ref: 28eee3636caa8b933aaaccf47102bd2e698f29f6
dir: /src/psaux/psstack.h/
/****************************************************************************
*
* psstack.h
*
* Adobe's code for emulating a CFF stack (specification).
*
* Copyright 2007-2013 Adobe Systems Incorporated.
*
* This software, and all works of authorship, whether in source or
* object code form as indicated by the copyright notice(s) included
* herein (collectively, the "Work") is made available, and may only be
* used, modified, and distributed under the FreeType Project License,
* LICENSE.TXT. Additionally, subject to the terms and conditions of the
* FreeType Project License, each contributor to the Work hereby grants
* to any individual or legal entity exercising permissions granted by
* the FreeType Project License and this section (hereafter, "You" or
* "Your") a perpetual, worldwide, non-exclusive, no-charge,
* royalty-free, irrevocable (except as stated in this section) patent
* license to make, have made, use, offer to sell, sell, import, and
* otherwise transfer the Work, where such license applies only to those
* patent claims licensable by such contributor that are necessarily
* infringed by their contribution(s) alone or by combination of their
* contribution(s) with the Work to which such contribution(s) was
* submitted. If You institute patent litigation against any entity
* (including a cross-claim or counterclaim in a lawsuit) alleging that
* the Work or a contribution incorporated within the Work constitutes
* direct or contributory patent infringement, then any patent licenses
* granted to You under this License for that Work shall terminate as of
* the date such litigation is filed.
*
* By using, modifying, or distributing the Work you indicate that you
* have read and understood the terms and conditions of the
* FreeType Project License as well as those provided in this section,
* and you accept them fully.
*
*/
#ifndef PSSTACK_H_
#define PSSTACK_H_
#include <freetype/internal/compiler-macros.h>
FT_BEGIN_HEADER
/* CFF operand stack; specified maximum of 48 or 192 values */
typedef struct CF2_StackNumber_
{
union
{
CF2_Fixed r; /* 16.16 fixed point */
CF2_Frac f; /* 2.30 fixed point (for font matrix) */
CF2_Int i;
} u;
CF2_NumberType type;
} CF2_StackNumber;
typedef struct CF2_StackRec_
{
FT_Memory memory;
FT_Error* error;
CF2_StackNumber* buffer;
CF2_StackNumber* top;
FT_UInt stackSize;
} CF2_StackRec, *CF2_Stack;
FT_LOCAL( CF2_Stack )
cf2_stack_init( FT_Memory memory,
FT_Error* error,
FT_UInt stackSize );
FT_LOCAL( void )
cf2_stack_free( CF2_Stack stack );
FT_LOCAL( CF2_UInt )
cf2_stack_count( CF2_Stack stack );
FT_LOCAL( void )
cf2_stack_pushInt( CF2_Stack stack,
CF2_Int val );
FT_LOCAL( void )
cf2_stack_pushFixed( CF2_Stack stack,
CF2_Fixed val );
FT_LOCAL( CF2_Int )
cf2_stack_popInt( CF2_Stack stack );
FT_LOCAL( CF2_Fixed )
cf2_stack_popFixed( CF2_Stack stack );
FT_LOCAL( CF2_Fixed )
cf2_stack_getReal( CF2_Stack stack,
CF2_UInt idx );
FT_LOCAL( void )
cf2_stack_setReal( CF2_Stack stack,
CF2_UInt idx,
CF2_Fixed val );
FT_LOCAL( void )
cf2_stack_pop( CF2_Stack stack,
CF2_UInt num );
FT_LOCAL( void )
cf2_stack_roll( CF2_Stack stack,
CF2_Int count,
CF2_Int idx );
FT_LOCAL( void )
cf2_stack_clear( CF2_Stack stack );
FT_END_HEADER
#endif /* PSSTACK_H_ */
/* END */