misc/libfreetype/src/raster/rastpic.c
author koda
Mon, 25 Apr 2011 01:46:54 +0200
changeset 5172 88f2e05288ba
permissions -rw-r--r--
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/***************************************************************************/
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/*                                                                         */
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/*  rastpic.c                                                              */
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/*                                                                         */
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/*    The FreeType position independent code services for raster module.   */
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/*                                                                         */
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/*  Copyright 2009, 2010 by                                                */
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/*  Oran Agra and Mickey Gabel.                                            */
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/*                                                                         */
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/*  This file is part of the FreeType project, and may only be used,       */
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/*  modified, and distributed under the terms of the FreeType project      */
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/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
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/*  this file you indicate that you have read the license and              */
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/*  understand and accept it fully.                                        */
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/*                                                                         */
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/***************************************************************************/
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_INTERNAL_OBJECTS_H
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#include "rastpic.h"
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#ifdef FT_CONFIG_OPTION_PIC
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  /* forward declaration of PIC init functions from ftraster.c */
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  void FT_Init_Class_ft_standard_raster(FT_Raster_Funcs*);
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  void
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  ft_raster1_renderer_class_pic_free(  FT_Library library )
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  {
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    FT_PIC_Container* pic_container = &library->pic_container;
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    FT_Memory memory = library->memory;
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    if ( pic_container->raster )
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    {
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      RasterPIC* container = (RasterPIC*)pic_container->raster;
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      if(--container->ref_count)
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        return;
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      FT_FREE( container );
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      pic_container->raster = NULL;
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    }
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  }
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  FT_Error
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  ft_raster1_renderer_class_pic_init( FT_Library library )
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  {
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    FT_PIC_Container* pic_container = &library->pic_container;
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    FT_Error          error         = Raster_Err_Ok;
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    RasterPIC*        container;
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    FT_Memory         memory        = library->memory;
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    /* since this function also serve raster5 renderer, 
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       it implements reference counting */
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    if ( pic_container->raster )
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    {
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      ((RasterPIC*)pic_container->raster)->ref_count++;
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      return error;
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    }
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    /* allocate pointer, clear and set global container pointer */
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    if ( FT_ALLOC ( container, sizeof ( *container ) ) )
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      return error;
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    FT_MEM_SET( container, 0, sizeof(*container) );
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    pic_container->raster = container;
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    container->ref_count = 1;
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    /* initialize pointer table - this is how the module usually expects this data */
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    FT_Init_Class_ft_standard_raster(&container->ft_standard_raster);
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/*Exit:*/
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    if(error)
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      ft_raster1_renderer_class_pic_free(library);
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    return error;
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  }
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  /* re-route these init and free functions to the above functions */
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  FT_Error ft_raster5_renderer_class_pic_init(FT_Library library)
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  {
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    return ft_raster1_renderer_class_pic_init(library);
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  }
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  void ft_raster5_renderer_class_pic_free(FT_Library library)
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  {
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    ft_raster1_renderer_class_pic_free(library);
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  }
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#endif /* FT_CONFIG_OPTION_PIC */
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/* END */