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/***************************************************************************/
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/* */
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/* ttinterp.c */
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/* */
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/* TrueType bytecode interpreter (body). */
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/* */
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/* Copyright 1996-2011 */
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/* by 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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#include <ft2build.h>
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_CALC_H
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#include FT_TRIGONOMETRY_H
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#include FT_SYSTEM_H
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#include "ttinterp.h"
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#include "tterrors.h"
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#ifdef TT_USE_BYTECODE_INTERPRETER
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#define TT_MULFIX FT_MulFix
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#define TT_MULDIV FT_MulDiv
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#define TT_MULDIV_NO_ROUND FT_MulDiv_No_Round
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_ttinterp
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/*************************************************************************/
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/* */
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/* In order to detect infinite loops in the code, we set up a counter */
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/* within the run loop. A single stroke of interpretation is now */
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/* limited to a maximal number of opcodes defined below. */
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/* */
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#define MAX_RUNNABLE_OPCODES 1000000L
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/*************************************************************************/
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/* */
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/* There are two kinds of implementations: */
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/* */
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/* a. static implementation */
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/* */
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/* The current execution context is a static variable, which fields */
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/* are accessed directly by the interpreter during execution. The */
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/* context is named `cur'. */
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/* */
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/* This version is non-reentrant, of course. */
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/* */
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/* b. indirect implementation */
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/* */
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/* The current execution context is passed to _each_ function as its */
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/* first argument, and each field is thus accessed indirectly. */
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/* */
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/* This version is fully re-entrant. */
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/* */
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/* The idea is that an indirect implementation may be slower to execute */
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/* on low-end processors that are used in some systems (like 386s or */
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/* even 486s). */
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/* */
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/* As a consequence, the indirect implementation is now the default, as */
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/* its performance costs can be considered negligible in our context. */
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/* Note, however, that we kept the same source with macros because: */
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/* */
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/* - The code is kept very close in design to the Pascal code used for */
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/* development. */
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/* */
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/* - It's much more readable that way! */
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/* */
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/* - It's still open to experimentation and tuning. */
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/* */
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/*************************************************************************/
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#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */
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#define CUR (*exc) /* see ttobjs.h */
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/*************************************************************************/
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/* */
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/* This macro is used whenever `exec' is unused in a function, to avoid */
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/* stupid warnings from pedantic compilers. */
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/* */
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#define FT_UNUSED_EXEC FT_UNUSED( exc )
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#else /* static implementation */
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#define CUR cur
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#define FT_UNUSED_EXEC int __dummy = __dummy
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static
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TT_ExecContextRec cur; /* static exec. context variable */
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/* apparently, we have a _lot_ of direct indexing when accessing */
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/* the static `cur', which makes the code bigger (due to all the */
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/* four bytes addresses). */
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#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */
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/*************************************************************************/
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/* */
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/* The instruction argument stack. */
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/* */
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#define INS_ARG EXEC_OP_ FT_Long* args /* see ttobjs.h for EXEC_OP_ */
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/*************************************************************************/
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/* */
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/* This macro is used whenever `args' is unused in a function, to avoid */
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/* stupid warnings from pedantic compilers. */
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/* */
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#define FT_UNUSED_ARG FT_UNUSED_EXEC; FT_UNUSED( args )
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/*************************************************************************/
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/* */
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/* The following macros hide the use of EXEC_ARG and EXEC_ARG_ to */
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/* increase readability of the code. */
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/* */
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/*************************************************************************/
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#define SKIP_Code() \
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SkipCode( EXEC_ARG )
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#define GET_ShortIns() \
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GetShortIns( EXEC_ARG )
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#define NORMalize( x, y, v ) \
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Normalize( EXEC_ARG_ x, y, v )
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#define SET_SuperRound( scale, flags ) \
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SetSuperRound( EXEC_ARG_ scale, flags )
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#define ROUND_None( d, c ) \
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Round_None( EXEC_ARG_ d, c )
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#define INS_Goto_CodeRange( range, ip ) \
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Ins_Goto_CodeRange( EXEC_ARG_ range, ip )
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#define CUR_Func_move( z, p, d ) \
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CUR.func_move( EXEC_ARG_ z, p, d )
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#define CUR_Func_move_orig( z, p, d ) \
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CUR.func_move_orig( EXEC_ARG_ z, p, d )
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#define CUR_Func_round( d, c ) \
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CUR.func_round( EXEC_ARG_ d, c )
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#define CUR_Func_read_cvt( index ) \
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CUR.func_read_cvt( EXEC_ARG_ index )
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#define CUR_Func_write_cvt( index, val ) \
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CUR.func_write_cvt( EXEC_ARG_ index, val )
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#define CUR_Func_move_cvt( index, val ) \
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CUR.func_move_cvt( EXEC_ARG_ index, val )
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#define CURRENT_Ratio() \
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Current_Ratio( EXEC_ARG )
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#define CURRENT_Ppem() \
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Current_Ppem( EXEC_ARG )
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#define CUR_Ppem() \
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Cur_PPEM( EXEC_ARG )
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#define INS_SxVTL( a, b, c, d ) \
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Ins_SxVTL( EXEC_ARG_ a, b, c, d )
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#define COMPUTE_Funcs() \
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Compute_Funcs( EXEC_ARG )
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#define COMPUTE_Round( a ) \
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Compute_Round( EXEC_ARG_ a )
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#define COMPUTE_Point_Displacement( a, b, c, d ) \
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Compute_Point_Displacement( EXEC_ARG_ a, b, c, d )
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#define MOVE_Zp2_Point( a, b, c, t ) \
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Move_Zp2_Point( EXEC_ARG_ a, b, c, t )
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#define CUR_Func_project( v1, v2 ) \
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CUR.func_project( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y )
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#define CUR_Func_dualproj( v1, v2 ) \
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CUR.func_dualproj( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y )
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#define CUR_fast_project( v ) \
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CUR.func_project( EXEC_ARG_ (v)->x, (v)->y )
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#define CUR_fast_dualproj( v ) \
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CUR.func_dualproj( EXEC_ARG_ (v)->x, (v)->y )
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/*************************************************************************/
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/* */
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/* Instruction dispatch function, as used by the interpreter. */
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/* */
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typedef void (*TInstruction_Function)( INS_ARG );
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/*************************************************************************/
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/* */
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/* Two simple bounds-checking macros. */
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/* */
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#define BOUNDS( x, n ) ( (FT_UInt)(x) >= (FT_UInt)(n) )
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#define BOUNDSL( x, n ) ( (FT_ULong)(x) >= (FT_ULong)(n) )
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#undef SUCCESS
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#define SUCCESS 0
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#undef FAILURE
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#define FAILURE 1
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#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
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#define GUESS_VECTOR( V ) \
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if ( CUR.face->unpatented_hinting ) \
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{ \
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CUR.GS.V.x = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0x4000 : 0 ); \
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CUR.GS.V.y = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0 : 0x4000 ); \
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}
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#else
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#define GUESS_VECTOR( V )
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#endif
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/*************************************************************************/
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/* */
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/* CODERANGE FUNCTIONS */
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/* */
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Function> */
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/* TT_Goto_CodeRange */
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/* */
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/* <Description> */
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/* Switches to a new code range (updates the code related elements in */
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/* `exec', and `IP'). */
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/* */
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/* <Input> */
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/* range :: The new execution code range. */
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/* */
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/* IP :: The new IP in the new code range. */
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/* */
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/* <InOut> */
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/* exec :: The target execution context. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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FT_LOCAL_DEF( FT_Error )
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TT_Goto_CodeRange( TT_ExecContext exec,
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FT_Int range,
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FT_Long IP )
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{
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TT_CodeRange* coderange;
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FT_ASSERT( range >= 1 && range <= 3 );
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coderange = &exec->codeRangeTable[range - 1];
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FT_ASSERT( coderange->base != NULL );
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/* NOTE: Because the last instruction of a program may be a CALL */
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/* which will return to the first byte *after* the code */
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/* range, we test for IP <= Size instead of IP < Size. */
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/* */
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FT_ASSERT( (FT_ULong)IP <= coderange->size );
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exec->code = coderange->base;
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exec->codeSize = coderange->size;
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exec->IP = IP;
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exec->curRange = range;
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return TT_Err_Ok;
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}
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/*************************************************************************/
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/* */
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/* <Function> */
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/* TT_Set_CodeRange */
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/* */
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/* <Description> */
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/* Sets a code range. */
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/* */
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/* <Input> */
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/* range :: The code range index. */
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/* */
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/* base :: The new code base. */
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/* */
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/* length :: The range size in bytes. */
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/* */
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/* <InOut> */
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/* exec :: The target execution context. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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FT_LOCAL_DEF( FT_Error )
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TT_Set_CodeRange( TT_ExecContext exec,
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FT_Int range,
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void* base,
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FT_Long length )
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{
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FT_ASSERT( range >= 1 && range <= 3 );
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exec->codeRangeTable[range - 1].base = (FT_Byte*)base;
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exec->codeRangeTable[range - 1].size = length;
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return TT_Err_Ok;
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}
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/*************************************************************************/
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/* */
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/* <Function> */
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/* TT_Clear_CodeRange */
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/* */
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/* <Description> */
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/* Clears a code range. */
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/* */
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/* <Input> */
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/* range :: The code range index. */
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/* */
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/* <InOut> */
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/* exec :: The target execution context. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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/* <Note> */
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/* Does not set the Error variable. */
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/* */
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FT_LOCAL_DEF( FT_Error )
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TT_Clear_CodeRange( TT_ExecContext exec,
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FT_Int range )
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{
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FT_ASSERT( range >= 1 && range <= 3 );
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exec->codeRangeTable[range - 1].base = NULL;
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exec->codeRangeTable[range - 1].size = 0;
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return TT_Err_Ok;
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}
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/*************************************************************************/
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/* */
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/* EXECUTION CONTEXT ROUTINES */
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/* */
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377 |
/*************************************************************************/
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378 |
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|
|
379 |
|
|
|
380 |
/*************************************************************************/
|
|
|
381 |
/* */
|
|
|
382 |
/* <Function> */
|
|
|
383 |
/* TT_Done_Context */
|
|
|
384 |
/* */
|
|
|
385 |
/* <Description> */
|
|
|
386 |
/* Destroys a given context. */
|
|
|
387 |
/* */
|
|
|
388 |
/* <Input> */
|
|
|
389 |
/* exec :: A handle to the target execution context. */
|
|
|
390 |
/* */
|
|
|
391 |
/* memory :: A handle to the parent memory object. */
|
|
|
392 |
/* */
|
|
|
393 |
/* <Return> */
|
|
|
394 |
/* FreeType error code. 0 means success. */
|
|
|
395 |
/* */
|
|
|
396 |
/* <Note> */
|
|
|
397 |
/* Only the glyph loader and debugger should call this function. */
|
|
|
398 |
/* */
|
|
|
399 |
FT_LOCAL_DEF( FT_Error )
|
|
|
400 |
TT_Done_Context( TT_ExecContext exec )
|
|
|
401 |
{
|
|
|
402 |
FT_Memory memory = exec->memory;
|
|
|
403 |
|
|
|
404 |
|
|
|
405 |
/* points zone */
|
|
|
406 |
exec->maxPoints = 0;
|
|
|
407 |
exec->maxContours = 0;
|
|
|
408 |
|
|
|
409 |
/* free stack */
|
|
|
410 |
FT_FREE( exec->stack );
|
|
|
411 |
exec->stackSize = 0;
|
|
|
412 |
|
|
|
413 |
/* free call stack */
|
|
|
414 |
FT_FREE( exec->callStack );
|
|
|
415 |
exec->callSize = 0;
|
|
|
416 |
exec->callTop = 0;
|
|
|
417 |
|
|
|
418 |
/* free glyph code range */
|
|
|
419 |
FT_FREE( exec->glyphIns );
|
|
|
420 |
exec->glyphSize = 0;
|
|
|
421 |
|
|
|
422 |
exec->size = NULL;
|
|
|
423 |
exec->face = NULL;
|
|
|
424 |
|
|
|
425 |
FT_FREE( exec );
|
|
|
426 |
|
|
|
427 |
return TT_Err_Ok;
|
|
|
428 |
}
|
|
|
429 |
|
|
|
430 |
|
|
|
431 |
/*************************************************************************/
|
|
|
432 |
/* */
|
|
|
433 |
/* <Function> */
|
|
|
434 |
/* Init_Context */
|
|
|
435 |
/* */
|
|
|
436 |
/* <Description> */
|
|
|
437 |
/* Initializes a context object. */
|
|
|
438 |
/* */
|
|
|
439 |
/* <Input> */
|
|
|
440 |
/* memory :: A handle to the parent memory object. */
|
|
|
441 |
/* */
|
|
|
442 |
/* <InOut> */
|
|
|
443 |
/* exec :: A handle to the target execution context. */
|
|
|
444 |
/* */
|
|
|
445 |
/* <Return> */
|
|
|
446 |
/* FreeType error code. 0 means success. */
|
|
|
447 |
/* */
|
|
|
448 |
static FT_Error
|
|
|
449 |
Init_Context( TT_ExecContext exec,
|
|
|
450 |
FT_Memory memory )
|
|
|
451 |
{
|
|
|
452 |
FT_Error error;
|
|
|
453 |
|
|
|
454 |
|
|
|
455 |
FT_TRACE1(( "Init_Context: new object at 0x%08p\n", exec ));
|
|
|
456 |
|
|
|
457 |
exec->memory = memory;
|
|
|
458 |
exec->callSize = 32;
|
|
|
459 |
|
|
|
460 |
if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) )
|
|
|
461 |
goto Fail_Memory;
|
|
|
462 |
|
|
|
463 |
/* all values in the context are set to 0 already, but this is */
|
|
|
464 |
/* here as a remainder */
|
|
|
465 |
exec->maxPoints = 0;
|
|
|
466 |
exec->maxContours = 0;
|
|
|
467 |
|
|
|
468 |
exec->stackSize = 0;
|
|
|
469 |
exec->glyphSize = 0;
|
|
|
470 |
|
|
|
471 |
exec->stack = NULL;
|
|
|
472 |
exec->glyphIns = NULL;
|
|
|
473 |
|
|
|
474 |
exec->face = NULL;
|
|
|
475 |
exec->size = NULL;
|
|
|
476 |
|
|
|
477 |
return TT_Err_Ok;
|
|
|
478 |
|
|
|
479 |
Fail_Memory:
|
|
|
480 |
FT_ERROR(( "Init_Context: not enough memory for %p\n", exec ));
|
|
|
481 |
TT_Done_Context( exec );
|
|
|
482 |
|
|
|
483 |
return error;
|
|
|
484 |
}
|
|
|
485 |
|
|
|
486 |
|
|
|
487 |
/*************************************************************************/
|
|
|
488 |
/* */
|
|
|
489 |
/* <Function> */
|
|
|
490 |
/* Update_Max */
|
|
|
491 |
/* */
|
|
|
492 |
/* <Description> */
|
|
|
493 |
/* Checks the size of a buffer and reallocates it if necessary. */
|
|
|
494 |
/* */
|
|
|
495 |
/* <Input> */
|
|
|
496 |
/* memory :: A handle to the parent memory object. */
|
|
|
497 |
/* */
|
|
|
498 |
/* multiplier :: The size in bytes of each element in the buffer. */
|
|
|
499 |
/* */
|
|
|
500 |
/* new_max :: The new capacity (size) of the buffer. */
|
|
|
501 |
/* */
|
|
|
502 |
/* <InOut> */
|
|
|
503 |
/* size :: The address of the buffer's current size expressed */
|
|
|
504 |
/* in elements. */
|
|
|
505 |
/* */
|
|
|
506 |
/* buff :: The address of the buffer base pointer. */
|
|
|
507 |
/* */
|
|
|
508 |
/* <Return> */
|
|
|
509 |
/* FreeType error code. 0 means success. */
|
|
|
510 |
/* */
|
|
|
511 |
FT_LOCAL_DEF( FT_Error )
|
|
|
512 |
Update_Max( FT_Memory memory,
|
|
|
513 |
FT_ULong* size,
|
|
|
514 |
FT_Long multiplier,
|
|
|
515 |
void* _pbuff,
|
|
|
516 |
FT_ULong new_max )
|
|
|
517 |
{
|
|
|
518 |
FT_Error error;
|
|
|
519 |
void** pbuff = (void**)_pbuff;
|
|
|
520 |
|
|
|
521 |
|
|
|
522 |
if ( *size < new_max )
|
|
|
523 |
{
|
|
|
524 |
if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) )
|
|
|
525 |
return error;
|
|
|
526 |
*size = new_max;
|
|
|
527 |
}
|
|
|
528 |
|
|
|
529 |
return TT_Err_Ok;
|
|
|
530 |
}
|
|
|
531 |
|
|
|
532 |
|
|
|
533 |
/*************************************************************************/
|
|
|
534 |
/* */
|
|
|
535 |
/* <Function> */
|
|
|
536 |
/* TT_Load_Context */
|
|
|
537 |
/* */
|
|
|
538 |
/* <Description> */
|
|
|
539 |
/* Prepare an execution context for glyph hinting. */
|
|
|
540 |
/* */
|
|
|
541 |
/* <Input> */
|
|
|
542 |
/* face :: A handle to the source face object. */
|
|
|
543 |
/* */
|
|
|
544 |
/* size :: A handle to the source size object. */
|
|
|
545 |
/* */
|
|
|
546 |
/* <InOut> */
|
|
|
547 |
/* exec :: A handle to the target execution context. */
|
|
|
548 |
/* */
|
|
|
549 |
/* <Return> */
|
|
|
550 |
/* FreeType error code. 0 means success. */
|
|
|
551 |
/* */
|
|
|
552 |
/* <Note> */
|
|
|
553 |
/* Only the glyph loader and debugger should call this function. */
|
|
|
554 |
/* */
|
|
|
555 |
FT_LOCAL_DEF( FT_Error )
|
|
|
556 |
TT_Load_Context( TT_ExecContext exec,
|
|
|
557 |
TT_Face face,
|
|
|
558 |
TT_Size size )
|
|
|
559 |
{
|
|
|
560 |
FT_Int i;
|
|
|
561 |
FT_ULong tmp;
|
|
|
562 |
TT_MaxProfile* maxp;
|
|
|
563 |
FT_Error error;
|
|
|
564 |
|
|
|
565 |
|
|
|
566 |
exec->face = face;
|
|
|
567 |
maxp = &face->max_profile;
|
|
|
568 |
exec->size = size;
|
|
|
569 |
|
|
|
570 |
if ( size )
|
|
|
571 |
{
|
|
|
572 |
exec->numFDefs = size->num_function_defs;
|
|
|
573 |
exec->maxFDefs = size->max_function_defs;
|
|
|
574 |
exec->numIDefs = size->num_instruction_defs;
|
|
|
575 |
exec->maxIDefs = size->max_instruction_defs;
|
|
|
576 |
exec->FDefs = size->function_defs;
|
|
|
577 |
exec->IDefs = size->instruction_defs;
|
|
|
578 |
exec->tt_metrics = size->ttmetrics;
|
|
|
579 |
exec->metrics = size->metrics;
|
|
|
580 |
|
|
|
581 |
exec->maxFunc = size->max_func;
|
|
|
582 |
exec->maxIns = size->max_ins;
|
|
|
583 |
|
|
|
584 |
for ( i = 0; i < TT_MAX_CODE_RANGES; i++ )
|
|
|
585 |
exec->codeRangeTable[i] = size->codeRangeTable[i];
|
|
|
586 |
|
|
|
587 |
/* set graphics state */
|
|
|
588 |
exec->GS = size->GS;
|
|
|
589 |
|
|
|
590 |
exec->cvtSize = size->cvt_size;
|
|
|
591 |
exec->cvt = size->cvt;
|
|
|
592 |
|
|
|
593 |
exec->storeSize = size->storage_size;
|
|
|
594 |
exec->storage = size->storage;
|
|
|
595 |
|
|
|
596 |
exec->twilight = size->twilight;
|
|
|
597 |
|
|
|
598 |
/* In case of multi-threading it can happen that the old size object */
|
|
|
599 |
/* no longer exists, thus we must clear all glyph zone references. */
|
|
|
600 |
ft_memset( &exec->zp0, 0, sizeof ( exec->zp0 ) );
|
|
|
601 |
exec->zp1 = exec->zp0;
|
|
|
602 |
exec->zp2 = exec->zp0;
|
|
|
603 |
}
|
|
|
604 |
|
|
|
605 |
/* XXX: We reserve a little more elements on the stack to deal safely */
|
|
|
606 |
/* with broken fonts like arialbs, courbs, timesbs, etc. */
|
|
|
607 |
tmp = exec->stackSize;
|
|
|
608 |
error = Update_Max( exec->memory,
|
|
|
609 |
&tmp,
|
|
|
610 |
sizeof ( FT_F26Dot6 ),
|
|
|
611 |
(void*)&exec->stack,
|
|
|
612 |
maxp->maxStackElements + 32 );
|
|
|
613 |
exec->stackSize = (FT_UInt)tmp;
|
|
|
614 |
if ( error )
|
|
|
615 |
return error;
|
|
|
616 |
|
|
|
617 |
tmp = exec->glyphSize;
|
|
|
618 |
error = Update_Max( exec->memory,
|
|
|
619 |
&tmp,
|
|
|
620 |
sizeof ( FT_Byte ),
|
|
|
621 |
(void*)&exec->glyphIns,
|
|
|
622 |
maxp->maxSizeOfInstructions );
|
|
|
623 |
exec->glyphSize = (FT_UShort)tmp;
|
|
|
624 |
if ( error )
|
|
|
625 |
return error;
|
|
|
626 |
|
|
|
627 |
exec->pts.n_points = 0;
|
|
|
628 |
exec->pts.n_contours = 0;
|
|
|
629 |
|
|
|
630 |
exec->zp1 = exec->pts;
|
|
|
631 |
exec->zp2 = exec->pts;
|
|
|
632 |
exec->zp0 = exec->pts;
|
|
|
633 |
|
|
|
634 |
exec->instruction_trap = FALSE;
|
|
|
635 |
|
|
|
636 |
return TT_Err_Ok;
|
|
|
637 |
}
|
|
|
638 |
|
|
|
639 |
|
|
|
640 |
/*************************************************************************/
|
|
|
641 |
/* */
|
|
|
642 |
/* <Function> */
|
|
|
643 |
/* TT_Save_Context */
|
|
|
644 |
/* */
|
|
|
645 |
/* <Description> */
|
|
|
646 |
/* Saves the code ranges in a `size' object. */
|
|
|
647 |
/* */
|
|
|
648 |
/* <Input> */
|
|
|
649 |
/* exec :: A handle to the source execution context. */
|
|
|
650 |
/* */
|
|
|
651 |
/* <InOut> */
|
|
|
652 |
/* size :: A handle to the target size object. */
|
|
|
653 |
/* */
|
|
|
654 |
/* <Return> */
|
|
|
655 |
/* FreeType error code. 0 means success. */
|
|
|
656 |
/* */
|
|
|
657 |
/* <Note> */
|
|
|
658 |
/* Only the glyph loader and debugger should call this function. */
|
|
|
659 |
/* */
|
|
|
660 |
FT_LOCAL_DEF( FT_Error )
|
|
|
661 |
TT_Save_Context( TT_ExecContext exec,
|
|
|
662 |
TT_Size size )
|
|
|
663 |
{
|
|
|
664 |
FT_Int i;
|
|
|
665 |
|
|
|
666 |
|
|
|
667 |
/* XXXX: Will probably disappear soon with all the code range */
|
|
|
668 |
/* management, which is now rather obsolete. */
|
|
|
669 |
/* */
|
|
|
670 |
size->num_function_defs = exec->numFDefs;
|
|
|
671 |
size->num_instruction_defs = exec->numIDefs;
|
|
|
672 |
|
|
|
673 |
size->max_func = exec->maxFunc;
|
|
|
674 |
size->max_ins = exec->maxIns;
|
|
|
675 |
|
|
|
676 |
for ( i = 0; i < TT_MAX_CODE_RANGES; i++ )
|
|
|
677 |
size->codeRangeTable[i] = exec->codeRangeTable[i];
|
|
|
678 |
|
|
|
679 |
return TT_Err_Ok;
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
|
|
|
683 |
/*************************************************************************/
|
|
|
684 |
/* */
|
|
|
685 |
/* <Function> */
|
|
|
686 |
/* TT_Run_Context */
|
|
|
687 |
/* */
|
|
|
688 |
/* <Description> */
|
|
|
689 |
/* Executes one or more instructions in the execution context. */
|
|
|
690 |
/* */
|
|
|
691 |
/* <Input> */
|
|
|
692 |
/* debug :: A Boolean flag. If set, the function sets some internal */
|
|
|
693 |
/* variables and returns immediately, otherwise TT_RunIns() */
|
|
|
694 |
/* is called. */
|
|
|
695 |
/* */
|
|
|
696 |
/* This is commented out currently. */
|
|
|
697 |
/* */
|
|
|
698 |
/* <Input> */
|
|
|
699 |
/* exec :: A handle to the target execution context. */
|
|
|
700 |
/* */
|
|
|
701 |
/* <Return> */
|
|
|
702 |
/* TrueType error code. 0 means success. */
|
|
|
703 |
/* */
|
|
|
704 |
/* <Note> */
|
|
|
705 |
/* Only the glyph loader and debugger should call this function. */
|
|
|
706 |
/* */
|
|
|
707 |
FT_LOCAL_DEF( FT_Error )
|
|
|
708 |
TT_Run_Context( TT_ExecContext exec,
|
|
|
709 |
FT_Bool debug )
|
|
|
710 |
{
|
|
|
711 |
FT_Error error;
|
|
|
712 |
|
|
|
713 |
|
|
|
714 |
if ( ( error = TT_Goto_CodeRange( exec, tt_coderange_glyph, 0 ) )
|
|
|
715 |
!= TT_Err_Ok )
|
|
|
716 |
return error;
|
|
|
717 |
|
|
|
718 |
exec->zp0 = exec->pts;
|
|
|
719 |
exec->zp1 = exec->pts;
|
|
|
720 |
exec->zp2 = exec->pts;
|
|
|
721 |
|
|
|
722 |
exec->GS.gep0 = 1;
|
|
|
723 |
exec->GS.gep1 = 1;
|
|
|
724 |
exec->GS.gep2 = 1;
|
|
|
725 |
|
|
|
726 |
exec->GS.projVector.x = 0x4000;
|
|
|
727 |
exec->GS.projVector.y = 0x0000;
|
|
|
728 |
|
|
|
729 |
exec->GS.freeVector = exec->GS.projVector;
|
|
|
730 |
exec->GS.dualVector = exec->GS.projVector;
|
|
|
731 |
|
|
|
732 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
733 |
exec->GS.both_x_axis = TRUE;
|
|
|
734 |
#endif
|
|
|
735 |
|
|
|
736 |
exec->GS.round_state = 1;
|
|
|
737 |
exec->GS.loop = 1;
|
|
|
738 |
|
|
|
739 |
/* some glyphs leave something on the stack. so we clean it */
|
|
|
740 |
/* before a new execution. */
|
|
|
741 |
exec->top = 0;
|
|
|
742 |
exec->callTop = 0;
|
|
|
743 |
|
|
|
744 |
#if 1
|
|
|
745 |
FT_UNUSED( debug );
|
|
|
746 |
|
|
|
747 |
return exec->face->interpreter( exec );
|
|
|
748 |
#else
|
|
|
749 |
if ( !debug )
|
|
|
750 |
return TT_RunIns( exec );
|
|
|
751 |
else
|
|
|
752 |
return TT_Err_Ok;
|
|
|
753 |
#endif
|
|
|
754 |
}
|
|
|
755 |
|
|
|
756 |
|
|
|
757 |
/* The default value for `scan_control' is documented as FALSE in the */
|
|
|
758 |
/* TrueType specification. This is confusing since it implies a */
|
|
|
759 |
/* Boolean value. However, this is not the case, thus both the */
