/// <summary>
/// fills the chosen rectangle with a color in 0x00RRGGBB format
/// </summary>
public async Task FillRect(ushort x, ushort y, ushort w, ushort h, uint color)
{
var opcode = new OpcodeData(0xA2, x, y, w, h);
opcode._wColor(color);
await _send(opcode);
}
public async Task Pad()
{
var opcode = new OpcodeData(0xAF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF);
opcode._w32(0xFFFFFFFF);
await _send(opcode);
}
/// <summary>
/// Copies a specific rectangle from the screen to somewhere else on the screen.
/// </summary>
public async Task CopyRect(ushort x, ushort y, ushort w, ushort h, ushort from_x, ushort from_y)
{
var opcode = new OpcodeData(0xA4, x, y, w, h);
opcode._w16(from_x);
opcode._w16(from_y);
await _send(opcode);
}
/// <summary>
/// Blits a bitmap. Pixel order is BGR here!
/// </summary>
public async Task BlitBitmap(ushort x, ushort y, ushort w, ushort h, byte[] data)
{
var opcode = new OpcodeData(0xA6, x, y, w, h);
opcode._write(data);
opcode._wPad(4);
await _send(opcode);
}
/// <summary>
/// Writes a 1-color bitmap, background transparent. Format is horizontal, then vertical, with rows padded out to full bytes.
/// </summary>
public async Task MaskedFill(ushort x, ushort y, ushort w, ushort h, uint color, byte[] bitmap)
{
var opcode = new OpcodeData(0xA3, x, y, w, h);
opcode._wColor(color);
opcode._write(bitmap);
opcode._wPad(4);
await _send(opcode);
}
/// <summary>
/// Writes a 2-color bitmap. Format is horizontal, then vertical, with rows padded out to full bytes.
/// </summary>
public async Task ExpandBitmap(ushort x, ushort y, ushort w, ushort h, uint bg, uint fg, byte[] bitmap)
{
Debug.Assert(bitmap.Length == (w + 7) / 8 * h);
var opcode = new OpcodeData(0xA5, x, y, w, h);
opcode._wColor(bg);
opcode._wColor(fg);
opcode._write(bitmap);
opcode._wPad(4);
await _send(opcode);
}
/// <summary>
/// Sets the mouse cursor. Probably cbitmap switches between bg and fg, mbitmap is transparency?
/// </summary>
public async Task SetMouseCursor(ushort x, ushort y, ushort w, ushort h, uint bg, uint fg, byte[] cbitmap, byte[] mbitmap)
{
Debug.Assert(cbitmap.Length == (w * h) >> 4);
Debug.Assert(mbitmap.Length == (w * h) >> 4);
var opcode = new OpcodeData(0xA9, x, y, w, h);
opcode._wColor(bg);
opcode._wColor(fg);
opcode._write(cbitmap);
opcode._write(mbitmap);
opcode._wPad(4);
await _send(opcode);
}
private async Task _send(OpcodeData opcode)
{
int toGo = (int)opcode.Data.Length;
var data = opcode.Data.ToArray();
int offset = 0;
await _beginPacket(false);
while (toGo > 0)
{
int nextBlob = toGo < (MAX_PACKET_SIZE - 16) ? toGo : (MAX_PACKET_SIZE - 16);
await _packetCache.WriteAsync(data, offset, nextBlob);
toGo -= nextBlob;
offset += nextBlob;
if (toGo != 0)
{
await _beginPacket(true);
}
}
await _endPacket();
}
