2dfb5aca28
improvements compared to "src/type1". Briefly :
- the postscript-like interpreter is now gone. We now perform
pattern-matching to load our font content. The resultant code
is much faster, smaller, and easier to maintain.
For a more detailed description, see the comments at the start
of "src/type1z/t1objs.c"
- the glyph loader will be greatly simplified really soon, and the
clumsy hinter will be ditched in favor of a more general auto-hinting
module (when we get one).
The goal is to strip down the Type1 driver to about 15-20 Kb.
This is still an experimental version. It is added to the repository
for archiving. You should not try to use it for now (it won't work
because some crucial parts are _knowingly_ ignored for now !).
Note that the "old" type1 driver will probably move to the "demos/src"
directory, in order to show how one can replace one given font driver
at runtime (and to provide the functionality of the "t1dump" program).
303 lines
9.0 KiB
C
303 lines
9.0 KiB
C
/*******************************************************************
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*
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* t1objs.h 1.0
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*
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* Type1 objects definition.
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*
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* Copyright 1996-1999 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used
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* modified and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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******************************************************************/
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#ifndef T1OBJS_H
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#define T1OBJS_H
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#include <ftobjs.h>
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#include <t1config.h>
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#include <t1errors.h>
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#include <t1types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* The following structures must be defined by the hinter */
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typedef struct T1_Size_Hints_ T1_Size_Hints;
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typedef struct T1_Glyph_Hints_ T1_Glyph_Hints;
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/***********************************************************************/
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/* */
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/* <Type> T1_Driver */
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/* */
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/* <Description> */
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/* A handle to a Type 1 driver object. */
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/* */
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typedef struct T1_DriverRec_ *T1_Driver;
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/***********************************************************************/
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/* */
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/* <Type> T1_Size */
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/* */
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/* <Description> */
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/* A handle to a Type 1 size object. */
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/* */
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typedef struct T1_SizeRec_* T1_Size;
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/***********************************************************************/
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/* */
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/* <Type> T1_GlyphSlot */
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/* */
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/* <Description> */
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/* A handle to a Type 1 glyph slot object. */
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/* */
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typedef struct T1_GlyphSlotRec_* T1_GlyphSlot;
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/***********************************************************************/
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/* */
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/* <Type> T1_CharMap */
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/* */
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/* <Description> */
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/* A handle to a Type 1 character mapping object. */
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/* */
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/* <Note> */
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/* The Type 1 format doesn't use a charmap but an encoding table. */
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/* The driver is responsible for making up charmap objects */
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/* corresponding to these tables.. */
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/* */
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typedef struct T1_CharMapRec_* T1_CharMap;
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/**************************************************************************/
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/* */
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/* NOW BEGINS THE TYPE1 SPECIFIC STUFF .............................. */
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/* */
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/**************************************************************************/
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/***************************************************/
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/* */
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/* T1_Size : */
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/* */
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/* Type 1 size record.. */
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/* */
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typedef struct T1_SizeRec_
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{
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FT_SizeRec root;
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T1_Bool valid;
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T1_Size_Hints* hints; /* defined in the hinter. This allows */
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/* us to experiment with different */
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/* hinting schemes without having to */
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/* change 't1objs' each time.. */
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} T1_SizeRec;
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/***************************************************/
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/* */
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/* T1_GlyphSlot : */
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/* */
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/* TrueDoc glyph record.. */
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/* */
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typedef struct T1_GlyphSlotRec_
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{
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FT_GlyphSlotRec root;
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T1_Bool hint;
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T1_Bool scaled;
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T1_Int max_points;
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T1_Int max_contours;
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FT_Fixed x_scale;
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FT_Fixed y_scale;
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T1_Glyph_Hints* hints; /* defined in the hinter */
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} T1_GlyphSlotRec;
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/*******************************************************************
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*
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* <Function> T1_Init_Face
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*
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* <Description>
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* Initialise a given Type 1 face object
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*
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* <Input>
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* face_index :: index of font face in resource
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* resource :: source font resource
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* face :: face record to build
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*
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* <Return>
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* Error code.
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*
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******************************************************************/
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LOCAL_DEF
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T1_Error T1_Init_Face( FT_Stream stream,
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FT_Int face_index,
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T1_Face face );
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/*******************************************************************
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*
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* <Function> T1_Done_Face
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*
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* <Description>
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* Finalise a given face object
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*
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* <Input>
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* face :: handle to the face object to destroy
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*
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******************************************************************/
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LOCAL_DEF
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void T1_Done_Face( T1_Face face );
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/*******************************************************************
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*
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* <Function> T1_Init_Size
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*
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* <Description>
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* Initialise a new Type 1 size object
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*
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* <Input>
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* size :: handle to size object
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*
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* <Return>
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* Type 1 error code. 0 means success.
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*
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******************************************************************/
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LOCAL_DEF
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T1_Error T1_Init_Size( T1_Size size );
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/*******************************************************************
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*
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* <Function> T1_Done_Size
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*
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* <Description>
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* The Type 1 size object finaliser.
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*
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* <Input>
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* size :: handle to the target size object.
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*
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******************************************************************/
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LOCAL_DEF
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void T1_Done_Size( T1_Size size );
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/*******************************************************************
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*
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* <Function> T1_Reset_Size
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*
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* <Description>
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* Reset a Type 1 size when resolutions and character dimensions
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* have been changed..
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*
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* <Input>
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* size :: handle to the target size object.
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*
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******************************************************************/
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LOCAL_DEF
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T1_Error T1_Reset_Size( T1_Size size );
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/*******************************************************************
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*
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* <Function> T1_Init_GlyphSlot
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*
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* <Description> The TrueType glyph slot initialiser
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*
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* <Input> glyph :: glyph record to build.
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*
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* <Output> Error code.
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*
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******************************************************************/
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LOCAL_DEF
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T1_Error T1_Init_GlyphSlot( T1_GlyphSlot slot );
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/*******************************************************************
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*
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* <Function> T1_Done_GlyphSlot
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*
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* <Description> The Type 1 glyph slot finaliser
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*
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* <Input> glyph :: handle to glyph slot object
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*
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* <Output> Error code.
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*
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******************************************************************/
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LOCAL_DEF
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void T1_Done_GlyphSlot( T1_GlyphSlot slot );
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/*******************************************************************
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*
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* <Function> T1_Init_Driver
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*
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* <Description>
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* Initialise a given Type 1 driver object
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*
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* <Input>
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* driver :: handle to target driver object
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*
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* <Return>
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* Error code.
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*
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******************************************************************/
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LOCAL_DEF
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T1_Error T1_Init_Driver( T1_Driver driver );
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/*******************************************************************
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*
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* <Function> T1_Done_Driver
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*
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* <Description>
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* finalise a given Type 1 driver
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*
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* <Input>
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* driver :: handle to target Type 1 driver
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*
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******************************************************************/
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LOCAL_DEF
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void T1_Done_Driver( T1_Driver driver );
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#ifdef __cplusplus
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}
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#endif
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#endif /* T1OBJS_H */
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/* END */
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