kc3-lang/ftgl/src/FTFont/FTBufferFontImpl.h

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• Hash : cab1fafd
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  Date : 2009-07-19T13:05:50
  

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• src/FTFont/FTBufferFontImpl.h

• /*
   * FTGL - OpenGL font library
   *
   * Copyright (c) 2008 Sam Hocevar <sam@hocevar.net>
   *
   * 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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