2 * 2ooM: The Master of Orion II Reverse Engineering Project
3 * Graphical tool for inspecting LBX archives.
4 * Copyright © 2010, 2014 Nick Bowler
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (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, see <http://www.gnu.org/licenses/>.
34 static GtkTreeStore *archives;
35 static GtkBuilder *builder;
37 static GtkWidget *canvas;
39 static cairo_surface_t *framebuf;
40 static cairo_pattern_t *bg_pattern;
41 static bool bg_stipple;
43 static struct lbx_image *image;
44 static struct lbx_colour palette[256];
46 /* We support stacking up to three palettes, with each superseding the last. */
47 static struct lbx_colour palette_external[256];
48 static struct lbx_colour palette_internal[256];
49 static struct lbx_colour palette_override[256];
51 static void refresh_palette(void)
53 memcpy(palette, palette_external, sizeof palette);
54 lbxgui_stack_palette(palette, palette_internal);
55 lbxgui_stack_palette(palette, palette_override);
58 lbxgui_render_restart(framebuf);
61 void play_toggled(GtkToggleButton *button, gpointer data)
63 gboolean active = gtk_toggle_button_get_active(button);
66 if (active && !image) {
67 gtk_toggle_button_set_active(button, FALSE);
71 spin = GTK_WIDGET(gtk_builder_get_object(builder, "framespin"));
72 gtk_widget_set_sensitive(spin, !active);
75 gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), 0);
79 void set_frame(GtkSpinButton *spin, gpointer data)
81 unsigned frame = gtk_spin_button_get_value_as_int(spin);
84 lbxgui_render_argb(framebuf, image, frame, palette);
85 gdk_window_invalidate_rect(canvas->window, NULL, FALSE);
88 static void redraw_image(void)
94 spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
95 set_frame(spin, NULL);
98 static void tick(void *p, double delta)
100 static double elapsed = 0;
101 double seconds_per_frame = 1.0/15;
103 GtkToggleButton *play;
104 unsigned frame, newframe;
109 spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
110 play = GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "playbutton"));
112 frame = gtk_spin_button_get_value_as_int(spin);
113 if (!gtk_toggle_button_get_active(play))
118 while (elapsed > seconds_per_frame) {
119 elapsed -= seconds_per_frame;
121 if (++newframe >= image->frames) {
122 if (image->leadin == image->frames - 1) {
123 gtk_toggle_button_set_active(play, FALSE);
127 newframe = image->leadin;
131 if (frame != newframe)
132 gtk_spin_button_set_value(spin, newframe);
135 static gboolean timeout(gpointer data)
137 static double lasttime = INFINITY;
138 static GTimer *timer;
140 if (isinf(lasttime)) {
141 timer = g_timer_new();
146 double time = g_timer_elapsed(timer, NULL);
148 tick(data, time - lasttime);
155 gboolean canvas_expose(GtkWidget *canvas, GdkEventExpose *event, gpointer data)
159 cr = gdk_cairo_create(canvas->window);
162 cairo_set_source_rgb(cr, 0.6, 0.6, 0.6);
163 gdk_cairo_rectangle(cr, &event->area);
166 cairo_set_source_rgb(cr, 0.3, 0.3, 0.3);
167 gdk_cairo_rectangle(cr, &event->area);
168 cairo_mask(cr, bg_pattern);
170 cairo_set_source_rgb(cr, 0, 0, 0);
171 gdk_cairo_rectangle(cr, &event->area);
175 cairo_set_source_surface(cr, framebuf, 0, 0);
176 gdk_cairo_rectangle(cr, &event->area);
184 static int alloc_framebuffer(struct lbx_image *img)
188 cairo_surface_destroy(framebuf);
189 framebuf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
190 img->width, img->height);
192 spin = GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "framespin"));
193 gtk_spin_button_set_range(spin, 0, img->frames-1);
194 gtk_spin_button_set_value(spin, 0);
196 gtk_widget_set_size_request(canvas, img->width, img->height);
200 static int close_image(void *handle)
202 lbx_file_close(handle);
