1 /* ResidualVM - A 3D game interpreter
2  *
3  * ResidualVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the AUTHORS
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef STARK_GFX_TEXTURE_H
24 #define STARK_GFX_TEXTURE_H
25 
26 #include "common/hash-str.h"
27 
28 namespace Graphics {
29 	struct Surface;
30 }
31 
32 namespace Stark {
33 namespace Gfx {
34 
35 /**
36  * An abstract texture
37  */
38 class Texture {
39 public:
40 	Texture();
41 	virtual ~Texture();
42 
43 	/** Make the texture active */
44 	virtual void bind() const = 0;
45 
46 	/** Define or update the texture pixel data */
47 	virtual void update(const Graphics::Surface *surface, const byte *palette = nullptr) = 0;
48 
49 	/**
50 	 * Define the total number of levels of details
51 	 *
52 	 * Must be called before adding levels
53 	 */
54 	virtual void setLevelCount(uint32 count) = 0;
55 
56 	/**
57 	 * Add a detail level to the texture
58 	 */
59 	virtual void addLevel(uint32 level, const Graphics::Surface *surface, const byte *palette = nullptr) = 0;
60 
61 	/** Get the texture width */
width()62 	uint32 width() const { return _width; }
63 
64 	/** Get teh texture height */
height()65 	uint32 height() const { return _height; }
66 
67 protected:
68 	uint32 _width;
69 	uint32 _height;
70 };
71 
72 /**
73  * A collection of textures referenced by their names
74  */
75 class TextureSet {
76 public:
77 	TextureSet();
78 	~TextureSet();
79 
80 	/**
81 	 * Add a texture to the set
82 	 */
83 	void addTexture(const Common::String &name, Texture *texture);
84 
85 	/**
86 	 * Retrieve a texture from the set
87 	 */
88 	const Texture *getTexture(const Common::String &name) const;
89 
90 private:
91 	typedef Common::HashMap<Common::String, Texture *> TextureMap;
92 
93 	TextureMap _texMap;
94 };
95 
96 } // End of namespace Gfx
97 } // End of namespace Stark
98 
99 #endif // STARK_GFX_TEXTURE_H
100