#ifndef RVL_SDK_OS_FONT_H
#define RVL_SDK_OS_FONT_H
#include "common.h"
#ifdef __cplusplus
extern "C" {
#endif

/**
 * Documentation from:
 * https://www.gc-forever.com/yagcd/chap16.html#sec16.1.3
 */

typedef enum {
    OS_FONT_ENCODE_ANSI,
    OS_FONT_ENCODE_SJIS,
    OS_FONT_ENCODE_2,
    OS_FONT_ENCODE_UTF8,
    OS_FONT_ENCODE_UTF16,
    OS_FONT_ENCODE_UTF32,
    OS_FONT_ENCODE_MAX
} OSFontEncode;

typedef struct OSFontHeader {
    u16 type;          // at 0x0
    u16 firstChar;     // at 0x2
    u16 lastChar;      // at 0x4
    u16 invalidChar;   // at 0x6
    u16 ascent;        // at 0x8
    u16 descent;       // at 0xA
    u16 width;         // at 0xC
    u16 leading;       // at 0xE
    u16 cellWidth;     // at 0x10
    u16 cellHeight;    // at 0x12
    u32 sheetSize;     // at 0x14
    u16 sheetFormat;   // at 0x18
    u16 sheetNumCol;   // at 0x1A
    u16 sheetNumRow;   // at 0x1C
    u16 sheetWidth;    // at 0x1E
    u16 sheetHeight;   // at 0x20
    u16 widthTableOfs; // at 0x22
    u32 sheetImageOfs; // at 0x24
    u32 sheetFullSize; // at 0x28
    u8 c0;             // at 0x2C
    u8 c1;             // at 0x2D
    u8 c2;             // at 0x2E
    u8 c3;             // at 0x2F
} OSFontHeader;

u16 OSGetFontEncode(void);
u16 OSSetFontEncode(u16 encode);
u32 OSLoadFont(OSFontHeader *font, void *dst);
const char *OSGetFontTexel(const char *str, void *dst, s32 xOfs, s32 arg3, u32 *widthOut);
BOOL OSInitFont(OSFontHeader *font);
const char *OSGetFontTexture(const char *str, void **texOut, u32 *xOut, u32 *yOut, u32 *widthOut);
const char *OSGetFontWidth(const char *str, u32 *widthOut);

#ifdef __cplusplus
}
#endif
#endif