76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/* Grafx2 - The Ultimate 256-color bitmap paint program
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Copyright 2007 Adrien Destugues
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Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
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Grafx2 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2
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of the License.
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Grafx2 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grafx2; if not, see <http://www.gnu.org/licenses/>
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*/
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//////////////////////////////////////////////////////////////////////////////
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///@file loadsave.h
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/// Saving and loading different picture formats.
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/// Also handles showing the preview in fileselectors.
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//////////////////////////////////////////////////////////////////////////////
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void Pixel_load_in_current_screen(word x_pos,word y_pos,byte color);
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void Pixel_load_in_preview (word x_pos,word y_pos,byte color);
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void Pixel_load_in_brush (word x_pos,word y_pos,byte color);
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void Get_full_filename(char * filename, byte is_colorix_format);
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///
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/// High-level picture loading function.
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/// Handles loading an image or a brush, or previewing only.
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/// @param image true if the fileselector is the one for loading images (not brush)
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void Load_image(byte image);
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///
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/// High-level picture saving function.
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/// @param image true if the image should be saved (instead of the brush)
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void Save_image(byte image);
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/// Data for an image file format.
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typedef struct {
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byte Identifier; ///< Identifier for this format in enum :FILE_FORMATS
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char *Label; ///< Five-letter label
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Func_action Test; ///< Function which tests if the file is of this format
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Func_action Load; ///< Function which loads an image of this format
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Func_action Save; ///< Function which saves an image of this format
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byte Backup_done; ///< Boolean, true if this format saves all the image, and considers it backed up. Set false for formats which only save the palette.
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byte Comment; ///< This file format allows a text comment
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char *Default_extension; ///< Default file extension
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char *Extensions; ///< List of semicolon-separated file extensions
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} T_Format;
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/// Array of the known file formats
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extern T_Format File_formats[];
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///
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/// Function which attempts to save backups of the images (main and spare),
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/// called in case of SIGSEGV.
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void Image_emergency_backup(void);
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/// Pixel ratio of last loaded image: one of :PIXEL_SIMPLE, :PIXEL_WIDE or :PIXEL_TALL
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extern enum PIXEL_RATIO Ratio_of_loaded_image;
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T_Format * Get_fileformat(byte format);
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// -- File formats
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#ifndef __no_pnglib__
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#define NB_KNOWN_FORMATS 17 ///< Total number of known file formats.
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#else
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// Without pnglib
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#define NB_KNOWN_FORMATS 16 ///< Total number of known file formats.
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#endif
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