From: Michal Malý <madcatxster@devoid-pointer.net>
Date: Sun, 2 Aug 2015 10:34:30 +0000 (+0200)
Subject: Add an option to set autocentering strength
X-Git-Url: https://gitweb.devoid-pointer.net/?a=commitdiff_plain;h=a93ac2384c555d429fd1e19c91e1378f753d4b12;p=FFBChecker.git

Add an option to set autocentering strength
---

diff --git a/ffbdevice.h b/ffbdevice.h
index ed3ddc0..baa5104 100644
--- a/ffbdevice.h
+++ b/ffbdevice.h
@@ -21,6 +21,7 @@ public:
   virtual void close() = 0;
   virtual bool queryDeviceCapabilities() = 0;
   virtual bool removeAndEraseEffect(const int idx) = 0;
+  virtual bool setAutocentering(const int strength) = 0;
   virtual bool setGain(const int gain) = 0;
   virtual bool startEffect(const int idx, const FFBEffectTypes type, std::shared_ptr<FFBEffectParameters> parameters) = 0;
   virtual bool stopEffect(const int idx) = 0;
@@ -33,6 +34,7 @@ protected:
   std::vector<ConditionSubtypes> m_availableConditionSubtypes;
   std::vector<FFBEffectTypes> m_availableEffects;
   std::vector<PeriodicWaveforms> m_availablePeriodicWaveforms;
+  bool m_adjustableAC;
   bool m_adjustableGain;
 
   std::vector<std::shared_ptr<FFBEffect>> m_effects;
diff --git a/linuxffbdevice.cpp b/linuxffbdevice.cpp
index 9afcd33..4ab6b7e 100644
--- a/linuxffbdevice.cpp
+++ b/linuxffbdevice.cpp
@@ -78,6 +78,8 @@ bool LinuxFFBDevice::queryDeviceCapabilities()
   /* Query device-wide capabilities */
   if (testBit(FF_GAIN, caps))
     m_adjustableGain = true;
+  if (testBit(FF_AUTOCENTER, caps))
+    m_adjustableAC = true;
 
   return true;
 }
@@ -120,6 +122,34 @@ bool LinuxFFBDevice::removeEffect(const int idx)
   return true;
 }
 
+bool LinuxFFBDevice::setAutocentering(const int strength)
+{
+  struct input_event evt;
+  int ret;
+
+  if (!m_adjustableAC) {
+    QMessageBox::warning(nullptr, LNXDEV_ERR_CAPTION, "Device does not have adjustable autocentering");
+    return false;
+  }
+
+  if (strength < 0 || strength > 0xFFFF) {
+    QMessageBox::warning(nullptr, LNXDEV_ERR_CAPTION, "Autocentering strength must be within <0; 65535>");
+    return false;
+  }
+
+  evt.type = EV_FF;
+  evt.code = FF_AUTOCENTER;
+  evt.value = strength;
+  ret = write(c_fd, &evt, sizeof(struct input_event));
+  if (ret != sizeof(struct input_event)) {
+    QMessageBox::warning(nullptr, LNXDEV_ERR_CAPTION, "Unable to set autocentering strength");
+    return false;
+  }
+
+  return true;
+}
+
+
 bool LinuxFFBDevice::setGain(const int gain)
 {
   struct input_event evt;
diff --git a/linuxffbdevice.h b/linuxffbdevice.h
index 52460bd..66289c9 100644
--- a/linuxffbdevice.h
+++ b/linuxffbdevice.h
@@ -14,6 +14,7 @@ public:
   void close();
   bool queryDeviceCapabilities();
   bool removeAndEraseEffect(const int idx);
+  bool setAutocentering(const int strength);
   bool setGain(const int gain);
   bool startEffect(const int idx, const FFBEffectTypes type, std::shared_ptr<FFBEffectParameters> parameters);
   bool stopEffect(const int idx);
diff --git a/mainwindow.cpp b/mainwindow.cpp
index f260c06..351d7b6 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -53,6 +53,7 @@ MainWindow::MainWindow(const QString& title, QWidget* parent) :
   connect(ui->cbox_interfaces, SIGNAL(activated(int)), this, SLOT(onInterfaceSelected(const int)));
   connect(ui->qpb_refreshDevices, SIGNAL(clicked()), this, SLOT(onRefreshDevicesClicked()));
   connect(ui->qpb_remove, SIGNAL(clicked()), this, SLOT(onRemoveEffectClicked()));
+  connect(ui->qpb_setAC, SIGNAL(clicked()), this, SLOT(onSetACClicked()));
   connect(ui->qpb_setGain, SIGNAL(clicked()), this, SLOT(onSetGainClicked()));
   connect(ui->qpb_start, SIGNAL(clicked()), this, SLOT(onStartEffectClicked()));
   connect(ui->qpb_stop, SIGNAL(clicked()), this, SLOT(onStopEffectClicked()));
@@ -273,6 +274,24 @@ void MainWindow::onRemoveEffectClicked()
     setEffectStatusText(m_activeDevice->effectStatusByIdx(effectIdx));
 }
 
