third_party/freetype/include/internal/sfnt.h - Issue 1416993005: Merge to XFA: Update bundled freetype to 2.6.1

Unified Diff: third_party/freetype/include/internal/sfnt.h

Issue 1416993005: Merge to XFA: Update bundled freetype to 2.6.1 (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa

Patch Set: Created 5 years, 1 month ago

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Index: third_party/freetype/include/internal/sfnt.h

diff --git a/third_party/freetype/include/internal/sfnt.h b/third_party/freetype/include/internal/sfnt.h

deleted file mode 100644

index d558e869bda3a4c44b3129e71918fb3d414dc2dc..0000000000000000000000000000000000000000

--- a/third_party/freetype/include/internal/sfnt.h

+++ /dev/null

@@ -1,711 +0,0 @@

-/***************************************************************************/

-/* */

-/* sfnt.h */

-/* */

-/* High-level `sfnt' driver interface (specification). */

-/* */

-/* David Turner, Robert Wilhelm, and Werner Lemberg. */

-/* */

-/* 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 __SFNT_H__

-#define __SFNT_H__

-#include <ft2build.h>

-#include FT_INTERNAL_DRIVER_H

-#include FT_INTERNAL_TRUETYPE_TYPES_H

-FT_BEGIN_HEADER

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Init_Face_Func */

- /* */

- /* <Description> */

- /* First part of the SFNT face object initialization. This finds */

- /* the face in a SFNT file or collection, and load its format tag in */

- /* face->format_tag. */

- /* */

- /* <Input> */

- /* stream :: The input stream. */

- /* */

- /* face :: A handle to the target face object. */

- /* */

- /* face_index :: The index of the TrueType font, if we are opening a */

- /* collection. */

- /* */

- /* num_params :: The number of additional parameters. */

- /* */

- /* params :: Optional additional parameters. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. */

- /* */

- /* <Note> */

- /* The stream cursor must be at the font file's origin. */

- /* */

- /* This function recognizes fonts embedded in a `TrueType */

- /* collection'. */

- /* */

- /* Once the format tag has been validated by the font driver, it */

- /* should then call the TT_Load_Face_Func() callback to read the rest */

- /* of the SFNT tables in the object. */

- /* */

- typedef FT_Error

- (*TT_Init_Face_Func)( FT_Stream stream,

- TT_Face face,

- FT_Int face_index,

- FT_Int num_params,

- FT_Parameter* params );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_Face_Func */

- /* */

- /* <Description> */

- /* Second part of the SFNT face object initialization. This loads */

- /* the common SFNT tables (head, OS/2, maxp, metrics, etc.) in the */

- /* face object. */

- /* */

- /* <Input> */

- /* stream :: The input stream. */

- /* */

- /* face :: A handle to the target face object. */

- /* */

- /* face_index :: The index of the TrueType font, if we are opening a */

- /* collection. */

- /* */

- /* num_params :: The number of additional parameters. */

- /* */

- /* params :: Optional additional parameters. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. */

- /* */

- /* <Note> */

- /* This function must be called after TT_Init_Face_Func(). */

- /* */

- typedef FT_Error

- (*TT_Load_Face_Func)( FT_Stream stream,

- TT_Face face,

- FT_Int face_index,

- FT_Int num_params,

- FT_Parameter* params );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Done_Face_Func */

- /* */

- /* <Description> */

- /* A callback used to delete the common SFNT data from a face. */

- /* */

- /* <Input> */

- /* face :: A handle to the target face object. */

- /* */

- /* <Note> */

- /* This function does NOT destroy the face object. */

- /* */

- typedef void

- (*TT_Done_Face_Func)( TT_Face face );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_Any_Func */

- /* */

- /* <Description> */

- /* Load any font table into client memory. */

- /* */

- /* <Input> */

- /* face :: The face object to look for. */

- /* */

- /* tag :: The tag of table to load. Use the value 0 if you want */

- /* to access the whole font file, else set this parameter */

- /* to a valid TrueType table tag that you can forge with */

- /* the MAKE_TT_TAG macro. */

- /* */

- /* offset :: The starting offset in the table (or the file if */

- /* tag == 0). */

- /* */

- /* length :: The address of the decision variable: */

- /* */

- /* If length == NULL: */

- /* Loads the whole table. Returns an error if */

- /* `offset' == 0! */

- /* */

- /* If *length == 0: */

- /* Exits immediately; returning the length of the given */

- /* table or of the font file, depending on the value of */

- /* `tag'. */

- /* */

- /* If *length != 0: */

- /* Loads the next `length' bytes of table or font, */

- /* starting at offset `offset' (in table or font too). */

- /* */

- /* <Output> */

- /* buffer :: The address of target buffer. */

- /* */

- /* <Return> */

- /* TrueType error code. 0 means success. */

- /* */

- typedef FT_Error

- (*TT_Load_Any_Func)( TT_Face face,

- FT_ULong tag,

- FT_Long offset,

- FT_Byte *buffer,

- FT_ULong* length );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Find_SBit_Image_Func */

