kc3-lang/freetype/src/pfr/pfrdrivr.c

• Show log

  Commit

• Hash : 60b32e16
  Author :
  Date : 2002-11-06T22:32:54
  

  2002-11-05 David Turner <david@freetype.org> * include/freetype/config/ftoption.h, src/gzip/ftgzip.c: added support for the FT_CONFIG_OPTION_SYSTEM_ZLIB option, used to specify the use of system-wide zlib. Note that this macro, as well as FT_CONFIG_OPTION_BYTECODE_INTERPRETER, is not #undef-ed anymore. This allows the build system to define them depending on the configuration (typically by adding -D flags at compile time). * src/sfnt/ttcmap0.c (tt_face_build_cmaps): removed compiler warnings in optimized mode relative to the "volatile" local variables. This was not a compiler bug after all, but the fact that a pointer to a volatile variable is not the same than a volatile pointer to a variable :-) the fix was to change "volatile FT_Byte* p" into "FT_Byte* volatile p" * src/pfr/pfrload.c, src/pfr/pfrdrivr.c, src/gzip/inftrees.c: removed compiler warnings in optimized modes * src/gzip/*.[hc]: modified our ZLib copy in order to prevent exporting any zlib function names outside of the component. This prevents linking problems on some platforms, when applications want to link FreeType _and_ ZLib together. 2002-11-05 Juliusz <jch@pps.jussieu.fr> * src/psaux/psobjs.c (ps_table_add): modified increment loop in order to implement exponential behaviour

Download

• src/pfr/pfrdrivr.c

• /***************************************************************************/
  /*                                                                         */
  /*  pfrdrivr.c                                                             */
  /*                                                                         */
  /*    FreeType PFR driver interface (body).                                */
  /*                                                                         */
  /*  Copyright 2002 by                                                      */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #include <ft2build.h>
  #include FT_INTERNAL_DEBUG_H
  #include FT_INTERNAL_STREAM_H
  #include FT_INTERNAL_PFR_H
  #include "pfrdrivr.h"
  #include "pfrobjs.h"
  
  
    static FT_Error
    pfr_get_kerning( PFR_Face    face,
                     FT_UInt     left,
                     FT_UInt     right,
                     FT_Vector  *avector )
    {
      FT_Error  error;
  
      error = pfr_face_get_kerning( face, left, right, avector );
      if ( !error )
      {
        PFR_PhyFont  phys = &face->phy_font;
  
        /* convert from metrics to outline units when necessary */
        if ( phys->outline_resolution != phys->metrics_resolution )
        {
          if ( avector->x != 0 )
            avector->x = FT_MulDiv( avector->x, phys->outline_resolution,
                                                phys->metrics_resolution );
  
          if ( avector->y != 0 )
            avector->y = FT_MulDiv( avector->x, phys->outline_resolution,
                                                phys->metrics_resolution );
        }
      }
      return error;
    }
  
  
    static FT_Error
    pfr_get_advance( PFR_Face   face,
                     FT_UInt    gindex,
                     FT_Pos    *aadvance )
    {
      FT_Error     error = FT_Err_Bad_Argument;
  
      *aadvance = 0;
      if ( face )
      {
        PFR_PhyFont  phys  = &face->phy_font;
  
        if ( gindex < phys->num_chars )
        {
          *aadvance = phys->chars[ gindex ].advance;
          error = 0;
        }
      }
  
      return error;
    }
  
  
    static FT_Error
    pfr_get_metrics( PFR_Face   face,
                     FT_UInt   *aoutline_resolution,
                     FT_UInt   *ametrics_resolution,
                     FT_Fixed  *ametrics_x_scale,
                     FT_Fixed  *ametrics_y_scale )
    {
      PFR_PhyFont  phys  = &face->phy_font;
      FT_Fixed     x_scale, y_scale;
      FT_Size      size = face->root.size;
  
      if ( aoutline_resolution )
        *aoutline_resolution = phys->outline_resolution;
  
      if ( ametrics_resolution )
        *ametrics_resolution = phys->metrics_resolution;
  
      x_scale = 0x10000L;
      y_scale = 0x10000L;
  
      if ( size )
      {
        x_scale = FT_DivFix( size->metrics.x_ppem << 6,
                             phys->metrics_resolution );
  
        y_scale = FT_DivFix( size->metrics.y_ppem << 6,
                             phys->metrics_resolution );
      }
  
      if ( ametrics_x_scale )
        *ametrics_x_scale = x_scale;
  
      if ( ametrics_y_scale )
        *ametrics_y_scale = y_scale;
  
      return 0;
    }
  
  
    FT_CALLBACK_TABLE_DEF
    const FT_PFR_ServiceRec  pfr_service_rec =
    {
      (FT_PFR_GetMetricsFunc)  pfr_get_metrics,
      (FT_PFR_GetKerningFunc)  pfr_get_kerning,
      (FT_PFR_GetAdvanceFunc)  pfr_get_advance
    };
  
  
    FT_CALLBACK_TABLE_DEF
    const FT_Driver_ClassRec  pfr_driver_class =
    {
      {
        ft_module_font_driver      |
        ft_module_driver_scalable,
  
        sizeof( FT_DriverRec ),
  
        "pfr",
        0x10000L,
        0x20000L,
  
        (FT_PFR_Service)  &pfr_service_rec,   /* format interface */
  
        (FT_Module_Constructor)NULL,
        (FT_Module_Destructor) NULL,
        (FT_Module_Requester)  NULL
      },
  
      sizeof( PFR_FaceRec ),
      sizeof( PFR_SizeRec ),
      sizeof( PFR_SlotRec ),
  
      (FT_Face_InitFunc)        pfr_face_init,
      (FT_Face_DoneFunc)        pfr_face_done,
      (FT_Size_InitFunc)        NULL,
      (FT_Size_DoneFunc)        NULL,
      (FT_Slot_InitFunc)        pfr_slot_init,
      (FT_Slot_DoneFunc)        pfr_slot_done,
  
      (FT_Size_ResetPointsFunc) NULL,
      (FT_Size_ResetPixelsFunc) NULL,
      (FT_Slot_LoadFunc)        pfr_slot_load,
  
      (FT_Face_GetKerningFunc)  pfr_get_kerning,
      (FT_Face_AttachFunc)      0,
      (FT_Face_GetAdvancesFunc) 0
    };
  
  
  /* END */
  

Download