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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* pfrload.h */ |
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| 4 | /* */ |
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| 5 | /* FreeType PFR loader (specification). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 2002 by */ |
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| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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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 | |||
| 18 | |||
| 19 | #ifndef __PFRLOAD_H__ |
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| 20 | #define __PFRLOAD_H__ |
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| 21 | |||
| 22 | #include "pfrobjs.h" |
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| 23 | #include FT_INTERNAL_STREAM_H |
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| 24 | |||
| 25 | |||
| 26 | FT_BEGIN_HEADER |
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| 27 | |||
| 28 | #ifdef PFR_CONFIG_NO_CHECKS |
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| 29 | #define PFR_CHECK( x ) do { } while ( 0 ) |
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| 30 | #else |
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| 31 | #define PFR_CHECK( x ) do \ |
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| 32 | { \ |
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| 33 | if ( p + (x) > limit ) \ |
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| 34 | goto Too_Short; \ |
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| 35 | } while ( 0 ) |
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| 36 | #endif |
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| 37 | |||
| 38 | #define PFR_NEXT_BYTE( p ) FT_NEXT_BYTE( p ) |
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| 39 | #define PFR_NEXT_INT8( p ) FT_NEXT_CHAR( p ) |
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| 40 | #define PFR_NEXT_SHORT( p ) FT_NEXT_SHORT( p ) |
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| 41 | #define PFR_NEXT_USHORT( p ) FT_NEXT_USHORT( p ) |
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| 42 | #define PFR_NEXT_LONG( p ) FT_NEXT_OFF3( p ) |
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| 43 | #define PFR_NEXT_ULONG( p ) FT_NEXT_UOFF3( p ) |
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| 44 | |||
| 45 | |||
| 46 | /* handling extra items */ |
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| 47 | |||
| 48 | typedef FT_Error |
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| 49 | (*PFR_ExtraItem_ParseFunc)( FT_Byte* p, |
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| 50 | FT_Byte* limit, |
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| 51 | FT_Pointer data ); |
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| 52 | |||
| 53 | typedef struct PFR_ExtraItemRec_ |
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| 54 | { |
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| 55 | FT_UInt type; |
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| 56 | PFR_ExtraItem_ParseFunc parser; |
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| 57 | |||
| 58 | } PFR_ExtraItemRec; |
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| 59 | |||
| 60 | typedef const struct PFR_ExtraItemRec_* PFR_ExtraItem; |
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| 61 | |||
| 62 | |||
| 63 | FT_LOCAL( FT_Error ) |
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| 64 | pfr_extra_items_skip( FT_Byte* *pp, |
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| 65 | FT_Byte* limit ); |
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| 66 | |||
| 67 | FT_LOCAL( FT_Error ) |
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| 68 | pfr_extra_items_parse( FT_Byte* *pp, |
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| 69 | FT_Byte* limit, |
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| 70 | PFR_ExtraItem item_list, |
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| 71 | FT_Pointer item_data ); |
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| 72 | |||
| 73 | |||
| 74 | /* load a PFR header */ |
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| 75 | FT_LOCAL( FT_Error ) |
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| 76 | pfr_header_load( PFR_Header header, |
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| 77 | FT_Stream stream ); |
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| 78 | |||
| 79 | /* check a PFR header */ |
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| 80 | FT_LOCAL( FT_Bool ) |
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| 81 | pfr_header_check( PFR_Header header ); |
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| 82 | |||
| 83 | |||
| 84 | /* return number of logical fonts in this file */ |
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| 85 | FT_LOCAL( FT_Error ) |
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| 86 | pfr_log_font_count( FT_Stream stream, |
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| 87 | FT_UInt32 log_section_offset, |
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| 88 | FT_UInt *acount ); |
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| 89 | |||
| 90 | /* load a pfr logical font entry */ |
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| 91 | FT_LOCAL( FT_Error ) |
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| 92 | pfr_log_font_load( PFR_LogFont log_font, |
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| 93 | FT_Stream stream, |
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| 94 | FT_UInt face_index, |
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| 95 | FT_UInt32 section_offset, |
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| 96 | FT_Bool size_increment ); |
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| 97 | |||
| 98 | |||
| 99 | /* load a physical font entry */ |
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| 100 | FT_LOCAL( FT_Error ) |
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| 101 | pfr_phy_font_load( PFR_PhyFont phy_font, |
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| 102 | FT_Stream stream, |
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| 103 | FT_UInt32 offset, |
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| 104 | FT_UInt32 size ); |
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| 105 | |||
| 106 | /* finalize a physical font */ |
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| 107 | FT_LOCAL( void ) |
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| 108 | pfr_phy_font_done( PFR_PhyFont phy_font, |
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| 109 | FT_Memory memory ); |
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| 110 | |||
| 111 | /* */ |
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| 112 | |||
| 113 | FT_END_HEADER |
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| 114 | |||
| 115 | #endif /* __PFRLOAD_H__ */ |
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| 116 | |||
| 117 | |||
| 118 | /* END */ |