example/src/brightness_tester.c

@@ -1,30 +1,44 @@
 #include "servicepoint.h"
 
-int main(void) {
-    UdpSocket *connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
-    //UdpSocket *connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
-    if (connection == NULL)
-        return -1;
+static UdpSocket *connection = NULL;
 
+void enable_all_pixels(void) {
     Bitmap *all_on = sp_bitmap_new_max_sized();
     sp_bitmap_fill(all_on, true);
 
-    Packet *packet = sp_bitmap_into_packet(all_on, 0, 0, COMPRESSION_CODE_UNCOMPRESSED);
-    if (packet == NULL)
-        return -1;
-
-    sp_udp_send_packet(connection, packet);
-
-    BrightnessGrid *grid = sp_brightness_grid_new(TILE_WIDTH, TILE_HEIGHT);
+    BitmapCommand *bitmapCommand = sp_cmd_bitmap_from_bitmap(all_on);
+    Packet *packet = sp_cmd_bitmap_into_packet(bitmapCommand);
+    if (packet != NULL)
+        sp_udp_send_packet(connection, packet);
+}
 
+void make_brightness_pattern(BrightnessGrid *grid) {
     ByteSlice slice = sp_brightness_grid_unsafe_data_ref(grid);
     for (size_t index = 0; index < slice.length; index++) {
         slice.start[index] = (uint8_t) (index % ((size_t) Brightness_MAX));
     }
+}
 
-    packet = sp_brightness_grid_into_packet(grid, 0, 0);
-    sp_udp_send_packet(connection, packet);
-
+void run_at_exit() {
     sp_udp_free(connection);
+}
+
+int main(void) {
+    //UdpSocket *connection = sp_udp_open_ipv4(172, 23, 42, 29, 2342);
+    connection = sp_udp_open_ipv4(127, 0, 0, 1, 2342);
+    if (connection == NULL)
+        return -1;
+    atexit(run_at_exit);
+
+    enable_all_pixels();
+
+    BrightnessGrid *grid = sp_brightness_grid_new(TILE_WIDTH, TILE_HEIGHT);
+    make_brightness_pattern(grid);
+
+    Packet *packet = sp_cmd_brightness_grid_into_packet(sp_cmd_brightness_grid_from_grid(grid));
+    if (packet == NULL)
+      return -2;
+
+    sp_udp_send_packet(connection, packet);
     return 0;
 }

include/servicepoint.h

@@ -239,6 +239,54 @@ typedef struct Bitmap Bitmap;
  */
 typedef struct BitmapCommand BitmapCommand;
 
+/**
+ * Set the brightness of individual tiles in a rectangular area of the display.
+ */
+typedef struct BrightnessGridCommand BrightnessGridCommand;
+
+/**
+ * Show text on the screen.
+ *
+ * The text is sent in the form of a 2D grid of UTF-8 encoded characters (the default encoding in rust).
+ *
+ * # Examples
+ *
+ * ```rust
+ * # use servicepoint::*;
+ * # let connection = FakeConnection;
+ * let grid = CharGrid::from("Hello,\nWorld!");
+ * connection.send_command(CharGridCommand { origin: Origin::ZERO, grid }).expect("send failed");
+ * ```
+ */
+typedef struct CharGridCommand CharGridCommand;
+
+/**
+ * Show text on the screen.
+ *
+ * The text is sent in the form of a 2D grid of [CP-437] encoded characters.
+ *
+ * <div class="warning">You probably want to use [Command::Utf8Data] instead</div>
+ *
+ * # Examples
+ *
+ * ```rust
+ * # use servicepoint::*;
+ * # let connection = FakeConnection;
+ * let grid = CharGrid::from("Hello,\nWorld!");
+ * let grid = Cp437Grid::from(&grid);
+ * connection.send_command(Cp437GridCommand{ origin: Origin::ZERO, grid }).expect("send failed");
+ * ```
+ *
+ * ```rust
+ * # use servicepoint::*;
+ * # let connection = FakeConnection;
+ * let grid = Cp437Grid::load_ascii("Hello\nWorld", 5, false).unwrap();
+ * connection.send_command(Cp437GridCommand{ origin: Origin::new(2, 2), grid }).unwrap();
+ * ```
+ * [CP-437]: https://en.wikipedia.org/wiki/Code_page_437
+ */
+typedef struct Cp437GridCommand Cp437GridCommand;
+
 /**
  * This is a type only used by cbindgen to have a type for pointers.
  */
@@ -961,6 +1009,10 @@ void sp_char_grid_set(CharGrid */*notnull*/ char_grid,
  */
 size_t sp_char_grid_width(CharGrid */*notnull*/ char_grid);
 
