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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __FTBufferFontImpl__
#define __FTBufferFontImpl__
#include "FTFontImpl.h"
class FTGlyph;
class FTBuffer;
class FTBufferFontImpl : public FTFontImpl
{
friend class FTBufferFont;
protected:
FTBufferFontImpl(FTFont *ftFont, const char* fontFilePath);
FTBufferFontImpl(FTFont *ftFont, const unsigned char *pBufferBytes,
size_t bufferSizeInBytes);
virtual ~FTBufferFontImpl();
virtual FTPoint Render(const char *s, const int len,
FTPoint position, FTPoint spacing,
int renderMode);
virtual FTPoint Render(const wchar_t *s, const int len,
FTPoint position, FTPoint spacing,
int renderMode);
virtual bool FaceSize(const unsigned int size,
const unsigned int res);
private:
/**
* Create an FTBufferGlyph object for the base class.
*/
FTGlyph* MakeGlyphImpl(FT_GlyphSlot ftGlyph);
/* Internal generic Render() implementation */
template <typename T>
inline FTPoint RenderI(const T *s, const int len,
FTPoint position, FTPoint spacing, int mode);
/* Pixel buffer */
FTBuffer *buffer;
static const int BUFFER_CACHE_SIZE = 16;
/* Texture IDs */
GLuint idCache[BUFFER_CACHE_SIZE];
void *stringCache[BUFFER_CACHE_SIZE];
FTBBox bboxCache[BUFFER_CACHE_SIZE];
FTPoint advanceCache[BUFFER_CACHE_SIZE];
int lastString;
};
#endif // __FTBufferFontImpl__
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