1/* APNG Disassembler 2.9 
2 * 
3 * Deconstructs APNG files into individual frames. 
4 * 
5 * http://apngdis.sourceforge.net 
6 * 
7 * Copyright (c) 2010-2017 Max Stepin 
8 * maxst at users.sourceforge.net 
9 * 
10 * zlib license 
11 * ------------ 
12 * 
13 * This software is provided 'as-is', without any express or implied 
14 * warranty. In no event will the authors be held liable for any damages 
15 * arising from the use of this software. 
16 * 
17 * Permission is granted to anyone to use this software for any purpose, 
18 * including commercial applications, and to alter it and redistribute it 
19 * freely, subject to the following restrictions: 
20 * 
21 * 1. The origin of this software must not be misrepresented; you must not 
22 * claim that you wrote the original software. If you use this software 
23 * in a product, an acknowledgment in the product documentation would be 
24 * appreciated but is not required. 
25 * 2. Altered source versions must be plainly marked as such, and must not be 
26 * misrepresented as being the original software. 
27 * 3. This notice may not be removed or altered from any source distribution. 
28 * 
29 */ 
30////////////////////////////////////////////////////////////////////////////////////// 
31// This is a modified version of apngdis // 
32// // 
33// The modifications were made by Tristan Grimmer and are primarily to remove // 
34// main so the functionality can be called directly from other source files. // 
35// A header file has been created to allow external access. // 
36// // 
37// All modifications should be considered to be covered by the zlib license above. // 
38////////////////////////////////////////////////////////////////////////////////////// 
39 
40#pragma once 
41#include <stdio.h> 
42#include <stdlib.h> 
43#include <string.h> 
44#include <vector> 
45 
46// @tacent Added version string. Value taken from printf in main(). 
47#define APNGDIS_VERSION_STRING "2.9" 
48 
49// @tacent Put it all in a namespace. 
50namespace APngDis 
51{ 
52 
53 
54struct Image 
55{ 
56 typedef unsigned char * ROW; 
57 unsigned int w, h, bpp, delay_num, delay_den; 
58 unsigned char * p; 
59 ROW * rows; 
60 Image() : w(0), h(0), bpp(0), delay_num(1), delay_den(10), p(0), rows(0) { } 
61 ~Image() { } 
62 void init(unsigned int w1, unsigned int h1, unsigned int bpp1) 
63 { 
64 w = w1; h = h1; bpp = bpp1; 
65 int rowbytes = w * bpp; 
66 rows = new ROW[h]; 
67 rows[0] = p = new unsigned char[h * rowbytes]; 
68 for (unsigned int j=1; j<h; j++) 
69 rows[j] = rows[j-1] + rowbytes; 
70 } 
71 void free() { delete[] rows; delete[] p; } 
72}; 
73 
74// Returns -1 on error. 
75int load_apng(const char * szIn, std::vector<Image>& img); 
76 
77 
78} 
79