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Diffstat (limited to 'image/gifread.h')
| -rw-r--r-- | image/gifread.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/image/gifread.h b/image/gifread.h deleted file mode 100644 index 292c5a86d..000000000 --- a/image/gifread.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright 2004 Richard Wilson <not_ginger_matt@users.sourceforge.net> - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf 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; version 2 of the License. - * - * NetSurf 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, see <http://www.gnu.org/licenses/>. - */ - -/** \file - * Progressive animated GIF file decoding (interface). - */ - -#ifndef _NETSURF_IMAGE_GIFREAD_H_ -#define _NETSURF_IMAGE_GIFREAD_H_ - -#include <stdbool.h> -#include "image/bitmap.h" - -/* Error return values -*/ -#define GIF_INSUFFICIENT_FRAME_DATA -1 -#define GIF_FRAME_DATA_ERROR -2 -#define GIF_INSUFFICIENT_DATA -3 -#define GIF_DATA_ERROR -4 -#define GIF_INSUFFICIENT_MEMORY -5 - -/* Maximum colour table size -*/ -#define GIF_MAX_COLOURS 256 - -/* Maximum LZW bits available -*/ -#define GIF_MAX_LZW 12 - -/* The GIF frame data -*/ -typedef struct gif_frame { - unsigned int frame_pointer; /**< offset (in bytes) to the GIF frame data */ - unsigned int frame_delay; /**< delay (in cs) before animating the frame */ - bool virgin; /**< whether the frame has previously been used */ - bool opaque; /**< whether the frame is totally opaque */ - bool redraw_required; /**< whether a forcable screen redraw is required */ - unsigned int redraw_x; /**< x co-ordinate of redraw rectangle */ - unsigned int redraw_y; /**< y co-ordinate of redraw rectangle */ - unsigned int redraw_width; /**< width of redraw rectangle */ - unsigned int redraw_height; /**< height of redraw rectangle */ -} gif_frame; - -/* The GIF animation data -*/ -typedef struct gif_animation { - unsigned char *gif_data; /**< pointer to GIF data */ - unsigned int buffer_position; /**< current index into GIF data */ - unsigned int buffer_size; /**< total number of bytes of GIF data available */ - unsigned int frame_holders; /**< current number of frame holders */ - int decoded_frame; /**< current frame decoded to bitmap */ - int loop_count; /**< number of times to loop animation */ - gif_frame *frames; /**< decoded frames */ - unsigned int width; /**< width of GIF (may increase during decoding) */ - unsigned int height; /**< heigth of GIF (may increase during decoding) */ - unsigned int frame_count; /**< number of frames decoded */ - unsigned int frame_count_partial; /**< number of frames partially decoded */ - unsigned int background_colour; /**< image background colour */ - unsigned int aspect_ratio; /**< image aspect ratio (ignored) */ - unsigned int colour_table_size; /**< size of colour table (in entries) */ - bool global_colours; /**< whether the GIF has a global colour table */ - unsigned int *global_colour_table; /**< global colour table */ - unsigned int *local_colour_table; /**< local colour table */ - int dirty_frame; /**< the current dirty frame, or -1 for none */ - struct bitmap *frame_image; /**< currently decoded image */ - int current_error; /**< current error type, or 0 for none*/ -} gif_animation; - -int gif_initialise(struct gif_animation *gif); -int gif_decode_frame(struct gif_animation *gif, unsigned int frame); -void gif_finalise(struct gif_animation *gif); - -#endif |