void ClientConnection::ReadUltraRect(rfbFramebufferUpdateRectHeader *pfburh) {
UINT numpixels = pfburh->r.w * pfburh->r.h;
// this assumes at least one byte per pixel. Naughty.
UINT numRawBytes = numpixels * m_minPixelBytes;
UINT numCompBytes;
lzo_uint new_len;
rfbZlibHeader hdr;
// Read in the rfbZlibHeader
omni_mutex_lock l(m_bitmapdcMutex);
ReadExact((char *)&hdr, sz_rfbZlibHeader);
numCompBytes = Swap32IfLE(hdr.nBytes);
// Read in the compressed data
CheckBufferSize(numCompBytes);
ReadExact(m_netbuf, numCompBytes);
CheckZlibBufferSize(numRawBytes);
lzo1x_decompress((BYTE*)m_netbuf,numCompBytes,(BYTE*)m_zlibbuf,&new_len,NULL);
SoftCursorLockArea(pfburh->r.x, pfburh->r.y,pfburh->r.w,pfburh->r.h);
if (!Check_Rectangle_borders(pfburh->r.x, pfburh->r.y,pfburh->r.w,pfburh->r.h)) return;
if (m_DIBbits) ConvertAll(pfburh->r.w,pfburh->r.h,pfburh->r.x, pfburh->r.y,m_myFormat.bitsPerPixel/8,(BYTE *)m_zlibbuf,(BYTE *)m_DIBbits,m_si.framebufferWidth);
}
void ClientConnection::ReadUltraZip(rfbFramebufferUpdateRectHeader *pfburh,HRGN *prgn)
{
UINT nNbCacheRects = pfburh->r.x;
UINT numRawBytes = pfburh->r.y+pfburh->r.w*65535;
UINT numCompBytes;
lzo_uint new_len;
rfbZlibHeader hdr;
// Read in the rfbZlibHeader
omni_mutex_lock l(m_bitmapdcMutex);
ReadExact((char *)&hdr, sz_rfbZlibHeader);
numCompBytes = Swap32IfLE(hdr.nBytes);
// Check the net buffer
CheckBufferSize(numCompBytes);
// Read the compressed data
ReadExact((char *)m_netbuf, numCompBytes);
// Verify buffer space for cache rects list
CheckZlibBufferSize(numRawBytes+500);
lzo1x_decompress((BYTE*)m_netbuf,numCompBytes,(BYTE*)m_zlibbuf,&new_len,NULL);
BYTE* pzipbuf = m_zlibbuf;
for (UINT i = 0 ; i < nNbCacheRects; i++)
{
rfbFramebufferUpdateRectHeader surh;
memcpy((char *) &surh,pzipbuf, sz_rfbFramebufferUpdateRectHeader);
surh.r.x = Swap16IfLE(surh.r.x);
surh.r.y = Swap16IfLE(surh.r.y);
surh.r.w = Swap16IfLE(surh.r.w);
surh.r.h = Swap16IfLE(surh.r.h);
surh.encoding = Swap32IfLE(surh.encoding);
pzipbuf += sz_rfbFramebufferUpdateRectHeader;
RECT rect;
rect.left = surh.r.x;
rect.right = surh.r.x + surh.r.w;
rect.top = surh.r.y;
rect.bottom = surh.r.y + surh.r.h;
//border check
if (!Check_Rectangle_borders(rect.left,rect.top,surh.r.w,surh.r.h)) return;
SoftCursorLockArea(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
if ( surh.encoding==rfbEncodingRaw)
{
UINT numpixels = surh.r.w * surh.r.h;
if (m_DIBbits) ConvertAll(surh.r.w,surh.r.h,surh.r.x, surh.r.y,m_myFormat.bitsPerPixel/8,(BYTE *)pzipbuf,(BYTE *)m_DIBbits,m_si.framebufferWidth);
pzipbuf +=numpixels*m_myFormat.bitsPerPixel/8;
if (!m_opts.m_Directx)InvalidateRegion(&rect,prgn);
}
}
}
void ClientConnection::ReadZlibRect(rfbFramebufferUpdateRectHeader *pfburh,int XOR) {
UINT numpixels = pfburh->r.w * pfburh->r.h;
// this assumes at least one byte per pixel. Naughty.
UINT numRawBytes = numpixels * m_minPixelBytes;
UINT numCompBytes;
int inflateResult;
rfbZlibHeader hdr;
// Read in the rfbZlibHeader
ReadExact((char *)&hdr, sz_rfbZlibHeader);
numCompBytes = Swap32IfLE(hdr.nBytes);
// Read in the compressed data
CheckBufferSize(numCompBytes);
ReadExact(m_netbuf, numCompBytes);
// Verify enough buffer space for screen update.
CheckZlibBufferSize(numRawBytes);
m_decompStream.next_in = (unsigned char *)m_netbuf;
m_decompStream.avail_in = numCompBytes;
m_decompStream.next_out = m_zlibbuf;
m_decompStream.avail_out = numRawBytes;
m_decompStream.data_type = Z_BINARY;
// Insure the inflator is initialized
if ( m_decompStreamInited == false ) {
m_decompStream.total_in = 0;
m_decompStream.total_out = 0;
m_decompStream.zalloc = Z_NULL;
m_decompStream.zfree = Z_NULL;
m_decompStream.opaque = Z_NULL;
inflateResult = inflateInit( &m_decompStream );
if ( inflateResult != Z_OK ) {
vnclog.Print(0, _T("zlib inflateInit error: %d\n"), inflateResult);
return;
}
m_decompStreamInited = true;
}
// Decompress screen data
inflateResult = inflate( &m_decompStream, Z_SYNC_FLUSH );
if ( inflateResult < 0 ) {
vnclog.Print(0, _T("zlib inflate error: %d\n"), inflateResult);
return;
}
SETUP_COLOR_SHORTCUTS;
if (XOR==3)
{
mybool *maskbuffer=(mybool *)m_zlibbuf;
BYTE *color=m_zlibbuf+(((pfburh->r.w*pfburh->r.h)+7)/8);
BYTE *color2=m_zlibbuf+(((pfburh->r.w*pfburh->r.h)+7)/8)+m_myFormat.bitsPerPixel/8;
// No other threads can use bitmap DC
omni_mutex_lock l(m_bitmapdcMutex);
// This big switch is untidy but fast
switch (m_myFormat.bitsPerPixel) {
case 8:
SETXORMONOPIXELS(maskbuffer,color2, color,8, pfburh->r.x, pfburh->r.y, pfburh->r.w, pfburh->r.h)
break;
case 16:
SETXORMONOPIXELS(maskbuffer,color2, color,16, pfburh->r.x, pfburh->r.y, pfburh->r.w, pfburh->r.h)
break;
case 24:
case 32:
SETXORMONOPIXELS(maskbuffer,color2, color,32, pfburh->r.x, pfburh->r.y, pfburh->r.w, pfburh->r.h)
break;
default:
vnclog.Print(0, _T("Invalid number of bits per pixel: %d\n"), m_myFormat.bitsPerPixel);
return;
}
}
