1 /**************************************************************************** 2 * 3 * ftgasp.c 4 * 5 * Access of TrueType's `gasp' table (body). 6 * 7 * Copyright 2007-2018 by 8 * David Turner, Robert Wilhelm, and Werner Lemberg. 9 * 10 * This file is part of the FreeType project, and may only be used, 11 * modified, and distributed under the terms of the FreeType project 12 * license, LICENSE.TXT. By continuing to use, modify, or distribute 13 * this file you indicate that you have read the license and 14 * understand and accept it fully. 15 * 16 */ 17 18 19 #include <ft2build.h> 20 #include FT_GASP_H 21 #include FT_INTERNAL_TRUETYPE_TYPES_H 22 23 24 FT_EXPORT_DEF( FT_Int ) 25 FT_Get_Gasp( FT_Face face, 26 FT_UInt ppem ) 27 { 28 FT_Int result = FT_GASP_NO_TABLE; 29 30 31 if ( face && FT_IS_SFNT( face ) ) 32 { 33 TT_Face ttface = (TT_Face)face; 34 35 36 if ( ttface->gasp.numRanges > 0 ) 37 { 38 TT_GaspRange range = ttface->gasp.gaspRanges; 39 TT_GaspRange range_end = range + ttface->gasp.numRanges; 40 41 42 while ( ppem > range->maxPPEM ) 43 { 44 range++; 45 if ( range >= range_end ) 46 goto Exit; 47 } 48 49 result = range->gaspFlag; 50 51 /* ensure that we don't have spurious bits */ 52 if ( ttface->gasp.version == 0 ) 53 result &= 3; 54 } 55 } 56 Exit: 57 return result; 58 } 59 60 61 /* END */ 62
