kc3-lang/freetype/src/truetype/ttgxvar.h
-
Show log
Commit
-
Hash : a8652c59
Author :
Date : 2016-12-18T18:12:03
[truetype, cff] Extend `get_var_blend' function of MM service. In particular, we need access to named instance data. * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): Add argument for `FT_MM_Var'. * src/cff/cffload.c (cff_get_var_blend): Updated. * src/cff/cffload.h: Updated. * src/cff/cf2ft.c (cf2_getNormalizedVector): Updated. * src/truetype/ttgxvar.c (tt_get_var_blend): Updated. Accept value `NULL' for arguments. * src/truetype/ttgxvar.h: Updated.
-
src/truetype/ttgxvar.h
-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278
/***************************************************************************/ /* */ /* ttgxvar.h */ /* */ /* TrueType GX Font Variation loader (specification) */ /* */ /* Copyright 2004-2016 by */ /* David Turner, Robert Wilhelm, Werner Lemberg and George Williams. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef TTGXVAR_H_ #define TTGXVAR_H_ #include <ft2build.h> #include "ttobjs.h" FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Struct> */ /* GX_AVarCorrespondenceRec */ /* */ /* <Description> */ /* A data structure representing `shortFracCorrespondence' in `avar' */ /* table according to the specifications from Apple. */ /* */ typedef struct GX_AVarCorrespondenceRec_ { FT_Fixed fromCoord; FT_Fixed toCoord; } GX_AVarCorrespondenceRec_, *GX_AVarCorrespondence; /*************************************************************************/ /* */ /* <Struct> */ /* GX_AVarRec */ /* */ /* <Description> */ /* Data from the segment field of `avar' table. */ /* There is one of these for each axis. */ /* */ typedef struct GX_AVarSegmentRec_ { FT_UShort pairCount; GX_AVarCorrespondence correspondence; /* array with pairCount entries */ } GX_AVarSegmentRec, *GX_AVarSegment; typedef struct GX_HVarDataRec_ { FT_UInt itemCount; /* number of delta sets per item */ FT_UInt regionIdxCount; /* number of region indices in this data */ FT_UInt* regionIndices; /* array of `regionCount' indices; */ /* these index `varRegionList' */ FT_Short* deltaSet; /* array of `itemCount' deltas */ /* use `innerIndex' for this array */ } GX_HVarDataRec, *GX_HVarData; /* contribution of one axis to a region */ typedef struct GX_AxisCoordsRec_ { FT_Fixed startCoord; FT_Fixed peakCoord; /* zero means no effect (factor = 1) */ FT_Fixed endCoord; } GX_AxisCoordsRec, *GX_AxisCoords; typedef struct GX_HVarRegionRec_ { GX_AxisCoords axisList; /* array of axisCount records */ } GX_HVarRegionRec, *GX_HVarRegion; /* HVAR item variation store */ typedef struct GX_HVStoreRec_ { FT_UInt dataCount; GX_HVarData varData; /* array of dataCount records; */ /* use `outerIndex' for this array */ FT_UShort axisCount; FT_UInt regionCount; /* total number of regions defined */ GX_HVarRegion varRegionList; } GX_HVStoreRec, *GX_HVStore; typedef struct GX_WidthMapRec_ { FT_UInt mapCount; FT_UInt* outerIndex; /* indices to item var data */ FT_UInt* innerIndex; /* indices to delta set */ } GX_WidthMapRec, *GX_WidthMap; /*************************************************************************/ /* */ /* <Struct> */ /* GX_HVarTableRec */ /* */ /* <Description> */ /* Data from the `HVAR' table. */ /* */ typedef struct GX_HVarTableRec_ { GX_HVStoreRec itemStore; /* Item Variation Store */ GX_WidthMapRec widthMap; /* Advance Width Mapping */ #if 0 GX_LSBMap LsbMap; /* not implemented */ GX_RSBMap RsbMap; /* not implemented */ #endif } GX_HVarTableRec, *GX_HVarTable; /*************************************************************************/ /* */ /* <Struct> */ /* GX_BlendRec */ /* */ /* <Description> */ /* Data for interpolating a font from a distortable font specified */ /* by the GX *var tables ([fgca]var). */ /* */ /* <Fields> */ /* num_axis :: The number of axes along which interpolation */ /* may happen */ /* */ /* normalizedcoords :: A normalized value (between [-1,1]) indicating */ /* the contribution along each axis to the final */ /* interpolated font. */ /* */ typedef struct GX_BlendRec_ { FT_UInt num_axis; FT_Fixed* normalizedcoords; FT_MM_Var* mmvar; FT_Offset mmvar_len; FT_Bool avar_checked; GX_AVarSegment avar_segment; FT_Bool hvar_loaded; FT_Bool hvar_checked; FT_Error hvar_error; GX_HVarTable hvar_table; FT_UInt tuplecount; /* shared tuples in `gvar' */ FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ FT_UInt gv_glyphcnt; FT_ULong* glyphoffsets; FT_ULong gvar_size; } GX_BlendRec; /*************************************************************************/ /* */ /* <enum> */ /* GX_TupleCountFlags */ /* */ /* <Description> */ /* Flags used within the `TupleCount' field of the `gvar' table. */ /* */ typedef enum GX_TupleCountFlags_ { GX_TC_TUPLES_SHARE_POINT_NUMBERS = 0x8000, GX_TC_RESERVED_TUPLE_FLAGS = 0x7000, GX_TC_TUPLE_COUNT_MASK = 0x0FFF } GX_TupleCountFlags; /*************************************************************************/ /* */ /* <enum> */ /* GX_TupleIndexFlags */ /* */ /* <Description> */ /* Flags used within the `TupleIndex' field of the `gvar' and `cvar' */ /* tables. */ /* */ typedef enum GX_TupleIndexFlags_ { GX_TI_EMBEDDED_TUPLE_COORD = 0x8000, GX_TI_INTERMEDIATE_TUPLE = 0x4000, GX_TI_PRIVATE_POINT_NUMBERS = 0x2000, GX_TI_RESERVED_TUPLE_FLAG = 0x1000, GX_TI_TUPLE_INDEX_MASK = 0x0FFF } GX_TupleIndexFlags; #define TTAG_wght FT_MAKE_TAG( 'w', 'g', 'h', 't' ) #define TTAG_wdth FT_MAKE_TAG( 'w', 'd', 't', 'h' ) #define TTAG_opsz FT_MAKE_TAG( 'o', 'p', 's', 'z' ) #define TTAG_slnt FT_MAKE_TAG( 's', 'l', 'n', 't' ) FT_LOCAL( FT_Error ) TT_Set_MM_Blend( TT_Face face, FT_UInt num_coords, FT_Fixed* coords ); FT_LOCAL( FT_Error ) TT_Get_MM_Blend( TT_Face face, FT_UInt num_coords, FT_Fixed* coords ); FT_LOCAL( FT_Error ) TT_Set_Var_Design( TT_Face face, FT_UInt num_coords, FT_Fixed* coords ); FT_LOCAL( FT_Error ) TT_Get_MM_Var( TT_Face face, FT_MM_Var* *master ); FT_LOCAL( FT_Error ) TT_Get_Var_Design( TT_Face face, FT_UInt num_coords, FT_Fixed* coords ); FT_LOCAL( FT_Error ) tt_face_vary_cvt( TT_Face face, FT_Stream stream ); FT_LOCAL( FT_Error ) TT_Vary_Apply_Glyph_Deltas( TT_Face face, FT_UInt glyph_index, FT_Outline* outline, FT_UInt n_points ); FT_LOCAL( FT_Error ) tt_hadvance_adjust( TT_Face face, FT_UInt gindex, FT_Int *adelta ); FT_LOCAL( FT_Error ) tt_get_var_blend( TT_Face face, FT_UInt *num_coords, FT_Fixed* *coords, FT_MM_Var* *mm_var ); FT_LOCAL( void ) tt_done_blend( TT_Face face ); FT_END_HEADER #endif /* TTGXVAR_H_ */ /* END */