// ImageImlib2.cc for FbTk - Fluxbox ToolKit // Copyright (c) 2004 - 2006 Mathias Gumz <akira at fluxbox dot org> // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. #include "ImageImlib2.hh" #include "App.hh" #include "PixmapWithMask.hh" #include <Imlib2.h> #include <map> #include <iostream> namespace { typedef std::map<int, Imlib_Context> ScreenImlibContextContainer; typedef ScreenImlibContextContainer::iterator ScreenImlibContext; ScreenImlibContextContainer contexts; } // anon namespace namespace FbTk { ImageImlib2::ImageImlib2() { // lets have a 2mb cache inside imlib, holds // uncompressed images imlib_set_cache_size(2048 * 1024); // TODO: this are the potential candidates, // choose only sane ones. open for discussion static const char* format_list[] = { "PNG", // pngloader "JPEG", "JPG", "JFI", "JFIF", // jpegloader // "TIFF", "TIF", // tiffloader "PNM", "PPM", "PGM", "PBM", "PAM", // pnmloader // "TGA", // tgaloader // "IFF", "ILBM", "LBM", // lbmloader // "GIF", // gifloader // "ARGB", "AGR", // argbloader // "BMP", // bmploader // "BZ2", // bzloader // "GZ", // gzloader NULL }; const char** format = NULL; for(format = format_list; *format != NULL; format++) { Image::registerType(*format, *this); } } ImageImlib2::~ImageImlib2() { ScreenImlibContext it = contexts.begin(); ScreenImlibContext it_end = contexts.end(); for (; it != it_end; it++) { imlib_context_free(it->second); } contexts.clear(); } PixmapWithMask *ImageImlib2::load(const std::string &filename, int screen_num) const { Display *dpy = FbTk::App::instance()->display(); // init imlib2 if needed, the settings for each screen may differ ScreenImlibContext screen_context = contexts.find(screen_num); if (screen_context == contexts.end()) { Imlib_Context new_context = imlib_context_new(); imlib_context_push(new_context); imlib_context_set_display(dpy); imlib_context_set_visual(DefaultVisual(dpy, screen_num)); imlib_context_set_colormap(DefaultColormap(dpy, screen_num)); imlib_context_set_drawable(RootWindow(dpy, screen_num)); imlib_context_pop(); contexts[screen_num] = new_context; screen_context = contexts.find(screen_num); } if (screen_context == contexts.end()) { #ifdef DEBUG std::cerr << "ImageImlib2::load: error, couldnt find a valid Imlib_Context.\n"; #endif // DEBUG return 0; } // now load the stuff Imlib_Context context = screen_context->second; imlib_context_push(context); Imlib_Image image = 0; Imlib_Load_Error err; // TODO: contact imlib2-authors: // // we use this error-loading + get_data_for_reading_only because // it doesnt memleak imlib2, // // imlib_load_image_immediately // imlib_load_image_without_cache // imlib_load_image_immediately_without_cache // // seem to memleak or trouble imlib2 when something fails. the // imlib_load_image_with_error_return checks for existence etc before // actually doing anything, i ll analyze this further (mathias) image = imlib_load_image_with_error_return(filename.c_str(), &err); if (image) { // loading was ok imlib_context_set_image(image); Pixmap pm = 0, mask = 0; // force loading/creation of the image imlib_image_get_data_for_reading_only(); // and render it to the pixmaps imlib_render_pixmaps_for_whole_image(&pm, &mask); // pm and mask belong to imlib2, // so we have to copy them PixmapWithMask* result = new PixmapWithMask(); result->pixmap().copy(pm, 0, 0); result->mask().copy(mask, 0, 0); // mark pm and mask as freeable in imlib imlib_free_image_and_decache(); imlib_free_pixmap_and_mask(pm); imlib_context_pop(); return result; } else // loading failure imlib_context_pop(); return 0; } } // end namespace FbTk