// FreetyprTest.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

#include <iostream>
#include <fstream>
#include <string>

#include "ft2build.h"
#include FT_FREETYPE_H

using namespace std;
char m_arrnMappingTable[] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
							16,17,18,19,20,21,22,23,24,25,26,27,28,29,
							30,31,32,33,34,35,36,37,38,39,40,41,42,43,
							44,45,46,47,48,49,50,51,52,53,54,55,56,57,
							58,59,60,61,62,63,64,65,66,67,68,69,70,71,
							72,73,74,75,76,77,78,79,80,81,82,83,84,85,
							86,87,88,89,90,91,92,93,94 };

struct FT_FaceRec_;
struct FT_LibraryRec_;

int main()
{
	char fontdata[732160] = { '\0' };

	FILE * fptr = fopen(".\\stbc39h.ttf", "rb");
	
	if (fptr == NULL)
	{
		printf("Cannot open file \n");
		exit(0);
	}

	// Read contents from file
	int len = 0;
	char c = fgetc(fptr);

	fseek(fptr, 0, SEEK_END);

	unsigned int uiSize = ftell(fptr) + 1;

	fseek(fptr, 0, SEEK_SET);

	size_t read = fread(fontdata, sizeof(char), uiSize, fptr);

	fclose(fptr);

	FT_Library m_ftlbLibrary;
	struct FT_FaceRec_    * m_ftfcFace;

	int nError = FT_Init_FreeType(&m_ftlbLibrary);

	if (nError)
	{
		cout << "ERROR - Failed to initialize FreeType library." << endl;
		cout << "\tError code: " << nError << endl;
		return false;
	}


	nError = FT_New_Memory_Face(m_ftlbLibrary,
		(unsigned char *)fontdata,
		uiSize,
		0,
		&m_ftfcFace);

	nError = FT_Set_Char_Size(
		m_ftfcFace,    /* handle to face object           */
		0,       /* char_width in 1/64th of points  */
		16 * 64,   /* char_height in 1/64th of points */
		300,     /* horizontal device resolution    */
		300);   /* vertical device resolution      */


	int nChar;
	int nGlyphIndex;
	bool bGlyphIndexFound = false;
	
	for (int i = 16; i < 36; i++)
	{
		nChar = m_arrnMappingTable[i];

		nGlyphIndex = FT_Get_Char_Index(m_ftfcFace, nChar);

		if (!nGlyphIndex)
		{
			continue;
		}

		nError = FT_Load_Glyph(m_ftfcFace,      /* handle to face object */
			nGlyphIndex,        /* glyph index           */
			FT_LOAD_DEFAULT);  /* load flags, see below */

		if (nError)
		{
			continue;
		}

		nError = FT_Render_Glyph(m_ftfcFace->glyph,  /* glyph slot  */
			ft_render_mode_mono); /* render mode */

		if (nError)
		{
			continue;
		}

	}
}