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v4l.c

/*
 * Hardware Information, version 0.3
 * Copyright (C) 2003 Leandro Pereira <leandro@linuxmag.com.br>
 *
 * May be modified and/or distributed under the terms of GNU GPL version 2.
 *
 */

#include "hardinfo.h"
#include "v4l.h"

#include <stdlib.h>
#include <dirent.h>

#define get_str_val(var) { \
              walk_until_inclusive(':'); buf++; \
              var = g_strdup(buf); \
            continue; \
      }

V4LDevice *hi_scan_v4l(void)
{
      FILE *proc_video;
      DIR *proc_dir;
      struct dirent *sd;
      V4LDevice *v4l_dev, *v4l;
      struct stat st;
      
      v4l = NULL;

      if (stat("/proc/video/dev", &st))
            return NULL;
      
      proc_dir = opendir("/proc/video/dev");
      if(!proc_dir)
            return NULL;

      while (sd = readdir(proc_dir)) {
            gchar *dev, buffer[128];
            
            dev = g_strdup_printf("/proc/video/dev/%s", sd->d_name);
            proc_video = fopen(dev, "r");
            g_free(dev);
            
            if(!proc_video)
                  continue;
                  
            v4l_dev = g_new0(V4LDevice, 1);
            v4l_dev->next = v4l;
            v4l = v4l_dev;
            
            while (fgets(buffer, 128, proc_video)) {
                  char *buf = g_strstrip(buffer);
                  
                  if(!strncmp(buf, "name", 4))
                        get_str_val(v4l_dev->name)
                  else if(!strncmp(buf, "type", 4))
                        get_str_val(v4l_dev->type)
            }           

            fclose(proc_video);           
      }

      return v4l;
}

void hi_show_v4l_info(MainWindow *mainwindow, V4LDevice *device)
{
      GtkWidget *hbox, *vbox, *label;
      gchar *buf;
#ifdef GTK2
      GtkWidget *pixmap;      
#endif

      if(!device) return;

      hbox = gtk_hbox_new(FALSE, 2);
      gtk_container_set_border_width(GTK_CONTAINER(hbox), 4);
      gtk_widget_show(hbox);
      
#ifdef GTK2
      buf = g_strdup_printf("%sv4l.png", IMG_PREFIX);
      pixmap = gtk_image_new_from_file(buf);
      gtk_widget_show(pixmap);
      
      gtk_box_pack_start(GTK_BOX(hbox), pixmap, FALSE, FALSE, 0);
      
      g_free(buf);
#endif

      if(mainwindow->framec)
            gtk_widget_destroy(mainwindow->framec);

      gtk_container_add(GTK_CONTAINER(mainwindow->frame), hbox);
      mainwindow->framec = hbox;
      
      gtk_frame_set_label(GTK_FRAME(mainwindow->frame), _("Device Information"));
      
      vbox = gtk_vbox_new(FALSE, 5);
      gtk_widget_show(vbox);
      gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);

#ifdef GTK2
      buf = g_strdup_printf("<b>%s</b>", device->name);
      
      label = gtk_label_new(buf);
      gtk_widget_show(label);
      gtk_label_set_use_markup(GTK_LABEL(label), TRUE);
      gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
      
      g_free(buf);
#else
      label = gtk_label_new(device->name);
      gtk_widget_show(label);
      gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
#endif

      if (device->type) {
            gchar *b = g_strdup(device->type);
            gpointer b_start = b;
      
            do {
                  if (*b == '|') *b = '\n';
                  b++;
            } while(*b);
            b = b_start;
      
            buf = g_strdup_printf("Type:\n%s", b);
      
            label = gtk_label_new(buf);
            gtk_widget_show(label);
            gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
      
            g_free(buf);
            g_free(b);
      }
}

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