/**
 * Copyright (c) 2021 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#pragma once
#include "../../libs.h"
#include "../texture.h"

/** Which character (ASCII) to start the font from */
#define FONT_FIRST_CHAR 32

/** How many characters (after the first char) to generate */
#define FONT_NUM_CHARS 96

/** Passed to STBTT for scaling the font nicely */
#define FONT_TEXTURE_SIZE 64

/** Width of the loaded font texture */
#define FONT_TEXTURE_WIDTH 512

/** Height of the loaded font texture */
#define FONT_TEXTURE_HEIGHT FONT_TEXTURE_WIDTH

/** Refer to STBTT docs for OpenGL Fill Mode v d3d Fill Modes */
#define FONT_FILL_MODE 1

#define FONT_NEWLINE '\n'
#define FONT_SPACE ' '
#define FONT_LINE_HEIGHT FONT_TEXTURE_SIZE*0.75
#define FONT_INITIAL_LINE FONT_LINE_HEIGHT*0.75
#define FONT_SPACE_SIZE FONT_TEXTURE_SIZE*0.75
#define FONT_SCALE_ADJUST 0.03

typedef struct {
  texture_t texture;
  stbtt_bakedchar characterData[FONT_NUM_CHARS];
} font_t;

typedef struct {
  int32_t length;
  int32_t realLength;
  float width, height, scale;
  stbtt_aligned_quad *quads;
} fonttextinfo_t;