Semi-working base for bgfx renderer

2015-09-08 16:13:59 +02:00
parent c7f17c8ef0
commit c24b039005
47 changed files with 11176 additions and 43 deletions
@@ -0,0 +1,188 @@
+/*
+ * Copyright 2010-2015 Branimir Karadzic. All rights reserved.
+ * License: http://www.opensource.org/licenses/BSD-2-Clause
+ */
+
+#ifndef BX_COMMANDLINE_H_HEADER_GUARD
+#define BX_COMMANDLINE_H_HEADER_GUARD
+
+#include "bx.h"
+#include "string.h"
+
+namespace bx
+{
+	class CommandLine
+	{
+	public:
+		CommandLine(int _argc, char const* const* _argv)
+			: m_argc(_argc)
+			, m_argv(_argv)
+		{
+		}
+
+		const char* findOption(const char* _long, const char* _default) const
+		{
+			const char* result = find('\0', _long, 1);
+			return result == NULL ? _default : result;
+		}
+
+		const char* findOption(const char _short, const char* _long, const char* _default) const
+		{
+			const char* result = find(_short, _long, 1);
+			return result == NULL ? _default : result;
+		}
+
+		const char* findOption(const char* _long, int _numParams = 1) const
+		{
+			const char* result = find('\0', _long, _numParams);
+			return result;
+		}
+
+		const char* findOption(const char _short, const char* _long = NULL, int _numParams = 1) const
+		{
+			const char* result = find(_short, _long, _numParams);
+			return result;
+		}
+
+		bool hasArg(const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 0);
+			return NULL != arg;
+		}
+
+		bool hasArg(const char* _long) const
+		{
+			const char* arg = findOption('\0', _long, 0);
+			return NULL != arg;
+		}
+
+		bool hasArg(const char*& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			_value = arg;
+			return NULL != arg;
+		}
+
+		bool hasArg(int& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			if (NULL != arg)
+			{
+				_value = atoi(arg);
+				return true;
+			}
+
+			return false;
+		}
+
+		bool hasArg(unsigned int& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			if (NULL != arg)
+			{
+				_value = atoi(arg);
+				return true;
+			}
+
+			return false;
+		}
+
+		bool hasArg(float& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			if (NULL != arg)
+			{
+				_value = float(atof(arg));
+				return true;
+			}
+
+			return false;
+		}
+
+		bool hasArg(double& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			if (NULL != arg)
+			{
+				_value = atof(arg);
+				return true;
+			}
+
+			return false;
+		}
+
+		bool hasArg(bool& _value, const char _short, const char* _long = NULL) const
+		{
+			const char* arg = findOption(_short, _long, 1);
+			if (NULL != arg)
+			{
+				if ('0' == *arg || (0 == stricmp(arg, "false") ) )
+				{
+					_value = false;
+				}
+				else if ('0' != *arg || (0 == stricmp(arg, "true") ) )
+				{
+					_value = true;
+				}
+
+				return true;
+			}
+
+			return false;
+		}
+
+	private:
+		const char* find(const char _short, const char* _long, int _numParams) const
+		{
+			for (int ii = 0; ii < m_argc; ++ii)
+			{
+				const char* arg = m_argv[ii];
+				if ('-' == *arg)
+				{
+					++arg;
+					if (_short == *arg)
+					{
+						if (1 == strlen(arg) )
+						{
+							if (0 == _numParams)
+							{
+								return "";
+							}
+							else if (ii+_numParams < m_argc
+								 && '-' != *m_argv[ii+1] )
+							{
+								return m_argv[ii+1];
+							}
+
+							return NULL;
+						}
+					}
+					else if (NULL != _long
+						 &&  '-' == *arg
+						 &&  0 == stricmp(arg+1, _long) )
+					{
+						if (0 == _numParams)
+						{
+							return "";
+						}
+						else if (ii+_numParams < m_argc
+								&&  '-' != *m_argv[ii+1] )
+						{
+							return m_argv[ii+1];
+						}
+
+						return NULL;
+					}
+				}
+			}
+
+			return NULL;
+		}
+
+		int m_argc;
+		char const* const* m_argv;
+	};
+
+} // namespace bx
+
+#endif /// BX_COMMANDLINE_H_HEADER_GUARD