/* === S Y N F I G ========================================================= */
/*! \file trgt_png_spritesheet.h
** \brief Sprite sheet render target.
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2013 Moritz Grosch (LittleFox) <littlefox@fsfe.org>
** Copyright (c) 2015 Denis Zdorovtsov (mrtrizer) <mrtrizer@gmail.com>
**
** Based on trgt_png.h
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package 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.
** \endlegal
**
** === N O T E S ===========================================================
**
** ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_TRGT_PNG_SPRITESHEET_H
#define __SYNFIG_TRGT_PNG_SPRITESHEET_H
/* === H E A D E R S ======================================================= */
#include <png.h>
#include <synfig/target_scanline.h>
#include <synfig/string.h>
#include <synfig/targetparam.h>
#include <cstdio>
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
class png_trgt_spritesheet : public synfig::Target_Scanline
{
SYNFIG_TARGET_MODULE_EXT
private:
struct PngImage
{
PngImage():
width(0),
height(0),
color_type(0),
bit_depth(0){}
unsigned int width;
unsigned int height;
png_byte color_type;
png_byte bit_depth;
png_structp png_ptr;
png_infop info_ptr;
};
static void png_out_error(png_struct *png,const char *msg);
static void png_out_warning(png_struct *png,const char *msg);
bool ready;
bool initialized;
int imagecount;
int lastimage;
int numimages;
unsigned int cur_y;
unsigned int cur_row;
unsigned int cur_col;
synfig::TargetParam params;
synfig::Color ** color_data;
unsigned int sheet_width;
unsigned int sheet_height;
FILE * in_file_pointer;
FILE * out_file_pointer;
unsigned int cur_out_image_row;
PngImage in_image;
synfig::String filename;
synfig::String sequence_separator;
synfig::Color * overflow_buff;
public:
png_trgt_spritesheet(const char *filename, const synfig::TargetParam& /* params */);
virtual ~png_trgt_spritesheet();
virtual bool set_rend_desc(synfig::RendDesc *desc);
virtual bool start_frame(synfig::ProgressCallback *cb);
virtual void end_frame();
virtual synfig::Color * start_scanline(int scanline);
virtual bool end_scanline();
bool read_png_file();
bool write_png_file();
bool load_png_file();
};
/* === E N D =============================================================== */
#endif