use SDL for resolution -> multimonitor support

apps/launcher/CMakeLists.txt

@@ -90,6 +90,7 @@ target_link_libraries(omwlauncher
     ${Boost_LIBRARIES}
     ${OGRE_LIBRARIES}
     ${OGRE_STATIC_PLUGINS}
+    ${SDL2_LIBRARY}
     ${QT_LIBRARIES}
     components
 )

apps/launcher/graphicspage.cpp

@@ -3,6 +3,7 @@
 #include <QDesktopWidget>
 #include <QMessageBox>
 #include <QDir>
+#include <SDL.h>
 
 #include <cstdlib>
 
@@ -42,6 +43,7 @@ GraphicsPage::GraphicsPage(Files::ConfigurationManager &cfg, GraphicsSettings &g
     connect(rendererComboBox, SIGNAL(currentIndexChanged(const QString&)), this, SLOT(rendererChanged(const QString&)));
     connect(fullScreenCheckBox, SIGNAL(stateChanged(int)), this, SLOT(slotFullScreenChanged(int)));
     connect(standardRadioButton, SIGNAL(toggled(bool)), this, SLOT(slotStandardToggled(bool)));
+    connect(screenComboBox, SIGNAL(currentIndexChanged(const QString&)), this, SLOT(screenChanged(const QString&)));
 
 }
 
@@ -144,17 +146,84 @@ bool GraphicsPage::setupOgre()
     }
 
     antiAliasingComboBox->clear();
-    resolutionComboBox->clear();
     antiAliasingComboBox->addItems(getAvailableOptions(QString("FSAA"), mSelectedRenderSystem));
-    resolutionComboBox->addItems(getAvailableResolutions(mSelectedRenderSystem));
 
-    // Load the rest of the values
-    loadSettings();
     return true;
 }
 
-void GraphicsPage::loadSettings()
+bool GraphicsPage::setupSDL()
 {
+    // FIXME: do setupSDLWordaround here instead.
+    // seems like Qt, SDL and Ogre don't like each other
+    // results in a segfault if SDL is initialized after Qt
+
+    QStringList screens;
+    for (int i = 0; i < mScreenCount; i++)
+    {
+        screens.append(QString("Screen ") + QString::number(i + 1));
+    }
+    screenComboBox->addItems(screens);
+
+    return true;
+}
+
+std::vector<VideoMode> GraphicsPage::mVideoModes;
+int GraphicsPage::mScreenCount;
+
+bool GraphicsPage::setupSDLWordaround() {
+    if (SDL_Init(SDL_INIT_VIDEO) != 0)
+    {
+        std::cout << "SDL_Init failed: " << SDL_GetError() << std::endl;
+        return false;
+    }
+
+    SDL_DisplayMode mode;
+    int displayIndex, modeIndex, displays = SDL_GetNumVideoDisplays();
+    mScreenCount = displays;
+
+    if(displays < 0)
+    {
+        std::cout << "SDL_GetNumVideoDisplays failed: " << SDL_GetError() << std::endl;
+        SDL_Quit();
+        return false;
+    }
+
+    for (displayIndex = 0; displayIndex < displays; displayIndex++)
+    {
+        int modes = SDL_GetNumDisplayModes(displayIndex);
+        if(modes < 0)
+        {
+            std::cout << "SDL_GetNumDisplayModes failed: " << SDL_GetError() << std::endl;
+            SDL_Quit();
+            return false;
+        }
+        for (modeIndex = 0; modeIndex < modes; modeIndex++)
+        {
+            if (SDL_GetDisplayMode(displayIndex, modeIndex, &mode) < 0)
+            {
+                std::cout << "SDL_GetDisplayMode failed: " << SDL_GetError() << std::endl;
+                SDL_Quit();
+                return false;
+            }
+            VideoMode vmode;
+            vmode.w = mode.w;
+            vmode.h = mode.h;
+            vmode.screen = displayIndex;
+            mVideoModes.push_back(vmode);
+        }
+    }
+
+    SDL_Quit();
+    return true;
+}
+
+bool GraphicsPage::loadSettings()
+{
+    if (!setupSDL())
+        return false;
+    if (!setupOgre())
+        return false;
+
     if (mGraphicsSettings.value(QString("Video/vsync")) == QLatin1String("true"))
         vSyncCheckBox->setCheckState(Qt::Checked);
 
