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int main()  
{  
	/* INITIALIZE OPENGL */  
	font_ptr pFont = load_font("arial.ttf", 18);  
	text_buffer_ptr tbuff = text_buffer_ptr(new text_buffer());  
	std::wstring str = L"Hello World";  
	tbuff->set(str, pFont);  
	/* HERE YOU DRAW YOUR VERTEX ARRAY */  
	return 0;  
}  

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class text_buffer  
{  
public:  
	void set(std::wstring& str, font_ptr& font)  
	{  
		int size = str.size();  
		va = vertex_ptr(new vertex());  
		va->allocate(size*4);  
		uv = vertex_ptr(new uv());  
		uv->allocate(size*4);  

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void fill_texture_data(uint32_t ch, font::font_info_t* font, uint32_t texture_width, uint8_t* texture_data)  
{  
	font::char_info_t* char_info = &font->ch[ch];  
	uint8_t* char_bmp = char_info->bitmap;  
	int bmp_pos = 0;  
	int tex_pos = 0;  
	int char_x = char_info->x;  
	int char_y = char_info->y;  
	int char_width = char_info->width;  
	int char_height = char_info->height;  

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font_ptr load_font(const std::string& font_file_path, uint32_t font_size)  
{  
	/* HERE YOU MUST LOAD YOUR TTF FILE INTO THE BUFFER */  
	uint32_t file_size =  
		uint8_t* file_buffer =  
		/* HERE YOU MUST LOAD YOUR TTF FILE INTO THE BUFFER */  
		font_ptr pFont = font_ptr(new font());  
	// Initialize Freetype  
	FT_Library ft_library;  
	FT_Face  ft_face;  

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class font
{  
	public:  
		struct char_info_t  
		{  
			int x;  
			int y;  
			int width;  
			int height;  
			int left;  

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class texture  
{  
	public:  
		uint32_t m_id;  

		bool create_two_channel (uint32_t width, uint32_t height, uint8_t* data)  
		{  
			glGenTextures(1, &m_id);  
			glBindTexture( GL_TEXTURE_2D, m_id);  
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);  

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struct vertex_node  
{  
	vertex_node():x(0.0f),y(0.0f),z(0.0f){}  
	float x,y,z;  
};  

struct uv_node  
{  
	uv_node():u(0.0f),v(0.0f){}  
	float u,v;  

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inline int next_p2 ( int a )  
{  
	int rval=1;  
	while(rval<a) rval<<=1;  
	return rval;  
}  

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const uint32_t m_number_of_chars = 512;  
const uint32_t m_texture_max_width = 2048;  

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#include <vector>  
#include <string>  
#include <gl/gl.h>  
#include <gl/glu.h>  
#include <ft2build.h>  
#include <freetype/freetype.h>  
#include <freetype/ftglyph.h>  
#include <boost/shared_ptr.hpp>