1 /***************************************************************************/ |
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2 /* */ |
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3 /* rastpic.c */ |
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4 /* */ |
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5 /* The FreeType position independent code services for raster module. */ |
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6 /* */ |
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7 /* Copyright 2009, 2010 by */ |
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8 /* Oran Agra and Mickey Gabel. */ |
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9 /* */ |
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10 /* This file is part of the FreeType project, and may only be used, */ |
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11 /* modified, and distributed under the terms of the FreeType project */ |
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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13 /* this file you indicate that you have read the license and */ |
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14 /* understand and accept it fully. */ |
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15 /* */ |
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16 /***************************************************************************/ |
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17 |
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18 |
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19 #include <ft2build.h> |
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20 #include FT_FREETYPE_H |
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21 #include FT_INTERNAL_OBJECTS_H |
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22 #include "rastpic.h" |
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23 |
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24 #ifdef FT_CONFIG_OPTION_PIC |
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25 |
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26 /* forward declaration of PIC init functions from ftraster.c */ |
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27 void FT_Init_Class_ft_standard_raster(FT_Raster_Funcs*); |
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28 |
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29 void |
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30 ft_raster1_renderer_class_pic_free( FT_Library library ) |
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31 { |
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32 FT_PIC_Container* pic_container = &library->pic_container; |
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33 FT_Memory memory = library->memory; |
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34 if ( pic_container->raster ) |
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35 { |
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36 RasterPIC* container = (RasterPIC*)pic_container->raster; |
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37 if(--container->ref_count) |
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38 return; |
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39 FT_FREE( container ); |
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40 pic_container->raster = NULL; |
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41 } |
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42 } |
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43 |
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44 |
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45 FT_Error |
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46 ft_raster1_renderer_class_pic_init( FT_Library library ) |
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47 { |
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48 FT_PIC_Container* pic_container = &library->pic_container; |
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49 FT_Error error = Raster_Err_Ok; |
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50 RasterPIC* container; |
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51 FT_Memory memory = library->memory; |
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52 |
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53 |
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54 /* since this function also serve raster5 renderer, |
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55 it implements reference counting */ |
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56 if ( pic_container->raster ) |
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57 { |
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58 ((RasterPIC*)pic_container->raster)->ref_count++; |
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59 return error; |
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60 } |
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61 |
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62 /* allocate pointer, clear and set global container pointer */ |
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63 if ( FT_ALLOC ( container, sizeof ( *container ) ) ) |
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64 return error; |
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65 FT_MEM_SET( container, 0, sizeof(*container) ); |
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66 pic_container->raster = container; |
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67 container->ref_count = 1; |
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68 |
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69 /* initialize pointer table - this is how the module usually expects this data */ |
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70 FT_Init_Class_ft_standard_raster(&container->ft_standard_raster); |
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71 /*Exit:*/ |
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72 if(error) |
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73 ft_raster1_renderer_class_pic_free(library); |
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74 return error; |
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75 } |
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76 |
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77 /* re-route these init and free functions to the above functions */ |
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78 FT_Error ft_raster5_renderer_class_pic_init(FT_Library library) |
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79 { |
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80 return ft_raster1_renderer_class_pic_init(library); |
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81 } |
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82 void ft_raster5_renderer_class_pic_free(FT_Library library) |
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83 { |
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84 ft_raster1_renderer_class_pic_free(library); |
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85 } |
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86 |
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87 #endif /* FT_CONFIG_OPTION_PIC */ |
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88 |
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89 |
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90 /* END */ |
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