cdvdgigaherz:linux: Add config and GUI code

plugins/cdvdGigaherz/src/CDVD.h

@@ -99,6 +99,8 @@ void ReadSettings();
 void WriteSettings();
 #if defined(_WIN32)
 std::wstring GetValidDrive();
+#else
+std::string GetValidDrive();
 #endif
 
 extern Settings g_settings;

plugins/cdvdGigaherz/src/Unix/GtkGui.cpp

@@ -0,0 +1,71 @@
+/*  PCSX2 - PS2 Emulator for PCs
+ *  Copyright (C) 2016  PCSX2 Dev Team
+ *
+ *  PCSX2 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 Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  PCSX2 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 General Public License along with PCSX2.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "CDVD.h"
+#include <gtk/gtk.h>
+
+std::vector<std::string> GetOpticalDriveList();
+
+static void ComboboxCallback(GtkComboBoxText *combobox, gpointer data)
+{
+    Settings *settings = reinterpret_cast<Settings *>(data);
+    settings->Set("drive", gtk_combo_box_text_get_active_text(combobox));
+}
+
+void configure()
+{
+    ReadSettings();
+
+    GtkDialogFlags flags = static_cast<GtkDialogFlags>(GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT);
+    GtkWidget *dialog = gtk_dialog_new_with_buttons("Config", nullptr,
+                                                    flags,
+                                                    "Ok", GTK_RESPONSE_ACCEPT,
+                                                    "Cancel", GTK_RESPONSE_REJECT,
+                                                    nullptr);
+
+    GtkWidget *label = gtk_label_new("Device:");
+    GtkWidget *combobox = gtk_combo_box_text_new();
+
+    auto drives = GetOpticalDriveList();
+    std::string drive;
+    g_settings.Get("drive", drive);
+    for (size_t n = 0; n < drives.size(); ++n) {
+        gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combobox), drives[n].c_str());
+        if (drive == drives[n])
+            gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), n);
+    }
+
+#if GTK_MAJOR_VERSION >= 3
+    GtkWidget *box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+#else
+    GtkWidget *box = gtk_vbox_new(0, 10);
+#endif
+    gtk_box_pack_start(GTK_BOX(box), label, 0, 0, 0);
+    gtk_box_pack_start(GTK_BOX(box), combobox, 0, 0, 10);
+
+    GtkWidget *content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+    gtk_container_add(GTK_CONTAINER(content_area), box);
+
+    Settings settings_copy = g_settings;
+    g_signal_connect(combobox, "changed", G_CALLBACK(ComboboxCallback), &settings_copy);
+
+    gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER_ALWAYS);
+    gtk_widget_show_all(dialog);
+    if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
+        g_settings = settings_copy;
+        WriteSettings();
+    }
+    gtk_widget_destroy(dialog);
+}

plugins/cdvdGigaherz/src/Unix/LinuxConfig.cpp

@@ -0,0 +1,77 @@
+/*  PCSX2 - PS2 Emulator for PCs
+ *  Copyright (C) 2016  PCSX2 Dev Team
+ *
+ *  PCSX2 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 Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  PCSX2 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 General Public License along with PCSX2.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "CDVD.h"
+#include <libudev.h>
+#include <fcntl.h>
+#include <linux/cdrom.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+std::vector<std::string> GetOpticalDriveList()
+{
+    udev *udev_context = udev_new();
+    if (!udev_context)
+        return {};
+
+    std::vector<std::string> drives;
+    udev_enumerate *enumerate = udev_enumerate_new(udev_context);
+    if (enumerate) {
+        udev_enumerate_add_match_subsystem(enumerate, "block");
+        udev_enumerate_add_match_property(enumerate, "ID_CDROM_DVD", "1");
+        udev_enumerate_scan_devices(enumerate);
+        udev_list_entry *devices = udev_enumerate_get_list_entry(enumerate);
+
+        udev_list_entry *dev_list_entry;
+        udev_list_entry_foreach(dev_list_entry, devices)
+        {
+            const char *path = udev_list_entry_get_name(dev_list_entry);
+            udev_device *device = udev_device_new_from_syspath(udev_context, path);
+            const char *devnode = udev_device_get_devnode(device);
+            if (devnode)
+                drives.push_back(devnode);
+            udev_device_unref(device);
+        }
+        udev_enumerate_unref(enumerate);
+    }
+    udev_unref(udev_context);
+
+    return drives;
+}
+
+std::string GetValidDrive()
+{
+    std::string drive;
+    g_settings.Get("drive", drive);
+    if (!drive.empty()) {
+        int fd = open(drive.c_str(), O_RDONLY | O_NONBLOCK);
+        if (fd != -1) {
+            if (ioctl(fd, CDROM_GET_CAPABILITY, 0) == -1)
+                drive.clear();
+            close(fd);
+        } else {
+            drive.clear();
+        }
+    }
+    if (drive.empty()) {
+        auto drives = GetOpticalDriveList();
+        if (!drives.empty())
+            drive = drives.front();
+    }
+    if (!drive.empty())
+        printf(" * CDVD: Opening drive '%s'...\n", drive.c_str());
+
+    return drive;
+}

plugins/cdvdGigaherz/src/Windows/cdvdGigaherz.vcxproj

@@ -54,6 +54,12 @@
   <ItemGroup>
     <ClCompile Include="..\CDVD.cpp" />
     <ClCompile Include="..\Settings.cpp" />
+    <ClCompile Include="..\Unix\GtkGui.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="..\Unix\LinuxConfig.cpp">
+      <ExcludedFromBuild>true</ExcludedFromBuild>
+    </ClCompile>
     <ClCompile Include="..\Unix\LinuxIOCtlSrc.cpp">
       <ExcludedFromBuild>true</ExcludedFromBuild>
     </ClCompile>

plugins/cdvdGigaherz/src/Windows/cdvdGigaherz.vcxproj.filters

@@ -19,6 +19,9 @@
     <Filter Include="Source Files\Linux">
       <UniqueIdentifier>{102507ff-fef0-4989-9bcb-4fa14a0b7595}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source Files\GTK">
+      <UniqueIdentifier>{2054202d-299a-4cbf-8f4f-282bfe79a98e}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\CDVD.cpp">
@@ -42,6 +45,12 @@
     <ClCompile Include="config.cpp">
       <Filter>Source Files\Windows</Filter>
     </ClCompile>
+    <ClCompile Include="..\Unix\LinuxConfig.cpp">
+      <Filter>Source Files\Linux</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Unix\GtkGui.cpp">
+      <Filter>Source Files\GTK</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\CDVD.h">