Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/lib/vstguidebug.cpp

@@ -0,0 +1,129 @@
+// This file is part of VSTGUI. It is subject to the license terms 
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#include "vstguidebug.h"
+#include <cstdarg>
+#include <exception>
+
+#if !defined(NDEBUG) && !defined(DEBUG)
+#error VSTGUI expects either NDEBUG or DEBUG to be defined
+#endif
+
+#if DEBUG
+
+#include "cstring.h"
+
+#if WINDOWS
+	#include "platform/win32/win32support.h"
+#endif
+
+#include <cstdio>
+
+namespace VSTGUI {
+
+//-----------------------------------------------------------------------------
+TimeWatch::TimeWatch (UTF8StringPtr inName, bool startNow)
+: startTime (0)
+{
+	if (inName)
+	{
+		auto len = std::strlen (inName);
+		name = std::unique_ptr<char[]> (new char[len + 1]);
+		std::strcpy (name.get (), inName);
+	}
+	if (startNow)
+		start ();
+}
+
+//-----------------------------------------------------------------------------
+TimeWatch::~TimeWatch () noexcept
+{
+	stop ();
+}
+
+//-----------------------------------------------------------------------------
+void TimeWatch::start ()
+{
+	startTime = std::clock ();
+}
+
+//-----------------------------------------------------------------------------
+void TimeWatch::stop ()
+{
+	if (startTime > 0)
+	{
+		clock_t stopTime = std::clock ();
+		if (name)
+			DebugPrint ("%s took %d\n", name.get (), stopTime - startTime);
+		else
+			DebugPrint ("it took %d\n", stopTime - startTime);
+		startTime = 0;
+	}
+}
+
+//-----------------------------------------------------------------------------
+void DebugPrint (const char *format, ...)
+{
+	static constexpr auto BufferSize = 1024u;
+	char string[BufferSize];
+	std::va_list marker;
+	va_start (marker, format);
+	if (std::vsnprintf (string, BufferSize, format, marker) == 0)
+		std::strcpy (string, "Empty string\n");
+#if WINDOWS
+	UTF8StringHelper debugString (string);
+	OutputDebugString (debugString);
+#else
+	std::fprintf (stderr, "%s", string);
+#endif
+}
+
+} // VSTGUI
+
+#endif // DEBUG
+
+namespace VSTGUI {
+
+static AssertionHandler assertionHandler = nullptr;
+
+//------------------------------------------------------------------------
+void setAssertionHandler (AssertionHandler handler)
+{
+	assertionHandler = handler;
+}
+
+//------------------------------------------------------------------------
+bool hasAssertionHandler ()
+{
+	return assertionHandler ? true : false;
+}
+
+//------------------------------------------------------------------------
+void doAssert (const char* filename, const char* line, const char* condition,
+			   const char* desc) noexcept (false)
+{
+#if NDEBUG
+	if (!hasAssertionHandler ())
+		return;
+#endif
+	if (hasAssertionHandler ())
+	{
+		try {
+			assertionHandler (filename, line, condition, desc);
+		} catch (...)
+		{
+			std::rethrow_exception (std::current_exception ());
+		}
+	}
+#if DEBUG
+	else
+	{
+		DebugPrint ("%s:%s: Assertion '%s' failed. %s\n", filename, line, condition,
+					desc ? desc : "");
+		assert (false);
+	}
+#endif // DEBUG
+}
+	
+} // VSTGUI