+BitmapCommand */*notnull*/ sp_cmd_bitmap_clone(BitmapCommand */*notnull*/ command);
+
+void sp_cmd_bitmap_free(BitmapCommand */*notnull*/ command);
+
 BitmapCommand */*notnull*/ sp_cmd_bitmap_from_bitmap(Bitmap */*notnull*/ bitmap);
 
 /**
@@ -1008,6 +1060,10 @@ void sp_cmd_bitmap_set_origin(BitmapCommand */*notnull*/ command,
                               size_t origin_x,
                               size_t origin_y);
 
+BitVecCommand */*notnull*/ sp_cmd_bitvec_clone(BitVecCommand */*notnull*/ command);
+
+void sp_cmd_bitvec_free(BitVecCommand */*notnull*/ command);
+
 DisplayBitVec *sp_cmd_bitvec_get(BitVecCommand */*notnull*/ command);
 
 CompressionCode sp_cmd_bitvec_get_compression(BitVecCommand */*notnull*/ command);
@@ -1054,6 +1110,96 @@ void sp_cmd_bitvec_set_offset(BitVecCommand */*notnull*/ command,
 void sp_cmd_bitvec_set_operation(BitVecCommand */*notnull*/ command,
                                  BinaryOperation operation);
 
+BrightnessGridCommand */*notnull*/ sp_cmd_brightness_grid_clone(BrightnessGridCommand */*notnull*/ command);
+
+void sp_cmd_brightness_grid_free(BitmapCommand */*notnull*/ command);
+
+BrightnessGridCommand */*notnull*/ sp_cmd_brightness_grid_from_grid(BrightnessGrid */*notnull*/ grid);
+
+BrightnessGrid *sp_cmd_brightness_grid_get(BrightnessGridCommand */*notnull*/ command);
+
+void sp_cmd_brightness_grid_get_origin(BrightnessGridCommand */*notnull*/ command,
+                                       size_t */*notnull*/ origin_x,
+                                       size_t */*notnull*/ origin_y);
+
+Packet *sp_cmd_brightness_grid_into_packet(BrightnessGridCommand */*notnull*/ command);
+
+TypedCommand */*notnull*/ sp_cmd_brightness_grid_into_typed(BrightnessGridCommand */*notnull*/ command);
+
+BrightnessGridCommand */*notnull*/ sp_cmd_brightness_grid_new(BrightnessGrid */*notnull*/ grid,
+                                                              size_t origin_x,
+                                                              size_t origin_y);
+
+/**
+ * Moves the provided bitmap to be contained in the command.
+ */
+void sp_cmd_brightness_grid_set(BrightnessGridCommand */*notnull*/ command,
+                                BrightnessGrid */*notnull*/ grid);
+
+void sp_cmd_brightness_grid_set_origin(BrightnessGridCommand */*notnull*/ command,
+                                       size_t origin_x,
+                                       size_t origin_y);
+
+CharGridCommand */*notnull*/ sp_cmd_char_grid_clone(CharGridCommand */*notnull*/ command);
+
+void sp_cmd_char_grid_free(BitmapCommand */*notnull*/ command);
+
+CharGridCommand */*notnull*/ sp_cmd_char_grid_from_grid(CharGrid */*notnull*/ grid);
+
+CharGrid *sp_cmd_char_grid_get(CharGridCommand */*notnull*/ command);
+
+void sp_cmd_char_grid_get_origin(CharGridCommand */*notnull*/ command,
+                                 size_t */*notnull*/ origin_x,
+                                 size_t */*notnull*/ origin_y);
