486 lines
24 KiB
C
486 lines
24 KiB
C
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/*******************************************************************
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*
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* t1types.h 1.0
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*
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* Basic Type1/Type2 type definitions and interface.
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*
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* This code is shared by the Type1 and Type2 drivers
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*
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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 T1TYPES_H
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#define T1TYPES_H
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#include <freetype.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** DEFINITIONS OF BASIC DATA TYPES ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* The REDEFINE macro is used to convert a FreeType generic type into */
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/* a TrueType-specific one. It simply replaces the "FT_" prefix by "T1_" */
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/* in order to define compatible T1_Long, T1_Error, T1_Outline, etc.. */
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/* */
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#undef REDEFINE
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#define REDEFINE( type ) typedef FT_##type T1_##type
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/* <Type> T1_Bool */
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/* */
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/* <Description> */
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/* A simple typedef of unsigned char, used for simple booleans. */
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/* */
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REDEFINE( Bool );
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/* <Type> T1_FWord */
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/* */
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/* <Description> */
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/* a signed 16-bit integer used to store a distance in original */
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/* font units. */
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/* */
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REDEFINE( FWord );
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/* <Type> T1_UFWord */
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/* */
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/* <Description> */
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/* an unsigned 16-bit integer used to store a distance in original */
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/* font units. */
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/* */
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REDEFINE( UFWord );
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/* <Type> T1_Char */
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/* */
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/* <Description> */
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/* a simple typedef for the _signed_ char type. */
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/* */
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REDEFINE( Char );
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/* <Type> T1_Byte */
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/* */
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/* <Description> */
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/* a simple typedef for the _unsigned_ char type. */
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/* */
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REDEFINE( Byte );
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/* <Type> T1_String */
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/* */
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/* <Description> */
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/* a simple typedef for the char type, used for strings usually. */
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/* */
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REDEFINE( String );
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/* <Type> T1_Short */
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/* */
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/* <Description> */
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/* a typedef for signed short */
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/* */
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REDEFINE( Short );
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/* <Type> T1_UShort */
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/* */
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/* <Description> */
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/* a typedef for unsigned short */
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/* */
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REDEFINE( UShort );
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/* <Type> FT_Int */
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/* */
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/* <Description> */
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/* a typedef for the int type */
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/* */
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REDEFINE( Int );
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/* <Type> FT_UInt */
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/* */
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/* <Description> */
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/* a typedef for the unsigned int type */
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/* */
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REDEFINE( UInt );
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/* <Type> T1_Long */
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/* */
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/* <Description> */
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/* a typedef for signed long */
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/* */
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REDEFINE( Long );
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/* <Type> T1_ULong */
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/* */
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/* <Description> */
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/* a typedef for unsigned long */
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/* */
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REDEFINE( ULong );
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/* <Type> T1_F2Dot14 */
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/* */
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/* <Description> */
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/* a signed 2.14 fixed float used for unit vectors */
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/* */
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REDEFINE( F2Dot14 );
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/* <Type> T1_F26Dot6 */
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/* */
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/* <Description> */
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/* a signed 26.6 fixed float used for vectorial pixel coordinates */
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/* */
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REDEFINE( F26Dot6 );
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/* <Type> T1_Fixed */
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/* */
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/* <Description> */
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/* This type is used to store 16.16 fixed float values, like */
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/* scales or matrix coefficients.. */
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/* */
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REDEFINE( Fixed );
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/* <Type> T1_Pos */
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/* */
