dist/source/FreeTypeGX/FreeTypeGX.h

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/* 
 * FreeTypeGX is a wrapper class for libFreeType which renders a compiled
 * FreeType parsable font into a GX texture for Wii homebrew development.
 * Copyright (C) 2008 Armin Tamzarian
 * 
 * This file is part of FreeTypeGX.
 * 
 * FreeTypeGX is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * FreeTypeGX is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with FreeTypeGX.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef FREETYPEGX_H_
#define FREETYPEGX_H_

#include <gccore.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include <Metaphrasis.h>

#include <malloc.h>
#include <string.h>
#include <map>


extern char fontface[]; 
extern int fontsize;    
typedef struct fontCharData_ {
        uint16_t glyphAdvanceX; 
        uint16_t textureWidth;  
        uint16_t textureHeight; 
        uint16_t renderOffsetY; 
        uint16_t renderOffsetMax;       
        uint16_t renderOffsetMin;       
        uint32_t* glyphDataTexture;     
} fontCharData;

#define _TEXT(t) L ## t 
class FreeTypeGX {

        private:
                FT_Library ftLibrary;   
                FT_Face ftFace;                 
                FT_GlyphSlot ftSlot;    
                uint8_t textureFormat;          
                std::map<wchar_t, fontCharData> fontData; 
                static uint16_t adjustTextureWidth(uint16_t textureWidth, uint8_t textureFormat);
                static uint16_t adjustTextureHeight(uint16_t textureHeight, uint8_t textureFormat);

                uint16_t cacheAllGlyphData();
                fontCharData *cacheGlyphData(wchar_t charCode);
                void loadGlyphData(FT_Bitmap *bmp, fontCharData *charData);
                void copyTextureToFramebuffer(GXTexObj *texObj, uint16_t texWidth, uint16_t texHeight, uint16_t screenX, uint16_t screenY, GXColor color);

        public:
                FreeTypeGX(FT_UInt pointSize, uint8_t textureFormat = GX_TF_RGBA8, bool cacheAll = false);
                ~FreeTypeGX();

                uint16_t drawText(uint16_t x, uint16_t y, wchar_t *text, GXColor color);
                uint16_t drawText(uint16_t x, uint16_t y, wchar_t *text);
                uint16_t drawText(uint16_t x, uint16_t y, wchar_t const *text, GXColor color);
                uint16_t drawText(uint16_t x, uint16_t y, wchar_t const *text);

                uint16_t getWidth(wchar_t *text);
                uint16_t getWidth(wchar_t const *text);
                uint16_t getHeight(wchar_t *text);
                uint16_t getHeight(wchar_t const *text);
};

#endif /* FREETYPEGX_H_ */

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