/*
   Copyright (C) 2001-2006, William Joseph.
   All Rights Reserved.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#if !defined ( INCLUDED_SHADERLIB_H )
#define INCLUDED_SHADERLIB_H

#include "string/string.h"
#include "character.h"
#include "ishaders.h"

inline bool shader_equal( const char* shader, const char* other ){
	return string_equal_nocase( shader, other );
}

inline bool shader_equal_n( const char* shader, const char* other, std::size_t n ){
	return string_equal_nocase_n( shader, other, n );
}

inline bool shader_less( const char* shader, const char* other ){
	return string_less_nocase( shader, other );
}

inline bool shader_equal_prefix( const char* string, const char* prefix ){
	return shader_equal_n( string, prefix, string_length( prefix ) );
}

class shader_less_t
{
public:
bool operator()( const CopiedString& shader, const CopiedString& other ) const {
	return shader_less( shader.c_str(), other.c_str() );
}
};

inline bool shader_valid( const char* shader ){
	return string_is_ascii( shader )
		   && strchr( shader, ' ' ) == 0
		   && strchr( shader, '\n' ) == 0
		   && strchr( shader, '\r' ) == 0
		   && strchr( shader, '\t' ) == 0
		   && strchr( shader, '\v' ) == 0
		   && strchr( shader, '\\' ) == 0;
}

inline const char* GlobalTexturePrefix_get(){
	return GlobalShaderSystem().getTexturePrefix();
}

inline bool shader_is_texture( const char* name ){
	return shader_equal_prefix( name, GlobalTexturePrefix_get() );
}

inline const char* shader_get_textureName( const char* name ){
	return name + string_length( GlobalTexturePrefix_get() );
}

inline bool texdef_name_valid( const char* name ){
	return shader_valid( name ) && shader_is_texture( name );
}

inline const char* texdef_name_default(){
	return GlobalTexturePrefix_get();
}


#endif