/* Copyright (C) 2011, 2012 Matthias Vogelgesang (Karlsruhe Institute of Technology) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA */ #include #include #include #include #include #include #include "config.h" #include "uca-camera.h" #include "uca-plugin-manager.h" #include "uca-ring-buffer.h" #include "egg-property-tree-view.h" #include "egg-histogram-view.h" typedef enum { IDLE, RUNNING, RECORDING } State; typedef struct { UcaCamera *camera; GtkWidget *main_window; GdkPixbuf *pixbuf; GdkPixbuf *subpixbuf; GtkWidget *image; GtkWidget *start_button; GtkWidget *stop_button; GtkWidget *record_button; GtkWidget *download_button; GtkWidget *zoom_in_button; GtkWidget *zoom_out_button; GtkWidget *zoom_normal_button; GtkWidget *rect_color_button; GtkWidget *acquisition_expander; GtkWidget *properties_expander; GtkWidget *colormap_box; GtkWidget *event_box; GtkLabel *mean_label; GtkLabel *sigma_label; GtkLabel *max_label; GtkLabel *min_label; GtkLabel *x_label; GtkLabel *y_label; GtkLabel *val_label; GtkLabel *roix_label; GtkLabel *roiy_label; GtkLabel *roiw_label; GtkLabel *roih_label; GtkDialog *download_dialog; GtkProgressBar *download_progressbar; GtkAdjustment *download_adjustment; GtkAdjustment *count; GtkAdjustment *hadjustment; GtkAdjustment *vadjustment; GtkAdjustment *x_adjustment; GtkAdjustment *y_adjustment; GtkAdjustment *width_adjustment; GtkAdjustment *height_adjustment; GtkWidget *histogram_view; GtkToggleButton *histogram_button; GtkToggleButton *log_button; GtkAdjustment *frame_slider; UcaRingBuffer *buffer; guchar *pixels; gint display_width, display_height; gint colormap; gdouble zoom_factor; gdouble zoom_before; State state; guint n_recorded; gboolean data_in_camram; gint timestamp; gint width, height; gint pixel_size; gint ev_x, ev_y; gint display_x, display_y; gint tmp_fromx, tmp_fromy; gint from_x, from_y; gint to_x, to_y; gint adj_width, adj_height; gint rect_x, rect_y; gint rect_evx, rect_evy; cairo_t *cr; gdouble red, green, blue; } ThreadData; static UcaPluginManager *plugin_manager; static gsize mem_size = 2048; static void update_pixbuf (ThreadData *data); static void up_and_down_scale (ThreadData *data, gpointer buffer) { gdouble min; gdouble max; gdouble factor; gdouble dval = 0.0; gboolean do_log; guint8 *output; gint i = 0; gint zoom; gint stride; gint offset = 0; gint start_wval; gint start_hval; egg_histogram_get_range (EGG_HISTOGRAM_VIEW (data->histogram_view), &min, &max); factor = 255.0 / (max - min); output = data->pixels; zoom = (gint) data->zoom_factor; stride = (gint) 1 / data->zoom_factor; gint page_width = gtk_adjustment_get_page_size (GTK_ADJUSTMENT (data->hadjustment)); gint page_height = gtk_adjustment_get_page_size (GTK_ADJUSTMENT (data->vadjustment)); do_log = gtk_toggle_button_get_active (data->log_button); if (data->state == RUNNING) { if ((data->adj_width > 0) && (data->adj_height > 0)) { start_wval = data->from_x; start_hval = data->from_y; page_width = data->to_x; page_height = data->to_y; } else { start_wval = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->hadjustment)); start_hval = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->vadjustment)); page_width += start_wval; page_height += start_hval; } } else { start_wval = 0; start_hval = 0; page_width = data->display_width; page_height = data->display_height; } if (data->pixel_size == 1) { guint8 *input = (guint8 *) buffer; for (gint y = 0; y < data->display_height; y++) { if (zoom <= 1) { offset = y * stride * data->width; } for (gint x = 0; x < data->display_width; x++) { if (zoom <= 1) offset += stride; else offset = ((gint) (y / zoom) * data->width) + ((gint) (x / zoom)); if (y >= start_hval && y < page_height) { if (x >= start_wval && x < page_width) { if (do_log) dval = log ((input[offset] - min) * factor); else dval = (input[offset] - min) * factor; } } guchar val = (guchar) CLAMP(dval, 0.0, 255.0); if (data->colormap == 1) { output[i++] = val; output[i++] = val; output[i++] = val; } else { val = (float) val; float red = 0; float green = 0; float blue = 0; if (val == 255) { red = 255; green = 255; blue = 255; } else if (val == 0) { } else if (val <= 31.875) { blue = 255 - 4 * (31.875 - val); } else if (val <= 95.625) { green = 255 - 4 * (95.625 - val); blue = 255; } else if (val <= 159.375) { red = 255 - 4 * (159.375 - val); green = 255; blue = 255 + 4 * (95.625 - val); } else if (val <= 223.125) { red = 255; green = 255 + 4 * (159.375 - val); } else { red = 255 + 4 * (223.125 - val); } output[i++] = (guchar) red; output[i++] = (guchar) green; output[i++] = (guchar) blue; } } } } else if (data->pixel_size == 2) { guint16 *input = (guint16 *) buffer; for (gint y = 0; y < data->display_height; y++) { if (zoom <= 1) { offset = y * stride * data->width; } for (gint x = 0; x < data->display_width; x++) { if (zoom <= 1) offset += stride; else offset = ((gint) (y / zoom) * data->width) + ((gint) (x / zoom)); if (y >= start_hval && y < page_height) { if (x >= start_wval && x < page_width) { if (do_log) dval = log ((input[offset] - min) * factor); else dval = (input[offset] - min) * factor; } } guchar val = (guchar) CLAMP(dval, 0.0, 255.0); if (data->colormap == 1) { output[i++] = val; output[i++] = val; output[i++] = val; } else { val = (float) val; float red = 0; float green = 0; float blue = 0; if (val == 255) { red = 65535; green = 65535; blue = 65535; } else if (val == 0) { } else if (val <= 31.875) { blue = (255 - 4 * (31.875 - val)) * 257; } else if (val <= 95.625) { green = (255 - 4 * (95.625 - val)) * 257; blue = 65535; } else if (val <= 159.375) { red = (255 - 4 * (159.375 - val)) * 257; green = 65535; blue = (255 + 4 * (95.625 - val)) * 257; } else if (val <= 223.125) { red = 65535; green = (255 + 4 * (159.375 - val)) * 257; } else { red = (255 + 4 * (223.125 - val)) * 257; } output[i++] = (guchar) red; output[i++] = (guchar) green; output[i++] = (guchar) blue; } } } } } static void get_statistics (ThreadData *data, gdouble *mean, gdouble *sigma, guint *_max, guint *_min) { gdouble sum = 0.0; gdouble squared_sum = 0.0; guint min = G_MAXUINT; guint max = 0; guint n = data->width * data->height; if (data->pixel_size == 1) { guint8 *input = (guint8 *) uca_ring_buffer_peek_pointer (data->buffer); for (gint i = 0; i < n; i++) { guint8 val = input[i]; if (val > max) max = val; if (val < min) min = val; sum += val; squared_sum += val * val; } } else { guint16 *input = (guint16 *) uca_ring_buffer_peek_pointer (data->buffer); for (gint i = 0; i < n; i++) { guint16 val = input[i]; if (val > max) max = val; if (val < min) min = val; sum += val; squared_sum += val * val; } } if (gtk_toggle_button_get_active (data->log_button)) { *mean = log (sum/n); *sigma = log (sqrt((squared_sum - sum*sum/n) / (n - 1))); } else { *mean = sum / n; *sigma = sqrt ((squared_sum - sum*sum/n) / (n - 1)); } *_min = min; *_max = max; } static void on_motion_notify (GtkWidget *event_box, GdkEventMotion *event, ThreadData *data) { gint page_width = gtk_adjustment_get_page_size(GTK_ADJUSTMENT(data->hadjustment)); gint page_height = gtk_adjustment_get_page_size(GTK_ADJUSTMENT(data->vadjustment)); gint start_wval = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->hadjustment)); gint start_hval = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->vadjustment)); page_width += start_wval; page_height += start_hval; data->rect_evx = event->x; data->rect_evy = event->y; if ((data->display_width < page_width) && (data->display_height < page_height)) { gint startx = (page_width - data->display_width) / 2; gint starty = (page_height - data->display_height) / 2; data->ev_x = event->x - startx; data->ev_y = event->y - starty; if ((data->adj_width > 0) && (data->adj_height > 0)) { data->display_x = event->x - ((page_width - data->adj_width) / 2) + data->from_x; data->display_y = event->y - ((page_height - data->adj_height) / 2) + data->from_y; } else { data->display_x = data->ev_x; data->display_y = data->ev_y; } } else { data->ev_x = event->x; data->ev_y = event->y; if ((data->adj_width > 0) && (data->adj_height > 0)) { if (data->adj_width >= page_width) data->display_x = event->x + data->from_x; else data->display_x = event->x - ((page_width - data->adj_width) / 2) + data->from_x; if (data->adj_height >= page_height) data->display_y = event->y + data->from_y; else data->display_y = event->y - ((page_height - data->adj_height) / 2) + data->from_y; } else { data->display_x = data->ev_x; data->display_y = data->ev_y; } } if ((data->state != RUNNING) || ((data->ev_x >= 0 && data->ev_y >= 0) && (data->ev_y <= data->display_height && data->ev_x <= data->display_width))) { gpointer *buffer; GString *string; buffer = uca_ring_buffer_peek_pointer (data->buffer); string = g_string_new_len (NULL, 32); gint i = (data->display_y / data->zoom_factor) * data->width + data->display_x / data->zoom_factor; if (data->pixel_size == 1) { guint8 *input = (guint8 *) buffer; guint8 val = input[i]; g_string_printf (string, "val = %i", val); gtk_label_set_text (data->val_label, string->str); } else if (data->pixel_size == 2) { guint16 *input = (guint16 *) buffer; guint16 val = input[i]; g_string_printf (string, "val = %i", val); gtk_label_set_text (data->val_label, string->str); } g_string_printf (string, "x = %i", data->display_x); gtk_label_set_text (data->x_label, string->str); g_string_printf (string, "y = %i", data->display_y); gtk_label_set_text (data->y_label, string->str); g_string_free (string, TRUE); } if (data->cr != NULL) { gdouble dash = 5.0; cairo_set_source_rgb (data->cr, data->red, data->green, data->blue); gint rect_width = data->rect_evx - data->rect_x; gint rect_height = data->rect_evy - data->rect_y; cairo_rectangle (data->cr, data->rect_x, data->rect_y, rect_width, rect_height); cairo_set_dash (data->cr, &dash, 1, 0); cairo_stroke (data->cr); gtk_widget_queue_draw (event_box); } } static void normalize_event_coords (ThreadData *data) { if (data->ev_x < 0) data->ev_x = 0; if (data->ev_y < 0) data->ev_y = 0; if (data->ev_x > data->display_width) data->ev_x = data->display_width; if (data->ev_y > data->display_height) data->ev_y = data->display_height; } static void on_button_press (GtkWidget *event_box, GdkEventMotion *event, ThreadData *data) { data->cr = gdk_cairo_create(event_box->window); data->rect_x = event->x; data->rect_y = event->y; normalize_event_coords (data); gtk_adjustment_set_upper (GTK_ADJUSTMENT (data->x_adjustment), data->display_width); gtk_adjustment_set_upper (GTK_ADJUSTMENT (data->y_adjustment), data->display_height); gtk_adjustment_set_value (GTK_ADJUSTMENT (data->x_adjustment), data->ev_x); gtk_adjustment_set_value (GTK_ADJUSTMENT (data->y_adjustment), data->ev_y); data->tmp_fromx = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->x_adjustment)); data->tmp_fromy = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->y_adjustment)); data->zoom_before = data->zoom_factor; } static void on_button_release (GtkWidget *event_box, GdkEventMotion *event, ThreadData *data) { cairo_destroy (data->cr); data->cr = NULL; normalize_event_coords (data); gtk_adjustment_set_upper (GTK_ADJUSTMENT (data->width_adjustment), data->display_width); gtk_adjustment_set_upper (GTK_ADJUSTMENT (data->height_adjustment), data->display_height); gtk_adjustment_set_value (GTK_ADJUSTMENT (data->width_adjustment), data->ev_x); gtk_adjustment_set_value (GTK_ADJUSTMENT (data->height_adjustment), data->ev_y); gint tmp_tox = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->width_adjustment)); gint tmp_toy = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->height_adjustment)); if (data->tmp_fromx > tmp_tox) { data->from_x = tmp_tox; data->to_x = data->tmp_fromx; } else { data->from_x = data->tmp_fromx; data->to_x = tmp_tox; } if (data->tmp_fromy > tmp_toy) { data->from_y = tmp_toy; data->to_y = data->tmp_fromy; } else { data->from_y = data->tmp_fromy; data->to_y = tmp_toy; } data->adj_width = data->to_x - data->from_x; data->adj_height = data->to_y - data->from_y; update_pixbuf (data); } static gboolean on_expose (GtkWidget *event_box, GdkEventExpose *event, ThreadData *data) { if (data->cr != NULL) { gdouble dash = 5.0; cairo_set_source_rgb (data->cr, data->red, data->green, data->blue); gint rect_width = data->rect_evx - data->rect_x; gint rect_height = data->rect_evy - data->rect_y; cairo_rectangle (data->cr, data->rect_x, data->rect_y, rect_width, rect_height); cairo_set_dash (data->cr, &dash, 1, 0); cairo_stroke (data->cr); gtk_widget_queue_draw (event_box); } return FALSE; } static void update_pixbuf (ThreadData *data) { GString *string; gdouble mean; gdouble sigma; guint min; guint max; guint width; guint height; guint x = 0; guint y = 0; gdk_flush (); if (data->adj_width > 0 && data->adj_height > 0) { data->subpixbuf = gdk_pixbuf_new_subpixbuf (data->pixbuf, data->from_x, data->from_y, data->adj_width, data->adj_height); gtk_image_set_from_pixbuf (GTK_IMAGE (data->image), data->subpixbuf); } else { gtk_image_set_from_pixbuf (GTK_IMAGE (data->image), data->pixbuf); } gtk_widget_queue_draw_area (data->image, 0, 0, data->display_width, data->display_height); if ((data->adj_width > 0) && (data->adj_height > 0)) { x = data->from_x; y = data->from_y; width = data->adj_width; height = data->adj_height; } else { width = data->display_width; height = data->display_height; } get_statistics (data, &mean, &sigma, &max, &min); string = g_string_new_len (NULL, 32); g_string_printf (string, "\u03bc = %3.2f", mean); gtk_label_set_text (data->mean_label, string->str); g_string_printf (string, "\u03c3 = %3.2f", sigma); gtk_label_set_text (data->sigma_label, string->str); g_string_printf (string, "min = %i", min); gtk_label_set_text (data->min_label, string->str); g_string_printf (string, "max = %i", max); gtk_label_set_text (data->max_label, string->str); g_string_printf (string, "x = %i", x); gtk_label_set_text (data->roix_label, string->str); g_string_printf (string, "y = %i", y); gtk_label_set_text (data->roiy_label, string->str); g_string_printf (string, "width = %i", width); gtk_label_set_text (data->roiw_label, string->str); g_string_printf (string, "height = %i", height); gtk_label_set_text (data->roih_label, string->str); g_string_free (string, TRUE); if (gtk_toggle_button_get_active (data->histogram_button)) gtk_widget_queue_draw (data->histogram_view); } static void update_pixbuf_dimensions (ThreadData *data) { if (data->pixbuf != NULL) g_object_unref (data->pixbuf); if (data->adj_width > 0 && data->adj_height > 0) { gdouble zoom = data->zoom_factor / data->zoom_before; data->from_x = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->x_adjustment)) * zoom; data->from_y = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->y_adjustment)) * zoom; data->to_x = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->width_adjustment)) * zoom; data->to_y = gtk_adjustment_get_value (GTK_ADJUSTMENT (data->height_adjustment)) * zoom; gint adj_x = data->from_x; gint adj_y = data->from_y; if (data->from_x > data->to_x) { data->from_x = data->to_x; data->to_x = adj_x; } if (data->from_y > data->to_y) { data->from_y = data->to_y; data->to_y = adj_y; } data->adj_width = data->to_x - data->from_x; data->adj_height = data->to_y - data->from_y; } data->display_width = (gint) data->width * data->zoom_factor; data->display_height = (gint) data->height * data->zoom_factor; data->pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, data->display_width, data->display_height); data->pixels = gdk_pixbuf_get_pixels (data->pixbuf); gtk_image_set_from_pixbuf (GTK_IMAGE (data->image), data->pixbuf); } static void print_and_free_error (GError **error) { g_printerr ("%s\n", (*error)->message); g_error_free (*error); *error = NULL; } static void set_tool_button_state (ThreadData *data) { gtk_widget_set_sensitive (data->start_button, data->state == IDLE); gtk_widget_set_sensitive (data->stop_button, data->state == RUNNING || data->state == RECORDING); gtk_widget_set_sensitive (data->record_button, data->state == IDLE); gtk_widget_set_sensitive (data->download_button, data->data_in_camram); gtk_widget_set_sensitive (data->acquisition_expander, data->state == IDLE); gtk_widget_set_sensitive (data->properties_expander, data->state == IDLE); gtk_widget_set_sensitive (data->colormap_box, data->state == IDLE); } static gpointer preview_frames (void *args) { ThreadData *data = (ThreadData *) args; gint counter = 0; GError *error = NULL; while (data->state == RUNNING) { gpointer *buffer; buffer = uca_ring_buffer_peek_pointer (data->buffer); uca_camera_grab (data->camera, buffer, &error); if (error != NULL) { print_and_free_error (&error); continue; } up_and_down_scale (data, buffer); gdk_threads_enter (); update_pixbuf (data); egg_histogram_view_update (EGG_HISTOGRAM_VIEW (data->histogram_view), buffer); if ((data->ev_x >= 0) && (data->ev_y >= 0) && (data->ev_y <= data->display_height) && (data->ev_x <= data->display_width)) { GString *string; string = g_string_new_len (NULL, 32); gint i = (data->display_y / data->zoom_factor) * data->width + data->display_x / data->zoom_factor; if (data->pixel_size == 1) { guint8 *input = (guint8 *) buffer; guint8 val = input[i]; g_string_printf (string, "val = %i", val); gtk_label_set_text (data->val_label, string->str); } else if (data->pixel_size == 2) { guint16 *input = (guint16 *) buffer; guint16 val = input[i]; g_string_printf (string, "val = %i", val); gtk_label_set_text (data->val_label, string->str); } g_string_printf (string, "x = %i", data->display_x); gtk_label_set_text (data->x_label, string->str); g_string_printf (string, "y = %i", data->display_y); gtk_label_set_text (data->y_label, string->str); g_string_free (string, TRUE); } gdk_threads_leave (); counter++; } return NULL; } static gpointer record_frames (gpointer args) { ThreadData *data; gpointer buffer; guint n_max; guint n_frames = 0; GError *error = NULL; data = (ThreadData *) args; uca_ring_buffer_reset (data->buffer); data->n_recorded = 0; n_max = (guint) gtk_adjustment_get_value (data->count); while (1) { if (data->state != RECORDING) break; if (n_max > 0 && n_frames >= n_max) break; buffer = uca_ring_buffer_get_write_pointer (data->buffer); uca_camera_grab (data->camera, buffer, NULL); uca_ring_buffer_write_advance (data->buffer); if (error == NULL) { n_frames++; data->n_recorded++; } else print_and_free_error (&error); } if (n_max > 0) { uca_camera_stop_recording (data->camera, NULL); data->state = IDLE; set_tool_button_state (data); } n_frames = uca_ring_buffer_get_num_blocks (data->buffer); gdk_threads_enter (); gtk_adjustment_set_upper (data->frame_slider, n_frames - 1); gtk_adjustment_set_value (data->frame_slider, n_frames - 1); gdk_threads_leave (); return NULL; } gboolean on_delete_event (GtkWidget *widget, GdkEvent *event, gpointer data) { return FALSE; } void on_destroy (GtkWidget *widget, ThreadData *data) { data->state = IDLE; g_object_unref (data->camera); g_object_unref (data->buffer); gtk_main_quit (); } static void update_current_frame (ThreadData *data) { gpointer buffer; guint index; guint n_max; index = (guint) gtk_adjustment_get_value (data->frame_slider); n_max = uca_ring_buffer_get_num_blocks (data->buffer); /* Shift index so that we always show the oldest frames first */ if (n_max > 0) index = (index + data->n_recorded - n_max) % n_max; buffer = uca_ring_buffer_get_pointer (data->buffer, index); egg_histogram_view_update (EGG_HISTOGRAM_VIEW (data->histogram_view), buffer); up_and_down_scale (data, buffer); update_pixbuf (data); } static void on_frame_slider_changed (GtkAdjustment *adjustment, ThreadData *data) { if (data->state == IDLE) update_current_frame (data); } static gboolean write_raw_file (const gchar *filename, UcaRingBuffer *buffer) { FILE *fp; guint n_blocks; gsize size; fp = fopen (filename, "wb"); if (fp == NULL) return FALSE; n_blocks = uca_ring_buffer_get_num_blocks (buffer); size = uca_ring_buffer_get_block_size (buffer); for (guint i = 0; i < n_blocks; i++) fwrite (uca_ring_buffer_get_pointer (buffer, i), size , 1, fp); fclose (fp); return TRUE; } static void on_save (GtkMenuItem *item, ThreadData *data) { GtkWidget *dialog; dialog = gtk_file_chooser_dialog_new ("Save Frames", NULL, GTK_FILE_CHOOSER_ACTION_SAVE, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT, NULL); if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT) { gchar *filename; filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog)); write_raw_file (filename, data->buffer); g_free (filename); } gtk_widget_destroy (dialog); } static void on_start_button_clicked (GtkWidget *widget, ThreadData *data) { GError *error = NULL; uca_camera_start_recording (data->camera, &error); if (error != NULL) { g_printerr ("Failed to start recording: %s\n", error->message); return; } data->state = RUNNING; set_tool_button_state (data); if (!g_thread_create (preview_frames, data, FALSE, &error)) { g_printerr ("Failed to create thread: %s\n", error->message); data->state = IDLE; set_tool_button_state (data); } } static void on_stop_button_clicked (GtkWidget *widget, ThreadData *data, GtkAdjustment *adjustment) { GError *error = NULL; g_object_get (data->camera, "has-camram-recording", &data->data_in_camram, NULL); data->state = IDLE; set_tool_button_state (data); uca_camera_stop_recording (data->camera, &error); on_frame_slider_changed (adjustment, data); if (error != NULL) g_printerr ("Failed to stop: %s\n", error->message); } static void on_record_button_clicked (GtkWidget *widget, ThreadData *data) { GError *error = NULL; uca_camera_start_recording (data->camera, &error); if (error != NULL) { g_printerr ("Failed to start recording: %s\n", error->message); } data->timestamp = (int) time (0); data->state = RECORDING; set_tool_button_state (data); if (!g_thread_create (record_frames, data, FALSE, &error)) { g_printerr ("Failed to create thread: %s\n", error->message); data->state = IDLE; set_tool_button_state (data); } } static gpointer download_frames (ThreadData *data) { gpointer buffer; guint n_frames; guint current_frame = 1; GError *error = NULL; g_object_get (data->camera, "recorded-frames", &n_frames, NULL); gdk_threads_enter (); gtk_adjustment_set_upper (data->download_adjustment, n_frames); gdk_threads_leave (); uca_camera_start_readout (data->camera, &error); if (error != NULL) { g_printerr ("Failed to start read out of camera memory: %s\n", error->message); return NULL; } uca_ring_buffer_reset (data->buffer); while (error == NULL) { buffer = uca_ring_buffer_get_write_pointer (data->buffer); uca_camera_grab (data->camera, buffer, &error); uca_ring_buffer_write_advance (data->buffer); gdk_threads_enter (); gtk_adjustment_set_value (data->download_adjustment, current_frame++); gdk_threads_leave (); } if (error->code == UCA_CAMERA_ERROR_END_OF_STREAM) { guint n_frames = uca_ring_buffer_get_num_blocks (data->buffer); gtk_adjustment_set_upper (data->frame_slider, n_frames - 1); gtk_adjustment_set_value (data->frame_slider, n_frames - 1); } else g_printerr ("Error while reading out frames: %s\n", error->message); g_error_free (error); error = NULL; uca_camera_stop_readout (data->camera, &error); if (error != NULL) g_printerr ("Failed to stop reading out of camera memory: %s\n", error->message); gdk_threads_enter (); gtk_dialog_response (data->download_dialog, GTK_RESPONSE_OK); gdk_threads_leave (); return NULL; } static void on_download_button_clicked (GtkWidget *widget, ThreadData *data) { GError *error = NULL; if (!g_thread_create ((GThreadFunc) download_frames, data, FALSE, &error)) { g_printerr ("Failed to create thread: %s\n", error->message); } gtk_widget_set_sensitive (data->main_window, FALSE); gtk_window_set_modal (GTK_WINDOW (data->download_dialog), TRUE); gtk_dialog_run (data->download_dialog); gtk_widget_hide (GTK_WIDGET (data->download_dialog)); gtk_window_set_modal (GTK_WINDOW (data->download_dialog), FALSE); gtk_widget_set_sensitive (data->main_window, TRUE); gtk_window_set_modal (GTK_WINDOW (data->download_dialog), TRUE); } static void update_zoomed_pixbuf (ThreadData *data) { update_pixbuf_dimensions (data); up_and_down_scale (data, uca_ring_buffer_peek_pointer (data->buffer)); update_pixbuf (data); } static void on_zoom_in_button_clicked (GtkWidget *widget, ThreadData *data) { data->zoom_factor *= 2; update_zoomed_pixbuf (data); } static void on_zoom_out_button_clicked (GtkWidget *widget, ThreadData *data) { data->zoom_factor /= 2; update_zoomed_pixbuf (data); } static void on_zoom_normal_button_clicked (GtkWidget *widget, ThreadData *data) { data->zoom_factor = 1.0; update_zoomed_pixbuf (data); } static void on_rect_color_button_clicked (GtkWidget *widget, ThreadData *data) { if ((data->red == 0.0 && data->green == 0.0) && data->blue == 0.0) { data->red = 1.0; data->green = 1.0; data->blue = 1.0; } else { data->red = 0.0; data->green = 0.0; data->blue = 0.0; } } static void on_histogram_changed (EggHistogramView *view, ThreadData *data) { if (data->state == IDLE) update_current_frame (data); } static void on_colormap_changed (GtkComboBox *widget, ThreadData *data) { GtkTreeModel *model; GtkTreeIter iter; gint map; enum { DISPLAY2_COLUMN, MAP_COLUMN }; model = gtk_combo_box_get_model (widget); gtk_combo_box_get_active_iter (widget, &iter); gtk_tree_model_get (model, &iter, MAP_COLUMN, &map, -1); data->colormap = map; update_pixbuf_dimensions (data); up_and_down_scale (data, uca_ring_buffer_peek_pointer (data->buffer)); update_pixbuf (data); } static void on_roi_width_changed (GObject *object, GParamSpec *pspec, ThreadData *data) { g_object_get (object, "roi-width", &data->width, NULL); update_pixbuf_dimensions (data); } static void on_roi_height_changed (GObject *object, GParamSpec *pspec, ThreadData *data) { g_object_get (object, "roi-height", &data->height, NULL); update_pixbuf_dimensions (data); } static void create_main_window (GtkBuilder *builder, const gchar* camera_name) { static ThreadData td; UcaCamera *camera; GtkWidget *window; GtkWidget *image; GtkWidget *histogram_view; GtkWidget *property_tree_view; GdkPixbuf *pixbuf; GtkBox *histogram_box; GtkAdjustment *max_bin_adjustment; UcaRingBuffer *ring_buffer; gsize image_size; guint n_frames; guint bits_per_sample; guint pixel_size; guint width, height; GError *error = NULL; camera = uca_plugin_manager_get_camera (plugin_manager, camera_name, &error, NULL); if ((camera == NULL) || (error != NULL)) { g_error ("%s\n", error->message); gtk_main_quit (); } g_object_get (camera, "roi-width", &width, "roi-height", &height, "sensor-bitdepth", &bits_per_sample, NULL); g_signal_connect (camera, "notify::roi-width", (GCallback) on_roi_width_changed, &td); g_signal_connect (camera, "notify::roi-height", (GCallback) on_roi_height_changed, &td); histogram_view = egg_histogram_view_new (width * height, bits_per_sample, 256); property_tree_view = egg_property_tree_view_new (G_OBJECT (camera)); image = GTK_WIDGET (gtk_builder_get_object (builder, "image")); histogram_box = GTK_BOX (gtk_builder_get_object (builder, "histogram-box")); window = GTK_WIDGET (gtk_builder_get_object (builder, "window")); max_bin_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "max-bin-value-adjustment")); td.acquisition_expander = GTK_WIDGET (gtk_builder_get_object (builder, "acquisition-expander")); td.properties_expander = GTK_WIDGET (gtk_builder_get_object (builder, "properties-expander")); td.colormap_box = GTK_WIDGET (gtk_builder_get_object (builder, "colormap-box")); td.start_button = GTK_WIDGET (gtk_builder_get_object (builder, "start-button")); td.stop_button = GTK_WIDGET (gtk_builder_get_object (builder, "stop-button")); td.record_button = GTK_WIDGET (gtk_builder_get_object (builder, "record-button")); td.download_button = GTK_WIDGET (gtk_builder_get_object (builder, "download-button")); td.zoom_in_button = GTK_WIDGET (gtk_builder_get_object (builder, "zoom-in-button")); td.zoom_out_button = GTK_WIDGET (gtk_builder_get_object (builder, "zoom-out-button")); td.zoom_normal_button = GTK_WIDGET (gtk_builder_get_object (builder, "zoom-normal-button")); td.rect_color_button = GTK_WIDGET (gtk_builder_get_object (builder, "rectangle-button")); td.download_button = GTK_WIDGET (gtk_builder_get_object (builder, "download-button")); td.histogram_button = GTK_TOGGLE_BUTTON (gtk_builder_get_object (builder, "histogram-checkbutton")); td.log_button = GTK_TOGGLE_BUTTON (gtk_builder_get_object (builder, "logarithm-checkbutton")); td.frame_slider = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "frames-adjustment")); td.count = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "acquisitions-adjustment")); td.hadjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "hadjustment")); td.vadjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "vadjustment")); td.x_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "x_adjustment")); td.y_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "y_adjustment")); td.width_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "width_adjustment")); td.height_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object(builder, "height_adjustment")); td.event_box = GTK_WIDGET (gtk_builder_get_object(builder, "eventbox")); td.mean_label = GTK_LABEL (gtk_builder_get_object (builder, "mean-label")); td.sigma_label = GTK_LABEL (gtk_builder_get_object (builder, "sigma-label")); td.max_label = GTK_LABEL (gtk_builder_get_object (builder, "max-label")); td.min_label = GTK_LABEL (gtk_builder_get_object (builder, "min-label")); td.x_label = GTK_LABEL (gtk_builder_get_object (builder, "x-label1")); td.y_label = GTK_LABEL (gtk_builder_get_object (builder, "y-label1")); td.val_label = GTK_LABEL (gtk_builder_get_object (builder, "val-label1")); td.roix_label = GTK_LABEL (gtk_builder_get_object (builder, "roix-label")); td.roiy_label = GTK_LABEL (gtk_builder_get_object (builder, "roiy-label")); td.roiw_label = GTK_LABEL (gtk_builder_get_object (builder, "roiw-label")); td.roih_label = GTK_LABEL (gtk_builder_get_object (builder, "roih-label")); td.download_dialog = GTK_DIALOG (gtk_builder_get_object (builder, "download-dialog")); td.download_adjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "download-adjustment")); /* Set initial data */ pixel_size = bits_per_sample > 8 ? 2 : 1; image_size = pixel_size * width * height; n_frames = mem_size * 1024 * 1024 / image_size; ring_buffer = uca_ring_buffer_new (image_size, n_frames); egg_histogram_view_update (EGG_HISTOGRAM_VIEW (histogram_view), uca_ring_buffer_peek_pointer (ring_buffer)); pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height); gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf); gtk_adjustment_set_value (max_bin_adjustment, pow (2, bits_per_sample) - 1); gtk_adjustment_set_upper (td.count, (gdouble) G_MAXULONG); g_message ("Allocated memory for %d frames", n_frames); td.pixel_size = pixel_size; td.image = image; td.pixbuf = NULL; td.pixels = NULL; td.buffer = ring_buffer; td.state = IDLE; td.camera = camera; td.width = td.display_width = width; td.height = td.display_height = height; td.zoom_factor = 1.0; td.colormap = 1; td.histogram_view = histogram_view; td.data_in_camram = FALSE; td.main_window = window; update_pixbuf_dimensions (&td); set_tool_button_state (&td); /* Hook up signals */ g_object_bind_property (gtk_builder_get_object (builder, "min-bin-value-adjustment"), "value", td.histogram_view, "minimum-bin-value", G_BINDING_BIDIRECTIONAL); g_object_bind_property (max_bin_adjustment, "value", td.histogram_view, "maximum-bin-value", G_BINDING_BIDIRECTIONAL); g_object_bind_property (gtk_builder_get_object (builder, "repeat-checkbutton"), "active", gtk_builder_get_object (builder, "repeat-box"), "sensitive", 0); g_object_bind_property (camera, "exposure-time", gtk_builder_get_object (builder, "exposure-adjustment"), "value", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE); g_signal_connect (gtk_builder_get_object (builder, "save-item"), "activate", G_CALLBACK (on_save), &td); g_signal_connect (gtk_builder_get_object (builder, "colormap-box"), "changed", G_CALLBACK (on_colormap_changed), &td); g_signal_connect (td.event_box, "motion-notify-event", G_CALLBACK (on_motion_notify), &td); g_signal_connect (td.event_box, "button-press-event", G_CALLBACK (on_button_press), &td); g_signal_connect (td.event_box, "button-release-event", G_CALLBACK (on_button_release), &td); g_signal_connect (td.event_box, "expose-event", G_CALLBACK (on_expose), &td); g_signal_connect (td.frame_slider, "value-changed", G_CALLBACK (on_frame_slider_changed), &td); g_signal_connect (td.start_button, "clicked", G_CALLBACK (on_start_button_clicked), &td); g_signal_connect (td.stop_button, "clicked", G_CALLBACK (on_stop_button_clicked), &td); g_signal_connect (td.record_button, "clicked", G_CALLBACK (on_record_button_clicked), &td); g_signal_connect (td.download_button, "clicked", G_CALLBACK (on_download_button_clicked), &td); g_signal_connect (td.zoom_in_button, "clicked", G_CALLBACK (on_zoom_in_button_clicked), &td); g_signal_connect (td.zoom_out_button, "clicked", G_CALLBACK (on_zoom_out_button_clicked), &td); g_signal_connect (td.zoom_normal_button, "clicked", G_CALLBACK (on_zoom_normal_button_clicked), &td); g_signal_connect (td.rect_color_button, "clicked", G_CALLBACK (on_rect_color_button_clicked), &td); g_signal_connect (histogram_view, "changed", G_CALLBACK (on_histogram_changed), &td); g_signal_connect (window, "destroy", G_CALLBACK (on_destroy), &td); /* Layout */ gtk_container_add (GTK_CONTAINER (gtk_builder_get_object (builder, "property-window")), property_tree_view); gtk_box_pack_start (histogram_box, td.histogram_view, TRUE, TRUE, 6); gtk_box_reorder_child (histogram_box, GTK_WIDGET (td.histogram_button), 2); gtk_widget_show_all (window); } static void on_button_proceed_clicked (GtkWidget *widget, gpointer data) { GtkBuilder *builder = GTK_BUILDER (data); GtkWidget *choice_window = GTK_WIDGET (gtk_builder_get_object (builder, "choice-window")); GtkTreeView *treeview = GTK_TREE_VIEW (gtk_builder_get_object (builder, "treeview-cameras")); GtkListStore *list_store = GTK_LIST_STORE (gtk_builder_get_object (builder, "camera-types")); GtkTreeSelection *selection = gtk_tree_view_get_selection (treeview); GList *selected_rows = gtk_tree_selection_get_selected_rows (selection, NULL); GtkTreeIter iter; gtk_widget_destroy (choice_window); gboolean valid = gtk_tree_model_get_iter (GTK_TREE_MODEL (list_store), &iter, selected_rows->data); if (valid) { gchar *data; gtk_tree_model_get (GTK_TREE_MODEL (list_store), &iter, 0, &data, -1); create_main_window (builder, data); g_free (data); } g_list_foreach (selected_rows, (GFunc) gtk_tree_path_free, NULL); g_list_free (selected_rows); } static void on_treeview_keypress (GtkWidget *widget, GdkEventKey *event, gpointer data) { if (event->keyval == GDK_KEY_Return) gtk_widget_grab_focus (GTK_WIDGET (data)); } static void create_choice_window (GtkBuilder *builder) { GList *camera_types = uca_plugin_manager_get_available_cameras (plugin_manager); GtkWidget *choice_window = GTK_WIDGET (gtk_builder_get_object (builder, "choice-window")); GtkTreeView *treeview = GTK_TREE_VIEW (gtk_builder_get_object (builder, "treeview-cameras")); GtkListStore *list_store = GTK_LIST_STORE (gtk_builder_get_object (builder, "camera-types")); GtkButton *proceed_button = GTK_BUTTON (gtk_builder_get_object (builder, "proceed-button")); GtkTreeIter iter; for (GList *it = g_list_first (camera_types); it != NULL; it = g_list_next (it)) { gtk_list_store_append (list_store, &iter); gtk_list_store_set (list_store, &iter, 0, g_strdup ((gchar *) it->data), -1); } gboolean valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (list_store), &iter); if (valid) { GtkTreeSelection *selection = gtk_tree_view_get_selection (treeview); gtk_tree_selection_unselect_all (selection); gtk_tree_selection_select_path (selection, gtk_tree_model_get_path (GTK_TREE_MODEL (list_store), &iter)); } g_signal_connect (proceed_button, "clicked", G_CALLBACK (on_button_proceed_clicked), builder); g_signal_connect (treeview, "key-press-event", G_CALLBACK (on_treeview_keypress), proceed_button); gtk_widget_show_all (GTK_WIDGET (choice_window)); g_list_foreach (camera_types, (GFunc) g_free, NULL); g_list_free (camera_types); } int main (int argc, char *argv[]) { GtkBuilder *builder; GOptionContext *context; GError *error = NULL; static gchar *camera_name = NULL; static GOptionEntry entries[] = { { "mem-size", 'm', 0, G_OPTION_ARG_INT, &mem_size, "Memory in megabytes to allocate for frame storage", "M" }, { "camera", 'c', 0, G_OPTION_ARG_STRING, &camera_name, "Default camera (skips choice window)", "NAME" }, { NULL } }; context = g_option_context_new ("- control libuca cameras"); g_option_context_add_main_entries (context, entries, NULL); g_option_context_add_group (context, gtk_get_option_group (TRUE)); if (!g_option_context_parse (context, &argc, &argv, &error)) { g_print ("Option parsing failed: %s\n", error->message); return 1; } g_thread_init (NULL); gdk_threads_init (); gtk_init (&argc, &argv); builder = gtk_builder_new (); if (!gtk_builder_add_from_file (builder, CONTROL_GLADE_PATH, &error)) { g_print ("Could not load UI file: %s\n", error->message); return 1; } plugin_manager = uca_plugin_manager_new (); gtk_builder_connect_signals (builder, NULL); if (camera_name != NULL) create_main_window (builder, camera_name); else create_choice_window (builder); gdk_threads_enter (); gtk_main (); gdk_threads_leave (); g_object_unref (plugin_manager); return 0; }