206 static struct lbx_image *load_lbx_image(struct lbx *archive, unsigned index)
209 struct lbx_image *image;
211 file = lbx_file_open(archive, index);
212 g_return_val_if_fail(file, NULL);
214 image = lbx_img_open(file, &lbx_arch_fops, close_image);
216 lbx_file_close(file);
220 void set_override(GtkComboBox *combo)
225 struct lbx_image *img;
227 memset(palette_override, 0, sizeof palette_override);
228 if (!gtk_combo_box_get_active_iter(combo, &iter))
231 gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
236 img = load_lbx_image(lbx, index);
238 lbx_img_getpalette(img, palette_override);
244 void set_palette(GtkComboBox *combo)
251 memset(palette_external, 0, sizeof palette_external);
252 if (!gtk_combo_box_get_active_iter(combo, &iter))
255 gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
260 f = lbx_file_open(lbx, index);
262 if (lbx_img_loadpalette(f, &lbx_arch_fops, palette_external))
263 memset(palette_external, 0, sizeof palette_external);
270 void set_image(GtkComboBox *combo)
275 struct lbx_image *img;
278 lbx_img_close(image);
282 gtk_widget_set_size_request(canvas, -1, -1);
283 memset(palette_internal, 0, sizeof palette_internal);
284 if (!gtk_combo_box_get_active_iter(combo, &iter))
287 gtk_tree_model_get(GTK_TREE_MODEL(archives), &iter,
292 img = load_lbx_image(lbx, index);
294 if (lbx_img_getpalette(img, palette_internal) == -1) {
299 alloc_framebuffer(img);
306 void set_background(GtkCheckMenuItem *item, gpointer data)
308 bg_stipple = gtk_check_menu_item_get_active(item);
312 void show_about(GtkWidget *widget)
314 GtkWindow *parent = GTK_WINDOW(gtk_widget_get_toplevel(widget));
316 gtk_show_about_dialog(parent,
317 "name", g_get_application_name(),
318 "version", PACKAGE_VERSION,
319 "copyright", "Copyright \xc2\xa9 2010 Nick Bowler",
320 "website", "http://toom.sourceforge.net/",
324 static int load_archive(const char *path)
327 GtkTreeIter iter1, iter2;
331 lbx = lbx_fopen(path);
335 basename = g_path_get_basename(path);
336 gtk_tree_store_append(archives, &iter1, NULL);
337 gtk_tree_store_set(archives, &iter1,
343 for (unsigned i = 0; i < lbx->nfiles; i++) {
344 struct lbx_statbuf stat;
346 lbx_file_stat(lbx, i, &stat);
347 gtk_tree_store_append(archives, &iter2, &iter1);
348 gtk_tree_store_set(archives, &iter2,
358 static void load_error(const char *name, GtkWindow *window)
362 dialog = gtk_message_dialog_new(window,
366 "Failed to open %s. Decent error messages coming eventually.",
368 gtk_dialog_run(GTK_DIALOG(dialog));
369 gtk_widget_destroy(dialog);
372 void open_archive(GtkWidget *widget)
374 GtkWindow *window = GTK_WINDOW(gtk_widget_get_toplevel(widget));
375 GtkFileFilter *lbxfilter, *allfilter;
376 GtkFileChooser *chooser;
379 chooser = GTK_FILE_CHOOSER(gtk_file_chooser_dialog_new(
382 GTK_FILE_CHOOSER_ACTION_OPEN,
383 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
384 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
387 lbxfilter = gtk_file_filter_new();
388 gtk_file_filter_set_name(lbxfilter, "LBX Archives (*.lbx)");
389 gtk_file_filter_add_pattern(lbxfilter, "*.lbx");
390 gtk_file_filter_add_pattern(lbxfilter, "*.LBX");
392 allfilter = gtk_file_filter_new();
393 gtk_file_filter_set_name(allfilter, "All Files");
394 gtk_file_filter_add_pattern(allfilter, "*");
396 gtk_file_chooser_add_filter(chooser, lbxfilter);
397 gtk_file_chooser_add_filter(chooser, allfilter);
399 while (gtk_dialog_run(GTK_DIALOG(chooser)) == GTK_RESPONSE_ACCEPT) {
400 gchar *name = gtk_file_chooser_get_filename(chooser);
402 if (load_archive(name) == 0) {
407 load_error(name, GTK_WINDOW(chooser));
411 gtk_widget_destroy(GTK_WIDGET(chooser));
414 static void clear_combobox(GtkEntry *entry, GtkEntryIconPosition pos,
415 GdkEvent *event, gpointer data)
417 GtkComboBox *combo = data;
