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113 lines
4.0 KiB
C
113 lines
4.0 KiB
C
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program 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; either version 2
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* of the License, or (at your option) any later version.
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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/* Provides facilities for writing pictures and seperate views to .png files */
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#ifndef _SCI_GRAPHICS_PNG_H_
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#define _SCI_GRAPHICS_PNG_H_
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /* HAVE_CONFIG_H */
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#ifdef HAVE_LIBPNG
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#include <resource.h>
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#include <graphics.h>
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#include <png.h>
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int
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write_pic_png(char *filename, guint8 *pic);
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/* Stores a picture map in a png file
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** --DEPRECATED--
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** Parameters: (filename) The name of the file to create
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** (pic) A pointer to the picture map to store
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** Returns : (int) 0 on success, != 0 otherwise
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** Please note that pic must not point to a picture_t, it must point to a
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** map.
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** E.g. to store the foreground picture, you could use
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** write_pic_png("filename.png", picture->maps[0]).
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*/
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int
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png_save_buffer(picture_t pic, char *name,
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int xoffset, int yoffset, int width, int height,
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byte *data, int force_8bpp_special);
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/* Stores any buffer in a png file
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** Parameters: (picture_t) pic: The picture_t containing the parameters of the buffer
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** (char *) name: File name to write to
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** (int x int) xoffset, yoffset: relative screen position of the buffer
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** (int x int) width, height: Buffer size
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** (byte *) data: The actual data to write
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** (int) force_8bpp_special: See below
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** Returns : (int) 0 on success, 1 otherwise
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** Each graphics buffer is stored in the way that the corresponding picture_t
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** dictates (all buffers are either identical to, or parts of a past representation
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** of the picture_t map 0, after all).
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** force_8bpp_special overrides this and forces 8bpp palette mode for writing the
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** buffer.
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** This should only be used for maps 1 through 3, which are always in this format.
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*/
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byte *
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png_load_buffer(picture_t pic, char *name,
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int *xoffset, int *yoffset, int *width, int *height,
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int *size, int force_8bpp_special);
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/* Loads a buffer from a png file
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** Parameters: (picture_t) pic: The picture_t containing the target parameters
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** (char *) name: The file name of the file to read from
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** (int* x int*) xoffset, yoffset: Offset storage pointers
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** (int* x int*) width, height: Size storage pointers
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** (int*) size: Memory size storage pointer
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** (int) force_8bpp_special: Import file as 8bpp with palette
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** Returns : (byte *): The buffer on success, NULL otherwise
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** xoffset, yoffset, width, height, and size should each point to ints the picture
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** parameters are stored in. xoffset and yoffset may be set to NULL, though, in
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** order to be omitted.
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*/
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int
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png_save_pic(picture_t pic);
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/* Stores a picture_t in the current directory
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** Parameters: (picture_t) pic: The picture_t to store
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** Returns : (int) 0 on success, 1 otherwise
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*/
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int
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png_load_pic(picture_t pic);
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/* Loads a picture_t from the cwd
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** Parameters: (picture_t) pic: The structure to write to
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** Returns : (int) 0 on success, 1 otherwise
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** On error, the original pic status is retained.
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*/
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#endif /* HAVE_LIBPNG */
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#endif /* !_SCI_GRAPHICS_PNG_H_ */
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