2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef HEADER_SUPERTUX_VIDEO_SDL_TEXTURE_HPP
18 #define HEADER_SUPERTUX_VIDEO_SDL_TEXTURE_HPP
25 #include "video/color.hpp"
26 #include "video/texture.hpp"
28 class SDLTexture : public Texture
38 static const int HASHED_BITS = 3;
39 static const int CACHE_SIZE = 1 << (HASHED_BITS * 3);
41 static void ref(SDL_Surface *surface)
49 static int hash(const Color &color)
52 ((int) (color.red * ((1 << HASHED_BITS) - 1)) << (HASHED_BITS - 1) * 2) |
53 ((int) (color.green * ((1 << HASHED_BITS) - 1)) << (HASHED_BITS - 1)) |
54 ((int) (color.blue * ((1 << HASHED_BITS) - 1)) << 0);
57 SDL_Surface *data[CACHE_SIZE];
61 memset(data, 0, CACHE_SIZE * sizeof(SDL_Surface *));
64 ColorCache(const ColorCache&);
68 std::for_each(data, data + CACHE_SIZE, SDL_FreeSurface);
71 ColorCache& operator=(const ColorCache &other)
75 std::for_each(other.data, other.data + CACHE_SIZE, ref);
76 std::for_each(data, data + CACHE_SIZE, SDL_FreeSurface);
77 memcpy(data, other.data, CACHE_SIZE * sizeof(SDL_Surface *));
82 SDL_Surface *&operator [] (const Color &color)
84 return data[hash(color)];
87 //typedef std::map<Color, SDL_Surface *> ColorCache;
88 ColorCache cache[NUM_EFFECTS];
92 SDLTexture(SDL_Surface* sdlsurface);
93 virtual ~SDLTexture();
96 SDL_Surface *get_transform(const Color &color, DrawingEffect effect);
99 SDL_Texture *get_texture() const
104 unsigned int get_texture_width() const
109 unsigned int get_texture_height() const
114 unsigned int get_image_width() const
119 unsigned int get_image_height() const
125 SDLTexture(const SDLTexture&);
126 SDLTexture& operator=(const SDLTexture&);