windrive: basic disc discovery for Win32

This is completely untested (other than compiling & linking).

modules/LIST

@@ -340,6 +340,7 @@ $Id$
  * wave: Wave video effect
  * waveout: simple audio output module for Windows
  * win32text: Text renderer using native Win32 API
+ * windrive: Windows logical disc drives
  * wingapi: Win CE video output
  * wingdi: WIN 32 / WIN CE GDI video output
  * wma_fixed: wma decoder using integer decoder from Rockbox

modules/services_discovery/Modules.am

@@ -24,6 +24,14 @@ if HAVE_XCB
 libvlc_LTLIBRARIES += libxcb_apps_plugin.la
 endif
 
+libwindrive_plugin_la_SOURCES = windrive.c
+libwindrive_plugin_la_CFLAGS = $(AM_CFLAGS)
+libwindrive_plugin_la_LIBADD = $(AM_LIBADD)
+libwindrive_plugin_la_DEPENDENCIES =
+if HAVE_WIN32
+libvlc_LTLIBRARIES += libwindrive_plugin.la
+endif
+
 EXTRA_LTLIBRARIES += \
 	libudev_plugin.la
 libvlc_LTLIBRARIES += \

modules/services_discovery/windrive.c

+/**
+ * @file win_disc.c
+ * @brief List of disc drives for VLC media player for Windows
+ */
+/*****************************************************************************
+ * Copyright © 2010 Rémi Denis-Courmont
+ *
+ * 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 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  02110-1301  USA
+ ****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <vlc_common.h>
+#include <vlc_services_discovery.h>
+#include <vlc_plugin.h>
+
+static int Open (vlc_object_t *);
+
+VLC_SD_PROBE_HELPER("disc", "Discs", SD_CAT_DEVICES)
+
+/*
+ * Module descriptor
+ */
+vlc_module_begin ()
+    add_submodule ()
+    set_shortname (N_("Discs"))
+    set_description (N_("Discs"))
+    set_category (CAT_PLAYLIST)
+    set_subcategory (SUBCAT_PLAYLIST_SD)
+    set_capability ("services_discovery", 0)
+    set_callbacks (Open, NULL)
+    add_shortcut ("disc")
+
+    VLC_SD_PROBE_SUBMODULE
+
+vlc_module_end ()
+
+/**
+ * Probes and initializes.
+ */
+static int Open (vlc_object_t *obj)
+{
+    services_discovery_t *sd = (services_discovery_t *)obj;
+
+    LONG drives = GetLogicalDrives ();
+    char mrl[12] = "file:///A:/", name[3] = "A:";
+    TCHAR path[4] = "A:\\";
+
+    for (char d = 0; d < 26; d++)
+    {
+        input_item_t *item;
+        char letter = 'A' + d;
+
+        /* Does this drive actually exist? */
+        if (!(drives & (1 << d)))
+            continue;
+        /* Is it a disc drive? */
+        path[0] = letter;
+        if (GetDriveType (path) != DRIVE_CDROM)
+            continue;
+
+        mrl[8] = name[0] = letter;
+        item = input_item_NewWithType (VLC_OBJECT (sd), mrl, name,
+                                       0, NULL, 0, -1, ITEM_TYPE_DISC);
+        msg_Dbg (sd, "adding %s (%s)", mrl, name);
+        if (item == NULL)
+            break;
+
+        services_discovery_AddItem (sd, item, _("Local drives"));
+    }
+    return VLC_SUCCESS;
+}