SVG document corresponding to a glyphID is fetched and stored in an `FT_SVG_Document' structure which is referenced in the glyphslot. * include/freetype/config/ftheader.h: Adds `FT_OTSVG_H'. * include/freetype/ftimage.h: Adds `FT_GLYPH_FORMAT_SVG'. * include/freetype/internal/ftobjs.h: Adds `FT_GLYPH_OWN_GZIP_SVG'. * include/freetype/internal/sfnt.h: Adds `load_svg_doc' and its function type `TT_Load_Svg_Doc_Func'. * include/freetype/otsvg.h: Adds `FT_SVG_Document' and its struct. * src/base/ftobjs.c: Adds code to allocate and free memory for `FT_SVG_Document' in `slot->other'. * src/cff/cffgload.c: Adds code to load SVG glyph if it's present. * src/truetype/ttgload.c: Ditto. * src/sfnt/sfdriver.c: Adds `tt_face_load_svg_doc'. * src/sfnt/ttsvg.h: Ditto. * src/sfnt/ttsvg.c: Adds implementation of `tt_face_load_svg_doc' and its helper functions.ot-svg-clean
Moazin Khatti
6 years ago
parent
92eeba75c4
commit
ce64d9cbf1
11 changed files with 490 additions and 11 deletions
@ -0,0 +1,91 @@ |
||||
/****************************************************************************
|
||||
* |
||||
* otsvg.h |
||||
* |
||||
* Interface for OT-SVG support related things (specification). |
||||
* |
||||
* Copyright (C) 2004-2019 by |
||||
* David Turner, Robert Wilhelm, Werner Lemberg and Moazin Khatti. |
||||
* |
||||
* 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 FTSVG_RENDERER_H_ |
||||
#define FTSVG_RENDERER_H_ |
||||
|
||||
#include <ft2build.h> |
||||
#include FT_FREETYPE_H |
||||
|
||||
#ifdef FREETYPE_H |
||||
#error "freetype.h of FreeType 1 has been loaded!" |
||||
#error "Please fix the directory search order for header files" |
||||
#error "so that freetype.h of FreeType 2 is found first." |
||||
#endif |
||||
|
||||
FT_BEGIN_HEADER |
||||
|
||||
/**************************************************************************
|
||||
* |
||||
* @struct: |
||||
* FT_SVG_DocumentRec_ |
||||
* |
||||
* @description: |
||||
* A structure that models one SVG document. |
||||
* |
||||
* @fields: |
||||
* svg_document :: |
||||
* A pointer to the SVG document string. |
||||
* |
||||
* svg_document_length :: |
||||
* The length of the SVG document string. |
||||
* |
||||
* metrics :: |
||||
* A metrics object storing the size information. |
||||
* |
||||
* units_per_EM :: |
||||
* The size of the EM square. |
||||
* |
||||
* start_glyph_id :: |
||||
* The starting glyph ID for the glyph range that this document has. |
||||
* |
||||
* end_glyph_id :: |
||||
* The ending glyph ID for the glyph range that this document has. |
||||
* |
||||
* @note: |
||||
* `metrics` and `units_per_EM` might look like repetitions since both |
||||
* fields are stored in face object, but they are not; When the slot is |
||||
* passed down to a renderer, the renderer can only access the `metrics` |
||||
* and `units_per_EM` by `slot->face`. However, when `FT_Glyph_To_Bitmap` |
||||
* sets up a dummy object, it has no way to set a `face` object. Thus, |
||||
* metrics information and units_per_EM (which is necessary for OT-SVG) |
||||
* has to be stored separately. |
||||
*/ |
||||
|
||||
typedef struct FT_SVG_DocumentRec_ |
||||
{ |
||||
FT_Byte* svg_document; |
||||
FT_ULong svg_document_length; |
||||
FT_Size_Metrics metrics; |
||||
FT_UShort units_per_EM; |
||||
FT_UShort start_glyph_id; |
||||
FT_UShort end_glyph_id; |
||||
} FT_SVG_DocumentRec; |
||||
|
||||
/**************************************************************************
|
||||
* |
||||
* @type: |
||||
* FT_SVG_Document |
||||
* |
||||
* @description: |
||||
* A handle to a FT_SVG_DocumentRec object. |
||||
*/ |
||||
typedef struct FT_SVG_DocumentRec_* FT_SVG_Document; |
||||
|
||||
FT_END_HEADER |
||||
#endif |
||||
Loading…
Reference in new issue