Lotta stuff for drawing etc.

[wxWidgets.git] / src / common / memory.cpp

diff --git a/src/common/memory.cpp b/src/common/memory.cpp
index d7d6c07461c424535979d46dfff80402a0a11910..a67263d476e9137ccadfb11ccd2104ee5f979b2e 100644 (file)
--- a/src/common/memory.cpp
+++ b/src/common/memory.cpp
@@ -46,7 +46,8 @@
     #include <fstream>
 #endif
 
-#if !defined(__WATCOMC__) && !defined(__VMS__) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
+#if !defined(__WATCOMC__) && !(defined(__VMS__) && ( __VMS_VER < 70000000 ) )\
+     && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
 #include <memory.h>
 #endif
 
@@ -472,6 +473,11 @@ int wxDebugContext::debugLevel = 1;
 bool wxDebugContext::debugOn = TRUE;
 wxMemStruct *wxDebugContext::checkPoint = NULL;
 
+// For faster alignment calculation
+static wxMarkerType markerCalc[2];
+int wxDebugContext::m_balign = (int)((char *)&markerCalc[1] - (char*)&markerCalc[0]);
+int wxDebugContext::m_balignmask = (int)((char *)&markerCalc[1] - (char*)&markerCalc[0]) - 1;
+
 wxDebugContext::wxDebugContext(void)
 {
 //  m_streamBuf = new wxDebugStreamBuf;
@@ -595,6 +601,9 @@ char * wxDebugContext::StartPos (const char * caller)
 
   I don't know how portable this stuff is, but it seems to work for me at
   the moment. It would be real nice if I knew more about this!
+
+  // Note: this function is now obsolete (along with CalcAlignment)
+  // because the calculations are done statically, for greater speed.
 */
 size_t wxDebugContext::GetPadding (const size_t size)
 {
@@ -602,11 +611,22 @@ size_t wxDebugContext::GetPadding (const size_t size)
     return (pad) ? sizeof(wxMarkerType) - pad : 0;
 }
 
-
-
 size_t wxDebugContext::PaddedSize (const size_t size)
 {
+    // Added by Terry Farnham <TJRT@pacbell.net> to replace
+    // slow GetPadding call.
+       int padb;
+
+       padb = size & m_balignmask;
+       if(padb)
+               return(size + m_balign - padb);
+       else
+               return(size);
+
+// Old (slow) code
+#if 0
     return size + GetPadding (size);
+#endif
 }
 
 /*
@@ -1003,8 +1023,6 @@ void operator delete (void * buf)
 #if defined(__VISUALC__) && (__VISUALC__ >= 1200)
 void operator delete(void* pData, wxChar* /* fileName */, int /* lineNum */)
 {
-// ::operator delete(pData);
-  // JACS 21/11/1998: surely we need to call wxDebugFree?
   wxDebugFree(pData, FALSE);
 }
 // New operator 21/11/1998