ref: 71f661804e88db5b12cc1a143e03ef53b5eab894
dir: /src/cff/cf2stack.h/
/***************************************************************************/
/* */
/* cf2stack.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 */
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/* (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 */
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/* By using, modifying, or distributing the Work you indicate that you */
/* have read and understood the terms and conditions of the */
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/* */
/***************************************************************************/
#ifndef CF2STACK_H_
#define CF2STACK_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 /* CF2STACK_H_ */
/* END */