26 changed files with 1075 additions and 763 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -106,9 +106,9 @@ dependencies = [
 [[package]]
 name = "cbindgen"
-version = "0.29.0"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "975982cdb7ad6a142be15bdf84aea7ec6a9e5d4d797c004d43185b24cfe4e684"
+checksum = "eadd868a2ce9ca38de7eeafdcec9c7065ef89b42b32f0839278d55f35c54d1ff"
 dependencies = [
 "clap",
 "heck",
@ -263,9 +263,9 @@ checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
 [[package]]
 name = "heck"
-version = "0.5.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 [[package]]
 name = "indexmap"
@ -368,12 +368,6 @@ version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
 [[package]]
 name = "paste"
 version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
 [[package]]
 name = "pkg-config"
 version = "0.3.32"
@ -546,7 +540,6 @@ version = "0.15.0"
 dependencies = [
 "cbindgen",
 "env_logger",
 "paste",
 "servicepoint",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@ -8,13 +8,14 @@ description = "C bindings for the servicepoint crate."
 homepage = "https://docs.rs/crate/servicepoint_binding_c"
 repository = "https://git.berlin.ccc.de/servicepoint/servicepoint"
 readme = "README.md"
 links = "servicepoint"
 keywords = ["cccb", "cccb-servicepoint", "cbindgen"]
 [lib]
 crate-type = ["staticlib", "cdylib", "rlib"]
 [build-dependencies]
-cbindgen = "0.29.0"
+cbindgen = "0.28.0"
 [dependencies.servicepoint]
 version = "0.15.0"
@ -24,9 +25,6 @@ default-features = false
 version = "0.11.8"
 optional = true
 [dependencies]
 paste = "1.0.15"
 [features]
 all_compressions = ["servicepoint/all_compressions"]
 default = ["all_compressions", "servicepoint/default", "env_logger"]
--- a/build.rs
+++ b/build.rs
@ -0,0 +1,58 @@
 //! Build script generating the header for the `servicepoint` C library.
 //!
 //! When the environment variable `SERVICEPOINT_HEADER_OUT` is set, the header is copied there from
 //! the out directory. This can be used to use the build script as a command line tool from other
 //! build tools.
 use std::{env, fs};
 fn main() {
    let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
    println!("cargo::rerun-if-changed={crate_dir}/src");
    println!("cargo::rerun-if-changed={crate_dir}/build.rs");
    println!("cargo::rerun-if-changed={crate_dir}/Cargo.toml");
    println!("cargo::rerun-if-changed={crate_dir}/Cargo.lock");
    println!("cargo::rerun-if-changed={crate_dir}/cbindgen.toml");
    println!("cargo::rerun-if-env-changed=SERVICEPOINT_HEADER_OUT");
    let config =
        cbindgen::Config::from_file(crate_dir.clone() + "/cbindgen.toml")
            .unwrap();
    let output_dir = env::var("OUT_DIR").unwrap();
    let header_file = output_dir.clone() + "/servicepoint.h";
    let bindings = match cbindgen::generate_with_config(crate_dir, config) {
        Ok(bindings) => bindings,
        Err(e) => {
            eprintln!("cargo:warning=Servicepoint header could not be generated: {e:?}");
            return;
        }
    };
    bindings.write_to_file(&header_file);
    println!("cargo:include={output_dir}");
    if let Ok(header_out) = env::var("SERVICEPOINT_HEADER_OUT") {
        let header_copy = header_out + "/servicepoint.h";
        if fs::exists(&header_copy).unwrap_or(false) {
            // check if content changed to prevent rebuild of dependents if not
            let mut bindings_text = Vec::new();
            bindings.write(&mut bindings_text);
            match fs::read(&header_copy) {
                Ok(old_content) if old_content == bindings_text => {
                    println!("cargo:warning=Header did not change, not updating timestamp");
                    return;
                }
                _  => {}
            };
        }
        // file does not exist or is different
        println!("cargo:warning=Copying header to {header_copy}");
        fs::copy(header_file, &header_copy).unwrap();
        println!("cargo::rerun-if-changed={header_copy}");
    }
 }
--- a/cbindgen.toml
+++ b/cbindgen.toml
@ -30,8 +30,7 @@ include = ["servicepoint", "std"]
 extra_bindings = ["servicepoint", "servicepoint_binding_c"]
 [parse.expand]
-crates = ["servicepoint_binding_c", "paste"]
+features = ["full"]
 features = []
 [export]
 include = []
--- a/generate-binding.sh
+++ b/generate-binding.sh
@ -3,4 +3,4 @@ set -e
 SCRIPT_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
-cbindgen --config $SCRIPT_PATH/cbindgen.toml --crate servicepoint_binding_c --output $SCRIPT_PATH/include/servicepoint.h
+SERVICEPOINT_HEADER_OUT="$SCRIPT_PATH/include" cargo build --release
--- a/include/servicepoint.h
+++ b/include/servicepoint.h
@ -1,7 +1,7 @@
 #ifndef SERVICEPOINT_BINDINGS_C
 #define SERVICEPOINT_BINDINGS_C
-/* Generated with cbindgen:0.29.0 */
+/* Generated with cbindgen:0.28.0 */
 /* Warning, this file is autogenerated by cbindgen. Don't modify this manually. */
@ -640,34 +640,24 @@ extern "C" {
 void init_env_logger(void);
 /**
- *Clones a [Bitmap] instance.
+ * Clones a [Bitmap].
 */
-struct Bitmap */*notnull*/ sp_bitmap_clone(struct Bitmap */*notnull*/ instance);
+struct Bitmap */*notnull*/ sp_bitmap_clone(struct Bitmap */*notnull*/ bitmap);
 /**
 * Calls [`servicepoint::Bitmap::data_ref_mut`].
 *
 * Gets an unsafe reference to the data of the [Bitmap] instance.
 *
 * The returned memory is valid for the lifetime of the bitmap.
 */
 struct ByteSlice sp_bitmap_data_ref_mut(struct Bitmap */*notnull*/ instance);
 /**
 * Calls [`servicepoint::Bitmap::fill`].
 *
 * Sets the state of all pixels in the [Bitmap].
 *
 * # Arguments
 *
 * - `bitmap`: instance to write to
 * - `value`: the value to set all pixels to
 */
-void sp_bitmap_fill(struct Bitmap */*notnull*/ instance, bool value);
+void sp_bitmap_fill(struct Bitmap */*notnull*/ bitmap, bool value);
 /**
- *Deallocates a [Bitmap] instance.
+ * Deallocates a [Bitmap].
 */
-void sp_bitmap_free(struct Bitmap */*notnull*/ instance);
+void sp_bitmap_free(struct Bitmap */*notnull*/ bitmap);
 /**
 * Tries to convert the BitVec to a Bitmap.
@ -679,29 +669,30 @@ void sp_bitmap_free(struct Bitmap */*notnull*/ instance);
 struct Bitmap *sp_bitmap_from_bitvec(size_t width, BitVec */*notnull*/ bitvec);
 /**
- * Calls [`servicepoint::Bitmap::get`].
+ * Gets the current value at the specified position in the [Bitmap].
 *
 * Gets the current value at the specified position.
 *
 * # Arguments
 *
 * - `bitmap`: instance to read from
 * - `x` and `y`: position of the cell to read
 *
 * # Panics
 *
 * - when accessing `x` or `y` out of bounds
 */
-bool sp_bitmap_get(struct Bitmap */*notnull*/ instance, size_t x, size_t y);
+bool sp_bitmap_get(struct Bitmap */*notnull*/ bitmap, size_t x, size_t y);
 /**
- * Calls [`servicepoint::Bitmap::height`].
+ * Gets the height in pixels of the [Bitmap] instance.
 *
- * Gets the height in pixels.
+ * # Arguments
 *
 * - `bitmap`: instance to read from
 */
-size_t sp_bitmap_height(struct Bitmap */*notnull*/ instance);
+size_t sp_bitmap_height(struct Bitmap */*notnull*/ bitmap);
 /**
- * Consumes the Bitmap and returns the contained BitVec.
+ * Consumes the Bitmap and returns the contained BitVec
 */
 BitVec */*notnull*/ sp_bitmap_into_bitvec(struct Bitmap */*notnull*/ bitmap);
@ -766,12 +757,11 @@ struct Bitmap *sp_bitmap_new(size_t width, size_t height);
 struct Bitmap */*notnull*/ sp_bitmap_new_max_sized(void);
 /**
- * Calls [`servicepoint::Bitmap::set`].
+ * Sets the value of the specified position in the [Bitmap].
 *
 * Sets the value of the specified position.
 *
 * # Arguments
 *
 * - `bitmap`: instance to write to
 * - `x` and `y`: position of the cell
 * - `value`: the value to write to the cell
 *
@ -779,52 +769,59 @@ struct Bitmap */*notnull*/ sp_bitmap_new_max_sized(void);
 *
 * - when accessing `x` or `y` out of bounds
 */
-void sp_bitmap_set(struct Bitmap */*notnull*/ instance,
+void sp_bitmap_set(struct Bitmap */*notnull*/ bitmap,
                   size_t x,
                   size_t y,
                   bool value);
 /**
- * Calls [`servicepoint::Bitmap::width`].
+ * Gets an unsafe reference to the data of the [Bitmap] instance.
 *
- * Gets the width in pixels.
+ * The returned memory is valid for the lifetime of the bitmap.
 */
-size_t sp_bitmap_width(struct Bitmap */*notnull*/ instance);
+struct ByteSlice sp_bitmap_unsafe_data_ref(struct Bitmap */*notnull*/ bitmap);
 /**
- * Calls [`servicepoint::DisplayBitVec::as_raw_mut_slice`].
+ * Gets the width in pixels of the [Bitmap] instance.
 *
 * Gets an unsafe reference to the data of the [DisplayBitVec] instance.
 *
 * The returned memory is valid for the lifetime of the bitvec.
 */
 struct ByteSlice sp_bitvec_as_raw_mut_slice(BitVec */*notnull*/ instance);
 /**
 *Clones a [DisplayBitVec] instance.
 */
 BitVec */*notnull*/ sp_bitvec_clone(BitVec */*notnull*/ instance);
 /**
 * Calls [`servicepoint::DisplayBitVec::fill`].
 *
 * Sets the value of all bits.
 *
 * # Arguments
 *
 * - `bitmap`: instance to read from
 *
 * # Panics
 *
 * - when `bitmap` is NULL
 *
 * # Safety
 *
 * The caller has to make sure that:
 *
 * - `bitmap` points to a valid [Bitmap]
 */
 size_t sp_bitmap_width(struct Bitmap */*notnull*/ bitmap);
 /**
 * Clones a [DisplayBitVec].
 */
 BitVec */*notnull*/ sp_bitvec_clone(BitVec */*notnull*/ bit_vec);
 /**
 * Sets the value of all bits in the [DisplayBitVec].
 *
 * # Arguments
 *
 * - `bit_vec`: instance to write to
 * - `value`: the value to set all bits to
 */
-void sp_bitvec_fill(BitVec */*notnull*/ instance, bool value);
+void sp_bitvec_fill(BitVec */*notnull*/ bit_vec, bool value);
 /**
- *Deallocates a [DisplayBitVec] instance.
+ * Deallocates a [DisplayBitVec].
 */
-void sp_bitvec_free(BitVec */*notnull*/ instance);
+void sp_bitvec_free(BitVec */*notnull*/ bit_vec);
 /**
- * Calls [`servicepoint::DisplayBitVec::get`].
+ * Gets the value of a bit from the [DisplayBitVec].