+
+Packet *sp_cmd_char_grid_into_packet(CharGridCommand */*notnull*/ command);
+
+TypedCommand */*notnull*/ sp_cmd_char_grid_into_typed(CharGridCommand */*notnull*/ command);
+
+CharGridCommand */*notnull*/ sp_cmd_char_grid_new(CharGrid */*notnull*/ grid,
+                                                  size_t origin_x,
+                                                  size_t origin_y);
+
+/**
+ * Moves the provided bitmap to be contained in the command.
+ */
+void sp_cmd_char_grid_set(CharGridCommand */*notnull*/ command,
+                          CharGrid */*notnull*/ grid);
+
+void sp_cmd_char_grid_set_origin(CharGridCommand */*notnull*/ command,
+                                 size_t origin_x,
+                                 size_t origin_y);
+
+Cp437GridCommand */*notnull*/ sp_cmd_cp437_grid_clone(Cp437GridCommand */*notnull*/ command);
+
+void sp_cmd_cp437_grid_free(BitmapCommand */*notnull*/ command);
+
+Cp437GridCommand */*notnull*/ sp_cmd_cp437_grid_from_grid(Cp437Grid */*notnull*/ grid);
+
+Cp437Grid *sp_cmd_cp437_grid_get(Cp437GridCommand */*notnull*/ command);
+
+void sp_cmd_cp437_grid_get_origin(Cp437GridCommand */*notnull*/ command,
+                                  size_t */*notnull*/ origin_x,
+                                  size_t */*notnull*/ origin_y);
+
+Packet *sp_cmd_cp437_grid_into_packet(Cp437GridCommand */*notnull*/ command);
+
+TypedCommand */*notnull*/ sp_cmd_cp437_grid_into_typed(Cp437GridCommand */*notnull*/ command);
+
+Cp437GridCommand */*notnull*/ sp_cmd_cp437_grid_new(Cp437Grid */*notnull*/ grid,
+                                                    size_t origin_x,
+                                                    size_t origin_y);
+
+/**
+ * Moves the provided bitmap to be contained in the command.
+ */
+void sp_cmd_cp437_grid_set(Cp437GridCommand */*notnull*/ command,
+                           Cp437Grid */*notnull*/ grid);
+
+void sp_cmd_cp437_grid_set_origin(Cp437GridCommand */*notnull*/ command,
+                                  size_t origin_x,
+                                  size_t origin_y);
+
 /**
  * Set the brightness of individual tiles in a rectangular area of the display.
  *

src/commands/bitmap_command.rs

@@ -1,4 +1,4 @@
-use crate::{heap_move_nonnull, heap_move_ok, heap_remove};
+use crate::{heap_drop, heap_move_nonnull, heap_move_ok, heap_remove};
 use servicepoint::{
     Bitmap, BitmapCommand, CompressionCode, Origin, Packet, TypedCommand,
 };
@@ -44,6 +44,18 @@ pub unsafe extern "C" fn sp_cmd_bitmap_into_packet(
     heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_bitmap_clone(
+    command: NonNull<BitmapCommand>,
+) -> NonNull<BitmapCommand> {
+    heap_move_nonnull(unsafe { command.as_ref().clone() })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_bitmap_free(command: NonNull<BitmapCommand>) {
+    unsafe { heap_drop(command) }
+}
+
 /// Returns a pointer to the provided `BitmapCommand`.
 ///
 /// # Safety

