forked from minhngoc25a/freetype2
107 lines
4.1 KiB
C
107 lines
4.1 KiB
C
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/***************************************************************************/
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/* */
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/* cf2stack.h */
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/* */
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/* Adobe's code for emulating a CFF stack (specification). */
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/* */
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/* Copyright 2007-2013 Adobe Systems Incorporated. */
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/* */
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/* This software, and all works of authorship, whether in source or */
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/* object code form as indicated by the copyright notice(s) included */
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/* herein (collectively, the "Work") is made available, and may only be */
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/* used, modified, and distributed under the FreeType Project License, */
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/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
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/* FreeType Project License, each contributor to the Work hereby grants */
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/* to any individual or legal entity exercising permissions granted by */
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/* the FreeType Project License and this section (hereafter, "You" or */
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/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
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/* royalty-free, irrevocable (except as stated in this section) patent */
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/* license to make, have made, use, offer to sell, sell, import, and */
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/* otherwise transfer the Work, where such license applies only to those */
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/* patent claims licensable by such contributor that are necessarily */
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/* infringed by their contribution(s) alone or by combination of their */
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/* contribution(s) with the Work to which such contribution(s) was */
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/* submitted. If You institute patent litigation against any entity */
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/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
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/* the Work or a contribution incorporated within the Work constitutes */
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/* direct or contributory patent infringement, then any patent licenses */
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/* granted to You under this License for that Work shall terminate as of */
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/* the date such litigation is filed. */
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/* */
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/* By using, modifying, or distributing the Work you indicate that you */
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/* have read and understood the terms and conditions of the */
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/* FreeType Project License as well as those provided in this section, */
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/* and you accept them fully. */
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/* */
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/***************************************************************************/
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#ifndef __CF2STACK_H__
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#define __CF2STACK_H__
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FT_BEGIN_HEADER
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/* CFF operand stack; specified maximum of 48 or 192 values */
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typedef struct CF2_StackNumber_
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{
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union
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{
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CF2_Fixed r; /* 16.16 fixed point */
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CF2_Frac f; /* 2.30 fixed point (for font matrix) */
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CF2_Int i;
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} u;
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CF2_NumberType type;
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} CF2_StackNumber;
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typedef struct CF2_StackRec_
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{
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FT_Memory memory;
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FT_Error* error;
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CF2_StackNumber buffer[CF2_OPERAND_STACK_SIZE];
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CF2_StackNumber* top;
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} CF2_StackRec, *CF2_Stack;
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FT_LOCAL( CF2_Stack )
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cf2_stack_init( FT_Memory memory,
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FT_Error* error );
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FT_LOCAL( void )
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cf2_stack_free( CF2_Stack stack );
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FT_LOCAL( CF2_UInt )
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cf2_stack_count( CF2_Stack stack );
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FT_LOCAL( void )
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cf2_stack_pushInt( CF2_Stack stack,
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CF2_Int val );
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FT_LOCAL( void )
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cf2_stack_pushFixed( CF2_Stack stack,
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CF2_Fixed val );
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FT_LOCAL( CF2_Int )
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cf2_stack_popInt( CF2_Stack stack );
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FT_LOCAL( CF2_Fixed )
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cf2_stack_popFixed( CF2_Stack stack );
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FT_LOCAL( CF2_Fixed )
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cf2_stack_getReal( CF2_Stack stack,
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CF2_UInt idx );
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FT_LOCAL( void )
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cf2_stack_clear( CF2_Stack stack );
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FT_END_HEADER
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#endif /* __CF2STACK_H__ */
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/* END */
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