 *
 * Gets the value of a bit.
 *
 * # Arguments
 *
@ -837,7 +834,7 @@ void sp_bitvec_free(BitVec */*notnull*/ instance);
 *
 * - when accessing `index` out of bounds
 */
-bool sp_bitvec_get(BitVec */*notnull*/ instance, size_t index);
+bool sp_bitvec_get(BitVec */*notnull*/ bit_vec, size_t index);
 /**
 * Creates a [BitVecCommand] and immediately turns that into a [Packet].
@ -852,18 +849,22 @@ struct Packet *sp_bitvec_into_packet(BitVec */*notnull*/ bitvec,
                                     CompressionCode compression);
 /**
 * Calls [`servicepoint::DisplayBitVec::is_empty`].
 *
 * Returns true if length is 0.
 *
 * # Arguments
 *
 * - `bit_vec`: instance to write to
 */
-bool sp_bitvec_is_empty(BitVec */*notnull*/ instance);
+bool sp_bitvec_is_empty(BitVec */*notnull*/ bit_vec);
 /**
- * Calls [`servicepoint::DisplayBitVec::len`].
+ * Gets the length of the [DisplayBitVec] in bits.
 *
- * Gets the length in bits.
+ * # Arguments
 *
 * - `bit_vec`: instance to write to
 */
-size_t sp_bitvec_len(BitVec */*notnull*/ instance);
+size_t sp_bitvec_len(BitVec */*notnull*/ bit_vec);
 /**
 * Interpret the data as a series of bits and load then into a new [DisplayBitVec] instance.
@ -888,12 +889,11 @@ BitVec */*notnull*/ sp_bitvec_load(struct ByteSlice data);
 BitVec */*notnull*/ sp_bitvec_new(size_t size);
 /**
- * Calls [`servicepoint::DisplayBitVec::set`].
+ * Sets the value of a bit in the [DisplayBitVec].
 *
 * Sets the value of a bit.
 *
 * # Arguments
 *
 * - `bit_vec`: instance to write to
 * - `index`: the bit index to edit
 * - `value`: the value to set the bit to
 *
@ -901,46 +901,46 @@ BitVec */*notnull*/ sp_bitvec_new(size_t size);
 *
 * - when accessing `index` out of bounds
 */
-void sp_bitvec_set(BitVec */*notnull*/ instance, size_t index, bool value);
+void sp_bitvec_set(BitVec */*notnull*/ bit_vec, size_t index, bool value);
 /**
- *Clones a [BrightnessGrid] instance.
+ * Gets an unsafe reference to the data of the [DisplayBitVec] instance.
 */
 BrightnessGrid */*notnull*/ sp_brightness_grid_clone(BrightnessGrid */*notnull*/ instance);
 /**
 * Calls [`servicepoint::BrightnessGrid::data_ref_mut`].
 *
- * Gets an unsafe reference to the data of the instance.
+ * The returned memory is valid for the lifetime of the bitvec.
 *
 * The returned memory is valid for the lifetime of the grid.
 */
 struct ByteSlice sp_brightness_grid_data_ref_mut(BrightnessGrid */*notnull*/ instance);
 /**
 * Calls [`servicepoint::BrightnessGrid::fill`].
 *
 * Sets the value of all cells.
 *
 * # Arguments
 *
 * - `bit_vec`: instance to write to
 */
 struct ByteSlice sp_bitvec_unsafe_data_ref(BitVec */*notnull*/ bit_vec);
 /**
 * Clones a [BrightnessGrid].
 */
 BrightnessGrid */*notnull*/ sp_brightness_grid_clone(BrightnessGrid */*notnull*/ grid);
 /**
 * Sets the value of all cells in the [BrightnessGrid].
 *
 * # Arguments
 *
 * - `brightness_grid`: instance to write to
 * - `value`: the value to set all cells to
 */
-void sp_brightness_grid_fill(BrightnessGrid */*notnull*/ instance,
+void sp_brightness_grid_fill(BrightnessGrid */*notnull*/ brightness_grid,
                             Brightness value);
 /**
- *Deallocates a [BrightnessGrid] instance.
+ * Deallocates a [BrightnessGrid].
 */
-void sp_brightness_grid_free(BrightnessGrid */*notnull*/ instance);
+void sp_brightness_grid_free(BrightnessGrid */*notnull*/ brightness_grid);
 /**
 * Calls [`servicepoint::BrightnessGrid::get`].
 *
 * Gets the current value at the specified position.
 *
 * # Arguments
 *
 * - `brightness_grid`: instance to read from
 * - `x` and `y`: position of the cell to read
 *
 * returns: value at position
@ -948,16 +948,20 @@ void sp_brightness_grid_free(BrightnessGrid */*notnull*/ instance);
 * # Panics
 * - When accessing `x` or `y` out of bounds.
 */
-Brightness sp_brightness_grid_get(BrightnessGrid */*notnull*/ instance,
+Brightness sp_brightness_grid_get(BrightnessGrid */*notnull*/ brightness_grid,
                                  size_t x,
                                  size_t y);
 /**
- * Calls [`servicepoint::BrightnessGrid::height`].
+ * Gets the height of the [BrightnessGrid] instance.
 *
- * Gets the height of the grid.
+ * # Arguments
 *
 * - `brightness_grid`: instance to read from
 *
 * returns: height
 */
-size_t sp_brightness_grid_height(BrightnessGrid */*notnull*/ instance);
+size_t sp_brightness_grid_height(BrightnessGrid */*notnull*/ brightness_grid);
 /**
 * Creates a [BrightnessGridCommand] and immediately turns that into a [Packet].
@ -1003,12 +1007,11 @@ BrightnessGrid *sp_brightness_grid_load(size_t width,
 BrightnessGrid */*notnull*/ sp_brightness_grid_new(size_t width, size_t height);
 /**
- * Calls [`servicepoint::BrightnessGrid::set`].
+ * Sets the value of the specified position in the [BrightnessGrid].
 *
 * Sets the value of the specified position.
 *
 * # Arguments
 *
 * - `brightness_grid`: instance to write to
 * - `x` and `y`: position of the cell
 * - `value`: the value to write to the cell
 *
@ -1018,61 +1021,77 @@ BrightnessGrid */*notnull*/ sp_brightness_grid_new(size_t width, size_t height);
 *
 * - When accessing `x` or `y` out of bounds.
 */
-void sp_brightness_grid_set(BrightnessGrid */*notnull*/ instance,
+void sp_brightness_grid_set(BrightnessGrid */*notnull*/ brightness_grid,
                            size_t x,
                            size_t y,
                            Brightness value);
 /**
- * Calls [`servicepoint::BrightnessGrid::width`].
+ * Gets an unsafe reference to the data of the [BrightnessGrid] instance.
 *
- * Gets the width of the grid.
+ * The returned memory is valid for the lifetime of the brightness grid.
 */
 size_t sp_brightness_grid_width(BrightnessGrid */*notnull*/ instance);
 /**
 *Clones a [CharGrid] instance.
 */
 CharGrid */*notnull*/ sp_char_grid_clone(CharGrid */*notnull*/ instance);
 /**
 * Calls [`servicepoint::CharGrid::fill`].
 *
 * Sets the value of all cells in the grid.
 *
 * # Arguments
 *
- * - `value`: the value to set all cells to
+ * - `brightness_grid`: instance to read from
 * - when providing values that cannot be converted to Rust's `char`.
 */
 void sp_char_grid_fill(CharGrid */*notnull*/ instance, uint32_t value);
 /**
 *Deallocates a [CharGrid] instance.
 */
 void sp_char_grid_free(CharGrid */*notnull*/ instance);
 /**
 * Calls [`servicepoint::CharGrid::get`].
 *
 * returns: slice of bytes underlying the `brightness_grid`.
 */
 struct ByteSlice sp_brightness_grid_unsafe_data_ref(BrightnessGrid */*notnull*/ brightness_grid);
 /**
 * Gets the width of the [BrightnessGrid] instance.
 *
 * # Arguments
 *
 * - `brightness_grid`: instance to read from
 *
 * returns: width
 */
 size_t sp_brightness_grid_width(BrightnessGrid */*notnull*/ brightness_grid);
 /**
 * Clones a [CharGrid].
 */
 CharGrid */*notnull*/ sp_char_grid_clone(CharGrid */*notnull*/ grid);
 /**
 * Sets the value of all cells in the [CharGrid].
 *
 * # Arguments
 *
 * - `char_grid`: instance to write to
 * - `value`: the value to set all cells to
 */
 void sp_char_grid_fill(CharGrid */*notnull*/ char_grid, uint32_t value);
 /**
 * Deallocates a [CharGrid].
 */
 void sp_char_grid_free(CharGrid */*notnull*/ char_grid);
 /**
 * Returns the current value at the specified position.
 *
 * # Arguments
 *
 * - `char_grid`: instance to read from
 * - `x` and `y`: position of the cell to read
 *
 * # Panics
 *
 * - when accessing `x` or `y` out of bounds
 */
-uint32_t sp_char_grid_get(CharGrid */*notnull*/ instance, size_t x, size_t y);
+uint32_t sp_char_grid_get(CharGrid */*notnull*/ char_grid, size_t x, size_t y);
 /**
- * Calls [`servicepoint::CharGrid::height`].
+ * Gets the height of the [CharGrid] instance.
 *
- * Gets the height of the grid.
+ * # Arguments
 *
 * - `char_grid`: instance to read from
 */
-size_t sp_char_grid_height(CharGrid */*notnull*/ instance);
+size_t sp_char_grid_height(CharGrid */*notnull*/ char_grid);
 /**
 * Creates a [CharGridCommand] and immediately turns that into a [Packet].
@ -1109,12 +1128,11 @@ CharGrid *sp_char_grid_load(size_t width, size_t height, struct ByteSlice data);
 CharGrid */*notnull*/ sp_char_grid_new(size_t width, size_t height);
 /**
- * Calls [`servicepoint::CharGrid::set`].
+ * Sets the value of the specified position in the [CharGrid].
 *
 * Sets the value of the specified position in the grid.
 *
 * # Arguments
 *
 * - `char_grid`: instance to write to
 * - `x` and `y`: position of the cell
 * - `value`: the value to write to the cell
 *
@ -1123,29 +1141,32 @@ CharGrid */*notnull*/ sp_char_grid_new(size_t width, size_t height);
 * # Panics
 *
 * - when accessing `x` or `y` out of bounds
 * - when providing values that cannot be converted to Rust's `char`.
 */
-void sp_char_grid_set(CharGrid */*notnull*/ instance,
+void sp_char_grid_set(CharGrid */*notnull*/ char_grid,
                      size_t x,
                      size_t y,
                      uint32_t value);
 /**
- * Calls [`servicepoint::CharGrid::width`].
+ * Gets the width of the [CharGrid] instance.
 *
- * Gets the width of the grid.
+ * # Arguments
 *
 * - `char_grid`: instance to read from
 */
-size_t sp_char_grid_width(CharGrid */*notnull*/ instance);
+size_t sp_char_grid_width(CharGrid */*notnull*/ char_grid);
 /**
- *Clones a [BitmapCommand] instance.
+ * Clones an [BitmapCommand] instance.
 *
 * returns: a new [BitmapCommand] instance.
 */
-struct BitmapCommand */*notnull*/ sp_cmd_bitmap_clone(struct BitmapCommand */*notnull*/ instance);
+struct BitmapCommand */*notnull*/ sp_cmd_bitmap_clone(struct BitmapCommand */*notnull*/ command);
 /**
- *Deallocates a [BitmapCommand] instance.