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/* <Description> */
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/* The type T1_Pos is a 32-bits integer used to store vectorial */
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/* coordinates. Depending on the context, these can represent */
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/* distances in integer font units, or 26.6 fixed float pixel */
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/* coordinates.. */
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/* */
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REDEFINE( Pos );
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/* <Struct> T1_Vector */
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/* */
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/* <Description> */
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/* A simple structure used to store a 2d vector, coordinates */
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/* are of the T1_Pos type. */
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/* */
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/* <Fields> */
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/* x :: horizontal coordinate */
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/* y :: vertical coordinate */
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/* */
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REDEFINE( Vector );
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/* <Struct> T1_UnitVector */
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/* */
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/* <Description> */
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/* A simple structure used to store a 2d vector unit vector. */
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/* uses T1_F2Dot14 types. */
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/* */
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/* <Fields> */
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/* x :: horizontal coordinate */
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/* y :: vertical coordinate */
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/* */
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REDEFINE( UnitVector );
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/* <Struct> T1_Matrix */
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/* */
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/* <Description> */
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/* A simple structure used to store a 2x2 matrix. Coefficients */
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/* are in 16.16 fixed float format. The computation performed */
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/* is : */
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/* { */
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/* x' = x*xx + y*xy */
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/* y' = x*yx + y*yy */
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/* } */
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/* */
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/* <Fields> */
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/* xx :: matrix coefficient */
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/* xy :: matrix coefficient */
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/* yx :: matrix coefficient */
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/* yy :: matrix coefficient */
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/* */
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REDEFINE( Matrix );
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/* <Struct> T1_BBox */
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/* */
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/* <Description> */
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/* A structure used to hold an outline's bounding box, i.e. */
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/* the coordinates of its extrema in the horizontal and vertical */
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/* directions. */
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/* */
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/* <Fields> */
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/* xMin :: the horizontal minimum (left-most) */
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/* yMin :: the vertical minimum (bottom-most) */
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/* xMax :: the horizontal maximum (right-most) */
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/* yMax :: the vertical maximum (top-most) */
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/* */
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REDEFINE( BBox );
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/* <Type> T1_Error */
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/* */
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/* <Description> */
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/* The FreeType error code type. A value of 0 is always */
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/* interpreted as a succesful operation. */
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/* */
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REDEFINE( Error );
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** REQUIRED TYPE1/TYPE2 TABLES DEFINITIONS ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/***********************************************************************/
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/* */
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/* <Struct> T1_FontInfo */
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/* */
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/* <Description> */
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/* The FontInfo dictionary structure. */
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/* */
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/* <Fields> */
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/* version :: */
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/* notice :: */
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/* full_name :: */
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/* family_name :: */
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/* weight :: */
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/* italic_angle :: */
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/* is_fixed_pitch :: */
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/* underline_position :: */
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/* underline_thickness :: */
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/* */
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typedef struct T1_FontInfo_
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{
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T1_String* version;
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T1_String* notice;
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T1_String* full_name;
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T1_String* family_name;
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T1_String* weight;
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T1_Long italic_angle;
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T1_Bool is_fixed_pitch;
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T1_Short underline_position;
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T1_UShort underline_thickness;
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} T1_FontInfo;
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/***********************************************************************/
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/* */
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/* <Struct> T1_Private */
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/* */
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/* <Description> */
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/* The Private dictionary structure. */
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/* */
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/* <Fields> */
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/* unique_id :: the font's unique id */
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/* lenIV :: length of decrypt padding */
