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/* Flattning functions for xcftools
*
* Copyright (C) 2006 Henning Makholm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FLATTEN_H
#define FLATTEN_H
#include "xcftools.h"
#include "pixels.h"
#define PERHAPS_ALPHA_CHANNEL (NEWALPHA(0,1))
#define FORCE_ALPHA_CHANNEL (NEWALPHA(0,2))
#define CHECKERED_BACKGROUND (NEWALPHA(0,200))
struct FlattenSpec {
struct tileDimensions dim ;
rgba default_pixel ;
int numLayers ;
struct xcfLayer *layers ;
const char * transmap_filename ;
const char * output_filename ;
enum out_color_mode {
COLOR_BY_FILENAME,
COLOR_BY_CONTENTS,
COLOR_INDEXED,
COLOR_RGB,
COLOR_GRAY,
COLOR_MONO
} out_color_mode ;
enum { ALLOW_PARTIAL_TRANSPARENCY,
DISSOLVE_PARTIAL_TRANSPARENCY,
FORBID_PARTIAL_TRANSPARENCY,
PARTIAL_TRANSPARENCY_IMPOSSIBLE
} partial_transparency_mode ;
enum { USE_CANVAS = 0,
MANUAL_OFFSET = 1,
MANUAL_CROP = 2,
AUTOCROP = 4 } window_mode ;
int process_in_memory ;
int gimpish_indexed ;
};
/* From flatspec.c */
void init_flatspec(struct FlattenSpec *);
void add_layer_request(struct FlattenSpec *,const char *name);
struct xcfLayer *lastlayerspec(struct FlattenSpec *,const char *option);
typedef enum out_color_mode (*guesser) (struct FlattenSpec *,rgba **);
/* Call this after processing options, and after opening the XCF file */
void complete_flatspec(struct FlattenSpec *,guesser);
void analyse_colormode(struct FlattenSpec *,rgba **allPixels,guesser);
/* From flatten.c */
typedef void (*lineCallback)(unsigned num,rgba *pixels);
void flattenIncrementally(struct FlattenSpec *,lineCallback);
rgba **flattenAll(struct FlattenSpec*);
void shipoutWithCallback(struct FlattenSpec *,rgba **pixels,lineCallback);
#endif /* FLATTEN_H */
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