#pragma once
#include <3ds.h>
#include <stdio.h>
#include <dirent.h>
#include <vector>
#include <string>
#include <browse_entry.h>
#include <sstream>
#include <fstream>
#include <algorithm>
#include <citro3d.h>
#include "vshader_v_shbin.h"
#include <sstream>

#define CLEAR_COLOR 0x000000FF

#define DISPLAY_TRANSFER_FLAGS \
	(GX_TRANSFER_FLIP_VERT(0) | GX_TRANSFER_OUT_TILED(0) | GX_TRANSFER_RAW_COPY(0) | \
	GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGBA8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8) | \
	GX_TRANSFER_SCALING(GX_TRANSFER_SCALE_NO))

#define TEXT_VTX_ARRAY_COUNT (4*1024)

typedef struct { float position[3]; float texcoord[2]; } textVertex_s;

class TextEngine {
public:
	void Initialize(gfxScreen_t scn);
	void setTextColor(u32 color);
	void renderText(float x, float y, float scaleX, float scaleY, bool baseline, const char* text);
	void Cleanup();
	void Update();
	
	C3D_RenderTarget* target;
	
private:
	void addTextVertex(float vx, float vy, float tx, float ty);
	
	DVLB_s* vshader_dvlb;
	shaderProgram_s program;

	textVertex_s* textVtxArray;

	C3D_Mtx projection;
	C3D_Tex* glyphSheets;

	int uLoc_projection;
	int textVtxArrayPos;
};