src/commands/bitvec_command.rs

@@ -1,4 +1,4 @@
-use crate::{heap_move_nonnull, heap_move_ok, heap_remove};
+use crate::{heap_drop, heap_move_nonnull, heap_move_ok, heap_remove};
 use servicepoint::{
     BinaryOperation, BitVecCommand, CompressionCode, DisplayBitVec, Offset,
     Packet, TypedCommand,
@@ -46,6 +46,18 @@ pub unsafe extern "C" fn sp_cmd_bitvec_into_packet(
     heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_bitvec_clone(
+    command: NonNull<BitVecCommand>,
+) -> NonNull<BitVecCommand> {
+    heap_move_nonnull(unsafe { command.as_ref().clone() })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_bitvec_free(command: NonNull<BitVecCommand>) {
+    unsafe { heap_drop(command) }
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_bitvec_get(
     mut command: NonNull<BitVecCommand>,
@@ -63,6 +75,7 @@ pub unsafe extern "C" fn sp_cmd_bitvec_set(
         command.as_mut().bitvec = heap_remove(bitvec);
     }
 }
+
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_bitvec_get_offset(
     command: NonNull<BitVecCommand>,

src/commands/brightness_grid_command.rs

@@ -0,0 +1,95 @@
+use crate::{heap_drop, heap_move_nonnull, heap_move_ok, heap_remove};
+use servicepoint::{
+    BitmapCommand, BrightnessGrid, BrightnessGridCommand, Origin, Packet,
+    TypedCommand,
+};
+use std::ptr::NonNull;
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_new(
+    grid: NonNull<BrightnessGrid>,
+    origin_x: usize,
+    origin_y: usize,
+) -> NonNull<BrightnessGridCommand> {
+    heap_move_nonnull(BrightnessGridCommand {
+        grid: unsafe { heap_remove(grid) },
+        origin: Origin::new(origin_x, origin_y),
+    })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_from_grid(
+    grid: NonNull<BrightnessGrid>,
+) -> NonNull<BrightnessGridCommand> {
+    heap_move_nonnull(unsafe { heap_remove(grid) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_into_typed(
+    command: NonNull<BrightnessGridCommand>,
+) -> NonNull<TypedCommand> {
+    heap_move_nonnull(unsafe { heap_remove(command) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_into_packet(
+    command: NonNull<BrightnessGridCommand>,
+) -> *mut Packet {
+    heap_move_ok(unsafe { heap_remove(command) }.try_into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_clone(
+    command: NonNull<BrightnessGridCommand>,
+) -> NonNull<BrightnessGridCommand> {
+    heap_move_nonnull(unsafe { command.as_ref().clone() })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_free(
+    command: NonNull<BitmapCommand>,
+) {
+    unsafe { heap_drop(command) }
+}
+
+/// Moves the provided bitmap to be contained in the command.
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_set(
+    mut command: NonNull<BrightnessGridCommand>,
+    grid: NonNull<BrightnessGrid>,
+) {
+    unsafe {
+        command.as_mut().grid = heap_remove(grid);
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_get(
+    mut command: NonNull<BrightnessGridCommand>,
+) -> *mut BrightnessGrid {
+    &mut unsafe { command.as_mut() }.grid
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_get_origin(
+    command: NonNull<BrightnessGridCommand>,
+    origin_x: NonNull<usize>,
+    origin_y: NonNull<usize>,
+) {
+    unsafe {
+        let origin = &command.as_ref().origin;
+        *origin_x.as_ptr() = origin.x;
+        *origin_y.as_ptr() = origin.y;
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_brightness_grid_set_origin(
+    mut command: NonNull<BrightnessGridCommand>,
+    origin_x: usize,
+    origin_y: usize,
+) {
+    unsafe {
+        command.as_mut().origin = Origin::new(origin_x, origin_y);
+    }
+}

