/// <summary>
/// Parse TS_FP_UPDATE_BITMAP
/// </summary>
/// <param name="updateHeader">update header</param>
/// <param name="compressionFlags">compression flags</param>
/// <param name="size">update data size(before decompression)</param>
/// <param name="updateData">update data(decompressed)</param>
/// <returns>TS_FP_UPDATE_BITMAP</returns>
private TS_FP_UPDATE_BITMAP ParseTsFpUpdateBitmap(
byte updateHeader,
compressedType_Values compressionFlags,
UInt16 size,
byte[] updateData)
{
TS_FP_UPDATE_BITMAP bitmap = new TS_FP_UPDATE_BITMAP();
// TS_FP_UPDATE_BITMAP: updateHeader
bitmap.updateHeader = updateHeader;
// TS_FP_UPDATE_BITMAP: compressionFlags
bitmap.compressionFlags = compressionFlags;
// TS_FP_UPDATE_BITMAP: size
bitmap.size = size;
// TS_FP_UPDATE_BITMAP: bitmapUpdateData
int index = 0;
bitmap.bitmapUpdateData = ParseTsUpdateBitmapData(updateData, ref index);
// Check if data length exceeded expectation
VerifyDataLength(updateData.Length, index, ConstValue.ERROR_MESSAGE_DATA_LENGTH_EXCEEDED);
return bitmap;
}
public static TS_FP_UPDATE_BITMAP CreateFPUpdateBitmap(ushort left, ushort top, ushort width, ushort height)
{
TS_FP_UPDATE_BITMAP bitmap = new TS_FP_UPDATE_BITMAP();
TS_BITMAP_DATA bdata;
bitmap.updateHeader = (byte)(((int)updateCode_Values.FASTPATH_UPDATETYPE_BITMAP & 0x0f)
| (((int)fragmentation_Value.FASTPATH_FRAGMENT_SINGLE) << 4)
| ((int)compressedType_Values.None << 6));
bitmap.compressionFlags = compressedType_Values.None;
bitmap.bitmapUpdateData.updateType = (ushort)updateType_Values.UPDATETYPE_BITMAP;
bitmap.bitmapUpdateData.numberRectangles = 1;
bitmap.bitmapUpdateData.rectangles = new TS_BITMAP_DATA[1];
bdata = CreateBitmapData(left, top, width, height);
bitmap.bitmapUpdateData.rectangles[0] = bdata;
//calculate the bitmap.size, which is the size of TS_UPDATE_BITMAP_DATA.bitmapUpdateData.
bitmap.size = (ushort)(22 + bitmap.bitmapUpdateData.rectangles[0].bitmapLength);
if (bitmap.bitmapUpdateData.rectangles[0].Flags != TS_BITMAP_DATA_Flags_Values.NO_BITMAP_COMPRESSION_HDR)
{
bitmap.size += (ushort)Marshal.SizeOf(bitmap.bitmapUpdateData.rectangles[0].bitmapComprHdr);
}
return bitmap;
}
private byte[] EncodeBitmap(TS_FP_UPDATE_BITMAP bitmapData)
{
List<byte> totalBuffer = new List<byte>();
List<byte> buffer = new List<byte>();
RdpbcgrEncoder.EncodeStructure(buffer, (ushort)bitmapData.bitmapUpdateData.updateType);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.numberRectangles);
if (bitmapData.bitmapUpdateData.rectangles != null)
{
for (int i = 0; i < bitmapData.bitmapUpdateData.rectangles.Length; ++i)
{
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].destLeft);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].destTop);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].destRight);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].destBottom);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].width);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].height);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].bitsPerPixel);
RdpbcgrEncoder.EncodeStructure(buffer, (ushort)bitmapData.bitmapUpdateData.rectangles[i].Flags);
RdpbcgrEncoder.EncodeStructure(buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapLength);
if ((bitmapData.bitmapUpdateData.rectangles[i].Flags & TS_BITMAP_DATA_Flags_Values.NO_BITMAP_COMPRESSION_HDR)
== TS_BITMAP_DATA_Flags_Values.None)
{
RdpbcgrEncoder.EncodeStructure(
buffer, (ushort)bitmapData.bitmapUpdateData.rectangles[i].bitmapComprHdr.cbCompFirstRowSize);
RdpbcgrEncoder.EncodeStructure(
buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapComprHdr.cbCompMainBodySize);
RdpbcgrEncoder.EncodeStructure(
buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapComprHdr.cbScanWidth);
RdpbcgrEncoder.EncodeStructure(
buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapComprHdr.cbUncompressedSize);
}
if (bitmapData.bitmapUpdateData.rectangles[i].bitmapDataStream != null)
{
if ((bitmapData.bitmapUpdateData.rectangles[i].Flags & TS_BITMAP_DATA_Flags_Values.BITMAP_COMPRESSION)
== TS_BITMAP_DATA_Flags_Values.BITMAP_COMPRESSION)
{
byte[] temp = serverSessionContext.Compress(bitmapData.compressionFlags, bitmapData.bitmapUpdateData.rectangles[i].bitmapDataStream);
bitmapData.bitmapUpdateData.rectangles[i].bitmapDataStream = temp;
RdpbcgrEncoder.EncodeBytes(buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapDataStream);
}
else
{
RdpbcgrEncoder.EncodeBytes(buffer, bitmapData.bitmapUpdateData.rectangles[i].bitmapDataStream);
}
}
}
}
if (bitmapData.compressionFlags != compressedType_Values.None)
{
RdpbcgrEncoder.EncodeBytes(
totalBuffer, serverSessionContext.Compress(bitmapData.compressionFlags, buffer.ToArray()));
}
else
{
RdpbcgrEncoder.EncodeBytes(totalBuffer, buffer.ToArray());
}
return totalBuffer.ToArray();
}
public static TS_FP_UPDATE_BITMAP CreateFPUpdateBitmap(TS_BITMAP_DATA data)
{
TS_FP_UPDATE_BITMAP bitmap = new TS_FP_UPDATE_BITMAP();
bitmap.updateHeader = (byte)(((int)updateCode_Values.FASTPATH_UPDATETYPE_BITMAP & 0x0f)
| (((int)fragmentation_Value.FASTPATH_FRAGMENT_SINGLE) << 4)
| ((int)compressedType_Values.None << 6));
bitmap.compressionFlags = compressedType_Values.None;
bitmap.bitmapUpdateData.updateType = (ushort)updateType_Values.UPDATETYPE_BITMAP;
bitmap.bitmapUpdateData.numberRectangles = 1;
bitmap.bitmapUpdateData.rectangles = new TS_BITMAP_DATA[1];
bitmap.bitmapUpdateData.rectangles[0] = data;
bitmap.size = (ushort)(22 + bitmap.bitmapUpdateData.rectangles[0].bitmapLength);
if (bitmap.bitmapUpdateData.rectangles[0].Flags != TS_BITMAP_DATA_Flags_Values.NO_BITMAP_COMPRESSION_HDR)
{
bitmap.size += (ushort)Marshal.SizeOf(bitmap.bitmapUpdateData.rectangles[0].bitmapComprHdr);
}
return bitmap;
}
