Improves 'F11' key behaviour (manual HDR toggle)

* In auto HDR mode (default), F11 key is disabled while a video is playing (can still be used from kodi GUI).
* In manual HDR mode is now possible toggle HDR on the fly while HDR video is playing (toggles between HDR passthrough or HDR tonemapped).

xbmc/Application.cpp

@@ -1667,6 +1667,12 @@ bool CApplication::OnAction(const CAction &action)
   // Display HDR : toggle HDR on/off
   if (action.GetID() == ACTION_HDR_TOGGLE)
   {
+    // Only enables manual HDR toggle if no video is playing or auto HDR switch is disabled
+    if (m_appPlayer.IsPlayingVideo() &&
+        CServiceBroker::GetSettingsComponent()->GetSettings()->GetBool(
+            CServiceBroker::GetWinSystem()->SETTING_WINSYSTEM_IS_HDR_DISPLAY))
+      return true;
+
     HDR_STATUS hdrStatus = CServiceBroker::GetWinSystem()->ToggleHDR();
 
     if (hdrStatus == HDR_STATUS::HDR_OFF)

xbmc/cores/VideoPlayer/VideoRenderers/windows/RendererBase.cpp

@@ -518,7 +518,13 @@ void CRendererBase::ProcessHDR(CRenderBuffer* rb)
   }
 
   if (!DX::Windowing()->IsHDROutput())
+  {
+    if (m_lastHdr10.RedPrimary[0] != 0)
+      m_lastHdr10 = {};
+    if (m_HdrType != HDR_TYPE::HDR_NONE_SDR)
+      m_HdrType = HDR_TYPE::HDR_NONE_SDR;
     return;
+  }
 
   // HDR10
   if (rb->color_transfer == AVCOL_TRC_SMPTE2084 && rb->primaries == AVCOL_PRI_BT2020)
@@ -579,6 +585,7 @@ void CRendererBase::ProcessHDR(CRenderBuffer* rb)
         DX::Windowing()->SetHdrColorSpace(DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709);
         m_HdrType = HDR_TYPE::HDR_NONE_SDR;
         m_iCntMetaData = 0;
+        m_lastHdr10 = {};
         if (m_AutoSwitchHDR)
           DX::Windowing()->ToggleHDR(); // Toggle display HDR OFF
       }