oc_font.h

Go to the documentation of this file.

#ifndef SYSTEM_LIBRARIES_INC_OC_FONT_H_
#define SYSTEM_LIBRARIES_INC_OC_FONT_H_

#include <oc_stdtypes.h>
#include <oc_1word.h>
#include <oc_null.h>
#include <stdbool.h>
#include <oc_stdlib.h>
#include <oc_pixel.h>

typedef struct
{
    const uint8_t   WidthBits;
    const uint16_t  Offset;
} oC_Font_CharacterInfo_t;

typedef struct
{
    const uint8_t                    HeightPages;
    const uint16_t                   StartChar;
    const uint16_t                   EndChar;
    const oC_Font_CharacterInfo_t*   CharInfo;
    const uint8_t*                   Data;
    const char *                     FontName;
} oC_FontInfo_t;

typedef struct
{
    uint8_t                 Width;
    uint8_t                 Height;
    const uint8_t*          Data;
} oC_Font_CharacterMap_t;

typedef const oC_FontInfo_t * oC_Font_t;

#define _________________________________________MACROS_SECTION_____________________________________________________________________________

#define oC_Font_IsPrintableCharacter( Font , Ascii )       ( (Ascii) >= Font->StartChar && (Ascii) <= Font->EndChar )

#undef  _________________________________________MACROS_SECTION_____________________________________________________________________________


#define _________________________________________PREDEFINED_FONTS_SECTION___________________________________________________________________

#define oC_Font_(FontName)          &oC_1WORD_FROM_2(oC_FontInfo_ , FontName)

extern const oC_FontInfo_t          oC_FontInfo_Consolas;

#undef  _________________________________________PREDEFINED_FONTS_SECTION___________________________________________________________________

#define _________________________________________STATIC_INLINE_SECTION______________________________________________________________________

static inline bool oC_Font_ReadCharacterMap( oC_Font_t Font , uint16_t C , oC_Font_CharacterMap_t * outCharacterMap )
{
    bool success = false;

    if(isaddresscorrect(Font) && isram(outCharacterMap) && oC_Font_IsPrintableCharacter(Font,C))
    {
        const oC_Font_CharacterInfo_t characterInfo = Font->CharInfo[C - Font->StartChar];

        outCharacterMap->Data   = &Font->Data[characterInfo.Offset];
        outCharacterMap->Height = Font->HeightPages;
        outCharacterMap->Width  = characterInfo.WidthBits;

        success = true;
    }

    return success;
}

#undef  _________________________________________STATIC_INLINE_SECTION______________________________________________________________________


#endif /* SYSTEM_LIBRARIES_INC_OC_FONT_H_ */