From 2d21e59b54dcaafe1ee480438b63460fae4afdd6 Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Tue, 15 May 2001 15:52:10 +0000
Subject: [PATCH] MSVC++ doesn't have long long, but does have __int64.

---
 simgear/io/lowlevel.cxx  | 22 +++++++++++-----------
 simgear/io/lowlevel.hxx  | 26 ++++++++++++++++++++++----
 simgear/io/sg_binobj.cxx |  6 +++---
 3 files changed, 36 insertions(+), 18 deletions(-)

diff --git a/simgear/io/lowlevel.cxx b/simgear/io/lowlevel.cxx
index 57a6e0f6..0015bff3 100644
--- a/simgear/io/lowlevel.cxx
+++ b/simgear/io/lowlevel.cxx
@@ -79,7 +79,7 @@ void sgReadDouble ( gzFile fd, double *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned long long*)var);
+        sgEndianSwap( (uint64*)var);
     }
 }
 
@@ -87,7 +87,7 @@ void sgReadDouble ( gzFile fd, double *var )
 void sgWriteDouble ( gzFile fd, const double var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned long long*)&var);
+        sgEndianSwap( (uint64*)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(double) ) != sizeof(double) ) {
         write_error = true ;
@@ -165,24 +165,24 @@ void sgWriteLong ( gzFile fd, const long int var )
 }
 
 
-void sgReadLongLong ( gzFile fd, long long int *var )
+void sgReadLongLong ( gzFile fd, int64 *var )
 {
-    if ( gzread ( fd, var, sizeof(long long int) ) != sizeof(long long int) ) {
+    if ( gzread ( fd, var, sizeof(int64) ) != sizeof(int64) ) {
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned long long int*)var);
+        sgEndianSwap( (uint64*)var);
     }
 }
 
 
-void sgWriteLongLong ( gzFile fd, const long long int var )
+void sgWriteLongLong ( gzFile fd, const int64 var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned long long*)&var);
+        sgEndianSwap( (uint64*)&var);
     }
-    if ( gzwrite ( fd, (void *)(&var), sizeof(long long int) )
-         != sizeof(long long int) )
+    if ( gzwrite ( fd, (void *)(&var), sizeof(int64) )
+         != sizeof(int64) )
     {
         write_error = true ;
     }
@@ -273,7 +273,7 @@ void sgReadDouble ( gzFile fd, const unsigned int n, double *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned long long*)var++);
+            sgEndianSwap( (uint64*)var++);
         }
     }
 }
@@ -286,7 +286,7 @@ void sgWriteDouble ( gzFile fd, const unsigned int n, const double *var )
         double *ptr = swab;
         memcpy( swab, var, sizeof(double) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned long long*)ptr++);
+            sgEndianSwap( (uint64*)ptr++);
         }
         var = swab;
     }
diff --git a/simgear/io/lowlevel.hxx b/simgear/io/lowlevel.hxx
index dfc38162..b866df2e 100644
--- a/simgear/io/lowlevel.hxx
+++ b/simgear/io/lowlevel.hxx
@@ -38,6 +38,13 @@
 
 #include <plib/sg.h>
 
+#ifdef _MSC_VER
+typedef __int64 int64;
+typedef __int64 uint64;
+#else
+typedef long long int64;
+typedef unsigned long long uint64;
+#endif
 
 // Note that output is written in little endian form (and converted as
 // necessary for big endian machines)
@@ -54,8 +61,8 @@ void sgReadInt ( gzFile fd, int *var ) ;
 void sgWriteInt ( gzFile fd, const int var ) ;
 void sgReadLong ( gzFile fd, long int *var ) ;
 void sgWriteLong ( gzFile fd, const long int var ) ;
-void sgReadLongLong ( gzFile fd, long long int *var ) ;
-void sgWriteLongLong ( gzFile fd, const long long int var ) ;
+void sgReadLongLong ( gzFile fd, int64 *var ) ;
+void sgWriteLongLong ( gzFile fd, const int64 var ) ;
 void sgReadUShort ( gzFile fd, unsigned short *var ) ;
 void sgWriteUShort ( gzFile fd, const unsigned short var ) ;
 void sgReadShort ( gzFile fd, short *var ) ;
@@ -143,7 +150,8 @@ inline void sgEndianSwap(unsigned int *x) {
         (( *x << 24 ) & 0xFF000000 ) ;
 }
   
-inline void sgEndianSwap(unsigned long long *x) {
+inline void sgEndianSwap(uint64 *x) {
+#ifndef _MSC_VER
     *x =
         (( *x >> 56 ) & 0x00000000000000FFULL ) | 
         (( *x >> 40 ) & 0x000000000000FF00ULL ) | 
@@ -153,7 +161,17 @@ inline void sgEndianSwap(unsigned long long *x) {
         (( *x << 24 ) & 0x0000FF0000000000ULL ) |
         (( *x << 40 ) & 0x00FF000000000000ULL ) |
         (( *x << 56 ) & 0xFF00000000000000ULL ) ;
+#else
+    *x =
+        (( *x >> 56 ) & 0x00000000000000FF ) | 
+        (( *x >> 40 ) & 0x000000000000FF00 ) | 
+        (( *x >> 24 ) & 0x0000000000FF0000 ) | 
+        (( *x >>  8 ) & 0x00000000FF000000 ) | 
+        (( *x <<  8 ) & 0x000000FF00000000 ) | 
+        (( *x << 24 ) & 0x0000FF0000000000 ) |
+        (( *x << 40 ) & 0x00FF000000000000 ) |
+        (( *x << 56 ) & 0xFF00000000000000 ) ;
+#endif
 }
-  
 
 #endif // _SG_LOWLEVEL_HXX
diff --git a/simgear/io/sg_binobj.cxx b/simgear/io/sg_binobj.cxx
index 237f24d9..54ffe7dd 100644
--- a/simgear/io/sg_binobj.cxx
+++ b/simgear/io/sg_binobj.cxx
@@ -255,9 +255,9 @@ bool SGBinObject::read_bin( const string& file ) {
 
 		double *dptr = (double *)ptr;
 		if ( sgIsBigEndian() ) {
-		    sgEndianSwap( (unsigned long long *)&(dptr[0]) );
-		    sgEndianSwap( (unsigned long long *)&(dptr[1]) );
-		    sgEndianSwap( (unsigned long long *)&(dptr[2]) );
+		    sgEndianSwap( (uint64 *)&(dptr[0]) );
+		    sgEndianSwap( (uint64 *)&(dptr[1]) );
+		    sgEndianSwap( (uint64 *)&(dptr[2]) );
 		}
 		gbs_center = Point3D( dptr[0], dptr[1], dptr[2] );
 		// cout << "Center = " << gbs_center << endl;
-- 
2.39.5