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/* Copyright (C) 2015-2023 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
implied.
This software is distributed under license and may not be copied,
modified or distributed except as expressly authorized under the terms
of the license contained in the file LICENSE in this distribution.
Refer to licensing information at http://www.artifex.com or contact
Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
CA 94129, USA, for further information.
*/
#include "claptrap.h"
#include "claptrap-impl.h"
ClapTrap *ClapTrap_Init(gs_memory_t *mem,
int width,
int height,
int num_comps,
const int *comp_order,
int max_x_offset,
int max_y_offset,
ClapTrap_LineFn *get_line,
void *get_line_arg)
{
ClapTrap *ct;
ct = (ClapTrap *)gs_alloc_bytes(mem, sizeof(*ct), "ClapTrap");
if (ct == NULL)
return NULL;
ct->width = width;
ct->height = height;
ct->num_comps = num_comps;
ct->comp_order = comp_order;
ct->max_x_offset = max_x_offset;
ct->max_y_offset = max_y_offset;
ct->get_line = get_line;
ct->get_line_arg = get_line_arg;
ct->lines_in_buf = max_y_offset * 2 + 1;
ct->lines_read = 0;
ct->y = 0;
ct->span = width * num_comps;
ct->linebuf = gs_alloc_bytes(mem, (size_t)ct->span * ct->lines_in_buf, "ClapTrap linebuf");
ct->process = gs_alloc_bytes(mem, (size_t)ct->width * ct->lines_in_buf, "ClapTrap process");
if (ct->linebuf == NULL || ct->process == NULL)
{
gs_free_object(mem, ct->linebuf, "ClapTrap linebuf");
gs_free_object(mem, ct->process, "ClapTrap process");
gs_free_object(mem, ct, "ClapTrap");
return NULL;
}
return ct;
}
void ClapTrap_Fin(gs_memory_t *mem, ClapTrap *ct)
{
if (ct)
{
gs_free_object(mem, ct->linebuf, "ClapTrap linebuf");
gs_free_object(mem, ct->process, "ClapTrap process");
}
gs_free_object(mem, ct, "ClapTrap");
}
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