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add BitmapLinear variants

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This commit is contained in:
Vinzenz Schroeter 2024-05-10 21:45:33 +02:00
parent 638249c2b9
commit 571cf73510
1 changed files with 41 additions and 6 deletions
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47
src/command.rs
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@ -94,8 +94,9 @@ impl Into<Packet> for Command {
#[derive(Debug)]
pub enum TryFromPacketError {
InvalidCommand(u16),
ExtraneousPayload(usize, usize),
UnexpectedPayloadSize(usize, usize),
ExtraneousHeaderValues,
UnsupportedSubcommand(u16),
}
fn check_empty_header(packet: &Packet) -> Option<TryFromPacketError> {
@ -110,12 +111,26 @@ fn check_empty_header(packet: &Packet) -> Option<TryFromPacketError> {
fn check_command_only(packet: &Packet) -> Option<TryFromPacketError> {
let Packet(_, payload) = packet;
if payload.len() != 0 {
Some(TryFromPacketError::ExtraneousPayload(0, payload.len()))
Some(TryFromPacketError::UnexpectedPayloadSize(0, payload.len()))
} else {
check_empty_header(packet)
}
}
fn check_linear_bitmap(packet: &Packet) -> Option<TryFromPacketError> {
let Packet(Header(_, offset, length, sub, reserved), payload) = packet;
if *reserved != 0 {
return Some(TryFromPacketError::ExtraneousHeaderValues);
}
if *sub != 0 {
return Some(TryFromPacketError::UnsupportedSubcommand(*sub));
}
if payload.len() != *length as usize {
return Some(TryFromPacketError::UnexpectedPayloadSize(*length as usize, payload.len()));
}
None
}
impl TryFrom<Packet> for Command {
type Error = TryFromPacketError;
@ -167,16 +182,36 @@ impl TryFrom<Packet> for Command {
CommandCode::BitmapLegacy => {
Ok(Command::BitmapLegacy)
}
CommandCode::BitmapLinear => { todo!() }
CommandCode::BitmapLinearWin => {
Ok(Command::BitmapLinearWin(
Origin(*a * TILE_SIZE, *b),
PixelGrid::load(*c as usize * TILE_SIZE as usize, *d as usize, payload),
))
}
CommandCode::BitmapLinearAnd => { todo!() }
CommandCode::BitmapLinearOr => { todo!() }
CommandCode::BitmapLinearXor => { todo!() }
CommandCode::BitmapLinear => {
if let Some(err) = check_linear_bitmap(&value) {
return Err(err);
}
Ok(Command::BitmapLinear(*a, BitVec::load(payload)))
}
CommandCode::BitmapLinearAnd => {
if let Some(err) = check_linear_bitmap(&value) {
return Err(err);
}
Ok(Command::BitmapLinearAnd(*a, BitVec::load(payload)))
}
CommandCode::BitmapLinearOr => {
if let Some(err) = check_linear_bitmap(&value) {
return Err(err);
}
Ok(Command::BitmapLinearOr(*a, BitVec::load(payload)))
}
CommandCode::BitmapLinearXor => {
if let Some(err) = check_linear_bitmap(&value) {
return Err(err);
}
Ok(Command::BitmapLinearXor(*a, BitVec::load(payload)))
}
}
}
}