|
|
|
760 |
/* default values of our `scan_type' and `scan_control' fields (which */
|
|
|
761 |
/* the documentation's `scan_control' variable is split into) are */
|
|
|
762 |
/* zero. */
|
|
|
763 |
|
|
|
764 |
const TT_GraphicsState tt_default_graphics_state =
|
|
|
765 |
{
|
|
|
766 |
0, 0, 0,
|
|
|
767 |
{ 0x4000, 0 },
|
|
|
768 |
{ 0x4000, 0 },
|
|
|
769 |
{ 0x4000, 0 },
|
|
|
770 |
|
|
|
771 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
772 |
TRUE,
|
|
|
773 |
#endif
|
|
|
774 |
|
|
|
775 |
1, 64, 1,
|
|
|
776 |
TRUE, 68, 0, 0, 9, 3,
|
|
|
777 |
0, FALSE, 0, 1, 1, 1
|
|
|
778 |
};
|
|
|
779 |
|
|
|
780 |
|
|
|
781 |
/* documentation is in ttinterp.h */
|
|
|
782 |
|
|
|
783 |
FT_EXPORT_DEF( TT_ExecContext )
|
|
|
784 |
TT_New_Context( TT_Driver driver )
|
|
|
785 |
{
|
|
|
786 |
TT_ExecContext exec;
|
|
|
787 |
FT_Memory memory;
|
|
|
788 |
|
|
|
789 |
|
|
|
790 |
memory = driver->root.root.memory;
|
|
|
791 |
exec = driver->context;
|
|
|
792 |
|
|
|
793 |
if ( !driver->context )
|
|
|
794 |
{
|
|
|
795 |
FT_Error error;
|
|
|
796 |
|
|
|
797 |
|
|
|
798 |
/* allocate object */
|
|
|
799 |
if ( FT_NEW( exec ) )
|
|
|
800 |
goto Fail;
|
|
|
801 |
|
|
|
802 |
/* initialize it; in case of error this deallocates `exec' too */
|
|
|
803 |
error = Init_Context( exec, memory );
|
|
|
804 |
if ( error )
|
|
|
805 |
goto Fail;
|
|
|
806 |
|
|
|
807 |
/* store it into the driver */
|
|
|
808 |
driver->context = exec;
|
|
|
809 |
}
|
|
|
810 |
|
|
|
811 |
return driver->context;
|
|
|
812 |
|
|
|
813 |
Fail:
|
|
|
814 |
return NULL;
|
|
|
815 |
}
|
|
|
816 |
|
|
|
817 |
|
|
|
818 |
/*************************************************************************/
|
|
|
819 |
/* */
|
|
|
820 |
/* Before an opcode is executed, the interpreter verifies that there are */
|
|
|
821 |
/* enough arguments on the stack, with the help of the `Pop_Push_Count' */
|
|
|
822 |
/* table. */
|
|
|
823 |
/* */
|
|
|
824 |
/* For each opcode, the first column gives the number of arguments that */
|
|
|
825 |
/* are popped from the stack; the second one gives the number of those */
|
|
|
826 |
/* that are pushed in result. */
|
|
|
827 |
/* */
|
|
|
828 |
/* Opcodes which have a varying number of parameters in the data stream */
|
|
|
829 |
/* (NPUSHB, NPUSHW) are handled specially; they have a negative value in */
|
|
|
830 |
/* the `opcode_length' table, and the value in `Pop_Push_Count' is set */
|
|
|
831 |
/* to zero. */
|
|
|
832 |
/* */
|
|
|
833 |
/*************************************************************************/
|
|
|
834 |
|
|
|
835 |
|
|
|
836 |
#undef PACK
|
|
|
837 |
#define PACK( x, y ) ( ( x << 4 ) | y )
|
|
|
838 |
|
|
|
839 |
|
|
|
840 |
static
|
|
|
841 |
const FT_Byte Pop_Push_Count[256] =
|
|
|
842 |
{
|
|
|
843 |
/* opcodes are gathered in groups of 16 */
|
|
|
844 |
/* please keep the spaces as they are */
|
|
|
845 |
|
|
|
846 |
/* SVTCA y */ PACK( 0, 0 ),
|
|
|
847 |
/* SVTCA x */ PACK( 0, 0 ),
|
|
|
848 |
/* SPvTCA y */ PACK( 0, 0 ),
|
|
|
849 |
/* SPvTCA x */ PACK( 0, 0 ),
|
|
|
850 |
/* SFvTCA y */ PACK( 0, 0 ),
|
|
|
851 |
/* SFvTCA x */ PACK( 0, 0 ),
|
|
|
852 |
/* SPvTL // */ PACK( 2, 0 ),
|
|
|
853 |
/* SPvTL + */ PACK( 2, 0 ),
|
|
|
854 |
/* SFvTL // */ PACK( 2, 0 ),
|
|
|
855 |
/* SFvTL + */ PACK( 2, 0 ),
|
|
|
856 |
/* SPvFS */ PACK( 2, 0 ),
|
|
|
857 |
/* SFvFS */ PACK( 2, 0 ),
|
|
|
858 |
/* GPV */ PACK( 0, 2 ),
|
|
|
859 |
/* GFV */ PACK( 0, 2 ),
|
|
|
860 |
/* SFvTPv */ PACK( 0, 0 ),
|
|
|
861 |
/* ISECT */ PACK( 5, 0 ),
|
|
|
862 |
|
|
|
863 |
/* SRP0 */ PACK( 1, 0 ),
|
|
|
864 |
/* SRP1 */ PACK( 1, 0 ),
|
|
|
865 |
/* SRP2 */ PACK( 1, 0 ),
|
|
|
866 |
/* SZP0 */ PACK( 1, 0 ),
|
|
|
867 |
/* SZP1 */ PACK( 1, 0 ),
|
|
|
868 |
/* SZP2 */ PACK( 1, 0 ),
|
|
|
869 |
/* SZPS */ PACK( 1, 0 ),
|
|
|
870 |
/* SLOOP */ PACK( 1, 0 ),
|
|
|
871 |
/* RTG */ PACK( 0, 0 ),
|
|
|
872 |
/* RTHG */ PACK( 0, 0 ),
|
|
|
873 |
/* SMD */ PACK( 1, 0 ),
|
|
|
874 |
/* ELSE */ PACK( 0, 0 ),
|
|
|
875 |
/* JMPR */ PACK( 1, 0 ),
|
|
|
876 |
/* SCvTCi */ PACK( 1, 0 ),
|
|
|
877 |
/* SSwCi */ PACK( 1, 0 ),
|
|
|
878 |
/* SSW */ PACK( 1, 0 ),
|
|
|
879 |
|
|
|
880 |
/* DUP */ PACK( 1, 2 ),
|
|
|
881 |
/* POP */ PACK( 1, 0 ),
|
|
|
882 |
/* CLEAR */ PACK( 0, 0 ),
|
|
|
883 |
/* SWAP */ PACK( 2, 2 ),
|
|
|
884 |
/* DEPTH */ PACK( 0, 1 ),
|
|
|
885 |
/* CINDEX */ PACK( 1, 1 ),
|
|
|
886 |
/* MINDEX */ PACK( 1, 0 ),
|
|
|
887 |
/* AlignPTS */ PACK( 2, 0 ),
|
|
|
888 |
/* INS_$28 */ PACK( 0, 0 ),
|
|
|
889 |
/* UTP */ PACK( 1, 0 ),
|
|
|
890 |
/* LOOPCALL */ PACK( 2, 0 ),
|
|
|
891 |
/* CALL */ PACK( 1, 0 ),
|
|
|
892 |
/* FDEF */ PACK( 1, 0 ),
|
|
|
893 |
/* ENDF */ PACK( 0, 0 ),
|
|
|
894 |
/* MDAP[0] */ PACK( 1, 0 ),
|
|
|
895 |
/* MDAP[1] */ PACK( 1, 0 ),
|
|
|
896 |
|
|
|
897 |
/* IUP[0] */ PACK( 0, 0 ),
|
|
|
898 |
/* IUP[1] */ PACK( 0, 0 ),
|
|
|
899 |
/* SHP[0] */ PACK( 0, 0 ),
|
|
|
900 |
/* SHP[1] */ PACK( 0, 0 ),
|
|
|
901 |
/* SHC[0] */ PACK( 1, 0 ),
|
|
|
902 |
/* SHC[1] */ PACK( 1, 0 ),
|
|
|
903 |
/* SHZ[0] */ PACK( 1, 0 ),
|
|
|
904 |
/* SHZ[1] */ PACK( 1, 0 ),
|
|
|
905 |
/* SHPIX */ PACK( 1, 0 ),
|
|
|
906 |
/* IP */ PACK( 0, 0 ),
|
|
|
907 |
/* MSIRP[0] */ PACK( 2, 0 ),
|
|
|
908 |
/* MSIRP[1] */ PACK( 2, 0 ),
|
|
|
909 |
/* AlignRP */ PACK( 0, 0 ),
|
|
|
910 |
/* RTDG */ PACK( 0, 0 ),
|
|
|
911 |
/* MIAP[0] */ PACK( 2, 0 ),
|
|
|
912 |
/* MIAP[1] */ PACK( 2, 0 ),
|
|
|
913 |
|
|
|
914 |
/* NPushB */ PACK( 0, 0 ),
|
|
|
915 |
/* NPushW */ PACK( 0, 0 ),
|
|
|
916 |
/* WS */ PACK( 2, 0 ),
|
|
|
917 |
/* RS */ PACK( 1, 1 ),
|
|
|
918 |
/* WCvtP */ PACK( 2, 0 ),
|
|
|
919 |
/* RCvt */ PACK( 1, 1 ),
|
|
|
920 |
/* GC[0] */ PACK( 1, 1 ),
|
|
|
921 |
/* GC[1] */ PACK( 1, 1 ),
|
|
|
922 |
/* SCFS */ PACK( 2, 0 ),
|
|
|
923 |
/* MD[0] */ PACK( 2, 1 ),
|
|
|
924 |
/* MD[1] */ PACK( 2, 1 ),
|
|
|
925 |
/* MPPEM */ PACK( 0, 1 ),
|
|
|
926 |
/* MPS */ PACK( 0, 1 ),
|
|
|
927 |
/* FlipON */ PACK( 0, 0 ),
|
|
|
928 |
/* FlipOFF */ PACK( 0, 0 ),
|
|
|
929 |
/* DEBUG */ PACK( 1, 0 ),
|
|
|
930 |
|
|
|
931 |
/* LT */ PACK( 2, 1 ),
|
|
|
932 |
/* LTEQ */ PACK( 2, 1 ),
|
|
|
933 |
/* GT */ PACK( 2, 1 ),
|
|
|
934 |
/* GTEQ */ PACK( 2, 1 ),
|
|
|
935 |
/* EQ */ PACK( 2, 1 ),
|
|
|
936 |
/* NEQ */ PACK( 2, 1 ),
|
|
|
937 |
/* ODD */ PACK( 1, 1 ),
|
|
|
938 |
/* EVEN */ PACK( 1, 1 ),
|
|
|
939 |
/* IF */ PACK( 1, 0 ),
|
|
|
940 |
/* EIF */ PACK( 0, 0 ),
|
|
|
941 |
/* AND */ PACK( 2, 1 ),
|
|
|
942 |
/* OR */ PACK( 2, 1 ),
|
|
|
943 |
/* NOT */ PACK( 1, 1 ),
|
|
|
944 |
/* DeltaP1 */ PACK( 1, 0 ),
|
|
|
945 |
/* SDB */ PACK( 1, 0 ),
|
|
|
946 |
/* SDS */ PACK( 1, 0 ),
|
|
|
947 |
|
|
|
948 |
/* ADD */ PACK( 2, 1 ),
|
|
|
949 |
/* SUB */ PACK( 2, 1 ),
|
|
|
950 |
/* DIV */ PACK( 2, 1 ),
|
|
|
951 |
/* MUL */ PACK( 2, 1 ),
|
|
|
952 |
/* ABS */ PACK( 1, 1 ),
|
|
|
953 |
/* NEG */ PACK( 1, 1 ),
|
|
|
954 |
/* FLOOR */ PACK( 1, 1 ),
|
|
|
955 |
/* CEILING */ PACK( 1, 1 ),
|
|
|
956 |
/* ROUND[0] */ PACK( 1, 1 ),
|
|
|
957 |
/* ROUND[1] */ PACK( 1, 1 ),
|
|
|
958 |
/* ROUND[2] */ PACK( 1, 1 ),
|
|
|
959 |
/* ROUND[3] */ PACK( 1, 1 ),
|
|
|
960 |
/* NROUND[0] */ PACK( 1, 1 ),
|
|
|
961 |
/* NROUND[1] */ PACK( 1, 1 ),
|
|
|
962 |
/* NROUND[2] */ PACK( 1, 1 ),
|
|
|
963 |
/* NROUND[3] */ PACK( 1, 1 ),
|
|
|
964 |
|
|
|
965 |
/* WCvtF */ PACK( 2, 0 ),
|
|
|
966 |
/* DeltaP2 */ PACK( 1, 0 ),
|
|
|
967 |
/* DeltaP3 */ PACK( 1, 0 ),
|
|
|
968 |
/* DeltaCn[0] */ PACK( 1, 0 ),
|
|
|
969 |
/* DeltaCn[1] */ PACK( 1, 0 ),
|
|
|
970 |
/* DeltaCn[2] */ PACK( 1, 0 ),
|
|
|
971 |
/* SROUND */ PACK( 1, 0 ),
|
|
|
972 |
/* S45Round */ PACK( 1, 0 ),
|
|
|
973 |
/* JROT */ PACK( 2, 0 ),
|
|
|
974 |
/* JROF */ PACK( 2, 0 ),
|
|
|
975 |
/* ROFF */ PACK( 0, 0 ),
|
|
|
976 |
/* INS_$7B */ PACK( 0, 0 ),
|
|
|
977 |
/* RUTG */ PACK( 0, 0 ),
|
|
|
978 |
/* RDTG */ PACK( 0, 0 ),
|
|
|
979 |
/* SANGW */ PACK( 1, 0 ),
|
|
|
980 |
/* AA */ PACK( 1, 0 ),
|
|
|
981 |
|
|
|
982 |
/* FlipPT */ PACK( 0, 0 ),
|
|
|
983 |
/* FlipRgON */ PACK( 2, 0 ),
|
|
|
984 |
/* FlipRgOFF */ PACK( 2, 0 ),
|
|
|
985 |
/* INS_$83 */ PACK( 0, 0 ),
|
|
|
986 |
/* INS_$84 */ PACK( 0, 0 ),
|
|
|
987 |
/* ScanCTRL */ PACK( 1, 0 ),
|
|
|
988 |
/* SDPVTL[0] */ PACK( 2, 0 ),
|
|
|
989 |
/* SDPVTL[1] */ PACK( 2, 0 ),
|
|
|
990 |
/* GetINFO */ PACK( 1, 1 ),
|
|
|
991 |
/* IDEF */ PACK( 1, 0 ),
|
|
|
992 |
/* ROLL */ PACK( 3, 3 ),
|
|
|
993 |
/* MAX */ PACK( 2, 1 ),
|
|
|
994 |
/* MIN */ PACK( 2, 1 ),
|
|
|
995 |
/* ScanTYPE */ PACK( 1, 0 ),
|
|
|
996 |
/* InstCTRL */ PACK( 2, 0 ),
|
|
|
997 |
/* INS_$8F */ PACK( 0, 0 ),
|
|
|
998 |
|
|
|
999 |
/* INS_$90 */ PACK( 0, 0 ),
|
|
|
1000 |
/* INS_$91 */ PACK( 0, 0 ),
|
|
|
1001 |
/* INS_$92 */ PACK( 0, 0 ),
|
|
|
1002 |
/* INS_$93 */ PACK( 0, 0 ),
|
|
|
1003 |
/* INS_$94 */ PACK( 0, 0 ),
|
|
|
1004 |
/* INS_$95 */ PACK( 0, 0 ),
|
|
|
1005 |
/* INS_$96 */ PACK( 0, 0 ),
|
|
|
1006 |
/* INS_$97 */ PACK( 0, 0 ),
|
|
|
1007 |
/* INS_$98 */ PACK( 0, 0 ),
|
|
|
1008 |
/* INS_$99 */ PACK( 0, 0 ),
|
|
|
1009 |
/* INS_$9A */ PACK( 0, 0 ),
|
|
|
1010 |
/* INS_$9B */ PACK( 0, 0 ),
|
|
|
1011 |
/* INS_$9C */ PACK( 0, 0 ),
|
|
|
1012 |
/* INS_$9D */ PACK( 0, 0 ),
|
|
|
1013 |
/* INS_$9E */ PACK( 0, 0 ),
|
|
|
1014 |
/* INS_$9F */ PACK( 0, 0 ),
|
|
|
1015 |
|
|
|
1016 |
/* INS_$A0 */ PACK( 0, 0 ),
|
|
|
1017 |
/* INS_$A1 */ PACK( 0, 0 ),
|
|
|
1018 |
/* INS_$A2 */ PACK( 0, 0 ),
|
|
|
1019 |
/* INS_$A3 */ PACK( 0, 0 ),
|
|
|
1020 |
/* INS_$A4 */ PACK( 0, 0 ),
|
|
|
1021 |
/* INS_$A5 */ PACK( 0, 0 ),
|
|
|
1022 |
/* INS_$A6 */ PACK( 0, 0 ),
|
|
|
1023 |
/* INS_$A7 */ PACK( 0, 0 ),
|
|
|
1024 |
/* INS_$A8 */ PACK( 0, 0 ),
|
|
|
1025 |
/* INS_$A9 */ PACK( 0, 0 ),
|
|
|
1026 |
/* INS_$AA */ PACK( 0, 0 ),
|
|
|
1027 |
/* INS_$AB */ PACK( 0, 0 ),
|
|
|
1028 |
/* INS_$AC */ PACK( 0, 0 ),
|
|
|
1029 |
/* INS_$AD */ PACK( 0, 0 ),
|
|
|
1030 |
/* INS_$AE */ PACK( 0, 0 ),
|
|
|
1031 |
/* INS_$AF */ PACK( 0, 0 ),
|
|
|
1032 |
|
|
|
1033 |
/* PushB[0] */ PACK( 0, 1 ),
|
|
|
1034 |
/* PushB[1] */ PACK( 0, 2 ),
|
|
|
1035 |
/* PushB[2] */ PACK( 0, 3 ),
|
|
|
1036 |
/* PushB[3] */ PACK( 0, 4 ),
|
|
|
1037 |
/* PushB[4] */ PACK( 0, 5 ),
|
|
|
1038 |
/* PushB[5] */ PACK( 0, 6 ),
|
|
|
1039 |
/* PushB[6] */ PACK( 0, 7 ),
|
|
|
1040 |
/* PushB[7] */ PACK( 0, 8 ),
|
|
|
1041 |
/* PushW[0] */ PACK( 0, 1 ),
|
|
|
1042 |
/* PushW[1] */ PACK( 0, 2 ),
|
|
|
1043 |
/* PushW[2] */ PACK( 0, 3 ),
|
|
|
1044 |
/* PushW[3] */ PACK( 0, 4 ),
|
|
|
1045 |
/* PushW[4] */ PACK( 0, 5 ),
|
|
|
1046 |
/* PushW[5] */ PACK( 0, 6 ),
|
|
|
1047 |
/* PushW[6] */ PACK( 0, 7 ),
|
|
|
1048 |
/* PushW[7] */ PACK( 0, 8 ),
|
|
|
1049 |
|
|
|
1050 |
/* MDRP[00] */ PACK( 1, 0 ),
|
|
|
1051 |
/* MDRP[01] */ PACK( 1, 0 ),
|
|
|
1052 |
/* MDRP[02] */ PACK( 1, 0 ),
|
|
|
1053 |
/* MDRP[03] */ PACK( 1, 0 ),
|
|
|
1054 |
/* MDRP[04] */ PACK( 1, 0 ),
|
|
|
1055 |
/* MDRP[05] */ PACK( 1, 0 ),
|
|
|
1056 |
/* MDRP[06] */ PACK( 1, 0 ),
|
|
|
1057 |
/* MDRP[07] */ PACK( 1, 0 ),
|
|
|
1058 |
/* MDRP[08] */ PACK( 1, 0 ),
|
|
|
1059 |
/* MDRP[09] */ PACK( 1, 0 ),
|
|
|
1060 |
/* MDRP[10] */ PACK( 1, 0 ),
|
|
|
1061 |
/* MDRP[11] */ PACK( 1, 0 ),
|
|
|
1062 |
/* MDRP[12] */ PACK( 1, 0 ),
|
|
|
1063 |
/* MDRP[13] */ PACK( 1, 0 ),
|
|
|
1064 |
/* MDRP[14] */ PACK( 1, 0 ),
|
|
|
1065 |
/* MDRP[15] */ PACK( 1, 0 ),
|
|
|
1066 |
|
|
|
1067 |
/* MDRP[16] */ PACK( 1, 0 ),
|
|
|
1068 |
/* MDRP[17] */ PACK( 1, 0 ),
|
|
|
1069 |
/* MDRP[18] */ PACK( 1, 0 ),
|
|
|
1070 |
/* MDRP[19] */ PACK( 1, 0 ),
|
|
|
1071 |
/* MDRP[20] */ PACK( 1, 0 ),
|
|
|
1072 |
/* MDRP[21] */ PACK( 1, 0 ),
|
|
|
1073 |
/* MDRP[22] */ PACK( 1, 0 ),
|
|
|
1074 |
/* MDRP[23] */ PACK( 1, 0 ),
|
|
|
1075 |
/* MDRP[24] */ PACK( 1, 0 ),
|
|
|
1076 |
/* MDRP[25] */ PACK( 1, 0 ),
|
|
|
1077 |
/* MDRP[26] */ PACK( 1, 0 ),
|
|
|
1078 |
/* MDRP[27] */ PACK( 1, 0 ),
|
|
|
1079 |
/* MDRP[28] */ PACK( 1, 0 ),
|
|
|
1080 |
/* MDRP[29] */ PACK( 1, 0 ),
|
|
|
1081 |
/* MDRP[30] */ PACK( 1, 0 ),
|
|
|
1082 |
/* MDRP[31] */ PACK( 1, 0 ),
|
|
|
1083 |
|
|
|
1084 |
/* MIRP[00] */ PACK( 2, 0 ),
|
|
|
1085 |
/* MIRP[01] */ PACK( 2, 0 ),
|
|
|
1086 |
/* MIRP[02] */ PACK( 2, 0 ),
|
|
|
1087 |
/* MIRP[03] */ PACK( 2, 0 ),
|
|
|
1088 |
/* MIRP[04] */ PACK( 2, 0 ),
|
|
|
1089 |
/* MIRP[05] */ PACK( 2, 0 ),
|
|
|
1090 |
/* MIRP[06] */ PACK( 2, 0 ),
|
|
|
1091 |
/* MIRP[07] */ PACK( 2, 0 ),
|
|
|
1092 |
/* MIRP[08] */ PACK( 2, 0 ),
|
|
|
1093 |
/* MIRP[09] */ PACK( 2, 0 ),
|
|
|
1094 |
/* MIRP[10] */ PACK( 2, 0 ),
|
|
|
1095 |
/* MIRP[11] */ PACK( 2, 0 ),
|
|
|
1096 |
/* MIRP[12] */ PACK( 2, 0 ),
|
|
|
1097 |
/* MIRP[13] */ PACK( 2, 0 ),
|
|
|
1098 |
/* MIRP[14] */ PACK( 2, 0 ),
|
|
|
1099 |
/* MIRP[15] */ PACK( 2, 0 ),
|
|
|
1100 |
|
|
|
1101 |
/* MIRP[16] */ PACK( 2, 0 ),
|
|
|
1102 |
/* MIRP[17] */ PACK( 2, 0 ),
|
|
|
1103 |
/* MIRP[18] */ PACK( 2, 0 ),
|
|
|
1104 |
/* MIRP[19] */ PACK( 2, 0 ),
|
|
|
1105 |
/* MIRP[20] */ PACK( 2, 0 ),
|
|
|
1106 |
/* MIRP[21] */ PACK( 2, 0 ),
|
|
|
1107 |
/* MIRP[22] */ PACK( 2, 0 ),
|
|
|
1108 |
/* MIRP[23] */ PACK( 2, 0 ),
|
|
|
1109 |
/* MIRP[24] */ PACK( 2, 0 ),
|
|
|
1110 |
/* MIRP[25] */ PACK( 2, 0 ),
|
|
|
1111 |
/* MIRP[26] */ PACK( 2, 0 ),
|
|
|
1112 |
/* MIRP[27] */ PACK( 2, 0 ),
|
|
|
1113 |
/* MIRP[28] */ PACK( 2, 0 ),
|
|
|
1114 |
/* MIRP[29] */ PACK( 2, 0 ),
|
|
|
1115 |
/* MIRP[30] */ PACK( 2, 0 ),
|
|
|
1116 |
/* MIRP[31] */ PACK( 2, 0 )
|
|
|
1117 |
};
|
|
|
1118 |
|
|
|
1119 |
|
|
|
1120 |
#ifdef FT_DEBUG_LEVEL_TRACE
|
|
|
1121 |
|
|
|
1122 |
static
|
|
|
1123 |
const char* const opcode_name[256] =
|
|
|
1124 |
{
|
|
|
1125 |
"SVTCA y",
|
|
|
1126 |
"SVTCA x",
|
|
|
1127 |
"SPvTCA y",
|
|
|
1128 |
"SPvTCA x",
|
|
|
1129 |
"SFvTCA y",
|
|
|
1130 |
"SFvTCA x",
|
|
|
1131 |
"SPvTL ||",
|
|
|
1132 |
"SPvTL +",
|
|
|
1133 |
"SFvTL ||",
|
|
|
1134 |
"SFvTL +",
|
|
|
1135 |
"SPvFS",
|
|
|
1136 |
"SFvFS",
|
|
|
1137 |
"GPV",
|
|
|
1138 |
"GFV",
|
|
|
1139 |
"SFvTPv",
|
|
|
1140 |
"ISECT",
|
|
|
1141 |
|
|
|
1142 |
"SRP0",
|
|
|
1143 |
"SRP1",
|
|
|
1144 |
"SRP2",
|
|
|
1145 |
"SZP0",
|
|
|
1146 |
"SZP1",
|
|
|
1147 |
"SZP2",
|
|
|
1148 |
"SZPS",
|
|
|
1149 |
"SLOOP",
|
|
|
1150 |
"RTG",
|
|
|
1151 |
"RTHG",
|
|
|
1152 |
"SMD",
|
|
|
1153 |
"ELSE",
|
|
|
1154 |
"JMPR",
|
|
|
1155 |
"SCvTCi",
|
|
|
1156 |
"SSwCi",
|
|
|
1157 |
"SSW",
|
|
|
1158 |
|
|
|
1159 |
"DUP",
|
|
|
1160 |
"POP",
|
|
|
1161 |
"CLEAR",
|
|
|
1162 |
"SWAP",
|
|
|
1163 |
"DEPTH",
|
|
|
1164 |
"CINDEX",
|
|
|
1165 |
"MINDEX",
|
|
|
1166 |
"AlignPTS",
|
|
|
1167 |
"INS_$28",
|
|
|
1168 |
"UTP",
|
|
|
1169 |
"LOOPCALL",
|
|
|
1170 |
"CALL",
|
|
|
1171 |
"FDEF",
|
|
|
1172 |
"ENDF",
|
|
|
1173 |
"MDAP[0]",
|
|
|
1174 |
"MDAP[1]",
|
|
|
1175 |
|
|
|
1176 |
"IUP[0]",
|
|
|
1177 |
"IUP[1]",
|
|
|
1178 |
"SHP[0]",
|
|
|
1179 |
"SHP[1]",
|
|
|
1180 |
"SHC[0]",
|
|
|
1181 |
"SHC[1]",
|
|
|
1182 |
"SHZ[0]",
|
|
|
1183 |
"SHZ[1]",
|
|
|
1184 |
"SHPIX",
|
|
|
1185 |
"IP",
|
|
|
1186 |
"MSIRP[0]",
|
|
|
1187 |
"MSIRP[1]",
|
|
|
1188 |
"AlignRP",
|
|
|
1189 |
"RTDG",
|
|
|
1190 |
"MIAP[0]",
|
|
|
1191 |
"MIAP[1]",
|
|
|
1192 |
|
|
|
1193 |
"NPushB",
|
|
|
1194 |
"NPushW",
|
|
|
1195 |
"WS",
|
|
|
1196 |
"RS",
|
|
|
1197 |
"WCvtP",
|
|
|
1198 |
"RCvt",
|
|
|
1199 |
"GC[0]",
|
|
|
1200 |
"GC[1]",
|
|
|
1201 |
"SCFS",
|
|
|
1202 |
"MD[0]",
|
|
|
1203 |
"MD[1]",
|
|
|
1204 |
"MPPEM",
|
|
|
1205 |
"MPS",
|
|
|
1206 |
"FlipON",
|
|
|
1207 |
"FlipOFF",
|
|
|
1208 |
"DEBUG",
|
|
|
1209 |
|
|
|
1210 |
"LT",
|
|
|
1211 |
"LTEQ",
|
|
|
1212 |
"GT",
|
|
|
1213 |
"GTEQ",
|
|
|
1214 |
"EQ",
|
|
|
1215 |
"NEQ",
|
|
|
1216 |
"ODD",
|
|
|
1217 |
"EVEN",
|
|
|
1218 |
"IF",
|
|
|
1219 |
"EIF",
|
|
|
1220 |
"AND",
|
|
|
1221 |
"OR",
|
|
|
1222 |
"NOT",
|
|
|
1223 |
"DeltaP1",
|
|
|
1224 |
"SDB",
|
|
|
1225 |
"SDS",
|
|
|
1226 |
|
|
|
1227 |
"ADD",
|
|
|
1228 |
"SUB",
|
|
|
1229 |
"DIV",
|
|
|
1230 |
"MUL",
|
|
|
1231 |
"ABS",
|
|
|
1232 |
"NEG",
|
|
|
1233 |
"FLOOR",
|
|
|
1234 |
"CEILING",
|
|
|
1235 |
"ROUND[0]",
|
|
|
1236 |
"ROUND[1]",
|
|
|
1237 |
"ROUND[2]",
|
|
|
1238 |
"ROUND[3]",
|
|
|
1239 |
"NROUND[0]",
|
|
|
1240 |
"NROUND[1]",
|
|
|
1241 |
"NROUND[2]",
|
|
|
1242 |
"NROUND[3]",
|
|
|
1243 |
|
|
|
1244 |
"WCvtF",
|
|
|
1245 |
"DeltaP2",
|
|
|
1246 |
"DeltaP3",
|
|
|
1247 |
"DeltaCn[0]",
|
|
|
1248 |
"DeltaCn[1]",
|
|
|
1249 |
"DeltaCn[2]",
|
|
|
1250 |
"SROUND",
|
|
|
1251 |
"S45Round",
|
|
|
1252 |
"JROT",
|
|
|
1253 |
"JROF",
|
|
|
1254 |
"ROFF",
|
|
|
1255 |
"INS_$7B",
|
|
|
1256 |
"RUTG",
|
|
|
1257 |
"RDTG",
|
|
|
1258 |
"SANGW",
|
|
|
1259 |
"AA",
|
|
|
1260 |
|
|
|
1261 |
"FlipPT",
|
|
|
1262 |
"FlipRgON",
|
|
|
1263 |
"FlipRgOFF",
|
|
|
1264 |
"INS_$83",
|
|
|
1265 |
"INS_$84",
|
|
|
1266 |
"ScanCTRL",
|
|
|
1267 |
"SDVPTL[0]",
|
|
|
1268 |
"SDVPTL[1]",
|
|
|
1269 |
"GetINFO",
|
|
|
1270 |
"IDEF",
|
|
|
1271 |
"ROLL",
|
|
|
1272 |
"MAX",
|
|
|
1273 |
"MIN",
|
|
|
1274 |
"ScanTYPE",
|
|
|
1275 |
"InstCTRL",
|
|
|
1276 |
"INS_$8F",
|
|
|
1277 |
|
|
|
1278 |
"INS_$90",
|
|
|
1279 |
"INS_$91",
|
|
|
1280 |
"INS_$92",
|
|
|
1281 |
"INS_$93",
|
|
|
1282 |
"INS_$94",
|
|
|
1283 |
"INS_$95",
|
|
|
1284 |
"INS_$96",
|
|
|
1285 |
"INS_$97",
|
|
|
1286 |
"INS_$98",
|
|
|
1287 |
"INS_$99",
|
|
|
1288 |
"INS_$9A",
|
|
|
1289 |
"INS_$9B",
|
|
|
1290 |
"INS_$9C",
|
|
|
1291 |
"INS_$9D",
|
|
|
1292 |
"INS_$9E",
|
|
|
1293 |
"INS_$9F",
|
|
|
1294 |
|
|
|
1295 |
"INS_$A0",
|
|
|
1296 |
"INS_$A1",
|
|
|
1297 |
"INS_$A2",
|
|
|
1298 |
"INS_$A3",
|
|
|
1299 |
"INS_$A4",
|
|
|
1300 |
"INS_$A5",
|
|
|
1301 |
"INS_$A6",
|
|
|
1302 |
"INS_$A7",
|
|
|
1303 |
"INS_$A8",
|
|
|
1304 |
"INS_$A9",
|
|
|
1305 |
"INS_$AA",
|
|
|
1306 |
"INS_$AB",
|
|
|
1307 |
"INS_$AC",
|
|
|
1308 |
"INS_$AD",
|
|
|
1309 |
"INS_$AE",
|
|
|
1310 |
"INS_$AF",
|
|
|
1311 |
|
|
|
1312 |
"PushB[0]",
|
|
|
1313 |
"PushB[1]",
|
|
|
1314 |
"PushB[2]",
|
|
|
1315 |
"PushB[3]",
|
|
|
1316 |
"PushB[4]",
|
|
|
1317 |
"PushB[5]",
|
|
|
1318 |
"PushB[6]",
|
|
|
1319 |
"PushB[7]",
|
|
|
1320 |
"PushW[0]",
|
|
|
1321 |
"PushW[1]",
|
|
|
1322 |
"PushW[2]",
|
|
|
1323 |
"PushW[3]",
|
|
|
1324 |
"PushW[4]",
|
|
|
1325 |
"PushW[5]",
|
|
|
1326 |
"PushW[6]",
|
|
|
1327 |
"PushW[7]",
|
|
|
1328 |
|
|
|
1329 |
"MDRP[00]",
|
|
|
1330 |
"MDRP[01]",
|
|
|
1331 |
"MDRP[02]",
|
|
|
1332 |
"MDRP[03]",
|
|
|
1333 |
"MDRP[04]",
|
|
|
1334 |
"MDRP[05]",
|
|
|
1335 |
"MDRP[06]",
|
|
|
1336 |
"MDRP[07]",
|
|
|
1337 |
"MDRP[08]",
|
|
|
1338 |
"MDRP[09]",
|
|
|
1339 |
"MDRP[10]",
|
|
|
1340 |
"MDRP[11]",
|
|
|
1341 |
"MDRP[12]",
|
|
|
1342 |
"MDRP[13]",
|
|
|
1343 |
"MDRP[14]",
|
|
|
1344 |
"MDRP[15]",
|
|
|
1345 |
|
|
|
1346 |
"MDRP[16]",
|
|
|
1347 |
"MDRP[17]",
|
|
|
1348 |
"MDRP[18]",
|
|
|
1349 |
"MDRP[19]",
|
|
|
1350 |
"MDRP[20]",
|
|
|
1351 |
"MDRP[21]",
|
|
|
1352 |
"MDRP[22]",
|
|
|
1353 |
"MDRP[23]",
|
|
|
1354 |
"MDRP[24]",
|
|
|
1355 |
"MDRP[25]",
|
|
|
1356 |
"MDRP[26]",
|
|
|
1357 |
"MDRP[27]",
|
|
|
1358 |
"MDRP[28]",
|
|
|
1359 |
"MDRP[29]",
|
|
|
1360 |
"MDRP[30]",
|
|
|
1361 |
"MDRP[31]",
|
|
|
1362 |
|
|
|
1363 |
"MIRP[00]",
|
|
|
1364 |
"MIRP[01]",
|
|
|
1365 |
"MIRP[02]",
|
|
|
1366 |
"MIRP[03]",
|
|
|
1367 |
"MIRP[04]",
|
|
|
1368 |
"MIRP[05]",
|
|
|
1369 |
"MIRP[06]",
|
|
|
1370 |
"MIRP[07]",
|
|
|
1371 |
"MIRP[08]",
|
|
|
1372 |
"MIRP[09]",
|
|
|
1373 |
"MIRP[10]",
|
|
|
1374 |
"MIRP[11]",
|
|
|
1375 |
"MIRP[12]",
|
|
|
1376 |
"MIRP[13]",
|
|
|
1377 |
"MIRP[14]",
|
|
|
1378 |
"MIRP[15]",
|
|
|
1379 |
|
|
|
1380 |
"MIRP[16]",
|
|
|
1381 |
"MIRP[17]",
|
|
|
1382 |
"MIRP[18]",
|
|
|
1383 |
"MIRP[19]",
|
|
|
1384 |
"MIRP[20]",
|
|
|
1385 |
"MIRP[21]",
|
|
|
1386 |
"MIRP[22]",
|
|
|
1387 |
"MIRP[23]",
|
|
|
1388 |
"MIRP[24]",
|
|
|
1389 |
"MIRP[25]",
|
|
|
1390 |
"MIRP[26]",
|
|
|
1391 |
"MIRP[27]",
|
|
|
1392 |
"MIRP[28]",
|
|
|
1393 |
"MIRP[29]",
|
|
|
1394 |
"MIRP[30]",
|
|
|
1395 |
"MIRP[31]"
|
|
|
1396 |
};
|
|
|
1397 |
|
|
|
1398 |
#endif /* FT_DEBUG_LEVEL_TRACE */
|
|
|
1399 |
|
|
|
1400 |
|
|
|
1401 |
static
|
|
|
1402 |
const FT_Char opcode_length[256] =
|
|
|
1403 |
{
|
|
|
1404 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1405 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1406 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1407 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1408 |
|
|
|
1409 |
-1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1410 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1411 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1412 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1413 |
|
|
|
1414 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1415 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1416 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1417 |
2, 3, 4, 5, 6, 7, 8, 9, 3, 5, 7, 9, 11,13,15,17,
|
|
|
1418 |
|
|
|
1419 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1420 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1421 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
|
1422 |
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
|
|
|
1423 |
};
|
|
|
1424 |
|
|
|
1425 |
#undef PACK
|
|
|
1426 |
|
|
|
1427 |
#if 1
|
|
|
1428 |
|
|
|
1429 |
static FT_Int32
|
|
|
1430 |
TT_MulFix14( FT_Int32 a,
|
|
|
1431 |
FT_Int b )
|
|
|
1432 |
{
|
|
|
1433 |
FT_Int32 sign;
|
|
|
1434 |
FT_UInt32 ah, al, mid, lo, hi;
|
|
|
1435 |
|
|
|
1436 |
|
|
|
1437 |
sign = a ^ b;
|
|
|
1438 |
|
|
|
1439 |
if ( a < 0 )
|
|
|
1440 |
a = -a;
|
|
|
1441 |
if ( b < 0 )
|
|
|
1442 |
b = -b;
|
|
|
1443 |
|
|
|
1444 |
ah = (FT_UInt32)( ( a >> 16 ) & 0xFFFFU );
|
|
|
1445 |
al = (FT_UInt32)( a & 0xFFFFU );
|
|
|
1446 |
|
|
|
1447 |
lo = al * b;
|
|
|
1448 |
mid = ah * b;
|
|
|
1449 |
hi = mid >> 16;
|
|
|
1450 |
mid = ( mid << 16 ) + ( 1 << 13 ); /* rounding */
|
|
|
1451 |
lo += mid;
|
|
|
1452 |
if ( lo < mid )
|
|
|
1453 |
hi += 1;
|
|
|
1454 |
|
|
|
1455 |
mid = ( lo >> 14 ) | ( hi << 18 );
|
|
|
1456 |
|
|
|
1457 |
return sign >= 0 ? (FT_Int32)mid : -(FT_Int32)mid;
|
|
|
1458 |
}
|
|
|
1459 |
|
|
|
1460 |
#else
|
|
|
1461 |
|
|
|
1462 |
/* compute (a*b)/2^14 with maximal accuracy and rounding */
|
|
|
1463 |
static FT_Int32
|
|
|
1464 |
TT_MulFix14( FT_Int32 a,
|
|
|
1465 |
FT_Int b )
|
|
|
1466 |
{
|
|
|
1467 |
FT_Int32 m, s, hi;
|
|
|
1468 |
FT_UInt32 l, lo;
|
|
|
1469 |
|
|
|
1470 |
|
|
|
1471 |
/* compute ax*bx as 64-bit value */
|
|
|
1472 |
l = (FT_UInt32)( ( a & 0xFFFFU ) * b );
|
|
|
1473 |
m = ( a >> 16 ) * b;
|
|
|
1474 |
|
|
|
1475 |
lo = l + (FT_UInt32)( m << 16 );
|
|
|
1476 |
hi = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo < l );
|
|
|
1477 |
|
|
|
1478 |
/* divide the result by 2^14 with rounding */
|
|
|
1479 |
s = hi >> 31;
|
|
|
1480 |
l = lo + (FT_UInt32)s;
|
|
|
1481 |
hi += s + ( l < lo );
|
|
|
1482 |
lo = l;
|
|
|
1483 |
|
|
|
1484 |
l = lo + 0x2000U;
|
|
|
1485 |
hi += l < lo;
|
|
|
1486 |
|
|
|
1487 |
return ( hi << 18 ) | ( l >> 14 );
|
|
|
1488 |
}
|
|
|
1489 |
#endif
|
|
|
1490 |
|
|
|
1491 |
|
|
|
1492 |
/* compute (ax*bx+ay*by)/2^14 with maximal accuracy and rounding */
|
|
|
1493 |
static FT_Int32
|
|
|
1494 |
TT_DotFix14( FT_Int32 ax,
|
|
|
1495 |
FT_Int32 ay,
|
|
|
1496 |
FT_Int bx,
|
|
|
1497 |
FT_Int by )
|
|
|
1498 |
{
|
|
|
1499 |
FT_Int32 m, s, hi1, hi2, hi;
|
|
|
1500 |
FT_UInt32 l, lo1, lo2, lo;
|
|
|
1501 |
|
|
|
1502 |
|
|
|
1503 |
/* compute ax*bx as 64-bit value */
|
|
|
1504 |
l = (FT_UInt32)( ( ax & 0xFFFFU ) * bx );
|
|
|
1505 |
m = ( ax >> 16 ) * bx;
|
|
|
1506 |
|
|
|
1507 |
lo1 = l + (FT_UInt32)( m << 16 );
|
|
|
1508 |
hi1 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo1 < l );
|
|
|
1509 |
|
|
|
1510 |
/* compute ay*by as 64-bit value */
|
|
|
1511 |
l = (FT_UInt32)( ( ay & 0xFFFFU ) * by );
|
|
|
1512 |
m = ( ay >> 16 ) * by;
|
|
|
1513 |
|
|
|
1514 |
lo2 = l + (FT_UInt32)( m << 16 );
|
|
|
1515 |
hi2 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo2 < l );
|
|
|
1516 |
|
|
|
1517 |
/* add them */
|
|
|
1518 |
lo = lo1 + lo2;
|
|
|
1519 |
hi = hi1 + hi2 + ( lo < lo1 );
|
|
|
1520 |
|
|
|
1521 |
/* divide the result by 2^14 with rounding */
|
|
|
1522 |
s = hi >> 31;
|
|
|
1523 |
l = lo + (FT_UInt32)s;
|
|
|
1524 |
hi += s + ( l < lo );
|
|
|
1525 |
lo = l;
|
|
|
1526 |
|
|
|
1527 |
l = lo + 0x2000U;
|
|
|
1528 |
hi += ( l < lo );
|
|
|
1529 |
|
|
|
1530 |
return ( hi << 18 ) | ( l >> 14 );
|
|
|
1531 |
}
|
|
|
1532 |
|
|
|
1533 |
|
|
|
1534 |
/* return length of given vector */
|
|
|
1535 |
|
|
|
1536 |
#if 0
|
|
|
1537 |
|
|
|
1538 |
static FT_Int32
|
|
|
1539 |
TT_VecLen( FT_Int32 x,
|
|
|
1540 |
FT_Int32 y )
|
|
|
1541 |
{
|
|
|
1542 |
FT_Int32 m, hi1, hi2, hi;
|
|
|
1543 |
FT_UInt32 l, lo1, lo2, lo;
|
|
|
1544 |
|
|
|
1545 |
|
|
|
1546 |
/* compute x*x as 64-bit value */
|
|
|
1547 |
lo = (FT_UInt32)( x & 0xFFFFU );
|
|
|
1548 |
hi = x >> 16;
|
|
|
1549 |
|
|
|
1550 |
l = lo * lo;
|
|
|
1551 |
m = hi * lo;
|
|
|
1552 |
hi = hi * hi;
|
|
|
1553 |
|
|
|
1554 |
lo1 = l + (FT_UInt32)( m << 17 );
|
|
|
1555 |
hi1 = hi + ( m >> 15 ) + ( lo1 < l );
|
|
|
1556 |
|
|
|
1557 |
/* compute y*y as 64-bit value */
|
|
|
1558 |
lo = (FT_UInt32)( y & 0xFFFFU );
|
|
|
1559 |
hi = y >> 16;
|
|
|
1560 |
|
|
|
1561 |
l = lo * lo;
|
|
|
1562 |
m = hi * lo;
|
|
|
1563 |
hi = hi * hi;
|
|
|
1564 |
|
|
|
1565 |
lo2 = l + (FT_UInt32)( m << 17 );
|
|
|
1566 |
hi2 = hi + ( m >> 15 ) + ( lo2 < l );
|
|
|
1567 |
|
|
|
1568 |
/* add them to get 'x*x+y*y' as 64-bit value */
|
|
|
1569 |
lo = lo1 + lo2;
|
|
|
1570 |
hi = hi1 + hi2 + ( lo < lo1 );
|
|
|
1571 |
|
|
|
1572 |
/* compute the square root of this value */
|
|
|
1573 |
{
|
|
|
1574 |
FT_UInt32 root, rem, test_div;
|
|
|
1575 |
FT_Int count;
|
|
|
1576 |
|
|
|
1577 |
|
|
|
1578 |
root = 0;
|
|
|
1579 |
|
|
|
1580 |
{
|
|
|
1581 |
rem = 0;
|
|
|
1582 |
count = 32;
|
|
|
1583 |
do
|
|
|
1584 |
{
|
|
|
1585 |
rem = ( rem << 2 ) | ( (FT_UInt32)hi >> 30 );
|
|
|
1586 |
hi = ( hi << 2 ) | ( lo >> 30 );
|
|
|
1587 |
lo <<= 2;
|
|
|
1588 |
root <<= 1;
|
|
|
1589 |
test_div = ( root << 1 ) + 1;
|
|
|
1590 |
|
|
|
1591 |
if ( rem >= test_div )
|
|
|
1592 |
{
|
|
|
1593 |
rem -= test_div;
|
|
|
1594 |
root += 1;
|
|
|
1595 |
}
|
|
|
1596 |
} while ( --count );
|
|
|
1597 |
}
|
|
|
1598 |
|
|
|
1599 |
return (FT_Int32)root;
|
|
|
1600 |
}
|
|
|
1601 |
}
|
|
|
1602 |
|
|
|
1603 |
#else
|
|
|
1604 |
|
|
|
1605 |
/* this version uses FT_Vector_Length which computes the same value */
|
|
|
1606 |
/* much, much faster.. */
|
|
|
1607 |
/* */
|
|
|
1608 |
static FT_F26Dot6
|
|
|
1609 |
TT_VecLen( FT_F26Dot6 X,
|
|
|
1610 |
FT_F26Dot6 Y )
|
|
|
1611 |
{
|
|
|
1612 |
FT_Vector v;
|
|
|
1613 |
|
|
|
1614 |
|
|
|
1615 |
v.x = X;
|
|
|
1616 |
v.y = Y;
|
|
|
1617 |
|
|
|
1618 |
return FT_Vector_Length( &v );
|
|
|
1619 |
}
|
|
|
1620 |
|
|
|
1621 |
#endif
|
|
|
1622 |
|
|
|
1623 |
|
|
|
1624 |
/*************************************************************************/
|
|
|
1625 |
/* */
|
|
|
1626 |
/* <Function> */
|
|
|
1627 |
/* Current_Ratio */
|
|
|
1628 |
/* */
|
|
|
1629 |
/* <Description> */
|
|
|
1630 |
/* Returns the current aspect ratio scaling factor depending on the */
|
|
|
1631 |
/* projection vector's state and device resolutions. */
|
|
|
1632 |
/* */
|
|
|
1633 |
/* <Return> */
|
|
|
1634 |
/* The aspect ratio in 16.16 format, always <= 1.0 . */
|
|
|
1635 |
/* */
|
|
|
1636 |
static FT_Long
|
|
|
1637 |
Current_Ratio( EXEC_OP )
|
|
|
1638 |
{
|
|
|
1639 |
if ( !CUR.tt_metrics.ratio )
|
|
|
1640 |
{
|
|
|
1641 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
1642 |
if ( CUR.face->unpatented_hinting )
|
|
|
1643 |
{
|
|
|
1644 |
if ( CUR.GS.both_x_axis )
|
|
|
1645 |
CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio;
|
|
|
1646 |
else
|
|
|
1647 |
CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio;
|
|
|
1648 |
}
|
|
|
1649 |
else
|
|
|
1650 |
#endif
|
|
|
1651 |
{
|
|
|
1652 |
if ( CUR.GS.projVector.y == 0 )
|
|
|
1653 |
CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio;
|
|
|
1654 |
|
|
|
1655 |
else if ( CUR.GS.projVector.x == 0 )
|
|
|
1656 |
CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio;
|
|
|
1657 |
|
|
|
1658 |
else
|
|
|
1659 |
{
|
|
|
1660 |
FT_Long x, y;
|
|
|
1661 |
|
|
|
1662 |
|
|
|
1663 |
x = TT_MULDIV( CUR.GS.projVector.x,
|
|
|
1664 |
CUR.tt_metrics.x_ratio, 0x4000 );
|
|
|
1665 |
y = TT_MULDIV( CUR.GS.projVector.y,
|
|
|
1666 |
CUR.tt_metrics.y_ratio, 0x4000 );
|
|
|
1667 |
CUR.tt_metrics.ratio = TT_VecLen( x, y );
|
|
|
1668 |
}
|
|
|
1669 |
}
|
|
|
1670 |
}
|
|
|
1671 |
return CUR.tt_metrics.ratio;
|
|
|
1672 |
}
|
|
|
1673 |
|
|
|
1674 |
|
|
|
1675 |
static FT_Long
|
|
|
1676 |
Current_Ppem( EXEC_OP )
|
|
|
1677 |
{
|
|
|
1678 |
return TT_MULFIX( CUR.tt_metrics.ppem, CURRENT_Ratio() );
|
|
|
1679 |
}
|
|
|
1680 |
|
|
|
1681 |
|
|
|
1682 |
/*************************************************************************/
|
|
|
1683 |
/* */
|
|
|
1684 |
/* Functions related to the control value table (CVT). */
|
|
|
1685 |
/* */
|
|
|
1686 |
/*************************************************************************/
|
|
|
1687 |
|
|
|
1688 |
|
|
|
1689 |
FT_CALLBACK_DEF( FT_F26Dot6 )
|
|
|
1690 |
Read_CVT( EXEC_OP_ FT_ULong idx )
|
|
|
1691 |
{
|
|
|
1692 |
return CUR.cvt[idx];
|
|
|
1693 |
}
|
|
|
1694 |
|
|
|
1695 |
|
|
|
1696 |
FT_CALLBACK_DEF( FT_F26Dot6 )
|
|
|
1697 |
Read_CVT_Stretched( EXEC_OP_ FT_ULong idx )
|
|
|
1698 |
{
|
|
|
1699 |
return TT_MULFIX( CUR.cvt[idx], CURRENT_Ratio() );
|
|
|
1700 |
}
|
|
|
1701 |
|
|
|
1702 |
|
|
|
1703 |
FT_CALLBACK_DEF( void )
|
|
|
1704 |
Write_CVT( EXEC_OP_ FT_ULong idx,
|
|
|
1705 |
FT_F26Dot6 value )
|
|
|
1706 |
{
|
|
|
1707 |
CUR.cvt[idx] = value;
|
|
|
1708 |
}
|
|
|
1709 |
|
|
|
1710 |
|
|
|
1711 |
FT_CALLBACK_DEF( void )
|
|
|
1712 |
Write_CVT_Stretched( EXEC_OP_ FT_ULong idx,
|
|
|
1713 |
FT_F26Dot6 value )
|
|
|
1714 |
{
|
|
|
1715 |
CUR.cvt[idx] = FT_DivFix( value, CURRENT_Ratio() );
|
|
|
1716 |
}
|
|
|
1717 |
|
|
|
1718 |
|
|
|
1719 |
FT_CALLBACK_DEF( void )
|
|
|
1720 |
Move_CVT( EXEC_OP_ FT_ULong idx,
|
|
|
1721 |
FT_F26Dot6 value )
|
|
|
1722 |
{
|
|
|
1723 |
CUR.cvt[idx] += value;
|
|
|
1724 |
}
|
|
|
1725 |
|
|
|
1726 |
|
|
|
1727 |
FT_CALLBACK_DEF( void )
|
|
|
1728 |
Move_CVT_Stretched( EXEC_OP_ FT_ULong idx,
|
|
|
1729 |
FT_F26Dot6 value )
|
|
|
1730 |
{
|
|
|
1731 |
CUR.cvt[idx] += FT_DivFix( value, CURRENT_Ratio() );
|
|
|
1732 |
}
|
|
|
1733 |
|
|
|
1734 |
|
|
|
1735 |
/*************************************************************************/
|
|
|
1736 |
/* */
|
|
|
1737 |
/* <Function> */
|
|
|
1738 |
/* GetShortIns */
|
|
|
1739 |
/* */
|
|
|
1740 |
/* <Description> */
|
|
|
1741 |
/* Returns a short integer taken from the instruction stream at */
|
|
|
1742 |
/* address IP. */
|
|
|
1743 |
/* */
|
|
|
1744 |
/* <Return> */
|
|
|
1745 |
/* Short read at code[IP]. */
|
|
|
1746 |
/* */
|
|
|
1747 |
/* <Note> */
|
|
|
1748 |
/* This one could become a macro. */
|
|
|
1749 |
/* */
|
|
|
1750 |
static FT_Short
|
|
|
1751 |
GetShortIns( EXEC_OP )
|
|
|
1752 |
{
|
|
|
1753 |
/* Reading a byte stream so there is no endianess (DaveP) */
|
|
|
1754 |
CUR.IP += 2;
|
|
|
1755 |
return (FT_Short)( ( CUR.code[CUR.IP - 2] << 8 ) +
|
|
|
1756 |
CUR.code[CUR.IP - 1] );
|
|
|
1757 |
}
|
|
|
1758 |
|
|
|
1759 |
|
|
|
1760 |
/*************************************************************************/
|
|
|
1761 |
/* */
|
|
|
1762 |
/* <Function> */
|
|
|
1763 |
/* Ins_Goto_CodeRange */
|
|
|
1764 |
/* */
|
|
|
1765 |
/* <Description> */
|
|
|
1766 |
/* Goes to a certain code range in the instruction stream. */
|
|
|
1767 |
/* */
|
|
|
1768 |
/* <Input> */
|
|
|
1769 |
/* aRange :: The index of the code range. */
|
|
|
1770 |
/* */
|
|
|
1771 |
/* aIP :: The new IP address in the code range. */
|
|
|
1772 |
/* */
|
|
|
1773 |
/* <Return> */
|
|
|
1774 |
/* SUCCESS or FAILURE. */
|
|
|
1775 |
/* */
|
|
|
1776 |
static FT_Bool
|
|
|
1777 |
Ins_Goto_CodeRange( EXEC_OP_ FT_Int aRange,
|
|
|
1778 |
FT_ULong aIP )
|
|
|
1779 |
{
|
|
|
1780 |
TT_CodeRange* range;
|
|
|
1781 |
|
|
|
1782 |
|
|
|
1783 |
if ( aRange < 1 || aRange > 3 )
|
|
|
1784 |
{
|
|
|
1785 |
CUR.error = TT_Err_Bad_Argument;
|
|
|
1786 |
return FAILURE;
|
|
|
1787 |
}
|
|
|
1788 |
|
|
|
1789 |
range = &CUR.codeRangeTable[aRange - 1];
|
|
|
1790 |
|
|
|
1791 |
if ( range->base == NULL ) /* invalid coderange */
|
|
|
1792 |
{
|
|
|
1793 |
CUR.error = TT_Err_Invalid_CodeRange;
|
|
|
1794 |
return FAILURE;
|
|
|
1795 |
}
|
|
|
1796 |
|
|
|
1797 |
/* NOTE: Because the last instruction of a program may be a CALL */
|
|
|
1798 |
/* which will return to the first byte *after* the code */
|
|
|
1799 |
/* range, we test for AIP <= Size, instead of AIP < Size. */
|
|
|
1800 |
|
|
|
1801 |
if ( aIP > range->size )
|
|
|
1802 |
{
|
|
|
1803 |
CUR.error = TT_Err_Code_Overflow;
|
|
|
1804 |
return FAILURE;
|
|
|
1805 |
}
|
|
|
1806 |
|
|
|
1807 |
CUR.code = range->base;
|
|
|
1808 |
CUR.codeSize = range->size;
|
|
|
1809 |
CUR.IP = aIP;
|
|
|
1810 |
CUR.curRange = aRange;
|
|
|
1811 |
|
|
|
1812 |
return SUCCESS;
|
|
|
1813 |
}
|
|
|
1814 |
|
|
|
1815 |
|
|
|
1816 |
/*************************************************************************/
|
|
|
1817 |
/* */
|
|
|
1818 |
/* <Function> */
|
|
|
1819 |
/* Direct_Move */
|
|
|
1820 |
/* */
|
|
|
1821 |
/* <Description> */
|
|
|
1822 |
/* Moves a point by a given distance along the freedom vector. The */
|
|
|
1823 |
/* point will be `touched'. */
|
|
|
1824 |
/* */
|
|
|
1825 |
/* <Input> */
|
|
|
1826 |
/* point :: The index of the point to move. */
|
|
|
1827 |
/* */
|
|
|
1828 |
/* distance :: The distance to apply. */
|
|
|
1829 |
/* */
|
|
|
1830 |
/* <InOut> */
|
|
|
1831 |
/* zone :: The affected glyph zone. */
|
|
|
1832 |
/* */
|
|
|
1833 |
static void
|
|
|
1834 |
Direct_Move( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1835 |
FT_UShort point,
|
|
|
1836 |
FT_F26Dot6 distance )
|
|
|
1837 |
{
|
|
|
1838 |
FT_F26Dot6 v;
|
|
|
1839 |
|
|
|
1840 |
|
|
|
1841 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
1842 |
FT_ASSERT( !CUR.face->unpatented_hinting );
|
|
|
1843 |
#endif
|
|
|
1844 |
|
|
|
1845 |
v = CUR.GS.freeVector.x;
|
|
|
1846 |
|
|
|
1847 |
if ( v != 0 )
|
|
|
1848 |
{
|
|
|
1849 |
zone->cur[point].x += TT_MULDIV( distance,
|
|
|
1850 |
v * 0x10000L,
|
|
|
1851 |
CUR.F_dot_P );
|
|
|
1852 |
|
|
|
1853 |
zone->tags[point] |= FT_CURVE_TAG_TOUCH_X;
|
|
|
1854 |
}
|
|
|
1855 |
|
|
|
1856 |
v = CUR.GS.freeVector.y;
|
|
|
1857 |
|
|
|
1858 |
if ( v != 0 )
|
|
|
1859 |
{
|
|
|
1860 |
zone->cur[point].y += TT_MULDIV( distance,
|
|
|
1861 |
v * 0x10000L,
|
|
|
1862 |
CUR.F_dot_P );
|
|
|
1863 |
|
|
|
1864 |
zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y;
|
|
|
1865 |
}
|
|
|
1866 |
}
|
|
|
1867 |
|
|
|
1868 |
|
|
|
1869 |
/*************************************************************************/
|
|
|
1870 |
/* */
|
|
|
1871 |
/* <Function> */
|
|
|
1872 |
/* Direct_Move_Orig */
|
|
|
1873 |
/* */
|
|
|
1874 |
/* <Description> */
|
|
|
1875 |
/* Moves the *original* position of a point by a given distance along */
|
|
|
1876 |
/* the freedom vector. Obviously, the point will not be `touched'. */
|
|
|
1877 |
/* */
|
|
|
1878 |
/* <Input> */
|
|
|
1879 |
/* point :: The index of the point to move. */
|
|
|
1880 |
/* */
|
|
|
1881 |
/* distance :: The distance to apply. */
|
|
|
1882 |
/* */
|
|
|
1883 |
/* <InOut> */
|
|
|
1884 |
/* zone :: The affected glyph zone. */
|
|
|
1885 |
/* */
|
|
|
1886 |
static void
|
|
|
1887 |
Direct_Move_Orig( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1888 |
FT_UShort point,
|
|
|
1889 |
FT_F26Dot6 distance )
|
|
|
1890 |
{
|
|
|
1891 |
FT_F26Dot6 v;
|
|
|
1892 |
|
|
|
1893 |
|
|
|
1894 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
1895 |
FT_ASSERT( !CUR.face->unpatented_hinting );
|
|
|
1896 |
#endif
|
|
|
1897 |
|
|
|
1898 |
v = CUR.GS.freeVector.x;
