mirror of
https://github.com/VincentWei/MiniGUI.git
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124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
/*
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* This file is part of MiniGUI, a mature cross-platform windowing
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* and Graphics User Interface (GUI) support system for embedded systems
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* and smart IoT devices.
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*
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* Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
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* Copyright (C) 1998~2002, WEI Yongming
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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* Or,
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*
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* As this program is a library, any link to this program must follow
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* GNU General Public License version 3 (GPLv3). If you cannot accept
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* GPLv3, you need to be licensed from FMSoft.
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*
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* If you have got a commercial license of this program, please use it
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* under the terms and conditions of the commercial license.
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*
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* For more information about the commercial license, please refer to
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* <http://www.minigui.com/en/about/licensing-policy/>.
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*/
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// $Id: gif.h 241 2000-01-08 09:10:27Z weiym $
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//
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#ifndef _GIF_H_
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#define _GIF_H_
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#define GIF_GLOBAL_SIZE 13
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#define GIF_PALETTE_SIZE 768
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#define GIF_LOCAL_SIZE 9
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typedef struct tagGlobal {
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char magic_word[3];
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char version[3];
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short width;
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short height;
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unsigned char flag;
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unsigned char bg_color;
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unsigned char aspect;
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}gif_global_t;
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typedef struct tagPalette {
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unsigned char palette[768];
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}gif_palette_t;
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typedef struct tagLocal {
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short x;
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short y;
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short width;
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short height;
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unsigned char flag;
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}gif_local_t;
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typedef struct tagCode {
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char first;
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char last;
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int prefix;
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}gif_code_t;
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typedef struct tagGifInfo {
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gif_global_t gif_global;
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gif_local_t gif_local;
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gif_palette_t gif_global_palette;
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gif_palette_t gif_local_palette;
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int gif_buffer_length;
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unsigned char* gif_buffer;
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unsigned char* gif_cur_buffer;
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gif_code_t code_table[4096];
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unsigned char code_string[1024];
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int code_limit;
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int b_local_palette;
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int b_interlaced;
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int request_bits;
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int first_ch;
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int pass;
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int code;
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int prefix;
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int free_code;
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int EOI,CLEAR;
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int remain_bytes;
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int remain_bits;
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char unsigned data;
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unsigned char* gif_surface;
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int gif_x;
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int gif_y;
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}gif_info_t;
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extern int unpack_gif(gif_info_t*);
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extern int unpack_local_image(gif_info_t*);
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extern int unpack_image_data(gif_info_t*);
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extern void clear_code_table(gif_info_t*,int);
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extern void insert_code_table(gif_info_t*,int,int);
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extern void output_code(gif_info_t*,int);
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extern void output_pixel(gif_info_t*,unsigned char);
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extern int get_code(gif_info_t*);
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extern void draw_pixel(gif_info_t*,int,int,int);
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extern void destroy_gif(gif_info_t*);
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#endif
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