public static TS_BITMAP_DATA CreateBitmapData(ushort left, ushort top, ushort width, ushort height)
{
Random r = new Random();
TS_BITMAP_DATA bitmap = new TS_BITMAP_DATA();
bitmap.destLeft = left;
bitmap.destTop = top;
bitmap.destRight = (ushort)(left + width - 1);
bitmap.destBottom = (ushort)(top + height - 1);
bitmap.width = width;
bitmap.height = height;
bitmap.bitsPerPixel = 16;
bitmap.Flags = TS_BITMAP_DATA_Flags_Values.NO_BITMAP_COMPRESSION_HDR;
bitmap.bitmapLength = (ushort)((width * 2 + 3) / 4 * 4 * height);
bitmap.bitmapDataStream = new byte[bitmap.bitmapLength];
for (int i = 0; i < bitmap.bitmapLength; i++)
bitmap.bitmapDataStream[i] = (byte)r.Next(0, 64);
return bitmap;
}
/// <summary>
/// Parse TS_BITMAP_DATA
/// (parser index is updated according to parsed length)
/// </summary>
/// <param name="data">data to be parsed</param>
/// <param name="currentIndex">current parser index</param>
/// <returns>TS_BITMAP_DATA</returns>
private TS_BITMAP_DATA ParseTsBitmapData(byte[] data, ref int currentIndex)
{
TS_BITMAP_DATA bitmapData = new TS_BITMAP_DATA();
// TS_BITMAP_DATA: destLeft
bitmapData.destLeft = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: destTop
bitmapData.destTop = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: destRight
bitmapData.destRight = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: destBottom
bitmapData.destBottom = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: width
bitmapData.width = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: height
bitmapData.height = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: bitsPerPixel
bitmapData.bitsPerPixel = ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: Flags
bitmapData.Flags = (TS_BITMAP_DATA_Flags_Values)ParseUInt16(data, ref currentIndex, false);
// TS_BITMAP_DATA: bitmapLength
bitmapData.bitmapLength = ParseUInt16(data, ref currentIndex, false);
// 32bpp is not supported
if (bitmapData.bitsPerPixel == ConstValue.BITS_PER_PIXEL_32)
{
throw new NotSupportedException("32bpp compressed bitmaps are not supported!");
}
// If header is absent
if (IsFlagExist((UInt16)bitmapData.Flags, (UInt16)TS_BITMAP_DATA_Flags_Values.NO_BITMAP_COMPRESSION_HDR))
{
// TS_BITMAP_DATA: bitmapDataStream
bitmapData.bitmapDataStream = GetBytes(data, ref currentIndex, bitmapData.bitmapLength);
}
else
{
// reserve current parser index
int reservedIndex = currentIndex;
// TS_BITMAP_DATA: bitmapComprHdr
bitmapData.bitmapComprHdr = ParseTsCdHeader(data, ref currentIndex);
// TS_BITMAP_DATA: bitmapDataStream
int remainLength = bitmapData.bitmapLength - (currentIndex - reservedIndex);
bitmapData.bitmapDataStream = GetBytes(data, ref currentIndex, remainLength);
}
// Decompress if bitmapData were compressed
if (IsFlagExist((UInt16)bitmapData.Flags, (UInt16)TS_BITMAP_DATA_Flags_Values.BITMAP_COMPRESSION))
{
RleDecompressor.Decompress(
bitmapData.bitmapDataStream,
(ColorDepth)bitmapData.bitsPerPixel,
bitmapData.width,
bitmapData.height);
}
return bitmapData;
}
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;
}
