diff options
Diffstat (limited to 'src/truetype/ttgxvar.h')
| -rw-r--r-- | src/truetype/ttgxvar.h | 106 |
1 files changed, 94 insertions, 12 deletions
diff --git a/src/truetype/ttgxvar.h b/src/truetype/ttgxvar.h index c59d52809..a37bb9026 100644 --- a/src/truetype/ttgxvar.h +++ b/src/truetype/ttgxvar.h @@ -4,7 +4,7 @@ /* */ /* TrueType GX Font Variation loader (specification) */ /* */ -/* Copyright 2004-2017 by */ +/* Copyright 2004-2018 by */ /* David Turner, Robert Wilhelm, Werner Lemberg and George Williams. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -27,6 +27,8 @@ FT_BEGIN_HEADER +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /*************************************************************************/ /* */ /* <Struct> */ @@ -214,19 +216,92 @@ FT_BEGIN_HEADER /* */ /* <Description> */ /* Data for interpolating a font from a distortable font specified */ - /* by the GX *var tables ([fgca]var). */ + /* by the GX *var tables ([fgcahvm]var). */ /* */ /* <Fields> */ - /* num_axis :: The number of axes along which interpolation */ - /* may happen */ + /* num_axis :: */ + /* The number of axes along which interpolation may happen. */ + /* */ + /* coords :: */ + /* An array of design coordinates (in user space) indicating the */ + /* contribution along each axis to the final interpolated font. */ + /* `normalizedcoords' holds the same values. */ + /* */ + /* normalizedcoords :: */ + /* An array of normalized values (between [-1,1]) indicating the */ + /* contribution along each axis to the final interpolated font. */ + /* `coords' holds the same values. */ + /* */ + /* mmvar :: */ + /* Data from the `fvar' table. */ + /* */ + /* mmvar_len :: */ + /* The length of the `mmvar' structure. */ + /* */ + /* normalized_stylecoords :: */ + /* A two-dimensional array that holds the named instance data from */ + /* `mmvar' as normalized values. */ + /* */ + /* avar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `avar' */ + /* table. */ + /* */ + /* avar_segment :: */ + /* Data from the `avar' table. */ + /* */ + /* hvar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `hvar' */ + /* table. */ + /* */ + /* hvar_checked :: */ + /* A Boolean; if set, FreeType successfully loaded and parsed the */ + /* `hvar' table. */ + /* */ + /* hvar_error :: */ + /* If loading and parsing of the `hvar' table failed, this field */ + /* holds the corresponding error code. */ + /* */ + /* hvar_table :: */ + /* Data from the `hvar' table. */ /* */ - /* normalizedcoords :: A normalized value (between [-1,1]) indicating */ - /* the contribution along each axis to the final */ - /* interpolated font. */ + /* vvar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `vvar' */ + /* table. */ + /* */ + /* vvar_checked :: */ + /* A Boolean; if set, FreeType successfully loaded and parsed the */ + /* `vvar' table. */ + /* */ + /* vvar_error :: */ + /* If loading and parsing of the `vvar' table failed, this field */ + /* holds the corresponding error code. */ + /* */ + /* vvar_table :: */ + /* Data from the `vvar' table. */ + /* */ + /* mvar_table :: */ + /* Data from the `mvar' table. */ + /* */ + /* tuplecount :: */ + /* The number of shared tuples in the `gvar' table. */ + /* */ + /* tuplecoords :: */ + /* A two-dimensional array that holds the shared tuple coordinates */ + /* in the `gvar' table. */ + /* */ + /* gv_glyphcnt :: */ + /* The number of glyphs handled in the `gvar' table. */ + /* */ + /* glyphoffsets :: */ + /* Offsets into the glyph variation data array. */ + /* */ + /* gvar_size :: */ + /* The size of the `gvar' table. */ /* */ typedef struct GX_BlendRec_ { FT_UInt num_axis; + FT_Fixed* coords; FT_Fixed* normalizedcoords; FT_MM_Var* mmvar; @@ -235,8 +310,8 @@ FT_BEGIN_HEADER FT_Fixed* normalized_stylecoords; /* normalized_stylecoords[num_namedstyles][num_axis] */ - FT_Bool avar_checked; - GX_AVarSegment avar_segment; + FT_Bool avar_loaded; + GX_AVarSegment avar_segment; /* avar_segment[num_axis] */ FT_Bool hvar_loaded; FT_Bool hvar_checked; @@ -250,11 +325,11 @@ FT_BEGIN_HEADER GX_MVarTable mvar_table; - FT_UInt tuplecount; /* shared tuples in `gvar' */ - FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ + FT_UInt tuplecount; + FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ FT_UInt gv_glyphcnt; - FT_ULong* glyphoffsets; + FT_ULong* glyphoffsets; /* glyphoffsets[gv_glyphcnt + 1] */ FT_ULong gvar_size; @@ -329,6 +404,10 @@ FT_BEGIN_HEADER FT_Fixed* coords ); FT_LOCAL( FT_Error ) + TT_Set_Named_Instance( TT_Face face, + FT_UInt instance_index ); + + FT_LOCAL( FT_Error ) tt_face_vary_cvt( TT_Face face, FT_Stream stream ); @@ -356,11 +435,14 @@ FT_BEGIN_HEADER tt_get_var_blend( TT_Face face, FT_UInt *num_coords, FT_Fixed* *coords, + FT_Fixed* *normalizedcoords, FT_MM_Var* *mm_var ); FT_LOCAL( void ) tt_done_blend( TT_Face face ); +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + FT_END_HEADER |