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/*
* 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();
}
}
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