| 1 | /***************************************************************************/ |
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| 2 | /* */ |
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| 3 | /* ftgasp.c */ |
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| 4 | /* */ |
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| 5 | /* Access of TrueType's `gasp' table (body). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 2007 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 | |
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| 18 | |
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| 19 | #include <ft2build.h> |
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| 20 | #include FT_GASP_H |
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| 21 | #include FT_INTERNAL_TRUETYPE_TYPES_H |
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| 22 | |
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| 23 | |
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| 24 | FT_EXPORT_DEF( FT_Int ) |
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| 25 | FT_Get_Gasp( FT_Face face, |
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| 26 | FT_UInt ppem ) |
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| 27 | { |
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| 28 | FT_Int result = FT_GASP_NO_TABLE; |
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| 29 | |
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| 30 | |
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| 31 | if ( face && FT_IS_SFNT( face ) ) |
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| 32 | { |
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| 33 | TT_Face ttface = (TT_Face)face; |
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| 34 | |
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| 35 | |
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| 36 | if ( ttface->gasp.numRanges > 0 ) |
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| 37 | { |
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| 38 | TT_GaspRange range = ttface->gasp.gaspRanges; |
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| 39 | TT_GaspRange range_end = range + ttface->gasp.numRanges; |
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| 40 | |
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| 41 | |
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| 42 | while ( ppem > range->maxPPEM ) |
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| 43 | { |
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| 44 | range++; |
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| 45 | if ( range >= range_end ) |
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| 46 | goto Exit; |
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| 47 | } |
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| 48 | |
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| 49 | result = range->gaspFlag; |
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| 50 | |
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| 51 | /* ensure that we don't have spurious bits */ |
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| 52 | if ( ttface->gasp.version == 0 ) |
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| 53 | result &= 3; |
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| 54 | } |
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| 55 | } |
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| 56 | Exit: |
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| 57 | return result; |
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| 58 | } |
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| 59 | |
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| 60 | |
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| 61 | /* END */ |
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