Added a new function "DevAssert", which is intended to provide assert-like functionality to Devel builds of Pcsx2. Developers: Check the code comments for more details.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1417 96395faa-99c1-11dd-bbfe-3dabce05a288

pcsx2/Exceptions.h

@@ -18,6 +18,8 @@
 
 #pragma once
 
+extern void DevAssert( bool condition, const char* msg );
+
 // This class provides an easy and clean method for ensuring objects are not copyable.
 class NoncopyableObject
 {
@@ -121,6 +123,14 @@ namespace Exception
 		{}
 	};
 	
+	class AssertionFailure : public LogicError
+	{
+	public:
+		explicit AssertionFailure( const std::string& msg="Assertion Failure" ) :
+		LogicError( msg ) {}
+		virtual ~AssertionFailure() throw() {}
+	};
+	
 	//////////////////////////////////////////////////////////////////////////////////
 	//
 	class OutOfMemory : public RuntimeError

pcsx2/Misc.cpp

@@ -139,6 +139,40 @@ const char *LabelGreets = { N_(
 	)
 };
 
+// ------------------------------------------------------------------------
+// Force DevAssert to *not* inline for devel/debug builds (allows using breakpoints to trap
+// assertions), and force it to inline for release builds (optimizes it out completely since
+// IsDevBuild is false).  Since Devel builds typically aren't enabled with Global Optimization/
+// LTCG, this currently isn't even necessary.  But might as well, in case we decide at a later
+// date to re-enable LTCG for devel.
+#ifdef PCSX2_DEVBUILD
+#	define DEVASSERT_INLINE __noinline
+#else
+#	define DEVASSERT_INLINE __forceinline
+#endif
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// Assertion tool for Devel builds, intended for sanity checking and/or bounds checking
+// variables in areas which are not performance critical.
+//
+// How it works: This function throws an exception of type Exception::AssertionFailure if
+// the assertion conditional is false.  Typically for the end-user, this exception is handled
+// by the general handler, which (should eventually) create some state dumps and other
+// information for troubleshooting purposes.
+//
+// From a debugging environment, you can trap your DevAssert by either breakpointing the
+// exception throw below, or by adding either Exception::AssertionFailure or
+// Exception::LogicError to your First-Chance Exception catch list (Visual Studio, under
+// the Debug->Exceptions menu/dialog).
+//
+DEVASSERT_INLINE void DevAssert( bool condition, const char* msg )
+{
+	if( IsDevBuild && !condition )
+	{
+		throw Exception::AssertionFailure( msg );
+	}
+}
+
 u32 GetBiosVersion() {
 	unsigned int fileOffset=0;
 	s8 *ROMVER;

pcsx2/PrecompiledHeader.h

@@ -150,12 +150,13 @@ typedef int BOOL;
 #endif		// ENABLE_NLS
 
 //////////////////////////////////////////////////////////////////////////////////////////
-// Forceinline macro that is enabled for RELEASE/PUBLIC builds ONLY.  (non-inline in devel)
+// Forceinline macro that is enabled for RELEASE/PUBLIC builds ONLY.  (compiler-picked in devel)
 // This is useful because forceinline can make certain types of debugging problematic since
 // functions that look like they should be called won't breakpoint since their code is inlined.
-// Henceforth, use release_inline for things which we want inlined on public/release builds but
-// *not* in devel builds.
-
+// Henceforth, use __releaseinline for things which are generally large functions where trace
+// debugging from Devel builds is likely useful; but which should be inlined in an optimized
+// Release environment.
+//
 #ifdef PCSX2_DEVBUILD
 #	define __releaseinline
 #else