|
|
|
1899 |
|
|
|
1900 |
if ( v != 0 )
|
|
|
1901 |
zone->org[point].x += TT_MULDIV( distance,
|
|
|
1902 |
v * 0x10000L,
|
|
|
1903 |
CUR.F_dot_P );
|
|
|
1904 |
|
|
|
1905 |
v = CUR.GS.freeVector.y;
|
|
|
1906 |
|
|
|
1907 |
if ( v != 0 )
|
|
|
1908 |
zone->org[point].y += TT_MULDIV( distance,
|
|
|
1909 |
v * 0x10000L,
|
|
|
1910 |
CUR.F_dot_P );
|
|
|
1911 |
}
|
|
|
1912 |
|
|
|
1913 |
|
|
|
1914 |
/*************************************************************************/
|
|
|
1915 |
/* */
|
|
|
1916 |
/* Special versions of Direct_Move() */
|
|
|
1917 |
/* */
|
|
|
1918 |
/* The following versions are used whenever both vectors are both */
|
|
|
1919 |
/* along one of the coordinate unit vectors, i.e. in 90% of the cases. */
|
|
|
1920 |
/* */
|
|
|
1921 |
/*************************************************************************/
|
|
|
1922 |
|
|
|
1923 |
|
|
|
1924 |
static void
|
|
|
1925 |
Direct_Move_X( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1926 |
FT_UShort point,
|
|
|
1927 |
FT_F26Dot6 distance )
|
|
|
1928 |
{
|
|
|
1929 |
FT_UNUSED_EXEC;
|
|
|
1930 |
|
|
|
1931 |
zone->cur[point].x += distance;
|
|
|
1932 |
zone->tags[point] |= FT_CURVE_TAG_TOUCH_X;
|
|
|
1933 |
}
|
|
|
1934 |
|
|
|
1935 |
|
|
|
1936 |
static void
|
|
|
1937 |
Direct_Move_Y( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1938 |
FT_UShort point,
|
|
|
1939 |
FT_F26Dot6 distance )
|
|
|
1940 |
{
|
|
|
1941 |
FT_UNUSED_EXEC;
|
|
|
1942 |
|
|
|
1943 |
zone->cur[point].y += distance;
|
|
|
1944 |
zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y;
|
|
|
1945 |
}
|
|
|
1946 |
|
|
|
1947 |
|
|
|
1948 |
/*************************************************************************/
|
|
|
1949 |
/* */
|
|
|
1950 |
/* Special versions of Direct_Move_Orig() */
|
|
|
1951 |
/* */
|
|
|
1952 |
/* The following versions are used whenever both vectors are both */
|
|
|
1953 |
/* along one of the coordinate unit vectors, i.e. in 90% of the cases. */
|
|
|
1954 |
/* */
|
|
|
1955 |
/*************************************************************************/
|
|
|
1956 |
|
|
|
1957 |
|
|
|
1958 |
static void
|
|
|
1959 |
Direct_Move_Orig_X( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1960 |
FT_UShort point,
|
|
|
1961 |
FT_F26Dot6 distance )
|
|
|
1962 |
{
|
|
|
1963 |
FT_UNUSED_EXEC;
|
|
|
1964 |
|
|
|
1965 |
zone->org[point].x += distance;
|
|
|
1966 |
}
|
|
|
1967 |
|
|
|
1968 |
|
|
|
1969 |
static void
|
|
|
1970 |
Direct_Move_Orig_Y( EXEC_OP_ TT_GlyphZone zone,
|
|
|
1971 |
FT_UShort point,
|
|
|
1972 |
FT_F26Dot6 distance )
|
|
|
1973 |
{
|
|
|
1974 |
FT_UNUSED_EXEC;
|
|
|
1975 |
|
|
|
1976 |
zone->org[point].y += distance;
|
|
|
1977 |
}
|
|
|
1978 |
|
|
|
1979 |
|
|
|
1980 |
/*************************************************************************/
|
|
|
1981 |
/* */
|
|
|
1982 |
/* <Function> */
|
|
|
1983 |
/* Round_None */
|
|
|
1984 |
/* */
|
|
|
1985 |
/* <Description> */
|
|
|
1986 |
/* Does not round, but adds engine compensation. */
|
|
|
1987 |
/* */
|
|
|
1988 |
/* <Input> */
|
|
|
1989 |
/* distance :: The distance (not) to round. */
|
|
|
1990 |
/* */
|
|
|
1991 |
/* compensation :: The engine compensation. */
|
|
|
1992 |
/* */
|
|
|
1993 |
/* <Return> */
|
|
|
1994 |
/* The compensated distance. */
|
|
|
1995 |
/* */
|
|
|
1996 |
/* <Note> */
|
|
|
1997 |
/* The TrueType specification says very few about the relationship */
|
|
|
1998 |
/* between rounding and engine compensation. However, it seems from */
|
|
|
1999 |
/* the description of super round that we should add the compensation */
|
|
|
2000 |
/* before rounding. */
|
|
|
2001 |
/* */
|
|
|
2002 |
static FT_F26Dot6
|
|
|
2003 |
Round_None( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2004 |
FT_F26Dot6 compensation )
|
|
|
2005 |
{
|
|
|
2006 |
FT_F26Dot6 val;
|
|
|
2007 |
|
|
|
2008 |
FT_UNUSED_EXEC;
|
|
|
2009 |
|
|
|
2010 |
|
|
|
2011 |
if ( distance >= 0 )
|
|
|
2012 |
{
|
|
|
2013 |
val = distance + compensation;
|
|
|
2014 |
if ( distance && val < 0 )
|
|
|
2015 |
val = 0;
|
|
|
2016 |
}
|
|
|
2017 |
else
|
|
|
2018 |
{
|
|
|
2019 |
val = distance - compensation;
|
|
|
2020 |
if ( val > 0 )
|
|
|
2021 |
val = 0;
|
|
|
2022 |
}
|
|
|
2023 |
return val;
|
|
|
2024 |
}
|
|
|
2025 |
|
|
|
2026 |
|
|
|
2027 |
/*************************************************************************/
|
|
|
2028 |
/* */
|
|
|
2029 |
/* <Function> */
|
|
|
2030 |
/* Round_To_Grid */
|
|
|
2031 |
/* */
|
|
|
2032 |
/* <Description> */
|
|
|
2033 |
/* Rounds value to grid after adding engine compensation. */
|
|
|
2034 |
/* */
|
|
|
2035 |
/* <Input> */
|
|
|
2036 |
/* distance :: The distance to round. */
|
|
|
2037 |
/* */
|
|
|
2038 |
/* compensation :: The engine compensation. */
|
|
|
2039 |
/* */
|
|
|
2040 |
/* <Return> */
|
|
|
2041 |
/* Rounded distance. */
|
|
|
2042 |
/* */
|
|
|
2043 |
static FT_F26Dot6
|
|
|
2044 |
Round_To_Grid( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2045 |
FT_F26Dot6 compensation )
|
|
|
2046 |
{
|
|
|
2047 |
FT_F26Dot6 val;
|
|
|
2048 |
|
|
|
2049 |
FT_UNUSED_EXEC;
|
|
|
2050 |
|
|
|
2051 |
|
|
|
2052 |
if ( distance >= 0 )
|
|
|
2053 |
{
|
|
|
2054 |
val = distance + compensation + 32;
|
|
|
2055 |
if ( distance && val > 0 )
|
|
|
2056 |
val &= ~63;
|
|
|
2057 |
else
|
|
|
2058 |
val = 0;
|
|
|
2059 |
}
|
|
|
2060 |
else
|
|
|
2061 |
{
|
|
|
2062 |
val = -FT_PIX_ROUND( compensation - distance );
|
|
|
2063 |
if ( val > 0 )
|
|
|
2064 |
val = 0;
|
|
|
2065 |
}
|
|
|
2066 |
|
|
|
2067 |
return val;
|
|
|
2068 |
}
|
|
|
2069 |
|
|
|
2070 |
|
|
|
2071 |
/*************************************************************************/
|
|
|
2072 |
/* */
|
|
|
2073 |
/* <Function> */
|
|
|
2074 |
/* Round_To_Half_Grid */
|
|
|
2075 |
/* */
|
|
|
2076 |
/* <Description> */
|
|
|
2077 |
/* Rounds value to half grid after adding engine compensation. */
|
|
|
2078 |
/* */
|
|
|
2079 |
/* <Input> */
|
|
|
2080 |
/* distance :: The distance to round. */
|
|
|
2081 |
/* */
|
|
|
2082 |
/* compensation :: The engine compensation. */
|
|
|
2083 |
/* */
|
|
|
2084 |
/* <Return> */
|
|
|
2085 |
/* Rounded distance. */
|
|
|
2086 |
/* */
|
|
|
2087 |
static FT_F26Dot6
|
|
|
2088 |
Round_To_Half_Grid( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2089 |
FT_F26Dot6 compensation )
|
|
|
2090 |
{
|
|
|
2091 |
FT_F26Dot6 val;
|
|
|
2092 |
|
|
|
2093 |
FT_UNUSED_EXEC;
|
|
|
2094 |
|
|
|
2095 |
|
|
|
2096 |
if ( distance >= 0 )
|
|
|
2097 |
{
|
|
|
2098 |
val = FT_PIX_FLOOR( distance + compensation ) + 32;
|
|
|
2099 |
if ( distance && val < 0 )
|
|
|
2100 |
val = 0;
|
|
|
2101 |
}
|
|
|
2102 |
else
|
|
|
2103 |
{
|
|
|
2104 |
val = -( FT_PIX_FLOOR( compensation - distance ) + 32 );
|
|
|
2105 |
if ( val > 0 )
|
|
|
2106 |
val = 0;
|
|
|
2107 |
}
|
|
|
2108 |
|
|
|
2109 |
return val;
|
|
|
2110 |
}
|
|
|
2111 |
|
|
|
2112 |
|
|
|
2113 |
/*************************************************************************/
|
|
|
2114 |
/* */
|
|
|
2115 |
/* <Function> */
|
|
|
2116 |
/* Round_Down_To_Grid */
|
|
|
2117 |
/* */
|
|
|
2118 |
/* <Description> */
|
|
|
2119 |
/* Rounds value down to grid after adding engine compensation. */
|
|
|
2120 |
/* */
|
|
|
2121 |
/* <Input> */
|
|
|
2122 |
/* distance :: The distance to round. */
|
|
|
2123 |
/* */
|
|
|
2124 |
/* compensation :: The engine compensation. */
|
|
|
2125 |
/* */
|
|
|
2126 |
/* <Return> */
|
|
|
2127 |
/* Rounded distance. */
|
|
|
2128 |
/* */
|
|
|
2129 |
static FT_F26Dot6
|
|
|
2130 |
Round_Down_To_Grid( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2131 |
FT_F26Dot6 compensation )
|
|
|
2132 |
{
|
|
|
2133 |
FT_F26Dot6 val;
|
|
|
2134 |
|
|
|
2135 |
FT_UNUSED_EXEC;
|
|
|
2136 |
|
|
|
2137 |
|
|
|
2138 |
if ( distance >= 0 )
|
|
|
2139 |
{
|
|
|
2140 |
val = distance + compensation;
|
|
|
2141 |
if ( distance && val > 0 )
|
|
|
2142 |
val &= ~63;
|
|
|
2143 |
else
|
|
|
2144 |
val = 0;
|
|
|
2145 |
}
|
|
|
2146 |
else
|
|
|
2147 |
{
|
|
|
2148 |
val = -( ( compensation - distance ) & -64 );
|
|
|
2149 |
if ( val > 0 )
|
|
|
2150 |
val = 0;
|
|
|
2151 |
}
|
|
|
2152 |
|
|
|
2153 |
return val;
|
|
|
2154 |
}
|
|
|
2155 |
|
|
|
2156 |
|
|
|
2157 |
/*************************************************************************/
|
|
|
2158 |
/* */
|
|
|
2159 |
/* <Function> */
|
|
|
2160 |
/* Round_Up_To_Grid */
|
|
|
2161 |
/* */
|
|
|
2162 |
/* <Description> */
|
|
|
2163 |
/* Rounds value up to grid after adding engine compensation. */
|
|
|
2164 |
/* */
|
|
|
2165 |
/* <Input> */
|
|
|
2166 |
/* distance :: The distance to round. */
|
|
|
2167 |
/* */
|
|
|
2168 |
/* compensation :: The engine compensation. */
|
|
|
2169 |
/* */
|
|
|
2170 |
/* <Return> */
|
|
|
2171 |
/* Rounded distance. */
|
|
|
2172 |
/* */
|
|
|
2173 |
static FT_F26Dot6
|
|
|
2174 |
Round_Up_To_Grid( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2175 |
FT_F26Dot6 compensation )
|
|
|
2176 |
{
|
|
|
2177 |
FT_F26Dot6 val;
|
|
|
2178 |
|
|
|
2179 |
FT_UNUSED_EXEC;
|
|
|
2180 |
|
|
|
2181 |
|
|
|
2182 |
if ( distance >= 0 )
|
|
|
2183 |
{
|
|
|
2184 |
val = distance + compensation + 63;
|
|
|
2185 |
if ( distance && val > 0 )
|
|
|
2186 |
val &= ~63;
|
|
|
2187 |
else
|
|
|
2188 |
val = 0;
|
|
|
2189 |
}
|
|
|
2190 |
else
|
|
|
2191 |
{
|
|
|
2192 |
val = - FT_PIX_CEIL( compensation - distance );
|
|
|
2193 |
if ( val > 0 )
|
|
|
2194 |
val = 0;
|
|
|
2195 |
}
|
|
|
2196 |
|
|
|
2197 |
return val;
|
|
|
2198 |
}
|
|
|
2199 |
|
|
|
2200 |
|
|
|
2201 |
/*************************************************************************/
|
|
|
2202 |
/* */
|
|
|
2203 |
/* <Function> */
|
|
|
2204 |
/* Round_To_Double_Grid */
|
|
|
2205 |
/* */
|
|
|
2206 |
/* <Description> */
|
|
|
2207 |
/* Rounds value to double grid after adding engine compensation. */
|
|
|
2208 |
/* */
|
|
|
2209 |
/* <Input> */
|
|
|
2210 |
/* distance :: The distance to round. */
|
|
|
2211 |
/* */
|
|
|
2212 |
/* compensation :: The engine compensation. */
|
|
|
2213 |
/* */
|
|
|
2214 |
/* <Return> */
|
|
|
2215 |
/* Rounded distance. */
|
|
|
2216 |
/* */
|
|
|
2217 |
static FT_F26Dot6
|
|
|
2218 |
Round_To_Double_Grid( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2219 |
FT_F26Dot6 compensation )
|
|
|
2220 |
{
|
|
|
2221 |
FT_F26Dot6 val;
|
|
|
2222 |
|
|
|
2223 |
FT_UNUSED_EXEC;
|
|
|
2224 |
|
|
|
2225 |
|
|
|
2226 |
if ( distance >= 0 )
|
|
|
2227 |
{
|
|
|
2228 |
val = distance + compensation + 16;
|
|
|
2229 |
if ( distance && val > 0 )
|
|
|
2230 |
val &= ~31;
|
|
|
2231 |
else
|
|
|
2232 |
val = 0;
|
|
|
2233 |
}
|
|
|
2234 |
else
|
|
|
2235 |
{
|
|
|
2236 |
val = -FT_PAD_ROUND( compensation - distance, 32 );
|
|
|
2237 |
if ( val > 0 )
|
|
|
2238 |
val = 0;
|
|
|
2239 |
}
|
|
|
2240 |
|
|
|
2241 |
return val;
|
|
|
2242 |
}
|
|
|
2243 |
|
|
|
2244 |
|
|
|
2245 |
/*************************************************************************/
|
|
|
2246 |
/* */
|
|
|
2247 |
/* <Function> */
|
|
|
2248 |
/* Round_Super */
|
|
|
2249 |
/* */
|
|
|
2250 |
/* <Description> */
|
|
|
2251 |
/* Super-rounds value to grid after adding engine compensation. */
|
|
|
2252 |
/* */
|
|
|
2253 |
/* <Input> */
|
|
|
2254 |
/* distance :: The distance to round. */
|
|
|
2255 |
/* */
|
|
|
2256 |
/* compensation :: The engine compensation. */
|
|
|
2257 |
/* */
|
|
|
2258 |
/* <Return> */
|
|
|
2259 |
/* Rounded distance. */
|
|
|
2260 |
/* */
|
|
|
2261 |
/* <Note> */
|
|
|
2262 |
/* The TrueType specification says very few about the relationship */
|
|
|
2263 |
/* between rounding and engine compensation. However, it seems from */
|
|
|
2264 |
/* the description of super round that we should add the compensation */
|
|
|
2265 |
/* before rounding. */
|
|
|
2266 |
/* */
|
|
|
2267 |
static FT_F26Dot6
|
|
|
2268 |
Round_Super( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2269 |
FT_F26Dot6 compensation )
|
|
|
2270 |
{
|
|
|
2271 |
FT_F26Dot6 val;
|
|
|
2272 |
|
|
|
2273 |
|
|
|
2274 |
if ( distance >= 0 )
|
|
|
2275 |
{
|
|
|
2276 |
val = ( distance - CUR.phase + CUR.threshold + compensation ) &
|
|
|
2277 |
-CUR.period;
|
|
|
2278 |
if ( distance && val < 0 )
|
|
|
2279 |
val = 0;
|
|
|
2280 |
val += CUR.phase;
|
|
|
2281 |
}
|
|
|
2282 |
else
|
|
|
2283 |
{
|
|
|
2284 |
val = -( ( CUR.threshold - CUR.phase - distance + compensation ) &
|
|
|
2285 |
-CUR.period );
|
|
|
2286 |
if ( val > 0 )
|
|
|
2287 |
val = 0;
|
|
|
2288 |
val -= CUR.phase;
|
|
|
2289 |
}
|
|
|
2290 |
|
|
|
2291 |
return val;
|
|
|
2292 |
}
|
|
|
2293 |
|
|
|
2294 |
|
|
|
2295 |
/*************************************************************************/
|
|
|
2296 |
/* */
|
|
|
2297 |
/* <Function> */
|
|
|
2298 |
/* Round_Super_45 */
|
|
|
2299 |
/* */
|
|
|
2300 |
/* <Description> */
|
|
|
2301 |
/* Super-rounds value to grid after adding engine compensation. */
|
|
|
2302 |
/* */
|
|
|
2303 |
/* <Input> */
|
|
|
2304 |
/* distance :: The distance to round. */
|
|
|
2305 |
/* */
|
|
|
2306 |
/* compensation :: The engine compensation. */
|
|
|
2307 |
/* */
|
|
|
2308 |
/* <Return> */
|
|
|
2309 |
/* Rounded distance. */
|
|
|
2310 |
/* */
|
|
|
2311 |
/* <Note> */
|
|
|
2312 |
/* There is a separate function for Round_Super_45() as we may need */
|
|
|
2313 |
/* greater precision. */
|
|
|
2314 |
/* */
|
|
|
2315 |
static FT_F26Dot6
|
|
|
2316 |
Round_Super_45( EXEC_OP_ FT_F26Dot6 distance,
|
|
|
2317 |
FT_F26Dot6 compensation )
|
|
|
2318 |
{
|
|
|
2319 |
FT_F26Dot6 val;
|
|
|
2320 |
|
|
|
2321 |
|
|
|
2322 |
if ( distance >= 0 )
|
|
|
2323 |
{
|
|
|
2324 |
val = ( ( distance - CUR.phase + CUR.threshold + compensation ) /
|
|
|
2325 |
CUR.period ) * CUR.period;
|
|
|
2326 |
if ( distance && val < 0 )
|
|
|
2327 |
val = 0;
|
|
|
2328 |
val += CUR.phase;
|
|
|
2329 |
}
|
|
|
2330 |
else
|
|
|
2331 |
{
|
|
|
2332 |
val = -( ( ( CUR.threshold - CUR.phase - distance + compensation ) /
|
|
|
2333 |
CUR.period ) * CUR.period );
|
|
|
2334 |
if ( val > 0 )
|
|
|
2335 |
val = 0;
|
|
|
2336 |
val -= CUR.phase;
|
|
|
2337 |
}
|
|
|
2338 |
|
|
|
2339 |
return val;
|
|
|
2340 |
}
|
|
|
2341 |
|
|
|
2342 |
|
|
|
2343 |
/*************************************************************************/
|
|
|
2344 |
/* */
|
|
|
2345 |
/* <Function> */
|
|
|
2346 |
/* Compute_Round */
|
|
|
2347 |
/* */
|
|
|
2348 |
/* <Description> */
|
|
|
2349 |
/* Sets the rounding mode. */
|
|
|
2350 |
/* */
|
|
|
2351 |
/* <Input> */
|
|
|
2352 |
/* round_mode :: The rounding mode to be used. */
|
|
|
2353 |
/* */
|
|
|
2354 |
static void
|
|
|
2355 |
Compute_Round( EXEC_OP_ FT_Byte round_mode )
|
|
|
2356 |
{
|
|
|
2357 |
switch ( round_mode )
|
|
|
2358 |
{
|
|
|
2359 |
case TT_Round_Off:
|
|
|
2360 |
CUR.func_round = (TT_Round_Func)Round_None;
|
|
|
2361 |
break;
|
|
|
2362 |
|
|
|
2363 |
case TT_Round_To_Grid:
|
|
|
2364 |
CUR.func_round = (TT_Round_Func)Round_To_Grid;
|
|
|
2365 |
break;
|
|
|
2366 |
|
|
|
2367 |
case TT_Round_Up_To_Grid:
|
|
|
2368 |
CUR.func_round = (TT_Round_Func)Round_Up_To_Grid;
|
|
|
2369 |
break;
|
|
|
2370 |
|
|
|
2371 |
case TT_Round_Down_To_Grid:
|
|
|
2372 |
CUR.func_round = (TT_Round_Func)Round_Down_To_Grid;
|
|
|
2373 |
break;
|
|
|
2374 |
|
|
|
2375 |
case TT_Round_To_Half_Grid:
|
|
|
2376 |
CUR.func_round = (TT_Round_Func)Round_To_Half_Grid;
|
|
|
2377 |
break;
|
|
|
2378 |
|
|
|
2379 |
case TT_Round_To_Double_Grid:
|
|
|
2380 |
CUR.func_round = (TT_Round_Func)Round_To_Double_Grid;
|
|
|
2381 |
break;
|
|
|
2382 |
|
|
|
2383 |
case TT_Round_Super:
|
|
|
2384 |
CUR.func_round = (TT_Round_Func)Round_Super;
|
|
|
2385 |
break;
|
|
|
2386 |
|
|
|
2387 |
case TT_Round_Super_45:
|
|
|
2388 |
CUR.func_round = (TT_Round_Func)Round_Super_45;
|
|
|
2389 |
break;
|
|
|
2390 |
}
|
|
|
2391 |
}
|
|
|
2392 |
|
|
|
2393 |
|
|
|
2394 |
/*************************************************************************/
|
|
|
2395 |
/* */
|
|
|
2396 |
/* <Function> */
|
|
|
2397 |
/* SetSuperRound */
|
|
|
2398 |
/* */
|
|
|
2399 |
/* <Description> */
|
|
|
2400 |
/* Sets Super Round parameters. */
|
|
|
2401 |
/* */
|
|
|
2402 |
/* <Input> */
|
|
|
2403 |
/* GridPeriod :: Grid period */
|
|
|
2404 |
/* selector :: SROUND opcode */
|
|
|
2405 |
/* */
|
|
|
2406 |
static void
|
|
|
2407 |
SetSuperRound( EXEC_OP_ FT_F26Dot6 GridPeriod,
|
|
|
2408 |
FT_Long selector )
|
|
|
2409 |
{
|
|
|
2410 |
switch ( (FT_Int)( selector & 0xC0 ) )
|
|
|
2411 |
{
|
|
|
2412 |
case 0:
|
|
|
2413 |
CUR.period = GridPeriod / 2;
|
|
|
2414 |
break;
|
|
|
2415 |
|
|
|
2416 |
case 0x40:
|
|
|
2417 |
CUR.period = GridPeriod;
|
|
|
2418 |
break;
|
|
|
2419 |
|
|
|
2420 |
case 0x80:
|
|
|
2421 |
CUR.period = GridPeriod * 2;
|
|
|
2422 |
break;
|
|
|
2423 |
|
|
|
2424 |
/* This opcode is reserved, but... */
|
|
|
2425 |
|
|
|
2426 |
case 0xC0:
|
|
|
2427 |
CUR.period = GridPeriod;
|
|
|
2428 |
break;
|
|
|
2429 |
}
|
|
|
2430 |
|
|
|
2431 |
switch ( (FT_Int)( selector & 0x30 ) )
|
|
|
2432 |
{
|
|
|
2433 |
case 0:
|
|
|
2434 |
CUR.phase = 0;
|
|
|
2435 |
break;
|
|
|
2436 |
|
|
|
2437 |
case 0x10:
|
|
|
2438 |
CUR.phase = CUR.period / 4;
|
|
|
2439 |
break;
|
|
|
2440 |
|
|
|
2441 |
case 0x20:
|
|
|
2442 |
CUR.phase = CUR.period / 2;
|
|
|
2443 |
break;
|
|
|
2444 |
|
|
|
2445 |
case 0x30:
|
|
|
2446 |
CUR.phase = CUR.period * 3 / 4;
|
|
|
2447 |
break;
|
|
|
2448 |
}
|
|
|
2449 |
|
|
|
2450 |
if ( ( selector & 0x0F ) == 0 )
|
|
|
2451 |
CUR.threshold = CUR.period - 1;
|
|
|
2452 |
else
|
|
|
2453 |
CUR.threshold = ( (FT_Int)( selector & 0x0F ) - 4 ) * CUR.period / 8;
|
|
|
2454 |
|
|
|
2455 |
CUR.period /= 256;
|
|
|
2456 |
CUR.phase /= 256;
|
|
|
2457 |
CUR.threshold /= 256;
|
|
|
2458 |
}
|
|
|
2459 |
|
|
|
2460 |
|
|
|
2461 |
/*************************************************************************/
|
|
|
2462 |
/* */
|
|
|
2463 |
/* <Function> */
|
|
|
2464 |
/* Project */
|
|
|
2465 |
/* */
|
|
|
2466 |
/* <Description> */
|
|
|
2467 |
/* Computes the projection of vector given by (v2-v1) along the */
|
|
|
2468 |
/* current projection vector. */
|
|
|
2469 |
/* */
|
|
|
2470 |
/* <Input> */
|
|
|
2471 |
/* v1 :: First input vector. */
|
|
|
2472 |
/* v2 :: Second input vector. */
|
|
|
2473 |
/* */
|
|
|
2474 |
/* <Return> */
|
|
|
2475 |
/* The distance in F26dot6 format. */
|
|
|
2476 |
/* */
|
|
|
2477 |
static FT_F26Dot6
|
|
|
2478 |
Project( EXEC_OP_ FT_Pos dx,
|
|
|
2479 |
FT_Pos dy )
|
|
|
2480 |
{
|
|
|
2481 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
2482 |
FT_ASSERT( !CUR.face->unpatented_hinting );
|
|
|
2483 |
#endif
|
|
|
2484 |
|
|
|
2485 |
return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy,
|
|
|
2486 |
CUR.GS.projVector.x,
|
|
|
2487 |
CUR.GS.projVector.y );
|
|
|
2488 |
}
|
|
|
2489 |
|
|
|
2490 |
|
|
|
2491 |
/*************************************************************************/
|
|
|
2492 |
/* */
|
|
|
2493 |
/* <Function> */
|
|
|
2494 |
/* Dual_Project */
|
|
|
2495 |
/* */
|
|
|
2496 |
/* <Description> */
|
|
|
2497 |
/* Computes the projection of the vector given by (v2-v1) along the */
|
|
|
2498 |
/* current dual vector. */
|
|
|
2499 |
/* */
|
|
|
2500 |
/* <Input> */
|
|
|
2501 |
/* v1 :: First input vector. */
|
|
|
2502 |
/* v2 :: Second input vector. */
|
|
|
2503 |
/* */
|
|
|
2504 |
/* <Return> */
|
|
|
2505 |
/* The distance in F26dot6 format. */
|
|
|
2506 |
/* */
|
|
|
2507 |
static FT_F26Dot6
|
|
|
2508 |
Dual_Project( EXEC_OP_ FT_Pos dx,
|
|
|
2509 |
FT_Pos dy )
|
|
|
2510 |
{
|
|
|
2511 |
return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy,
|
|
|
2512 |
CUR.GS.dualVector.x,
|
|
|
2513 |
CUR.GS.dualVector.y );
|
|
|
2514 |
}
|
|
|
2515 |
|
|
|
2516 |
|
|
|
2517 |
/*************************************************************************/
|
|
|
2518 |
/* */
|
|
|
2519 |
/* <Function> */
|
|
|
2520 |
/* Project_x */
|
|
|
2521 |
/* */
|
|
|
2522 |
/* <Description> */
|
|
|
2523 |
/* Computes the projection of the vector given by (v2-v1) along the */
|
|
|
2524 |
/* horizontal axis. */
|
|
|
2525 |
/* */
|
|
|
2526 |
/* <Input> */
|
|
|
2527 |
/* v1 :: First input vector. */
|
|
|
2528 |
/* v2 :: Second input vector. */
|
|
|
2529 |
/* */
|
|
|
2530 |
/* <Return> */
|
|
|
2531 |
/* The distance in F26dot6 format. */
|
|
|
2532 |
/* */
|
|
|
2533 |
static FT_F26Dot6
|
|
|
2534 |
Project_x( EXEC_OP_ FT_Pos dx,
|
|
|
2535 |
FT_Pos dy )
|
|
|
2536 |
{
|
|
|
2537 |
FT_UNUSED_EXEC;
|
|
|
2538 |
FT_UNUSED( dy );
|
|
|
2539 |
|
|
|
2540 |
return dx;
|
|
|
2541 |
}
|
|
|
2542 |
|
|
|
2543 |
|
|
|
2544 |
/*************************************************************************/
|
|
|
2545 |
/* */
|
|
|
2546 |
/* <Function> */
|
|
|
2547 |
/* Project_y */
|
|
|
2548 |
/* */
|
|
|
2549 |
/* <Description> */
|
|
|
2550 |
/* Computes the projection of the vector given by (v2-v1) along the */
|
|
|
2551 |
/* vertical axis. */
|
|
|
2552 |
/* */
|
|
|
2553 |
/* <Input> */
|
|
|
2554 |
/* v1 :: First input vector. */
|
|
|
2555 |
/* v2 :: Second input vector. */
|
|
|
2556 |
/* */
|
|
|
2557 |
/* <Return> */
|
|
|
2558 |
/* The distance in F26dot6 format. */
|
|
|
2559 |
/* */
|
|
|
2560 |
static FT_F26Dot6
|
|
|
2561 |
Project_y( EXEC_OP_ FT_Pos dx,
|
|
|
2562 |
FT_Pos dy )
|
|
|
2563 |
{
|
|
|
2564 |
FT_UNUSED_EXEC;
|
|
|
2565 |
FT_UNUSED( dx );
|
|
|
2566 |
|
|
|
2567 |
return dy;
|
|
|
2568 |
}
|
|
|
2569 |
|
|
|
2570 |
|
|
|
2571 |
/*************************************************************************/
|
|
|
2572 |
/* */
|
|
|
2573 |
/* <Function> */
|
|
|
2574 |
/* Compute_Funcs */
|
|
|
2575 |
/* */
|
|
|
2576 |
/* <Description> */
|
|
|
2577 |
/* Computes the projection and movement function pointers according */
|
|
|
2578 |
/* to the current graphics state. */
|
|
|
2579 |
/* */
|
|
|
2580 |
static void
|
|
|
2581 |
Compute_Funcs( EXEC_OP )
|
|
|
2582 |
{
|
|
|
2583 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
2584 |
if ( CUR.face->unpatented_hinting )
|
|
|
2585 |
{
|
|
|
2586 |
/* If both vectors point rightwards along the x axis, set */
|
|
|
2587 |
/* `both-x-axis' true, otherwise set it false. The x values only */
|
|
|
2588 |
/* need be tested because the vector has been normalised to a unit */
|
|
|
2589 |
/* vector of length 0x4000 = unity. */
|
|
|
2590 |
CUR.GS.both_x_axis = (FT_Bool)( CUR.GS.projVector.x == 0x4000 &&
|
|
|
2591 |
CUR.GS.freeVector.x == 0x4000 );
|
|
|
2592 |
|
|
|
2593 |
/* Throw away projection and freedom vector information */
|
|
|
2594 |
/* because the patents don't allow them to be stored. */
|
|
|
2595 |
/* The relevant US Patents are 5155805 and 5325479. */
|
|
|
2596 |
CUR.GS.projVector.x = 0;
|
|
|
2597 |
CUR.GS.projVector.y = 0;
|
|
|
2598 |
CUR.GS.freeVector.x = 0;
|
|
|
2599 |
CUR.GS.freeVector.y = 0;
|
|
|
2600 |
|
|
|
2601 |
if ( CUR.GS.both_x_axis )
|
|
|
2602 |
{
|
|
|
2603 |
CUR.func_project = Project_x;
|
|
|
2604 |
CUR.func_move = Direct_Move_X;
|
|
|
2605 |
CUR.func_move_orig = Direct_Move_Orig_X;
|
|
|
2606 |
}
|
|
|
2607 |
else
|
|
|
2608 |
{
|
|
|
2609 |
CUR.func_project = Project_y;
|
|
|
2610 |
CUR.func_move = Direct_Move_Y;
|
|
|
2611 |
CUR.func_move_orig = Direct_Move_Orig_Y;
|
|
|
2612 |
}
|
|
|
2613 |
|
|
|
2614 |
if ( CUR.GS.dualVector.x == 0x4000 )
|
|
|
2615 |
CUR.func_dualproj = Project_x;
|
|
|
2616 |
else
|
|
|
2617 |
{
|
|
|
2618 |
if ( CUR.GS.dualVector.y == 0x4000 )
|
|
|
2619 |
CUR.func_dualproj = Project_y;
|
|
|
2620 |
else
|
|
|
2621 |
CUR.func_dualproj = Dual_Project;
|
|
|
2622 |
}
|
|
|
2623 |
|
|
|
2624 |
/* Force recalculation of cached aspect ratio */
|
|
|
2625 |
CUR.tt_metrics.ratio = 0;
|
|
|
2626 |
|
|
|
2627 |
return;
|
|
|
2628 |
}
|
|
|
2629 |
#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING */
|
|
|
2630 |
|
|
|
2631 |
if ( CUR.GS.freeVector.x == 0x4000 )
|
|
|
2632 |
CUR.F_dot_P = CUR.GS.projVector.x * 0x10000L;
|
|
|
2633 |
else
|
|
|
2634 |
{
|
|
|
2635 |
if ( CUR.GS.freeVector.y == 0x4000 )
|
|
|
2636 |
CUR.F_dot_P = CUR.GS.projVector.y * 0x10000L;
|
|
|
2637 |
else
|
|
|
2638 |
CUR.F_dot_P = (FT_Long)CUR.GS.projVector.x * CUR.GS.freeVector.x * 4 +
|
|
|
2639 |
(FT_Long)CUR.GS.projVector.y * CUR.GS.freeVector.y * 4;
|
|
|
2640 |
}
|
|
|
2641 |
|
|
|
2642 |
if ( CUR.GS.projVector.x == 0x4000 )
|
|
|
2643 |
CUR.func_project = (TT_Project_Func)Project_x;
|
|
|
2644 |
else
|
|
|
2645 |
{
|
|
|
2646 |
if ( CUR.GS.projVector.y == 0x4000 )
|
|
|
2647 |
CUR.func_project = (TT_Project_Func)Project_y;
|
|
|
2648 |
else
|
|
|
2649 |
CUR.func_project = (TT_Project_Func)Project;
|
|
|
2650 |
}
|
|
|
2651 |
|
|
|
2652 |
if ( CUR.GS.dualVector.x == 0x4000 )
|
|
|
2653 |
CUR.func_dualproj = (TT_Project_Func)Project_x;
|
|
|
2654 |
else
|
|
|
2655 |
{
|
|
|
2656 |
if ( CUR.GS.dualVector.y == 0x4000 )
|
|
|
2657 |
CUR.func_dualproj = (TT_Project_Func)Project_y;
|
|
|
2658 |
else
|
|
|
2659 |
CUR.func_dualproj = (TT_Project_Func)Dual_Project;
|
|
|
2660 |
}
|
|
|
2661 |
|
|
|
2662 |
CUR.func_move = (TT_Move_Func)Direct_Move;
|
|
|
2663 |
CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig;
|
|
|
2664 |
|
|
|
2665 |
if ( CUR.F_dot_P == 0x40000000L )
|
|
|
2666 |
{
|
|
|
2667 |
if ( CUR.GS.freeVector.x == 0x4000 )
|
|
|
2668 |
{
|
|
|
2669 |
CUR.func_move = (TT_Move_Func)Direct_Move_X;
|
|
|
2670 |
CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_X;
|
|
|
2671 |
}
|
|
|
2672 |
else
|
|
|
2673 |
{
|
|
|
2674 |
if ( CUR.GS.freeVector.y == 0x4000 )
|
|
|
2675 |
{
|
|
|
2676 |
CUR.func_move = (TT_Move_Func)Direct_Move_Y;
|
|
|
2677 |
CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_Y;
|
|
|
2678 |
}
|
|
|
2679 |
}
|
|
|
2680 |
}
|
|
|
2681 |
|
|
|
2682 |
/* at small sizes, F_dot_P can become too small, resulting */
|
|
|
2683 |
/* in overflows and `spikes' in a number of glyphs like `w'. */
|
|
|
2684 |
|
|
|
2685 |
if ( FT_ABS( CUR.F_dot_P ) < 0x4000000L )
|
|
|
2686 |
CUR.F_dot_P = 0x40000000L;
|
|
|
2687 |
|
|
|
2688 |
/* Disable cached aspect ratio */
|
|
|
2689 |
CUR.tt_metrics.ratio = 0;
|
|
|
2690 |
}
|
|
|
2691 |
|
|
|
2692 |
|
|
|
2693 |
/*************************************************************************/
|
|
|
2694 |
/* */
|
|
|
2695 |
/* <Function> */
|
|
|
2696 |
/* Normalize */
|
|
|
2697 |
/* */
|
|
|
2698 |
/* <Description> */
|
|
|
2699 |
/* Norms a vector. */
|
|
|
2700 |
/* */
|
|
|
2701 |
/* <Input> */
|
|
|
2702 |
/* Vx :: The horizontal input vector coordinate. */
|
|
|
2703 |
/* Vy :: The vertical input vector coordinate. */
|
|
|
2704 |
/* */
|
|
|
2705 |
/* <Output> */
|
|
|
2706 |
/* R :: The normed unit vector. */
|
|
|
2707 |
/* */
|
|
|
2708 |
/* <Return> */
|
|
|
2709 |
/* Returns FAILURE if a vector parameter is zero. */
|
|
|
2710 |
/* */
|
|
|
2711 |
/* <Note> */
|
|
|
2712 |
/* In case Vx and Vy are both zero, Normalize() returns SUCCESS, and */
|
|
|
2713 |
/* R is undefined. */
|
|
|
2714 |
/* */
|
|
|
2715 |
|
|
|
2716 |
|
|
|
2717 |
static FT_Bool
|
|
|
2718 |
Normalize( EXEC_OP_ FT_F26Dot6 Vx,
|
|
|
2719 |
FT_F26Dot6 Vy,
|
|
|
2720 |
FT_UnitVector* R )
|
|
|
2721 |
{
|
|
|
2722 |
FT_F26Dot6 W;
|
|
|
2723 |
FT_Bool S1, S2;
|
|
|
2724 |
|
|
|
2725 |
FT_UNUSED_EXEC;
|
|
|
2726 |
|
|
|
2727 |
|
|
|
2728 |
if ( FT_ABS( Vx ) < 0x10000L && FT_ABS( Vy ) < 0x10000L )
|
|
|
2729 |
{
|
|
|
2730 |
Vx *= 0x100;
|
|
|
2731 |
Vy *= 0x100;
|
|
|
2732 |
|
|
|
2733 |
W = TT_VecLen( Vx, Vy );
|
|
|
2734 |
|
|
|
2735 |
if ( W == 0 )
|
|
|
2736 |
{
|
|
|
2737 |
/* XXX: UNDOCUMENTED! It seems that it is possible to try */
|
|
|
2738 |
/* to normalize the vector (0,0). Return immediately. */
|
|
|
2739 |
return SUCCESS;
|
|
|
2740 |
}
|
|
|
2741 |
|
|
|
2742 |
R->x = (FT_F2Dot14)FT_MulDiv( Vx, 0x4000L, W );
|
|
|
2743 |
R->y = (FT_F2Dot14)FT_MulDiv( Vy, 0x4000L, W );
|
|
|
2744 |
|
|
|
2745 |
return SUCCESS;
|
|
|
2746 |
}
|
|
|
2747 |
|
|
|
2748 |
W = TT_VecLen( Vx, Vy );
|
|
|
2749 |
|
|
|
2750 |
Vx = FT_MulDiv( Vx, 0x4000L, W );
|
|
|
2751 |
Vy = FT_MulDiv( Vy, 0x4000L, W );
|
|
|
2752 |
|
|
|
2753 |
W = Vx * Vx + Vy * Vy;
|
|
|
2754 |
|
|
|
2755 |
/* Now, we want that Sqrt( W ) = 0x4000 */
|
|
|
2756 |
/* Or 0x10000000 <= W < 0x10004000 */
|
|
|
2757 |
|
|
|
2758 |
if ( Vx < 0 )
|
|
|
2759 |
{
|
|
|
2760 |
Vx = -Vx;
|
|
|
2761 |
S1 = TRUE;
|
|
|
2762 |
}
|
|
|
2763 |
else
|
|
|
2764 |
S1 = FALSE;
|
|
|
2765 |
|
|
|
2766 |
if ( Vy < 0 )
|
|
|
2767 |
{
|
|
|
2768 |
Vy = -Vy;
|
|
|
2769 |
S2 = TRUE;
|
|
|
2770 |
}
|
|
|
2771 |
else
|
|
|
2772 |
S2 = FALSE;
|
|
|
2773 |
|
|
|
2774 |
while ( W < 0x10000000L )
|
|
|
2775 |
{
|
|
|
2776 |
/* We need to increase W by a minimal amount */
|
|
|
2777 |
if ( Vx < Vy )
|
|
|
2778 |
Vx++;
|
|
|
2779 |
else
|
|
|
2780 |
Vy++;
|
|
|
2781 |
|
|
|
2782 |
W = Vx * Vx + Vy * Vy;
|
|
|
2783 |
}
|
|
|
2784 |
|
|
|
2785 |
while ( W >= 0x10004000L )
|
|
|
2786 |
{
|
|
|
2787 |
/* We need to decrease W by a minimal amount */
|
|
|
2788 |
if ( Vx < Vy )
|
|
|
2789 |
Vx--;
|
|
|
2790 |
else
|
|
|
2791 |
Vy--;
|
|
|
2792 |
|
|
|
2793 |
W = Vx * Vx + Vy * Vy;
|
|
|
2794 |
}
|
|
|
2795 |
|
|
|
2796 |
/* Note that in various cases, we can only */
|
|
|
2797 |
/* compute a Sqrt(W) of 0x3FFF, eg. Vx = Vy */
|
|
|
2798 |
|
|
|
2799 |
if ( S1 )
|
|
|
2800 |
Vx = -Vx;
|
|
|
2801 |
|
|
|
2802 |
if ( S2 )
|
|
|
2803 |
Vy = -Vy;
|
|
|
2804 |
|
|
|
2805 |
R->x = (FT_F2Dot14)Vx; /* Type conversion */
|
|
|
2806 |
R->y = (FT_F2Dot14)Vy; /* Type conversion */
|
|
|
2807 |
|
|
|
2808 |
return SUCCESS;
|
|
|
2809 |
}
|
|
|
2810 |
|
|
|
2811 |
|
|
|
2812 |
/*************************************************************************/
|
|
|
2813 |
/* */
|
|
|
2814 |
/* Here we start with the implementation of the various opcodes. */
|
|
|
2815 |
/* */
|
|
|
2816 |
/*************************************************************************/
|
|
|
2817 |
|
|
|
2818 |
|
|
|
2819 |
static FT_Bool
|
|
|
2820 |
Ins_SxVTL( EXEC_OP_ FT_UShort aIdx1,
|
|
|
2821 |
FT_UShort aIdx2,
|
|
|
2822 |
FT_Int aOpc,
|
|
|
2823 |
FT_UnitVector* Vec )
|
|
|
2824 |
{
|
|
|
2825 |
FT_Long A, B, C;
|
|
|
2826 |
FT_Vector* p1;
|
|
|
2827 |
FT_Vector* p2;
|
|
|
2828 |
|
|
|
2829 |
|
|
|
2830 |
if ( BOUNDS( aIdx1, CUR.zp2.n_points ) ||
|
|
|
2831 |
BOUNDS( aIdx2, CUR.zp1.n_points ) )
|
|
|
2832 |
{
|
|
|
2833 |
if ( CUR.pedantic_hinting )
|
|
|
2834 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
2835 |
return FAILURE;
|
|
|
2836 |
}
|
|
|
2837 |
|
|
|
2838 |
p1 = CUR.zp1.cur + aIdx2;
|
|
|
2839 |
p2 = CUR.zp2.cur + aIdx1;
|
|
|
2840 |
|
|
|
2841 |
A = p1->x - p2->x;
|
|
|
2842 |
B = p1->y - p2->y;
|
|
|
2843 |
|
|
|
2844 |
if ( ( aOpc & 1 ) != 0 )
|
|
|
2845 |
{
|
|
|
2846 |
C = B; /* counter clockwise rotation */
|
|
|
2847 |
B = A;
|
|
|
2848 |
A = -C;
|
|
|
2849 |
}
|
|
|
2850 |
|
|
|
2851 |
NORMalize( A, B, Vec );
|
|
|
2852 |
|
|
|
2853 |
return SUCCESS;
|
|
|
2854 |
}
|
|
|
2855 |
|
|
|
2856 |
|
|
|
2857 |
/* When not using the big switch statements, the interpreter uses a */
|
|
|
2858 |
/* call table defined later below in this source. Each opcode must */
|
|
|
2859 |
/* thus have a corresponding function, even trivial ones. */
|
|
|
2860 |
/* */
|
|
|
2861 |
/* They are all defined there. */
|
|
|
2862 |
|
|
|
2863 |
#define DO_SVTCA \
|
|
|
2864 |
{ \
|
|
|
2865 |
FT_Short A, B; \
|
|
|
2866 |
\
|
|
|
2867 |
\
|
|
|
2868 |
A = (FT_Short)( CUR.opcode & 1 ) << 14; \
|
|
|
2869 |
B = A ^ (FT_Short)0x4000; \
|
|
|
2870 |
\
|
|
|
2871 |
CUR.GS.freeVector.x = A; \
|
|
|
2872 |
CUR.GS.projVector.x = A; \
|
|
|
2873 |
CUR.GS.dualVector.x = A; \
|
|
|
2874 |
\
|
|
|
2875 |
CUR.GS.freeVector.y = B; \
|
|
|
2876 |
CUR.GS.projVector.y = B; \
|
|
|
2877 |
CUR.GS.dualVector.y = B; \
|
|
|
2878 |
\
|
|
|
2879 |
COMPUTE_Funcs(); \
|
|
|
2880 |
}
|
|
|
2881 |
|
|
|
2882 |
|
|
|
2883 |
#define DO_SPVTCA \
|
|
|
2884 |
{ \
|
|
|
2885 |
FT_Short A, B; \
|
|
|
2886 |
\
|
|
|
2887 |
\
|
|
|
2888 |
A = (FT_Short)( CUR.opcode & 1 ) << 14; \
|
|
|
2889 |
B = A ^ (FT_Short)0x4000; \
|
|
|
2890 |
\
|
|
|
2891 |
CUR.GS.projVector.x = A; \
|
|
|
2892 |
CUR.GS.dualVector.x = A; \
|
|
|
2893 |
\
|
|
|
2894 |
CUR.GS.projVector.y = B; \
|
|
|
2895 |
CUR.GS.dualVector.y = B; \
|
|
|
2896 |
\
|
|
|
2897 |
GUESS_VECTOR( freeVector ); \
|
|
|
2898 |
\
|
|
|
2899 |
COMPUTE_Funcs(); \
|
|
|
2900 |
}
|
|
|
2901 |
|
|
|
2902 |
|
|
|
2903 |
#define DO_SFVTCA \
|
|
|
2904 |
{ \
|
|
|
2905 |
FT_Short A, B; \
|
|
|
2906 |
\
|
|
|
2907 |
\
|
|
|
2908 |
A = (FT_Short)( CUR.opcode & 1 ) << 14; \
|
|
|
2909 |
B = A ^ (FT_Short)0x4000; \
|
|
|
2910 |
\
|
|
|
2911 |
CUR.GS.freeVector.x = A; \
|
|
|
2912 |
CUR.GS.freeVector.y = B; \
|
|
|
2913 |
\
|
|
|
2914 |
GUESS_VECTOR( projVector ); \
|
|
|
2915 |
\
|
|
|
2916 |
COMPUTE_Funcs(); \
|
|
|
2917 |
}
|
|
|
2918 |
|
|
|
2919 |
|
|
|
2920 |
#define DO_SPVTL \
|
|
|
2921 |
if ( INS_SxVTL( (FT_UShort)args[1], \
|
|
|
2922 |
(FT_UShort)args[0], \
|
|
|
2923 |
CUR.opcode, \
|
|
|
2924 |
&CUR.GS.projVector ) == SUCCESS ) \
|
|
|
2925 |
{ \
|
|
|
2926 |
CUR.GS.dualVector = CUR.GS.projVector; \
|
|
|
2927 |
GUESS_VECTOR( freeVector ); \
|
|
|
2928 |
COMPUTE_Funcs(); \
|
|
|
2929 |
}
|
|
|
2930 |
|
|
|
2931 |
|
|
|
2932 |
#define DO_SFVTL \
|
|
|
2933 |
if ( INS_SxVTL( (FT_UShort)args[1], \
|
|
|
2934 |
(FT_UShort)args[0], \
|
|
|
2935 |
CUR.opcode, \
|
|
|
2936 |
&CUR.GS.freeVector ) == SUCCESS ) \
|
|
|
2937 |
{ \
|
|
|
2938 |
GUESS_VECTOR( projVector ); \
|
|
|
2939 |
COMPUTE_Funcs(); \
|
|
|
2940 |
}
|
|
|
2941 |
|
|
|
2942 |
|
|
|
2943 |
#define DO_SFVTPV \
|
|
|
2944 |
GUESS_VECTOR( projVector ); \
|
|
|
2945 |
CUR.GS.freeVector = CUR.GS.projVector; \
|
|
|
2946 |
COMPUTE_Funcs();
|
|
|
2947 |
|
|
|
2948 |
|
|
|
2949 |
#define DO_SPVFS \
|
|
|
2950 |
{ \
|
|
|
2951 |
FT_Short S; \
|
|
|
2952 |
FT_Long X, Y; \
|
|
|
2953 |
\
|
|
|
2954 |
\
|
|
|
2955 |
/* Only use low 16bits, then sign extend */ \
|
|
|
2956 |
S = (FT_Short)args[1]; \
|
|
|
2957 |
Y = (FT_Long)S; \
|
|
|
2958 |
S = (FT_Short)args[0]; \
|
|
|
2959 |
X = (FT_Long)S; \
|
|
|
2960 |
\
|
|
|
2961 |
NORMalize( X, Y, &CUR.GS.projVector ); \
|
|
|
2962 |
\
|
|
|
2963 |
CUR.GS.dualVector = CUR.GS.projVector; \
|
|
|
2964 |
GUESS_VECTOR( freeVector ); \
|
|
|
2965 |
COMPUTE_Funcs(); \
|
|
|
2966 |
}
|
|
|
2967 |
|
|
|
2968 |
|
|
|
2969 |
#define DO_SFVFS \
|
|
|
2970 |
{ \
|
|
|
2971 |
FT_Short S; \
|
|
|
2972 |
FT_Long X, Y; \
|
|
|
2973 |
\
|
|
|
2974 |
\
|
|
|
2975 |
/* Only use low 16bits, then sign extend */ \
|
|
|
2976 |
S = (FT_Short)args[1]; \
|
|
|
2977 |
Y = (FT_Long)S; \
|
|
|
2978 |
S = (FT_Short)args[0]; \
|
|
|
2979 |
X = S; \
|
|
|
2980 |
\
|
|
|
2981 |
NORMalize( X, Y, &CUR.GS.freeVector ); \
|
|
|
2982 |
GUESS_VECTOR( projVector ); \
|
|
|
2983 |
COMPUTE_Funcs(); \
|
|
|
2984 |
}
|
|
|
2985 |
|
|
|
2986 |
|
|
|
2987 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
2988 |
#define DO_GPV \
|
|
|
2989 |
if ( CUR.face->unpatented_hinting ) \
|
|
|
2990 |
{ \
|
|
|
2991 |
args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \
|
|
|
2992 |
args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \
|
|
|
2993 |
} \
|
|
|
2994 |
else \
|
|
|
2995 |
{ \
|
|
|
2996 |
args[0] = CUR.GS.projVector.x; \
|
|
|
2997 |
args[1] = CUR.GS.projVector.y; \
|
|
|
2998 |
}
|
|
|
2999 |
#else
|
|
|
3000 |
#define DO_GPV \
|
|
|
3001 |
args[0] = CUR.GS.projVector.x; \
|
|
|
3002 |
args[1] = CUR.GS.projVector.y;
|
|
|
3003 |
#endif
|
|
|
3004 |
|
|
|
3005 |
|
|
|
3006 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
3007 |
#define DO_GFV \
|
|
|
3008 |
if ( CUR.face->unpatented_hinting ) \
|
|
|
3009 |
{ \
|
|
|
3010 |
args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \
|
|
|
3011 |
args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \
|
|
|
3012 |
} \
|
|
|
3013 |
else \
|
|
|
3014 |
{ \
|
|
|
3015 |
args[0] = CUR.GS.freeVector.x; \
|
|
|
3016 |
args[1] = CUR.GS.freeVector.y; \
|
|
|
3017 |
}
|
|
|
3018 |
#else
|
|
|
