add hw accel toggle to prefs

aqt/__init__.py

@@ -247,8 +247,6 @@ def setupGL(pm):
             print("qt:", msg)
     qInstallMessageHandler(msgHandler)
 
-    print("Hardware acceleration set to", mode)
-
     if mode == "auto":
         return
     elif isLin:

aqt/preferences.py

@@ -76,6 +76,10 @@ class Preferences(QDialog):
         f = self.form
         qc = self.mw.col.conf
         self._setupDayCutoff()
+        if isMac:
+            f.hwAccel.setVisible(False)
+        else:
+            f.hwAccel.setChecked(self.mw.pm.glMode() != "software")
         f.lrnCutoff.setValue(qc['collapseTime']/60.0)
         f.timeLimit.setValue(qc['timeLim']/60.0)
         f.showEstimates.setChecked(qc['estTimes'])
@@ -93,6 +97,17 @@ class Preferences(QDialog):
     def updateCollection(self):
         f = self.form
         d = self.mw.col
+
+        if not isMac:
+            wasAccel = self.mw.pm.glMode() != "software"
+            wantAccel = f.hwAccel.isChecked()
+            if wasAccel != wantAccel:
+                if wantAccel:
+                    self.mw.pm.setGlMode("auto")
+                else:
+                    self.mw.pm.setGlMode("software")
+                showInfo(_("Changes will take effect when you restart Anki."))
+
         qc = d.conf
         qc['dueCounts'] = f.showProgress.isChecked()
         qc['estTimes'] = f.showEstimates.isChecked()

designer/preferences.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>405</width>
-    <height>469</height>
+    <width>423</width>
+    <height>508</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -66,6 +66,13 @@
          </item>
         </layout>
        </item>
+       <item>
+        <widget class="QCheckBox" name="hwAccel">
+         <property name="text">
+          <string>Hardware acceleration (faster, may cause display issues)</string>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QCheckBox" name="showEstimates">
          <property name="text">
@@ -474,6 +481,7 @@
  </widget>
  <tabstops>
   <tabstop>lang</tabstop>
+  <tabstop>hwAccel</tabstop>
   <tabstop>showEstimates</tabstop>
   <tabstop>showProgress</tabstop>
   <tabstop>pastePNG</tabstop>