@@ -168,6 +237,9 @@ void GraphicsPage::loadSettings()
     QString width = mGraphicsSettings.value(QString("Video/resolution x"));
     QString height = mGraphicsSettings.value(QString("Video/resolution y"));
     QString resolution = width + QString(" x ") + height;
+    QString screen = mGraphicsSettings.value(QString("Video/screen"));
+
+    screenComboBox->setCurrentIndex(screenComboBox->findText(QString("Screen ") + screen));
 
     int resIndex = resolutionComboBox->findText(resolution, Qt::MatchStartsWith);
 
@@ -180,6 +252,8 @@ void GraphicsPage::loadSettings()
         customHeightSpinBox->setValue(height.toInt());
 
     }
+
+    return true;
 }
 
 void GraphicsPage::saveSettings()
@@ -205,6 +279,11 @@ void GraphicsPage::saveSettings()
         mGraphicsSettings.setValue(QString("Video/resolution x"), QString::number(customWidthSpinBox->value()));
         mGraphicsSettings.setValue(QString("Video/resolution y"), QString::number(customHeightSpinBox->value()));
     }
+
+    QRegExp screenRe(QString(".*(\\d+)"));
+    if(screenRe.exactMatch(screenComboBox->currentText())) {
+        mGraphicsSettings.setValue(QString("Video/screen"), screenRe.cap(1));
+    }
 }
 
 QStringList GraphicsPage::getAvailableOptions(const QString &key, Ogre::RenderSystem *renderer)
@@ -240,6 +319,33 @@ QStringList GraphicsPage::getAvailableOptions(const QString &key, Ogre::RenderSy
     return result;
 }
 
+#if 1
+QStringList GraphicsPage::getAvailableResolutions(int screen)
+{
+    QStringList result;
+    for (std::vector<VideoMode>::iterator it = mVideoModes.begin(); it != mVideoModes.end(); it++)
+    {
+        VideoMode mode = *it;
+        if(mode.screen != screen)
+            continue;
+
+        QString aspect = getAspect(mode.w, mode.h);
+        QString resolution = QString::number(mode.w) + QString(" x ") + QString::number(mode.h);
+
+        if (aspect == QLatin1String("16:9") || aspect == QLatin1String("16:10")) {
+            resolution.append(tr("\t(Wide ") + aspect + ")");
+
+        } else if (aspect == QLatin1String("4:3")) {
+            resolution.append(tr("\t(Standard 4:3)"));
+        }
+
+        result.append(resolution);
+    }
+    return result;
+}
+#endif
+
+#if 0
 QStringList GraphicsPage::getAvailableResolutions(Ogre::RenderSystem *renderer)
 {
     QString key("Video Mode");
@@ -288,14 +394,15 @@ QStringList GraphicsPage::getAvailableResolutions(Ogre::RenderSystem *renderer)
 
     return result;
 }
+#endif
 
 QRect GraphicsPage::getMaximumResolution()
 {
-    QRect max, res;
+    QRect max;
     int i, screens = QApplication::desktop()->screenCount();
     for (i = 0; i < screens; i++)
     {
-        res = QApplication::desktop()->screenGeometry(i);
+        QRect res = QApplication::desktop()->screenGeometry(i);
         if (res.width() > max.width())
             max.setWidth(res.width());
         if (res.height() > max.height())
@@ -309,10 +416,17 @@ void GraphicsPage::rendererChanged(const QString &renderer)
     mSelectedRenderSystem = mOgre->getRenderSystemByName(renderer.toStdString());
 