src/commands/char_grid_command.rs

@@ -0,0 +1,94 @@
+use crate::{heap_drop, heap_move_nonnull, heap_move_ok, heap_remove};
+use servicepoint::{
+    BitmapCommand, CharGrid, CharGridCommand, Origin, Packet, TypedCommand,
+};
+use std::ptr::NonNull;
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_new(
+    grid: NonNull<CharGrid>,
+    origin_x: usize,
+    origin_y: usize,
+) -> NonNull<CharGridCommand> {
+    heap_move_nonnull(CharGridCommand {
+        grid: unsafe { heap_remove(grid) },
+        origin: Origin::new(origin_x, origin_y),
+    })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_from_grid(
+    grid: NonNull<CharGrid>,
+) -> NonNull<CharGridCommand> {
+    heap_move_nonnull(unsafe { heap_remove(grid) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_into_typed(
+    command: NonNull<CharGridCommand>,
+) -> NonNull<TypedCommand> {
+    heap_move_nonnull(unsafe { heap_remove(command) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_into_packet(
+    command: NonNull<CharGridCommand>,
+) -> *mut Packet {
+    heap_move_ok(unsafe { heap_remove(command) }.try_into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_clone(
+    command: NonNull<CharGridCommand>,
+) -> NonNull<CharGridCommand> {
+    heap_move_nonnull(unsafe { command.as_ref().clone() })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_free(
+    command: NonNull<BitmapCommand>,
+) {
+    unsafe { heap_drop(command) }
+}
+
+/// Moves the provided bitmap to be contained in the command.
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_set(
+    mut command: NonNull<CharGridCommand>,
+    grid: NonNull<CharGrid>,
+) {
+    unsafe {
+        command.as_mut().grid = heap_remove(grid);
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_get(
+    mut command: NonNull<CharGridCommand>,
+) -> *mut CharGrid {
+    &mut unsafe { command.as_mut() }.grid
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_get_origin(
+    command: NonNull<CharGridCommand>,
+    origin_x: NonNull<usize>,
+    origin_y: NonNull<usize>,
+) {
+    unsafe {
+        let origin = &command.as_ref().origin;
+        *origin_x.as_ptr() = origin.x;
+        *origin_y.as_ptr() = origin.y;
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_char_grid_set_origin(
+    mut command: NonNull<CharGridCommand>,
+    origin_x: usize,
+    origin_y: usize,
+) {
+    unsafe {
+        command.as_mut().origin = Origin::new(origin_x, origin_y);
+    }
+}

src/commands/cp437_grid_command.rs

@@ -0,0 +1,94 @@
+use crate::{heap_drop, heap_move_nonnull, heap_move_ok, heap_remove};
+use servicepoint::{
+    BitmapCommand, Cp437Grid, Cp437GridCommand, Origin, Packet, TypedCommand,
+};
+use std::ptr::NonNull;
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_new(
+    grid: NonNull<Cp437Grid>,
+    origin_x: usize,
+    origin_y: usize,
+) -> NonNull<Cp437GridCommand> {
+    heap_move_nonnull(Cp437GridCommand {
+        grid: unsafe { heap_remove(grid) },
+        origin: Origin::new(origin_x, origin_y),
+    })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_from_grid(
+    grid: NonNull<Cp437Grid>,
+) -> NonNull<Cp437GridCommand> {
+    heap_move_nonnull(unsafe { heap_remove(grid) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_into_typed(
+    command: NonNull<Cp437GridCommand>,
+) -> NonNull<TypedCommand> {
+    heap_move_nonnull(unsafe { heap_remove(command) }.into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_into_packet(
+    command: NonNull<Cp437GridCommand>,
+) -> *mut Packet {
+    heap_move_ok(unsafe { heap_remove(command) }.try_into())
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_clone(
+    command: NonNull<Cp437GridCommand>,
+) -> NonNull<Cp437GridCommand> {
+    heap_move_nonnull(unsafe { command.as_ref().clone() })
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_free(
+    command: NonNull<BitmapCommand>,
+) {
+    unsafe { heap_drop(command) }
+}
+
+/// Moves the provided bitmap to be contained in the command.
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_set(
+    mut command: NonNull<Cp437GridCommand>,
+    grid: NonNull<Cp437Grid>,
+) {
+    unsafe {
+        command.as_mut().grid = heap_remove(grid);
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_get(
+    mut command: NonNull<Cp437GridCommand>,
+) -> *mut Cp437Grid {
+    &mut unsafe { command.as_mut() }.grid
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_get_origin(
+    command: NonNull<Cp437GridCommand>,
+    origin_x: NonNull<usize>,
+    origin_y: NonNull<usize>,
+) {
+    unsafe {
+        let origin = &command.as_ref().origin;
+        *origin_x.as_ptr() = origin.x;
+        *origin_y.as_ptr() = origin.y;
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn sp_cmd_cp437_grid_set_origin(
+    mut command: NonNull<Cp437GridCommand>,
+    origin_x: usize,
+    origin_y: usize,
+) {
+    unsafe {
+        command.as_mut().origin = Origin::new(origin_x, origin_y);
+    }
+}

