[rendering] fixed split resolution in view mode setting and fix displ…

…ay zoom mode

When the GUI height is 720 and the Display height is 1080 we would set the zoom amount to 1.5. So we have to apply the split resolution scaling factor before we do the calculation.

xbmc/cores/VideoRenderers/BaseRenderer.cpp

@@ -582,6 +582,7 @@ void CBaseRenderer::SetViewMode(int viewMode)
   RESOLUTION res = GetResolution();
   float screenWidth = (float)(g_settings.m_ResInfo[res].Overscan.right - g_settings.m_ResInfo[res].Overscan.left);
   float screenHeight = (float)(g_settings.m_ResInfo[res].Overscan.bottom - g_settings.m_ResInfo[res].Overscan.top);
+
   if(m_iFlags & CONF_FLAGS_FORMAT_SBS)
     screenWidth /= 2;
   else if(m_iFlags & CONF_FLAGS_FORMAT_TB)
@@ -592,6 +593,13 @@ void CBaseRenderer::SetViewMode(int viewMode)
   bool is43 = (sourceFrameRatio < 8.f/(3.f*sqrt(3.f)) &&
               g_settings.m_currentVideoSettings.m_ViewMode == VIEW_MODE_NORMAL);
 
+  // Splitres scaling factor
+  float xscale = (float)g_settings.m_ResInfo[res].iScreenWidth  / (float)g_settings.m_ResInfo[res].iWidth;
+  float yscale = (float)g_settings.m_ResInfo[res].iScreenHeight / (float)g_settings.m_ResInfo[res].iHeight;
+
+  screenWidth   *= xscale;
+  screenHeight  *= yscale;
+
   g_settings.m_fVerticalShift = 0.0f;
   g_settings.m_bNonLinStretch = false;
 

xbmc/video/windows/GUIWindowFullScreen.cpp

@@ -960,10 +960,15 @@ void CGUIWindowFullScreen::FrameMove()
     g_application.m_pPlayer->GetVideoRect(SrcRect, DestRect);
     g_application.m_pPlayer->GetVideoAspectRatio(fAR);
     {
+      // Splitres scaling factor
+      RESOLUTION res = g_graphicsContext.GetVideoResolution();
+      float xscale = (float)g_settings.m_ResInfo[res].iScreenWidth  / (float)g_settings.m_ResInfo[res].iWidth;
+      float yscale = (float)g_settings.m_ResInfo[res].iScreenHeight / (float)g_settings.m_ResInfo[res].iHeight;
+
       CStdString strSizing;
       strSizing.Format(g_localizeStrings.Get(245),
                        (int)SrcRect.Width(), (int)SrcRect.Height(),
-                       (int)DestRect.Width(), (int)DestRect.Height(),
+                       (int)(DestRect.Width() * xscale), (int)(DestRect.Height() * yscale),
                        g_settings.m_fZoomAmount, fAR*g_settings.m_fPixelRatio, 
                        g_settings.m_fPixelRatio, g_settings.m_fVerticalShift);
       CGUIMessage msg(GUI_MSG_LABEL_SET, GetID(), LABEL_ROW2);