add functions to convert containers directly into packet

src/bitmap.rs

@@ -1,6 +1,6 @@
 use crate::byte_slice::ByteSlice;
 use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, SPBitVec};
-use servicepoint::{Bitmap, DataRef, Grid};
+use servicepoint::{Bitmap, BitmapCommand, CompressionCode, DataRef, Grid, Origin, Packet};
 use std::ptr::NonNull;
 
 /// Creates a new [Bitmap] with the specified dimensions.
@@ -199,3 +199,26 @@ pub unsafe extern "C" fn sp_bitmap_into_bitvec(
     let bitmap = unsafe { heap_remove(bitmap) };
     heap_move_nonnull(SPBitVec(bitmap.into()))
 }
+
+/// Creates a [BitmapCommand] and immediately turns that into a [Packet].
+///
+/// The provided [Bitmap] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_bitmap_into_packet(
+    bitmap: NonNull<Bitmap>,
+    x: usize,
+    y: usize,
+    compression: CompressionCode
+) -> *mut Packet {
+    let bitmap = unsafe { heap_remove(bitmap) };
+    match Packet::try_from(BitmapCommand {
+        bitmap,
+        origin: Origin::new(x, y),
+        compression,
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/bitvec.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move_nonnull, ByteSlice};
-use servicepoint::BitVecU8Msb0;
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
+use servicepoint::{BinaryOperation, BitVecCommand, BitVecU8Msb0, CompressionCode, Packet};
 use std::ptr::NonNull;
 
 /// A vector of bits
@@ -146,3 +146,27 @@ pub unsafe extern "C" fn sp_bitvec_unsafe_data_ref(
 ) -> ByteSlice {
     unsafe { ByteSlice::from_slice((*bit_vec.as_ptr()).0.as_raw_mut_slice()) }
 }
+
+/// Creates a [BitVecCommand] and immediately turns that into a [Packet].
+///
+/// The provided [SPBitVec] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_bitvec_into_packet(
+    bitvec: NonNull<SPBitVec>,
+    offset: usize,
+    operation: BinaryOperation,
+    compression: CompressionCode
+) -> *mut Packet {
+    let bitvec = unsafe { heap_remove(bitvec) }.0;
+    match Packet::try_from(BitVecCommand {
+        bitvec,
+        offset,
+        operation,
+        compression,
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/brightness_grid.rs

@@ -175,6 +175,11 @@ pub unsafe extern "C" fn sp_brightness_grid_unsafe_data_ref(
     }
 }
 
+/// Creates a [BrightnessGridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [BrightnessGrid] gets consumed.
+///
+/// Returns NULL in case of an error.
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_into_packet(
     grid: NonNull<BrightnessGrid>,

src/char_grid.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
-use servicepoint::{CharGrid, Grid};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
+use servicepoint::{CharGrid, CharGridCommand, Grid, Origin, Packet};
 use std::ptr::NonNull;
 
 /// Creates a new [CharGrid] with the specified dimensions.
@@ -132,3 +132,24 @@ pub unsafe extern "C" fn sp_char_grid_height(
 ) -> usize {
     unsafe { char_grid.as_ref().height() }
 }
+
+/// Creates a [CharGridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [CharGrid] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_char_grid_into_packet(
+    grid: NonNull<CharGrid>,
+    x: usize,
+    y: usize,
+) -> *mut Packet {
+    let grid = unsafe { heap_remove(grid) };
+    match Packet::try_from(CharGridCommand {
+        grid,
+        origin: Origin::new(x, y),
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/cp437_grid.rs

@@ -1,5 +1,5 @@
-use crate::{heap_drop, heap_move, heap_move_nonnull, ByteSlice};
-use servicepoint::{Cp437Grid, DataRef, Grid};
+use crate::{heap_drop, heap_move, heap_move_nonnull, heap_remove, ByteSlice};
+use servicepoint::{Cp437Grid, Cp437GridCommand, DataRef, Grid, Origin, Packet};
 use std::ptr::NonNull;
 
 /// Creates a new [Cp437Grid] with the specified dimensions.
@@ -132,3 +132,24 @@ pub unsafe extern "C" fn sp_cp437_grid_unsafe_data_ref(
 ) -> ByteSlice {
     unsafe { ByteSlice::from_slice((*cp437_grid.as_ptr()).data_ref_mut()) }
 }
+
+/// Creates a [Cp437GridCommand] and immediately turns that into a [Packet].
+///
+/// The provided [Cp437Grid] gets consumed.
+///
+/// Returns NULL in case of an error.
+#[no_mangle]
+pub unsafe extern "C" fn sp_cp437_grid_into_packet(
+    grid: NonNull<Cp437Grid>,
+    x: usize,
+    y: usize,
+) -> *mut Packet {
+    let grid = unsafe { heap_remove(grid) };
+    match Packet::try_from(Cp437GridCommand {
+        grid,
+        origin: Origin::new(x, y),
+    }) {
+        Ok(packet) => heap_move(packet),
+        Err(_) => std::ptr::null_mut(),
+    }
+}

src/packet.rs

@@ -108,6 +108,9 @@ pub unsafe extern "C" fn sp_packet_free(packet: NonNull<Packet>) {
     unsafe { heap_drop(packet) }
 }
 
+/// Converts u16 into [CommandCode].
+///
+/// If the provided value is not valid, false is returned and result is not changed.
 #[no_mangle]
 pub unsafe extern "C" fn sp_u16_to_command_code(
     code: u16,