1 files changed, 78 insertions, 0 deletions
diff --git a/netosd.c b/netosd.c
new file mode 100644
index 0000000..5bfdab6
--- /dev/null
+++ b/netosd.c
@@ -0,0 +1,78 @@
+/* 
+ * netosd.c: OSD over network
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ */
+
+#include "netosd.h"
+#include "osdworker.h"
+
+//////////////////////////////////////////////////////////////////////////////////////////////////
+cNetOSD::cNetOSD(int Left, int Top) : cOsd(Left, Top)
+{
+#ifdef DEBUG   
+   fprintf(stderr,"[ffnetdev] NetOSD: Constructor cNetOSD.\n");
+#endif
+}
+
+cNetOSD::~cNetOSD()
+{
+#ifdef DEBUG
+   fprintf(stderr,"[ffnetdev] NetOSD: Destructor cNetOSD.\n");
+#endif
+   
+   cOSDWorker::ClearScreen();    
+}
+
+eOsdError cNetOSD::CanHandleAreas(const tArea *Areas, int NumAreas)
+{
+   eOsdError Result = cOsd::CanHandleAreas(Areas, NumAreas);
+   if (Result == oeOk) {
+      if (NumAreas > 1) 		// Handle only one big area (because we support VNC colour map mode)
+         return oeTooManyAreas;		// We cannot handle multiple areas having different colour maps. We need a single colourmap. Thus, only one area.
+      int TotalMemory = 0;
+      for (int i = 0; i < NumAreas; i++) {
+         if (Areas[i].bpp != 1 && Areas[i].bpp != 2 && Areas[i].bpp != 4 && Areas[i].bpp != 8)
+            return oeBppNotSupported;
+         if ((Areas[i].Width() & (8 / Areas[i].bpp - 1)) != 0)
+            return oeWrongAlignment;
+         TotalMemory += Areas[i].Width() * Areas[i].Height() / (8 / Areas[i].bpp);
+     }
+#ifdef DEBUG
+     fprintf(stderr, "[ffnetdev] NetOSD: CanHandleAreas: OSD area size: %d bytes.\r\n", TotalMemory); 
+#endif
+     if (TotalMemory > MAXOSDMEMORY)
+        return oeOutOfMemory;
+     }
+     return Result;
+}
+
+void cNetOSD::Flush(void)
+{
+    cBitmap *Bitmap;
+
+    for (int i = 0; (Bitmap = GetBitmap(i)) != NULL; i++)
+    {
+       int x1=0, x2=0, y1=0, y2=0;
+       if (Bitmap->Dirty(x1, y1, x2, y2))   
+       {  
+  		// commit colors:
+       		int NumColors;
+       		const tColor *Colors = Bitmap->Colors(NumColors);
+       		if (Colors) {
+       			cOSDWorker::SendCMAP(NumColors , Colors);
+       		}
+#ifdef DEBUG         
+	        fprintf(stderr, "[ffnetdev] NetOSD: Left: %d, Top: %d, X0: %d, Y0: %d, Width: %d, Height: %d\n", 
+               			 Left(), Top(), Bitmap->X0(), Bitmap->Y0(), Bitmap->Width(), Bitmap->Height()); 
+       		fprintf(stderr, "[ffnetdev] NetOSD: Dirty area x1: %d, y1: %d, x2: %d, y2: %d\n",x1,y1,x2,y2);
+#endif
+       		// commit modified data:
+       		cOSDWorker::SendScreen(Bitmap->Width(), Left()+x1 +Bitmap->X0(), Top()+y1+Bitmap->Y0(), x2-x1+1, y2-y1+1, Bitmap->Data(x1, y1)); 
+	}
+        Bitmap->Clean();
+     }
+}
+
+