aboutsummaryrefslogtreecommitdiff
path: root/engines/sword25/gfx/image/pngloader.h
blob: 0be88ca8e1cc5a158e4fa44860ba2ed94670f634 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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; either version 2
 * of the License, or (at your option) any later version.

 * This program 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

/* 
 * This code is based on Broken Sword 2.5 engine
 *
 * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
 *
 * Licensed under GNU GPL v2
 *
 */

/*
	BS_PNGLoader
	------------
	BS_ImageLoader-Klasse zum Laden von PNG-Dateien

	Autor: Malte Thiesen
*/

#ifndef SWORD25_PNGLOADER2_H
#define SWORD25_PNGLOADER2_H

// Includes
#include "sword25/kernel/common.h"
#include "sword25/gfx/image/imageloader.h"

// Klassendefinition
class BS_PNGLoader : public BS_ImageLoader
{
public:
	static BS_ImageLoader* CreateInstance() 
	{ 
		#include "sword25/kernel/memlog_off.h"
		return (BS_ImageLoader*) new BS_PNGLoader();
		#include "sword25/kernel/memlog_on.h"
	}

	// Alle virtuellen Methoden von BS_ImageLoader sind hier als static-Methode implementiert, damit sie von BS_B25SLoader aufgerufen werden k�nnen.
	// Die virtuellen Methoden rufen diese Methoden auf.
	static bool DoIsCorrectImageFormat(const char * FileDataPtr, unsigned int FileSize);
	static bool	DoDecodeImage(const char * FileDataPtr, unsigned int FileSize,  BS_GraphicEngine::COLOR_FORMATS ColorFormat, char * & UncompressedDataPtr,
							  int & Width, int & Height, int & Pitch);
	static bool DoImageProperties(const char * FileDataPtr, unsigned int FileSize, BS_GraphicEngine::COLOR_FORMATS & ColorFormat, int & Width, int & Height);

protected:
	BS_PNGLoader();
	bool DecodeImage(const char * pFileData, unsigned int FileSize, 
					 BS_GraphicEngine::COLOR_FORMATS ColorFormat,
					 char * & pUncompressedData,
					 int & Width, int & Height,
					 int & Pitch);
	bool IsCorrectImageFormat(const char * FileDataPtr, unsigned int FileSize);
	bool ImageProperties(const char * FileDatePtr, unsigned int FileSize, BS_GraphicEngine::COLOR_FORMATS & ColorFormat, int & Width, int & Height);
};

#endif