godot/thirdparty/freetype/src/psaux/psstack.c

/****************************************************************************
 *
 * psstack.c
 *
 *   Adobe's code for emulating a CFF stack (body).
 *
 * 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.
 *
 */


#include "psft.h"
#include <freetype/internal/ftdebug.h>

#include "psglue.h"
#include "psfont.h"
#include "psstack.h"

#include "pserror.h"


  /* Allocate and initialize an instance of CF2_Stack.       */
  /* Note: This function returns NULL on error (does not set */
  /* `error').                                               */
  FT_LOCAL_DEF( CF2_Stack )
  cf2_stack_init( FT_Memory  memory,
                  FT_Error*  e,
                  FT_UInt    stackSize )
  { … }


  FT_LOCAL_DEF( void )
  cf2_stack_free( CF2_Stack  stack )
  { … }


  FT_LOCAL_DEF( CF2_UInt )
  cf2_stack_count( CF2_Stack  stack )
  { … }


  FT_LOCAL_DEF( void )
  cf2_stack_pushInt( CF2_Stack  stack,
                     CF2_Int    val )
  { … }


  FT_LOCAL_DEF( void )
  cf2_stack_pushFixed( CF2_Stack  stack,
                       CF2_Fixed  val )
  { … }


  /* this function is only allowed to pop an integer type */
  FT_LOCAL_DEF( CF2_Int )
  cf2_stack_popInt( CF2_Stack  stack )
  { … }


  /* Note: type mismatch is silently cast */
  /* TODO: check this                     */
  FT_LOCAL_DEF( CF2_Fixed )
  cf2_stack_popFixed( CF2_Stack  stack )
  { … }


  /* Note: type mismatch is silently cast */
  /* TODO: check this                     */
  FT_LOCAL_DEF( CF2_Fixed )
  cf2_stack_getReal( CF2_Stack  stack,
                     CF2_UInt   idx )
  { … }


  /* provide random access to stack */
  FT_LOCAL_DEF( void )
  cf2_stack_setReal( CF2_Stack  stack,
                     CF2_UInt   idx,
                     CF2_Fixed  val )
  { … }


  /* discard (pop) num values from stack */
  FT_LOCAL_DEF( void )
  cf2_stack_pop( CF2_Stack  stack,
                 CF2_UInt   num )
  { … }


  FT_LOCAL_DEF( void )
  cf2_stack_roll( CF2_Stack  stack,
                  CF2_Int    count,
                  CF2_Int    shift )
  { … }


  FT_LOCAL_DEF( void )
  cf2_stack_clear( CF2_Stack  stack )
  { … }


/* END */