3019 |
#define DO_GFV \
|
|
|
3020 |
args[0] = CUR.GS.freeVector.x; \
|
|
|
3021 |
args[1] = CUR.GS.freeVector.y;
|
|
|
3022 |
#endif
|
|
|
3023 |
|
|
|
3024 |
|
|
|
3025 |
#define DO_SRP0 \
|
|
|
3026 |
CUR.GS.rp0 = (FT_UShort)args[0];
|
|
|
3027 |
|
|
|
3028 |
|
|
|
3029 |
#define DO_SRP1 \
|
|
|
3030 |
CUR.GS.rp1 = (FT_UShort)args[0];
|
|
|
3031 |
|
|
|
3032 |
|
|
|
3033 |
#define DO_SRP2 \
|
|
|
3034 |
CUR.GS.rp2 = (FT_UShort)args[0];
|
|
|
3035 |
|
|
|
3036 |
|
|
|
3037 |
#define DO_RTHG \
|
|
|
3038 |
CUR.GS.round_state = TT_Round_To_Half_Grid; \
|
|
|
3039 |
CUR.func_round = (TT_Round_Func)Round_To_Half_Grid;
|
|
|
3040 |
|
|
|
3041 |
|
|
|
3042 |
#define DO_RTG \
|
|
|
3043 |
CUR.GS.round_state = TT_Round_To_Grid; \
|
|
|
3044 |
CUR.func_round = (TT_Round_Func)Round_To_Grid;
|
|
|
3045 |
|
|
|
3046 |
|
|
|
3047 |
#define DO_RTDG \
|
|
|
3048 |
CUR.GS.round_state = TT_Round_To_Double_Grid; \
|
|
|
3049 |
CUR.func_round = (TT_Round_Func)Round_To_Double_Grid;
|
|
|
3050 |
|
|
|
3051 |
|
|
|
3052 |
#define DO_RUTG \
|
|
|
3053 |
CUR.GS.round_state = TT_Round_Up_To_Grid; \
|
|
|
3054 |
CUR.func_round = (TT_Round_Func)Round_Up_To_Grid;
|
|
|
3055 |
|
|
|
3056 |
|
|
|
3057 |
#define DO_RDTG \
|
|
|
3058 |
CUR.GS.round_state = TT_Round_Down_To_Grid; \
|
|
|
3059 |
CUR.func_round = (TT_Round_Func)Round_Down_To_Grid;
|
|
|
3060 |
|
|
|
3061 |
|
|
|
3062 |
#define DO_ROFF \
|
|
|
3063 |
CUR.GS.round_state = TT_Round_Off; \
|
|
|
3064 |
CUR.func_round = (TT_Round_Func)Round_None;
|
|
|
3065 |
|
|
|
3066 |
|
|
|
3067 |
#define DO_SROUND \
|
|
|
3068 |
SET_SuperRound( 0x4000, args[0] ); \
|
|
|
3069 |
CUR.GS.round_state = TT_Round_Super; \
|
|
|
3070 |
CUR.func_round = (TT_Round_Func)Round_Super;
|
|
|
3071 |
|
|
|
3072 |
|
|
|
3073 |
#define DO_S45ROUND \
|
|
|
3074 |
SET_SuperRound( 0x2D41, args[0] ); \
|
|
|
3075 |
CUR.GS.round_state = TT_Round_Super_45; \
|
|
|
3076 |
CUR.func_round = (TT_Round_Func)Round_Super_45;
|
|
|
3077 |
|
|
|
3078 |
|
|
|
3079 |
#define DO_SLOOP \
|
|
|
3080 |
if ( args[0] < 0 ) \
|
|
|
3081 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3082 |
else \
|
|
|
3083 |
CUR.GS.loop = args[0];
|
|
|
3084 |
|
|
|
3085 |
|
|
|
3086 |
#define DO_SMD \
|
|
|
3087 |
CUR.GS.minimum_distance = args[0];
|
|
|
3088 |
|
|
|
3089 |
|
|
|
3090 |
#define DO_SCVTCI \
|
|
|
3091 |
CUR.GS.control_value_cutin = (FT_F26Dot6)args[0];
|
|
|
3092 |
|
|
|
3093 |
|
|
|
3094 |
#define DO_SSWCI \
|
|
|
3095 |
CUR.GS.single_width_cutin = (FT_F26Dot6)args[0];
|
|
|
3096 |
|
|
|
3097 |
|
|
|
3098 |
/* XXX: UNDOCUMENTED! or bug in the Windows engine? */
|
|
|
3099 |
/* */
|
|
|
3100 |
/* It seems that the value that is read here is */
|
|
|
3101 |
/* expressed in 16.16 format rather than in font */
|
|
|
3102 |
/* units. */
|
|
|
3103 |
/* */
|
|
|
3104 |
#define DO_SSW \
|
|
|
3105 |
CUR.GS.single_width_value = (FT_F26Dot6)( args[0] >> 10 );
|
|
|
3106 |
|
|
|
3107 |
|
|
|
3108 |
#define DO_FLIPON \
|
|
|
3109 |
CUR.GS.auto_flip = TRUE;
|
|
|
3110 |
|
|
|
3111 |
|
|
|
3112 |
#define DO_FLIPOFF \
|
|
|
3113 |
CUR.GS.auto_flip = FALSE;
|
|
|
3114 |
|
|
|
3115 |
|
|
|
3116 |
#define DO_SDB \
|
|
|
3117 |
CUR.GS.delta_base = (FT_Short)args[0];
|
|
|
3118 |
|
|
|
3119 |
|
|
|
3120 |
#define DO_SDS \
|
|
|
3121 |
CUR.GS.delta_shift = (FT_Short)args[0];
|
|
|
3122 |
|
|
|
3123 |
|
|
|
3124 |
#define DO_MD /* nothing */
|
|
|
3125 |
|
|
|
3126 |
|
|
|
3127 |
#define DO_MPPEM \
|
|
|
3128 |
args[0] = CURRENT_Ppem();
|
|
|
3129 |
|
|
|
3130 |
|
|
|
3131 |
/* Note: The pointSize should be irrelevant in a given font program; */
|
|
|
3132 |
/* we thus decide to return only the ppem. */
|
|
|
3133 |
#if 0
|
|
|
3134 |
|
|
|
3135 |
#define DO_MPS \
|
|
|
3136 |
args[0] = CUR.metrics.pointSize;
|
|
|
3137 |
|
|
|
3138 |
#else
|
|
|
3139 |
|
|
|
3140 |
#define DO_MPS \
|
|
|
3141 |
args[0] = CURRENT_Ppem();
|
|
|
3142 |
|
|
|
3143 |
#endif /* 0 */
|
|
|
3144 |
|
|
|
3145 |
|
|
|
3146 |
#define DO_DUP \
|
|
|
3147 |
args[1] = args[0];
|
|
|
3148 |
|
|
|
3149 |
|
|
|
3150 |
#define DO_CLEAR \
|
|
|
3151 |
CUR.new_top = 0;
|
|
|
3152 |
|
|
|
3153 |
|
|
|
3154 |
#define DO_SWAP \
|
|
|
3155 |
{ \
|
|
|
3156 |
FT_Long L; \
|
|
|
3157 |
\
|
|
|
3158 |
\
|
|
|
3159 |
L = args[0]; \
|
|
|
3160 |
args[0] = args[1]; \
|
|
|
3161 |
args[1] = L; \
|
|
|
3162 |
}
|
|
|
3163 |
|
|
|
3164 |
|
|
|
3165 |
#define DO_DEPTH \
|
|
|
3166 |
args[0] = CUR.top;
|
|
|
3167 |
|
|
|
3168 |
|
|
|
3169 |
#define DO_CINDEX \
|
|
|
3170 |
{ \
|
|
|
3171 |
FT_Long L; \
|
|
|
3172 |
\
|
|
|
3173 |
\
|
|
|
3174 |
L = args[0]; \
|
|
|
3175 |
\
|
|
|
3176 |
if ( L <= 0 || L > CUR.args ) \
|
|
|
3177 |
{ \
|
|
|
3178 |
if ( CUR.pedantic_hinting ) \
|
|
|
3179 |
CUR.error = TT_Err_Invalid_Reference; \
|
|
|
3180 |
args[0] = 0; \
|
|
|
3181 |
} \
|
|
|
3182 |
else \
|
|
|
3183 |
args[0] = CUR.stack[CUR.args - L]; \
|
|
|
3184 |
}
|
|
|
3185 |
|
|
|
3186 |
|
|
|
3187 |
#define DO_JROT \
|
|
|
3188 |
if ( args[1] != 0 ) \
|
|
|
3189 |
{ \
|
|
|
3190 |
if ( args[0] == 0 && CUR.args == 0 ) \
|
|
|
3191 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3192 |
CUR.IP += args[0]; \
|
|
|
3193 |
if ( CUR.IP < 0 ) \
|
|
|
3194 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3195 |
CUR.step_ins = FALSE; \
|
|
|
3196 |
}
|
|
|
3197 |
|
|
|
3198 |
|
|
|
3199 |
#define DO_JMPR \
|
|
|
3200 |
if ( args[0] == 0 && CUR.args == 0 ) \
|
|
|
3201 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3202 |
CUR.IP += args[0]; \
|
|
|
3203 |
if ( CUR.IP < 0 ) \
|
|
|
3204 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3205 |
CUR.step_ins = FALSE;
|
|
|
3206 |
|
|
|
3207 |
|
|
|
3208 |
#define DO_JROF \
|
|
|
3209 |
if ( args[1] == 0 ) \
|
|
|
3210 |
{ \
|
|
|
3211 |
if ( args[0] == 0 && CUR.args == 0 ) \
|
|
|
3212 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3213 |
CUR.IP += args[0]; \
|
|
|
3214 |
if ( CUR.IP < 0 ) \
|
|
|
3215 |
CUR.error = TT_Err_Bad_Argument; \
|
|
|
3216 |
CUR.step_ins = FALSE; \
|
|
|
3217 |
}
|
|
|
3218 |
|
|
|
3219 |
|
|
|
3220 |
#define DO_LT \
|
|
|
3221 |
args[0] = ( args[0] < args[1] );
|
|
|
3222 |
|
|
|
3223 |
|
|
|
3224 |
#define DO_LTEQ \
|
|
|
3225 |
args[0] = ( args[0] <= args[1] );
|
|
|
3226 |
|
|
|
3227 |
|
|
|
3228 |
#define DO_GT \
|
|
|
3229 |
args[0] = ( args[0] > args[1] );
|
|
|
3230 |
|
|
|
3231 |
|
|
|
3232 |
#define DO_GTEQ \
|
|
|
3233 |
args[0] = ( args[0] >= args[1] );
|
|
|
3234 |
|
|
|
3235 |
|
|
|
3236 |
#define DO_EQ \
|
|
|
3237 |
args[0] = ( args[0] == args[1] );
|
|
|
3238 |
|
|
|
3239 |
|
|
|
3240 |
#define DO_NEQ \
|
|
|
3241 |
args[0] = ( args[0] != args[1] );
|
|
|
3242 |
|
|
|
3243 |
|
|
|
3244 |
#define DO_ODD \
|
|
|
3245 |
args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 64 );
|
|
|
3246 |
|
|
|
3247 |
|
|
|
3248 |
#define DO_EVEN \
|
|
|
3249 |
args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 0 );
|
|
|
3250 |
|
|
|
3251 |
|
|
|
3252 |
#define DO_AND \
|
|
|
3253 |
args[0] = ( args[0] && args[1] );
|
|
|
3254 |
|
|
|
3255 |
|
|
|
3256 |
#define DO_OR \
|
|
|
3257 |
args[0] = ( args[0] || args[1] );
|
|
|
3258 |
|
|
|
3259 |
|
|
|
3260 |
#define DO_NOT \
|
|
|
3261 |
args[0] = !args[0];
|
|
|
3262 |
|
|
|
3263 |
|
|
|
3264 |
#define DO_ADD \
|
|
|
3265 |
args[0] += args[1];
|
|
|
3266 |
|
|
|
3267 |
|
|
|
3268 |
#define DO_SUB \
|
|
|
3269 |
args[0] -= args[1];
|
|
|
3270 |
|
|
|
3271 |
|
|
|
3272 |
#define DO_DIV \
|
|
|
3273 |
if ( args[1] == 0 ) \
|
|
|
3274 |
CUR.error = TT_Err_Divide_By_Zero; \
|
|
|
3275 |
else \
|
|
|
3276 |
args[0] = TT_MULDIV_NO_ROUND( args[0], 64L, args[1] );
|
|
|
3277 |
|
|
|
3278 |
|
|
|
3279 |
#define DO_MUL \
|
|
|
3280 |
args[0] = TT_MULDIV( args[0], args[1], 64L );
|
|
|
3281 |
|
|
|
3282 |
|
|
|
3283 |
#define DO_ABS \
|
|
|
3284 |
args[0] = FT_ABS( args[0] );
|
|
|
3285 |
|
|
|
3286 |
|
|
|
3287 |
#define DO_NEG \
|
|
|
3288 |
args[0] = -args[0];
|
|
|
3289 |
|
|
|
3290 |
|
|
|
3291 |
#define DO_FLOOR \
|
|
|
3292 |
args[0] = FT_PIX_FLOOR( args[0] );
|
|
|
3293 |
|
|
|
3294 |
|
|
|
3295 |
#define DO_CEILING \
|
|
|
3296 |
args[0] = FT_PIX_CEIL( args[0] );
|
|
|
3297 |
|
|
|
3298 |
|
|
|
3299 |
#define DO_RS \
|
|
|
3300 |
{ \
|
|
|
3301 |
FT_ULong I = (FT_ULong)args[0]; \
|
|
|
3302 |
\
|
|
|
3303 |
\
|
|
|
3304 |
if ( BOUNDSL( I, CUR.storeSize ) ) \
|
|
|
3305 |
{ \
|
|
|
3306 |
if ( CUR.pedantic_hinting ) \
|
|
|
3307 |
{ \
|
|
|
3308 |
ARRAY_BOUND_ERROR; \
|
|
|
3309 |
} \
|
|
|
3310 |
else \
|
|
|
3311 |
args[0] = 0; \
|
|
|
3312 |
} \
|
|
|
3313 |
else \
|
|
|
3314 |
args[0] = CUR.storage[I]; \
|
|
|
3315 |
}
|
|
|
3316 |
|
|
|
3317 |
|
|
|
3318 |
#define DO_WS \
|
|
|
3319 |
{ \
|
|
|
3320 |
FT_ULong I = (FT_ULong)args[0]; \
|
|
|
3321 |
\
|
|
|
3322 |
\
|
|
|
3323 |
if ( BOUNDSL( I, CUR.storeSize ) ) \
|
|
|
3324 |
{ \
|
|
|
3325 |
if ( CUR.pedantic_hinting ) \
|
|
|
3326 |
{ \
|
|
|
3327 |
ARRAY_BOUND_ERROR; \
|
|
|
3328 |
} \
|
|
|
3329 |
} \
|
|
|
3330 |
else \
|
|
|
3331 |
CUR.storage[I] = args[1]; \
|
|
|
3332 |
}
|
|
|
3333 |
|
|
|
3334 |
|
|
|
3335 |
#define DO_RCVT \
|
|
|
3336 |
{ \
|
|
|
3337 |
FT_ULong I = (FT_ULong)args[0]; \
|
|
|
3338 |
\
|
|
|
3339 |
\
|
|
|
3340 |
if ( BOUNDSL( I, CUR.cvtSize ) ) \
|
|
|
3341 |
{ \
|
|
|
3342 |
if ( CUR.pedantic_hinting ) \
|
|
|
3343 |
{ \
|
|
|
3344 |
ARRAY_BOUND_ERROR; \
|
|
|
3345 |
} \
|
|
|
3346 |
else \
|
|
|
3347 |
args[0] = 0; \
|
|
|
3348 |
} \
|
|
|
3349 |
else \
|
|
|
3350 |
args[0] = CUR_Func_read_cvt( I ); \
|
|
|
3351 |
}
|
|
|
3352 |
|
|
|
3353 |
|
|
|
3354 |
#define DO_WCVTP \
|
|
|
3355 |
{ \
|
|
|
3356 |
FT_ULong I = (FT_ULong)args[0]; \
|
|
|
3357 |
\
|
|
|
3358 |
\
|
|
|
3359 |
if ( BOUNDSL( I, CUR.cvtSize ) ) \
|
|
|
3360 |
{ \
|
|
|
3361 |
if ( CUR.pedantic_hinting ) \
|
|
|
3362 |
{ \
|
|
|
3363 |
ARRAY_BOUND_ERROR; \
|
|
|
3364 |
} \
|
|
|
3365 |
} \
|
|
|
3366 |
else \
|
|
|
3367 |
CUR_Func_write_cvt( I, args[1] ); \
|
|
|
3368 |
}
|
|
|
3369 |
|
|
|
3370 |
|
|
|
3371 |
#define DO_WCVTF \
|
|
|
3372 |
{ \
|
|
|
3373 |
FT_ULong I = (FT_ULong)args[0]; \
|
|
|
3374 |
\
|
|
|
3375 |
\
|
|
|
3376 |
if ( BOUNDSL( I, CUR.cvtSize ) ) \
|
|
|
3377 |
{ \
|
|
|
3378 |
if ( CUR.pedantic_hinting ) \
|
|
|
3379 |
{ \
|
|
|
3380 |
ARRAY_BOUND_ERROR; \
|
|
|
3381 |
} \
|
|
|
3382 |
} \
|
|
|
3383 |
else \
|
|
|
3384 |
CUR.cvt[I] = TT_MULFIX( args[1], CUR.tt_metrics.scale ); \
|
|
|
3385 |
}
|
|
|
3386 |
|
|
|
3387 |
|
|
|
3388 |
#define DO_DEBUG \
|
|
|
3389 |
CUR.error = TT_Err_Debug_OpCode;
|
|
|
3390 |
|
|
|
3391 |
|
|
|
3392 |
#define DO_ROUND \
|
|
|
3393 |
args[0] = CUR_Func_round( \
|
|
|
3394 |
args[0], \
|
|
|
3395 |
CUR.tt_metrics.compensations[CUR.opcode - 0x68] );
|
|
|
3396 |
|
|
|
3397 |
|
|
|
3398 |
#define DO_NROUND \
|
|
|
3399 |
args[0] = ROUND_None( args[0], \
|
|
|
3400 |
CUR.tt_metrics.compensations[CUR.opcode - 0x6C] );
|
|
|
3401 |
|
|
|
3402 |
|
|
|
3403 |
#define DO_MAX \
|
|
|
3404 |
if ( args[1] > args[0] ) \
|
|
|
3405 |
args[0] = args[1];
|
|
|
3406 |
|
|
|
3407 |
|
|
|
3408 |
#define DO_MIN \
|
|
|
3409 |
if ( args[1] < args[0] ) \
|
|
|
3410 |
args[0] = args[1];
|
|
|
3411 |
|
|
|
3412 |
|
|
|
3413 |
#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
|
|
3414 |
|
|
|
3415 |
|
|
|
3416 |
#undef ARRAY_BOUND_ERROR
|
|
|
3417 |
#define ARRAY_BOUND_ERROR \
|
|
|
3418 |
{ \
|
|
|
3419 |
CUR.error = TT_Err_Invalid_Reference; \
|
|
|
3420 |
return; \
|
|
|
3421 |
}
|
|
|
3422 |
|
|
|
3423 |
|
|
|
3424 |
/*************************************************************************/
|
|
|
3425 |
/* */
|
|
|
3426 |
/* SVTCA[a]: Set (F and P) Vectors to Coordinate Axis */
|
|
|
3427 |
/* Opcode range: 0x00-0x01 */
|
|
|
3428 |
/* Stack: --> */
|
|
|
3429 |
/* */
|
|
|
3430 |
static void
|
|
|
3431 |
Ins_SVTCA( INS_ARG )
|
|
|
3432 |
{
|
|
|
3433 |
DO_SVTCA
|
|
|
3434 |
}
|
|
|
3435 |
|
|
|
3436 |
|
|
|
3437 |
/*************************************************************************/
|
|
|
3438 |
/* */
|
|
|
3439 |
/* SPVTCA[a]: Set PVector to Coordinate Axis */
|
|
|
3440 |
/* Opcode range: 0x02-0x03 */
|
|
|
3441 |
/* Stack: --> */
|
|
|
3442 |
/* */
|
|
|
3443 |
static void
|
|
|
3444 |
Ins_SPVTCA( INS_ARG )
|
|
|
3445 |
{
|
|
|
3446 |
DO_SPVTCA
|
|
|
3447 |
}
|
|
|
3448 |
|
|
|
3449 |
|
|
|
3450 |
/*************************************************************************/
|
|
|
3451 |
/* */
|
|
|
3452 |
/* SFVTCA[a]: Set FVector to Coordinate Axis */
|
|
|
3453 |
/* Opcode range: 0x04-0x05 */
|
|
|
3454 |
/* Stack: --> */
|
|
|
3455 |
/* */
|
|
|
3456 |
static void
|
|
|
3457 |
Ins_SFVTCA( INS_ARG )
|
|
|
3458 |
{
|
|
|
3459 |
DO_SFVTCA
|
|
|
3460 |
}
|
|
|
3461 |
|
|
|
3462 |
|
|
|
3463 |
/*************************************************************************/
|
|
|
3464 |
/* */
|
|
|
3465 |
/* SPVTL[a]: Set PVector To Line */
|
|
|
3466 |
/* Opcode range: 0x06-0x07 */
|
|
|
3467 |
/* Stack: uint32 uint32 --> */
|
|
|
3468 |
/* */
|
|
|
3469 |
static void
|
|
|
3470 |
Ins_SPVTL( INS_ARG )
|
|
|
3471 |
{
|
|
|
3472 |
DO_SPVTL
|
|
|
3473 |
}
|
|
|
3474 |
|
|
|
3475 |
|
|
|
3476 |
/*************************************************************************/
|
|
|
3477 |
/* */
|
|
|
3478 |
/* SFVTL[a]: Set FVector To Line */
|
|
|
3479 |
/* Opcode range: 0x08-0x09 */
|
|
|
3480 |
/* Stack: uint32 uint32 --> */
|
|
|
3481 |
/* */
|
|
|
3482 |
static void
|
|
|
3483 |
Ins_SFVTL( INS_ARG )
|
|
|
3484 |
{
|
|
|
3485 |
DO_SFVTL
|
|
|
3486 |
}
|
|
|
3487 |
|
|
|
3488 |
|
|
|
3489 |
/*************************************************************************/
|
|
|
3490 |
/* */
|
|
|
3491 |
/* SFVTPV[]: Set FVector To PVector */
|
|
|
3492 |
/* Opcode range: 0x0E */
|
|
|
3493 |
/* Stack: --> */
|
|
|
3494 |
/* */
|
|
|
3495 |
static void
|
|
|
3496 |
Ins_SFVTPV( INS_ARG )
|
|
|
3497 |
{
|
|
|
3498 |
DO_SFVTPV
|
|
|
3499 |
}
|
|
|
3500 |
|
|
|
3501 |
|
|
|
3502 |
/*************************************************************************/
|
|
|
3503 |
/* */
|
|
|
3504 |
/* SPVFS[]: Set PVector From Stack */
|
|
|
3505 |
/* Opcode range: 0x0A */
|
|
|
3506 |
/* Stack: f2.14 f2.14 --> */
|
|
|
3507 |
/* */
|
|
|
3508 |
static void
|
|
|
3509 |
Ins_SPVFS( INS_ARG )
|
|
|
3510 |
{
|
|
|
3511 |
DO_SPVFS
|
|
|
3512 |
}
|
|
|
3513 |
|
|
|
3514 |
|
|
|
3515 |
/*************************************************************************/
|
|
|
3516 |
/* */
|
|
|
3517 |
/* SFVFS[]: Set FVector From Stack */
|
|
|
3518 |
/* Opcode range: 0x0B */
|
|
|
3519 |
/* Stack: f2.14 f2.14 --> */
|
|
|
3520 |
/* */
|
|
|
3521 |
static void
|
|
|
3522 |
Ins_SFVFS( INS_ARG )
|
|
|
3523 |
{
|
|
|
3524 |
DO_SFVFS
|
|
|
3525 |
}
|
|
|
3526 |
|
|
|
3527 |
|
|
|
3528 |
/*************************************************************************/
|
|
|
3529 |
/* */
|
|
|
3530 |
/* GPV[]: Get Projection Vector */
|
|
|
3531 |
/* Opcode range: 0x0C */
|
|
|
3532 |
/* Stack: ef2.14 --> ef2.14 */
|
|
|
3533 |
/* */
|
|
|
3534 |
static void
|
|
|
3535 |
Ins_GPV( INS_ARG )
|
|
|
3536 |
{
|
|
|
3537 |
DO_GPV
|
|
|
3538 |
}
|
|
|
3539 |
|
|
|
3540 |
|
|
|
3541 |
/*************************************************************************/
|
|
|
3542 |
/* GFV[]: Get Freedom Vector */
|
|
|
3543 |
/* Opcode range: 0x0D */
|
|
|
3544 |
/* Stack: ef2.14 --> ef2.14 */
|
|
|
3545 |
/* */
|
|
|
3546 |
static void
|
|
|
3547 |
Ins_GFV( INS_ARG )
|
|
|
3548 |
{
|
|
|
3549 |
DO_GFV
|
|
|
3550 |
}
|
|
|
3551 |
|
|
|
3552 |
|
|
|
3553 |
/*************************************************************************/
|
|
|
3554 |
/* */
|
|
|
3555 |
/* SRP0[]: Set Reference Point 0 */
|
|
|
3556 |
/* Opcode range: 0x10 */
|
|
|
3557 |
/* Stack: uint32 --> */
|
|
|
3558 |
/* */
|
|
|
3559 |
static void
|
|
|
3560 |
Ins_SRP0( INS_ARG )
|
|
|
3561 |
{
|
|
|
3562 |
DO_SRP0
|
|
|
3563 |
}
|
|
|
3564 |
|
|
|
3565 |
|
|
|
3566 |
/*************************************************************************/
|
|
|
3567 |
/* */
|
|
|
3568 |
/* SRP1[]: Set Reference Point 1 */
|
|
|
3569 |
/* Opcode range: 0x11 */
|
|
|
3570 |
/* Stack: uint32 --> */
|
|
|
3571 |
/* */
|
|
|
3572 |
static void
|
|
|
3573 |
Ins_SRP1( INS_ARG )
|
|
|
3574 |
{
|
|
|
3575 |
DO_SRP1
|
|
|
3576 |
}
|
|
|
3577 |
|
|
|
3578 |
|
|
|
3579 |
/*************************************************************************/
|
|
|
3580 |
/* */
|
|
|
3581 |
/* SRP2[]: Set Reference Point 2 */
|
|
|
3582 |
/* Opcode range: 0x12 */
|
|
|
3583 |
/* Stack: uint32 --> */
|
|
|
3584 |
/* */
|
|
|
3585 |
static void
|
|
|
3586 |
Ins_SRP2( INS_ARG )
|
|
|
3587 |
{
|
|
|
3588 |
DO_SRP2
|
|
|
3589 |
}
|
|
|
3590 |
|
|
|
3591 |
|
|
|
3592 |
/*************************************************************************/
|
|
|
3593 |
/* */
|
|
|
3594 |
/* RTHG[]: Round To Half Grid */
|
|
|
3595 |
/* Opcode range: 0x19 */
|
|
|
3596 |
/* Stack: --> */
|
|
|
3597 |
/* */
|
|
|
3598 |
static void
|
|
|
3599 |
Ins_RTHG( INS_ARG )
|
|
|
3600 |
{
|
|
|
3601 |
DO_RTHG
|
|
|
3602 |
}
|
|
|
3603 |
|
|
|
3604 |
|
|
|
3605 |
/*************************************************************************/
|
|
|
3606 |
/* */
|
|
|
3607 |
/* RTG[]: Round To Grid */
|
|
|
3608 |
/* Opcode range: 0x18 */
|
|
|
3609 |
/* Stack: --> */
|
|
|
3610 |
/* */
|
|
|
3611 |
static void
|
|
|
3612 |
Ins_RTG( INS_ARG )
|
|
|
3613 |
{
|
|
|
3614 |
DO_RTG
|
|
|
3615 |
}
|
|
|
3616 |
|
|
|
3617 |
|
|
|
3618 |
/*************************************************************************/
|
|
|
3619 |
/* RTDG[]: Round To Double Grid */
|
|
|
3620 |
/* Opcode range: 0x3D */
|
|
|
3621 |
/* Stack: --> */
|
|
|
3622 |
/* */
|
|
|
3623 |
static void
|
|
|
3624 |
Ins_RTDG( INS_ARG )
|
|
|
3625 |
{
|
|
|
3626 |
DO_RTDG
|
|
|
3627 |
}
|
|
|
3628 |
|
|
|
3629 |
|
|
|
3630 |
/*************************************************************************/
|
|
|
3631 |
/* RUTG[]: Round Up To Grid */
|
|
|
3632 |
/* Opcode range: 0x7C */
|
|
|
3633 |
/* Stack: --> */
|
|
|
3634 |
/* */
|
|
|
3635 |
static void
|
|
|
3636 |
Ins_RUTG( INS_ARG )
|
|
|
3637 |
{
|
|
|
3638 |
DO_RUTG
|
|
|
3639 |
}
|
|
|
3640 |
|
|
|
3641 |
|
|
|
3642 |
/*************************************************************************/
|
|
|
3643 |
/* */
|
|
|
3644 |
/* RDTG[]: Round Down To Grid */
|
|
|
3645 |
/* Opcode range: 0x7D */
|
|
|
3646 |
/* Stack: --> */
|
|
|
3647 |
/* */
|
|
|
3648 |
static void
|
|
|
3649 |
Ins_RDTG( INS_ARG )
|
|
|
3650 |
{
|
|
|
3651 |
DO_RDTG
|
|
|
3652 |
}
|
|
|
3653 |
|
|
|
3654 |
|
|
|
3655 |
/*************************************************************************/
|
|
|
3656 |
/* */
|
|
|
3657 |
/* ROFF[]: Round OFF */
|
|
|
3658 |
/* Opcode range: 0x7A */
|
|
|
3659 |
/* Stack: --> */
|
|
|
3660 |
/* */
|
|
|
3661 |
static void
|
|
|
3662 |
Ins_ROFF( INS_ARG )
|
|
|
3663 |
{
|
|
|
3664 |
DO_ROFF
|
|
|
3665 |
}
|
|
|
3666 |
|
|
|
3667 |
|
|
|
3668 |
/*************************************************************************/
|
|
|
3669 |
/* */
|
|
|
3670 |
/* SROUND[]: Super ROUND */
|
|
|
3671 |
/* Opcode range: 0x76 */
|
|
|
3672 |
/* Stack: Eint8 --> */
|
|
|
3673 |
/* */
|
|
|
3674 |
static void
|
|
|
3675 |
Ins_SROUND( INS_ARG )
|
|
|
3676 |
{
|
|
|
3677 |
DO_SROUND
|
|
|
3678 |
}
|
|
|
3679 |
|
|
|
3680 |
|
|
|
3681 |
/*************************************************************************/
|
|
|
3682 |
/* */
|
|
|
3683 |
/* S45ROUND[]: Super ROUND 45 degrees */
|
|
|
3684 |
/* Opcode range: 0x77 */
|
|
|
3685 |
/* Stack: uint32 --> */
|
|
|
3686 |
/* */
|
|
|
3687 |
static void
|
|
|
3688 |
Ins_S45ROUND( INS_ARG )
|
|
|
3689 |
{
|
|
|
3690 |
DO_S45ROUND
|
|
|
3691 |
}
|
|
|
3692 |
|
|
|
3693 |
|
|
|
3694 |
/*************************************************************************/
|
|
|
3695 |
/* */
|
|
|
3696 |
/* SLOOP[]: Set LOOP variable */
|
|
|
3697 |
/* Opcode range: 0x17 */
|
|
|
3698 |
/* Stack: int32? --> */
|
|
|
3699 |
/* */
|
|
|
3700 |
static void
|
|
|
3701 |
Ins_SLOOP( INS_ARG )
|
|
|
3702 |
{
|
|
|
3703 |
DO_SLOOP
|
|
|
3704 |
}
|
|
|
3705 |
|
|
|
3706 |
|
|
|
3707 |
/*************************************************************************/
|
|
|
3708 |
/* */
|
|
|
3709 |
/* SMD[]: Set Minimum Distance */
|
|
|
3710 |
/* Opcode range: 0x1A */
|
|
|
3711 |
/* Stack: f26.6 --> */
|
|
|
3712 |
/* */
|
|
|
3713 |
static void
|
|
|
3714 |
Ins_SMD( INS_ARG )
|
|
|
3715 |
{
|
|
|
3716 |
DO_SMD
|
|
|
3717 |
}
|
|
|
3718 |
|
|
|
3719 |
|
|
|
3720 |
/*************************************************************************/
|
|
|
3721 |
/* */
|
|
|
3722 |
/* SCVTCI[]: Set Control Value Table Cut In */
|
|
|
3723 |
/* Opcode range: 0x1D */
|
|
|
3724 |
/* Stack: f26.6 --> */
|
|
|
3725 |
/* */
|
|
|
3726 |
static void
|
|
|
3727 |
Ins_SCVTCI( INS_ARG )
|
|
|
3728 |
{
|
|
|
3729 |
DO_SCVTCI
|
|
|
3730 |
}
|
|
|
3731 |
|
|
|
3732 |
|
|
|
3733 |
/*************************************************************************/
|
|
|
3734 |
/* */
|
|
|
3735 |
/* SSWCI[]: Set Single Width Cut In */
|
|
|
3736 |
/* Opcode range: 0x1E */
|
|
|
3737 |
/* Stack: f26.6 --> */
|
|
|
3738 |
/* */
|
|
|
3739 |
static void
|
|
|
3740 |
Ins_SSWCI( INS_ARG )
|
|
|
3741 |
{
|
|
|
3742 |
DO_SSWCI
|
|
|
3743 |
}
|
|
|
3744 |
|
|
|
3745 |
|
|
|
3746 |
/*************************************************************************/
|
|
|
3747 |
/* */
|
|
|
3748 |
/* SSW[]: Set Single Width */
|
|
|
3749 |
/* Opcode range: 0x1F */
|
|
|
3750 |
/* Stack: int32? --> */
|
|
|
3751 |
/* */
|
|
|
3752 |
static void
|
|
|
3753 |
Ins_SSW( INS_ARG )
|
|
|
3754 |
{
|
|
|
3755 |
DO_SSW
|
|
|
3756 |
}
|
|
|
3757 |
|
|
|
3758 |
|
|
|
3759 |
/*************************************************************************/
|
|
|
3760 |
/* */
|
|
|
3761 |
/* FLIPON[]: Set auto-FLIP to ON */
|
|
|
3762 |
/* Opcode range: 0x4D */
|
|
|
3763 |
/* Stack: --> */
|
|
|
3764 |
/* */
|
|
|
3765 |
static void
|
|
|
3766 |
Ins_FLIPON( INS_ARG )
|
|
|
3767 |
{
|
|
|
3768 |
DO_FLIPON
|
|
|
3769 |
}
|
|
|
3770 |
|
|
|
3771 |
|
|
|
3772 |
/*************************************************************************/
|
|
|
3773 |
/* */
|
|
|
3774 |
/* FLIPOFF[]: Set auto-FLIP to OFF */
|
|
|
3775 |
/* Opcode range: 0x4E */
|
|
|
3776 |
/* Stack: --> */
|
|
|
3777 |
/* */
|
|
|
3778 |
static void
|
|
|
3779 |
Ins_FLIPOFF( INS_ARG )
|
|
|
3780 |
{
|
|
|
3781 |
DO_FLIPOFF
|
|
|
3782 |
}
|
|
|
3783 |
|
|
|
3784 |
|
|
|
3785 |
/*************************************************************************/
|
|
|
3786 |
/* */
|
|
|
3787 |
/* SANGW[]: Set ANGle Weight */
|
|
|
3788 |
/* Opcode range: 0x7E */
|
|
|
3789 |
/* Stack: uint32 --> */
|
|
|
3790 |
/* */
|
|
|
3791 |
static void
|
|
|
3792 |
Ins_SANGW( INS_ARG )
|
|
|
3793 |
{
|
|
|
3794 |
/* instruction not supported anymore */
|
|
|
3795 |
}
|
|
|
3796 |
|
|
|
3797 |
|
|
|
3798 |
/*************************************************************************/
|
|
|
3799 |
/* */
|
|
|
3800 |
/* SDB[]: Set Delta Base */
|
|
|
3801 |
/* Opcode range: 0x5E */
|
|
|
3802 |
/* Stack: uint32 --> */
|
|
|
3803 |
/* */
|
|
|
3804 |
static void
|
|
|
3805 |
Ins_SDB( INS_ARG )
|
|
|
3806 |
{
|
|
|
3807 |
DO_SDB
|
|
|
3808 |
}
|
|
|
3809 |
|
|
|
3810 |
|
|
|
3811 |
/*************************************************************************/
|
|
|
3812 |
/* */
|
|
|
3813 |
/* SDS[]: Set Delta Shift */
|
|
|
3814 |
/* Opcode range: 0x5F */
|
|
|
3815 |
/* Stack: uint32 --> */
|
|
|
3816 |
/* */
|
|
|
3817 |
static void
|
|
|
3818 |
Ins_SDS( INS_ARG )
|
|
|
3819 |
{
|
|
|
3820 |
DO_SDS
|
|
|
3821 |
}
|
|
|
3822 |
|
|
|
3823 |
|
|
|
3824 |
/*************************************************************************/
|
|
|
3825 |
/* */
|
|
|
3826 |
/* MPPEM[]: Measure Pixel Per EM */
|
|
|
3827 |
/* Opcode range: 0x4B */
|
|
|
3828 |
/* Stack: --> Euint16 */
|
|
|
3829 |
/* */
|
|
|
3830 |
static void
|
|
|
3831 |
Ins_MPPEM( INS_ARG )
|
|
|
3832 |
{
|
|
|
3833 |
DO_MPPEM
|
|
|
3834 |
}
|
|
|
3835 |
|
|
|
3836 |
|
|
|
3837 |
/*************************************************************************/
|
|
|
3838 |
/* */
|
|
|
3839 |
/* MPS[]: Measure Point Size */
|
|
|
3840 |
/* Opcode range: 0x4C */
|
|
|
3841 |
/* Stack: --> Euint16 */
|
|
|
3842 |
/* */
|
|
|
3843 |
static void
|
|
|
3844 |
Ins_MPS( INS_ARG )
|
|
|
3845 |
{
|
|
|
3846 |
DO_MPS
|
|
|
3847 |
}
|
|
|
3848 |
|
|
|
3849 |
|
|
|
3850 |
/*************************************************************************/
|
|
|
3851 |
/* */
|
|
|
3852 |
/* DUP[]: DUPlicate the top stack's element */
|
|
|
3853 |
/* Opcode range: 0x20 */
|
|
|
3854 |
/* Stack: StkElt --> StkElt StkElt */
|
|
|
3855 |
/* */
|
|
|
3856 |
static void
|
|
|
3857 |
Ins_DUP( INS_ARG )
|
|
|
3858 |
{
|
|
|
3859 |
DO_DUP
|
|
|
3860 |
}
|
|
|
3861 |
|
|
|
3862 |
|
|
|
3863 |
/*************************************************************************/
|
|
|
3864 |
/* */
|
|
|
3865 |
/* POP[]: POP the stack's top element */
|
|
|
3866 |
/* Opcode range: 0x21 */
|
|
|
3867 |
/* Stack: StkElt --> */
|
|
|
3868 |
/* */
|
|
|
3869 |
static void
|
|
|
3870 |
Ins_POP( INS_ARG )
|
|
|
3871 |
{
|
|
|
3872 |
/* nothing to do */
|
|
|
3873 |
}
|
|
|
3874 |
|
|
|
3875 |
|
|
|
3876 |
/*************************************************************************/
|
|
|
3877 |
/* */
|
|
|
3878 |
/* CLEAR[]: CLEAR the entire stack */
|
|
|
3879 |
/* Opcode range: 0x22 */
|
|
|
3880 |
/* Stack: StkElt... --> */
|
|
|
3881 |
/* */
|
|
|
3882 |
static void
|
|
|
3883 |
Ins_CLEAR( INS_ARG )
|
|
|
3884 |
{
|
|
|
3885 |
DO_CLEAR
|
|
|
3886 |
}
|
|
|
3887 |
|
|
|
3888 |
|
|
|
3889 |
/*************************************************************************/
|
|
|
3890 |
/* */
|
|
|
3891 |
/* SWAP[]: SWAP the stack's top two elements */
|
|
|
3892 |
/* Opcode range: 0x23 */
|
|
|
3893 |
/* Stack: 2 * StkElt --> 2 * StkElt */
|
|
|
3894 |
/* */
|
|
|
3895 |
static void
|
|
|
3896 |
Ins_SWAP( INS_ARG )
|
|
|
3897 |
{
|
|
|
3898 |
DO_SWAP
|
|
|
3899 |
}
|
|
|
3900 |
|
|
|
3901 |
|
|
|
3902 |
/*************************************************************************/
|
|
|
3903 |
/* */
|
|
|
3904 |
/* DEPTH[]: return the stack DEPTH */
|
|
|
3905 |
/* Opcode range: 0x24 */
|
|
|
3906 |
/* Stack: --> uint32 */
|
|
|
3907 |
/* */
|
|
|
3908 |
static void
|
|
|
3909 |
Ins_DEPTH( INS_ARG )
|
|
|
3910 |
{
|
|
|
3911 |
DO_DEPTH
|
|
|
3912 |
}
|
|
|
3913 |
|
|
|
3914 |
|
|
|
3915 |
/*************************************************************************/
|
|
|
3916 |
/* */
|
|
|
3917 |
/* CINDEX[]: Copy INDEXed element */
|
|
|
3918 |
/* Opcode range: 0x25 */
|
|
|
3919 |
/* Stack: int32 --> StkElt */
|
|
|
3920 |
/* */
|
|
|
3921 |
static void
|
|
|
3922 |
Ins_CINDEX( INS_ARG )
|
|
|
3923 |
{
|
|
|
3924 |
DO_CINDEX
|
|
|
3925 |
}
|
|
|
3926 |
|
|
|
3927 |
|
|
|
3928 |
/*************************************************************************/
|
|
|
3929 |
/* */
|
|
|
3930 |
/* EIF[]: End IF */
|
|
|
3931 |
/* Opcode range: 0x59 */
|
|
|
3932 |
/* Stack: --> */
|
|
|
3933 |
/* */
|
|
|
3934 |
static void
|
|
|
3935 |
Ins_EIF( INS_ARG )
|
|
|
3936 |
{
|
|
|
3937 |
/* nothing to do */
|
|
|
3938 |
}
|
|
|
3939 |
|
|
|
3940 |
|
|
|
3941 |
/*************************************************************************/
|
|
|
3942 |
/* */
|
|
|
3943 |
/* JROT[]: Jump Relative On True */
|
|
|
3944 |
/* Opcode range: 0x78 */
|
|
|
3945 |
/* Stack: StkElt int32 --> */
|
|
|
3946 |
/* */
|
|
|
3947 |
static void
|
|
|
3948 |
Ins_JROT( INS_ARG )
|
|
|
3949 |
{
|
|
|
3950 |
DO_JROT
|
|
|
3951 |
}
|
|
|
3952 |
|
|
|
3953 |
|
|
|
3954 |
/*************************************************************************/
|
|
|
3955 |
/* */
|
|
|
3956 |
/* JMPR[]: JuMP Relative */
|
|
|
3957 |
/* Opcode range: 0x1C */
|
|
|
3958 |
/* Stack: int32 --> */
|
|
|
3959 |
/* */
|
|
|
3960 |
static void
|
|
|
3961 |
Ins_JMPR( INS_ARG )
|
|
|
3962 |
{
|
|
|
3963 |
DO_JMPR
|
|
|
3964 |
}
|
|
|
3965 |
|
|
|
3966 |
|
|
|
3967 |
/*************************************************************************/
|
|
|
3968 |
/* */
|
|
|
3969 |
/* JROF[]: Jump Relative On False */
|
|
|
3970 |
/* Opcode range: 0x79 */
|
|
|
3971 |
/* Stack: StkElt int32 --> */
|
|
|
3972 |
/* */
|
|
|
3973 |
static void
|
|
|
3974 |
Ins_JROF( INS_ARG )
|
|
|
3975 |
{
|
|
|
3976 |
DO_JROF
|
|
|
3977 |
}
|
|
|
3978 |
|
|
|
3979 |
|
|
|
3980 |
/*************************************************************************/
|
|
|
3981 |
/* */
|
|
|
3982 |
/* LT[]: Less Than */
|
|
|
3983 |
/* Opcode range: 0x50 */
|
|
|
3984 |
/* Stack: int32? int32? --> bool */
|
|
|
3985 |
/* */
|
|
|
3986 |
static void
|
|
|
3987 |
Ins_LT( INS_ARG )
|
|
|
3988 |
{
|
|
|
3989 |
DO_LT
|
|
|
3990 |
}
|
|
|
3991 |
|
|
|
3992 |
|
|
|
3993 |
/*************************************************************************/
|
|
|
3994 |
/* */
|
|
|
3995 |
/* LTEQ[]: Less Than or EQual */
|
|
|
3996 |
/* Opcode range: 0x51 */
|
|
|
3997 |
/* Stack: int32? int32? --> bool */
|
|
|
3998 |
/* */
|
|
|
3999 |
static void
|
|
|
4000 |
Ins_LTEQ( INS_ARG )
|
|
|
4001 |
{
|
|
|
4002 |
DO_LTEQ
|
|
|
4003 |
}
|
|
|
4004 |
|
|
|
4005 |
|
|
|
4006 |
/*************************************************************************/
|
|
|
4007 |
/* */
|
|
|
4008 |
/* GT[]: Greater Than */
|
|
|
4009 |
/* Opcode range: 0x52 */
|
|
|
4010 |
/* Stack: int32? int32? --> bool */
|
|
|
4011 |
/* */
|
|
|
4012 |
static void
|
|
|
4013 |
Ins_GT( INS_ARG )
|
|
|
4014 |
{
|
|
|
4015 |
DO_GT
|
|
|
4016 |
}
|
|
|
4017 |
|
|
|
4018 |
|
|
|
4019 |
/*************************************************************************/
|
|
|
4020 |
/* */
|
|
|
4021 |
/* GTEQ[]: Greater Than or EQual */
|
|
|
4022 |
/* Opcode range: 0x53 */
|
|
|
4023 |
/* Stack: int32? int32? --> bool */
|
|
|
4024 |
/* */
|
|
|
4025 |
static void
|
|
|
4026 |
Ins_GTEQ( INS_ARG )
|
|
|
4027 |
{
|
|
|
4028 |
DO_GTEQ
|
|
|
4029 |
}
|
|
|
4030 |
|
|
|
4031 |
|
|
|
4032 |
/*************************************************************************/
|
|
|
4033 |
/* */
|
|
|
4034 |
/* EQ[]: EQual */
|
|
|
4035 |
/* Opcode range: 0x54 */
|
|
|
4036 |
/* Stack: StkElt StkElt --> bool */
|
|
|
4037 |
/* */
|
|
|
4038 |
static void
|
|
|
4039 |
Ins_EQ( INS_ARG )
|
|
|
4040 |
{
|
|
|
4041 |
DO_EQ
|
|
|
4042 |
}
|
|
|
4043 |
|
|
|
4044 |
|
|
|
4045 |
/*************************************************************************/
|
|
|
4046 |
/* */
|
|
|
4047 |
/* NEQ[]: Not EQual */
|
|
|
4048 |
/* Opcode range: 0x55 */
|
|
|
4049 |
/* Stack: StkElt StkElt --> bool */
|
|
|
4050 |
/* */
|
|
|
4051 |
static void
|
|
|
4052 |
Ins_NEQ( INS_ARG )
|
|
|
4053 |
{
|
|
|
4054 |
DO_NEQ
|
|
|
4055 |
}
|
|
|
4056 |
|
|
|
4057 |
|
|
|
4058 |
/*************************************************************************/
|
|
|
4059 |
/* */
|
|
|
4060 |
/* ODD[]: Is ODD */
|
|
|
4061 |
/* Opcode range: 0x56 */
|
|
|
4062 |
/* Stack: f26.6 --> bool */
|
|
|
4063 |
/* */
|
|
|
4064 |
static void
|
|
|
4065 |
Ins_ODD( INS_ARG )
|
|
|
4066 |
{
|
|
|
4067 |
DO_ODD
|
|
|
4068 |
}
|
|
|
4069 |
|
|
|
4070 |
|
|
|
4071 |
/*************************************************************************/
|
|
|
4072 |
/* */
|
|
|
4073 |
/* EVEN[]: Is EVEN */
|
|
|
4074 |
/* Opcode range: 0x57 */
|
|
|
4075 |
/* Stack: f26.6 --> bool */
|
|
|
4076 |
/* */
|
|
|
4077 |
static void
|
|
|
4078 |
Ins_EVEN( INS_ARG )
|
|
|
4079 |
{
|
|
|
4080 |
DO_EVEN
|
|
|
4081 |
}
|
|
|
4082 |
|
|
|
4083 |
|
|
|
4084 |
/*************************************************************************/
|
|
|
4085 |
/* */
|
|
|
4086 |
/* AND[]: logical AND */
|
|
|
4087 |
/* Opcode range: 0x5A */
|
|
|
4088 |
/* Stack: uint32 uint32 --> uint32 */
|
|
|
4089 |
/* */
|
|
|
4090 |
static void
|
|
|
4091 |
Ins_AND( INS_ARG )
|
|
|
4092 |
{
|
|
|
4093 |
DO_AND
|
|
|
4094 |
}
|
|
|
4095 |
|
|
|
4096 |
|
|
|
4097 |
/*************************************************************************/
|
|
|
4098 |
/* */
|
|
|
4099 |
/* OR[]: logical OR */
|
|
|
4100 |
/* Opcode range: 0x5B */
|
|
|
4101 |
/* Stack: uint32 uint32 --> uint32 */
|
|
|
4102 |
/* */
|
|
|
4103 |
static void
|
|
|
4104 |
Ins_OR( INS_ARG )
|
|
|
4105 |
{
|
|
|
4106 |
DO_OR
|
|
|
4107 |
}
|
|
|
4108 |
|
|
|
4109 |
|
|
|
4110 |
/*************************************************************************/
|
|
|
4111 |
/* */
|
|
|
4112 |
/* NOT[]: logical NOT */
|
|
|
4113 |
/* Opcode range: 0x5C */
|
|
|
4114 |
/* Stack: StkElt --> uint32 */
|
|
|
4115 |
/* */
|
|
|
4116 |
static void
|
|
|
4117 |
Ins_NOT( INS_ARG )
|
|
|
4118 |
{
|
|
|
4119 |
DO_NOT
|
|
|
4120 |
}
|
|
|
4121 |
|
|
|
4122 |
|
|
|
4123 |
/*************************************************************************/
|
|
|
4124 |
/* */
|
|
|
4125 |
/* ADD[]: ADD */
|
|
|
4126 |
/* Opcode range: 0x60 */
|
|
|
4127 |
/* Stack: f26.6 f26.6 --> f26.6 */
|
|
|
4128 |
/* */
|
|
|
4129 |
static void
|
|
|
4130 |
Ins_ADD( INS_ARG )
|
|
|
4131 |
{
|
|
|
4132 |
DO_ADD
|
|
|
4133 |
}
|
|
|
4134 |
|
|
|
4135 |
|
|
|
4136 |
/*************************************************************************/
|
|
|
4137 |
/* */
|
|
|
4138 |
/* SUB[]: SUBtract */
|
|
|
4139 |
/* Opcode range: 0x61 */
|
|
|
4140 |
/* Stack: f26.6 f26.6 --> f26.6 */
|
|
|
4141 |
/* */
|
|
|
4142 |
static void
|
|
|
4143 |
Ins_SUB( INS_ARG )
|
|
|
4144 |
{
|
|
|
4145 |
DO_SUB
|
|
|
4146 |
}
|
|
|
4147 |
|
|
|
4148 |
|
|
|
4149 |
/*************************************************************************/
|
|
|
4150 |
/* */
|
|
|
4151 |
/* DIV[]: DIVide */
|
|
|
4152 |
/* Opcode range: 0x62 */
|
|
|
4153 |
/* Stack: f26.6 f26.6 --> f26.6 */
|
|
|
4154 |
/* */
|
|
|
4155 |
static void
|
|
|
4156 |
Ins_DIV( INS_ARG )
|
|
|
4157 |
{
|
|
|
4158 |
DO_DIV
|
|
|
4159 |
}
|
|
|
4160 |
|
|
|
4161 |
|
|
|
4162 |
/*************************************************************************/
|
|
|
4163 |
/* */
|
|
|
4164 |
/* MUL[]: MULtiply */
|
|
|
4165 |
/* Opcode range: 0x63 */
|
|
|
4166 |
/* Stack: f26.6 f26.6 --> f26.6 */
|
|
|
4167 |
/* */
|
|
|
4168 |
static void
|
|
|
4169 |
Ins_MUL( INS_ARG )
|
|
|
4170 |
{
|
|
|
4171 |
DO_MUL
|
|
|
4172 |
}
|
|
|
4173 |
|
|
|
4174 |
|
|
|
4175 |
/*************************************************************************/
|
|
|
4176 |
/* */
|
|
|
4177 |
/* ABS[]: ABSolute value */
|
|
|
4178 |
/* Opcode range: 0x64 */
|
|
|
4179 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4180 |
/* */
|
|
|
4181 |
static void
|
|
|
4182 |
Ins_ABS( INS_ARG )
|
|
|
4183 |
{
|
|
|
4184 |
DO_ABS
|
|
|
4185 |
}
|
|
|
4186 |
|
|
|
4187 |
|
|
|
4188 |
/*************************************************************************/
|
|
|
4189 |
/* */
|
|
|
4190 |
/* NEG[]: NEGate */
|
|
|
4191 |
/* Opcode range: 0x65 */
|
|
|
4192 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4193 |
/* */
|
|
|
4194 |
static void
|
|
|
4195 |
Ins_NEG( INS_ARG )
|
|
|
4196 |
{
|
|
|
4197 |
DO_NEG
|
|
|
4198 |
}
|
|
|
4199 |
|
|
|
4200 |
|
|
|
4201 |
/*************************************************************************/
|
|
|
4202 |
/* */
|
|
|
4203 |
/* FLOOR[]: FLOOR */
|
|
|
4204 |
/* Opcode range: 0x66 */
|
|
|
4205 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4206 |
/* */
|
|
|
4207 |
static void
|
|
|
4208 |
Ins_FLOOR( INS_ARG )
|
|
|
4209 |
{
|
|
|
4210 |
DO_FLOOR
|
|
|
4211 |
}
|
|
|
4212 |
|
|
|
4213 |
|
|
|
4214 |
/*************************************************************************/
|
|
|
4215 |
/* */
|
|
|
4216 |
/* CEILING[]: CEILING */
|
|
|
4217 |
/* Opcode range: 0x67 */
|
|
|
4218 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4219 |
/* */
|
|
|
4220 |
static void
|
|
|
4221 |
Ins_CEILING( INS_ARG )
|
|
|
4222 |
{
|
|
|
4223 |
DO_CEILING
|
|
|
4224 |
}
|
|
|
4225 |
|
|
|
4226 |
|
|
|
4227 |
/*************************************************************************/
|
|
|
4228 |
/* */
|
|
|
4229 |
/* RS[]: Read Store */
|
|
|
4230 |
/* Opcode range: 0x43 */
|
|
|
4231 |
/* Stack: uint32 --> uint32 */
|
|
|
4232 |