419 gtk_entry_set_text(entry, "");
420 gtk_combo_box_set_active(combo, -1);
424 static void init_combobox(GtkBuilder *builder, const char *name)
429 combo = GTK_COMBO_BOX(gtk_builder_get_object(builder, name));
430 gtk_combo_box_set_model(combo, GTK_TREE_MODEL(archives));
431 gtk_combo_box_entry_set_text_column(GTK_COMBO_BOX_ENTRY(combo), 0);
433 entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo)));
434 g_signal_connect(G_OBJECT(entry), "icon-press",
435 G_CALLBACK(clear_combobox), combo);
436 gtk_entry_set_icon_from_stock(entry, GTK_ENTRY_ICON_SECONDARY,
440 static void init_interface(void)
442 GtkTreeViewColumn *column;
443 GtkCellRenderer *renderer;
446 renderer = gtk_cell_renderer_text_new();
447 column = gtk_tree_view_column_new();
448 gtk_tree_view_column_pack_start(column, renderer, TRUE);
449 gtk_tree_view_column_add_attribute(column, renderer, "text", 0);
451 tree = GTK_TREE_VIEW(gtk_builder_get_object(builder, "treeview"));
452 gtk_tree_view_set_model(tree, GTK_TREE_MODEL(archives));
453 gtk_tree_view_append_column(tree, column);
455 init_combobox(builder, "palettechooser");
456 init_combobox(builder, "imagechooser");
457 init_combobox(builder, "overchooser");
461 * Reverse the bits in each byte of a 32-bit word.
463 static guint32 reverse4b(guint32 v)
465 v = ((v >> 1) & 0x55555555) | ((v & 0x55555555) << 1);
466 v = ((v >> 2) & 0x33333333) | ((v & 0x33333333) << 2);
467 v = ((v >> 4) & 0x0f0f0f0f) | ((v & 0x0f0f0f0f) << 4);
471 static cairo_surface_t *
472 xbm_to_cairo(const void *xbmdata, int width, int height)
474 const unsigned char *data = xbmdata;
475 unsigned char *sdata;
479 s = cairo_image_surface_create(CAIRO_FORMAT_A1, width, height);
480 if (cairo_surface_status(s) != CAIRO_STATUS_SUCCESS)
483 sdata = cairo_image_surface_get_data(s);
484 stride = cairo_image_surface_get_stride(s);
485 assert(stride % 4 == 0);
486 width = (width + 7) / 8;
488 cairo_surface_flush(s);
489 for (int y = 0; y < height; y++) {
491 * Cairo is nuts. The mapping of bits to pixels in the A1
492 * format actually depends on the host *byte* ordering, so
493 * we actually need these two separate cases.
495 if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
496 /* Easy, XBM and Cairo match in this case */
497 memcpy(sdata, data, width);
499 /* No such luck, we have to convert manually */
500 for (int x = 0; x < width; x += 4) {
503 memcpy(&word, data+x, MIN(4, width-x));
504 word = reverse4b(word);
505 memcpy(sdata+x, &word, 4);
512 cairo_surface_mark_dirty(s);
517 static void init_background(GdkDrawable *drawable)
522 bg = xbm_to_cairo(bg_bits, bg_width, bg_height);
523 bg_pattern = cairo_pattern_create_for_surface(bg);
524 cairo_pattern_set_extend(bg_pattern, CAIRO_EXTEND_REPEAT);
525 cairo_surface_destroy(bg);
527 check = GTK_WIDGET(gtk_builder_get_object(builder, "menu-background"));
528 gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(check), TRUE);
529 set_background(GTK_CHECK_MENU_ITEM(check), NULL);
532 int main(int argc, char **argv)
534 extern char lbxgui_glade[];
538 if (!gtk_init_with_args(&argc, &argv, NULL, NULL, NULL, &err)) {
539 fprintf(stderr, "%s\n", err->message);
543 archives = gtk_tree_store_new(3,
544 G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_UINT);
546 load_archive(*argv++);
548 builder = gtk_builder_new();
549 if (!gtk_builder_add_from_string(builder, lbxgui_glade, -1, &err)) {
550 fprintf(stderr, "%s\n", err->message);
554 window = GTK_WIDGET(gtk_builder_get_object(builder, "mainwindow"));
555 canvas = GTK_WIDGET(gtk_builder_get_object(builder, "canvas"));
558 gtk_builder_connect_signals(builder, window);
560 g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 10, timeout, NULL, NULL);
561 gtk_widget_show_all(window);
563 init_background(canvas->window);