Add comment explaining bj is not use when l_data_size == 0

[openjpeg.git] / src / lib / openjp2 / opj_includes.h

diff --git a/src/lib/openjp2/opj_includes.h b/src/lib/openjp2/opj_includes.h
index 76380962f972761be4f94c440cdcdfd3ecb42886..f855b7c6694045ebb1108a188971fa28e6d00f0e 100644 (file)
--- a/src/lib/openjp2/opj_includes.h
+++ b/src/lib/openjp2/opj_includes.h
@@ -1,6 +1,11 @@
 /*
+ * The copyright in this software is being made available under the 2-clauses 
+ * BSD License, included below. This software may be subject to other third 
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
  * Copyright (c) 2005, Herve Drolon, FreeImage Team
- * Copyright (c) 2008;2011-2012, Centre National d'Etudes Spatiales (CNES), France 
+ * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR 
  * Copyright (c) 2012, CS Systemes d'Information, France
  * All rights reserved.
  *
@@ -113,29 +118,65 @@
        #endif
 #endif
 
+
+
 /* MSVC before 2013 and Borland C do not have lrintf */
-#if defined(_MSC_VER) && (_MSC_VER < 1800) || defined(__BORLANDC__)
-static INLINE long lrintf(float f){
+#if defined(_MSC_VER)
+#include <intrin.h>
+static INLINE long opj_lrintf(float f){
 #ifdef _M_X64
-    return (long)((f>0.0f) ? (f + 0.5f):(f -0.5f));
-#else
+       return _mm_cvt_ss2si(_mm_load_ss(&f));
+
+       /* commented out line breaks many tests */
+  /* return (long)((f>0.0f) ? (f + 0.5f):(f -0.5f)); */
+#elif defined(_M_IX86)
     int i;
- 
-    _asm{
+     _asm{
         fld f
         fistp i
     };
  
     return i;
+#else 
+       return (long)((f>0.0f) ? (f + 0.5f) : (f - 0.5f));
+#endif
+}
+#elif defined(__BORLANDC__)
+static INLINE long opj_lrintf(float f) {
+#ifdef _M_X64
+     return (long)((f>0.0f) ? (f + 0.5f):(f -0.5f));
+#else
+       int i;
+
+       _asm {
+               fld f
+                       fistp i
+       };
+
+       return i;
 #endif
 }
+#else
+static INLINE long opj_lrintf(float f) {
+       return lrintf(f);
+}
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER < 1400)
+       #define vsnprintf _vsnprintf
+#endif
+
+/* MSVC x86 is really bad at doing int64 = int32 * int32 on its own. Use intrinsic. */
+#if defined(_MSC_VER) && (_MSC_VER >= 1400) && !defined(__INTEL_COMPILER) && defined(_M_IX86)
+#      include <intrin.h>
+#      pragma intrinsic(__emul)
 #endif
 
 #include "opj_inttypes.h"
 #include "opj_clock.h"
 #include "opj_malloc.h"
-#include "function_list.h"
 #include "event.h"
+#include "function_list.h"
 #include "bio.h"
 #include "cio.h"