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// 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 {
class ScreenImlibContextContainer : public std::map<int, Imlib_Context> {
public:
~ScreenImlibContextContainer() {
std::map<int, Imlib_Context>::iterator it = this->begin();
std::map<int, Imlib_Context>::iterator it_end = this->end();
for (; it != it_end; it++) {
imlib_context_free(it->second);
}
imlib_flush_loaders();
}
};
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);
}
}
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
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