4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include "texture_manager.hpp"
26 #include <SDL_image.h>
30 #include "physfs/physfs_sdl.hpp"
31 #include "gl_texture.hpp"
32 #include "sdl_texture.hpp"
34 #include "gameconfig.hpp"
35 #include "file_system.hpp"
38 TextureManager* texture_manager = NULL;
40 TextureManager::TextureManager()
44 TextureManager::~TextureManager()
46 for(ImageTextures::iterator i = image_textures.begin();
47 i != image_textures.end(); ++i) {
50 log_warning << "Texture '" << i->first << "' not freed" << std::endl;
56 TextureManager::get(const std::string& _filename)
58 std::string filename = FileSystem::normalize(_filename);
59 ImageTextures::iterator i = image_textures.find(filename);
61 Texture* texture = NULL;
62 if(i != image_textures.end())
66 texture = create_image_texture(filename);
67 image_textures[filename] = texture;
74 TextureManager::release(Texture* texture)
76 image_textures.erase(texture->get_filename());
82 TextureManager::register_texture(GL::Texture* texture)
84 textures.insert(texture);
88 TextureManager::remove_texture(GL::Texture* texture)
90 textures.erase(texture);
95 TextureManager::create_image_texture(const std::string& filename)
97 SDL_Surface* image = IMG_Load_RW(get_physfs_SDLRWops(filename), 1);
99 std::ostringstream msg;
100 msg << "Couldn't load image '" << filename << "' :" << SDL_GetError();
101 throw std::runtime_error(msg.str());
107 if(config->video == "opengl")
109 result = new GL::Texture(image);
114 result = new SDL::Texture(image);
116 result->set_filename(filename);
119 SDL_FreeSurface(image);
123 SDL_FreeSurface(image);
129 TextureManager::save_textures()
131 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
132 glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0);
133 glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
134 glPixelStorei(GL_PACK_SKIP_ROWS, 0);
135 glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
136 glPixelStorei(GL_PACK_ALIGNMENT, 1);
137 for(Textures::iterator i = textures.begin(); i != textures.end(); ++i) {
140 for(ImageTextures::iterator i = image_textures.begin();
141 i != image_textures.end(); ++i) {
142 save_texture(dynamic_cast<GL::Texture *>(i->second));
147 TextureManager::save_texture(GL::Texture* texture)
149 SavedTexture saved_texture;
150 saved_texture.texture = texture;
151 glBindTexture(GL_TEXTURE_2D, texture->get_handle());
152 glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH,
153 &saved_texture.width);
154 glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT,
155 &saved_texture.height);
156 glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BORDER,
157 &saved_texture.border);
158 glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
159 &saved_texture.min_filter);
160 glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
161 &saved_texture.mag_filter);
162 glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
163 &saved_texture.wrap_s);
164 glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
165 &saved_texture.wrap_t);
167 size_t pixelssize = saved_texture.width * saved_texture.height * 4;
168 saved_texture.pixels = new char[pixelssize];
170 glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE,
171 saved_texture.pixels);
173 saved_textures.push_back(saved_texture);
175 glDeleteTextures(1, &(texture->get_handle()));
176 texture->set_handle(0);
178 assert_gl("retrieving texture for save");
182 TextureManager::reload_textures()
184 glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
185 glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
186 glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
187 glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
188 glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0);
189 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
191 for(std::vector<SavedTexture>::iterator i = saved_textures.begin();
192 i != saved_textures.end(); ++i) {
193 SavedTexture& saved_texture = *i;
196 glGenTextures(1, &handle);
197 assert_gl("creating texture handle");
199 glBindTexture(GL_TEXTURE_2D, handle);
200 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
201 saved_texture.width, saved_texture.height,
202 saved_texture.border, GL_RGBA,
203 GL_UNSIGNED_BYTE, saved_texture.pixels);
204 delete[] saved_texture.pixels;
205 assert_gl("uploading texture pixel data");
207 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
208 saved_texture.min_filter);
209 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
210 saved_texture.mag_filter);
211 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
212 saved_texture.wrap_s);
213 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
214 saved_texture.wrap_t);
216 assert_gl("setting texture_params");
217 saved_texture.texture->set_handle(handle);
220 saved_textures.clear();