+void MainWindow::onSetACClicked()
+{
+  bool ok;
+  int strength;
+
+  if (m_activeDevice == nullptr)
+    return;
+
+  strength = ui->qle_autocentering->text().toInt(&ok);
+  if (!ok) {
+    QMessageBox::warning(this, res_inputFormatErrCap, "Invalid autocentering strength value");
+    return;
+  }
+
+  m_activeDevice->setAutocentering(strength);
+}
+
+
 void MainWindow::onSetGainClicked()
 {
   bool ok;
diff --git a/mainwindow.h b/mainwindow.h
index 36c0322..2776b74 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -70,6 +70,7 @@ private slots:
   void onInterfaceSelected(const int cboxIdx);
   void onRefreshDevicesClicked();
   void onRemoveEffectClicked();
+  void onSetACClicked();
   void onSetGainClicked();
   void onStartEffectClicked();
   void onStopEffectClicked();
diff --git a/mainwindow.ui b/mainwindow.ui
index 9646068..a80af5b 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>444</width>
-    <height>623</height>
+    <height>670</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -29,16 +29,6 @@
         <item row="0" column="1">
          <widget class="QComboBox" name="cbox_devices"/>
         </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="ql_effectSlots">
-          <property name="text">
-           <string>Effect slots:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="1" column="1">
-         <widget class="QComboBox" name="cbox_effectSlots"/>
-        </item>
         <item row="3" column="0" colspan="2">
          <widget class="QPushButton" name="qpb_refreshDevices">
           <property name="text">
@@ -103,6 +93,30 @@
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="ql_autocentering">
+        <property name="text">
+         <string>Autocentering:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="qle_autocentering">
+        <property name="text">
+         <string>65535</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QPushButton" name="qpb_setAC">
+        <property name="text">
+         <string>Set AC</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </item>
     <item>
@@ -128,6 +142,20 @@
       </property>
      </widget>
     </item>
+    <item>
+     <layout class="QFormLayout" name="formLayout_4">
+      <item row="0" column="0">
+       <widget class="QLabel" name="ql_effectSlots">
+        <property name="text">
+         <string>Effect slots:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QComboBox" name="cbox_effectSlots"/>
+      </item>
+     </layout>
+    </item>
     <item>
      <widget class="QLabel" name="ql_effectStatus">
       <property name="font">
diff --git a/sdl2ffbdevice.cpp b/sdl2ffbdevice.cpp
index eeb7311..45fed88 100644
--- a/sdl2ffbdevice.cpp
+++ b/sdl2ffbdevice.cpp
@@ -81,6 +81,9 @@ bool SDL2FFBDevice::queryDeviceCapabilities()
   if (caps & SDL_HAPTIC_GAIN)
     m_adjustableGain = true;
 
+  if (caps & SDL_HAPTIC_AUTOCENTER)
+    m_adjustableAC = true;
+
   return true;
 }
 
@@ -125,6 +128,27 @@ bool SDL2FFBDevice::removeAndEraseEffect(const int idx)
   return true;
 }
 
+bool SDL2FFBDevice::setAutocentering(const int strength)
+{
+  if (!m_adjustableAC) {
+    QMessageBox::warning(nullptr, SDL2DEV_ERR_CAPTION, "Device does not have adjustable autocentering");
+    return false;
+  }
+
+  if (strength < 0 || strength > 100) {
+    QMessageBox::warning(nullptr, SDL2DEV_ERR_CAPTION, "Autocentering strength must be within <0; 100>");
+    return false;
+  }
+
+  if (SDL_HapticSetAutocenter(c_haptic, strength) < 0) {
+    QMessageBox::warning(nullptr, SDL2DEV_ERR_CAPTION, QString("Unable to set autocentering:\n%1").arg(SDL_GetError()));
+    return false;
+  }
+
+  return true;
+}
+
+
 bool SDL2FFBDevice::setGain(const int gain)
 {
   if (!m_adjustableGain) {
diff --git a/sdl2ffbdevice.h b/sdl2ffbdevice.h
index e25cd75..fa89c4d 100644
--- a/sdl2ffbdevice.h
+++ b/sdl2ffbdevice.h
@@ -10,6 +10,7 @@ public:
   void close();
   bool queryDeviceCapabilities();
   bool removeAndEraseEffect(const int idx);
+  bool setAutocentering(const int strength);
   bool setGain(const int idx);
   bool startEffect(const int idx, const FFBEffectTypes type, std::shared_ptr<FFBEffectParameters> parameters);
   bool stopEffect(const int idx);