ref: 423fce2e3ed63ee48d2142a92e588a57633ae32b
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_ 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 */