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/*
* The Python Imaging Library
* $Id: Access.c 2134 2004-10-06 08:55:20Z fredrik $
*
* imaging access objects
*
* an access object can convert image data on the fly
*
* history:
* 98-12-29 fl Created
*
* Copyright (c) Secret Labs AB 1998.
*
* See the README file for information on usage and redistribution.
*/
#include "Imaging.h"
static void
access_destroy(ImagingAccess access)
{
/* nop */
}
static int
access_getline(ImagingAccess access, char* buffer, int y)
{
memcpy(buffer, access->im->image[y], access->im->linesize);
return 1;
}
ImagingAccess
ImagingAccessNew(Imaging im)
{
/* Create a standard access object */
ImagingAccess access;
access = calloc(1, sizeof(struct ImagingAccessInstance));
if (!access)
return (ImagingAccess) ImagingError_MemoryError();
access->im = im;
access->getline = access_getline;
access->destroy = access_destroy;
return access;
}
void
ImagingAccessDelete(ImagingAccess access)
{
if (!access)
return;
if (access->destroy)
access->destroy(access);
free(access);
}
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