psarrst.c File Reference

#include "psft.h"
#include "psglue.h"
#include "psarrst.h"
#include "pserror.h"

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Functions
	cf2_arrstack_init (CF2_ArrStack arrstack, FT_Memory memory, FT_Error *error, size_t sizeItem)
	cf2_arrstack_finalize (CF2_ArrStack arrstack)
static FT_Bool	cf2_arrstack_setNumElements (CF2_ArrStack arrstack, size_t numElements)
	cf2_arrstack_setCount (CF2_ArrStack arrstack, size_t numElements)
	cf2_arrstack_clear (CF2_ArrStack arrstack)
	cf2_arrstack_size (const CF2_ArrStack arrstack)
	cf2_arrstack_getBuffer (const CF2_ArrStack arrstack)
	cf2_arrstack_getPointer (const CF2_ArrStack arrstack, size_t idx)
	cf2_arrstack_push (CF2_ArrStack arrstack, const void *ptr)

Function Documentation

cf2_arrstack_clear()

cf2_arrstack_clear

(

CF2_ArrStack

arrstack

)

Definition at line 158 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    arrstack->count = 0;
  }

Referenced by cf2_hintmap_adjustHints(), and cf2_interpT2CharString().

cf2_arrstack_finalize()

cf2_arrstack_finalize

(

CF2_ArrStack

arrstack

)

Definition at line 76 of file psarrst.c.

  {
    FT_Memory  memory = arrstack->memory;     /* for FT_FREE */
 
 
    FT_ASSERT( arrstack );
 
    arrstack->allocated = 0;
    arrstack->count     = 0;
    arrstack->totalSize = 0;
 
    /* free the data buffer */
    FT_FREE( arrstack->ptr );
  }

Referenced by cf2_glyphpath_finalize(), and cf2_interpT2CharString().

cf2_arrstack_getBuffer()

cf2_arrstack_getBuffer

(

const CF2_ArrStack

arrstack

)

Definition at line 177 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    return arrstack->ptr;
  }

Referenced by cf2_interpT2CharString().

cf2_arrstack_getPointer()

cf2_arrstack_getPointer	(	const CF2_ArrStack	arrstack,
		size_t	idx
	)

Definition at line 187 of file psarrst.c.

  {
    void*  newPtr;
 
 
    FT_ASSERT( arrstack );
 
    if ( idx >= arrstack->count )
    {
      /* overflow */
      CF2_SET_ERROR( arrstack->error, Stack_Overflow );
      idx = 0;    /* choose safe default */
    }
 
    newPtr = (FT_Byte*)arrstack->ptr + idx * arrstack->sizeItem;
 
    return newPtr;
  }

Referenced by cf2_hint_init(), cf2_hintmap_adjustHints(), cf2_hintmap_build(), and cf2_interpT2CharString().

cf2_arrstack_init()

cf2_arrstack_init	(	CF2_ArrStack	arrstack,
		FT_Memory	memory,
		FT_Error *	error,
		size_t	sizeItem
	)

Definition at line 56 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    /* initialize the structure */
    arrstack->memory    = memory;
    arrstack->error     = error;
    arrstack->sizeItem  = sizeItem;
    arrstack->allocated = 0;
    arrstack->chunk     = 10;    /* chunks of 10 items */
    arrstack->count     = 0;
    arrstack->totalSize = 0;
    arrstack->ptr       = NULL;
  }

Referenced by cf2_glyphpath_init(), and cf2_interpT2CharString().

cf2_arrstack_push()

cf2_arrstack_push	(	CF2_ArrStack	arrstack,
		const void *	ptr
	)

Definition at line 212 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    if ( arrstack->count == arrstack->allocated )
    {
      /* grow the buffer by one chunk */
      if ( !cf2_arrstack_setNumElements(
             arrstack, arrstack->allocated + arrstack->chunk ) )
      {
        /* on error, ignore the push */
        return;
      }
    }
 
    FT_ASSERT( ptr );
 
    {
      size_t  offset = arrstack->count * arrstack->sizeItem;
      void*   newPtr = (FT_Byte*)arrstack->ptr + offset;
 
 
      FT_MEM_COPY( newPtr, ptr, arrstack->sizeItem );
      arrstack->count += 1;
    }
  }

Referenced by cf2_doStems(), and cf2_hintmap_adjustHints().

cf2_arrstack_setCount()

cf2_arrstack_setCount	(	CF2_ArrStack	arrstack,
		size_t	numElements
	)

Definition at line 140 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    if ( numElements > arrstack->allocated )
    {
      /* expand the allocation first */
      if ( !cf2_arrstack_setNumElements( arrstack, numElements ) )
        return;
    }
 
    arrstack->count = numElements;
  }

Referenced by cf2_interpT2CharString().

cf2_arrstack_setNumElements()

static FT_Bool cf2_arrstack_setNumElements ( CF2_ArrStack  arrstack, size_t  numElements  )

static

Definition at line 95 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    {
      FT_Error   error  = FT_Err_Ok;        /* for FT_REALLOC */
      FT_Memory  memory = arrstack->memory; /* for FT_REALLOC */
 
      size_t  newSize = numElements * arrstack->sizeItem;
 
 
      if ( numElements > FT_LONG_MAX / arrstack->sizeItem )
        goto exit;
 
 
      FT_ASSERT( newSize > 0 );   /* avoid realloc with zero size */
 
      if ( !FT_REALLOC( arrstack->ptr, arrstack->totalSize, newSize ) )
      {
        arrstack->allocated = numElements;
        arrstack->totalSize = newSize;
 
        if ( arrstack->count > numElements )
        {
          /* we truncated the list! */
          CF2_SET_ERROR( arrstack->error, Stack_Overflow );
          arrstack->count = numElements;
          return FALSE;
        }
 
        return TRUE;     /* success */
      }
    }
 
  exit:
    /* if there's not already an error, store this one */
    CF2_SET_ERROR( arrstack->error, Out_Of_Memory );
 
    return FALSE;
  }

Referenced by cf2_arrstack_push(), and cf2_arrstack_setCount().

cf2_arrstack_size()

cf2_arrstack_size

(

const CF2_ArrStack

arrstack

)

Definition at line 168 of file psarrst.c.

  {
    FT_ASSERT( arrstack );
 
    return arrstack->count;
  }

Referenced by cf2_hintmap_adjustHints(), cf2_hintmap_build(), and cf2_interpT2CharString().