added _mesa_realloc()

2 files changed, 16 insertions, 4 deletions

diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index 8474ed4abcf..a1c974ca755 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -1,5 +1,3 @@
-/* $Id: imports.c,v 1.33 2003/03/04 16:33:53 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
  * Version:  5.1
@@ -181,6 +179,19 @@ _mesa_align_free(void *ptr)
 
 
 void *
+_mesa_realloc(void *oldBuffer, size_t oldSize, size_t newSize)
+{
+   const size_t copySize = (oldSize < newSize) ? oldSize : newSize;
+   void *newBuffer = _mesa_malloc(newSize);
+   if (newBuffer && copySize > 0)
+      _mesa_memcpy(newBuffer, oldBuffer, copySize);
+   if (oldBuffer)
+      _mesa_free(oldBuffer);
+   return newBuffer;
+}
+
+
+void *
 _mesa_memcpy(void *dest, const void *src, size_t n)
 {
 #if defined(XFree86LOADER) && defined(IN_MODULE)
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 51b19ba23e3..5a42cfaf8b5 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -1,5 +1,3 @@
-/* $Id: imports.h,v 1.20 2003/04/03 20:34:38 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
  * Version:  5.1
@@ -580,6 +578,9 @@ extern void
 _mesa_align_free( void *ptr );
 
 extern void *
+_mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );
+
+extern void *
 _mesa_memcpy( void *dest, const void *src, size_t n );
 
 extern void