/* */
|
|
|
4233 |
static void
|
|
|
4234 |
Ins_RS( INS_ARG )
|
|
|
4235 |
{
|
|
|
4236 |
DO_RS
|
|
|
4237 |
}
|
|
|
4238 |
|
|
|
4239 |
|
|
|
4240 |
/*************************************************************************/
|
|
|
4241 |
/* */
|
|
|
4242 |
/* WS[]: Write Store */
|
|
|
4243 |
/* Opcode range: 0x42 */
|
|
|
4244 |
/* Stack: uint32 uint32 --> */
|
|
|
4245 |
/* */
|
|
|
4246 |
static void
|
|
|
4247 |
Ins_WS( INS_ARG )
|
|
|
4248 |
{
|
|
|
4249 |
DO_WS
|
|
|
4250 |
}
|
|
|
4251 |
|
|
|
4252 |
|
|
|
4253 |
/*************************************************************************/
|
|
|
4254 |
/* */
|
|
|
4255 |
/* WCVTP[]: Write CVT in Pixel units */
|
|
|
4256 |
/* Opcode range: 0x44 */
|
|
|
4257 |
/* Stack: f26.6 uint32 --> */
|
|
|
4258 |
/* */
|
|
|
4259 |
static void
|
|
|
4260 |
Ins_WCVTP( INS_ARG )
|
|
|
4261 |
{
|
|
|
4262 |
DO_WCVTP
|
|
|
4263 |
}
|
|
|
4264 |
|
|
|
4265 |
|
|
|
4266 |
/*************************************************************************/
|
|
|
4267 |
/* */
|
|
|
4268 |
/* WCVTF[]: Write CVT in Funits */
|
|
|
4269 |
/* Opcode range: 0x70 */
|
|
|
4270 |
/* Stack: uint32 uint32 --> */
|
|
|
4271 |
/* */
|
|
|
4272 |
static void
|
|
|
4273 |
Ins_WCVTF( INS_ARG )
|
|
|
4274 |
{
|
|
|
4275 |
DO_WCVTF
|
|
|
4276 |
}
|
|
|
4277 |
|
|
|
4278 |
|
|
|
4279 |
/*************************************************************************/
|
|
|
4280 |
/* */
|
|
|
4281 |
/* RCVT[]: Read CVT */
|
|
|
4282 |
/* Opcode range: 0x45 */
|
|
|
4283 |
/* Stack: uint32 --> f26.6 */
|
|
|
4284 |
/* */
|
|
|
4285 |
static void
|
|
|
4286 |
Ins_RCVT( INS_ARG )
|
|
|
4287 |
{
|
|
|
4288 |
DO_RCVT
|
|
|
4289 |
}
|
|
|
4290 |
|
|
|
4291 |
|
|
|
4292 |
/*************************************************************************/
|
|
|
4293 |
/* */
|
|
|
4294 |
/* AA[]: Adjust Angle */
|
|
|
4295 |
/* Opcode range: 0x7F */
|
|
|
4296 |
/* Stack: uint32 --> */
|
|
|
4297 |
/* */
|
|
|
4298 |
static void
|
|
|
4299 |
Ins_AA( INS_ARG )
|
|
|
4300 |
{
|
|
|
4301 |
/* intentionally no longer supported */
|
|
|
4302 |
}
|
|
|
4303 |
|
|
|
4304 |
|
|
|
4305 |
/*************************************************************************/
|
|
|
4306 |
/* */
|
|
|
4307 |
/* DEBUG[]: DEBUG. Unsupported. */
|
|
|
4308 |
/* Opcode range: 0x4F */
|
|
|
4309 |
/* Stack: uint32 --> */
|
|
|
4310 |
/* */
|
|
|
4311 |
/* Note: The original instruction pops a value from the stack. */
|
|
|
4312 |
/* */
|
|
|
4313 |
static void
|
|
|
4314 |
Ins_DEBUG( INS_ARG )
|
|
|
4315 |
{
|
|
|
4316 |
DO_DEBUG
|
|
|
4317 |
}
|
|
|
4318 |
|
|
|
4319 |
|
|
|
4320 |
/*************************************************************************/
|
|
|
4321 |
/* */
|
|
|
4322 |
/* ROUND[ab]: ROUND value */
|
|
|
4323 |
/* Opcode range: 0x68-0x6B */
|
|
|
4324 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4325 |
/* */
|
|
|
4326 |
static void
|
|
|
4327 |
Ins_ROUND( INS_ARG )
|
|
|
4328 |
{
|
|
|
4329 |
DO_ROUND
|
|
|
4330 |
}
|
|
|
4331 |
|
|
|
4332 |
|
|
|
4333 |
/*************************************************************************/
|
|
|
4334 |
/* */
|
|
|
4335 |
/* NROUND[ab]: No ROUNDing of value */
|
|
|
4336 |
/* Opcode range: 0x6C-0x6F */
|
|
|
4337 |
/* Stack: f26.6 --> f26.6 */
|
|
|
4338 |
/* */
|
|
|
4339 |
static void
|
|
|
4340 |
Ins_NROUND( INS_ARG )
|
|
|
4341 |
{
|
|
|
4342 |
DO_NROUND
|
|
|
4343 |
}
|
|
|
4344 |
|
|
|
4345 |
|
|
|
4346 |
/*************************************************************************/
|
|
|
4347 |
/* */
|
|
|
4348 |
/* MAX[]: MAXimum */
|
|
|
4349 |
/* Opcode range: 0x68 */
|
|
|
4350 |
/* Stack: int32? int32? --> int32 */
|
|
|
4351 |
/* */
|
|
|
4352 |
static void
|
|
|
4353 |
Ins_MAX( INS_ARG )
|
|
|
4354 |
{
|
|
|
4355 |
DO_MAX
|
|
|
4356 |
}
|
|
|
4357 |
|
|
|
4358 |
|
|
|
4359 |
/*************************************************************************/
|
|
|
4360 |
/* */
|
|
|
4361 |
/* MIN[]: MINimum */
|
|
|
4362 |
/* Opcode range: 0x69 */
|
|
|
4363 |
/* Stack: int32? int32? --> int32 */
|
|
|
4364 |
/* */
|
|
|
4365 |
static void
|
|
|
4366 |
Ins_MIN( INS_ARG )
|
|
|
4367 |
{
|
|
|
4368 |
DO_MIN
|
|
|
4369 |
}
|
|
|
4370 |
|
|
|
4371 |
|
|
|
4372 |
#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */
|
|
|
4373 |
|
|
|
4374 |
|
|
|
4375 |
/*************************************************************************/
|
|
|
4376 |
/* */
|
|
|
4377 |
/* The following functions are called as is within the switch statement. */
|
|
|
4378 |
/* */
|
|
|
4379 |
/*************************************************************************/
|
|
|
4380 |
|
|
|
4381 |
|
|
|
4382 |
/*************************************************************************/
|
|
|
4383 |
/* */
|
|
|
4384 |
/* MINDEX[]: Move INDEXed element */
|
|
|
4385 |
/* Opcode range: 0x26 */
|
|
|
4386 |
/* Stack: int32? --> StkElt */
|
|
|
4387 |
/* */
|
|
|
4388 |
static void
|
|
|
4389 |
Ins_MINDEX( INS_ARG )
|
|
|
4390 |
{
|
|
|
4391 |
FT_Long L, K;
|
|
|
4392 |
|
|
|
4393 |
|
|
|
4394 |
L = args[0];
|
|
|
4395 |
|
|
|
4396 |
if ( L <= 0 || L > CUR.args )
|
|
|
4397 |
{
|
|
|
4398 |
if ( CUR.pedantic_hinting )
|
|
|
4399 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
4400 |
}
|
|
|
4401 |
else
|
|
|
4402 |
{
|
|
|
4403 |
K = CUR.stack[CUR.args - L];
|
|
|
4404 |
|
|
|
4405 |
FT_ARRAY_MOVE( &CUR.stack[CUR.args - L ],
|
|
|
4406 |
&CUR.stack[CUR.args - L + 1],
|
|
|
4407 |
( L - 1 ) );
|
|
|
4408 |
|
|
|
4409 |
CUR.stack[CUR.args - 1] = K;
|
|
|
4410 |
}
|
|
|
4411 |
}
|
|
|
4412 |
|
|
|
4413 |
|
|
|
4414 |
/*************************************************************************/
|
|
|
4415 |
/* */
|
|
|
4416 |
/* ROLL[]: ROLL top three elements */
|
|
|
4417 |
/* Opcode range: 0x8A */
|
|
|
4418 |
/* Stack: 3 * StkElt --> 3 * StkElt */
|
|
|
4419 |
/* */
|
|
|
4420 |
static void
|
|
|
4421 |
Ins_ROLL( INS_ARG )
|
|
|
4422 |
{
|
|
|
4423 |
FT_Long A, B, C;
|
|
|
4424 |
|
|
|
4425 |
FT_UNUSED_EXEC;
|
|
|
4426 |
|
|
|
4427 |
|
|
|
4428 |
A = args[2];
|
|
|
4429 |
B = args[1];
|
|
|
4430 |
C = args[0];
|
|
|
4431 |
|
|
|
4432 |
args[2] = C;
|
|
|
4433 |
args[1] = A;
|
|
|
4434 |
args[0] = B;
|
|
|
4435 |
}
|
|
|
4436 |
|
|
|
4437 |
|
|
|
4438 |
/*************************************************************************/
|
|
|
4439 |
/* */
|
|
|
4440 |
/* MANAGING THE FLOW OF CONTROL */
|
|
|
4441 |
/* */
|
|
|
4442 |
/* Instructions appear in the specification's order. */
|
|
|
4443 |
/* */
|
|
|
4444 |
/*************************************************************************/
|
|
|
4445 |
|
|
|
4446 |
|
|
|
4447 |
static FT_Bool
|
|
|
4448 |
SkipCode( EXEC_OP )
|
|
|
4449 |
{
|
|
|
4450 |
CUR.IP += CUR.length;
|
|
|
4451 |
|
|
|
4452 |
if ( CUR.IP < CUR.codeSize )
|
|
|
4453 |
{
|
|
|
4454 |
CUR.opcode = CUR.code[CUR.IP];
|
|
|
4455 |
|
|
|
4456 |
CUR.length = opcode_length[CUR.opcode];
|
|
|
4457 |
if ( CUR.length < 0 )
|
|
|
4458 |
{
|
|
|
4459 |
if ( CUR.IP + 1 > CUR.codeSize )
|
|
|
4460 |
goto Fail_Overflow;
|
|
|
4461 |
CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1];
|
|
|
4462 |
}
|
|
|
4463 |
|
|
|
4464 |
if ( CUR.IP + CUR.length <= CUR.codeSize )
|
|
|
4465 |
return SUCCESS;
|
|
|
4466 |
}
|
|
|
4467 |
|
|
|
4468 |
Fail_Overflow:
|
|
|
4469 |
CUR.error = TT_Err_Code_Overflow;
|
|
|
4470 |
return FAILURE;
|
|
|
4471 |
}
|
|
|
4472 |
|
|
|
4473 |
|
|
|
4474 |
/*************************************************************************/
|
|
|
4475 |
/* */
|
|
|
4476 |
/* IF[]: IF test */
|
|
|
4477 |
/* Opcode range: 0x58 */
|
|
|
4478 |
/* Stack: StkElt --> */
|
|
|
4479 |
/* */
|
|
|
4480 |
static void
|
|
|
4481 |
Ins_IF( INS_ARG )
|
|
|
4482 |
{
|
|
|
4483 |
FT_Int nIfs;
|
|
|
4484 |
FT_Bool Out;
|
|
|
4485 |
|
|
|
4486 |
|
|
|
4487 |
if ( args[0] != 0 )
|
|
|
4488 |
return;
|
|
|
4489 |
|
|
|
4490 |
nIfs = 1;
|
|
|
4491 |
Out = 0;
|
|
|
4492 |
|
|
|
4493 |
do
|
|
|
4494 |
{
|
|
|
4495 |
if ( SKIP_Code() == FAILURE )
|
|
|
4496 |
return;
|
|
|
4497 |
|
|
|
4498 |
switch ( CUR.opcode )
|
|
|
4499 |
{
|
|
|
4500 |
case 0x58: /* IF */
|
|
|
4501 |
nIfs++;
|
|
|
4502 |
break;
|
|
|
4503 |
|
|
|
4504 |
case 0x1B: /* ELSE */
|
|
|
4505 |
Out = FT_BOOL( nIfs == 1 );
|
|
|
4506 |
break;
|
|
|
4507 |
|
|
|
4508 |
case 0x59: /* EIF */
|
|
|
4509 |
nIfs--;
|
|
|
4510 |
Out = FT_BOOL( nIfs == 0 );
|
|
|
4511 |
break;
|
|
|
4512 |
}
|
|
|
4513 |
} while ( Out == 0 );
|
|
|
4514 |
}
|
|
|
4515 |
|
|
|
4516 |
|
|
|
4517 |
/*************************************************************************/
|
|
|
4518 |
/* */
|
|
|
4519 |
/* ELSE[]: ELSE */
|
|
|
4520 |
/* Opcode range: 0x1B */
|
|
|
4521 |
/* Stack: --> */
|
|
|
4522 |
/* */
|
|
|
4523 |
static void
|
|
|
4524 |
Ins_ELSE( INS_ARG )
|
|
|
4525 |
{
|
|
|
4526 |
FT_Int nIfs;
|
|
|
4527 |
|
|
|
4528 |
FT_UNUSED_ARG;
|
|
|
4529 |
|
|
|
4530 |
|
|
|
4531 |
nIfs = 1;
|
|
|
4532 |
|
|
|
4533 |
do
|
|
|
4534 |
{
|
|
|
4535 |
if ( SKIP_Code() == FAILURE )
|
|
|
4536 |
return;
|
|
|
4537 |
|
|
|
4538 |
switch ( CUR.opcode )
|
|
|
4539 |
{
|
|
|
4540 |
case 0x58: /* IF */
|
|
|
4541 |
nIfs++;
|
|
|
4542 |
break;
|
|
|
4543 |
|
|
|
4544 |
case 0x59: /* EIF */
|
|
|
4545 |
nIfs--;
|
|
|
4546 |
break;
|
|
|
4547 |
}
|
|
|
4548 |
} while ( nIfs != 0 );
|
|
|
4549 |
}
|
|
|
4550 |
|
|
|
4551 |
|
|
|
4552 |
/*************************************************************************/
|
|
|
4553 |
/* */
|
|
|
4554 |
/* DEFINING AND USING FUNCTIONS AND INSTRUCTIONS */
|
|
|
4555 |
/* */
|
|
|
4556 |
/* Instructions appear in the specification's order. */
|
|
|
4557 |
/* */
|
|
|
4558 |
/*************************************************************************/
|
|
|
4559 |
|
|
|
4560 |
|
|
|
4561 |
/*************************************************************************/
|
|
|
4562 |
/* */
|
|
|
4563 |
/* FDEF[]: Function DEFinition */
|
|
|
4564 |
/* Opcode range: 0x2C */
|
|
|
4565 |
/* Stack: uint32 --> */
|
|
|
4566 |
/* */
|
|
|
4567 |
static void
|
|
|
4568 |
Ins_FDEF( INS_ARG )
|
|
|
4569 |
{
|
|
|
4570 |
FT_ULong n;
|
|
|
4571 |
TT_DefRecord* rec;
|
|
|
4572 |
TT_DefRecord* limit;
|
|
|
4573 |
|
|
|
4574 |
|
|
|
4575 |
/* some font programs are broken enough to redefine functions! */
|
|
|
4576 |
/* We will then parse the current table. */
|
|
|
4577 |
|
|
|
4578 |
rec = CUR.FDefs;
|
|
|
4579 |
limit = rec + CUR.numFDefs;
|
|
|
4580 |
n = args[0];
|
|
|
4581 |
|
|
|
4582 |
for ( ; rec < limit; rec++ )
|
|
|
4583 |
{
|
|
|
4584 |
if ( rec->opc == n )
|
|
|
4585 |
break;
|
|
|
4586 |
}
|
|
|
4587 |
|
|
|
4588 |
if ( rec == limit )
|
|
|
4589 |
{
|
|
|
4590 |
/* check that there is enough room for new functions */
|
|
|
4591 |
if ( CUR.numFDefs >= CUR.maxFDefs )
|
|
|
4592 |
{
|
|
|
4593 |
CUR.error = TT_Err_Too_Many_Function_Defs;
|
|
|
4594 |
return;
|
|
|
4595 |
}
|
|
|
4596 |
CUR.numFDefs++;
|
|
|
4597 |
}
|
|
|
4598 |
|
|
|
4599 |
/* Although FDEF takes unsigned 32-bit integer, */
|
|
|
4600 |
/* func # must be within unsigned 16-bit integer */
|
|
|
4601 |
if ( n > 0xFFFFU )
|
|
|
4602 |
{
|
|
|
4603 |
CUR.error = TT_Err_Too_Many_Function_Defs;
|
|
|
4604 |
return;
|
|
|
4605 |
}
|
|
|
4606 |
|
|
|
4607 |
rec->range = CUR.curRange;
|
|
|
4608 |
rec->opc = (FT_UInt16)n;
|
|
|
4609 |
rec->start = CUR.IP + 1;
|
|
|
4610 |
rec->active = TRUE;
|
|
|
4611 |
|
|
|
4612 |
if ( n > CUR.maxFunc )
|
|
|
4613 |
CUR.maxFunc = (FT_UInt16)n;
|
|
|
4614 |
|
|
|
4615 |
/* Now skip the whole function definition. */
|
|
|
4616 |
/* We don't allow nested IDEFS & FDEFs. */
|
|
|
4617 |
|
|
|
4618 |
while ( SKIP_Code() == SUCCESS )
|
|
|
4619 |
{
|
|
|
4620 |
switch ( CUR.opcode )
|
|
|
4621 |
{
|
|
|
4622 |
case 0x89: /* IDEF */
|
|
|
4623 |
case 0x2C: /* FDEF */
|
|
|
4624 |
CUR.error = TT_Err_Nested_DEFS;
|
|
|
4625 |
return;
|
|
|
4626 |
|
|
|
4627 |
case 0x2D: /* ENDF */
|
|
|
4628 |
return;
|
|
|
4629 |
}
|
|
|
4630 |
}
|
|
|
4631 |
}
|
|
|
4632 |
|
|
|
4633 |
|
|
|
4634 |
/*************************************************************************/
|
|
|
4635 |
/* */
|
|
|
4636 |
/* ENDF[]: END Function definition */
|
|
|
4637 |
/* Opcode range: 0x2D */
|
|
|
4638 |
/* Stack: --> */
|
|
|
4639 |
/* */
|
|
|
4640 |
static void
|
|
|
4641 |
Ins_ENDF( INS_ARG )
|
|
|
4642 |
{
|
|
|
4643 |
TT_CallRec* pRec;
|
|
|
4644 |
|
|
|
4645 |
FT_UNUSED_ARG;
|
|
|
4646 |
|
|
|
4647 |
|
|
|
4648 |
if ( CUR.callTop <= 0 ) /* We encountered an ENDF without a call */
|
|
|
4649 |
{
|
|
|
4650 |
CUR.error = TT_Err_ENDF_In_Exec_Stream;
|
|
|
4651 |
return;
|
|
|
4652 |
}
|
|
|
4653 |
|
|
|
4654 |
CUR.callTop--;
|
|
|
4655 |
|
|
|
4656 |
pRec = &CUR.callStack[CUR.callTop];
|
|
|
4657 |
|
|
|
4658 |
pRec->Cur_Count--;
|
|
|
4659 |
|
|
|
4660 |
CUR.step_ins = FALSE;
|
|
|
4661 |
|
|
|
4662 |
if ( pRec->Cur_Count > 0 )
|
|
|
4663 |
{
|
|
|
4664 |
CUR.callTop++;
|
|
|
4665 |
CUR.IP = pRec->Cur_Restart;
|
|
|
4666 |
}
|
|
|
4667 |
else
|
|
|
4668 |
/* Loop through the current function */
|
|
|
4669 |
INS_Goto_CodeRange( pRec->Caller_Range,
|
|
|
4670 |
pRec->Caller_IP );
|
|
|
4671 |
|
|
|
4672 |
/* Exit the current call frame. */
|
|
|
4673 |
|
|
|
4674 |
/* NOTE: If the last instruction of a program is a */
|
|
|
4675 |
/* CALL or LOOPCALL, the return address is */
|
|
|
4676 |
/* always out of the code range. This is a */
|
|
|
4677 |
/* valid address, and it is why we do not test */
|
|
|
4678 |
/* the result of Ins_Goto_CodeRange() here! */
|
|
|
4679 |
}
|
|
|
4680 |
|
|
|
4681 |
|
|
|
4682 |
/*************************************************************************/
|
|
|
4683 |
/* */
|
|
|
4684 |
/* CALL[]: CALL function */
|
|
|
4685 |
/* Opcode range: 0x2B */
|
|
|
4686 |
/* Stack: uint32? --> */
|
|
|
4687 |
/* */
|
|
|
4688 |
static void
|
|
|
4689 |
Ins_CALL( INS_ARG )
|
|
|
4690 |
{
|
|
|
4691 |
FT_ULong F;
|
|
|
4692 |
TT_CallRec* pCrec;
|
|
|
4693 |
TT_DefRecord* def;
|
|
|
4694 |
|
|
|
4695 |
|
|
|
4696 |
/* first of all, check the index */
|
|
|
4697 |
|
|
|
4698 |
F = args[0];
|
|
|
4699 |
if ( BOUNDSL( F, CUR.maxFunc + 1 ) )
|
|
|
4700 |
goto Fail;
|
|
|
4701 |
|
|
|
4702 |
/* Except for some old Apple fonts, all functions in a TrueType */
|
|
|
4703 |
/* font are defined in increasing order, starting from 0. This */
|
|
|
4704 |
/* means that we normally have */
|
|
|
4705 |
/* */
|
|
|
4706 |
/* CUR.maxFunc+1 == CUR.numFDefs */
|
|
|
4707 |
/* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */
|
|
|
4708 |
/* */
|
|
|
4709 |
/* If this isn't true, we need to look up the function table. */
|
|
|
4710 |
|
|
|
4711 |
def = CUR.FDefs + F;
|
|
|
4712 |
if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F )
|
|
|
4713 |
{
|
|
|
4714 |
/* look up the FDefs table */
|
|
|
4715 |
TT_DefRecord* limit;
|
|
|
4716 |
|
|
|
4717 |
|
|
|
4718 |
def = CUR.FDefs;
|
|
|
4719 |
limit = def + CUR.numFDefs;
|
|
|
4720 |
|
|
|
4721 |
while ( def < limit && def->opc != F )
|
|
|
4722 |
def++;
|
|
|
4723 |
|
|
|
4724 |
if ( def == limit )
|
|
|
4725 |
goto Fail;
|
|
|
4726 |
}
|
|
|
4727 |
|
|
|
4728 |
/* check that the function is active */
|
|
|
4729 |
if ( !def->active )
|
|
|
4730 |
goto Fail;
|
|
|
4731 |
|
|
|
4732 |
/* check the call stack */
|
|
|
4733 |
if ( CUR.callTop >= CUR.callSize )
|
|
|
4734 |
{
|
|
|
4735 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
4736 |
return;
|
|
|
4737 |
}
|
|
|
4738 |
|
|
|
4739 |
pCrec = CUR.callStack + CUR.callTop;
|
|
|
4740 |
|
|
|
4741 |
pCrec->Caller_Range = CUR.curRange;
|
|
|
4742 |
pCrec->Caller_IP = CUR.IP + 1;
|
|
|
4743 |
pCrec->Cur_Count = 1;
|
|
|
4744 |
pCrec->Cur_Restart = def->start;
|
|
|
4745 |
|
|
|
4746 |
CUR.callTop++;
|
|
|
4747 |
|
|
|
4748 |
INS_Goto_CodeRange( def->range,
|
|
|
4749 |
def->start );
|
|
|
4750 |
|
|
|
4751 |
CUR.step_ins = FALSE;
|
|
|
4752 |
return;
|
|
|
4753 |
|
|
|
4754 |
Fail:
|
|
|
4755 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
4756 |
}
|
|
|
4757 |
|
|
|
4758 |
|
|
|
4759 |
/*************************************************************************/
|
|
|
4760 |
/* */
|
|
|
4761 |
/* LOOPCALL[]: LOOP and CALL function */
|
|
|
4762 |
/* Opcode range: 0x2A */
|
|
|
4763 |
/* Stack: uint32? Eint16? --> */
|
|
|
4764 |
/* */
|
|
|
4765 |
static void
|
|
|
4766 |
Ins_LOOPCALL( INS_ARG )
|
|
|
4767 |
{
|
|
|
4768 |
FT_ULong F;
|
|
|
4769 |
TT_CallRec* pCrec;
|
|
|
4770 |
TT_DefRecord* def;
|
|
|
4771 |
|
|
|
4772 |
|
|
|
4773 |
/* first of all, check the index */
|
|
|
4774 |
F = args[1];
|
|
|
4775 |
if ( BOUNDSL( F, CUR.maxFunc + 1 ) )
|
|
|
4776 |
goto Fail;
|
|
|
4777 |
|
|
|
4778 |
/* Except for some old Apple fonts, all functions in a TrueType */
|
|
|
4779 |
/* font are defined in increasing order, starting from 0. This */
|
|
|
4780 |
/* means that we normally have */
|
|
|
4781 |
/* */
|
|
|
4782 |
/* CUR.maxFunc+1 == CUR.numFDefs */
|
|
|
4783 |
/* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */
|
|
|
4784 |
/* */
|
|
|
4785 |
/* If this isn't true, we need to look up the function table. */
|
|
|
4786 |
|
|
|
4787 |
def = CUR.FDefs + F;
|
|
|
4788 |
if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F )
|
|
|
4789 |
{
|
|
|
4790 |
/* look up the FDefs table */
|
|
|
4791 |
TT_DefRecord* limit;
|
|
|
4792 |
|
|
|
4793 |
|
|
|
4794 |
def = CUR.FDefs;
|
|
|
4795 |
limit = def + CUR.numFDefs;
|
|
|
4796 |
|
|
|
4797 |
while ( def < limit && def->opc != F )
|
|
|
4798 |
def++;
|
|
|
4799 |
|
|
|
4800 |
if ( def == limit )
|
|
|
4801 |
goto Fail;
|
|
|
4802 |
}
|
|
|
4803 |
|
|
|
4804 |
/* check that the function is active */
|
|
|
4805 |
if ( !def->active )
|
|
|
4806 |
goto Fail;
|
|
|
4807 |
|
|
|
4808 |
/* check stack */
|
|
|
4809 |
if ( CUR.callTop >= CUR.callSize )
|
|
|
4810 |
{
|
|
|
4811 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
4812 |
return;
|
|
|
4813 |
}
|
|
|
4814 |
|
|
|
4815 |
if ( args[0] > 0 )
|
|
|
4816 |
{
|
|
|
4817 |
pCrec = CUR.callStack + CUR.callTop;
|
|
|
4818 |
|
|
|
4819 |
pCrec->Caller_Range = CUR.curRange;
|
|
|
4820 |
pCrec->Caller_IP = CUR.IP + 1;
|
|
|
4821 |
pCrec->Cur_Count = (FT_Int)args[0];
|
|
|
4822 |
pCrec->Cur_Restart = def->start;
|
|
|
4823 |
|
|
|
4824 |
CUR.callTop++;
|
|
|
4825 |
|
|
|
4826 |
INS_Goto_CodeRange( def->range, def->start );
|
|
|
4827 |
|
|
|
4828 |
CUR.step_ins = FALSE;
|
|
|
4829 |
}
|
|
|
4830 |
return;
|
|
|
4831 |
|
|
|
4832 |
Fail:
|
|
|
4833 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
4834 |
}
|
|
|
4835 |
|
|
|
4836 |
|
|
|
4837 |
/*************************************************************************/
|
|
|
4838 |
/* */
|
|
|
4839 |
/* IDEF[]: Instruction DEFinition */
|
|
|
4840 |
/* Opcode range: 0x89 */
|
|
|
4841 |
/* Stack: Eint8 --> */
|
|
|
4842 |
/* */
|
|
|
4843 |
static void
|
|
|
4844 |
Ins_IDEF( INS_ARG )
|
|
|
4845 |
{
|
|
|
4846 |
TT_DefRecord* def;
|
|
|
4847 |
TT_DefRecord* limit;
|
|
|
4848 |
|
|
|
4849 |
|
|
|
4850 |
/* First of all, look for the same function in our table */
|
|
|
4851 |
|
|
|
4852 |
def = CUR.IDefs;
|
|
|
4853 |
limit = def + CUR.numIDefs;
|
|
|
4854 |
|
|
|
4855 |
for ( ; def < limit; def++ )
|
|
|
4856 |
if ( def->opc == (FT_ULong)args[0] )
|
|
|
4857 |
break;
|
|
|
4858 |
|
|
|
4859 |
if ( def == limit )
|
|
|
4860 |
{
|
|
|
4861 |
/* check that there is enough room for a new instruction */
|
|
|
4862 |
if ( CUR.numIDefs >= CUR.maxIDefs )
|
|
|
4863 |
{
|
|
|
4864 |
CUR.error = TT_Err_Too_Many_Instruction_Defs;
|
|
|
4865 |
return;
|
|
|
4866 |
}
|
|
|
4867 |
CUR.numIDefs++;
|
|
|
4868 |
}
|
|
|
4869 |
|
|
|
4870 |
/* opcode must be unsigned 8-bit integer */
|
|
|
4871 |
if ( 0 > args[0] || args[0] > 0x00FF )
|
|
|
4872 |
{
|
|
|
4873 |
CUR.error = TT_Err_Too_Many_Instruction_Defs;
|
|
|
4874 |
return;
|
|
|
4875 |
}
|
|
|
4876 |
|
|
|
4877 |
def->opc = (FT_Byte)args[0];
|
|
|
4878 |
def->start = CUR.IP + 1;
|
|
|
4879 |
def->range = CUR.curRange;
|
|
|
4880 |
def->active = TRUE;
|
|
|
4881 |
|
|
|
4882 |
if ( (FT_ULong)args[0] > CUR.maxIns )
|
|
|
4883 |
CUR.maxIns = (FT_Byte)args[0];
|
|
|
4884 |
|
|
|
4885 |
/* Now skip the whole function definition. */
|
|
|
4886 |
/* We don't allow nested IDEFs & FDEFs. */
|
|
|
4887 |
|
|
|
4888 |
while ( SKIP_Code() == SUCCESS )
|
|
|
4889 |
{
|
|
|
4890 |
switch ( CUR.opcode )
|
|
|
4891 |
{
|
|
|
4892 |
case 0x89: /* IDEF */
|
|
|
4893 |
case 0x2C: /* FDEF */
|
|
|
4894 |
CUR.error = TT_Err_Nested_DEFS;
|
|
|
4895 |
return;
|
|
|
4896 |
case 0x2D: /* ENDF */
|
|
|
4897 |
return;
|
|
|
4898 |
}
|
|
|
4899 |
}
|
|
|
4900 |
}
|
|
|
4901 |
|
|
|
4902 |
|
|
|
4903 |
/*************************************************************************/
|
|
|
4904 |
/* */
|
|
|
4905 |
/* PUSHING DATA ONTO THE INTERPRETER STACK */
|
|
|
4906 |
/* */
|
|
|
4907 |
/* Instructions appear in the specification's order. */
|
|
|
4908 |
/* */
|
|
|
4909 |
/*************************************************************************/
|
|
|
4910 |
|
|
|
4911 |
|
|
|
4912 |
/*************************************************************************/
|
|
|
4913 |
/* */
|
|
|
4914 |
/* NPUSHB[]: PUSH N Bytes */
|
|
|
4915 |
/* Opcode range: 0x40 */
|
|
|
4916 |
/* Stack: --> uint32... */
|
|
|
4917 |
/* */
|
|
|
4918 |
static void
|
|
|
4919 |
Ins_NPUSHB( INS_ARG )
|
|
|
4920 |
{
|
|
|
4921 |
FT_UShort L, K;
|
|
|
4922 |
|
|
|
4923 |
|
|
|
4924 |
L = (FT_UShort)CUR.code[CUR.IP + 1];
|
|
|
4925 |
|
|
|
4926 |
if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) )
|
|
|
4927 |
{
|
|
|
4928 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
4929 |
return;
|
|
|
4930 |
}
|
|
|
4931 |
|
|
|
4932 |
for ( K = 1; K <= L; K++ )
|
|
|
4933 |
args[K - 1] = CUR.code[CUR.IP + K + 1];
|
|
|
4934 |
|
|
|
4935 |
CUR.new_top += L;
|
|
|
4936 |
}
|
|
|
4937 |
|
|
|
4938 |
|
|
|
4939 |
/*************************************************************************/
|
|
|
4940 |
/* */
|
|
|
4941 |
/* NPUSHW[]: PUSH N Words */
|
|
|
4942 |
/* Opcode range: 0x41 */
|
|
|
4943 |
/* Stack: --> int32... */
|
|
|
4944 |
/* */
|
|
|
4945 |
static void
|
|
|
4946 |
Ins_NPUSHW( INS_ARG )
|
|
|
4947 |
{
|
|
|
4948 |
FT_UShort L, K;
|
|
|
4949 |
|
|
|
4950 |
|
|
|
4951 |
L = (FT_UShort)CUR.code[CUR.IP + 1];
|
|
|
4952 |
|
|
|
4953 |
if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) )
|
|
|
4954 |
{
|
|
|
4955 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
4956 |
return;
|
|
|
4957 |
}
|
|
|
4958 |
|
|
|
4959 |
CUR.IP += 2;
|
|
|
4960 |
|
|
|
4961 |
for ( K = 0; K < L; K++ )
|
|
|
4962 |
args[K] = GET_ShortIns();
|
|
|
4963 |
|
|
|
4964 |
CUR.step_ins = FALSE;
|
|
|
4965 |
CUR.new_top += L;
|
|
|
4966 |
}
|
|
|
4967 |
|
|
|
4968 |
|
|
|
4969 |
/*************************************************************************/
|
|
|
4970 |
/* */
|
|
|
4971 |
/* PUSHB[abc]: PUSH Bytes */
|
|
|
4972 |
/* Opcode range: 0xB0-0xB7 */
|
|
|
4973 |
/* Stack: --> uint32... */
|
|
|
4974 |
/* */
|
|
|
4975 |
static void
|
|
|
4976 |
Ins_PUSHB( INS_ARG )
|
|
|
4977 |
{
|
|
|
4978 |
FT_UShort L, K;
|
|
|
4979 |
|
|
|
4980 |
|
|
|
4981 |
L = (FT_UShort)( CUR.opcode - 0xB0 + 1 );
|
|
|
4982 |
|
|
|
4983 |
if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) )
|
|
|
4984 |
{
|
|
|
4985 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
4986 |
return;
|
|
|
4987 |
}
|
|
|
4988 |
|
|
|
4989 |
for ( K = 1; K <= L; K++ )
|
|
|
4990 |
args[K - 1] = CUR.code[CUR.IP + K];
|
|
|
4991 |
}
|
|
|
4992 |
|
|
|
4993 |
|
|
|
4994 |
/*************************************************************************/
|
|
|
4995 |
/* */
|
|
|
4996 |
/* PUSHW[abc]: PUSH Words */
|
|
|
4997 |
/* Opcode range: 0xB8-0xBF */
|
|
|
4998 |
/* Stack: --> int32... */
|
|
|
4999 |
/* */
|
|
|
5000 |
static void
|
|
|
5001 |
Ins_PUSHW( INS_ARG )
|
|
|
5002 |
{
|
|
|
5003 |
FT_UShort L, K;
|
|
|
5004 |
|
|
|
5005 |
|
|
|
5006 |
L = (FT_UShort)( CUR.opcode - 0xB8 + 1 );
|
|
|
5007 |
|
|
|
5008 |
if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) )
|
|
|
5009 |
{
|
|
|
5010 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
5011 |
return;
|
|
|
5012 |
}
|
|
|
5013 |
|
|
|
5014 |
CUR.IP++;
|
|
|
5015 |
|
|
|
5016 |
for ( K = 0; K < L; K++ )
|
|
|
5017 |
args[K] = GET_ShortIns();
|
|
|
5018 |
|
|
|
5019 |
CUR.step_ins = FALSE;
|
|
|
5020 |
}
|
|
|
5021 |
|
|
|
5022 |
|
|
|
5023 |
/*************************************************************************/
|
|
|
5024 |
/* */
|
|
|
5025 |
/* MANAGING THE GRAPHICS STATE */
|
|
|
5026 |
/* */
|
|
|
5027 |
/* Instructions appear in the specs' order. */
|
|
|
5028 |
/* */
|
|
|
5029 |
/*************************************************************************/
|
|
|
5030 |
|
|
|
5031 |
|
|
|
5032 |
/*************************************************************************/
|
|
|
5033 |
/* */
|
|
|
5034 |
/* GC[a]: Get Coordinate projected onto */
|
|
|
5035 |
/* Opcode range: 0x46-0x47 */
|
|
|
5036 |
/* Stack: uint32 --> f26.6 */
|
|
|
5037 |
/* */
|
|
|
5038 |
/* BULLSHIT: Measures from the original glyph must be taken along the */
|
|
|
5039 |
/* dual projection vector! */
|
|
|
5040 |
/* */
|
|
|
5041 |
static void
|
|
|
5042 |
Ins_GC( INS_ARG )
|
|
|
5043 |
{
|
|
|
5044 |
FT_ULong L;
|
|
|
5045 |
FT_F26Dot6 R;
|
|
|
5046 |
|
|
|
5047 |
|
|
|
5048 |
L = (FT_ULong)args[0];
|
|
|
5049 |
|
|
|
5050 |
if ( BOUNDSL( L, CUR.zp2.n_points ) )
|
|
|
5051 |
{
|
|
|
5052 |
if ( CUR.pedantic_hinting )
|
|
|
5053 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5054 |
R = 0;
|
|
|
5055 |
}
|
|
|
5056 |
else
|
|
|
5057 |
{
|
|
|
5058 |
if ( CUR.opcode & 1 )
|
|
|
5059 |
R = CUR_fast_dualproj( &CUR.zp2.org[L] );
|
|
|
5060 |
else
|
|
|
5061 |
R = CUR_fast_project( &CUR.zp2.cur[L] );
|
|
|
5062 |
}
|
|
|
5063 |
|
|
|
5064 |
args[0] = R;
|
|
|
5065 |
}
|
|
|
5066 |
|
|
|
5067 |
|
|
|
5068 |
/*************************************************************************/
|
|
|
5069 |
/* */
|
|
|
5070 |
/* SCFS[]: Set Coordinate From Stack */
|
|
|
5071 |
/* Opcode range: 0x48 */
|
|
|
5072 |
/* Stack: f26.6 uint32 --> */
|
|
|
5073 |
/* */
|
|
|
5074 |
/* Formula: */
|
|
|
5075 |
/* */
|
|
|
5076 |
/* OA := OA + ( value - OA.p )/( f.p ) * f */
|
|
|
5077 |
/* */
|
|
|
5078 |
static void
|
|
|
5079 |
Ins_SCFS( INS_ARG )
|
|
|
5080 |
{
|
|
|
5081 |
FT_Long K;
|
|
|
5082 |
FT_UShort L;
|
|
|
5083 |
|
|
|
5084 |
|
|
|
5085 |
L = (FT_UShort)args[0];
|
|
|
5086 |
|
|
|
5087 |
if ( BOUNDS( L, CUR.zp2.n_points ) )
|
|
|
5088 |
{
|
|
|
5089 |
if ( CUR.pedantic_hinting )
|
|
|
5090 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5091 |
return;
|
|
|
5092 |
}
|
|
|
5093 |
|
|
|
5094 |
K = CUR_fast_project( &CUR.zp2.cur[L] );
|
|
|
5095 |
|
|
|
5096 |
CUR_Func_move( &CUR.zp2, L, args[1] - K );
|
|
|
5097 |
|
|
|
5098 |
/* not part of the specs, but here for safety */
|
|
|
5099 |
|
|
|
5100 |
if ( CUR.GS.gep2 == 0 )
|
|
|
5101 |
CUR.zp2.org[L] = CUR.zp2.cur[L];
|
|
|
5102 |
}
|
|
|
5103 |
|
|
|
5104 |
|
|
|
5105 |
/*************************************************************************/
|
|
|
5106 |
/* */
|
|
|
5107 |
/* MD[a]: Measure Distance */
|
|
|
5108 |
/* Opcode range: 0x49-0x4A */
|
|
|
5109 |
/* Stack: uint32 uint32 --> f26.6 */
|
|
|
5110 |
/* */
|
|
|
5111 |
/* BULLSHIT: Measure taken in the original glyph must be along the dual */
|
|
|
5112 |
/* projection vector. */
|
|
|
5113 |
/* */
|
|
|
5114 |
/* Second BULLSHIT: Flag attributes are inverted! */
|
|
|
5115 |
/* 0 => measure distance in original outline */
|
|
|
5116 |
/* 1 => measure distance in grid-fitted outline */
|
|
|
5117 |
/* */
|
|
|
5118 |
/* Third one: `zp0 - zp1', and not `zp2 - zp1! */
|
|
|
5119 |
/* */
|
|
|
5120 |
static void
|
|
|
5121 |
Ins_MD( INS_ARG )
|
|
|
5122 |
{
|
|
|
5123 |
FT_UShort K, L;
|
|
|
5124 |
FT_F26Dot6 D;
|
|
|
5125 |
|
|
|
5126 |
|
|
|
5127 |
K = (FT_UShort)args[1];
|
|
|
5128 |
L = (FT_UShort)args[0];
|
|
|
5129 |
|
|
|
5130 |
if ( BOUNDS( L, CUR.zp0.n_points ) ||
|
|
|
5131 |
BOUNDS( K, CUR.zp1.n_points ) )
|
|
|
5132 |
{
|
|
|
5133 |
if ( CUR.pedantic_hinting )
|
|
|
5134 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5135 |
D = 0;
|
|
|
5136 |
}
|
|
|
5137 |
else
|
|
|
5138 |
{
|
|
|
5139 |
if ( CUR.opcode & 1 )
|
|
|
5140 |
D = CUR_Func_project( CUR.zp0.cur + L, CUR.zp1.cur + K );
|
|
|
5141 |
else
|
|
|
5142 |
{
|
|
|
5143 |
FT_Vector* vec1 = CUR.zp0.orus + L;
|
|
|
5144 |
FT_Vector* vec2 = CUR.zp1.orus + K;
|
|
|
5145 |
|
|
|
5146 |
|
|
|
5147 |
if ( CUR.metrics.x_scale == CUR.metrics.y_scale )
|
|
|
5148 |
{
|
|
|
5149 |
/* this should be faster */
|
|
|
5150 |
D = CUR_Func_dualproj( vec1, vec2 );
|
|
|
5151 |
D = TT_MULFIX( D, CUR.metrics.x_scale );
|
|
|
5152 |
}
|
|
|
5153 |
else
|
|
|
5154 |
{
|
|
|
5155 |
FT_Vector vec;
|
|
|
5156 |
|
|
|
5157 |
|
|
|
5158 |
vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale );
|
|
|
5159 |
vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale );
|
|
|
5160 |
|
|
|
5161 |
D = CUR_fast_dualproj( &vec );
|
|
|
5162 |
}
|
|
|
5163 |
}
|
|
|
5164 |
}
|
|
|
5165 |
|
|
|
5166 |
args[0] = D;
|
|
|
5167 |
}
|
|
|
5168 |
|
|
|
5169 |
|
|
|
5170 |
/*************************************************************************/
|
|
|
5171 |
/* */
|
|
|
5172 |
/* SDPVTL[a]: Set Dual PVector to Line */
|
|
|
5173 |
/* Opcode range: 0x86-0x87 */
|
|
|
5174 |
/* Stack: uint32 uint32 --> */
|
|
|
5175 |
/* */
|
|
|
5176 |
static void
|
|
|
5177 |
Ins_SDPVTL( INS_ARG )
|
|
|
5178 |
{
|
|
|
5179 |
FT_Long A, B, C;
|
|
|
5180 |
FT_UShort p1, p2; /* was FT_Int in pas type ERROR */
|
|
|
5181 |
|
|
|
5182 |
|
|
|
5183 |
p1 = (FT_UShort)args[1];
|
|
|
5184 |
p2 = (FT_UShort)args[0];
|
|
|
5185 |
|
|
|
5186 |
if ( BOUNDS( p2, CUR.zp1.n_points ) ||
|
|
|
5187 |
BOUNDS( p1, CUR.zp2.n_points ) )
|
|
|
5188 |
{
|
|
|
5189 |
if ( CUR.pedantic_hinting )
|
|
|
5190 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5191 |
return;
|
|
|
5192 |
}
|
|
|
5193 |
|
|
|
5194 |
{
|
|
|
5195 |
FT_Vector* v1 = CUR.zp1.org + p2;
|
|
|
5196 |
FT_Vector* v2 = CUR.zp2.org + p1;
|
|
|
5197 |
|
|
|
5198 |
|
|
|
5199 |
A = v1->x - v2->x;
|
|
|
5200 |
B = v1->y - v2->y;
|
|
|
5201 |
}
|
|
|
5202 |
|
|
|
5203 |
if ( ( CUR.opcode & 1 ) != 0 )
|
|
|
5204 |
{
|
|
|
5205 |
C = B; /* counter clockwise rotation */
|
|
|
5206 |
B = A;
|
|
|
5207 |
A = -C;
|
|
|
5208 |
}
|
|
|
5209 |
|
|
|
5210 |
NORMalize( A, B, &CUR.GS.dualVector );
|
|
|
5211 |
|
|
|
5212 |
{
|
|
|
5213 |
FT_Vector* v1 = CUR.zp1.cur + p2;
|
|
|
5214 |
FT_Vector* v2 = CUR.zp2.cur + p1;
|
|
|
5215 |
|
|
|
5216 |
|
|
|
5217 |
A = v1->x - v2->x;
|
|
|
5218 |
B = v1->y - v2->y;
|
|
|
5219 |
}
|
|
|
5220 |
|
|
|
5221 |
if ( ( CUR.opcode & 1 ) != 0 )
|
|
|
5222 |
{
|
|
|
5223 |
C = B; /* counter clockwise rotation */
|
|
|
5224 |
B = A;
|
|
|
5225 |
A = -C;
|
|
|
5226 |
}
|
|
|
5227 |
|
|
|
5228 |
NORMalize( A, B, &CUR.GS.projVector );
|
|
|
5229 |
|
|
|
5230 |
GUESS_VECTOR( freeVector );
|
|
|
5231 |
|
|
|
5232 |
COMPUTE_Funcs();
|
|
|
5233 |
}
|
|
|
5234 |
|
|
|
5235 |
|
|
|
5236 |
/*************************************************************************/
|
|
|
5237 |
/* */
|
|
|
5238 |
/* SZP0[]: Set Zone Pointer 0 */
|
|
|
5239 |
/* Opcode range: 0x13 */
|
|
|
5240 |
/* Stack: uint32 --> */
|
|
|
5241 |
/* */
|
|
|
5242 |
static void
|
|
|
5243 |
Ins_SZP0( INS_ARG )
|
|
|
5244 |
{
|
|
|
5245 |
switch ( (FT_Int)args[0] )
|
|
|
5246 |
{
|
|
|
5247 |
case 0:
|
|
|
5248 |
CUR.zp0 = CUR.twilight;
|
|
|
5249 |
break;
|
|
|
5250 |
|
|
|
5251 |
case 1:
|
|
|
5252 |
CUR.zp0 = CUR.pts;
|
|
|
5253 |
break;
|
|
|
5254 |
|
|
|
5255 |
default:
|
|
|
5256 |
if ( CUR.pedantic_hinting )
|
|
|
5257 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5258 |
return;
|
|
|
5259 |
}
|
|
|
5260 |
|
|
|
5261 |
CUR.GS.gep0 = (FT_UShort)args[0];
|
|
|
5262 |
}
|
|
|
5263 |
|
|
|
5264 |
|
|
|
5265 |
/*************************************************************************/
|
|
|
5266 |
/* */
|
|
|
5267 |
/* SZP1[]: Set Zone Pointer 1 */
|
|
|
5268 |
/* Opcode range: 0x14 */
|
|
|
5269 |
/* Stack: uint32 --> */
|
|
|
5270 |
/* */
|
|
|
5271 |
static void
|
|
|
5272 |
Ins_SZP1( INS_ARG )
|
|
|
5273 |
{
|
|
|
5274 |
switch ( (FT_Int)args[0] )
|
|
|
5275 |
{
|
|
|
5276 |
case 0:
|
|
|
5277 |
CUR.zp1 = CUR.twilight;
|
|
|
5278 |
break;
|
|
|
5279 |
|
|
|
5280 |
case 1:
|
|
|
5281 |
CUR.zp1 = CUR.pts;
|
|
|
5282 |
break;
|
|
|
5283 |
|
|
|
5284 |
default:
|
|
|
5285 |
if ( CUR.pedantic_hinting )
|
|
|
5286 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5287 |
return;
|
|
|
5288 |
}
|
|
|
5289 |
|
|
|
5290 |
CUR.GS.gep1 = (FT_UShort)args[0];
|
|
|
5291 |
}
|
|
|
5292 |
|
|
|
5293 |
|
|
|
5294 |
/*************************************************************************/
|
|
|
5295 |
/* */
|
|
|
5296 |
/* SZP2[]: Set Zone Pointer 2 */
|
|
|
5297 |
/* Opcode range: 0x15 */
|
|
|
5298 |
/* Stack: uint32 --> */
|
|
|
5299 |
/* */
|
|
|
5300 |
static void
|
|
|
5301 |
Ins_SZP2( INS_ARG )
|
|
|
5302 |
{
|
|
|
5303 |
switch ( (FT_Int)args[0] )
|
|
|
5304 |
{
|
|
|
5305 |
case 0:
|
|
|
5306 |
CUR.zp2 = CUR.twilight;
|
|
|
5307 |
break;
|
|
|
5308 |
|
|
|
5309 |
case 1:
|
|
|
5310 |
CUR.zp2 = CUR.pts;
|
|
|
5311 |
break;
|
|
|
5312 |
|
|
|
5313 |
default:
|
|
|
5314 |
if ( CUR.pedantic_hinting )
|
|
|
5315 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5316 |
return;
|
|
|
5317 |
}
|
|
|
5318 |
|
|
|
5319 |
CUR.GS.gep2 = (FT_UShort)args[0];
|
|
|
5320 |
}
|
|
|
5321 |
|
|
|
5322 |
|
|
|
5323 |
/*************************************************************************/
|
|
|
5324 |
/* */
|
|
|
5325 |
/* SZPS[]: Set Zone PointerS */
|
|
|
5326 |
/* Opcode range: 0x16 */
|
|
|
5327 |
/* Stack: uint32 --> */
|
|
|
5328 |
/* */
|
|
|
5329 |
static void
|
|
|
5330 |
Ins_SZPS( INS_ARG )
|
|
|
5331 |
{
|
|
|
5332 |
switch ( (FT_Int)args[0] )
|
|
|
5333 |
{
|
|
|
5334 |
case 0:
|
|
|
5335 |
CUR.zp0 = CUR.twilight;
|
|
|
5336 |
break;
|
|
|
5337 |
|
|
|
5338 |
case 1:
|
|
|
5339 |
CUR.zp0 = CUR.pts;
|
|
|
5340 |
break;
|
|
|
5341 |
|
|
|
5342 |
default:
|
|
|
5343 |
if ( CUR.pedantic_hinting )
|
|
|
5344 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5345 |
return;
|
|
|
5346 |
}
|
|
|
5347 |
|
|
|
5348 |
CUR.zp1 = CUR.zp0;
|
|
|
5349 |
CUR.zp2 = CUR.zp0;
|
|
|
5350 |
|
|
|
5351 |
CUR.GS.gep0 = (FT_UShort)args[0];
|
|
|
5352 |
CUR.GS.gep1 = (FT_UShort)args[0];
|
|
|
5353 |
CUR.GS.gep2 = (FT_UShort)args[0];
|
|
|
5354 |
}
|
|
|
5355 |
|
|
|
5356 |
|
|
|
5357 |
/*************************************************************************/
|
|
|
5358 |
/* */
|
|
|
5359 |
/* INSTCTRL[]: INSTruction ConTRoL */
|
|
|
5360 |
/* Opcode range: 0x8e */
|
|
|
5361 |
/* Stack: int32 int32 --> */
|
|
|
5362 |
/* */
|
|
|
5363 |
static void
|
|
|
5364 |
Ins_INSTCTRL( INS_ARG )
|
|
|
5365 |
{
|
|
|
5366 |
FT_Long K, L;
|
|
|
5367 |
|
|
|
5368 |
|
|
|
5369 |
K = args[1];
|
|
|
5370 |
L = args[0];
|
|
|
5371 |
|
|
|
5372 |
if ( K < 1 || K > 2 )
|
|
|
5373 |
{
|
|
|
5374 |
if ( CUR.pedantic_hinting )
|
|
|
5375 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5376 |
return;
|
|
|
5377 |
}
|
|
|
5378 |
|
|
|
5379 |
if ( L != 0 )
|
|
|
5380 |
L = K;
|
|
|
5381 |
|
|
|
5382 |
CUR.GS.instruct_control = FT_BOOL(
|
|
|
5383 |
( (FT_Byte)CUR.GS.instruct_control & ~(FT_Byte)K ) | (FT_Byte)L );
|
|
|
5384 |
}
|
|
|
5385 |
|
|
|
5386 |
|
|
|
5387 |
/*************************************************************************/
|
|
|
5388 |
/* */
|
|
|
5389 |
/* SCANCTRL[]: SCAN ConTRoL */
|
|
|
5390 |
/* Opcode range: 0x85 */
|
|
|
5391 |
/* Stack: uint32? --> */
|
|
|
5392 |
/* */
|
|
|
5393 |
static void
|
|
|
5394 |
Ins_SCANCTRL( INS_ARG )
|
|
|
5395 |
{
|
|
|
5396 |
FT_Int A;
|
|
|
5397 |
|
|
|
5398 |
|
|
|
5399 |
/* Get Threshold */
|
|
|
5400 |
A = (FT_Int)( args[0] & 0xFF );
|
|
|
5401 |
|
|
|
5402 |
if ( A == 0xFF )
|
|
|
5403 |
{
|
|
|
5404 |
CUR.GS.scan_control = TRUE;
|
|
|
5405 |
return;
|
|
|
5406 |
}
|
|
|
5407 |