- /* */

- /* <Description> */

- /* Check whether an embedded bitmap (an `sbit') exists for a given */

- /* glyph, at a given strike. */

- /* */

- /* <Input> */

- /* face :: The target face object. */

- /* */

- /* glyph_index :: The glyph index. */

- /* */

- /* strike_index :: The current strike index. */

- /* */

- /* <Output> */

- /* arange :: The SBit range containing the glyph index. */

- /* */

- /* astrike :: The SBit strike containing the glyph index. */

- /* */

- /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. Returns */

- /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */

- /* glyph. */

- /* */

- typedef FT_Error

- (*TT_Find_SBit_Image_Func)( TT_Face face,

- FT_UInt glyph_index,

- FT_ULong strike_index,

- TT_SBit_Range *arange,

- TT_SBit_Strike *astrike,

- FT_ULong *aglyph_offset );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_SBit_Metrics_Func */

- /* */

- /* <Description> */

- /* Get the big metrics for a given embedded bitmap. */

- /* */

- /* <Input> */

- /* stream :: The input stream. */

- /* */

- /* range :: The SBit range containing the glyph. */

- /* */

- /* <Output> */

- /* big_metrics :: A big SBit metrics structure for the glyph. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. */

- /* */

- /* <Note> */

- /* The stream cursor must be positioned at the glyph's offset within */

- /* the `EBDT' table before the call. */

- /* */

- /* If the image format uses variable metrics, the stream cursor is */

- /* positioned just after the metrics header in the `EBDT' table on */

- /* function exit. */

- /* */

- typedef FT_Error

- (*TT_Load_SBit_Metrics_Func)( FT_Stream stream,

- TT_SBit_Range range,

- TT_SBit_Metrics metrics );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_SBit_Image_Func */

- /* */

- /* <Description> */

- /* Load a given glyph sbit image from the font resource. This also */

- /* returns its metrics. */

- /* */

- /* <Input> */

- /* face :: */

- /* The target face object. */

- /* */

- /* strike_index :: */

- /* The strike index. */

- /* */

- /* glyph_index :: */

- /* The current glyph index. */

- /* */

- /* load_flags :: */

- /* The current load flags. */

- /* */

- /* stream :: */

- /* The input stream. */

- /* */

- /* <Output> */

- /* amap :: */

- /* The target pixmap. */

- /* */

- /* ametrics :: */

- /* A big sbit metrics structure for the glyph image. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. Returns an error if no */

- /* glyph sbit exists for the index. */

- /* */

- /* <Note> */

- /* The `map.buffer' field is always freed before the glyph is loaded. */

- /* */

- typedef FT_Error

- (*TT_Load_SBit_Image_Func)( TT_Face face,

- FT_ULong strike_index,

- FT_UInt glyph_index,

- FT_UInt load_flags,

- FT_Stream stream,

- FT_Bitmap *amap,

- TT_SBit_MetricsRec *ametrics );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Set_SBit_Strike_Func */

- /* */

- /* <Description> */

- /* Select an sbit strike for a given size request. */

- /* */

- /* <Input> */

- /* face :: The target face object. */

- /* */

- /* req :: The size request. */

- /* */

- /* <Output> */

- /* astrike_index :: The index of the sbit strike. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. Returns an error if no */

- /* sbit strike exists for the selected ppem values. */

- /* */

- typedef FT_Error

- (*TT_Set_SBit_Strike_Func)( TT_Face face,

- FT_Size_Request req,

- FT_ULong* astrike_index );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_Strike_Metrics_Func */

- /* */

- /* <Description> */

- /* Load the metrics of a given strike. */

- /* */

- /* <Input> */

- /* face :: The target face object. */

- /* */

- /* strike_index :: The strike index. */

- /* */

- /* <Output> */

- /* metrics :: the metrics of the strike. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. Returns an error if no */

- /* such sbit strike exists. */

- /* */

- typedef FT_Error

- (*TT_Load_Strike_Metrics_Func)( TT_Face face,

- FT_ULong strike_index,

- FT_Size_Metrics* metrics );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Get_PS_Name_Func */

- /* */

- /* <Description> */

- /* Get the PostScript glyph name of a glyph. */

- /* */

- /* <Input> */

- /* idx :: The glyph index. */

- /* */

- /* PSname :: The address of a string pointer. Will be NULL in case */

- /* of error, otherwise it is a pointer to the glyph name. */

- /* */

- /* You must not modify the returned string! */

- /* */

- /* <Output> */

- /* FreeType error code. 0 means success. */

- /* */

- typedef FT_Error

- (*TT_Get_PS_Name_Func)( TT_Face face,

- FT_UInt idx,

- FT_String** PSname );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_Metrics_Func */

