simd/jsimd_powerpc.c
index 42dc1e0..f447bf6 100644
--- a/simd/jsimd_powerpc.c
+++ b/simd/jsimd_powerpc.c
@@ -14,6 +14,11 @@
  * PowerPC architecture.
  */
 
+#ifdef __amigaos4__
+/* This must be defined first as it re-defines GLOBAL otherwise */
+#include <proto/exec.h>
+#endif
+
 #define JPEG_INTERNALS
 #include "../jinclude.h"
 #include "../jpeglib.h"
@@ -116,6 +121,11 @@ init_simd (void)
     if (bufsize > SOMEWHAT_SANE_PROC_CPUINFO_SIZE_LIMIT)
       break;
   }
+#elif defined(__amigaos4__)
+  uint32 altivec = 0;
+  IExec->GetCPUInfoTags(GCIT_VectorUnit, &altivec, TAG_DONE);
+  if(altivec == VECTORTYPE_ALTIVEC)
+    simd_support |= JSIMD_ALTIVEC;
 #endif
 
   /* Force different settings through environment variables */