else if ( A == 0 )
|
|
|
5408 |
{
|
|
|
5409 |
CUR.GS.scan_control = FALSE;
|
|
|
5410 |
return;
|
|
|
5411 |
}
|
|
|
5412 |
|
|
|
5413 |
if ( ( args[0] & 0x100 ) != 0 && CUR.tt_metrics.ppem <= A )
|
|
|
5414 |
CUR.GS.scan_control = TRUE;
|
|
|
5415 |
|
|
|
5416 |
if ( ( args[0] & 0x200 ) != 0 && CUR.tt_metrics.rotated )
|
|
|
5417 |
CUR.GS.scan_control = TRUE;
|
|
|
5418 |
|
|
|
5419 |
if ( ( args[0] & 0x400 ) != 0 && CUR.tt_metrics.stretched )
|
|
|
5420 |
CUR.GS.scan_control = TRUE;
|
|
|
5421 |
|
|
|
5422 |
if ( ( args[0] & 0x800 ) != 0 && CUR.tt_metrics.ppem > A )
|
|
|
5423 |
CUR.GS.scan_control = FALSE;
|
|
|
5424 |
|
|
|
5425 |
if ( ( args[0] & 0x1000 ) != 0 && CUR.tt_metrics.rotated )
|
|
|
5426 |
CUR.GS.scan_control = FALSE;
|
|
|
5427 |
|
|
|
5428 |
if ( ( args[0] & 0x2000 ) != 0 && CUR.tt_metrics.stretched )
|
|
|
5429 |
CUR.GS.scan_control = FALSE;
|
|
|
5430 |
}
|
|
|
5431 |
|
|
|
5432 |
|
|
|
5433 |
/*************************************************************************/
|
|
|
5434 |
/* */
|
|
|
5435 |
/* SCANTYPE[]: SCAN TYPE */
|
|
|
5436 |
/* Opcode range: 0x8D */
|
|
|
5437 |
/* Stack: uint32? --> */
|
|
|
5438 |
/* */
|
|
|
5439 |
static void
|
|
|
5440 |
Ins_SCANTYPE( INS_ARG )
|
|
|
5441 |
{
|
|
|
5442 |
if ( args[0] >= 0 )
|
|
|
5443 |
CUR.GS.scan_type = (FT_Int)args[0];
|
|
|
5444 |
}
|
|
|
5445 |
|
|
|
5446 |
|
|
|
5447 |
/*************************************************************************/
|
|
|
5448 |
/* */
|
|
|
5449 |
/* MANAGING OUTLINES */
|
|
|
5450 |
/* */
|
|
|
5451 |
/* Instructions appear in the specification's order. */
|
|
|
5452 |
/* */
|
|
|
5453 |
/*************************************************************************/
|
|
|
5454 |
|
|
|
5455 |
|
|
|
5456 |
/*************************************************************************/
|
|
|
5457 |
/* */
|
|
|
5458 |
/* FLIPPT[]: FLIP PoinT */
|
|
|
5459 |
/* Opcode range: 0x80 */
|
|
|
5460 |
/* Stack: uint32... --> */
|
|
|
5461 |
/* */
|
|
|
5462 |
static void
|
|
|
5463 |
Ins_FLIPPT( INS_ARG )
|
|
|
5464 |
{
|
|
|
5465 |
FT_UShort point;
|
|
|
5466 |
|
|
|
5467 |
FT_UNUSED_ARG;
|
|
|
5468 |
|
|
|
5469 |
|
|
|
5470 |
if ( CUR.top < CUR.GS.loop )
|
|
|
5471 |
{
|
|
|
5472 |
if ( CUR.pedantic_hinting )
|
|
|
5473 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
5474 |
goto Fail;
|
|
|
5475 |
}
|
|
|
5476 |
|
|
|
5477 |
while ( CUR.GS.loop > 0 )
|
|
|
5478 |
{
|
|
|
5479 |
CUR.args--;
|
|
|
5480 |
|
|
|
5481 |
point = (FT_UShort)CUR.stack[CUR.args];
|
|
|
5482 |
|
|
|
5483 |
if ( BOUNDS( point, CUR.pts.n_points ) )
|
|
|
5484 |
{
|
|
|
5485 |
if ( CUR.pedantic_hinting )
|
|
|
5486 |
{
|
|
|
5487 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5488 |
return;
|
|
|
5489 |
}
|
|
|
5490 |
}
|
|
|
5491 |
else
|
|
|
5492 |
CUR.pts.tags[point] ^= FT_CURVE_TAG_ON;
|
|
|
5493 |
|
|
|
5494 |
CUR.GS.loop--;
|
|
|
5495 |
}
|
|
|
5496 |
|
|
|
5497 |
Fail:
|
|
|
5498 |
CUR.GS.loop = 1;
|
|
|
5499 |
CUR.new_top = CUR.args;
|
|
|
5500 |
}
|
|
|
5501 |
|
|
|
5502 |
|
|
|
5503 |
/*************************************************************************/
|
|
|
5504 |
/* */
|
|
|
5505 |
/* FLIPRGON[]: FLIP RanGe ON */
|
|
|
5506 |
/* Opcode range: 0x81 */
|
|
|
5507 |
/* Stack: uint32 uint32 --> */
|
|
|
5508 |
/* */
|
|
|
5509 |
static void
|
|
|
5510 |
Ins_FLIPRGON( INS_ARG )
|
|
|
5511 |
{
|
|
|
5512 |
FT_UShort I, K, L;
|
|
|
5513 |
|
|
|
5514 |
|
|
|
5515 |
K = (FT_UShort)args[1];
|
|
|
5516 |
L = (FT_UShort)args[0];
|
|
|
5517 |
|
|
|
5518 |
if ( BOUNDS( K, CUR.pts.n_points ) ||
|
|
|
5519 |
BOUNDS( L, CUR.pts.n_points ) )
|
|
|
5520 |
{
|
|
|
5521 |
if ( CUR.pedantic_hinting )
|
|
|
5522 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5523 |
return;
|
|
|
5524 |
}
|
|
|
5525 |
|
|
|
5526 |
for ( I = L; I <= K; I++ )
|
|
|
5527 |
CUR.pts.tags[I] |= FT_CURVE_TAG_ON;
|
|
|
5528 |
}
|
|
|
5529 |
|
|
|
5530 |
|
|
|
5531 |
/*************************************************************************/
|
|
|
5532 |
/* */
|
|
|
5533 |
/* FLIPRGOFF: FLIP RanGe OFF */
|
|
|
5534 |
/* Opcode range: 0x82 */
|
|
|
5535 |
/* Stack: uint32 uint32 --> */
|
|
|
5536 |
/* */
|
|
|
5537 |
static void
|
|
|
5538 |
Ins_FLIPRGOFF( INS_ARG )
|
|
|
5539 |
{
|
|
|
5540 |
FT_UShort I, K, L;
|
|
|
5541 |
|
|
|
5542 |
|
|
|
5543 |
K = (FT_UShort)args[1];
|
|
|
5544 |
L = (FT_UShort)args[0];
|
|
|
5545 |
|
|
|
5546 |
if ( BOUNDS( K, CUR.pts.n_points ) ||
|
|
|
5547 |
BOUNDS( L, CUR.pts.n_points ) )
|
|
|
5548 |
{
|
|
|
5549 |
if ( CUR.pedantic_hinting )
|
|
|
5550 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5551 |
return;
|
|
|
5552 |
}
|
|
|
5553 |
|
|
|
5554 |
for ( I = L; I <= K; I++ )
|
|
|
5555 |
CUR.pts.tags[I] &= ~FT_CURVE_TAG_ON;
|
|
|
5556 |
}
|
|
|
5557 |
|
|
|
5558 |
|
|
|
5559 |
static FT_Bool
|
|
|
5560 |
Compute_Point_Displacement( EXEC_OP_ FT_F26Dot6* x,
|
|
|
5561 |
FT_F26Dot6* y,
|
|
|
5562 |
TT_GlyphZone zone,
|
|
|
5563 |
FT_UShort* refp )
|
|
|
5564 |
{
|
|
|
5565 |
TT_GlyphZoneRec zp;
|
|
|
5566 |
FT_UShort p;
|
|
|
5567 |
FT_F26Dot6 d;
|
|
|
5568 |
|
|
|
5569 |
|
|
|
5570 |
if ( CUR.opcode & 1 )
|
|
|
5571 |
{
|
|
|
5572 |
zp = CUR.zp0;
|
|
|
5573 |
p = CUR.GS.rp1;
|
|
|
5574 |
}
|
|
|
5575 |
else
|
|
|
5576 |
{
|
|
|
5577 |
zp = CUR.zp1;
|
|
|
5578 |
p = CUR.GS.rp2;
|
|
|
5579 |
}
|
|
|
5580 |
|
|
|
5581 |
if ( BOUNDS( p, zp.n_points ) )
|
|
|
5582 |
{
|
|
|
5583 |
if ( CUR.pedantic_hinting )
|
|
|
5584 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5585 |
*refp = 0;
|
|
|
5586 |
return FAILURE;
|
|
|
5587 |
}
|
|
|
5588 |
|
|
|
5589 |
*zone = zp;
|
|
|
5590 |
*refp = p;
|
|
|
5591 |
|
|
|
5592 |
d = CUR_Func_project( zp.cur + p, zp.org + p );
|
|
|
5593 |
|
|
|
5594 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
5595 |
if ( CUR.face->unpatented_hinting )
|
|
|
5596 |
{
|
|
|
5597 |
if ( CUR.GS.both_x_axis )
|
|
|
5598 |
{
|
|
|
5599 |
*x = d;
|
|
|
5600 |
*y = 0;
|
|
|
5601 |
}
|
|
|
5602 |
else
|
|
|
5603 |
{
|
|
|
5604 |
*x = 0;
|
|
|
5605 |
*y = d;
|
|
|
5606 |
}
|
|
|
5607 |
}
|
|
|
5608 |
else
|
|
|
5609 |
#endif
|
|
|
5610 |
{
|
|
|
5611 |
*x = TT_MULDIV( d,
|
|
|
5612 |
(FT_Long)CUR.GS.freeVector.x * 0x10000L,
|
|
|
5613 |
CUR.F_dot_P );
|
|
|
5614 |
*y = TT_MULDIV( d,
|
|
|
5615 |
(FT_Long)CUR.GS.freeVector.y * 0x10000L,
|
|
|
5616 |
CUR.F_dot_P );
|
|
|
5617 |
}
|
|
|
5618 |
|
|
|
5619 |
return SUCCESS;
|
|
|
5620 |
}
|
|
|
5621 |
|
|
|
5622 |
|
|
|
5623 |
static void
|
|
|
5624 |
Move_Zp2_Point( EXEC_OP_ FT_UShort point,
|
|
|
5625 |
FT_F26Dot6 dx,
|
|
|
5626 |
FT_F26Dot6 dy,
|
|
|
5627 |
FT_Bool touch )
|
|
|
5628 |
{
|
|
|
5629 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
5630 |
if ( CUR.face->unpatented_hinting )
|
|
|
5631 |
{
|
|
|
5632 |
if ( CUR.GS.both_x_axis )
|
|
|
5633 |
{
|
|
|
5634 |
CUR.zp2.cur[point].x += dx;
|
|
|
5635 |
if ( touch )
|
|
|
5636 |
CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X;
|
|
|
5637 |
}
|
|
|
5638 |
else
|
|
|
5639 |
{
|
|
|
5640 |
CUR.zp2.cur[point].y += dy;
|
|
|
5641 |
if ( touch )
|
|
|
5642 |
CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y;
|
|
|
5643 |
}
|
|
|
5644 |
return;
|
|
|
5645 |
}
|
|
|
5646 |
#endif
|
|
|
5647 |
|
|
|
5648 |
if ( CUR.GS.freeVector.x != 0 )
|
|
|
5649 |
{
|
|
|
5650 |
CUR.zp2.cur[point].x += dx;
|
|
|
5651 |
if ( touch )
|
|
|
5652 |
CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X;
|
|
|
5653 |
}
|
|
|
5654 |
|
|
|
5655 |
if ( CUR.GS.freeVector.y != 0 )
|
|
|
5656 |
{
|
|
|
5657 |
CUR.zp2.cur[point].y += dy;
|
|
|
5658 |
if ( touch )
|
|
|
5659 |
CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y;
|
|
|
5660 |
}
|
|
|
5661 |
}
|
|
|
5662 |
|
|
|
5663 |
|
|
|
5664 |
/*************************************************************************/
|
|
|
5665 |
/* */
|
|
|
5666 |
/* SHP[a]: SHift Point by the last point */
|
|
|
5667 |
/* Opcode range: 0x32-0x33 */
|
|
|
5668 |
/* Stack: uint32... --> */
|
|
|
5669 |
/* */
|
|
|
5670 |
static void
|
|
|
5671 |
Ins_SHP( INS_ARG )
|
|
|
5672 |
{
|
|
|
5673 |
TT_GlyphZoneRec zp;
|
|
|
5674 |
FT_UShort refp;
|
|
|
5675 |
|
|
|
5676 |
FT_F26Dot6 dx,
|
|
|
5677 |
dy;
|
|
|
5678 |
FT_UShort point;
|
|
|
5679 |
|
|
|
5680 |
FT_UNUSED_ARG;
|
|
|
5681 |
|
|
|
5682 |
|
|
|
5683 |
if ( CUR.top < CUR.GS.loop )
|
|
|
5684 |
{
|
|
|
5685 |
if ( CUR.pedantic_hinting )
|
|
|
5686 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5687 |
goto Fail;
|
|
|
5688 |
}
|
|
|
5689 |
|
|
|
5690 |
if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) )
|
|
|
5691 |
return;
|
|
|
5692 |
|
|
|
5693 |
while ( CUR.GS.loop > 0 )
|
|
|
5694 |
{
|
|
|
5695 |
CUR.args--;
|
|
|
5696 |
point = (FT_UShort)CUR.stack[CUR.args];
|
|
|
5697 |
|
|
|
5698 |
if ( BOUNDS( point, CUR.zp2.n_points ) )
|
|
|
5699 |
{
|
|
|
5700 |
if ( CUR.pedantic_hinting )
|
|
|
5701 |
{
|
|
|
5702 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5703 |
return;
|
|
|
5704 |
}
|
|
|
5705 |
}
|
|
|
5706 |
else
|
|
|
5707 |
/* XXX: UNDOCUMENTED! SHP touches the points */
|
|
|
5708 |
MOVE_Zp2_Point( point, dx, dy, TRUE );
|
|
|
5709 |
|
|
|
5710 |
CUR.GS.loop--;
|
|
|
5711 |
}
|
|
|
5712 |
|
|
|
5713 |
Fail:
|
|
|
5714 |
CUR.GS.loop = 1;
|
|
|
5715 |
CUR.new_top = CUR.args;
|
|
|
5716 |
}
|
|
|
5717 |
|
|
|
5718 |
|
|
|
5719 |
/*************************************************************************/
|
|
|
5720 |
/* */
|
|
|
5721 |
/* SHC[a]: SHift Contour */
|
|
|
5722 |
/* Opcode range: 0x34-35 */
|
|
|
5723 |
/* Stack: uint32 --> */
|
|
|
5724 |
/* */
|
|
|
5725 |
static void
|
|
|
5726 |
Ins_SHC( INS_ARG )
|
|
|
5727 |
{
|
|
|
5728 |
TT_GlyphZoneRec zp;
|
|
|
5729 |
FT_UShort refp;
|
|
|
5730 |
FT_F26Dot6 dx,
|
|
|
5731 |
dy;
|
|
|
5732 |
|
|
|
5733 |
FT_Short contour;
|
|
|
5734 |
FT_UShort first_point, last_point, i;
|
|
|
5735 |
|
|
|
5736 |
|
|
|
5737 |
contour = (FT_UShort)args[0];
|
|
|
5738 |
|
|
|
5739 |
if ( BOUNDS( contour, CUR.pts.n_contours ) )
|
|
|
5740 |
{
|
|
|
5741 |
if ( CUR.pedantic_hinting )
|
|
|
5742 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5743 |
return;
|
|
|
5744 |
}
|
|
|
5745 |
|
|
|
5746 |
if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) )
|
|
|
5747 |
return;
|
|
|
5748 |
|
|
|
5749 |
if ( contour == 0 )
|
|
|
5750 |
first_point = 0;
|
|
|
5751 |
else
|
|
|
5752 |
first_point = (FT_UShort)( CUR.pts.contours[contour - 1] + 1 -
|
|
|
5753 |
CUR.pts.first_point );
|
|
|
5754 |
|
|
|
5755 |
last_point = (FT_UShort)( CUR.pts.contours[contour] -
|
|
|
5756 |
CUR.pts.first_point );
|
|
|
5757 |
|
|
|
5758 |
/* XXX: this is probably wrong... at least it prevents memory */
|
|
|
5759 |
/* corruption when zp2 is the twilight zone */
|
|
|
5760 |
if ( BOUNDS( last_point, CUR.zp2.n_points ) )
|
|
|
5761 |
{
|
|
|
5762 |
if ( CUR.zp2.n_points > 0 )
|
|
|
5763 |
last_point = (FT_UShort)(CUR.zp2.n_points - 1);
|
|
|
5764 |
else
|
|
|
5765 |
last_point = 0;
|
|
|
5766 |
}
|
|
|
5767 |
|
|
|
5768 |
/* XXX: UNDOCUMENTED! SHC touches the points */
|
|
|
5769 |
for ( i = first_point; i <= last_point; i++ )
|
|
|
5770 |
{
|
|
|
5771 |
if ( zp.cur != CUR.zp2.cur || refp != i )
|
|
|
5772 |
MOVE_Zp2_Point( i, dx, dy, TRUE );
|
|
|
5773 |
}
|
|
|
5774 |
}
|
|
|
5775 |
|
|
|
5776 |
|
|
|
5777 |
/*************************************************************************/
|
|
|
5778 |
/* */
|
|
|
5779 |
/* SHZ[a]: SHift Zone */
|
|
|
5780 |
/* Opcode range: 0x36-37 */
|
|
|
5781 |
/* Stack: uint32 --> */
|
|
|
5782 |
/* */
|
|
|
5783 |
static void
|
|
|
5784 |
Ins_SHZ( INS_ARG )
|
|
|
5785 |
{
|
|
|
5786 |
TT_GlyphZoneRec zp;
|
|
|
5787 |
FT_UShort refp;
|
|
|
5788 |
FT_F26Dot6 dx,
|
|
|
5789 |
dy;
|
|
|
5790 |
|
|
|
5791 |
FT_UShort last_point, i;
|
|
|
5792 |
|
|
|
5793 |
|
|
|
5794 |
if ( BOUNDS( args[0], 2 ) )
|
|
|
5795 |
{
|
|
|
5796 |
if ( CUR.pedantic_hinting )
|
|
|
5797 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5798 |
return;
|
|
|
5799 |
}
|
|
|
5800 |
|
|
|
5801 |
if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) )
|
|
|
5802 |
return;
|
|
|
5803 |
|
|
|
5804 |
/* XXX: UNDOCUMENTED! SHZ doesn't move the phantom points. */
|
|
|
5805 |
/* Twilight zone has no contours, so use `n_points'. */
|
|
|
5806 |
/* Normal zone's `n_points' includes phantoms, so must */
|
|
|
5807 |
/* use end of last contour. */
|
|
|
5808 |
if ( CUR.GS.gep2 == 0 && CUR.zp2.n_points > 0 )
|
|
|
5809 |
last_point = (FT_UShort)( CUR.zp2.n_points - 1 );
|
|
|
5810 |
else if ( CUR.GS.gep2 == 1 && CUR.zp2.n_contours > 0 )
|
|
|
5811 |
{
|
|
|
5812 |
last_point = (FT_UShort)( CUR.zp2.contours[CUR.zp2.n_contours - 1] );
|
|
|
5813 |
|
|
|
5814 |
if ( BOUNDS( last_point, CUR.zp2.n_points ) )
|
|
|
5815 |
{
|
|
|
5816 |
if ( CUR.pedantic_hinting )
|
|
|
5817 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5818 |
return;
|
|
|
5819 |
}
|
|
|
5820 |
}
|
|
|
5821 |
else
|
|
|
5822 |
last_point = 0;
|
|
|
5823 |
|
|
|
5824 |
/* XXX: UNDOCUMENTED! SHZ doesn't touch the points */
|
|
|
5825 |
for ( i = 0; i <= last_point; i++ )
|
|
|
5826 |
{
|
|
|
5827 |
if ( zp.cur != CUR.zp2.cur || refp != i )
|
|
|
5828 |
MOVE_Zp2_Point( i, dx, dy, FALSE );
|
|
|
5829 |
}
|
|
|
5830 |
}
|
|
|
5831 |
|
|
|
5832 |
|
|
|
5833 |
/*************************************************************************/
|
|
|
5834 |
/* */
|
|
|
5835 |
/* SHPIX[]: SHift points by a PIXel amount */
|
|
|
5836 |
/* Opcode range: 0x38 */
|
|
|
5837 |
/* Stack: f26.6 uint32... --> */
|
|
|
5838 |
/* */
|
|
|
5839 |
static void
|
|
|
5840 |
Ins_SHPIX( INS_ARG )
|
|
|
5841 |
{
|
|
|
5842 |
FT_F26Dot6 dx, dy;
|
|
|
5843 |
FT_UShort point;
|
|
|
5844 |
|
|
|
5845 |
|
|
|
5846 |
if ( CUR.top < CUR.GS.loop + 1 )
|
|
|
5847 |
{
|
|
|
5848 |
if ( CUR.pedantic_hinting )
|
|
|
5849 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5850 |
goto Fail;
|
|
|
5851 |
}
|
|
|
5852 |
|
|
|
5853 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
5854 |
if ( CUR.face->unpatented_hinting )
|
|
|
5855 |
{
|
|
|
5856 |
if ( CUR.GS.both_x_axis )
|
|
|
5857 |
{
|
|
|
5858 |
dx = TT_MulFix14( (FT_UInt32)args[0], 0x4000 );
|
|
|
5859 |
dy = 0;
|
|
|
5860 |
}
|
|
|
5861 |
else
|
|
|
5862 |
{
|
|
|
5863 |
dx = 0;
|
|
|
5864 |
dy = TT_MulFix14( (FT_UInt32)args[0], 0x4000 );
|
|
|
5865 |
}
|
|
|
5866 |
}
|
|
|
5867 |
else
|
|
|
5868 |
#endif
|
|
|
5869 |
{
|
|
|
5870 |
dx = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.x );
|
|
|
5871 |
dy = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.y );
|
|
|
5872 |
}
|
|
|
5873 |
|
|
|
5874 |
while ( CUR.GS.loop > 0 )
|
|
|
5875 |
{
|
|
|
5876 |
CUR.args--;
|
|
|
5877 |
|
|
|
5878 |
point = (FT_UShort)CUR.stack[CUR.args];
|
|
|
5879 |
|
|
|
5880 |
if ( BOUNDS( point, CUR.zp2.n_points ) )
|
|
|
5881 |
{
|
|
|
5882 |
if ( CUR.pedantic_hinting )
|
|
|
5883 |
{
|
|
|
5884 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5885 |
return;
|
|
|
5886 |
}
|
|
|
5887 |
}
|
|
|
5888 |
else
|
|
|
5889 |
MOVE_Zp2_Point( point, dx, dy, TRUE );
|
|
|
5890 |
|
|
|
5891 |
CUR.GS.loop--;
|
|
|
5892 |
}
|
|
|
5893 |
|
|
|
5894 |
Fail:
|
|
|
5895 |
CUR.GS.loop = 1;
|
|
|
5896 |
CUR.new_top = CUR.args;
|
|
|
5897 |
}
|
|
|
5898 |
|
|
|
5899 |
|
|
|
5900 |
/*************************************************************************/
|
|
|
5901 |
/* */
|
|
|
5902 |
/* MSIRP[a]: Move Stack Indirect Relative Position */
|
|
|
5903 |
/* Opcode range: 0x3A-0x3B */
|
|
|
5904 |
/* Stack: f26.6 uint32 --> */
|
|
|
5905 |
/* */
|
|
|
5906 |
static void
|
|
|
5907 |
Ins_MSIRP( INS_ARG )
|
|
|
5908 |
{
|
|
|
5909 |
FT_UShort point;
|
|
|
5910 |
FT_F26Dot6 distance;
|
|
|
5911 |
|
|
|
5912 |
|
|
|
5913 |
point = (FT_UShort)args[0];
|
|
|
5914 |
|
|
|
5915 |
if ( BOUNDS( point, CUR.zp1.n_points ) ||
|
|
|
5916 |
BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) )
|
|
|
5917 |
{
|
|
|
5918 |
if ( CUR.pedantic_hinting )
|
|
|
5919 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5920 |
return;
|
|
|
5921 |
}
|
|
|
5922 |
|
|
|
5923 |
/* XXX: UNDOCUMENTED! behaviour */
|
|
|
5924 |
if ( CUR.GS.gep1 == 0 ) /* if the point that is to be moved */
|
|
|
5925 |
/* is in twilight zone */
|
|
|
5926 |
{
|
|
|
5927 |
CUR.zp1.org[point] = CUR.zp0.org[CUR.GS.rp0];
|
|
|
5928 |
CUR_Func_move_orig( &CUR.zp1, point, args[1] );
|
|
|
5929 |
CUR.zp1.cur[point] = CUR.zp1.org[point];
|
|
|
5930 |
}
|
|
|
5931 |
|
|
|
5932 |
distance = CUR_Func_project( CUR.zp1.cur + point,
|
|
|
5933 |
CUR.zp0.cur + CUR.GS.rp0 );
|
|
|
5934 |
|
|
|
5935 |
CUR_Func_move( &CUR.zp1, point, args[1] - distance );
|
|
|
5936 |
|
|
|
5937 |
CUR.GS.rp1 = CUR.GS.rp0;
|
|
|
5938 |
CUR.GS.rp2 = point;
|
|
|
5939 |
|
|
|
5940 |
if ( ( CUR.opcode & 1 ) != 0 )
|
|
|
5941 |
CUR.GS.rp0 = point;
|
|
|
5942 |
}
|
|
|
5943 |
|
|
|
5944 |
|
|
|
5945 |
/*************************************************************************/
|
|
|
5946 |
/* */
|
|
|
5947 |
/* MDAP[a]: Move Direct Absolute Point */
|
|
|
5948 |
/* Opcode range: 0x2E-0x2F */
|
|
|
5949 |
/* Stack: uint32 --> */
|
|
|
5950 |
/* */
|
|
|
5951 |
static void
|
|
|
5952 |
Ins_MDAP( INS_ARG )
|
|
|
5953 |
{
|
|
|
5954 |
FT_UShort point;
|
|
|
5955 |
FT_F26Dot6 cur_dist,
|
|
|
5956 |
distance;
|
|
|
5957 |
|
|
|
5958 |
|
|
|
5959 |
point = (FT_UShort)args[0];
|
|
|
5960 |
|
|
|
5961 |
if ( BOUNDS( point, CUR.zp0.n_points ) )
|
|
|
5962 |
{
|
|
|
5963 |
if ( CUR.pedantic_hinting )
|
|
|
5964 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
5965 |
return;
|
|
|
5966 |
}
|
|
|
5967 |
|
|
|
5968 |
/* XXX: Is there some undocumented feature while in the */
|
|
|
5969 |
/* twilight zone? ? */
|
|
|
5970 |
if ( ( CUR.opcode & 1 ) != 0 )
|
|
|
5971 |
{
|
|
|
5972 |
cur_dist = CUR_fast_project( &CUR.zp0.cur[point] );
|
|
|
5973 |
distance = CUR_Func_round( cur_dist,
|
|
|
5974 |
CUR.tt_metrics.compensations[0] ) - cur_dist;
|
|
|
5975 |
}
|
|
|
5976 |
else
|
|
|
5977 |
distance = 0;
|
|
|
5978 |
|
|
|
5979 |
CUR_Func_move( &CUR.zp0, point, distance );
|
|
|
5980 |
|
|
|
5981 |
CUR.GS.rp0 = point;
|
|
|
5982 |
CUR.GS.rp1 = point;
|
|
|
5983 |
}
|
|
|
5984 |
|
|
|
5985 |
|
|
|
5986 |
/*************************************************************************/
|
|
|
5987 |
/* */
|
|
|
5988 |
/* MIAP[a]: Move Indirect Absolute Point */
|
|
|
5989 |
/* Opcode range: 0x3E-0x3F */
|
|
|
5990 |
/* Stack: uint32 uint32 --> */
|
|
|
5991 |
/* */
|
|
|
5992 |
static void
|
|
|
5993 |
Ins_MIAP( INS_ARG )
|
|
|
5994 |
{
|
|
|
5995 |
FT_ULong cvtEntry;
|
|
|
5996 |
FT_UShort point;
|
|
|
5997 |
FT_F26Dot6 distance,
|
|
|
5998 |
org_dist;
|
|
|
5999 |
|
|
|
6000 |
|
|
|
6001 |
cvtEntry = (FT_ULong)args[1];
|
|
|
6002 |
point = (FT_UShort)args[0];
|
|
|
6003 |
|
|
|
6004 |
if ( BOUNDS( point, CUR.zp0.n_points ) ||
|
|
|
6005 |
BOUNDSL( cvtEntry, CUR.cvtSize ) )
|
|
|
6006 |
{
|
|
|
6007 |
if ( CUR.pedantic_hinting )
|
|
|
6008 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6009 |
goto Fail;
|
|
|
6010 |
}
|
|
|
6011 |
|
|
|
6012 |
/* XXX: UNDOCUMENTED! */
|
|
|
6013 |
/* */
|
|
|
6014 |
/* The behaviour of an MIAP instruction is quite */
|
|
|
6015 |
/* different when used in the twilight zone. */
|
|
|
6016 |
/* */
|
|
|
6017 |
/* First, no control value cut-in test is performed */
|
|
|
6018 |
/* as it would fail anyway. Second, the original */
|
|
|
6019 |
/* point, i.e. (org_x,org_y) of zp0.point, is set */
|
|
|
6020 |
/* to the absolute, unrounded distance found in */
|
|
|
6021 |
/* the CVT. */
|
|
|
6022 |
/* */
|
|
|
6023 |
/* This is used in the CVT programs of the Microsoft */
|
|
|
6024 |
/* fonts Arial, Times, etc., in order to re-adjust */
|
|
|
6025 |
/* some key font heights. It allows the use of the */
|
|
|
6026 |
/* IP instruction in the twilight zone, which */
|
|
|
6027 |
/* otherwise would be `illegal' according to the */
|
|
|
6028 |
/* specification. */
|
|
|
6029 |
/* */
|
|
|
6030 |
/* We implement it with a special sequence for the */
|
|
|
6031 |
/* twilight zone. This is a bad hack, but it seems */
|
|
|
6032 |
/* to work. */
|
|
|
6033 |
|
|
|
6034 |
distance = CUR_Func_read_cvt( cvtEntry );
|
|
|
6035 |
|
|
|
6036 |
if ( CUR.GS.gep0 == 0 ) /* If in twilight zone */
|
|
|
6037 |
{
|
|
|
6038 |
CUR.zp0.org[point].x = TT_MulFix14( (FT_UInt32)distance, CUR.GS.freeVector.x );
|
|
|
6039 |
CUR.zp0.org[point].y = TT_MulFix14( (FT_UInt32)distance, CUR.GS.freeVector.y ),
|
|
|
6040 |
CUR.zp0.cur[point] = CUR.zp0.org[point];
|
|
|
6041 |
}
|
|
|
6042 |
|
|
|
6043 |
org_dist = CUR_fast_project( &CUR.zp0.cur[point] );
|
|
|
6044 |
|
|
|
6045 |
if ( ( CUR.opcode & 1 ) != 0 ) /* rounding and control cutin flag */
|
|
|
6046 |
{
|
|
|
6047 |
if ( FT_ABS( distance - org_dist ) > CUR.GS.control_value_cutin )
|
|
|
6048 |
distance = org_dist;
|
|
|
6049 |
|
|
|
6050 |
distance = CUR_Func_round( distance, CUR.tt_metrics.compensations[0] );
|
|
|
6051 |
}
|
|
|
6052 |
|
|
|
6053 |
CUR_Func_move( &CUR.zp0, point, distance - org_dist );
|
|
|
6054 |
|
|
|
6055 |
Fail:
|
|
|
6056 |
CUR.GS.rp0 = point;
|
|
|
6057 |
CUR.GS.rp1 = point;
|
|
|
6058 |
}
|
|
|
6059 |
|
|
|
6060 |
|
|
|
6061 |
/*************************************************************************/
|
|
|
6062 |
/* */
|
|
|
6063 |
/* MDRP[abcde]: Move Direct Relative Point */
|
|
|
6064 |
/* Opcode range: 0xC0-0xDF */
|
|
|
6065 |
/* Stack: uint32 --> */
|
|
|
6066 |
/* */
|
|
|
6067 |
static void
|
|
|
6068 |
Ins_MDRP( INS_ARG )
|
|
|
6069 |
{
|
|
|
6070 |
FT_UShort point;
|
|
|
6071 |
FT_F26Dot6 org_dist, distance;
|
|
|
6072 |
|
|
|
6073 |
|
|
|
6074 |
point = (FT_UShort)args[0];
|
|
|
6075 |
|
|
|
6076 |
if ( BOUNDS( point, CUR.zp1.n_points ) ||
|
|
|
6077 |
BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) )
|
|
|
6078 |
{
|
|
|
6079 |
if ( CUR.pedantic_hinting )
|
|
|
6080 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6081 |
goto Fail;
|
|
|
6082 |
}
|
|
|
6083 |
|
|
|
6084 |
/* XXX: Is there some undocumented feature while in the */
|
|
|
6085 |
/* twilight zone? */
|
|
|
6086 |
|
|
|
6087 |
/* XXX: UNDOCUMENTED: twilight zone special case */
|
|
|
6088 |
|
|
|
6089 |
if ( CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 )
|
|
|
6090 |
{
|
|
|
6091 |
FT_Vector* vec1 = &CUR.zp1.org[point];
|
|
|
6092 |
FT_Vector* vec2 = &CUR.zp0.org[CUR.GS.rp0];
|
|
|
6093 |
|
|
|
6094 |
|
|
|
6095 |
org_dist = CUR_Func_dualproj( vec1, vec2 );
|
|
|
6096 |
}
|
|
|
6097 |
else
|
|
|
6098 |
{
|
|
|
6099 |
FT_Vector* vec1 = &CUR.zp1.orus[point];
|
|
|
6100 |
FT_Vector* vec2 = &CUR.zp0.orus[CUR.GS.rp0];
|
|
|
6101 |
|
|
|
6102 |
|
|
|
6103 |
if ( CUR.metrics.x_scale == CUR.metrics.y_scale )
|
|
|
6104 |
{
|
|
|
6105 |
/* this should be faster */
|
|
|
6106 |
org_dist = CUR_Func_dualproj( vec1, vec2 );
|
|
|
6107 |
org_dist = TT_MULFIX( org_dist, CUR.metrics.x_scale );
|
|
|
6108 |
}
|
|
|
6109 |
else
|
|
|
6110 |
{
|
|
|
6111 |
FT_Vector vec;
|
|
|
6112 |
|
|
|
6113 |
|
|
|
6114 |
vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale );
|
|
|
6115 |
vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale );
|
|
|
6116 |
|
|
|
6117 |
org_dist = CUR_fast_dualproj( &vec );
|
|
|
6118 |
}
|
|
|
6119 |
}
|
|
|
6120 |
|
|
|
6121 |
/* single width cut-in test */
|
|
|
6122 |
|
|
|
6123 |
if ( FT_ABS( org_dist - CUR.GS.single_width_value ) <
|
|
|
6124 |
CUR.GS.single_width_cutin )
|
|
|
6125 |
{
|
|
|
6126 |
if ( org_dist >= 0 )
|
|
|
6127 |
org_dist = CUR.GS.single_width_value;
|
|
|
6128 |
else
|
|
|
6129 |
org_dist = -CUR.GS.single_width_value;
|
|
|
6130 |
}
|
|
|
6131 |
|
|
|
6132 |
/* round flag */
|
|
|
6133 |
|
|
|
6134 |
if ( ( CUR.opcode & 4 ) != 0 )
|
|
|
6135 |
distance = CUR_Func_round(
|
|
|
6136 |
org_dist,
|
|
|
6137 |
CUR.tt_metrics.compensations[CUR.opcode & 3] );
|
|
|
6138 |
else
|
|
|
6139 |
distance = ROUND_None(
|
|
|
6140 |
org_dist,
|
|
|
6141 |
CUR.tt_metrics.compensations[CUR.opcode & 3] );
|
|
|
6142 |
|
|
|
6143 |
/* minimum distance flag */
|
|
|
6144 |
|
|
|
6145 |
if ( ( CUR.opcode & 8 ) != 0 )
|
|
|
6146 |
{
|
|
|
6147 |
if ( org_dist >= 0 )
|
|
|
6148 |
{
|
|
|
6149 |
if ( distance < CUR.GS.minimum_distance )
|
|
|
6150 |
distance = CUR.GS.minimum_distance;
|
|
|
6151 |
}
|
|
|
6152 |
else
|
|
|
6153 |
{
|
|
|
6154 |
if ( distance > -CUR.GS.minimum_distance )
|
|
|
6155 |
distance = -CUR.GS.minimum_distance;
|
|
|
6156 |
}
|
|
|
6157 |
}
|
|
|
6158 |
|
|
|
6159 |
/* now move the point */
|
|
|
6160 |
|
|
|
6161 |
org_dist = CUR_Func_project( CUR.zp1.cur + point,
|
|
|
6162 |
CUR.zp0.cur + CUR.GS.rp0 );
|
|
|
6163 |
|
|
|
6164 |
CUR_Func_move( &CUR.zp1, point, distance - org_dist );
|
|
|
6165 |
|
|
|
6166 |
Fail:
|
|
|
6167 |
CUR.GS.rp1 = CUR.GS.rp0;
|
|
|
6168 |
CUR.GS.rp2 = point;
|
|
|
6169 |
|
|
|
6170 |
if ( ( CUR.opcode & 16 ) != 0 )
|
|
|
6171 |
CUR.GS.rp0 = point;
|
|
|
6172 |
}
|
|
|
6173 |
|
|
|
6174 |
|
|
|
6175 |
/*************************************************************************/
|
|
|
6176 |
/* */
|
|
|
6177 |
/* MIRP[abcde]: Move Indirect Relative Point */
|
|
|
6178 |
/* Opcode range: 0xE0-0xFF */
|
|
|
6179 |
/* Stack: int32? uint32 --> */
|
|
|
6180 |
/* */
|
|
|
6181 |
static void
|
|
|
6182 |
Ins_MIRP( INS_ARG )
|
|
|
6183 |
{
|
|
|
6184 |
FT_UShort point;
|
|
|
6185 |
FT_ULong cvtEntry;
|
|
|
6186 |
|
|
|
6187 |
FT_F26Dot6 cvt_dist,
|
|
|
6188 |
distance,
|
|
|
6189 |
cur_dist,
|
|
|
6190 |
org_dist;
|
|
|
6191 |
|
|
|
6192 |
|
|
|
6193 |
point = (FT_UShort)args[0];
|
|
|
6194 |
cvtEntry = (FT_ULong)( args[1] + 1 );
|
|
|
6195 |
|
|
|
6196 |
/* XXX: UNDOCUMENTED! cvt[-1] = 0 always */
|
|
|
6197 |
|
|
|
6198 |
if ( BOUNDS( point, CUR.zp1.n_points ) ||
|
|
|
6199 |
BOUNDSL( cvtEntry, CUR.cvtSize + 1 ) ||
|
|
|
6200 |
BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) )
|
|
|
6201 |
{
|
|
|
6202 |
if ( CUR.pedantic_hinting )
|
|
|
6203 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6204 |
goto Fail;
|
|
|
6205 |
}
|
|
|
6206 |
|
|
|
6207 |
if ( !cvtEntry )
|
|
|
6208 |
cvt_dist = 0;
|
|
|
6209 |
else
|
|
|
6210 |
cvt_dist = CUR_Func_read_cvt( cvtEntry - 1 );
|
|
|
6211 |
|
|
|
6212 |
/* single width test */
|
|
|
6213 |
|
|
|
6214 |
if ( FT_ABS( cvt_dist - CUR.GS.single_width_value ) <
|
|
|
6215 |
CUR.GS.single_width_cutin )
|
|
|
6216 |
{
|
|
|
6217 |
if ( cvt_dist >= 0 )
|
|
|
6218 |
cvt_dist = CUR.GS.single_width_value;
|
|
|
6219 |
else
|
|
|
6220 |
cvt_dist = -CUR.GS.single_width_value;
|
|
|
6221 |
}
|
|
|
6222 |
|
|
|
6223 |
/* XXX: UNDOCUMENTED! -- twilight zone */
|
|
|
6224 |
|
|
|
6225 |
if ( CUR.GS.gep1 == 0 )
|
|
|
6226 |
{
|
|
|
6227 |
CUR.zp1.org[point].x = CUR.zp0.org[CUR.GS.rp0].x +
|
|
|
6228 |
TT_MulFix14( (FT_UInt32)cvt_dist,
|
|
|
6229 |
CUR.GS.freeVector.x );
|
|
|
6230 |
|
|
|
6231 |
CUR.zp1.org[point].y = CUR.zp0.org[CUR.GS.rp0].y +
|
|
|
6232 |
TT_MulFix14( (FT_UInt32)cvt_dist,
|
|
|
6233 |
CUR.GS.freeVector.y );
|
|
|
6234 |
|
|
|
6235 |
CUR.zp1.cur[point] = CUR.zp0.cur[point];
|
|
|
6236 |
}
|
|
|
6237 |
|
|
|
6238 |
org_dist = CUR_Func_dualproj( &CUR.zp1.org[point],
|
|
|
6239 |
&CUR.zp0.org[CUR.GS.rp0] );
|
|
|
6240 |
cur_dist = CUR_Func_project ( &CUR.zp1.cur[point],
|
|
|
6241 |
&CUR.zp0.cur[CUR.GS.rp0] );
|
|
|
6242 |
|
|
|
6243 |
/* auto-flip test */
|
|
|
6244 |
|
|
|
6245 |
if ( CUR.GS.auto_flip )
|
|
|
6246 |
{
|
|
|
6247 |
if ( ( org_dist ^ cvt_dist ) < 0 )
|
|
|
6248 |
cvt_dist = -cvt_dist;
|
|
|
6249 |
}
|
|
|
6250 |
|
|
|
6251 |
/* control value cutin and round */
|
|
|
6252 |
|
|
|
6253 |
if ( ( CUR.opcode & 4 ) != 0 )
|
|
|
6254 |
{
|
|
|
6255 |
/* XXX: UNDOCUMENTED! Only perform cut-in test when both points */
|
|
|
6256 |
/* refer to the same zone. */
|
|
|
6257 |
|
|
|
6258 |
if ( CUR.GS.gep0 == CUR.GS.gep1 )
|
|
|
6259 |
{
|
|
|
6260 |
/* XXX: According to Greg Hitchcock, the following wording is */
|
|
|
6261 |
/* the right one: */
|
|
|
6262 |
/* */
|
|
|
6263 |
/* When the absolute difference between the value in */
|
|
|
6264 |
/* the table [CVT] and the measurement directly from */
|
|
|
6265 |
/* the outline is _greater_ than the cut_in value, the */
|
|
|
6266 |
/* outline measurement is used. */
|
|
|
6267 |
/* */
|
|
|
6268 |
/* This is from `instgly.doc'. The description in */
|
|
|
6269 |
/* `ttinst2.doc', version 1.66, is thus incorrect since */
|
|
|
6270 |
/* it implies `>=' instead of `>'. */
|
|
|
6271 |
|
|
|
6272 |
if ( FT_ABS( cvt_dist - org_dist ) > CUR.GS.control_value_cutin )
|
|
|
6273 |
cvt_dist = org_dist;
|
|
|
6274 |
}
|
|
|
6275 |
|
|
|
6276 |
distance = CUR_Func_round(
|
|
|
6277 |
cvt_dist,
|
|
|
6278 |
CUR.tt_metrics.compensations[CUR.opcode & 3] );
|
|
|
6279 |
}
|
|
|
6280 |
else
|
|
|
6281 |
distance = ROUND_None(
|
|
|
6282 |
cvt_dist,
|
|
|
6283 |
CUR.tt_metrics.compensations[CUR.opcode & 3] );
|
|
|
6284 |
|
|
|
6285 |
/* minimum distance test */
|
|
|
6286 |
|
|
|
6287 |
if ( ( CUR.opcode & 8 ) != 0 )
|
|
|
6288 |
{
|
|
|
6289 |
if ( org_dist >= 0 )
|
|
|
6290 |
{
|
|
|
6291 |
if ( distance < CUR.GS.minimum_distance )
|
|
|
6292 |
distance = CUR.GS.minimum_distance;
|
|
|
6293 |
}
|
|
|
6294 |
else
|
|
|
6295 |
{
|
|
|
6296 |
if ( distance > -CUR.GS.minimum_distance )
|
|
|
6297 |
distance = -CUR.GS.minimum_distance;
|
|
|
6298 |
}
|
|
|
6299 |
}
|
|
|
6300 |
|
|
|
6301 |
CUR_Func_move( &CUR.zp1, point, distance - cur_dist );
|
|
|
6302 |
|
|
|
6303 |
Fail:
|
|
|
6304 |
CUR.GS.rp1 = CUR.GS.rp0;
|
|
|
6305 |
|
|
|
6306 |
if ( ( CUR.opcode & 16 ) != 0 )
|
|
|
6307 |
CUR.GS.rp0 = point;
|
|
|
6308 |
|
|
|
6309 |
/* XXX: UNDOCUMENTED! */
|
|
|
6310 |
CUR.GS.rp2 = point;
|
|
|
6311 |
}
|
|
|
6312 |
|
|
|
6313 |
|
|
|
6314 |
/*************************************************************************/
|
|
|
6315 |
/* */
|
|
|
6316 |
/* ALIGNRP[]: ALIGN Relative Point */
|
|
|
6317 |
/* Opcode range: 0x3C */
|
|
|
6318 |
/* Stack: uint32 uint32... --> */
|
|
|
6319 |
/* */
|
|
|
6320 |
static void
|
|
|
6321 |
Ins_ALIGNRP( INS_ARG )
|
|
|
6322 |
{
|
|
|
6323 |
FT_UShort point;
|
|
|
6324 |
FT_F26Dot6 distance;
|
|
|
6325 |
|
|
|
6326 |
FT_UNUSED_ARG;
|
|
|
6327 |
|
|
|
6328 |
|
|
|
6329 |
if ( CUR.top < CUR.GS.loop ||
|
|
|
6330 |
BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) )
|
|
|
6331 |
{
|
|
|
6332 |
if ( CUR.pedantic_hinting )
|
|
|
6333 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6334 |
goto Fail;
|
|
|
6335 |
}
|
|
|
6336 |
|
|
|
6337 |
while ( CUR.GS.loop > 0 )
|
|
|
6338 |
{
|
|
|
6339 |
CUR.args--;
|
|
|
6340 |
|
|
|
6341 |
point = (FT_UShort)CUR.stack[CUR.args];
|
|
|
6342 |
|
|
|
6343 |
if ( BOUNDS( point, CUR.zp1.n_points ) )
|
|
|
6344 |
{
|
|
|
6345 |
if ( CUR.pedantic_hinting )
|
|
|
6346 |
{
|
|
|
6347 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6348 |
return;
|
|
|
6349 |
}
|
|
|
6350 |
}
|
|
|
6351 |
else
|
|
|
6352 |
{
|
|
|
6353 |
distance = CUR_Func_project( CUR.zp1.cur + point,
|
|
|
6354 |
CUR.zp0.cur + CUR.GS.rp0 );
|
|
|
6355 |
|
|
|
6356 |
CUR_Func_move( &CUR.zp1, point, -distance );
|
|
|
6357 |
}
|
|
|
6358 |
|
|
|
6359 |
CUR.GS.loop--;
|
|
|
6360 |
}
|
|
|
6361 |
|
|
|
6362 |
Fail:
|
|
|
6363 |
CUR.GS.loop = 1;
|
|
|
6364 |
CUR.new_top = CUR.args;
|
|
|
6365 |
}
|
|
|
6366 |
|
|
|
6367 |
|
|
|
6368 |
/*************************************************************************/
|
|
|
6369 |
/* */
|
|
|
6370 |
/* ISECT[]: moves point to InterSECTion */
|
|
|
6371 |
/* Opcode range: 0x0F */
|
|
|
6372 |
/* Stack: 5 * uint32 --> */
|
|
|
6373 |
/* */
|
|
|
6374 |
static void
|
|
|
6375 |
Ins_ISECT( INS_ARG )
|
|
|
6376 |
{
|
|
|
6377 |
FT_UShort point,
|
|
|
6378 |
a0, a1,
|
|
|
6379 |
b0, b1;
|
|
|
6380 |
|
|
|
6381 |
FT_F26Dot6 discriminant;
|
|
|
6382 |
|
|
|
6383 |
FT_F26Dot6 dx, dy,
|
|
|
6384 |
dax, day,
|
|
|
6385 |
dbx, dby;
|
|
|
6386 |
|
|
|
6387 |
FT_F26Dot6 val;
|
|
|
6388 |
|
|
|
6389 |
FT_Vector R;
|
|
|
6390 |
|
|
|
6391 |
|
|
|
6392 |
point = (FT_UShort)args[0];
|
|
|
6393 |
|
|
|
6394 |
a0 = (FT_UShort)args[1];
|
|
|
6395 |
a1 = (FT_UShort)args[2];
|
|
|
6396 |
b0 = (FT_UShort)args[3];
|
|
|
6397 |
b1 = (FT_UShort)args[4];
|
|
|
6398 |
|
|
|
6399 |
if ( BOUNDS( b0, CUR.zp0.n_points ) ||
|
|
|
6400 |
BOUNDS( b1, CUR.zp0.n_points ) ||
|
|
|
6401 |
BOUNDS( a0, CUR.zp1.n_points ) ||
|
|
|
6402 |
BOUNDS( a1, CUR.zp1.n_points ) ||
|
|
|
6403 |
BOUNDS( point, CUR.zp2.n_points ) )
|
|
|
6404 |
{
|
|
|
6405 |
if ( CUR.pedantic_hinting )
|
|
|
6406 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6407 |
return;
|
|
|
6408 |
}
|
|
|
6409 |
|
|
|
6410 |
dbx = CUR.zp0.cur[b1].x - CUR.zp0.cur[b0].x;
|
|
|
6411 |
dby = CUR.zp0.cur[b1].y - CUR.zp0.cur[b0].y;
|
|
|
6412 |
|
|
|
6413 |
dax = CUR.zp1.cur[a1].x - CUR.zp1.cur[a0].x;
|
|
|
6414 |
day = CUR.zp1.cur[a1].y - CUR.zp1.cur[a0].y;
|
|
|
6415 |
|
|
|
6416 |
dx = CUR.zp0.cur[b0].x - CUR.zp1.cur[a0].x;
|
|
|
6417 |
dy = CUR.zp0.cur[b0].y - CUR.zp1.cur[a0].y;
|
|
|
6418 |
|
|
|
6419 |
CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_BOTH;
|
|
|
6420 |
|
|
|
6421 |
discriminant = TT_MULDIV( dax, -dby, 0x40 ) +
|
|
|
6422 |
TT_MULDIV( day, dbx, 0x40 );
|
|
|
6423 |
|
|
|
6424 |
if ( FT_ABS( discriminant ) >= 0x40 )
|
|
|
6425 |
{
|
|
|
6426 |
val = TT_MULDIV( dx, -dby, 0x40 ) + TT_MULDIV( dy, dbx, 0x40 );
|
|
|
6427 |
|
|
|
6428 |
R.x = TT_MULDIV( val, dax, discriminant );
|
|
|
6429 |
R.y = TT_MULDIV( val, day, discriminant );
|
|
|
6430 |
|
|
|
6431 |
CUR.zp2.cur[point].x = CUR.zp1.cur[a0].x + R.x;
|
|
|
6432 |
CUR.zp2.cur[point].y = CUR.zp1.cur[a0].y + R.y;
|
|
|
6433 |
}
|
|
|
6434 |
else
|
|
|
6435 |
{
|
|
|
6436 |
/* else, take the middle of the middles of A and B */
|
|
|
6437 |
|
|
|
6438 |
CUR.zp2.cur[point].x = ( CUR.zp1.cur[a0].x +
|
|
|
6439 |
CUR.zp1.cur[a1].x +
|
|
|
6440 |
CUR.zp0.cur[b0].x +
|
|
|
6441 |
CUR.zp0.cur[b1].x ) / 4;
|
|
|
6442 |
CUR.zp2.cur[point].y = ( CUR.zp1.cur[a0].y +
|
|
|
6443 |
CUR.zp1.cur[a1].y +
|
|
|
6444 |
CUR.zp0.cur[b0].y +
|
|
|
6445 |
CUR.zp0.cur[b1].y ) / 4;
|
|
|
6446 |
}
|
|
|
6447 |
}
|
|
|
6448 |
|
|
|
6449 |
|
|
|
6450 |
/*************************************************************************/
|
|
|
6451 |
/* */
|
|
|
6452 |
/* ALIGNPTS[]: ALIGN PoinTS */
|
|
|
6453 |
/* Opcode range: 0x27 */
|
|
|
6454 |
/* Stack: uint32 uint32 --> */
|
|
|
6455 |
/* */
|
|
|
6456 |
static void
|
|
|
6457 |
Ins_ALIGNPTS( INS_ARG )
|
|
|
6458 |
{
|
|
|
6459 |
FT_UShort p1, p2;
|
|
|
6460 |
FT_F26Dot6 distance;
|
|
|
6461 |
|
|
|
6462 |
|
|
|
6463 |
p1 = (FT_UShort)args[0];
|
|
|
6464 |
p2 = (FT_UShort)args[1];
|
|
|
6465 |
|
|
|
6466 |
if ( BOUNDS( p1, CUR.zp1.n_points ) ||
|
|
|
6467 |
BOUNDS( p2, CUR.zp0.n_points ) )
|
|
|
6468 |
{
|
|
|
6469 |
if ( CUR.pedantic_hinting )
|
|
|
6470 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6471 |
return;
|
|
|
6472 |
}
|
|
|
6473 |
|
|
|
6474 |
distance = CUR_Func_project( CUR.zp0.cur + p2,
|
|
|
6475 |
CUR.zp1.cur + p1 ) / 2;
|
|
|
6476 |
|
|
|
6477 |
CUR_Func_move( &CUR.zp1, p1, distance );
|
|
|
6478 |
CUR_Func_move( &CUR.zp0, p2, -distance );
|
|
|
6479 |
}
|
|
|
6480 |
|
|
|
6481 |
|
|
|
6482 |
/*************************************************************************/
|
|
|
6483 |
/* */
|
|
|
6484 |
/* IP[]: Interpolate Point */
|
|
|
6485 |
/* Opcode range: 0x39 */
|
|
|
6486 |
/* Stack: uint32... --> */
|
|
|
6487 |
/* */
|
|
|
6488 |
|
|
|
6489 |
/* SOMETIMES, DUMBER CODE IS BETTER CODE */
|
|
|
6490 |
|
|
|
6491 |
static void
|
|
|
6492 |
Ins_IP( INS_ARG )
|
|
|
6493 |
{
|
|
|
6494 |
FT_F26Dot6 old_range, cur_range;
|
|
|
6495 |
FT_Vector* orus_base;
|
|
|
6496 |
FT_Vector* cur_base;
|
|
|
6497 |
FT_Int twilight;
|
|
|
6498 |
|
|
|
6499 |
FT_UNUSED_ARG;
|
|
|
6500 |
|
|
|
6501 |
|
|
|
6502 |
if ( CUR.top < CUR.GS.loop )
|
|
|
6503 |
{
|
|
|
6504 |
if ( CUR.pedantic_hinting )
|
|
|
6505 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6506 |
goto Fail;
|
|
|
6507 |
}
|
|
|
6508 |
|
|
|
6509 |
/*
|
|
|
6510 |
* We need to deal in a special way with the twilight zone.