+ * Deallocates a [BitmapCommand] instance.
 */
-void sp_cmd_bitmap_free(struct BitmapCommand */*notnull*/ instance);
+void sp_cmd_bitmap_free(struct BitmapCommand */*notnull*/ command);
 /**
 * Move the provided [Bitmap] into a new [BitmapCommand],
@ -1216,14 +1237,16 @@ void sp_cmd_bitmap_set_origin(struct BitmapCommand */*notnull*/ command,
 struct Packet *sp_cmd_bitmap_try_into_packet(struct BitmapCommand */*notnull*/ command);
 /**
- *Clones a [BitVecCommand] instance.
+ * Clones an [BitVecCommand] instance.
 *
 * returns: a new [BitVecCommand] instance.
 */
-struct BitVecCommand */*notnull*/ sp_cmd_bitvec_clone(struct BitVecCommand */*notnull*/ instance);
+struct BitVecCommand */*notnull*/ sp_cmd_bitvec_clone(struct BitVecCommand */*notnull*/ command);
 /**
- *Deallocates a [BitVecCommand] instance.
+ * Deallocates a [BitVecCommand].
 */
-void sp_cmd_bitvec_free(struct BitVecCommand */*notnull*/ instance);
+void sp_cmd_bitvec_free(struct BitVecCommand */*notnull*/ command);
 /**
 * Returns a pointer to the [BitVec] contained in the [BitVecCommand].
@ -1296,14 +1319,13 @@ void sp_cmd_bitvec_set_operation(struct BitVecCommand */*notnull*/ command,
 struct Packet *sp_cmd_bitvec_try_into_packet(struct BitVecCommand */*notnull*/ command);
 /**
- *Clones a [GlobalBrightnessCommand] instance.
+ * Clones an [GlobalBrightnessCommand] instance.
 *
 * returns: a new [GlobalBrightnessCommand] instance.
 */
-struct GlobalBrightnessCommand */*notnull*/ sp_cmd_brightness_global_clone(struct GlobalBrightnessCommand */*notnull*/ instance);
+struct GlobalBrightnessCommand */*notnull*/ sp_cmd_brightness_global_clone(struct GlobalBrightnessCommand */*notnull*/ command);
-/**
+void sp_cmd_brightness_global_free(struct BitmapCommand */*notnull*/ command);
 *Deallocates a [GlobalBrightnessCommand] instance.
 */
 void sp_cmd_brightness_global_free(struct GlobalBrightnessCommand */*notnull*/ instance);
 Brightness sp_cmd_brightness_global_get(struct GlobalBrightnessCommand */*notnull*/ command);
@ -1323,14 +1345,16 @@ void sp_cmd_brightness_global_set(struct GlobalBrightnessCommand */*notnull*/ co
                                  Brightness brightness);
 /**
- *Clones a [BrightnessGridCommand] instance.
+ * Clones an [BrightnessGridCommand] instance.
 *
 * returns: a new [BrightnessGridCommand] instance.
 */
-struct BrightnessGridCommand */*notnull*/ sp_cmd_brightness_grid_clone(struct BrightnessGridCommand */*notnull*/ instance);
+struct BrightnessGridCommand */*notnull*/ sp_cmd_brightness_grid_clone(struct BrightnessGridCommand */*notnull*/ command);
 /**
- *Deallocates a [BrightnessGridCommand] instance.
+ * Deallocates a [BitmapCommand].
 */
-void sp_cmd_brightness_grid_free(struct BrightnessGridCommand */*notnull*/ instance);
+void sp_cmd_brightness_grid_free(struct BitmapCommand */*notnull*/ command);
 /**
 * Moves the provided [BrightnessGrid] into a new [BrightnessGridCommand],
@ -1382,14 +1406,16 @@ void sp_cmd_brightness_grid_set_origin(struct BrightnessGridCommand */*notnull*/
                                       size_t origin_y);
 /**
- *Clones a [CharGridCommand] instance.
+ * Clones an [CharGridCommand] instance.
 *
 * returns: a new [CharGridCommand] instance.
 */
-struct CharGridCommand */*notnull*/ sp_cmd_char_grid_clone(struct CharGridCommand */*notnull*/ instance);
+struct CharGridCommand */*notnull*/ sp_cmd_char_grid_clone(struct CharGridCommand */*notnull*/ command);
 /**
- *Deallocates a [CharGridCommand] instance.
+ * Deallocates a [BitmapCommand].
 */
-void sp_cmd_char_grid_free(struct CharGridCommand */*notnull*/ instance);
+void sp_cmd_char_grid_free(struct BitmapCommand */*notnull*/ command);
 /**
 * Moves the provided [CharGrid] into a new [CharGridCommand],
@ -1441,9 +1467,9 @@ void sp_cmd_char_grid_set_origin(struct CharGridCommand */*notnull*/ command,
 struct Packet *sp_cmd_char_grid_try_into_packet(struct CharGridCommand */*notnull*/ command);
 /**
- *Deallocates a [ClearCommand] instance.
+ * Deallocates a [ClearCommand].
 */
-void sp_cmd_clear_free(struct ClearCommand */*notnull*/ instance);
+void sp_cmd_clear_free(struct ClearCommand */*notnull*/ command);
 /**
 * Set all pixels to the off state.
@ -1455,14 +1481,16 @@ void sp_cmd_clear_free(struct ClearCommand */*notnull*/ instance);
 struct ClearCommand */*notnull*/ sp_cmd_clear_new(void);
 /**
- *Clones a [Cp437GridCommand] instance.
+ * Clones an [Cp437GridCommand] instance.
 *
 * returns: a new [Cp437GridCommand] instance.
 */
-struct Cp437GridCommand */*notnull*/ sp_cmd_cp437_grid_clone(struct Cp437GridCommand */*notnull*/ instance);
+struct Cp437GridCommand */*notnull*/ sp_cmd_cp437_grid_clone(struct Cp437GridCommand */*notnull*/ command);
 /**
- *Deallocates a [Cp437GridCommand] instance.
+ * Deallocates a [Cp437GridCommand].
 */
-void sp_cmd_cp437_grid_free(struct Cp437GridCommand */*notnull*/ instance);
+void sp_cmd_cp437_grid_free(struct BitmapCommand */*notnull*/ command);
 /**
 * Moves the provided [Cp437Grid] into a new [Cp437GridCommand],
@ -1525,9 +1553,9 @@ void sp_cmd_cp437_grid_set_origin(struct Cp437GridCommand */*notnull*/ command,
 struct Packet *sp_cmd_cp437_grid_try_into_packet(struct Cp437GridCommand */*notnull*/ command);
 /**
- *Deallocates a [FadeOutCommand] instance.
+ * Deallocates a [FadeOutCommand].
 */
-void sp_cmd_fade_out_free(struct FadeOutCommand */*notnull*/ instance);
+void sp_cmd_fade_out_free(struct ClearCommand */*notnull*/ command);
 /**
 * A yet-to-be-tested command.
@ -1575,9 +1603,9 @@ struct Packet *sp_cmd_generic_into_packet(struct Command command);
 struct Command sp_cmd_generic_try_from_packet(struct Packet */*notnull*/ packet);
 /**
- *Deallocates a [HardResetCommand] instance.
+ * Deallocates a [HardResetCommand].
 */
-void sp_cmd_hard_reset_free(struct HardResetCommand */*notnull*/ instance);
+void sp_cmd_hard_reset_free(struct ClearCommand */*notnull*/ command);
 /**
 * Kills the udp daemon on the display, which usually results in a restart.
@ -1589,50 +1617,49 @@ void sp_cmd_hard_reset_free(struct HardResetCommand */*notnull*/ instance);
 struct HardResetCommand */*notnull*/ sp_cmd_hard_reset_new(void);
 /**
- * Calls [`servicepoint::Cp437Grid::data_ref_mut`].
+ * Clones a [Cp437Grid].
 *
 * Gets an unsafe reference to the data of the grid.
 *
 * The returned memory is valid for the lifetime of the instance.
 */
-struct ByteSlice sp_cp437_data_ref_mut(Cp437Grid */*notnull*/ instance);
+Cp437Grid */*notnull*/ sp_cp437_grid_clone(Cp437Grid */*notnull*/ grid);
 /**
- * Calls [`servicepoint::Cp437Grid::fill`].
+ * Sets the value of all cells in the [Cp437Grid].
 *
 * Sets the value of all cells in the grid.
 *
 * # Arguments
 *
 * - `cp437_grid`: instance to write to
 * - `value`: the value to set all cells to
 */
-void sp_cp437_fill(Cp437Grid */*notnull*/ instance, uint8_t value);
+void sp_cp437_grid_fill(Cp437Grid */*notnull*/ cp437_grid, uint8_t value);
 /**
 * Deallocates a [Cp437Grid].
 */
 void sp_cp437_grid_free(Cp437Grid */*notnull*/ cp437_grid);
 /**
 * Calls [`servicepoint::Cp437Grid::get`].
 *
 * Gets the current value at the specified position.
 *
 * # Arguments
 *
 * - `cp437_grid`: instance to read from
 * - `x` and `y`: position of the cell to read
 *
 * # Panics
 *
 * - when accessing `x` or `y` out of bounds
 */
-uint8_t sp_cp437_get(Cp437Grid */*notnull*/ instance, size_t x, size_t y);
+uint8_t sp_cp437_grid_get(Cp437Grid */*notnull*/ cp437_grid,
                          size_t x,
                          size_t y);
 /**
- *Clones a [Cp437Grid] instance.
+ * Gets the height of the [Cp437Grid] instance.
 *
 * # Arguments
 *
 * - `cp437_grid`: instance to read from
 */
-Cp437Grid */*notnull*/ sp_cp437_grid_clone(Cp437Grid */*notnull*/ instance);
+size_t sp_cp437_grid_height(Cp437Grid */*notnull*/ cp437_grid);
 /**
 *Deallocates a [Cp437Grid] instance.
 */
 void sp_cp437_grid_free(Cp437Grid */*notnull*/ instance);
 /**
 * Creates a [Cp437GridCommand] and immediately turns that into a [Packet].
@ -1660,19 +1687,11 @@ Cp437Grid *sp_cp437_grid_load(size_t width,
 Cp437Grid */*notnull*/ sp_cp437_grid_new(size_t width, size_t height);
 /**
- * Calls [`servicepoint::Cp437Grid::height`].
+ * Sets the value of the specified position in the [Cp437Grid].
 *
 * Gets the height of the grid.
 */
 size_t sp_cp437_height(Cp437Grid */*notnull*/ instance);
 /**
 * Calls [`servicepoint::Cp437Grid::set`].
 *
 * Sets the value at the specified position.
 *
 * # Arguments
 *
 * - `cp437_grid`: instance to write to
 * - `x` and `y`: position of the cell
 * - `value`: the value to write to the cell
 *
@ -1682,27 +1701,38 @@ size_t sp_cp437_height(Cp437Grid */*notnull*/ instance);
 *
 * - when accessing `x` or `y` out of bounds
 */
-void sp_cp437_set(Cp437Grid */*notnull*/ instance,
+void sp_cp437_grid_set(Cp437Grid */*notnull*/ cp437_grid,
                       size_t x,
                       size_t y,
                       uint8_t value);
 /**
- * Calls [`servicepoint::Cp437Grid::width`].
+ * Gets an unsafe reference to the data of the [Cp437Grid] instance.
 *
- * Gets the width of the grid.
+ * The returned memory is valid for the lifetime of the grid.