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/* */
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/* num_blues :: number of blue values */
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/* num_other_blues :: number of other blue values */
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/* num_family_blues :: number of family blue values */
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/* num_family_other_blues :: number of family other blue values */
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/* */
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/* blue_values :: array of blue values */
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/* other_blues :: array of other blue values */
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/* family_blues :: array of family blue values */
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/* family_other_blues :: array of family other blue values */
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/* */
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/* blue_scale :: */
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/* blue_shift :: */
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/* blue_scale :: */
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/* */
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/* standard_width :: */
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/* standard_height :: */
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/* */
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/* num_snap_widths :: */
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/* num_snap_heights :: */
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/* force_bold :: */
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/* round_stem_up :: */
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/* */
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/* stem_snap_widths :: */
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/* stem_snap_heights :: */
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/* */
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/* language_group :: */
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/* password :: */
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/* */
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/* min_feature :: */
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/* */
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/* */
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typedef struct T1_Private_
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{
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T1_Int unique_id;
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T1_Int lenIV;
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T1_Byte num_blues;
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T1_Byte num_other_blues;
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T1_Byte num_family_blues;
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T1_Byte num_family_other_blues;
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T1_Short blue_values[14];
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T1_Short other_blues[10];
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T1_Short family_blues [14];
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T1_Short family_other_blues[10];
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T1_Fixed blue_scale;
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T1_Int blue_shift;
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T1_Int blue_fuzz;
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T1_UShort standard_width;
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T1_UShort standard_height;
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T1_Byte num_snap_widths;
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T1_Byte num_snap_heights;
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T1_Bool force_bold;
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T1_Bool round_stem_up;
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T1_Short stem_snap_widths [13]; /* reserve one place for the std */
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T1_Short stem_snap_heights[13]; /* reserve one place for the std */
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T1_Long language_group;
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T1_Long password;
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T1_Short min_feature[2];
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} T1_Private;
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/***********************************************************************/
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/* */
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/* <Struct> T1_Private */
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/* */
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/* <Description> */
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/* The Private dictionary structure. */
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/* */
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/* <Fields> */
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/* num_chars :: number of char codes in encoding. Usually 256 */
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/* code_first :: lower char code in encoding */
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/* code_last :: higher char code in encoding */
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/* */
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/* char_code :: array of character codes */
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/* char_index :: array of correpsonding glyph indices */
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/* char_name :: array of correpsonding glyph names */
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/* */
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typedef struct T1_Encoding_
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{
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T1_Int num_chars;
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T1_Int code_first;
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T1_Int code_last;
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T1_Short* char_index;
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T1_String** char_name;
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} T1_Encoding;
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** ORIGINAL TT_FACE CLASS DEFINITION ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
|
||
|
|
/*************************************************************************/
|
||
|
|
/*** ***/
|
||
|
|
/*** ***/
|
||
|
|
/*** This structure/class is defined here because it is common ***/
|
||
|
|
/*** to the following formats : TTF, OpenType-TT and OpenType-CFF ***/
|
||
|
|
/*** ***/
|
||
|
|
/*** Note however that the classes TT_Size, TT_GlyphSlot and ***/
|
||
|
|
/*** TT_CharMap are not shared between font drivers, and are ***/
|
||
|
|
/*** thus defined normally in "drivers/truetype/ttobjs.h" ***/
|
||
|
|
/*** ***/
|
||
|
|
/*** ***/
|
||
|
|
/*************************************************************************/
|
||
|
|
/*************************************************************************/
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct T1_FaceRec_* T1_Face;
|
||
|
|
|
||
|
|
|
||
|
|
/***************************************************/
|
||
|
|
/* */
|
||
|
|
/* T1_Face : */
|
||
|
|
/* */
|
||
|
|
/* Type1 face record.. */
|
||
|
|
/* */
|
||
|
|
|
||
|
|
typedef struct T1_FaceRec_
|
||
|
|
{
|
||
|
|
FT_FaceRec root;
|
||
|
|
|
||
|
|
T1_FontInfo font_info;
|
||
|
|
FT_String* font_name;
|
||
|
|
|
||
|
|
T1_Encoding encoding;
|
||
|
|
|
||
|
|
T1_Byte* subrs_block;
|
||
|
|
T1_Byte* charstrings_block;
|
||
|
|
|
||
|
|
T1_Int num_subrs;
|
||
|
|
T1_Byte** subrs;
|
||
|
|
T1_Int* subrs_len;
|
||
|
|
|
||
|
|
T1_Int num_glyphs;
|
||
|
|
T1_String** glyph_names; /* array of glyph names */
|
||
|
|
T1_Byte** charstrings; /* array of glyph charstrings */
|
||
|
|
T1_Int* charstrings_len;
|
||
|
|
|
||
|
|
T1_Byte paint_type;
|
||
|
|
T1_Byte font_type;
|
||
|
|
T1_Matrix font_matrix;
|
||
|
|
T1_BBox font_bbox;
|
||
|
|
T1_Long unique_id;
|
||
|
|
T1_Long font_id;
|
||
|
|
|
||
|
|
T1_Int stroke_width;
|
||
|
|
T1_Private private_dict;
|
||
|
|
|
||
|
|
} T1_FaceRec;
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* T1TYPES_H */
|