|
|
|
6511 |
* Otherwise, by definition, the value of CUR.twilight.orus[n] is (0,0),
|
|
|
6512 |
* for every n.
|
|
|
6513 |
*/
|
|
|
6514 |
twilight = CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 || CUR.GS.gep2 == 0;
|
|
|
6515 |
|
|
|
6516 |
if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) )
|
|
|
6517 |
{
|
|
|
6518 |
if ( CUR.pedantic_hinting )
|
|
|
6519 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6520 |
goto Fail;
|
|
|
6521 |
}
|
|
|
6522 |
|
|
|
6523 |
if ( twilight )
|
|
|
6524 |
orus_base = &CUR.zp0.org[CUR.GS.rp1];
|
|
|
6525 |
else
|
|
|
6526 |
orus_base = &CUR.zp0.orus[CUR.GS.rp1];
|
|
|
6527 |
|
|
|
6528 |
cur_base = &CUR.zp0.cur[CUR.GS.rp1];
|
|
|
6529 |
|
|
|
6530 |
/* XXX: There are some glyphs in some braindead but popular */
|
|
|
6531 |
/* fonts out there (e.g. [aeu]grave in monotype.ttf) */
|
|
|
6532 |
/* calling IP[] with bad values of rp[12]. */
|
|
|
6533 |
/* Do something sane when this odd thing happens. */
|
|
|
6534 |
if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) ||
|
|
|
6535 |
BOUNDS( CUR.GS.rp2, CUR.zp1.n_points ) )
|
|
|
6536 |
{
|
|
|
6537 |
old_range = 0;
|
|
|
6538 |
cur_range = 0;
|
|
|
6539 |
}
|
|
|
6540 |
else
|
|
|
6541 |
{
|
|
|
6542 |
if ( twilight )
|
|
|
6543 |
old_range = CUR_Func_dualproj( &CUR.zp1.org[CUR.GS.rp2],
|
|
|
6544 |
orus_base );
|
|
|
6545 |
else
|
|
|
6546 |
old_range = CUR_Func_dualproj( &CUR.zp1.orus[CUR.GS.rp2],
|
|
|
6547 |
orus_base );
|
|
|
6548 |
|
|
|
6549 |
cur_range = CUR_Func_project ( &CUR.zp1.cur[CUR.GS.rp2], cur_base );
|
|
|
6550 |
}
|
|
|
6551 |
|
|
|
6552 |
for ( ; CUR.GS.loop > 0; --CUR.GS.loop )
|
|
|
6553 |
{
|
|
|
6554 |
FT_UInt point = (FT_UInt)CUR.stack[--CUR.args];
|
|
|
6555 |
FT_F26Dot6 org_dist, cur_dist, new_dist;
|
|
|
6556 |
|
|
|
6557 |
|
|
|
6558 |
/* check point bounds */
|
|
|
6559 |
if ( BOUNDS( point, CUR.zp2.n_points ) )
|
|
|
6560 |
{
|
|
|
6561 |
if ( CUR.pedantic_hinting )
|
|
|
6562 |
{
|
|
|
6563 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6564 |
return;
|
|
|
6565 |
}
|
|
|
6566 |
continue;
|
|
|
6567 |
}
|
|
|
6568 |
|
|
|
6569 |
if ( twilight )
|
|
|
6570 |
org_dist = CUR_Func_dualproj( &CUR.zp2.org[point], orus_base );
|
|
|
6571 |
else
|
|
|
6572 |
org_dist = CUR_Func_dualproj( &CUR.zp2.orus[point], orus_base );
|
|
|
6573 |
|
|
|
6574 |
cur_dist = CUR_Func_project ( &CUR.zp2.cur[point], cur_base );
|
|
|
6575 |
|
|
|
6576 |
if ( org_dist )
|
|
|
6577 |
new_dist = ( old_range != 0 )
|
|
|
6578 |
? TT_MULDIV( org_dist, cur_range, old_range )
|
|
|
6579 |
: cur_dist;
|
|
|
6580 |
else
|
|
|
6581 |
new_dist = 0;
|
|
|
6582 |
|
|
|
6583 |
CUR_Func_move( &CUR.zp2, (FT_UShort)point, new_dist - cur_dist );
|
|
|
6584 |
}
|
|
|
6585 |
|
|
|
6586 |
Fail:
|
|
|
6587 |
CUR.GS.loop = 1;
|
|
|
6588 |
CUR.new_top = CUR.args;
|
|
|
6589 |
}
|
|
|
6590 |
|
|
|
6591 |
|
|
|
6592 |
/*************************************************************************/
|
|
|
6593 |
/* */
|
|
|
6594 |
/* UTP[a]: UnTouch Point */
|
|
|
6595 |
/* Opcode range: 0x29 */
|
|
|
6596 |
/* Stack: uint32 --> */
|
|
|
6597 |
/* */
|
|
|
6598 |
static void
|
|
|
6599 |
Ins_UTP( INS_ARG )
|
|
|
6600 |
{
|
|
|
6601 |
FT_UShort point;
|
|
|
6602 |
FT_Byte mask;
|
|
|
6603 |
|
|
|
6604 |
|
|
|
6605 |
point = (FT_UShort)args[0];
|
|
|
6606 |
|
|
|
6607 |
if ( BOUNDS( point, CUR.zp0.n_points ) )
|
|
|
6608 |
{
|
|
|
6609 |
if ( CUR.pedantic_hinting )
|
|
|
6610 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6611 |
return;
|
|
|
6612 |
}
|
|
|
6613 |
|
|
|
6614 |
mask = 0xFF;
|
|
|
6615 |
|
|
|
6616 |
if ( CUR.GS.freeVector.x != 0 )
|
|
|
6617 |
mask &= ~FT_CURVE_TAG_TOUCH_X;
|
|
|
6618 |
|
|
|
6619 |
if ( CUR.GS.freeVector.y != 0 )
|
|
|
6620 |
mask &= ~FT_CURVE_TAG_TOUCH_Y;
|
|
|
6621 |
|
|
|
6622 |
CUR.zp0.tags[point] &= mask;
|
|
|
6623 |
}
|
|
|
6624 |
|
|
|
6625 |
|
|
|
6626 |
/* Local variables for Ins_IUP: */
|
|
|
6627 |
typedef struct IUP_WorkerRec_
|
|
|
6628 |
{
|
|
|
6629 |
FT_Vector* orgs; /* original and current coordinate */
|
|
|
6630 |
FT_Vector* curs; /* arrays */
|
|
|
6631 |
FT_Vector* orus;
|
|
|
6632 |
FT_UInt max_points;
|
|
|
6633 |
|
|
|
6634 |
} IUP_WorkerRec, *IUP_Worker;
|
|
|
6635 |
|
|
|
6636 |
|
|
|
6637 |
static void
|
|
|
6638 |
_iup_worker_shift( IUP_Worker worker,
|
|
|
6639 |
FT_UInt p1,
|
|
|
6640 |
FT_UInt p2,
|
|
|
6641 |
FT_UInt p )
|
|
|
6642 |
{
|
|
|
6643 |
FT_UInt i;
|
|
|
6644 |
FT_F26Dot6 dx;
|
|
|
6645 |
|
|
|
6646 |
|
|
|
6647 |
dx = worker->curs[p].x - worker->orgs[p].x;
|
|
|
6648 |
if ( dx != 0 )
|
|
|
6649 |
{
|
|
|
6650 |
for ( i = p1; i < p; i++ )
|
|
|
6651 |
worker->curs[i].x += dx;
|
|
|
6652 |
|
|
|
6653 |
for ( i = p + 1; i <= p2; i++ )
|
|
|
6654 |
worker->curs[i].x += dx;
|
|
|
6655 |
}
|
|
|
6656 |
}
|
|
|
6657 |
|
|
|
6658 |
|
|
|
6659 |
static void
|
|
|
6660 |
_iup_worker_interpolate( IUP_Worker worker,
|
|
|
6661 |
FT_UInt p1,
|
|
|
6662 |
FT_UInt p2,
|
|
|
6663 |
FT_UInt ref1,
|
|
|
6664 |
FT_UInt ref2 )
|
|
|
6665 |
{
|
|
|
6666 |
FT_UInt i;
|
|
|
6667 |
FT_F26Dot6 orus1, orus2, org1, org2, delta1, delta2;
|
|
|
6668 |
|
|
|
6669 |
|
|
|
6670 |
if ( p1 > p2 )
|
|
|
6671 |
return;
|
|
|
6672 |
|
|
|
6673 |
if ( BOUNDS( ref1, worker->max_points ) ||
|
|
|
6674 |
BOUNDS( ref2, worker->max_points ) )
|
|
|
6675 |
return;
|
|
|
6676 |
|
|
|
6677 |
orus1 = worker->orus[ref1].x;
|
|
|
6678 |
orus2 = worker->orus[ref2].x;
|
|
|
6679 |
|
|
|
6680 |
if ( orus1 > orus2 )
|
|
|
6681 |
{
|
|
|
6682 |
FT_F26Dot6 tmp_o;
|
|
|
6683 |
FT_UInt tmp_r;
|
|
|
6684 |
|
|
|
6685 |
|
|
|
6686 |
tmp_o = orus1;
|
|
|
6687 |
orus1 = orus2;
|
|
|
6688 |
orus2 = tmp_o;
|
|
|
6689 |
|
|
|
6690 |
tmp_r = ref1;
|
|
|
6691 |
ref1 = ref2;
|
|
|
6692 |
ref2 = tmp_r;
|
|
|
6693 |
}
|
|
|
6694 |
|
|
|
6695 |
org1 = worker->orgs[ref1].x;
|
|
|
6696 |
org2 = worker->orgs[ref2].x;
|
|
|
6697 |
delta1 = worker->curs[ref1].x - org1;
|
|
|
6698 |
delta2 = worker->curs[ref2].x - org2;
|
|
|
6699 |
|
|
|
6700 |
if ( orus1 == orus2 )
|
|
|
6701 |
{
|
|
|
6702 |
/* simple shift of untouched points */
|
|
|
6703 |
for ( i = p1; i <= p2; i++ )
|
|
|
6704 |
{
|
|
|
6705 |
FT_F26Dot6 x = worker->orgs[i].x;
|
|
|
6706 |
|
|
|
6707 |
|
|
|
6708 |
if ( x <= org1 )
|
|
|
6709 |
x += delta1;
|
|
|
6710 |
else
|
|
|
6711 |
x += delta2;
|
|
|
6712 |
|
|
|
6713 |
worker->curs[i].x = x;
|
|
|
6714 |
}
|
|
|
6715 |
}
|
|
|
6716 |
else
|
|
|
6717 |
{
|
|
|
6718 |
FT_Fixed scale = 0;
|
|
|
6719 |
FT_Bool scale_valid = 0;
|
|
|
6720 |
|
|
|
6721 |
|
|
|
6722 |
/* interpolation */
|
|
|
6723 |
for ( i = p1; i <= p2; i++ )
|
|
|
6724 |
{
|
|
|
6725 |
FT_F26Dot6 x = worker->orgs[i].x;
|
|
|
6726 |
|
|
|
6727 |
|
|
|
6728 |
if ( x <= org1 )
|
|
|
6729 |
x += delta1;
|
|
|
6730 |
|
|
|
6731 |
else if ( x >= org2 )
|
|
|
6732 |
x += delta2;
|
|
|
6733 |
|
|
|
6734 |
else
|
|
|
6735 |
{
|
|
|
6736 |
if ( !scale_valid )
|
|
|
6737 |
{
|
|
|
6738 |
scale_valid = 1;
|
|
|
6739 |
scale = TT_MULDIV( org2 + delta2 - ( org1 + delta1 ),
|
|
|
6740 |
0x10000L, orus2 - orus1 );
|
|
|
6741 |
}
|
|
|
6742 |
|
|
|
6743 |
x = ( org1 + delta1 ) +
|
|
|
6744 |
TT_MULFIX( worker->orus[i].x - orus1, scale );
|
|
|
6745 |
}
|
|
|
6746 |
worker->curs[i].x = x;
|
|
|
6747 |
}
|
|
|
6748 |
}
|
|
|
6749 |
}
|
|
|
6750 |
|
|
|
6751 |
|
|
|
6752 |
/*************************************************************************/
|
|
|
6753 |
/* */
|
|
|
6754 |
/* IUP[a]: Interpolate Untouched Points */
|
|
|
6755 |
/* Opcode range: 0x30-0x31 */
|
|
|
6756 |
/* Stack: --> */
|
|
|
6757 |
/* */
|
|
|
6758 |
static void
|
|
|
6759 |
Ins_IUP( INS_ARG )
|
|
|
6760 |
{
|
|
|
6761 |
IUP_WorkerRec V;
|
|
|
6762 |
FT_Byte mask;
|
|
|
6763 |
|
|
|
6764 |
FT_UInt first_point; /* first point of contour */
|
|
|
6765 |
FT_UInt end_point; /* end point (last+1) of contour */
|
|
|
6766 |
|
|
|
6767 |
FT_UInt first_touched; /* first touched point in contour */
|
|
|
6768 |
FT_UInt cur_touched; /* current touched point in contour */
|
|
|
6769 |
|
|
|
6770 |
FT_UInt point; /* current point */
|
|
|
6771 |
FT_Short contour; /* current contour */
|
|
|
6772 |
|
|
|
6773 |
FT_UNUSED_ARG;
|
|
|
6774 |
|
|
|
6775 |
|
|
|
6776 |
/* ignore empty outlines */
|
|
|
6777 |
if ( CUR.pts.n_contours == 0 )
|
|
|
6778 |
return;
|
|
|
6779 |
|
|
|
6780 |
if ( CUR.opcode & 1 )
|
|
|
6781 |
{
|
|
|
6782 |
mask = FT_CURVE_TAG_TOUCH_X;
|
|
|
6783 |
V.orgs = CUR.pts.org;
|
|
|
6784 |
V.curs = CUR.pts.cur;
|
|
|
6785 |
V.orus = CUR.pts.orus;
|
|
|
6786 |
}
|
|
|
6787 |
else
|
|
|
6788 |
{
|
|
|
6789 |
mask = FT_CURVE_TAG_TOUCH_Y;
|
|
|
6790 |
V.orgs = (FT_Vector*)( (FT_Pos*)CUR.pts.org + 1 );
|
|
|
6791 |
V.curs = (FT_Vector*)( (FT_Pos*)CUR.pts.cur + 1 );
|
|
|
6792 |
V.orus = (FT_Vector*)( (FT_Pos*)CUR.pts.orus + 1 );
|
|
|
6793 |
}
|
|
|
6794 |
V.max_points = CUR.pts.n_points;
|
|
|
6795 |
|
|
|
6796 |
contour = 0;
|
|
|
6797 |
point = 0;
|
|
|
6798 |
|
|
|
6799 |
do
|
|
|
6800 |
{
|
|
|
6801 |
end_point = CUR.pts.contours[contour] - CUR.pts.first_point;
|
|
|
6802 |
first_point = point;
|
|
|
6803 |
|
|
|
6804 |
if ( BOUNDS ( end_point, CUR.pts.n_points ) )
|
|
|
6805 |
end_point = CUR.pts.n_points - 1;
|
|
|
6806 |
|
|
|
6807 |
while ( point <= end_point && ( CUR.pts.tags[point] & mask ) == 0 )
|
|
|
6808 |
point++;
|
|
|
6809 |
|
|
|
6810 |
if ( point <= end_point )
|
|
|
6811 |
{
|
|
|
6812 |
first_touched = point;
|
|
|
6813 |
cur_touched = point;
|
|
|
6814 |
|
|
|
6815 |
point++;
|
|
|
6816 |
|
|
|
6817 |
while ( point <= end_point )
|
|
|
6818 |
{
|
|
|
6819 |
if ( ( CUR.pts.tags[point] & mask ) != 0 )
|
|
|
6820 |
{
|
|
|
6821 |
_iup_worker_interpolate( &V,
|
|
|
6822 |
cur_touched + 1,
|
|
|
6823 |
point - 1,
|
|
|
6824 |
cur_touched,
|
|
|
6825 |
point );
|
|
|
6826 |
cur_touched = point;
|
|
|
6827 |
}
|
|
|
6828 |
|
|
|
6829 |
point++;
|
|
|
6830 |
}
|
|
|
6831 |
|
|
|
6832 |
if ( cur_touched == first_touched )
|
|
|
6833 |
_iup_worker_shift( &V, first_point, end_point, cur_touched );
|
|
|
6834 |
else
|
|
|
6835 |
{
|
|
|
6836 |
_iup_worker_interpolate( &V,
|
|
|
6837 |
(FT_UShort)( cur_touched + 1 ),
|
|
|
6838 |
end_point,
|
|
|
6839 |
cur_touched,
|
|
|
6840 |
first_touched );
|
|
|
6841 |
|
|
|
6842 |
if ( first_touched > 0 )
|
|
|
6843 |
_iup_worker_interpolate( &V,
|
|
|
6844 |
first_point,
|
|
|
6845 |
first_touched - 1,
|
|
|
6846 |
cur_touched,
|
|
|
6847 |
first_touched );
|
|
|
6848 |
}
|
|
|
6849 |
}
|
|
|
6850 |
contour++;
|
|
|
6851 |
} while ( contour < CUR.pts.n_contours );
|
|
|
6852 |
}
|
|
|
6853 |
|
|
|
6854 |
|
|
|
6855 |
/*************************************************************************/
|
|
|
6856 |
/* */
|
|
|
6857 |
/* DELTAPn[]: DELTA exceptions P1, P2, P3 */
|
|
|
6858 |
/* Opcode range: 0x5D,0x71,0x72 */
|
|
|
6859 |
/* Stack: uint32 (2 * uint32)... --> */
|
|
|
6860 |
/* */
|
|
|
6861 |
static void
|
|
|
6862 |
Ins_DELTAP( INS_ARG )
|
|
|
6863 |
{
|
|
|
6864 |
FT_ULong k, nump;
|
|
|
6865 |
FT_UShort A;
|
|
|
6866 |
FT_ULong C;
|
|
|
6867 |
FT_Long B;
|
|
|
6868 |
|
|
|
6869 |
|
|
|
6870 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
6871 |
/* Delta hinting is covered by US Patent 5159668. */
|
|
|
6872 |
if ( CUR.face->unpatented_hinting )
|
|
|
6873 |
{
|
|
|
6874 |
FT_Long n = args[0] * 2;
|
|
|
6875 |
|
|
|
6876 |
|
|
|
6877 |
if ( CUR.args < n )
|
|
|
6878 |
{
|
|
|
6879 |
if ( CUR.pedantic_hinting )
|
|
|
6880 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
6881 |
n = CUR.args;
|
|
|
6882 |
}
|
|
|
6883 |
|
|
|
6884 |
CUR.args -= n;
|
|
|
6885 |
CUR.new_top = CUR.args;
|
|
|
6886 |
return;
|
|
|
6887 |
}
|
|
|
6888 |
#endif
|
|
|
6889 |
|
|
|
6890 |
nump = (FT_ULong)args[0]; /* some points theoretically may occur more
|
|
|
6891 |
than once, thus UShort isn't enough */
|
|
|
6892 |
|
|
|
6893 |
for ( k = 1; k <= nump; k++ )
|
|
|
6894 |
{
|
|
|
6895 |
if ( CUR.args < 2 )
|
|
|
6896 |
{
|
|
|
6897 |
if ( CUR.pedantic_hinting )
|
|
|
6898 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
6899 |
CUR.args = 0;
|
|
|
6900 |
goto Fail;
|
|
|
6901 |
}
|
|
|
6902 |
|
|
|
6903 |
CUR.args -= 2;
|
|
|
6904 |
|
|
|
6905 |
A = (FT_UShort)CUR.stack[CUR.args + 1];
|
|
|
6906 |
B = CUR.stack[CUR.args];
|
|
|
6907 |
|
|
|
6908 |
/* XXX: Because some popular fonts contain some invalid DeltaP */
|
|
|
6909 |
/* instructions, we simply ignore them when the stacked */
|
|
|
6910 |
/* point reference is off limit, rather than returning an */
|
|
|
6911 |
/* error. As a delta instruction doesn't change a glyph */
|
|
|
6912 |
/* in great ways, this shouldn't be a problem. */
|
|
|
6913 |
|
|
|
6914 |
if ( !BOUNDS( A, CUR.zp0.n_points ) )
|
|
|
6915 |
{
|
|
|
6916 |
C = ( (FT_ULong)B & 0xF0 ) >> 4;
|
|
|
6917 |
|
|
|
6918 |
switch ( CUR.opcode )
|
|
|
6919 |
{
|
|
|
6920 |
case 0x5D:
|
|
|
6921 |
break;
|
|
|
6922 |
|
|
|
6923 |
case 0x71:
|
|
|
6924 |
C += 16;
|
|
|
6925 |
break;
|
|
|
6926 |
|
|
|
6927 |
case 0x72:
|
|
|
6928 |
C += 32;
|
|
|
6929 |
break;
|
|
|
6930 |
}
|
|
|
6931 |
|
|
|
6932 |
C += CUR.GS.delta_base;
|
|
|
6933 |
|
|
|
6934 |
if ( CURRENT_Ppem() == (FT_Long)C )
|
|
|
6935 |
{
|
|
|
6936 |
B = ( (FT_ULong)B & 0xF ) - 8;
|
|
|
6937 |
if ( B >= 0 )
|
|
|
6938 |
B++;
|
|
|
6939 |
B = B * 64 / ( 1L << CUR.GS.delta_shift );
|
|
|
6940 |
|
|
|
6941 |
CUR_Func_move( &CUR.zp0, A, B );
|
|
|
6942 |
}
|
|
|
6943 |
}
|
|
|
6944 |
else
|
|
|
6945 |
if ( CUR.pedantic_hinting )
|
|
|
6946 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
6947 |
}
|
|
|
6948 |
|
|
|
6949 |
Fail:
|
|
|
6950 |
CUR.new_top = CUR.args;
|
|
|
6951 |
}
|
|
|
6952 |
|
|
|
6953 |
|
|
|
6954 |
/*************************************************************************/
|
|
|
6955 |
/* */
|
|
|
6956 |
/* DELTACn[]: DELTA exceptions C1, C2, C3 */
|
|
|
6957 |
/* Opcode range: 0x73,0x74,0x75 */
|
|
|
6958 |
/* Stack: uint32 (2 * uint32)... --> */
|
|
|
6959 |
/* */
|
|
|
6960 |
static void
|
|
|
6961 |
Ins_DELTAC( INS_ARG )
|
|
|
6962 |
{
|
|
|
6963 |
FT_ULong nump, k;
|
|
|
6964 |
FT_ULong A, C;
|
|
|
6965 |
FT_Long B;
|
|
|
6966 |
|
|
|
6967 |
|
|
|
6968 |
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
|
6969 |
/* Delta hinting is covered by US Patent 5159668. */
|
|
|
6970 |
if ( CUR.face->unpatented_hinting )
|
|
|
6971 |
{
|
|
|
6972 |
FT_Long n = args[0] * 2;
|
|
|
6973 |
|
|
|
6974 |
|
|
|
6975 |
if ( CUR.args < n )
|
|
|
6976 |
{
|
|
|
6977 |
if ( CUR.pedantic_hinting )
|
|
|
6978 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
6979 |
n = CUR.args;
|
|
|
6980 |
}
|
|
|
6981 |
|
|
|
6982 |
CUR.args -= n;
|
|
|
6983 |
CUR.new_top = CUR.args;
|
|
|
6984 |
return;
|
|
|
6985 |
}
|
|
|
6986 |
#endif
|
|
|
6987 |
|
|
|
6988 |
nump = (FT_ULong)args[0];
|
|
|
6989 |
|
|
|
6990 |
for ( k = 1; k <= nump; k++ )
|
|
|
6991 |
{
|
|
|
6992 |
if ( CUR.args < 2 )
|
|
|
6993 |
{
|
|
|
6994 |
if ( CUR.pedantic_hinting )
|
|
|
6995 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
6996 |
CUR.args = 0;
|
|
|
6997 |
goto Fail;
|
|
|
6998 |
}
|
|
|
6999 |
|
|
|
7000 |
CUR.args -= 2;
|
|
|
7001 |
|
|
|
7002 |
A = (FT_ULong)CUR.stack[CUR.args + 1];
|
|
|
7003 |
B = CUR.stack[CUR.args];
|
|
|
7004 |
|
|
|
7005 |
if ( BOUNDSL( A, CUR.cvtSize ) )
|
|
|
7006 |
{
|
|
|
7007 |
if ( CUR.pedantic_hinting )
|
|
|
7008 |
{
|
|
|
7009 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
7010 |
return;
|
|
|
7011 |
}
|
|
|
7012 |
}
|
|
|
7013 |
else
|
|
|
7014 |
{
|
|
|
7015 |
C = ( (FT_ULong)B & 0xF0 ) >> 4;
|
|
|
7016 |
|
|
|
7017 |
switch ( CUR.opcode )
|
|
|
7018 |
{
|
|
|
7019 |
case 0x73:
|
|
|
7020 |
break;
|
|
|
7021 |
|
|
|
7022 |
case 0x74:
|
|
|
7023 |
C += 16;
|
|
|
7024 |
break;
|
|
|
7025 |
|
|
|
7026 |
case 0x75:
|
|
|
7027 |
C += 32;
|
|
|
7028 |
break;
|
|
|
7029 |
}
|
|
|
7030 |
|
|
|
7031 |
C += CUR.GS.delta_base;
|
|
|
7032 |
|
|
|
7033 |
if ( CURRENT_Ppem() == (FT_Long)C )
|
|
|
7034 |
{
|
|
|
7035 |
B = ( (FT_ULong)B & 0xF ) - 8;
|
|
|
7036 |
if ( B >= 0 )
|
|
|
7037 |
B++;
|
|
|
7038 |
B = B * 64 / ( 1L << CUR.GS.delta_shift );
|
|
|
7039 |
|
|
|
7040 |
CUR_Func_move_cvt( A, B );
|
|
|
7041 |
}
|
|
|
7042 |
}
|
|
|
7043 |
}
|
|
|
7044 |
|
|
|
7045 |
Fail:
|
|
|
7046 |
CUR.new_top = CUR.args;
|
|
|
7047 |
}
|
|
|
7048 |
|
|
|
7049 |
|
|
|
7050 |
/*************************************************************************/
|
|
|
7051 |
/* */
|
|
|
7052 |
/* MISC. INSTRUCTIONS */
|
|
|
7053 |
/* */
|
|
|
7054 |
/*************************************************************************/
|
|
|
7055 |
|
|
|
7056 |
|
|
|
7057 |
/*************************************************************************/
|
|
|
7058 |
/* */
|
|
|
7059 |
/* GETINFO[]: GET INFOrmation */
|
|
|
7060 |
/* Opcode range: 0x88 */
|
|
|
7061 |
/* Stack: uint32 --> uint32 */
|
|
|
7062 |
/* */
|
|
|
7063 |
static void
|
|
|
7064 |
Ins_GETINFO( INS_ARG )
|
|
|
7065 |
{
|
|
|
7066 |
FT_Long K;
|
|
|
7067 |
|
|
|
7068 |
|
|
|
7069 |
K = 0;
|
|
|
7070 |
|
|
|
7071 |
/* We return MS rasterizer version 1.7 for the font scaler. */
|
|
|
7072 |
if ( ( args[0] & 1 ) != 0 )
|
|
|
7073 |
K = 35;
|
|
|
7074 |
|
|
|
7075 |
/* Has the glyph been rotated? */
|
|
|
7076 |
if ( ( args[0] & 2 ) != 0 && CUR.tt_metrics.rotated )
|
|
|
7077 |
K |= 0x80;
|
|
|
7078 |
|
|
|
7079 |
/* Has the glyph been stretched? */
|
|
|
7080 |
if ( ( args[0] & 4 ) != 0 && CUR.tt_metrics.stretched )
|
|
|
7081 |
K |= 1 << 8;
|
|
|
7082 |
|
|
|
7083 |
/* Are we hinting for grayscale? */
|
|
|
7084 |
if ( ( args[0] & 32 ) != 0 && CUR.grayscale )
|
|
|
7085 |
K |= 1 << 12;
|
|
|
7086 |
|
|
|
7087 |
args[0] = K;
|
|
|
7088 |
}
|
|
|
7089 |
|
|
|
7090 |
|
|
|
7091 |
static void
|
|
|
7092 |
Ins_UNKNOWN( INS_ARG )
|
|
|
7093 |
{
|
|
|
7094 |
TT_DefRecord* def = CUR.IDefs;
|
|
|
7095 |
TT_DefRecord* limit = def + CUR.numIDefs;
|
|
|
7096 |
|
|
|
7097 |
FT_UNUSED_ARG;
|
|
|
7098 |
|
|
|
7099 |
|
|
|
7100 |
for ( ; def < limit; def++ )
|
|
|
7101 |
{
|
|
|
7102 |
if ( (FT_Byte)def->opc == CUR.opcode && def->active )
|
|
|
7103 |
{
|
|
|
7104 |
TT_CallRec* call;
|
|
|
7105 |
|
|
|
7106 |
|
|
|
7107 |
if ( CUR.callTop >= CUR.callSize )
|
|
|
7108 |
{
|
|
|
7109 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
7110 |
return;
|
|
|
7111 |
}
|
|
|
7112 |
|
|
|
7113 |
call = CUR.callStack + CUR.callTop++;
|
|
|
7114 |
|
|
|
7115 |
call->Caller_Range = CUR.curRange;
|
|
|
7116 |
call->Caller_IP = CUR.IP + 1;
|
|
|
7117 |
call->Cur_Count = 1;
|
|
|
7118 |
call->Cur_Restart = def->start;
|
|
|
7119 |
|
|
|
7120 |
INS_Goto_CodeRange( def->range, def->start );
|
|
|
7121 |
|
|
|
7122 |
CUR.step_ins = FALSE;
|
|
|
7123 |
return;
|
|
|
7124 |
}
|
|
|
7125 |
}
|
|
|
7126 |
|
|
|
7127 |
CUR.error = TT_Err_Invalid_Opcode;
|
|
|
7128 |
}
|
|
|
7129 |
|
|
|
7130 |
|
|
|
7131 |
#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
|
|
7132 |
|
|
|
7133 |
|
|
|
7134 |
static
|
|
|
7135 |
TInstruction_Function Instruct_Dispatch[256] =
|
|
|
7136 |
{
|
|
|
7137 |
/* Opcodes are gathered in groups of 16. */
|
|
|
7138 |
/* Please keep the spaces as they are. */
|
|
|
7139 |
|
|
|
7140 |
/* SVTCA y */ Ins_SVTCA,
|
|
|
7141 |
/* SVTCA x */ Ins_SVTCA,
|
|
|
7142 |
/* SPvTCA y */ Ins_SPVTCA,
|
|
|
7143 |
/* SPvTCA x */ Ins_SPVTCA,
|
|
|
7144 |
/* SFvTCA y */ Ins_SFVTCA,
|
|
|
7145 |
/* SFvTCA x */ Ins_SFVTCA,
|
|
|
7146 |
/* SPvTL // */ Ins_SPVTL,
|
|
|
7147 |
/* SPvTL + */ Ins_SPVTL,
|
|
|
7148 |
/* SFvTL // */ Ins_SFVTL,
|
|
|
7149 |
/* SFvTL + */ Ins_SFVTL,
|
|
|
7150 |
/* SPvFS */ Ins_SPVFS,
|
|
|
7151 |
/* SFvFS */ Ins_SFVFS,
|
|
|
7152 |
/* GPV */ Ins_GPV,
|
|
|
7153 |
/* GFV */ Ins_GFV,
|
|
|
7154 |
/* SFvTPv */ Ins_SFVTPV,
|
|
|
7155 |
/* ISECT */ Ins_ISECT,
|
|
|
7156 |
|
|
|
7157 |
/* SRP0 */ Ins_SRP0,
|
|
|
7158 |
/* SRP1 */ Ins_SRP1,
|
|
|
7159 |
/* SRP2 */ Ins_SRP2,
|
|
|
7160 |
/* SZP0 */ Ins_SZP0,
|
|
|
7161 |
/* SZP1 */ Ins_SZP1,
|
|
|
7162 |
/* SZP2 */ Ins_SZP2,
|
|
|
7163 |
/* SZPS */ Ins_SZPS,
|
|
|
7164 |
/* SLOOP */ Ins_SLOOP,
|
|
|
7165 |
/* RTG */ Ins_RTG,
|
|
|
7166 |
/* RTHG */ Ins_RTHG,
|
|
|
7167 |
/* SMD */ Ins_SMD,
|
|
|
7168 |
/* ELSE */ Ins_ELSE,
|
|
|
7169 |
/* JMPR */ Ins_JMPR,
|
|
|
7170 |
/* SCvTCi */ Ins_SCVTCI,
|
|
|
7171 |
/* SSwCi */ Ins_SSWCI,
|
|
|
7172 |
/* SSW */ Ins_SSW,
|
|
|
7173 |
|
|
|
7174 |
/* DUP */ Ins_DUP,
|
|
|
7175 |
/* POP */ Ins_POP,
|
|
|
7176 |
/* CLEAR */ Ins_CLEAR,
|
|
|
7177 |
/* SWAP */ Ins_SWAP,
|
|
|
7178 |
/* DEPTH */ Ins_DEPTH,
|
|
|
7179 |
/* CINDEX */ Ins_CINDEX,
|
|
|
7180 |
/* MINDEX */ Ins_MINDEX,
|
|
|
7181 |
/* AlignPTS */ Ins_ALIGNPTS,
|
|
|
7182 |
/* INS_0x28 */ Ins_UNKNOWN,
|
|
|
7183 |
/* UTP */ Ins_UTP,
|
|
|
7184 |
/* LOOPCALL */ Ins_LOOPCALL,
|
|
|
7185 |
/* CALL */ Ins_CALL,
|
|
|
7186 |
/* FDEF */ Ins_FDEF,
|
|
|
7187 |
/* ENDF */ Ins_ENDF,
|
|
|
7188 |
/* MDAP[0] */ Ins_MDAP,
|
|
|
7189 |
/* MDAP[1] */ Ins_MDAP,
|
|
|
7190 |
|
|
|
7191 |
/* IUP[0] */ Ins_IUP,
|
|
|
7192 |
/* IUP[1] */ Ins_IUP,
|
|
|
7193 |
/* SHP[0] */ Ins_SHP,
|
|
|
7194 |
/* SHP[1] */ Ins_SHP,
|
|
|
7195 |
/* SHC[0] */ Ins_SHC,
|
|
|
7196 |
/* SHC[1] */ Ins_SHC,
|
|
|
7197 |
/* SHZ[0] */ Ins_SHZ,
|
|
|
7198 |
/* SHZ[1] */ Ins_SHZ,
|
|
|
7199 |
/* SHPIX */ Ins_SHPIX,
|
|
|
7200 |
/* IP */ Ins_IP,
|
|
|
7201 |
/* MSIRP[0] */ Ins_MSIRP,
|
|
|
7202 |
/* MSIRP[1] */ Ins_MSIRP,
|
|
|
7203 |
/* AlignRP */ Ins_ALIGNRP,
|
|
|
7204 |
/* RTDG */ Ins_RTDG,
|
|
|
7205 |
/* MIAP[0] */ Ins_MIAP,
|
|
|
7206 |
/* MIAP[1] */ Ins_MIAP,
|
|
|
7207 |
|
|
|
7208 |
/* NPushB */ Ins_NPUSHB,
|
|
|
7209 |
/* NPushW */ Ins_NPUSHW,
|
|
|
7210 |
/* WS */ Ins_WS,
|
|
|
7211 |
/* RS */ Ins_RS,
|
|
|
7212 |
/* WCvtP */ Ins_WCVTP,
|
|
|
7213 |
/* RCvt */ Ins_RCVT,
|
|
|
7214 |
/* GC[0] */ Ins_GC,
|
|
|
7215 |
/* GC[1] */ Ins_GC,
|
|
|
7216 |
/* SCFS */ Ins_SCFS,
|
|
|
7217 |
/* MD[0] */ Ins_MD,
|
|
|
7218 |
/* MD[1] */ Ins_MD,
|
|
|
7219 |
/* MPPEM */ Ins_MPPEM,
|
|
|
7220 |
/* MPS */ Ins_MPS,
|
|
|
7221 |
/* FlipON */ Ins_FLIPON,
|
|
|
7222 |
/* FlipOFF */ Ins_FLIPOFF,
|
|
|
7223 |
/* DEBUG */ Ins_DEBUG,
|
|
|
7224 |
|
|
|
7225 |
/* LT */ Ins_LT,
|
|
|
7226 |
/* LTEQ */ Ins_LTEQ,
|
|
|
7227 |
/* GT */ Ins_GT,
|
|
|
7228 |
/* GTEQ */ Ins_GTEQ,
|
|
|
7229 |
/* EQ */ Ins_EQ,
|
|
|
7230 |
/* NEQ */ Ins_NEQ,
|
|
|
7231 |
/* ODD */ Ins_ODD,
|
|
|
7232 |
/* EVEN */ Ins_EVEN,
|
|
|
7233 |
/* IF */ Ins_IF,
|
|
|
7234 |
/* EIF */ Ins_EIF,
|
|
|
7235 |
/* AND */ Ins_AND,
|
|
|
7236 |
/* OR */ Ins_OR,
|
|
|
7237 |
/* NOT */ Ins_NOT,
|
|
|
7238 |
/* DeltaP1 */ Ins_DELTAP,
|
|
|
7239 |
/* SDB */ Ins_SDB,
|
|
|
7240 |
/* SDS */ Ins_SDS,
|
|
|
7241 |
|
|
|
7242 |
/* ADD */ Ins_ADD,
|
|
|
7243 |
/* SUB */ Ins_SUB,
|
|
|
7244 |
/* DIV */ Ins_DIV,
|
|
|
7245 |
/* MUL */ Ins_MUL,
|
|
|
7246 |
/* ABS */ Ins_ABS,
|
|
|
7247 |
/* NEG */ Ins_NEG,
|
|
|
7248 |
/* FLOOR */ Ins_FLOOR,
|
|
|
7249 |
/* CEILING */ Ins_CEILING,
|
|
|
7250 |
/* ROUND[0] */ Ins_ROUND,
|
|
|
7251 |
/* ROUND[1] */ Ins_ROUND,
|
|
|
7252 |
/* ROUND[2] */ Ins_ROUND,
|
|
|
7253 |
/* ROUND[3] */ Ins_ROUND,
|
|
|
7254 |
/* NROUND[0] */ Ins_NROUND,
|
|
|
7255 |
/* NROUND[1] */ Ins_NROUND,
|
|
|
7256 |
/* NROUND[2] */ Ins_NROUND,
|
|
|
7257 |
/* NROUND[3] */ Ins_NROUND,
|
|
|
7258 |
|
|
|
7259 |
/* WCvtF */ Ins_WCVTF,
|
|
|
7260 |
/* DeltaP2 */ Ins_DELTAP,
|
|
|
7261 |
/* DeltaP3 */ Ins_DELTAP,
|
|
|
7262 |
/* DeltaCn[0] */ Ins_DELTAC,
|
|
|
7263 |
/* DeltaCn[1] */ Ins_DELTAC,
|
|
|
7264 |
/* DeltaCn[2] */ Ins_DELTAC,
|
|
|
7265 |
/* SROUND */ Ins_SROUND,
|
|
|
7266 |
/* S45Round */ Ins_S45ROUND,
|
|
|
7267 |
/* JROT */ Ins_JROT,
|
|
|
7268 |
/* JROF */ Ins_JROF,
|
|
|
7269 |
/* ROFF */ Ins_ROFF,
|
|
|
7270 |
/* INS_0x7B */ Ins_UNKNOWN,
|
|
|
7271 |
/* RUTG */ Ins_RUTG,
|
|
|
7272 |
/* RDTG */ Ins_RDTG,
|
|
|
7273 |
/* SANGW */ Ins_SANGW,
|
|
|
7274 |
/* AA */ Ins_AA,
|
|
|
7275 |
|
|
|
7276 |
/* FlipPT */ Ins_FLIPPT,
|
|
|
7277 |
/* FlipRgON */ Ins_FLIPRGON,
|
|
|
7278 |
/* FlipRgOFF */ Ins_FLIPRGOFF,
|
|
|
7279 |
/* INS_0x83 */ Ins_UNKNOWN,
|
|
|
7280 |
/* INS_0x84 */ Ins_UNKNOWN,
|
|
|
7281 |
/* ScanCTRL */ Ins_SCANCTRL,
|
|
|
7282 |
/* SDPVTL[0] */ Ins_SDPVTL,
|
|
|
7283 |
/* SDPVTL[1] */ Ins_SDPVTL,
|
|
|
7284 |
/* GetINFO */ Ins_GETINFO,
|
|
|
7285 |
/* IDEF */ Ins_IDEF,
|
|
|
7286 |
/* ROLL */ Ins_ROLL,
|
|
|
7287 |
/* MAX */ Ins_MAX,
|
|
|
7288 |
/* MIN */ Ins_MIN,
|
|
|
7289 |
/* ScanTYPE */ Ins_SCANTYPE,
|
|
|
7290 |
/* InstCTRL */ Ins_INSTCTRL,
|
|
|
7291 |
/* INS_0x8F */ Ins_UNKNOWN,
|
|
|
7292 |
|
|
|
7293 |
/* INS_0x90 */ Ins_UNKNOWN,
|
|
|
7294 |
/* INS_0x91 */ Ins_UNKNOWN,
|
|
|
7295 |
/* INS_0x92 */ Ins_UNKNOWN,
|
|
|
7296 |
/* INS_0x93 */ Ins_UNKNOWN,
|
|
|
7297 |
/* INS_0x94 */ Ins_UNKNOWN,
|
|
|
7298 |
/* INS_0x95 */ Ins_UNKNOWN,
|
|
|
7299 |
/* INS_0x96 */ Ins_UNKNOWN,
|
|
|
7300 |
/* INS_0x97 */ Ins_UNKNOWN,
|
|
|
7301 |
/* INS_0x98 */ Ins_UNKNOWN,
|
|
|
7302 |
/* INS_0x99 */ Ins_UNKNOWN,
|
|
|
7303 |
/* INS_0x9A */ Ins_UNKNOWN,
|
|
|
7304 |
/* INS_0x9B */ Ins_UNKNOWN,
|
|
|
7305 |
/* INS_0x9C */ Ins_UNKNOWN,
|
|
|
7306 |
/* INS_0x9D */ Ins_UNKNOWN,
|
|
|
7307 |
/* INS_0x9E */ Ins_UNKNOWN,
|
|
|
7308 |
/* INS_0x9F */ Ins_UNKNOWN,
|
|
|
7309 |
|
|
|
7310 |
/* INS_0xA0 */ Ins_UNKNOWN,
|
|
|
7311 |
/* INS_0xA1 */ Ins_UNKNOWN,
|
|
|
7312 |
/* INS_0xA2 */ Ins_UNKNOWN,
|
|
|
7313 |
/* INS_0xA3 */ Ins_UNKNOWN,
|
|
|
7314 |
/* INS_0xA4 */ Ins_UNKNOWN,
|
|
|
7315 |
/* INS_0xA5 */ Ins_UNKNOWN,
|
|
|
7316 |
/* INS_0xA6 */ Ins_UNKNOWN,
|
|
|
7317 |
/* INS_0xA7 */ Ins_UNKNOWN,
|
|
|
7318 |
/* INS_0xA8 */ Ins_UNKNOWN,
|
|
|
7319 |
/* INS_0xA9 */ Ins_UNKNOWN,
|
|
|
7320 |
/* INS_0xAA */ Ins_UNKNOWN,
|
|
|
7321 |
/* INS_0xAB */ Ins_UNKNOWN,
|
|
|
7322 |
/* INS_0xAC */ Ins_UNKNOWN,
|
|
|
7323 |
/* INS_0xAD */ Ins_UNKNOWN,
|
|
|
7324 |
/* INS_0xAE */ Ins_UNKNOWN,
|
|
|
7325 |
/* INS_0xAF */ Ins_UNKNOWN,