 */
-size_t sp_cp437_width(Cp437Grid */*notnull*/ instance);
+struct ByteSlice sp_cp437_grid_unsafe_data_ref(Cp437Grid */*notnull*/ cp437_grid);
 /**
- *Clones a [Packet] instance.
+ * Gets the width of the [Cp437Grid] instance.
 *
 * # Arguments
 *
 * - `cp437_grid`: instance to read from
 */
-struct Packet */*notnull*/ sp_packet_clone(struct Packet */*notnull*/ instance);
+size_t sp_cp437_grid_width(Cp437Grid */*notnull*/ cp437_grid);
 /**
- *Deallocates a [Packet] instance.
+ * Clones a [Packet].
 *
 * returns: a new [Packet] instance.
 */
-void sp_packet_free(struct Packet */*notnull*/ instance);
+struct Packet */*notnull*/ sp_packet_clone(struct Packet */*notnull*/ packet);
 /**
 * Deallocates a [Packet].
 */
 void sp_packet_free(struct Packet */*notnull*/ packet);
 /**
 * Creates a raw [Packet] from parts.
@ -1762,9 +1792,9 @@ bool sp_u16_to_command_code(uint16_t code,
                            CommandCode *result);
 /**
- *Deallocates a [UdpSocket] instance.
+ * Closes and deallocates a [UdpSocket].
 */
-void sp_udp_free(struct UdpSocket */*notnull*/ instance);
+void sp_udp_free(struct UdpSocket */*notnull*/ connection);
 /**
 * Creates a new instance of [UdpSocket].
--- a/nix-build-all.sh
+++ b/nix-build-all.sh
@ -3,24 +3,22 @@
 set -e
 set -x
-BUILD="nix build -L"
+BUILD="nix build"
-$BUILD .#servicepoint-binding-c -o result
+$BUILD .#servicepoint-binding-c
-$BUILD .#servicepoint-binding-c-stable-release -o result-stable-release
+$BUILD .#servicepoint-binding-c-stable-release
-$BUILD .#servicepoint-binding-c-stable-size -o result-stable-size
+$BUILD .#servicepoint-binding-c-stable-size
-$BUILD .#servicepoint-binding-c-nightly-release -o result-nightly-release
+$BUILD .#servicepoint-binding-c-nightly-release
-$BUILD .#servicepoint-binding-c-nightly-size -o result-nightly-size
+$BUILD .#servicepoint-binding-c-nightly-size
 $BUILD .#servicepoint-binding-c-musl-stable-release -o result-musl-release
 $BUILD .#servicepoint-binding-c-musl-stable-size -o result-musl-size
-# do not work yet:
+$BUILD .#servicepoint-binding-c-musl-stable-release
 $BUILD .#servicepoint-binding-c-musl-stable-size
 # $BUILD .#servicepoint-binding-c-musl-nightly-release
 # $BUILD .#servicepoint-binding-c-musl-nightly-size
-$BUILD .#all-examples -o result-examples
+$BUILD .#all-examples
-$BUILD .#all-examples-size -o result-examples-size
+$BUILD .#all-examples-size
-$BUILD .#all-examples-nightly-size -o result-nightly-size
+$BUILD .#all-examples-musl
-$BUILD .#all-examples-musl -o result-examples-musl
+$BUILD .#all-examples-musl-static
-$BUILD .#all-examples-musl-static -o result-examples-musl-static
+$BUILD .#all-examples-musl-static-size
 $BUILD .#all-examples-musl-static-size -o result-examples-musl-static-size
--- a/packages.nix
+++ b/packages.nix
@ -11,13 +11,9 @@ let
    {
      rustPlatform,
      pkgs,
      buildType ? "release",
      buildNoDefaultFeatures ? false,
      cargoBuildFlags ? [ ],
      nativeBuildInputs ? []
    }:
    rustPlatform.buildRustPackage (finalAttrs: {
-      inherit version buildType cargoBuildFlags;
+      inherit version;
      pname = "servicepoint-binding-c";
      src = lib.filter {
@ -39,7 +35,7 @@ let
        license = lib.licenses.gpl3Plus;
        pkgConfigModules = [ "servicepoint" ];
      };
-      nativeBuildInputs = [ pkgs.pkg-config ] ++ nativeBuildInputs;
+      nativeBuildInputs = [ pkgs.pkg-config ];
      buildInputs = [ pkgs.xz ];
      preBuild = ''
@ -61,14 +57,9 @@ let
      name,
      servicepointBinding,
      pkgs,
      EXTRA_CFLAGS ? "",
      static ? false,
    }:
    let
      staticPkgConfigParam = if static then "--static" else "";
    in
    pkgs.gccStdenv.mkDerivation {
-      inherit version EXTRA_CFLAGS;
+      inherit version;
      pname = "servicepoint-c-example-${name}";
      nativeBuildInputs = [ pkgs.pkg-config ];
      buildInputs = [
@ -80,12 +71,19 @@ let
        set -e
        set -x
        mkdir -p $out/bin
-        $CC ${name}.c ${if static then "-static" else ""} $CFLAGS $EXTRA_CFLAGS \
+        $CC ${name}.c $CFLAGS $EXTRA_CFLAGS $(pkg-config --libs --cflags servicepoint) $(pkg-config --libs --cflags liblzma) -o $out/bin/${name}
          $(pkg-config --libs --cflags ${staticPkgConfigParam} servicepoint) \
          $(pkg-config --libs --cflags ${staticPkgConfigParam} liblzma) \
          -o $out/bin/${name}
      '';
    };
  rustPlatform-stable = pkgs.rustPlatform;
  rustPlatform-unstable = pkgs.makeRustPlatform {
    cargo = fenix.minimal.cargo;
    rustc = fenix.minimal.rustc;
  };
  rustPlatform-musl-stable = pkgs.pkgsMusl.rustPlatform;
  rustPlatform-musl-unstable = pkgs.pkgsMusl.makeRustPlatform {
    cargo = fenix.minimal.cargo;
    rustc = fenix.minimal.rustc;
  };
  examples = [
    "announce"
    "brightness_tester"
@ -94,12 +92,6 @@ let
    "random_stuff"
    "wiping_clear"
  ];
  mkAllExamples =
    suffix:
    pkgs.symlinkJoin {
      name = "servicepoint-all-examples";
      paths = builtins.map (e: selfPkgs."${e}${suffix}") examples;
    };
  size-cflags = [
    "-Oz"
    "-fwrapv"
@ -120,58 +112,54 @@ let
    "-Wl,--gc-sections"
    "-Wl,--exclude-libs,ALL"
  ];
-  rustPlatform-stable = pkgs.rustPlatform;
+  servicepoint-stable-size-args = {
  rustPlatform-nightly = pkgs.makeRustPlatform fenix.complete;
  rustPlatform-musl-stable = pkgs.pkgsMusl.rustPlatform;
  rustPlatform-musl-nightly = pkgs.pkgsMusl.makeRustPlatform fenix.complete;
  stable-release-args = {
    inherit pkgs;
    rustPlatform = rustPlatform-stable;
  };
  nightly-release-args = {
    inherit pkgs;
    rustPlatform = rustPlatform-nightly;
  };
  musl-stable-release-args = {
    pkgs = pkgs.pkgsMusl;
    rustPlatform = rustPlatform-musl-stable;
  };
  musl-nightly-release-args = {
    pkgs = pkgs.pkgsMusl;
    rustPlatform = rustPlatform-musl-nightly;
  };
  stable-size-args = {
    buildType = "size_optimized";
    buildNoDefaultFeatures = true;
  };
-  nightly-size-args = {
+  servicepoint-unstable-size-args = {
-    cargoBuildFlags = [
+    # TODO: do these override the nix flags?
-      "-Zbuild-std=core,std,alloc,proc_macro,panic_abort"
+    CARGOFLAGS = ''-Zbuild-std="core,std,alloc,proc_macro,panic_abort" -Zbuild-std-features="panic_immediate_abort"'';
      "-Zbuild-std-features=panic_immediate_abort"
    ];
    # TODO: remove hard-coded target
    nativeBuildInputs = [fenix.targets."x86_64-unknown-linux-gnu".latest.rust-std];
    # TODO: those override the nix flags
    # NIX_CFLAGS_COMPILE = builtins.toString ["-Oz" "-fwrapv" "-fomit-frame-pointer" "-fno-stack-protector" "-fno-unroll-loops" "-fno-unwind-tables" "-fno-asynchronous-unwind-tables" "-fmerge-all-constants" "-fvisibility=hidden" "-Bsymbolic" "-fno-ident" "-fno-exceptions" "-ffunction-sections" "-fdata-sections"];
    # NIX_CFLAGS_LINK = builtins.toString ["Wl,-z,norelro" "-Wl,--hash-style=gnu" "-Wl,--gc-sections" "-Wl,--exclude-libs,ALL"];
  };
  mkAllExamples =
    suffix:
    pkgs.symlinkJoin {
      name = "servicepoint-all-examples";
      paths = builtins.map (e: selfPkgs."${e}${suffix}") examples;
    };
 in
 rec {
-  servicepoint-binding-c-stable-release = mkServicepoint stable-release-args;
+  servicepoint-binding-c-stable-release = mkServicepoint {
-  servicepoint-binding-c-nightly-release = mkServicepoint nightly-release-args;
+    inherit pkgs;
-  servicepoint-binding-c-musl-stable-release = mkServicepoint musl-stable-release-args;
+    rustPlatform = rustPlatform-stable;
-  servicepoint-binding-c-musl-nightly-release = mkServicepoint musl-nightly-release-args;
+  };
  servicepoint-binding-c-nightly-release = mkServicepoint {
    inherit pkgs;
    rustPlatform = rustPlatform-unstable;
  };
  servicepoint-binding-c-musl-stable-release = mkServicepoint {
    pkgs = pkgs.pkgsMusl;
    rustPlatform = rustPlatform-musl-stable;
  };
  servicepoint-binding-c-musl-nightly-release = mkServicepoint {
    pkgs = pkgs.pkgsMusl;
    rustPlatform = rustPlatform-musl-unstable;
  };
-  servicepoint-binding-c-stable-size = mkServicepoint (stable-release-args // stable-size-args);
+  servicepoint-binding-c-stable-size =
-  servicepoint-binding-c-nightly-size = mkServicepoint (
+    servicepoint-binding-c-stable-release // servicepoint-stable-size-args;
-    nightly-release-args // stable-size-args // nightly-size-args
+  servicepoint-binding-c-nightly-size =
-  );
+    servicepoint-binding-c-nightly-release
-  servicepoint-binding-c-musl-stable-size = mkServicepoint (
+    // servicepoint-stable-size-args
-    musl-stable-release-args // stable-size-args
+    // servicepoint-unstable-size-args;
-  );
+  servicepoint-binding-c-musl-stable-size =
-  servicepoint-binding-c-musl-nightly-size = mkServicepoint (
+    servicepoint-binding-c-musl-stable-release // servicepoint-stable-size-args;
-    musl-nightly-release-args // stable-size-args // nightly-size-args
+  servicepoint-binding-c-musl-nightly-size =
-  );
+    servicepoint-binding-c-musl-nightly-release
    // servicepoint-stable-size-args
    // servicepoint-unstable-size-args;
  # default variants
  servicepoint-binding-c = servicepoint-binding-c-stable-release;
@ -179,7 +167,6 @@ rec {
  all-examples = mkAllExamples "";
  all-examples-size = mkAllExamples "-size";
  all-examples-nightly-size = mkAllExamples "-nightly-size";
  # TODO: musl targets do not work on darwin
  all-examples-musl = mkAllExamples "-musl";
  all-examples-musl-static = mkAllExamples "-musl-static";
@ -193,28 +180,27 @@ rec {
    servicepointBinding = selfPkgs.servicepoint-binding-c;
  }
 ))
-# construct another pakage per example, but optimized for size with stable rust
+# construct another pakage per example, but optimized for size with unstable rust
-// (lib.mapAttrs' (name: value: lib.nameValuePair ("${name}-size") value) (
+// (lib.mapAttrs'
-  lib.genAttrs examples (
+  (
-    name:
+    name: value:
-    mkExample {
+    lib.nameValuePair ("${name}-size") (
-      inherit name pkgs;
+      value
-      servicepointBinding = selfPkgs.servicepoint-binding-c-stable-size;
+      // {
        EXTRA_CFLAGS = builtins.toString size-cflags;
      }
    )
-))
+  )
-# construct another pakage per example, but optimized for size with unstable rust
+  (
 // (lib.mapAttrs' (name: value: lib.nameValuePair ("${name}-unstable-size") value) (
    lib.genAttrs examples (
      name:
      mkExample {
        inherit name pkgs;
        servicepointBinding = selfPkgs.servicepoint-binding-c-nightly-size;
      EXTRA_CFLAGS = builtins.toString size-cflags;
      }
    )
-))
+  )
 )
 # construct another pakage per example, but with musl
 // (lib.mapAttrs' (name: value: lib.nameValuePair ("${name}-musl") value) (
  lib.genAttrs examples (
@ -222,7 +208,7 @@ rec {
    mkExample {
      inherit name;
      pkgs = pkgs.pkgsMusl;
-      servicepointBinding = selfPkgs.servicepoint-binding-c-musl-stable-release;
+      servicepointBinding = selfPkgs.servicepoint-binding-c-musl;
    }
  )
 ))
@ -233,8 +219,10 @@ rec {
    mkExample {
      inherit name;
      pkgs = pkgs.pkgsMusl;
-      servicepointBinding = selfPkgs.servicepoint-binding-c-musl-stable-release;
+      servicepointBinding = selfPkgs.servicepoint-binding-c-musl;
-      static = true;
+    }
    // {
      EXTRA_CFLAGS = "-static";
    }
  )
 ))
@ -245,9 +233,10 @@ rec {
    mkExample {
      inherit name;
      pkgs = pkgs.pkgsMusl;
-      servicepointBinding = selfPkgs.servicepoint-binding-c-musl-stable-size;
+      servicepointBinding = selfPkgs.servicepoint-binding-c-musl;
-      static = true;
+    }
-      EXTRA_CFLAGS = builtins.toString size-cflags;
+    // {
      EXTRA_CFLAGS = "-static" + builtins.toString size-cflags;
    }
  )
 ))
--- a/src/commands/bitmap_command.rs
+++ b/src/commands/bitmap_command.rs
@ -1,6 +1,5 @@
-use crate::{
+use crate::mem::{
-    macros::{wrap_clone, wrap_free},
+    heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
 };
 use servicepoint::{Bitmap, BitmapCommand, CompressionCode, Origin, Packet};
 use std::ptr::NonNull;
@ -45,8 +44,21 @@ pub unsafe extern "C" fn sp_cmd_bitmap_try_into_packet(
    heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
-wrap_clone!(BitmapCommand, sp_cmd_bitmap);
+/// Clones an [BitmapCommand] instance.
