65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/**
|
|
* libpsd - Photoshop file formats (*.psd) decode library
|
|
* Copyright (C) 2004-2007 Graphest Software.
|
|
*
|
|
* libpsd is the legal property of its developers, whose names are too numerous
|
|
* to list here. Please refer to the COPYRIGHT file distributed with this
|
|
* source distribution.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Library General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* $Id: invert.c, created by Patrick in 2006.05.22, libpsd@graphest.com Exp $
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include "libpsd.h"
|
|
#include "psd_stream.h"
|
|
#include "psd_color.h"
|
|
#include "psd_rect.h"
|
|
#include "psd_blend.h"
|
|
|
|
|
|
extern void psd_adjustment_blend_image(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect,
|
|
psd_uchar * lookup_table);
|
|
|
|
|
|
psd_status psd_get_layer_invert(psd_context * context, psd_layer_record * layer)
|
|
{
|
|
layer->layer_info_type[layer->layer_info_count] = psd_layer_info_type_invert;
|
|
layer->layer_type = psd_layer_type_invert;
|
|
layer->layer_info_count ++;
|
|
// there is no parameter in invert layer.
|
|
|
|
layer->adjustment_valid = psd_true;
|
|
|
|
return psd_status_done;
|
|
}
|
|
|
|
psd_bool psd_layer_blend_invert(psd_context * context, psd_layer_record * layer, psd_rect * dst_rect)
|
|
{
|
|
psd_int i;
|
|
psd_uchar lookup_table[256];
|
|
|
|
for(i = 0; i < 256; i ++)
|
|
lookup_table[i] = 255 - i;
|
|
|
|
psd_adjustment_blend_image(context, layer, dst_rect, lookup_table);
|
|
|
|
layer->adjustment_valid = psd_false;
|
|
|
|
return psd_true;
|
|
}
|
|
|