|
|
|
7326 |
|
|
|
7327 |
/* PushB[0] */ Ins_PUSHB,
|
|
|
7328 |
/* PushB[1] */ Ins_PUSHB,
|
|
|
7329 |
/* PushB[2] */ Ins_PUSHB,
|
|
|
7330 |
/* PushB[3] */ Ins_PUSHB,
|
|
|
7331 |
/* PushB[4] */ Ins_PUSHB,
|
|
|
7332 |
/* PushB[5] */ Ins_PUSHB,
|
|
|
7333 |
/* PushB[6] */ Ins_PUSHB,
|
|
|
7334 |
/* PushB[7] */ Ins_PUSHB,
|
|
|
7335 |
/* PushW[0] */ Ins_PUSHW,
|
|
|
7336 |
/* PushW[1] */ Ins_PUSHW,
|
|
|
7337 |
/* PushW[2] */ Ins_PUSHW,
|
|
|
7338 |
/* PushW[3] */ Ins_PUSHW,
|
|
|
7339 |
/* PushW[4] */ Ins_PUSHW,
|
|
|
7340 |
/* PushW[5] */ Ins_PUSHW,
|
|
|
7341 |
/* PushW[6] */ Ins_PUSHW,
|
|
|
7342 |
/* PushW[7] */ Ins_PUSHW,
|
|
|
7343 |
|
|
|
7344 |
/* MDRP[00] */ Ins_MDRP,
|
|
|
7345 |
/* MDRP[01] */ Ins_MDRP,
|
|
|
7346 |
/* MDRP[02] */ Ins_MDRP,
|
|
|
7347 |
/* MDRP[03] */ Ins_MDRP,
|
|
|
7348 |
/* MDRP[04] */ Ins_MDRP,
|
|
|
7349 |
/* MDRP[05] */ Ins_MDRP,
|
|
|
7350 |
/* MDRP[06] */ Ins_MDRP,
|
|
|
7351 |
/* MDRP[07] */ Ins_MDRP,
|
|
|
7352 |
/* MDRP[08] */ Ins_MDRP,
|
|
|
7353 |
/* MDRP[09] */ Ins_MDRP,
|
|
|
7354 |
/* MDRP[10] */ Ins_MDRP,
|
|
|
7355 |
/* MDRP[11] */ Ins_MDRP,
|
|
|
7356 |
/* MDRP[12] */ Ins_MDRP,
|
|
|
7357 |
/* MDRP[13] */ Ins_MDRP,
|
|
|
7358 |
/* MDRP[14] */ Ins_MDRP,
|
|
|
7359 |
/* MDRP[15] */ Ins_MDRP,
|
|
|
7360 |
|
|
|
7361 |
/* MDRP[16] */ Ins_MDRP,
|
|
|
7362 |
/* MDRP[17] */ Ins_MDRP,
|
|
|
7363 |
/* MDRP[18] */ Ins_MDRP,
|
|
|
7364 |
/* MDRP[19] */ Ins_MDRP,
|
|
|
7365 |
/* MDRP[20] */ Ins_MDRP,
|
|
|
7366 |
/* MDRP[21] */ Ins_MDRP,
|
|
|
7367 |
/* MDRP[22] */ Ins_MDRP,
|
|
|
7368 |
/* MDRP[23] */ Ins_MDRP,
|
|
|
7369 |
/* MDRP[24] */ Ins_MDRP,
|
|
|
7370 |
/* MDRP[25] */ Ins_MDRP,
|
|
|
7371 |
/* MDRP[26] */ Ins_MDRP,
|
|
|
7372 |
/* MDRP[27] */ Ins_MDRP,
|
|
|
7373 |
/* MDRP[28] */ Ins_MDRP,
|
|
|
7374 |
/* MDRP[29] */ Ins_MDRP,
|
|
|
7375 |
/* MDRP[30] */ Ins_MDRP,
|
|
|
7376 |
/* MDRP[31] */ Ins_MDRP,
|
|
|
7377 |
|
|
|
7378 |
/* MIRP[00] */ Ins_MIRP,
|
|
|
7379 |
/* MIRP[01] */ Ins_MIRP,
|
|
|
7380 |
/* MIRP[02] */ Ins_MIRP,
|
|
|
7381 |
/* MIRP[03] */ Ins_MIRP,
|
|
|
7382 |
/* MIRP[04] */ Ins_MIRP,
|
|
|
7383 |
/* MIRP[05] */ Ins_MIRP,
|
|
|
7384 |
/* MIRP[06] */ Ins_MIRP,
|
|
|
7385 |
/* MIRP[07] */ Ins_MIRP,
|
|
|
7386 |
/* MIRP[08] */ Ins_MIRP,
|
|
|
7387 |
/* MIRP[09] */ Ins_MIRP,
|
|
|
7388 |
/* MIRP[10] */ Ins_MIRP,
|
|
|
7389 |
/* MIRP[11] */ Ins_MIRP,
|
|
|
7390 |
/* MIRP[12] */ Ins_MIRP,
|
|
|
7391 |
/* MIRP[13] */ Ins_MIRP,
|
|
|
7392 |
/* MIRP[14] */ Ins_MIRP,
|
|
|
7393 |
/* MIRP[15] */ Ins_MIRP,
|
|
|
7394 |
|
|
|
7395 |
/* MIRP[16] */ Ins_MIRP,
|
|
|
7396 |
/* MIRP[17] */ Ins_MIRP,
|
|
|
7397 |
/* MIRP[18] */ Ins_MIRP,
|
|
|
7398 |
/* MIRP[19] */ Ins_MIRP,
|
|
|
7399 |
/* MIRP[20] */ Ins_MIRP,
|
|
|
7400 |
/* MIRP[21] */ Ins_MIRP,
|
|
|
7401 |
/* MIRP[22] */ Ins_MIRP,
|
|
|
7402 |
/* MIRP[23] */ Ins_MIRP,
|
|
|
7403 |
/* MIRP[24] */ Ins_MIRP,
|
|
|
7404 |
/* MIRP[25] */ Ins_MIRP,
|
|
|
7405 |
/* MIRP[26] */ Ins_MIRP,
|
|
|
7406 |
/* MIRP[27] */ Ins_MIRP,
|
|
|
7407 |
/* MIRP[28] */ Ins_MIRP,
|
|
|
7408 |
/* MIRP[29] */ Ins_MIRP,
|
|
|
7409 |
/* MIRP[30] */ Ins_MIRP,
|
|
|
7410 |
/* MIRP[31] */ Ins_MIRP
|
|
|
7411 |
};
|
|
|
7412 |
|
|
|
7413 |
|
|
|
7414 |
#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */
|
|
|
7415 |
|
|
|
7416 |
|
|
|
7417 |
/*************************************************************************/
|
|
|
7418 |
/* */
|
|
|
7419 |
/* RUN */
|
|
|
7420 |
/* */
|
|
|
7421 |
/* This function executes a run of opcodes. It will exit in the */
|
|
|
7422 |
/* following cases: */
|
|
|
7423 |
/* */
|
|
|
7424 |
/* - Errors (in which case it returns FALSE). */
|
|
|
7425 |
/* */
|
|
|
7426 |
/* - Reaching the end of the main code range (returns TRUE). */
|
|
|
7427 |
/* Reaching the end of a code range within a function call is an */
|
|
|
7428 |
/* error. */
|
|
|
7429 |
/* */
|
|
|
7430 |
/* - After executing one single opcode, if the flag `Instruction_Trap' */
|
|
|
7431 |
/* is set to TRUE (returns TRUE). */
|
|
|
7432 |
/* */
|
|
|
7433 |
/* On exit with TRUE, test IP < CodeSize to know whether it comes from */
|
|
|
7434 |
/* an instruction trap or a normal termination. */
|
|
|
7435 |
/* */
|
|
|
7436 |
/* */
|
|
|
7437 |
/* Note: The documented DEBUG opcode pops a value from the stack. This */
|
|
|
7438 |
/* behaviour is unsupported; here a DEBUG opcode is always an */
|
|
|
7439 |
/* error. */
|
|
|
7440 |
/* */
|
|
|
7441 |
/* */
|
|
|
7442 |
/* THIS IS THE INTERPRETER'S MAIN LOOP. */
|
|
|
7443 |
/* */
|
|
|
7444 |
/* Instructions appear in the specification's order. */
|
|
|
7445 |
/* */
|
|
|
7446 |
/*************************************************************************/
|
|
|
7447 |
|
|
|
7448 |
|
|
|
7449 |
/* documentation is in ttinterp.h */
|
|
|
7450 |
|
|
|
7451 |
FT_EXPORT_DEF( FT_Error )
|
|
|
7452 |
TT_RunIns( TT_ExecContext exc )
|
|
|
7453 |
{
|
|
|
7454 |
FT_Long ins_counter = 0; /* executed instructions counter */
|
|
|
7455 |
|
|
|
7456 |
|
|
|
7457 |
#ifdef TT_CONFIG_OPTION_STATIC_RASTER
|
|
|
7458 |
cur = *exc;
|
|
|
7459 |
#endif
|
|
|
7460 |
|
|
|
7461 |
/* set CVT functions */
|
|
|
7462 |
CUR.tt_metrics.ratio = 0;
|
|
|
7463 |
if ( CUR.metrics.x_ppem != CUR.metrics.y_ppem )
|
|
|
7464 |
{
|
|
|
7465 |
/* non-square pixels, use the stretched routines */
|
|
|
7466 |
CUR.func_read_cvt = Read_CVT_Stretched;
|
|
|
7467 |
CUR.func_write_cvt = Write_CVT_Stretched;
|
|
|
7468 |
CUR.func_move_cvt = Move_CVT_Stretched;
|
|
|
7469 |
}
|
|
|
7470 |
else
|
|
|
7471 |
{
|
|
|
7472 |
/* square pixels, use normal routines */
|
|
|
7473 |
CUR.func_read_cvt = Read_CVT;
|
|
|
7474 |
CUR.func_write_cvt = Write_CVT;
|
|
|
7475 |
CUR.func_move_cvt = Move_CVT;
|
|
|
7476 |
}
|
|
|
7477 |
|
|
|
7478 |
COMPUTE_Funcs();
|
|
|
7479 |
COMPUTE_Round( (FT_Byte)exc->GS.round_state );
|
|
|
7480 |
|
|
|
7481 |
do
|
|
|
7482 |
{
|
|
|
7483 |
CUR.opcode = CUR.code[CUR.IP];
|
|
|
7484 |
|
|
|
7485 |
FT_TRACE7(( " " ));
|
|
|
7486 |
FT_TRACE7(( opcode_name[CUR.opcode] ));
|
|
|
7487 |
FT_TRACE7(( "\n" ));
|
|
|
7488 |
|
|
|
7489 |
if ( ( CUR.length = opcode_length[CUR.opcode] ) < 0 )
|
|
|
7490 |
{
|
|
|
7491 |
if ( CUR.IP + 1 > CUR.codeSize )
|
|
|
7492 |
goto LErrorCodeOverflow_;
|
|
|
7493 |
|
|
|
7494 |
CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1];
|
|
|
7495 |
}
|
|
|
7496 |
|
|
|
7497 |
if ( CUR.IP + CUR.length > CUR.codeSize )
|
|
|
7498 |
goto LErrorCodeOverflow_;
|
|
|
7499 |
|
|
|
7500 |
/* First, let's check for empty stack and overflow */
|
|
|
7501 |
CUR.args = CUR.top - ( Pop_Push_Count[CUR.opcode] >> 4 );
|
|
|
7502 |
|
|
|
7503 |
/* `args' is the top of the stack once arguments have been popped. */
|
|
|
7504 |
/* One can also interpret it as the index of the last argument. */
|
|
|
7505 |
if ( CUR.args < 0 )
|
|
|
7506 |
{
|
|
|
7507 |
FT_UShort i;
|
|
|
7508 |
|
|
|
7509 |
|
|
|
7510 |
if ( CUR.pedantic_hinting )
|
|
|
7511 |
{
|
|
|
7512 |
CUR.error = TT_Err_Too_Few_Arguments;
|
|
|
7513 |
goto LErrorLabel_;
|
|
|
7514 |
}
|
|
|
7515 |
|
|
|
7516 |
/* push zeroes onto the stack */
|
|
|
7517 |
for ( i = 0; i < Pop_Push_Count[CUR.opcode] >> 4; i++ )
|
|
|
7518 |
CUR.stack[i] = 0;
|
|
|
7519 |
CUR.args = 0;
|
|
|
7520 |
}
|
|
|
7521 |
|
|
|
7522 |
CUR.new_top = CUR.args + ( Pop_Push_Count[CUR.opcode] & 15 );
|
|
|
7523 |
|
|
|
7524 |
/* `new_top' is the new top of the stack, after the instruction's */
|
|
|
7525 |
/* execution. `top' will be set to `new_top' after the `switch' */
|
|
|
7526 |
/* statement. */
|
|
|
7527 |
if ( CUR.new_top > CUR.stackSize )
|
|
|
7528 |
{
|
|
|
7529 |
CUR.error = TT_Err_Stack_Overflow;
|
|
|
7530 |
goto LErrorLabel_;
|
|
|
7531 |
}
|
|
|
7532 |
|
|
|
7533 |
CUR.step_ins = TRUE;
|
|
|
7534 |
CUR.error = TT_Err_Ok;
|
|
|
7535 |
|
|
|
7536 |
#ifdef TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
|
|
7537 |
|
|
|
7538 |
{
|
|
|
7539 |
FT_Long* args = CUR.stack + CUR.args;
|
|
|
7540 |
FT_Byte opcode = CUR.opcode;
|
|
|
7541 |
|
|
|
7542 |
|
|
|
7543 |
#undef ARRAY_BOUND_ERROR
|
|
|
7544 |
#define ARRAY_BOUND_ERROR goto Set_Invalid_Ref
|
|
|
7545 |
|
|
|
7546 |
|
|
|
7547 |
switch ( opcode )
|
|
|
7548 |
{
|
|
|
7549 |
case 0x00: /* SVTCA y */
|
|
|
7550 |
case 0x01: /* SVTCA x */
|
|
|
7551 |
case 0x02: /* SPvTCA y */
|
|
|
7552 |
case 0x03: /* SPvTCA x */
|
|
|
7553 |
case 0x04: /* SFvTCA y */
|
|
|
7554 |
case 0x05: /* SFvTCA x */
|
|
|
7555 |
{
|
|
|
7556 |
FT_Short AA, BB;
|
|
|
7557 |
|
|
|
7558 |
|
|
|
7559 |
AA = (FT_Short)( ( opcode & 1 ) << 14 );
|
|
|
7560 |
BB = (FT_Short)( AA ^ 0x4000 );
|
|
|
7561 |
|
|
|
7562 |
if ( opcode < 4 )
|
|
|
7563 |
{
|
|
|
7564 |
CUR.GS.projVector.x = AA;
|
|
|
7565 |
CUR.GS.projVector.y = BB;
|
|
|
7566 |
|
|
|
7567 |
CUR.GS.dualVector.x = AA;
|
|
|
7568 |
CUR.GS.dualVector.y = BB;
|
|
|
7569 |
}
|
|
|
7570 |
else
|
|
|
7571 |
{
|
|
|
7572 |
GUESS_VECTOR( projVector );
|
|
|
7573 |
}
|
|
|
7574 |
|
|
|
7575 |
if ( ( opcode & 2 ) == 0 )
|
|
|
7576 |
{
|
|
|
7577 |
CUR.GS.freeVector.x = AA;
|
|
|
7578 |
CUR.GS.freeVector.y = BB;
|
|
|
7579 |
}
|
|
|
7580 |
else
|
|
|
7581 |
{
|
|
|
7582 |
GUESS_VECTOR( freeVector );
|
|
|
7583 |
}
|
|
|
7584 |
|
|
|
7585 |
COMPUTE_Funcs();
|
|
|
7586 |
}
|
|
|
7587 |
break;
|
|
|
7588 |
|
|
|
7589 |
case 0x06: /* SPvTL // */
|
|
|
7590 |
case 0x07: /* SPvTL + */
|
|
|
7591 |
DO_SPVTL
|
|
|
7592 |
break;
|
|
|
7593 |
|
|
|
7594 |
case 0x08: /* SFvTL // */
|
|
|
7595 |
case 0x09: /* SFvTL + */
|
|
|
7596 |
DO_SFVTL
|
|
|
7597 |
break;
|
|
|
7598 |
|
|
|
7599 |
case 0x0A: /* SPvFS */
|
|
|
7600 |
DO_SPVFS
|
|
|
7601 |
break;
|
|
|
7602 |
|
|
|
7603 |
case 0x0B: /* SFvFS */
|
|
|
7604 |
DO_SFVFS
|
|
|
7605 |
break;
|
|
|
7606 |
|
|
|
7607 |
case 0x0C: /* GPV */
|
|
|
7608 |
DO_GPV
|
|
|
7609 |
break;
|
|
|
7610 |
|
|
|
7611 |
case 0x0D: /* GFV */
|
|
|
7612 |
DO_GFV
|
|
|
7613 |
break;
|
|
|
7614 |
|
|
|
7615 |
case 0x0E: /* SFvTPv */
|
|
|
7616 |
DO_SFVTPV
|
|
|
7617 |
break;
|
|
|
7618 |
|
|
|
7619 |
case 0x0F: /* ISECT */
|
|
|
7620 |
Ins_ISECT( EXEC_ARG_ args );
|
|
|
7621 |
break;
|
|
|
7622 |
|
|
|
7623 |
case 0x10: /* SRP0 */
|
|
|
7624 |
DO_SRP0
|
|
|
7625 |
break;
|
|
|
7626 |
|
|
|
7627 |
case 0x11: /* SRP1 */
|
|
|
7628 |
DO_SRP1
|
|
|
7629 |
break;
|
|
|
7630 |
|
|
|
7631 |
case 0x12: /* SRP2 */
|
|
|
7632 |
DO_SRP2
|
|
|
7633 |
break;
|
|
|
7634 |
|
|
|
7635 |
case 0x13: /* SZP0 */
|
|
|
7636 |
Ins_SZP0( EXEC_ARG_ args );
|
|
|
7637 |
break;
|
|
|
7638 |
|
|
|
7639 |
case 0x14: /* SZP1 */
|
|
|
7640 |
Ins_SZP1( EXEC_ARG_ args );
|
|
|
7641 |
break;
|
|
|
7642 |
|
|
|
7643 |
case 0x15: /* SZP2 */
|
|
|
7644 |
Ins_SZP2( EXEC_ARG_ args );
|
|
|
7645 |
break;
|
|
|
7646 |
|
|
|
7647 |
case 0x16: /* SZPS */
|
|
|
7648 |
Ins_SZPS( EXEC_ARG_ args );
|
|
|
7649 |
break;
|
|
|
7650 |
|
|
|
7651 |
case 0x17: /* SLOOP */
|
|
|
7652 |
DO_SLOOP
|
|
|
7653 |
break;
|
|
|
7654 |
|
|
|
7655 |
case 0x18: /* RTG */
|
|
|
7656 |
DO_RTG
|
|
|
7657 |
break;
|
|
|
7658 |
|
|
|
7659 |
case 0x19: /* RTHG */
|
|
|
7660 |
DO_RTHG
|
|
|
7661 |
break;
|
|
|
7662 |
|
|
|
7663 |
case 0x1A: /* SMD */
|
|
|
7664 |
DO_SMD
|
|
|
7665 |
break;
|
|
|
7666 |
|
|
|
7667 |
case 0x1B: /* ELSE */
|
|
|
7668 |
Ins_ELSE( EXEC_ARG_ args );
|
|
|
7669 |
break;
|
|
|
7670 |
|
|
|
7671 |
case 0x1C: /* JMPR */
|
|
|
7672 |
DO_JMPR
|
|
|
7673 |
break;
|
|
|
7674 |
|
|
|
7675 |
case 0x1D: /* SCVTCI */
|
|
|
7676 |
DO_SCVTCI
|
|
|
7677 |
break;
|
|
|
7678 |
|
|
|
7679 |
case 0x1E: /* SSWCI */
|
|
|
7680 |
DO_SSWCI
|
|
|
7681 |
break;
|
|
|
7682 |
|
|
|
7683 |
case 0x1F: /* SSW */
|
|
|
7684 |
DO_SSW
|
|
|
7685 |
break;
|
|
|
7686 |
|
|
|
7687 |
case 0x20: /* DUP */
|
|
|
7688 |
DO_DUP
|
|
|
7689 |
break;
|
|
|
7690 |
|
|
|
7691 |
case 0x21: /* POP */
|
|
|
7692 |
/* nothing :-) */
|
|
|
7693 |
break;
|
|
|
7694 |
|
|
|
7695 |
case 0x22: /* CLEAR */
|
|
|
7696 |
DO_CLEAR
|
|
|
7697 |
break;
|
|
|
7698 |
|
|
|
7699 |
case 0x23: /* SWAP */
|
|
|
7700 |
DO_SWAP
|
|
|
7701 |
break;
|
|
|
7702 |
|
|
|
7703 |
case 0x24: /* DEPTH */
|
|
|
7704 |
DO_DEPTH
|
|
|
7705 |
break;
|
|
|
7706 |
|
|
|
7707 |
case 0x25: /* CINDEX */
|
|
|
7708 |
DO_CINDEX
|
|
|
7709 |
break;
|
|
|
7710 |
|
|
|
7711 |
case 0x26: /* MINDEX */
|
|
|
7712 |
Ins_MINDEX( EXEC_ARG_ args );
|
|
|
7713 |
break;
|
|
|
7714 |
|
|
|
7715 |
case 0x27: /* ALIGNPTS */
|
|
|
7716 |
Ins_ALIGNPTS( EXEC_ARG_ args );
|
|
|
7717 |
break;
|
|
|
7718 |
|
|
|
7719 |
case 0x28: /* ???? */
|
|
|
7720 |
Ins_UNKNOWN( EXEC_ARG_ args );
|
|
|
7721 |
break;
|
|
|
7722 |
|
|
|
7723 |
case 0x29: /* UTP */
|
|
|
7724 |
Ins_UTP( EXEC_ARG_ args );
|
|
|
7725 |
break;
|
|
|
7726 |
|
|
|
7727 |
case 0x2A: /* LOOPCALL */
|
|
|
7728 |
Ins_LOOPCALL( EXEC_ARG_ args );
|
|
|
7729 |
break;
|
|
|
7730 |
|
|
|
7731 |
case 0x2B: /* CALL */
|
|
|
7732 |
Ins_CALL( EXEC_ARG_ args );
|
|
|
7733 |
break;
|
|
|
7734 |
|
|
|
7735 |
case 0x2C: /* FDEF */
|
|
|
7736 |
Ins_FDEF( EXEC_ARG_ args );
|
|
|
7737 |
break;
|
|
|
7738 |
|
|
|
7739 |
case 0x2D: /* ENDF */
|
|
|
7740 |
Ins_ENDF( EXEC_ARG_ args );
|
|
|
7741 |
break;
|
|
|
7742 |
|
|
|
7743 |
case 0x2E: /* MDAP */
|
|
|
7744 |
case 0x2F: /* MDAP */
|
|
|
7745 |
Ins_MDAP( EXEC_ARG_ args );
|
|
|
7746 |
break;
|
|
|
7747 |
|
|
|
7748 |
|
|
|
7749 |
case 0x30: /* IUP */
|
|
|
7750 |
case 0x31: /* IUP */
|
|
|
7751 |
Ins_IUP( EXEC_ARG_ args );
|
|
|
7752 |
break;
|
|
|
7753 |
|
|
|
7754 |
case 0x32: /* SHP */
|
|
|
7755 |
case 0x33: /* SHP */
|
|
|
7756 |
Ins_SHP( EXEC_ARG_ args );
|
|
|
7757 |
break;
|
|
|
7758 |
|
|
|
7759 |
case 0x34: /* SHC */
|
|
|
7760 |
case 0x35: /* SHC */
|
|
|
7761 |
Ins_SHC( EXEC_ARG_ args );
|
|
|
7762 |
break;
|
|
|
7763 |
|
|
|
7764 |
case 0x36: /* SHZ */
|
|
|
7765 |
case 0x37: /* SHZ */
|
|
|
7766 |
Ins_SHZ( EXEC_ARG_ args );
|
|
|
7767 |
break;
|
|
|
7768 |
|
|
|
7769 |
case 0x38: /* SHPIX */
|
|
|
7770 |
Ins_SHPIX( EXEC_ARG_ args );
|
|
|
7771 |
break;
|
|
|
7772 |
|
|
|
7773 |
case 0x39: /* IP */
|
|
|
7774 |
Ins_IP( EXEC_ARG_ args );
|
|
|
7775 |
break;
|
|
|
7776 |
|
|
|
7777 |
case 0x3A: /* MSIRP */
|
|
|
7778 |
case 0x3B: /* MSIRP */
|
|
|
7779 |
Ins_MSIRP( EXEC_ARG_ args );
|
|
|
7780 |
break;
|
|
|
7781 |
|
|
|
7782 |
case 0x3C: /* AlignRP */
|
|
|
7783 |
Ins_ALIGNRP( EXEC_ARG_ args );
|
|
|
7784 |
break;
|
|
|
7785 |
|
|
|
7786 |
case 0x3D: /* RTDG */
|
|
|
7787 |
DO_RTDG
|
|
|
7788 |
break;
|
|
|
7789 |
|
|
|
7790 |
case 0x3E: /* MIAP */
|
|
|
7791 |
case 0x3F: /* MIAP */
|
|
|
7792 |
Ins_MIAP( EXEC_ARG_ args );
|
|
|
7793 |
break;
|
|
|
7794 |
|
|
|
7795 |
case 0x40: /* NPUSHB */
|
|
|
7796 |
Ins_NPUSHB( EXEC_ARG_ args );
|
|
|
7797 |
break;
|
|
|
7798 |
|
|
|
7799 |
case 0x41: /* NPUSHW */
|
|
|
7800 |
Ins_NPUSHW( EXEC_ARG_ args );
|
|
|
7801 |
break;
|
|
|
7802 |
|
|
|
7803 |
case 0x42: /* WS */
|
|
|
7804 |
DO_WS
|
|
|
7805 |
break;
|
|
|
7806 |
|
|
|
7807 |
Set_Invalid_Ref:
|
|
|
7808 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
7809 |
break;
|
|
|
7810 |
|
|
|
7811 |
case 0x43: /* RS */
|
|
|
7812 |
DO_RS
|
|
|
7813 |
break;
|
|
|
7814 |
|
|
|
7815 |
case 0x44: /* WCVTP */
|
|
|
7816 |
DO_WCVTP
|
|
|
7817 |
break;
|
|
|
7818 |
|
|
|
7819 |
case 0x45: /* RCVT */
|
|
|
7820 |
DO_RCVT
|
|
|
7821 |
break;
|
|
|
7822 |
|
|
|
7823 |
case 0x46: /* GC */
|
|
|
7824 |
case 0x47: /* GC */
|
|
|
7825 |
Ins_GC( EXEC_ARG_ args );
|
|
|
7826 |
break;
|
|
|
7827 |
|
|
|
7828 |
case 0x48: /* SCFS */
|
|
|
7829 |
Ins_SCFS( EXEC_ARG_ args );
|
|
|
7830 |
break;
|
|
|
7831 |
|
|
|
7832 |
case 0x49: /* MD */
|
|
|
7833 |
case 0x4A: /* MD */
|
|
|
7834 |
Ins_MD( EXEC_ARG_ args );
|
|
|
7835 |
break;
|
|
|
7836 |
|
|
|
7837 |
case 0x4B: /* MPPEM */
|
|
|
7838 |
DO_MPPEM
|
|
|
7839 |
break;
|
|
|
7840 |
|
|
|
7841 |
case 0x4C: /* MPS */
|
|
|
7842 |
DO_MPS
|
|
|
7843 |
break;
|
|
|
7844 |
|
|
|
7845 |
case 0x4D: /* FLIPON */
|
|
|
7846 |
DO_FLIPON
|
|
|
7847 |
break;
|
|
|
7848 |
|
|
|
7849 |
case 0x4E: /* FLIPOFF */
|
|
|
7850 |
DO_FLIPOFF
|
|
|
7851 |
break;
|
|
|
7852 |
|
|
|
7853 |
case 0x4F: /* DEBUG */
|
|
|
7854 |
DO_DEBUG
|
|
|
7855 |
break;
|
|
|
7856 |
|
|
|
7857 |
case 0x50: /* LT */
|
|
|
7858 |
DO_LT
|
|
|
7859 |
break;
|
|
|
7860 |
|
|
|
7861 |
case 0x51: /* LTEQ */
|
|
|
7862 |
DO_LTEQ
|
|
|
7863 |
break;
|
|
|
7864 |
|
|
|
7865 |
case 0x52: /* GT */
|
|
|
7866 |
DO_GT
|
|
|
7867 |
break;
|
|
|
7868 |
|
|
|
7869 |
case 0x53: /* GTEQ */
|
|
|
7870 |
DO_GTEQ
|
|
|
7871 |
break;
|
|
|
7872 |
|
|
|
7873 |
case 0x54: /* EQ */
|
|
|
7874 |
DO_EQ
|
|
|
7875 |
break;
|
|
|
7876 |
|
|
|
7877 |
case 0x55: /* NEQ */
|
|
|
7878 |
DO_NEQ
|
|
|
7879 |
break;
|
|
|
7880 |
|
|
|
7881 |
case 0x56: /* ODD */
|
|
|
7882 |
DO_ODD
|
|
|
7883 |
break;
|
|
|
7884 |
|
|
|
7885 |
case 0x57: /* EVEN */
|
|
|
7886 |
DO_EVEN
|
|
|
7887 |
break;
|
|
|
7888 |
|
|
|
7889 |
case 0x58: /* IF */
|
|
|
7890 |
Ins_IF( EXEC_ARG_ args );
|
|
|
7891 |
break;
|
|
|
7892 |
|
|
|
7893 |
case 0x59: /* EIF */
|
|
|
7894 |
/* do nothing */
|
|
|
7895 |
break;
|
|
|
7896 |
|
|
|
7897 |
case 0x5A: /* AND */
|
|
|
7898 |
DO_AND
|
|
|
7899 |
break;
|
|
|
7900 |
|
|
|
7901 |
case 0x5B: /* OR */
|
|
|
7902 |
DO_OR
|
|
|
7903 |
break;
|
|
|
7904 |
|
|
|
7905 |
case 0x5C: /* NOT */
|
|
|
7906 |
DO_NOT
|
|
|
7907 |
break;
|
|
|
7908 |
|
|
|
7909 |
case 0x5D: /* DELTAP1 */
|
|
|
7910 |
Ins_DELTAP( EXEC_ARG_ args );
|
|
|
7911 |
break;
|
|
|
7912 |
|
|
|
7913 |
case 0x5E: /* SDB */
|
|
|
7914 |
DO_SDB
|
|
|
7915 |
break;
|
|
|
7916 |
|
|
|
7917 |
case 0x5F: /* SDS */
|
|
|
7918 |
DO_SDS
|
|
|
7919 |
break;
|
|
|
7920 |
|
|
|
7921 |
case 0x60: /* ADD */
|
|
|
7922 |
DO_ADD
|
|
|
7923 |
break;
|
|
|
7924 |
|
|
|
7925 |
case 0x61: /* SUB */
|
|
|
7926 |
DO_SUB
|
|
|
7927 |
break;
|
|
|
7928 |
|
|
|
7929 |
case 0x62: /* DIV */
|
|
|
7930 |
DO_DIV
|
|
|
7931 |
break;
|
|
|
7932 |
|
|
|
7933 |
case 0x63: /* MUL */
|
|
|
7934 |
DO_MUL
|
|
|
7935 |
break;
|
|
|
7936 |
|
|
|
7937 |
case 0x64: /* ABS */
|
|
|
7938 |
DO_ABS
|
|
|
7939 |
break;
|
|
|
7940 |
|
|
|
7941 |
case 0x65: /* NEG */
|
|
|
7942 |
DO_NEG
|
|
|
7943 |
break;
|
|
|
7944 |
|
|
|
7945 |
case 0x66: /* FLOOR */
|
|
|
7946 |
DO_FLOOR
|
|
|
7947 |
break;
|
|
|
7948 |
|
|
|
7949 |
case 0x67: /* CEILING */
|
|
|
7950 |
DO_CEILING
|
|
|
7951 |
break;
|
|
|
7952 |
|
|
|
7953 |
case 0x68: /* ROUND */
|
|
|
7954 |
case 0x69: /* ROUND */
|
|
|
7955 |
case 0x6A: /* ROUND */
|
|
|
7956 |
case 0x6B: /* ROUND */
|
|
|
7957 |
DO_ROUND
|
|
|
7958 |
break;
|
|
|
7959 |
|
|
|
7960 |
case 0x6C: /* NROUND */
|
|
|
7961 |
case 0x6D: /* NROUND */
|
|
|
7962 |
case 0x6E: /* NRRUND */
|
|
|
7963 |
case 0x6F: /* NROUND */
|
|
|
7964 |
DO_NROUND
|
|
|
7965 |
break;
|
|
|
7966 |
|
|
|
7967 |
case 0x70: /* WCVTF */
|
|
|
7968 |
DO_WCVTF
|
|
|
7969 |
break;
|
|
|
7970 |
|
|
|
7971 |
case 0x71: /* DELTAP2 */
|
|
|
7972 |
case 0x72: /* DELTAP3 */
|
|
|
7973 |
Ins_DELTAP( EXEC_ARG_ args );
|
|
|
7974 |
break;
|
|
|
7975 |
|
|
|
7976 |
case 0x73: /* DELTAC0 */
|
|
|
7977 |
case 0x74: /* DELTAC1 */
|
|
|
7978 |
case 0x75: /* DELTAC2 */
|
|
|
7979 |
Ins_DELTAC( EXEC_ARG_ args );
|
|
|
7980 |
break;
|
|
|
7981 |
|
|
|
7982 |
case 0x76: /* SROUND */
|
|
|
7983 |
DO_SROUND
|
|
|
7984 |
break;
|
|
|
7985 |
|
|
|
7986 |
case 0x77: /* S45Round */
|
|
|
7987 |
DO_S45ROUND
|
|
|
7988 |
break;
|
|
|
7989 |
|
|
|
7990 |
case 0x78: /* JROT */
|
|
|
7991 |
DO_JROT
|
|
|
7992 |
break;
|
|
|
7993 |
|
|
|
7994 |
case 0x79: /* JROF */
|
|
|
7995 |
DO_JROF
|
|
|
7996 |
break;
|
|
|
7997 |
|
|
|
7998 |
case 0x7A: /* ROFF */
|
|
|
7999 |
DO_ROFF
|
|
|
8000 |
break;
|
|
|
8001 |
|
|
|
8002 |
case 0x7B: /* ???? */
|
|
|
8003 |
Ins_UNKNOWN( EXEC_ARG_ args );
|
|
|
8004 |
break;
|
|
|
8005 |
|
|
|
8006 |
case 0x7C: /* RUTG */
|
|
|
8007 |
DO_RUTG
|
|
|
8008 |
break;
|
|
|
8009 |
|
|
|
8010 |
case 0x7D: /* RDTG */
|
|
|
8011 |
DO_RDTG
|
|
|
8012 |
break;
|
|
|
8013 |
|
|
|
8014 |
case 0x7E: /* SANGW */
|
|
|
8015 |
case 0x7F: /* AA */
|
|
|
8016 |
/* nothing - obsolete */
|
|
|
8017 |
break;
|
|
|
8018 |
|
|
|
8019 |
case 0x80: /* FLIPPT */
|
|
|
8020 |
Ins_FLIPPT( EXEC_ARG_ args );
|
|
|
8021 |
break;
|
|
|
8022 |
|
|
|
8023 |
case 0x81: /* FLIPRGON */
|
|
|
8024 |
Ins_FLIPRGON( EXEC_ARG_ args );
|
|
|
8025 |
break;
|
|
|
8026 |
|
|
|
8027 |
case 0x82: /* FLIPRGOFF */
|
|
|
8028 |
Ins_FLIPRGOFF( EXEC_ARG_ args );
|
|
|
8029 |
break;
|
|
|
8030 |
|
|
|
8031 |
case 0x83: /* UNKNOWN */
|
|
|
8032 |
case 0x84: /* UNKNOWN */
|
|
|
8033 |
Ins_UNKNOWN( EXEC_ARG_ args );
|
|
|
8034 |
break;
|
|
|
8035 |
|
|
|
8036 |
case 0x85: /* SCANCTRL */
|
|
|
8037 |
Ins_SCANCTRL( EXEC_ARG_ args );
|
|
|
8038 |
break;
|
|
|
8039 |
|
|
|
8040 |
case 0x86: /* SDPVTL */
|
|
|
8041 |
case 0x87: /* SDPVTL */
|
|
|
8042 |
Ins_SDPVTL( EXEC_ARG_ args );
|
|
|
8043 |
break;
|
|
|
8044 |
|
|
|
8045 |
case 0x88: /* GETINFO */
|
|
|
8046 |
Ins_GETINFO( EXEC_ARG_ args );
|
|
|
8047 |
break;
|
|
|
8048 |
|
|
|
8049 |
case 0x89: /* IDEF */
|
|
|
8050 |
Ins_IDEF( EXEC_ARG_ args );
|
|
|
8051 |
break;
|
|
|
8052 |
|
|
|
8053 |
case 0x8A: /* ROLL */
|
|
|
8054 |
Ins_ROLL( EXEC_ARG_ args );
|
|
|
8055 |
break;
|
|
|
8056 |
|
|
|
8057 |
case 0x8B: /* MAX */
|
|
|
8058 |
DO_MAX
|
|
|
8059 |
break;
|
|
|
8060 |
|
|
|
8061 |
case 0x8C: /* MIN */
|
|
|
8062 |
DO_MIN
|
|
|
8063 |
break;
|
|
|
8064 |
|
|
|
8065 |
case 0x8D: /* SCANTYPE */
|
|
|
8066 |
Ins_SCANTYPE( EXEC_ARG_ args );
|
|
|
8067 |
break;
|
|
|
8068 |
|
|
|
8069 |
case 0x8E: /* INSTCTRL */
|
|
|
8070 |
Ins_INSTCTRL( EXEC_ARG_ args );
|
|
|
8071 |
break;
|
|
|
8072 |
|
|
|
8073 |
case 0x8F:
|
|
|
8074 |
Ins_UNKNOWN( EXEC_ARG_ args );
|
|
|
8075 |
break;
|
|
|
8076 |
|
|
|
8077 |
default:
|
|
|
8078 |
if ( opcode >= 0xE0 )
|
|
|
8079 |
Ins_MIRP( EXEC_ARG_ args );
|
|
|
8080 |
else if ( opcode >= 0xC0 )
|
|
|
8081 |
Ins_MDRP( EXEC_ARG_ args );
|
|
|
8082 |
else if ( opcode >= 0xB8 )
|
|
|
8083 |
Ins_PUSHW( EXEC_ARG_ args );
|
|
|
8084 |
else if ( opcode >= 0xB0 )
|
|
|
8085 |
Ins_PUSHB( EXEC_ARG_ args );
|
|
|
8086 |
else
|
|
|
8087 |
Ins_UNKNOWN( EXEC_ARG_ args );
|
|
|
8088 |
}
|
|
|
8089 |
|
|
|
8090 |
}
|
|
|
8091 |
|
|
|
8092 |
#else
|
|
|
8093 |
|
|
|
8094 |
Instruct_Dispatch[CUR.opcode]( EXEC_ARG_ &CUR.stack[CUR.args] );
|
|
|
8095 |
|
|
|
8096 |
#endif /* TT_CONFIG_OPTION_INTERPRETER_SWITCH */
|
|
|
8097 |
|
|
|
8098 |
if ( CUR.error != TT_Err_Ok )
|
|
|
8099 |
{
|
|
|
8100 |
switch ( CUR.error )
|
|
|
8101 |
{
|
|
|
8102 |
case TT_Err_Invalid_Opcode: /* looking for redefined instructions */
|
|
|
8103 |
{
|
|
|
8104 |
TT_DefRecord* def = CUR.IDefs;
|
|
|
8105 |
TT_DefRecord* limit = def + CUR.numIDefs;
|
|
|
8106 |
|
|
|
8107 |
|
|
|
8108 |
for ( ; def < limit; def++ )
|
|
|
8109 |
{
|
|
|
8110 |
if ( def->active && CUR.opcode == (FT_Byte)def->opc )
|
|
|
8111 |
{
|
|
|
8112 |
TT_CallRec* callrec;
|
|
|
8113 |
|
|
|
8114 |
|
|
|
8115 |
if ( CUR.callTop >= CUR.callSize )
|
|
|
8116 |
{
|
|
|
8117 |
CUR.error = TT_Err_Invalid_Reference;
|
|
|
8118 |
goto LErrorLabel_;
|
|
|
8119 |
}
|
|
|
8120 |
|
|
|
8121 |
callrec = &CUR.callStack[CUR.callTop];
|
|
|
8122 |
|
|
|
8123 |
callrec->Caller_Range = CUR.curRange;
|
|
|
8124 |
callrec->Caller_IP = CUR.IP + 1;
|
|
|
8125 |
callrec->Cur_Count = 1;
|
|
|
8126 |
callrec->Cur_Restart = def->start;
|
|
|
8127 |
|
|
|
8128 |
if ( INS_Goto_CodeRange( def->range, def->start ) == FAILURE )
|
|
|
8129 |
goto LErrorLabel_;
|
|
|
8130 |
|
|
|
8131 |
goto LSuiteLabel_;
|
|
|
8132 |
}
|
|
|
8133 |
}
|
|
|
8134 |
}
|
|
|
8135 |
|
|
|
8136 |
CUR.error = TT_Err_Invalid_Opcode;
|
|
|
8137 |
goto LErrorLabel_;
|
|
|
8138 |
|
|
|
8139 |
#if 0
|
|
|
8140 |
break; /* Unreachable code warning suppression. */
|
|
|
8141 |
/* Leave to remind in case a later change the editor */
|
|
|
8142 |
/* to consider break; */
|
|
|
8143 |
#endif
|
|
|
8144 |
|
|
|
8145 |
default:
|
|
|
8146 |
goto LErrorLabel_;
|
|
|
8147 |
|
|
|
8148 |
#if 0
|
|
|
8149 |
break;
|
|
|
8150 |
#endif
|
|
|
8151 |
}
|
|
|
8152 |
}
|
|
|
8153 |
|
|
|
8154 |
CUR.top = CUR.new_top;
|
|
|
8155 |
|
|
|
8156 |
if ( CUR.step_ins )
|
|
|
8157 |
CUR.IP += CUR.length;
|
|
|
8158 |
|
|
|
8159 |
/* increment instruction counter and check if we didn't */
|
|
|
8160 |
/* run this program for too long (e.g. infinite loops). */
|
|
|
8161 |
if ( ++ins_counter > MAX_RUNNABLE_OPCODES )
|
|
|
8162 |
return TT_Err_Execution_Too_Long;
|
|
|
8163 |
|
|
|
8164 |
LSuiteLabel_:
|
|
|
8165 |
if ( CUR.IP >= CUR.codeSize )
|
|
|
8166 |
{
|
|
|
8167 |
if ( CUR.callTop > 0 )
|
|
|
8168 |
{
|
|
|
8169 |
CUR.error = TT_Err_Code_Overflow;
|
|
|
8170 |
goto LErrorLabel_;
|
|
|
8171 |
}
|
|
|
8172 |
else
|
|
|
8173 |
goto LNo_Error_;
|
|
|
8174 |
}
|
|
|
8175 |
} while ( !CUR.instruction_trap );
|
|
|
8176 |
|
|
|
8177 |
LNo_Error_:
|
|
|
8178 |
|
|
|
8179 |
#ifdef TT_CONFIG_OPTION_STATIC_RASTER
|
|
|
8180 |
*exc = cur;
|
|
|
8181 |
#endif
|
|
|
8182 |
|
|
|
8183 |
return TT_Err_Ok;
|
|
|
8184 |
|
|
|
8185 |
LErrorCodeOverflow_:
|
|
|
8186 |
CUR.error = TT_Err_Code_Overflow;
|
|
|
8187 |
|
|
|
8188 |
LErrorLabel_:
|
|
|
8189 |
|
|
|
8190 |
#ifdef TT_CONFIG_OPTION_STATIC_RASTER
|
|
|
8191 |
*exc = cur;
|
|
|
8192 |
#endif
|
|
|
8193 |
|
|
|
8194 |
/* If any errors have occurred, function tables may be broken. */
|
|
|
8195 |
/* Force a re-execution of `prep' and `fpgm' tables if no */
|
|
|
8196 |
/* bytecode debugger is run. */
|
|
|
8197 |
if ( CUR.error && !CUR.instruction_trap )
|
|
|
8198 |
{
|
|
|
8199 |
FT_TRACE1(( " The interpreter returned error 0x%x\n", CUR.error ));
|
|
|
8200 |
exc->size->cvt_ready = FALSE;
|
|
|
8201 |
}
|
|
|
8202 |
|
|
|
8203 |
return CUR.error;
|
|
|
8204 |
}
|
|
|
8205 |
|
|
|
8206 |
|
|
|
8207 |
#endif /* TT_USE_BYTECODE_INTERPRETER */
|
|
|
8208 |
|
|
|
8209 |
|
|
|
8210 |
/* END */
|