kc3-lang/freetype/src/sfnt/pngshim.h

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• Hash : 1c6fd994
  Author :
  Date : 2016-11-06T12:37:55
  

  [sfnt] Improve FT_LOAD_BITMAP_METRICS_ONLY for `sbix' format. It's unavoidable to call the PNG engine, but to get the metrics it is sufficient to read the PNG image's header only. * src/sfnt/pngshim.c (Load_SBit_Png): Add argument to control the allocation of the glyph slot. * src/sfnt/pngshim.h: Updated. * src/sfnt/ttsbit.c (tt_sbit_decoder_load_png, tt_face_load_sbix_image, tt_face_load_sbit_image): Updated.

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• src/sfnt/pngshim.h

• /***************************************************************************/
  /*                                                                         */
  /*  pngshim.h                                                              */
  /*                                                                         */
  /*    PNG Bitmap glyph support.                                            */
  /*                                                                         */
  /*  Copyright 2013-2016 by                                                 */
  /*  Google, Inc.                                                           */
  /*  Written by Stuart Gill and Behdad Esfahbod.                            */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #ifndef PNGSHIM_H_
  #define PNGSHIM_H_
  
  
  #include <ft2build.h>
  #include "ttload.h"
  
  
  FT_BEGIN_HEADER
  
  #ifdef FT_CONFIG_OPTION_USE_PNG
  
    FT_LOCAL( FT_Error )
    Load_SBit_Png( FT_GlyphSlot     slot,
                   FT_Int           x_offset,
                   FT_Int           y_offset,
                   FT_Int           pix_bits,
                   TT_SBit_Metrics  metrics,
                   FT_Memory        memory,
                   FT_Byte*         data,
                   FT_UInt          png_len,
                   FT_Bool          populate_map_and_metrics,
                   FT_Bool          metrics_only );
  
  #endif
  
  FT_END_HEADER
  
  #endif /* PNGSHIM_H_ */
  
  
  /* END */
  

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