1a2ac678e0
- loadsave.c : common things - fileformats.c : format that make a full backup of any picture without palette loss - miscfileformats.c : formats that are not saving all the picture (palette only, pixels only, constrained palette) I was not very precise in the splitting and we may rethink the flags that mark if a picture is fully saved or not... it was not updated after we decided to allow the full palette range 0.255 instead of 0.63, so most of the atari format were marked as saving everything. git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1120 416bcca6-2ee7-4201-b75f-2eb2f807beb1
99 lines
3.6 KiB
C
99 lines
3.6 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 18 ///< 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 17 ///< Total number of known file formats.
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#endif
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// This is here and not in fileformats.c because the emergency save uses it...
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#pragma pack(1)
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typedef struct
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{
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byte Filler1[6];
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word Width;
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word Height;
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byte Filler2[118];
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T_Palette Palette;
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} T_IMG_Header;
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#pragma pack()
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// Donn<6E>es pour la gestion du chargement en 24b
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#define FORMAT_24B 0x100
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typedef void (* Func_24b_display) (short,short,byte,byte,byte);
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extern int Image_24b;
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extern T_Components * Buffer_image_24b;
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extern Func_24b_display Pixel_load_24b;
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void Pixel_load_in_24b_preview(short x_pos,short y_pos,byte r,byte g,byte b);
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extern enum PIXEL_RATIO Ratio_of_loaded_image;
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