kc3-lang/ftgl/src/FTFont/FTPolygonFont.cpp

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• Hash : aaef5c16
  Author :
  Date : 2010-05-23T14:20:37
  

  Enforce GL_POLYGON_BIT in FTPolygonFont, so that the caller's context does not interfere with our rendering. Addresses SF bug #2021485.

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• src/FTFont/FTPolygonFont.cpp

• /*
   * FTGL - OpenGL font library
   *
   * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
   * Copyright (c) 2008-2010 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.
   */
  
  #include "config.h"
  
  #include "FTGL/ftgl.h"
  
  #include "FTInternals.h"
  #include "FTPolygonFontImpl.h"
  
  
  //
  //  FTPolygonFont
  //
  
  
  FTPolygonFont::FTPolygonFont(char const *fontFilePath) :
      FTFont(new FTPolygonFontImpl(this, fontFilePath))
  {}
  
  
  FTPolygonFont::FTPolygonFont(const unsigned char *pBufferBytes,
                               size_t bufferSizeInBytes) :
      FTFont(new FTPolygonFontImpl(this, pBufferBytes, bufferSizeInBytes))
  {}
  
  
  FTPolygonFont::~FTPolygonFont()
  {}
  
  
  FTGlyph* FTPolygonFont::MakeGlyph(FT_GlyphSlot ftGlyph)
  {
      FTPolygonFontImpl *myimpl = dynamic_cast<FTPolygonFontImpl *>(impl);
      if(!myimpl)
      {
          return NULL;
      }
  
      return new FTPolygonGlyph(ftGlyph, myimpl->outset,
                                myimpl->useDisplayLists);
  }
  
  
  //
  //  FTPolygonFontImpl
  //
  
  
  FTPolygonFontImpl::FTPolygonFontImpl(FTFont *ftFont, const char* fontFilePath)
  : FTFontImpl(ftFont, fontFilePath),
    outset(0.0f)
  {
      load_flags = FT_LOAD_NO_HINTING;
  }
  
  
  FTPolygonFontImpl::FTPolygonFontImpl(FTFont *ftFont,
                                       const unsigned char *pBufferBytes,
                                       size_t bufferSizeInBytes)
  : FTFontImpl(ftFont, pBufferBytes, bufferSizeInBytes),
    outset(0.0f)
  {
      load_flags = FT_LOAD_NO_HINTING;
  }
  
  
  template <typename T>
  inline FTPoint FTPolygonFontImpl::RenderI(const T* string, const int len,
                                            FTPoint position, FTPoint spacing,
                                            int renderMode)
  {
      // Protect GL_POLYGON
      glPushAttrib(GL_POLYGON_BIT);
  
      // Activate front and back face filling. If the caller wants only
      // front face, it can set proper culling.
      glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
  
      FTPoint tmp = FTFontImpl::Render(string, len,
                                       position, spacing, renderMode);
  
      glPopAttrib();
  
      return tmp;
  }
  
  
  FTPoint FTPolygonFontImpl::Render(const char * string, const int len,
                                    FTPoint position, FTPoint spacing,
                                    int renderMode)
  {
      return RenderI(string, len, position, spacing, renderMode);
  }
  
  
  FTPoint FTPolygonFontImpl::Render(const wchar_t * string, const int len,
                                    FTPoint position, FTPoint spacing,
                                    int renderMode)
  {
      return RenderI(string, len, position, spacing, renderMode);
  }
  
  

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