-wrap_free!(BitmapCommand, sp_cmd_bitmap);
+///
 /// returns: a new [BitmapCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_bitmap_clone(
    command: NonNull<BitmapCommand>,
 ) -> NonNull<BitmapCommand> {
    unsafe { heap_clone(command) }
 }
 /// Deallocates a [BitmapCommand] instance.
 #[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`.
 ///
--- a/src/commands/bitvec_command.rs
+++ b/src/commands/bitvec_command.rs
@ -1,6 +1,5 @@
-use crate::{
+use crate::mem::{
-    macros::{wrap_clone, wrap_free},
+    heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
 };
 use servicepoint::{
    BinaryOperation, BitVecCommand, CompressionCode, DisplayBitVec, Offset,
@ -45,8 +44,21 @@ pub unsafe extern "C" fn sp_cmd_bitvec_try_into_packet(
    heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
-wrap_clone!(BitVecCommand, sp_cmd_bitvec);
+/// Clones an [BitVecCommand] instance.
-wrap_free!(BitVecCommand, sp_cmd_bitvec);
+///
 /// returns: a new [BitVecCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_bitvec_clone(
    command: NonNull<BitVecCommand>,
 ) -> NonNull<BitVecCommand> {
    unsafe { heap_clone(command) }
 }
 /// Deallocates a [BitVecCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_bitvec_free(command: NonNull<BitVecCommand>) {
    unsafe { heap_drop(command) }
 }
 /// Returns a pointer to the [BitVec] contained in the [BitVecCommand].
 #[no_mangle]
--- a/src/commands/brightness_grid_command.rs
+++ b/src/commands/brightness_grid_command.rs
@ -1,8 +1,9 @@
-use crate::{
+use crate::mem::{
-    macros::{wrap_clone, wrap_free},
+    heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
-    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
+};
 use servicepoint::{
    BitmapCommand, BrightnessGrid, BrightnessGridCommand, Origin, Packet,
 };
 use servicepoint::{BrightnessGrid, BrightnessGridCommand, Origin, Packet};
 use std::ptr::NonNull;
 /// Set the brightness of individual tiles in a rectangular area of the display.
@ -41,8 +42,23 @@ pub unsafe extern "C" fn sp_cmd_brightness_grid_into_packet(
    heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
-wrap_clone!(BrightnessGridCommand, sp_cmd_brightness_grid);
+/// Clones an [BrightnessGridCommand] instance.
-wrap_free!(BrightnessGridCommand, sp_cmd_brightness_grid);
+///
 /// returns: a new [BrightnessGridCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_brightness_grid_clone(
    command: NonNull<BrightnessGridCommand>,
 ) -> NonNull<BrightnessGridCommand> {
    unsafe { heap_clone(command) }
 }
 /// Deallocates a [BitmapCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_brightness_grid_free(
    command: NonNull<BitmapCommand>,
 ) {
    unsafe { heap_drop(command) }
 }
 /// Moves the provided [BrightnessGrid] to be contained in the [BrightnessGridCommand].
 #[no_mangle]
--- a/src/commands/cc_only_commands.rs
+++ b/src/commands/cc_only_commands.rs
@ -1,4 +1,4 @@
-use crate::{macros::wrap_free, mem::heap_move_nonnull};
+use crate::mem::{heap_drop, heap_move_nonnull};
 use servicepoint::{ClearCommand, FadeOutCommand, HardResetCommand};
 use std::ptr::NonNull;
@ -12,7 +12,11 @@ pub unsafe extern "C" fn sp_cmd_clear_new() -> NonNull<ClearCommand> {
    heap_move_nonnull(ClearCommand)
 }
-wrap_free!(ClearCommand, sp_cmd_clear);
+/// Deallocates a [ClearCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_clear_free(command: NonNull<ClearCommand>) {
    unsafe { heap_drop(command) }
 }
 /// Kills the udp daemon on the display, which usually results in a restart.
 ///
@ -24,7 +28,13 @@ pub unsafe extern "C" fn sp_cmd_hard_reset_new() -> NonNull<HardResetCommand> {
    heap_move_nonnull(HardResetCommand)
 }
-wrap_free!(HardResetCommand, sp_cmd_hard_reset);
+/// Deallocates a [HardResetCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_hard_reset_free(
    command: NonNull<ClearCommand>,
 ) {
    unsafe { heap_drop(command) }
 }
 /// A yet-to-be-tested command.
 ///
@ -34,4 +44,8 @@ pub unsafe extern "C" fn sp_cmd_fade_out_new() -> NonNull<FadeOutCommand> {
    heap_move_nonnull(FadeOutCommand)
 }
-wrap_free!(FadeOutCommand, sp_cmd_fade_out);
+/// Deallocates a [FadeOutCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_fade_out_free(command: NonNull<ClearCommand>) {
    unsafe { heap_drop(command) }
 }
--- a/src/commands/char_grid_command.rs
+++ b/src/commands/char_grid_command.rs
@ -1,8 +1,7 @@
-use crate::{
+use crate::mem::{
-    macros::{wrap_clone, wrap_free},
+    heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
 };
-use servicepoint::{CharGrid, CharGridCommand, Origin, Packet};
+use servicepoint::{BitmapCommand, CharGrid, CharGridCommand, Origin, Packet};
 use std::ptr::NonNull;
 /// Show UTF-8 encoded text on the screen.
@ -41,8 +40,23 @@ pub unsafe extern "C" fn sp_cmd_char_grid_try_into_packet(
    heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
-wrap_clone!(CharGridCommand, sp_cmd_char_grid);
+/// Clones an [CharGridCommand] instance.
-wrap_free!(CharGridCommand, sp_cmd_char_grid);
+///
 /// returns: a new [CharGridCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_char_grid_clone(
    command: NonNull<CharGridCommand>,
 ) -> NonNull<CharGridCommand> {
    unsafe { heap_clone(command) }
 }
 /// Deallocates a [BitmapCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_char_grid_free(
    command: NonNull<BitmapCommand>,
 ) {
    unsafe { heap_drop(command) }
 }
 /// Moves the provided [CharGrid] to be contained in the [CharGridCommand].
 #[no_mangle]
--- a/src/commands/cp437_grid_command.rs
+++ b/src/commands/cp437_grid_command.rs
@ -1,8 +1,9 @@
-use crate::{
+use crate::mem::{
-    macros::{wrap_clone, wrap_free},
+    heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
-    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
+};
 use servicepoint::{
    BitmapCommand, Cp437Grid, Cp437GridCommand, Origin, Packet,
 };
 use servicepoint::{Cp437Grid, Cp437GridCommand, Origin, Packet};
 use std::ptr::NonNull;
 /// Show text on the screen.
@ -41,8 +42,23 @@ pub unsafe extern "C" fn sp_cmd_cp437_grid_try_into_packet(
    heap_move_ok(unsafe { heap_remove(command) }.try_into())
 }
-wrap_clone!(Cp437GridCommand, sp_cmd_cp437_grid);
+/// Clones an [Cp437GridCommand] instance.
-wrap_free!(Cp437GridCommand, sp_cmd_cp437_grid);
+///
 /// returns: a new [Cp437GridCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_cp437_grid_clone(
    command: NonNull<Cp437GridCommand>,
 ) -> NonNull<Cp437GridCommand> {
    unsafe { heap_clone(command) }
 }
 /// Deallocates a [Cp437GridCommand].
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_cp437_grid_free(
    command: NonNull<BitmapCommand>,
 ) {
    unsafe { heap_drop(command) }
 }
 /// Moves the provided bitmap into the provided command.
 ///
--- a/src/commands/global_brightness_command.rs
+++ b/src/commands/global_brightness_command.rs
@ -1,8 +1,7 @@
-use crate::{
+use crate::mem::{heap_clone, heap_drop, heap_move_nonnull, heap_remove};
-    macros::{wrap_clone, wrap_free},
+use servicepoint::{
-    mem::{heap_move_nonnull, heap_remove},
+    BitmapCommand, Brightness, GlobalBrightnessCommand, Packet,
 };
 use servicepoint::{Brightness, GlobalBrightnessCommand, Packet};
 use std::ptr::NonNull;
 /// Set the brightness of all tiles to the same value.