- /* */

- /* <Description> */

- /* Load a metrics table, which is a table with a horizontal and a */

- /* vertical version. */

- /* */

- /* <Input> */

- /* face :: A handle to the target face object. */

- /* */

- /* stream :: The input stream. */

- /* */

- /* vertical :: A boolean flag. If set, load the vertical one. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. */

- /* */

- typedef FT_Error

- (*TT_Load_Metrics_Func)( TT_Face face,

- FT_Stream stream,

- FT_Bool vertical );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Get_Metrics_Func */

- /* */

- /* <Description> */

- /* Load the horizontal or vertical header in a face object. */

- /* */

- /* <Input> */

- /* face :: A handle to the target face object. */

- /* */

- /* vertical :: A boolean flag. If set, load vertical metrics. */

- /* */

- /* gindex :: The glyph index. */

- /* */

- /* <Output> */

- /* abearing :: The horizontal (or vertical) bearing. Set to zero in */

- /* case of error. */

- /* */

- /* aadvance :: The horizontal (or vertical) advance. Set to zero in */

- /* case of error. */

- /* */

- typedef void

- (*TT_Get_Metrics_Func)( TT_Face face,

- FT_Bool vertical,

- FT_UInt gindex,

- FT_Short* abearing,

- FT_UShort* aadvance );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Load_Table_Func */

- /* */

- /* <Description> */

- /* Load a given TrueType table. */

- /* */

- /* <Input> */

- /* face :: A handle to the target face object. */

- /* */

- /* stream :: The input stream. */

- /* */

- /* <Return> */

- /* FreeType error code. 0 means success. */

- /* */

- /* <Note> */

- /* The function uses `face->goto_table' to seek the stream to the */

- /* start of the table, except while loading the font directory. */

- /* */

- typedef FT_Error

- (*TT_Load_Table_Func)( TT_Face face,

- FT_Stream stream );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* TT_Free_Table_Func */

- /* */

- /* <Description> */

- /* Free a given TrueType table. */

- /* */

- /* <Input> */

- /* face :: A handle to the target face object. */

- /* */

- typedef void

- (*TT_Free_Table_Func)( TT_Face face );

- /*

- * @functype:

- * TT_Face_GetKerningFunc

- *

- * @description:

- * Return the horizontal kerning value between two glyphs.

- *

- * @input:

- * face :: A handle to the source face object.

- * left_glyph :: The left glyph index.

- * right_glyph :: The right glyph index.

- *

- * @return:

- * The kerning value in font units.

- */

- typedef FT_Int

- (*TT_Face_GetKerningFunc)( TT_Face face,

- FT_UInt left_glyph,

- FT_UInt right_glyph );

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* SFNT_Interface */

- /* */

- /* <Description> */

- /* This structure holds pointers to the functions used to load and */

- /* free the basic tables that are required in a `sfnt' font file. */

- /* */

- /* <Fields> */

- /* Check the various xxx_Func() descriptions for details. */

- /* */

- typedef struct SFNT_Interface_

- {

- TT_Loader_GotoTableFunc goto_table;

- TT_Init_Face_Func init_face;

- TT_Load_Face_Func load_face;

- TT_Done_Face_Func done_face;

- FT_Module_Requester get_interface;

- TT_Load_Any_Func load_any;

- /* these functions are called by `load_face' but they can also */

- /* be called from external modules, if there is a need to do so */

- TT_Load_Table_Func load_head;

- TT_Load_Metrics_Func load_hhea;

- TT_Load_Table_Func load_cmap;

- TT_Load_Table_Func load_maxp;

- TT_Load_Table_Func load_os2;

- TT_Load_Table_Func load_post;

- TT_Load_Table_Func load_name;

- TT_Free_Table_Func free_name;

- /* this field was called `load_kerning' up to version 2.1.10 */

- TT_Load_Table_Func load_kern;

- TT_Load_Table_Func load_gasp;

- TT_Load_Table_Func load_pclt;

- /* see `ttload.h'; this field was called `load_bitmap_header' up to */

- /* version 2.1.10 */

- TT_Load_Table_Func load_bhed;

- TT_Load_SBit_Image_Func load_sbit_image;

- /* see `ttpost.h' */

- TT_Get_PS_Name_Func get_psname;

- TT_Free_Table_Func free_psnames;

- /* starting here, the structure differs from version 2.1.7 */

- /* this field was introduced in version 2.1.8, named `get_psname' */

- TT_Face_GetKerningFunc get_kerning;