     antiAliasingComboBox->clear();
-    resolutionComboBox->clear();
 
     antiAliasingComboBox->addItems(getAvailableOptions(QString("FSAA"), mSelectedRenderSystem));
-    resolutionComboBox->addItems(getAvailableResolutions(mSelectedRenderSystem));
+}
+
+void GraphicsPage::screenChanged(const QString &screen)
+{
+    QRegExp screenRe(QString(".*(\\d+)"));
+    if(screenRe.exactMatch(screen)) {
+        resolutionComboBox->clear();
+        resolutionComboBox->addItems(getAvailableResolutions(screenRe.cap(1).toInt() - 1));
+    }
 }
 
 void GraphicsPage::slotFullScreenChanged(int state)

apps/launcher/graphicspage.hpp

@@ -18,6 +18,13 @@
 
 #include "ui_graphicspage.h"
 
+struct VideoMode
+{
+    int w;
+    int h;
+    int screen;
+};
+
 class GraphicsSettings;
 
 namespace Files { struct ConfigurationManager; }
@@ -30,10 +37,14 @@ public:
     GraphicsPage(Files::ConfigurationManager &cfg, GraphicsSettings &graphicsSettings, QWidget *parent = 0);
 
     void saveSettings();
-    bool setupOgre();
+    bool loadSettings();
+
+    // SDL workaround
+    static bool setupSDLWordaround();
 
 public slots:
     void rendererChanged(const QString &renderer);
+    void screenChanged(const QString &screen);
 
 private slots:
     void slotFullScreenChanged(int state);
@@ -55,11 +66,14 @@ private:
     GraphicsSettings &mGraphicsSettings;
 
     QStringList getAvailableOptions(const QString &key, Ogre::RenderSystem *renderer);
-    QStringList getAvailableResolutions(Ogre::RenderSystem *renderer);
+    QStringList getAvailableResolutions(int screen);
     QRect getMaximumResolution();
 
-    void loadSettings();
+    static std::vector<VideoMode> mVideoModes;
+    static int mScreenCount;
 
+    bool setupOgre();
+    bool setupSDL();
 };
 
 #endif

apps/launcher/main.cpp

@@ -3,9 +3,14 @@
 #include <QDir>
 
 #include "maindialog.hpp"
+// SDL workaround
+#include "graphicspage.hpp"
 
 int main(int argc, char *argv[])
 {
+    // SDL woraround
+    GraphicsPage::setupSDLWordaround();
+
     QApplication app(argc, argv);
 
     // Now we make sure the current dir is set to application path

apps/launcher/maindialog.cpp

@@ -292,8 +292,8 @@ bool MainDialog::setup()
     // Now create the pages as they need the settings
     createPages();
 
-    // Call this so we can exit on Ogre errors before mainwindow is shown
-    if (!mGraphicsPage->setupOgre())
+    // Call this so we can exit on Ogre/SDL errors before mainwindow is shown
+    if (!mGraphicsPage->loadSettings())
         return false;
 
     loadSettings();

files/ui/graphicspage.ui

@@ -58,6 +58,13 @@
        </widget>
       </item>
       <item row="3" column="0">
+       <widget class="QLabel" name="screenLabel">
+        <property name="text">
+         <string>Screen:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
        <widget class="QLabel" name="resolutionLabel">
         <property name="text">
          <string>Resolution:</string>
@@ -71,6 +78,9 @@
        <widget class="QComboBox" name="antiAliasingComboBox"/>
       </item>
       <item row="3" column="1">
+       <widget class="QComboBox" name="screenComboBox"/>
+      </item>
+      <item row="4" column="1">
        <layout class="QGridLayout" name="resolutionLayout">
         <item row="1" column="2">
          <layout class="QHBoxLayout" name="customResolutionLayout" stretch="1,0,1">