@ -22,8 +21,22 @@ pub unsafe extern "C" fn sp_cmd_brightness_global_into_packet(
    heap_move_nonnull(unsafe { heap_remove(command) }.into())
 }
-wrap_clone!(GlobalBrightnessCommand, sp_cmd_brightness_global);
+/// Clones an [GlobalBrightnessCommand] instance.
-wrap_free!(GlobalBrightnessCommand, sp_cmd_brightness_global);
+///
 /// returns: a new [GlobalBrightnessCommand] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_brightness_global_clone(
    command: NonNull<GlobalBrightnessCommand>,
 ) -> NonNull<GlobalBrightnessCommand> {
    unsafe { heap_clone(command) }
 }
 #[no_mangle]
 pub unsafe extern "C" fn sp_cmd_brightness_global_free(
    command: NonNull<BitmapCommand>,
 ) {
    unsafe { heap_drop(command) }
 }
 /// Moves the provided bitmap to be contained in the command.
 #[no_mangle]
--- a/src/containers/bitmap.rs
+++ b/src/containers/bitmap.rs
@ -1,7 +1,9 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free, wrap_method},
+    mem::{
-    mem::{heap_move_nonnull, heap_move_ok, heap_move_some, heap_remove},
+        heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_move_some,
        heap_remove,
    },
 };
 use servicepoint::{
    Bitmap, BitmapCommand, CompressionCode, DataRef, DisplayBitVec, Grid,
@ -80,70 +82,112 @@ pub unsafe extern "C" fn sp_bitmap_from_bitvec(
    heap_move_ok(Bitmap::from_bitvec(width, bitvec))
 }
-wrap_clone!(Bitmap, sp_bitmap);
+/// Clones a [Bitmap].
-wrap_free!(Bitmap, sp_bitmap);
+#[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_clone(
    bitmap: NonNull<Bitmap>,
 ) -> NonNull<Bitmap> {
    unsafe { heap_clone(bitmap) }
 }
-wrap_method!(
+/// Deallocates a [Bitmap].
-    sp_bitmap :: Bitmap;
+#[no_mangle]
-    /// Gets the current value at the specified position.
+pub unsafe extern "C" fn sp_bitmap_free(bitmap: NonNull<Bitmap>) {
-    ///
+    unsafe { heap_drop(bitmap) }
-    /// # Arguments
+}
    ///
    /// - `x` and `y`: position of the cell to read
    ///
    /// # Panics
    ///
    /// - when accessing `x` or `y` out of bounds
    ref fn get(x: usize, y: usize) -> bool;
 );
-wrap_method!(
+/// Gets the current value at the specified position in the [Bitmap].
-    sp_bitmap :: Bitmap;
+///
-    /// Sets the value of the specified position.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `bitmap`: instance to read from
-    ///
+/// - `x` and `y`: position of the cell to read
-    /// - `x` and `y`: position of the cell
+///
-    /// - `value`: the value to write to the cell
+/// # Panics
-    ///
+///
-    /// # Panics
+/// - when accessing `x` or `y` out of bounds
-    ///
+#[no_mangle]
-    /// - when accessing `x` or `y` out of bounds
+pub unsafe extern "C" fn sp_bitmap_get(
-    mut fn set(x: usize, y: usize, value: bool);
+    bitmap: NonNull<Bitmap>,
-);
+    x: usize,
    y: usize,
 ) -> bool {
    unsafe { bitmap.as_ref().get(x, y) }
 }
-wrap_method!(
+/// Sets the value of the specified position in the [Bitmap].
-    sp_bitmap :: Bitmap;
+///
-    /// Sets the state of all pixels in the [Bitmap].
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `bitmap`: instance to write to
-    ///
+/// - `x` and `y`: position of the cell
-    /// - `value`: the value to set all pixels to
+/// - `value`: the value to write to the cell
-    mut fn fill(value: bool);
+///
-);
+/// # Panics
 ///
 /// - when accessing `x` or `y` out of bounds
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_set(
    bitmap: NonNull<Bitmap>,
    x: usize,
    y: usize,
    value: bool,
 ) {
    unsafe { (*bitmap.as_ptr()).set(x, y, value) };
 }
-wrap_method!(
+/// Sets the state of all pixels in the [Bitmap].
-    sp_bitmap :: Bitmap;
+///
-    /// Gets the width in pixels.
+/// # Arguments
-    ref fn width() -> usize;
+///
-);
+/// - `bitmap`: instance to write to
 /// - `value`: the value to set all pixels to
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_fill(bitmap: NonNull<Bitmap>, value: bool) {
    unsafe { (*bitmap.as_ptr()).fill(value) };
 }
-wrap_method!(
+/// Gets the width in pixels of the [Bitmap] instance.
-    sp_bitmap :: Bitmap;
+///
-    /// Gets the height in pixels.
+/// # Arguments
-    ref fn height() -> usize;
+///
-);
+/// - `bitmap`: instance to read from
 ///
 /// # Panics
 ///
 /// - when `bitmap` is NULL
 ///
 /// # Safety
 ///
 /// The caller has to make sure that:
 ///
 /// - `bitmap` points to a valid [Bitmap]
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_width(bitmap: NonNull<Bitmap>) -> usize {
    unsafe { bitmap.as_ref().width() }
 }
-wrap_method!(
+/// Gets the height in pixels of the [Bitmap] instance.
-    sp_bitmap :: Bitmap;
+///
-    /// Gets an unsafe reference to the data of the [Bitmap] instance.
+/// # Arguments
-    ///
+///
-    /// The returned memory is valid for the lifetime of the bitmap.
+/// - `bitmap`: instance to read from
-    mut fn data_ref_mut() -> ByteSlice;
+#[no_mangle]
-    |slice| unsafe { ByteSlice::from_slice(slice) };
+pub unsafe extern "C" fn sp_bitmap_height(bitmap: NonNull<Bitmap>) -> usize {
-);
+    unsafe { bitmap.as_ref().height() }
 }
-/// Consumes the Bitmap and returns the contained BitVec.
+/// Gets an unsafe reference to the data of the [Bitmap] instance.
 ///
 /// The returned memory is valid for the lifetime of the bitmap.
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_unsafe_data_ref(
    mut bitmap: NonNull<Bitmap>,
 ) -> ByteSlice {
    unsafe { ByteSlice::from_slice(bitmap.as_mut().data_ref_mut()) }
 }
 /// Consumes the Bitmap and returns the contained BitVec
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitmap_into_bitvec(
    bitmap: NonNull<Bitmap>,
--- a/src/containers/bitvec.rs
+++ b/src/containers/bitvec.rs
@ -1,7 +1,8 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free, wrap_method},
+    mem::{
-    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
+        heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
    },
 };
 use servicepoint::{
    BinaryOperation, BitVecCommand, CompressionCode, DisplayBitVec, Packet,
@ -35,72 +36,111 @@ pub unsafe extern "C" fn sp_bitvec_load(
    heap_move_nonnull(DisplayBitVec::from_slice(data))
 }
-wrap_clone!(DisplayBitVec, sp_bitvec);
+/// Clones a [DisplayBitVec].
-wrap_free!(DisplayBitVec, sp_bitvec);
+#[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_clone(
    bit_vec: NonNull<DisplayBitVec>,
 ) -> NonNull<DisplayBitVec> {
    unsafe { heap_clone(bit_vec) }
 }
-wrap_method!(
+/// Deallocates a [DisplayBitVec].
-    sp_bitvec :: DisplayBitVec;
+#[no_mangle]
-    /// Gets the value of a bit.
+pub unsafe extern "C" fn sp_bitvec_free(bit_vec: NonNull<DisplayBitVec>) {
-    ///
+    unsafe { heap_drop(bit_vec) }
-    /// # Arguments
+}
    ///
    /// - `bit_vec`: instance to read from
    /// - `index`: the bit index to read
    ///
    /// returns: value of the bit
    ///
    /// # Panics
    ///
    /// - when accessing `index` out of bounds
    ref fn get(index: usize) -> bool;
    |result| result.map(|x| *x).unwrap_or(false);
 );
-wrap_method!(
+/// Gets the value of a bit from the [DisplayBitVec].
-    sp_bitvec :: DisplayBitVec;
+///
-    /// Sets the value of a bit.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `bit_vec`: instance to read from
-    ///
+/// - `index`: the bit index to read
-    /// - `index`: the bit index to edit
+///
-    /// - `value`: the value to set the bit to
+/// returns: value of the bit
-    ///
+///
-    /// # Panics
+/// # Panics
-    ///
+///
-    /// - when accessing `index` out of bounds
+/// - when accessing `index` out of bounds
-    mut fn set(index: usize, value: bool);
+#[no_mangle]
-);
+pub unsafe extern "C" fn sp_bitvec_get(
    bit_vec: NonNull<DisplayBitVec>,
    index: usize,
 ) -> bool {
    unsafe { *bit_vec.as_ref().get(index).unwrap() }
 }
-wrap_method!(
+/// Sets the value of a bit in the [DisplayBitVec].
-    sp_bitvec :: DisplayBitVec;
+///
-    /// Sets the value of all bits.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `bit_vec`: instance to write to
-    ///
+/// - `index`: the bit index to edit
-    /// - `value`: the value to set all bits to
+/// - `value`: the value to set the bit to
-    mut fn fill(value: bool);
+///
-);
+/// # Panics
 ///
 /// - when accessing `index` out of bounds
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_set(
    bit_vec: NonNull<DisplayBitVec>,
    index: usize,
    value: bool,
 ) {
    unsafe { (*bit_vec.as_ptr()).set(index, value) }
 }
-wrap_method!(
+/// Sets the value of all bits in the [DisplayBitVec].
-    sp_bitvec :: DisplayBitVec;
+///
-    /// Gets the length in bits.
+/// # Arguments
-    ref fn len() -> usize;
+///
-);
+/// - `bit_vec`: instance to write to
 /// - `value`: the value to set all bits to
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_fill(
    bit_vec: NonNull<DisplayBitVec>,
    value: bool,
 ) {
    unsafe { (*bit_vec.as_ptr()).fill(value) }
 }
-wrap_method!(
+/// Gets the length of the [DisplayBitVec] in bits.
-    sp_bitvec :: DisplayBitVec;
+///
-    /// Returns true if length is 0.
+/// # Arguments
-    ref fn is_empty() -> bool;
+///
-);
+/// - `bit_vec`: instance to write to
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_len(
    bit_vec: NonNull<DisplayBitVec>,
 ) -> usize {
    unsafe { bit_vec.as_ref().len() }
 }
-wrap_method!(
+/// Returns true if length is 0.
-    sp_bitvec :: DisplayBitVec;
+///
-    /// Gets an unsafe reference to the data of the [DisplayBitVec] instance.
+/// # Arguments
-    ///
+///
-    /// The returned memory is valid for the lifetime of the bitvec.
+/// - `bit_vec`: instance to write to
-    mut fn as_raw_mut_slice() -> ByteSlice;
+#[no_mangle]
-    |slice| unsafe { ByteSlice::from_slice(slice) };
+pub unsafe extern "C" fn sp_bitvec_is_empty(
-);
+    bit_vec: NonNull<DisplayBitVec>,
 ) -> bool {
    unsafe { bit_vec.as_ref().is_empty() }
 }
 /// Gets an unsafe reference to the data of the [DisplayBitVec] instance.
 ///
 /// The returned memory is valid for the lifetime of the bitvec.