- /* new elements introduced after version 2.1.10 */

- /* load the font directory, i.e., the offset table and */

- /* the table directory */

- TT_Load_Table_Func load_font_dir;

- TT_Load_Metrics_Func load_hmtx;

- TT_Load_Table_Func load_eblc;

- TT_Free_Table_Func free_eblc;

- TT_Set_SBit_Strike_Func set_sbit_strike;

- TT_Load_Strike_Metrics_Func load_strike_metrics;

- TT_Get_Metrics_Func get_metrics;

- } SFNT_Interface;

- /* transitional */

- typedef SFNT_Interface* SFNT_Service;

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DEFINE_SFNT_INTERFACE( \

- class_, \

- goto_table_, \

- init_face_, \

- load_face_, \

- done_face_, \

- get_interface_, \

- load_any_, \

- load_head_, \

- load_hhea_, \

- load_cmap_, \

- load_maxp_, \

- load_os2_, \

- load_post_, \

- load_name_, \

- free_name_, \

- load_kern_, \

- load_gasp_, \

- load_pclt_, \

- load_bhed_, \

- load_sbit_image_, \

- get_psname_, \

- free_psnames_, \

- get_kerning_, \

- load_font_dir_, \

- load_hmtx_, \

- load_eblc_, \

- free_eblc_, \

- set_sbit_strike_, \

- load_strike_metrics_, \

- get_metrics_ ) \

- static const SFNT_Interface class_ = \

- { \

- goto_table_, \

- init_face_, \

- load_face_, \

- done_face_, \

- get_interface_, \

- load_any_, \

- load_head_, \

- load_hhea_, \

- load_cmap_, \

- load_maxp_, \

- load_os2_, \

- load_post_, \

- load_name_, \

- free_name_, \

- load_kern_, \

- load_gasp_, \

- load_pclt_, \

- load_bhed_, \

- load_sbit_image_, \

- get_psname_, \

- free_psnames_, \

- get_kerning_, \

- load_font_dir_, \

- load_hmtx_, \

- load_eblc_, \

- free_eblc_, \

- set_sbit_strike_, \

- load_strike_metrics_, \

- get_metrics_, \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_INTERNAL( a, a_ ) \

- clazz->a = a_;

-#define FT_DEFINE_SFNT_INTERFACE( \

- class_, \

- goto_table_, \

- init_face_, \

- load_face_, \

- done_face_, \

- get_interface_, \

- load_any_, \

- load_head_, \

- load_hhea_, \

- load_cmap_, \

- load_maxp_, \

- load_os2_, \

- load_post_, \

- load_name_, \

- free_name_, \

- load_kern_, \

- load_gasp_, \

- load_pclt_, \

- load_bhed_, \

- load_sbit_image_, \

- get_psname_, \

- free_psnames_, \

- get_kerning_, \

- load_font_dir_, \

- load_hmtx_, \

- load_eblc_, \

- free_eblc_, \

- set_sbit_strike_, \

- load_strike_metrics_, \

- get_metrics_ ) \

- void \

- FT_Init_Class_ ## class_( FT_Library library, \

- SFNT_Interface* clazz ) \

- { \

- FT_UNUSED( library ); \

- \

- clazz->goto_table = goto_table_; \

- clazz->init_face = init_face_; \

- clazz->load_face = load_face_; \

- clazz->done_face = done_face_; \

- clazz->get_interface = get_interface_; \

- clazz->load_any = load_any_; \

- clazz->load_head = load_head_; \

- clazz->load_hhea = load_hhea_; \

- clazz->load_cmap = load_cmap_; \

- clazz->load_maxp = load_maxp_; \

- clazz->load_os2 = load_os2_; \

- clazz->load_post = load_post_; \

- clazz->load_name = load_name_; \

- clazz->free_name = free_name_; \

- clazz->load_kern = load_kern_; \

- clazz->load_gasp = load_gasp_; \

- clazz->load_pclt = load_pclt_; \

- clazz->load_bhed = load_bhed_; \

- clazz->load_sbit_image = load_sbit_image_; \

- clazz->get_psname = get_psname_; \

- clazz->free_psnames = free_psnames_; \

- clazz->get_kerning = get_kerning_; \

- clazz->load_font_dir = load_font_dir_; \

- clazz->load_hmtx = load_hmtx_; \

- clazz->load_eblc = load_eblc_; \

- clazz->free_eblc = free_eblc_; \

- clazz->set_sbit_strike = set_sbit_strike_; \

- clazz->load_strike_metrics = load_strike_metrics_; \

- clazz->get_metrics = get_metrics_; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

-FT_END_HEADER

-#endif /* __SFNT_H__ */

-/* END */

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