src/commands/mod.rs

@@ -1,2 +1,5 @@
 mod bitmap_command;
 mod bitvec_command;
+mod brightness_grid_command;
+mod char_grid_command;
+mod cp437_grid_command;

src/typed_command.rs

@@ -1,6 +1,6 @@
 use crate::{heap_drop, heap_move_nonnull, heap_move_ok};
 use servicepoint::{
-    Brightness, BrightnessGrid, CharGrid, Cp437Grid, GlobalBrightnessCommand,
+    Brightness, GlobalBrightnessCommand,
     Packet, TypedCommand,
 };
 use std::ptr::NonNull;
@@ -72,66 +72,6 @@ pub unsafe extern "C" fn sp_command_global_brightness(
     heap_move_nonnull(GlobalBrightnessCommand::from(brightness).into())
 }
 
-/// Set the brightness of individual tiles in a rectangular area of the display.
-///
-/// The passed [BrightnessGrid] gets consumed.
-///
-/// Returns: a new [servicepoint::Command::CharBrightness] instance.
-#[no_mangle]
-pub unsafe extern "C" fn sp_command_brightness_grid(
-    x: usize,
-    y: usize,
-    grid: NonNull<BrightnessGrid>,
-) -> NonNull<TypedCommand> {
-    let grid = unsafe { *Box::from_raw(grid.as_ptr()) };
-    let result = servicepoint::BrightnessGridCommand {
-        origin: servicepoint::Origin::new(x, y),
-        grid,
-    }
-    .into();
-    heap_move_nonnull(result)
-}
-
-/// Show codepage 437 encoded text on the screen.
-///
-/// The passed [Cp437Grid] gets consumed.
-///
-/// Returns: a new [servicepoint::Cp437GridCommand] instance.
-#[no_mangle]
-pub unsafe extern "C" fn sp_command_cp437_grid(
-    x: usize,
-    y: usize,
-    grid: NonNull<Cp437Grid>,
-) -> NonNull<TypedCommand> {
-    let grid = *unsafe { Box::from_raw(grid.as_ptr()) };
-    let result = servicepoint::Cp437GridCommand {
-        origin: servicepoint::Origin::new(x, y),
-        grid,
-    }
-    .into();
-    heap_move_nonnull(result)
-}
-
-/// Show UTF-8 encoded text on the screen.
-///
-/// The passed [CharGrid] gets consumed.
-///
-/// Returns: a new [servicepoint::CharGridCommand] instance.
-#[no_mangle]
-pub unsafe extern "C" fn sp_command_char_grid(
-    x: usize,
-    y: usize,
-    grid: NonNull<CharGrid>,
-) -> NonNull<TypedCommand> {
-    let grid = unsafe { *Box::from_raw(grid.as_ptr()) };
-    let result = servicepoint::CharGridCommand {
-        origin: servicepoint::Origin::new(x, y),
-        grid,
-    }
-    .into();
-    heap_move_nonnull(result)
-}
-
 /// Deallocates a [TypedCommand].
 ///
 /// # Examples