 ///
 /// # Arguments
 ///
 /// - `bit_vec`: instance to write to
 #[no_mangle]
 pub unsafe extern "C" fn sp_bitvec_unsafe_data_ref(
    bit_vec: NonNull<DisplayBitVec>,
 ) -> ByteSlice {
    unsafe { ByteSlice::from_slice((*bit_vec.as_ptr()).as_raw_mut_slice()) }
 }
 /// Creates a [BitVecCommand] and immediately turns that into a [Packet].
 ///
--- a/src/containers/brightness_grid.rs
+++ b/src/containers/brightness_grid.rs
@ -1,13 +1,16 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free, wrap_method},
+    mem::{
-    mem::{heap_move_nonnull, heap_move_ok, heap_move_some, heap_remove},
+        heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_move_some,
        heap_remove,
    },
 };
 use servicepoint::{
    Brightness, BrightnessGrid, BrightnessGridCommand, ByteGrid, DataRef, Grid,
    Origin, Packet,
 };
-use std::{mem::transmute, ptr::NonNull};
+use std::mem::transmute;
 use std::ptr::NonNull;
 /// Creates a new [BrightnessGrid] with the specified dimensions.
 ///
@ -52,76 +55,128 @@ pub unsafe extern "C" fn sp_brightness_grid_load(
    )
 }
-wrap_clone!(BrightnessGrid, sp_brightness_grid);
+/// Clones a [BrightnessGrid].
-wrap_free!(BrightnessGrid, sp_brightness_grid);
+#[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_clone(
    grid: NonNull<BrightnessGrid>,
 ) -> NonNull<BrightnessGrid> {
    unsafe { heap_clone(grid) }
 }
-wrap_method!(
+/// Deallocates a [BrightnessGrid].
-    sp_brightness_grid :: BrightnessGrid;
+#[no_mangle]
-    /// Gets the current value at the specified position.
+pub unsafe extern "C" fn sp_brightness_grid_free(
-    ///
+    brightness_grid: NonNull<BrightnessGrid>,
-    /// # Arguments
+) {
-    ///
+    unsafe { heap_drop(brightness_grid) }
-    /// - `x` and `y`: position of the cell to read
+}
    ///
    /// returns: value at position
    ///
    /// # Panics
    /// - When accessing `x` or `y` out of bounds.
    ref fn get(x: usize, y: usize) -> Brightness;
 );
-wrap_method!(
+/// Gets the current value at the specified position.
-    sp_brightness_grid :: BrightnessGrid;
+///
-    /// Sets the value of the specified position.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `brightness_grid`: instance to read from
-    ///
+/// - `x` and `y`: position of the cell to read
-    /// - `x` and `y`: position of the cell
+///
-    /// - `value`: the value to write to the cell
+/// returns: value at position
-    ///
+///
-    /// returns: old value of the cell
+/// # Panics
-    ///
+/// - When accessing `x` or `y` out of bounds.
-    /// # Panics
+#[no_mangle]
-    ///
+pub unsafe extern "C" fn sp_brightness_grid_get(
-    /// - When accessing `x` or `y` out of bounds.
+    brightness_grid: NonNull<BrightnessGrid>,
-    mut fn set(x: usize, y: usize, value: Brightness);
+    x: usize,
-);
+    y: usize,
 ) -> Brightness {
    unsafe { brightness_grid.as_ref().get(x, y) }
 }
-wrap_method!(
+/// Sets the value of the specified position in the [BrightnessGrid].
-    sp_brightness_grid :: BrightnessGrid;
+///
-    /// Sets the value of all cells.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `brightness_grid`: instance to write to
-    ///
+/// - `x` and `y`: position of the cell
-    /// - `value`: the value to set all cells to
+/// - `value`: the value to write to the cell
-    mut fn fill(value: Brightness);
+///
-);
+/// returns: old value of the cell
 ///
 /// # Panics
 ///
 /// - When accessing `x` or `y` out of bounds.
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_set(
    brightness_grid: NonNull<BrightnessGrid>,
    x: usize,
    y: usize,
    value: Brightness,
 ) {
    unsafe { (*brightness_grid.as_ptr()).set(x, y, value) };
 }
-wrap_method!(
+/// Sets the value of all cells in the [BrightnessGrid].
-    sp_brightness_grid :: BrightnessGrid;
+///
-    /// Gets the width of the grid.
+/// # Arguments
-    ref fn width() -> usize;
+///
-);
+/// - `brightness_grid`: instance to write to
 /// - `value`: the value to set all cells to
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_fill(
    brightness_grid: NonNull<BrightnessGrid>,
    value: Brightness,
 ) {
    unsafe { (*brightness_grid.as_ptr()).fill(value) };
 }
-wrap_method!(
+/// Gets the width of the [BrightnessGrid] instance.
-    sp_brightness_grid :: BrightnessGrid;
+///
-    /// Gets the height of the grid.
+/// # Arguments
-    ref fn height() -> usize;
+///
-);
+/// - `brightness_grid`: instance to read from
 ///
 /// returns: width
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_width(
    brightness_grid: NonNull<BrightnessGrid>,
 ) -> usize {
    unsafe { brightness_grid.as_ref().width() }
 }
-wrap_method!(
+/// Gets the height of the [BrightnessGrid] instance.
-    sp_brightness_grid :: BrightnessGrid;
+///
-    /// Gets an unsafe reference to the data of the instance.
+/// # Arguments
-    ///
+///
-    /// The returned memory is valid for the lifetime of the grid.
+/// - `brightness_grid`: instance to read from
-    mut fn data_ref_mut() -> ByteSlice;
+///
-    |br_slice| unsafe {
+/// returns: height
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_height(
    brightness_grid: NonNull<BrightnessGrid>,
 ) -> usize {
    unsafe { brightness_grid.as_ref().height() }
 }
 /// Gets an unsafe reference to the data of the [BrightnessGrid] instance.
 ///
 /// The returned memory is valid for the lifetime of the brightness grid.
 ///
 /// # Arguments
 ///
 /// - `brightness_grid`: instance to read from
 ///
 /// returns: slice of bytes underlying the `brightness_grid`.
 #[no_mangle]
 pub unsafe extern "C" fn sp_brightness_grid_unsafe_data_ref(
    brightness_grid: NonNull<BrightnessGrid>,
 ) -> ByteSlice {
    //noinspection RsAssertEqual
    const _: () = assert!(size_of::<Brightness>() == 1);
-        ByteSlice::from_slice(transmute::<&mut [Brightness], &mut [u8]>(br_slice))
+    let data = unsafe { (*brightness_grid.as_ptr()).data_ref_mut() };
-    };
+    unsafe {
-);
+        ByteSlice::from_slice(transmute::<&mut [Brightness], &mut [u8]>(data))
    }
 }
 /// Creates a [BrightnessGridCommand] and immediately turns that into a [Packet].
 ///
--- a/src/containers/char_grid.rs
+++ b/src/containers/char_grid.rs
@ -1,7 +1,8 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free, wrap_method},
+    mem::{
-    mem::{heap_move_nonnull, heap_move_ok, heap_remove},
+        heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_remove,
    },
 };
 use servicepoint::{CharGrid, CharGridCommand, Grid, Origin, Packet};
 use std::ptr::NonNull;
@ -39,66 +40,99 @@ pub unsafe extern "C" fn sp_char_grid_load(
    heap_move_ok(CharGrid::load_utf8(width, height, data.to_vec()))
 }
-wrap_clone!(CharGrid, sp_char_grid);
+/// Clones a [CharGrid].
-wrap_free!(CharGrid, sp_char_grid);
+#[no_mangle]
 pub unsafe extern "C" fn sp_char_grid_clone(
    grid: NonNull<CharGrid>,
 ) -> NonNull<CharGrid> {
    unsafe { heap_clone(grid) }
 }
-wrap_method!(
+/// Deallocates a [CharGrid].
-    sp_char_grid :: CharGrid;
+#[no_mangle]
-    /// Returns the current value at the specified position.
+pub unsafe extern "C" fn sp_char_grid_free(char_grid: NonNull<CharGrid>) {
-    ///
+    unsafe { heap_drop(char_grid) }
-    /// # Arguments
+}
    ///
    /// - `x` and `y`: position of the cell to read
    ///
    /// # Panics
    ///
    /// - when accessing `x` or `y` out of bounds
    ref fn get(x: usize, y: usize) -> u32;
    | char | char as u32
 );
-wrap_method!(
+/// Returns the current value at the specified position.
-    sp_char_grid :: CharGrid;
+///
-    /// Sets the value of the specified position in the grid.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `char_grid`: instance to read from
-    ///
+/// - `x` and `y`: position of the cell to read
-    /// - `x` and `y`: position of the cell
+///
-    /// - `value`: the value to write to the cell
+/// # Panics
-    ///
+///
-    /// returns: old value of the cell
+/// - when accessing `x` or `y` out of bounds
-    ///
+#[no_mangle]
-    /// # Panics
+pub unsafe extern "C" fn sp_char_grid_get(
-    ///
+    char_grid: NonNull<CharGrid>,
-    /// - when accessing `x` or `y` out of bounds
+    x: usize,
-    /// - when providing values that cannot be converted to Rust's `char`.
+    y: usize,
-    mut fn set(x: usize, y: usize, value: u32);
+) -> u32 {
-    let value = char::from_u32(value).unwrap();
+    unsafe { char_grid.as_ref().get(x, y) as u32 }
-);
+}
-wrap_method!(
+/// Sets the value of the specified position in the [CharGrid].
-    sp_char_grid :: CharGrid;
+///
-    /// Sets the value of all cells in the grid.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `char_grid`: instance to write to
-    ///
+/// - `x` and `y`: position of the cell
-    /// - `value`: the value to set all cells to
+/// - `value`: the value to write to the cell
-    /// - when providing values that cannot be converted to Rust's `char`.
+///
-    mut fn fill(value: u32);
+/// returns: old value of the cell
-    let value = char::from_u32(value).unwrap();
+///
-);
+/// # Panics
 ///
 /// - when accessing `x` or `y` out of bounds
 #[no_mangle]
 pub unsafe extern "C" fn sp_char_grid_set(
    char_grid: NonNull<CharGrid>,
    x: usize,
    y: usize,
    value: u32,
 ) {
    unsafe { (*char_grid.as_ptr()).set(x, y, char::from_u32(value).unwrap()) };
 }
-wrap_method!(
+/// Sets the value of all cells in the [CharGrid].
-    sp_char_grid :: CharGrid;
+///
-    /// Gets the width of the grid.
+/// # Arguments
-    ref fn width() -> usize;
+///
-);
+/// - `char_grid`: instance to write to
 /// - `value`: the value to set all cells to
 #[no_mangle]
 pub unsafe extern "C" fn sp_char_grid_fill(
    char_grid: NonNull<CharGrid>,
    value: u32,
 ) {
    unsafe { (*char_grid.as_ptr()).fill(char::from_u32(value).unwrap()) };
 }
-wrap_method!(
+/// Gets the width of the [CharGrid] instance.
-    sp_char_grid :: CharGrid;
+///
-    /// Gets the height of the grid.
+/// # Arguments
-    ref fn height() -> usize;
+///
-);
+/// - `char_grid`: instance to read from
 #[no_mangle]
 pub unsafe extern "C" fn sp_char_grid_width(
    char_grid: NonNull<CharGrid>,
 ) -> usize {
    unsafe { char_grid.as_ref().width() }
 }
 /// Gets the height of the [CharGrid] instance.
 ///
 /// # Arguments
 ///
 /// - `char_grid`: instance to read from
 #[no_mangle]
 pub unsafe extern "C" fn sp_char_grid_height(
    char_grid: NonNull<CharGrid>,
 ) -> usize {
    unsafe { char_grid.as_ref().height() }
 }
 /// Creates a [CharGridCommand] and immediately turns that into a [Packet].
 ///
--- a/src/containers/cp437_grid.rs
+++ b/src/containers/cp437_grid.rs
@ -1,7 +1,9 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free, wrap_method},
+    mem::{
-    mem::{heap_move_nonnull, heap_move_ok, heap_move_some, heap_remove},
+        heap_clone, heap_drop, heap_move_nonnull, heap_move_ok, heap_move_some,
        heap_remove,
    },
 };
 use servicepoint::{
    Cp437Grid, Cp437GridCommand, DataRef, Grid, Origin, Packet,
@ -30,71 +32,109 @@ pub unsafe extern "C" fn sp_cp437_grid_load(
    heap_move_some(Cp437Grid::load(width, height, data))
 }
-wrap_clone!(Cp437Grid, sp_cp437_grid);
+/// Clones a [Cp437Grid].
-wrap_free!(Cp437Grid, sp_cp437_grid);
+#[no_mangle]
 pub unsafe extern "C" fn sp_cp437_grid_clone(
    grid: NonNull<Cp437Grid>,
 ) -> NonNull<Cp437Grid> {
    unsafe { heap_clone(grid) }
 }
-wrap_method!(
+/// Deallocates a [Cp437Grid].
-    sp_cp437 :: Cp437Grid;
+#[no_mangle]
-    /// Gets the current value at the specified position.
+pub unsafe extern "C" fn sp_cp437_grid_free(cp437_grid: NonNull<Cp437Grid>) {
-    ///
+    unsafe { heap_drop(cp437_grid) }
-    /// # Arguments
+}
    ///
    /// - `x` and `y`: position of the cell to read
    ///
    /// # Panics
    ///
    /// - when accessing `x` or `y` out of bounds
    ref fn get(x: usize, y: usize) -> u8;
 );
-wrap_method!(
+/// Gets the current value at the specified position.
-    sp_cp437 :: Cp437Grid;
+///
-    /// Sets the value at the specified position.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `cp437_grid`: instance to read from
-    ///
+/// - `x` and `y`: position of the cell to read
-    /// - `x` and `y`: position of the cell
+///
-    /// - `value`: the value to write to the cell
+/// # Panics
-    ///
+///
-    /// returns: old value of the cell
+/// - when accessing `x` or `y` out of bounds
-    ///
+#[no_mangle]
-    /// # Panics
+pub unsafe extern "C" fn sp_cp437_grid_get(
-    ///
+    cp437_grid: NonNull<Cp437Grid>,
-    /// - when accessing `x` or `y` out of bounds
+    x: usize,
-    mut fn set(x: usize, y: usize, value: u8);
+    y: usize,
-);
+) -> u8 {
    unsafe { cp437_grid.as_ref().get(x, y) }
 }
-wrap_method!(
+/// Sets the value of the specified position in the [Cp437Grid].
-    sp_cp437 :: Cp437Grid;
+///
-    /// Sets the value of all cells in the grid.
+/// # Arguments
-    ///
+///
-    /// # Arguments
+/// - `cp437_grid`: instance to write to
-    ///
+/// - `x` and `y`: position of the cell
-    /// - `cp437_grid`: instance to write to
+/// - `value`: the value to write to the cell
-    /// - `value`: the value to set all cells to
+///
-    mut fn fill(value: u8);
+/// returns: old value of the cell
-);
+///
 /// # Panics
 ///
 /// - when accessing `x` or `y` out of bounds
 #[no_mangle]
 pub unsafe extern "C" fn sp_cp437_grid_set(
    cp437_grid: NonNull<Cp437Grid>,
    x: usize,
    y: usize,
    value: u8,
 ) {
    unsafe { (*cp437_grid.as_ptr()).set(x, y, value) };
 }
-wrap_method!(
+/// Sets the value of all cells in the [Cp437Grid].
-    sp_cp437 :: Cp437Grid;
+///
-    /// Gets the width of the grid.
+/// # Arguments
-    ref fn width() -> usize;
+///
-);
+/// - `cp437_grid`: instance to write to
 /// - `value`: the value to set all cells to
 #[no_mangle]
 pub unsafe extern "C" fn sp_cp437_grid_fill(
    cp437_grid: NonNull<Cp437Grid>,
    value: u8,
 ) {
    unsafe { (*cp437_grid.as_ptr()).fill(value) };
 }
-wrap_method!(
+/// Gets the width of the [Cp437Grid] instance.
-    sp_cp437 :: Cp437Grid;
+///
-    /// Gets the height of the grid.
+/// # Arguments
-    ref fn height() -> usize;
+///
-);
+/// - `cp437_grid`: instance to read from
 #[no_mangle]
 pub unsafe extern "C" fn sp_cp437_grid_width(
    cp437_grid: NonNull<Cp437Grid>,
 ) -> usize {
    unsafe { cp437_grid.as_ref().width() }
 }
-wrap_method!(
+/// Gets the height of the [Cp437Grid] instance.
-    sp_cp437 :: Cp437Grid;
+///
-    /// Gets an unsafe reference to the data of the grid.
+/// # Arguments
-    ///
+///
-    /// The returned memory is valid for the lifetime of the instance.
+/// - `cp437_grid`: instance to read from
-    mut fn data_ref_mut() -> ByteSlice;
+#[no_mangle]
-    | slice | unsafe { ByteSlice::from_slice(slice) };
+pub unsafe extern "C" fn sp_cp437_grid_height(
-);
+    cp437_grid: NonNull<Cp437Grid>,
 ) -> usize {
    unsafe { cp437_grid.as_ref().height() }
 }
 /// Gets an unsafe reference to the data of the [Cp437Grid] instance.
 ///
 /// The returned memory is valid for the lifetime of the grid.
 #[no_mangle]
 pub unsafe extern "C" fn sp_cp437_grid_unsafe_data_ref(
    cp437_grid: NonNull<Cp437Grid>,
 ) -> ByteSlice {
    unsafe { ByteSlice::from_slice((*cp437_grid.as_ptr()).data_ref_mut()) }
 }
 /// Creates a [Cp437GridCommand] and immediately turns that into a [Packet].
 ///
--- a/src/lib.rs
+++ b/src/lib.rs
@ -29,7 +29,6 @@
 pub mod commands;
 /// Functions related to [servicepoint::Bitmap], [servicepoint::CharGrid] and friends.
 pub mod containers;
 mod macros;
 pub(crate) mod mem;
 /// Functions related to [Packet].
 pub mod packet;
--- a/src/macros.rs
+++ b/src/macros.rs
@ -1,77 +0,0 @@
 macro_rules! wrap_free {
    ($typ:ty, $prefix:ident) => {
        paste::paste! {
            #[doc = concat!("Deallocates a [", stringify!($typ), "] instance.")]
            #[no_mangle]
            pub unsafe extern "C" fn [<$prefix _free>](instance: NonNull<$typ>) {
                unsafe { $crate::mem::heap_drop(instance) }
            }
        }
    };
 }
 macro_rules! wrap_clone {
    ($typ:ty, $prefix:ident) => {
        paste::paste! {
            #[doc = concat!("Clones a [", stringify!($typ), "] instance.")]
            #[no_mangle]
            pub unsafe extern "C" fn [<$prefix _clone>](instance: NonNull<$typ>) -> NonNull<$typ> {
                unsafe { $crate::mem::heap_clone(instance) }
            }
        }
    };
 }
 macro_rules! nonnull_as_ref {
    ($ident:ident) => {
        $ident.as_ref()
    };
 }
 macro_rules! nonnull_as_mut {
    ($ident:ident) => {
        &mut *$ident.as_ptr()
    };
 }
 // meta required on purpose, because otherwise the added documentation would suppress warnings
 macro_rules! wrap_method {
    (
        $prefix:ident :: $object_type:ty;
        $(#[$meta:meta])+
        $ref_or_mut:ident fn $function:ident($($param_name:ident: $param_type:ty),*)
        $(-> $return_type:ty$(; |$it:ident | $return_expr:expr)?)?
        $(; let $param_let_name:ident = $param_let_expr:expr)*
        $(;)?
    ) => {
        paste::paste! {
            #[doc = concat!(" Calls [`servicepoint::", stringify!($object_type),
                "::", stringify!($function), "`].")]
            #[doc = ""]
            $(#[$meta])*
            #[no_mangle]
            pub unsafe extern "C" fn [<$prefix _ $function>](
                instance: NonNull<$object_type>,
                $($param_name: $param_type),*
            ) $(-> $return_type)? {
                let instance = unsafe {$crate::macros:: [< nonnull_as_ $ref_or_mut >] !(instance)};
                $(let $param_let_name = $param_let_expr;)*
                #[allow(
                    unused_variables,
                    reason = "This variable may not be used depending on macro variables" )]
                let result = instance.$function($($param_name),*);
                $(
                    $(
                        let $it = result;
                        let result = $return_expr;
                    )?
                    return result;
                )?
            }
        }
    };
 }
 pub(crate) use {
    nonnull_as_mut, nonnull_as_ref, wrap_clone, wrap_free, wrap_method,
 };
--- a/src/packet.rs
+++ b/src/packet.rs
@ -1,7 +1,6 @@
 use crate::{
    containers::ByteSlice,
-    macros::{wrap_clone, wrap_free},
+    mem::{heap_clone, heap_drop, heap_move_nonnull, heap_move_ok},
    mem::{heap_move_nonnull, heap_move_ok},
 };
 use servicepoint::{CommandCode, Header, Packet};
 use std::ptr::NonNull;
@ -91,8 +90,21 @@ pub unsafe extern "C" fn sp_packet_serialize_to(
    }
 }
-wrap_clone!(Packet, sp_packet);
+/// Clones a [Packet].
-wrap_free!(Packet, sp_packet);
+///
 /// returns: a new [Packet] instance.
 #[no_mangle]
 pub unsafe extern "C" fn sp_packet_clone(
    packet: NonNull<Packet>,
 ) -> NonNull<Packet> {
    unsafe { heap_clone(packet) }
 }
 /// Deallocates a [Packet].
 #[no_mangle]
 pub unsafe extern "C" fn sp_packet_free(packet: NonNull<Packet>) {
    unsafe { heap_drop(packet) }
 }
 /// Converts u16 into [CommandCode].
 ///
--- a/src/udp.rs
+++ b/src/udp.rs
@ -1,7 +1,6 @@
 use crate::{
    commands::{CommandTag, SPCommand},
-    macros::wrap_free,
+    mem::{heap_drop, heap_move_ok, heap_remove},
    mem::{heap_move_ok, heap_remove},
 };
 use servicepoint::{Header, Packet, UdpSocketExt};
 use std::{
@ -144,4 +143,8 @@ pub unsafe extern "C" fn sp_udp_send_header(
        .is_ok()
 }
-wrap_free!(UdpSocket, sp_udp);
+/// Closes and deallocates a [UdpSocket].
 #[no_mangle]
 pub unsafe extern "C" fn sp_udp_free(connection: NonNull<UdpSocket>) {
    unsafe { heap_drop(connection) }
 }
`@ -3,4 +3,4 @@ set -e`

	`SCRIPT_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"`	`SCRIPT_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"`

	`cbindgen --config $SCRIPT_PATH/cbindgen.toml --crate servicepoint_binding_c --output $SCRIPT_PATH/include/servicepoint.h`	`SERVICEPOINT_HEADER_OUT="$SCRIPT_PATH/include" cargo build --release`