CLI-ify rgblight_breathing_table_calc.c (#11174)

Co-authored-by: Takeshi ISHII <2170248+mtei@users.noreply.github.com>
Co-authored-by: Zach White <skullydazed@drpepper.org>

6 files changed, 203 insertions, 506 deletions

diff --git a/docs/cli_commands.md b/docs/cli_commands.md
index 69df82f953..71c803bc21 100644
--- a/docs/cli_commands.md
+++ b/docs/cli_commands.md
@@ -296,6 +296,16 @@ This command allows you to generate QMK documentation locally. It can be uses fo
 qmk generate-docs
 ```
 
+## `qmk generate-rgb-breathe-table`
+
+This command generates a lookup table (LUT) header file for the [RGB Lighting](feature_rgblight.md) feature's breathing animation. Place this file in your keyboard or keymap directory as `rgblight_breathe_table.h` to override the default LUT in `quantum/`.
+
+**Usage**:
+
+```
+qmk generate-rgb-breathe-table [-q] [-o OUTPUT] [-m MAX] [-c CENTER]
+```
+
 ## `qmk kle2json`
 
 This command allows you to convert from raw KLE data to QMK Configurator JSON. It accepts either an absolute file path, or a file name in the current directory. By default it will not overwrite `info.json` if it is already present. Use the `-f` or `--force` flag to overwrite.
diff --git a/lib/python/qmk/cli/generate/__init__.py b/lib/python/qmk/cli/generate/__init__.py
index 13bd1f0914..f9585bfb5c 100644
--- a/lib/python/qmk/cli/generate/__init__.py
+++ b/lib/python/qmk/cli/generate/__init__.py
@@ -1,2 +1,3 @@
 from . import api
 from . import docs
+from . import rgb_breathe_table
diff --git a/lib/python/qmk/cli/generate/rgb_breathe_table.py b/lib/python/qmk/cli/generate/rgb_breathe_table.py
new file mode 100644
index 0000000000..e1c5423ee5
--- /dev/null
+++ b/lib/python/qmk/cli/generate/rgb_breathe_table.py
@@ -0,0 +1,79 @@
+"""Generate rgblight_breathe_table.h
+"""
+import math
+from argparse import ArgumentTypeError
+
+from milc import cli
+
+import qmk.path
+
+
+def breathing_center(value):
+    value = float(value)
+    if value >= 1 and value <= 2.7:
+        return value
+    else:
+        raise ArgumentTypeError('Breathing center must be between 1 and 2.7')
+
+
+def breathing_max(value):
+    value = int(value)
+    if value in range(0, 256):
+        return value
+    else:
+        raise ArgumentTypeError('Breathing max must be between 0 and 255')
+
+
+@cli.argument('-c', '--center', arg_only=True, type=breathing_center, default=1.85, help='The breathing center value, from 1 to 2.7. Default: 1.85')
+@cli.argument('-m', '--max', arg_only=True, type=breathing_max, default=255, help='The breathing maximum value, from 0 to 255. Default: 255')
+@cli.argument('-o', '--output', arg_only=True, type=qmk.path.normpath, help='File to write to')
+@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help='Quiet mode, only output error messages')
+@cli.subcommand('Generates an RGB Light breathing table header.')
+def generate_rgb_breathe_table(cli):
+    """Generate a rgblight_breathe_table.h file containing a breathing LUT for RGB Lighting (Underglow) feature.
+    """
+    breathe_values = [0] * 256
+    for pos in range(0, 256):
+        breathe_values[pos] = (int)((math.exp(math.sin((pos/255) * math.pi)) - cli.args.center / math.e) * (cli.args.max / (math.e - 1 / math.e)))  # noqa: yapf insists there be no whitespace around /
+
+    values_template = ''
+    for s in range(0, 3):
+        step = 1 << s
+
+        values_template += '#if RGBLIGHT_BREATHE_TABLE_SIZE == {}\n'.format(256 >> s)
+
+        for pos in range(0, 256, step):
+            values_template += '    ' if pos % 8 == 0 else ''
+            values_template += '0x{:02X}'.format(breathe_values[pos])
+            values_template += ',' if (pos + step) < 256 else ''
+            values_template += '\n' if (pos+step) % 8 == 0 else ' '  # noqa: yapf insists there be no whitespace around +
+
+        values_template += '#endif'
+        values_template += '\n\n' if s < 2 else ''
+
+    table_template = '''#pragma once
+
+#define RGBLIGHT_EFFECT_BREATHE_TABLE
+
+// clang-format off
+
+// Breathing center: {0:.2f}
+// Breathing max:    {1:d}
+
+const uint8_t PROGMEM rgblight_effect_breathe_table[] = {{
+{2}
+}};
+
+static const int table_scale = 256 / sizeof(rgblight_effect_breathe_table);
+'''.format(cli.args.center, cli.args.max, values_template)
+
+    if cli.args.output:
+        cli.args.output.parent.mkdir(parents=True, exist_ok=True)
+        if cli.args.output.exists():
+            cli.args.output.replace(cli.args.output.name + '.bak')
+        cli.args.output.write_text(table_template)
+
+        if not cli.args.quiet:
+            cli.log.info('Wrote header to %s.', cli.args.output)
+    else:
+        print(table_template)
diff --git a/lib/python/qmk/tests/test_cli_commands.py b/lib/python/qmk/tests/test_cli_commands.py
index 99ec596083..08e80f2c95 100644
--- a/lib/python/qmk/tests/test_cli_commands.py
+++ b/lib/python/qmk/tests/test_cli_commands.py
@@ -190,3 +190,10 @@ def test_clean():
     result = check_subcommand('clean', '-a')
     check_returncode(result)
     assert result.stdout.count('done') == 2
+
+
+def test_generate_rgb_breathe_table():
+    result = check_subcommand("generate-rgb-breathe-table", "-c", "1.2", "-m", "127")
+    check_returncode(result)
+    assert 'Breathing center: 1.2' in result.stdout
+    assert 'Breathing max:    127' in result.stdout
diff --git a/quantum/rgblight_breathe_table.h b/quantum/rgblight_breathe_table.h
index a438332bd3..30245318b6 100644
--- a/quantum/rgblight_breathe_table.h
+++ b/quantum/rgblight_breathe_table.h
@@ -1,468 +1,117 @@
-#ifndef RGBLIGHT_EFFECT_BREATHE_TABLE
+#pragma once
+
 #define RGBLIGHT_EFFECT_BREATHE_TABLE
 
-const uint8_t rgblight_effect_breathe_table[] PROGMEM = {
-/* #define RGBLIGHT_EFFECT_BREATHE_CENTER   1.85 */
-/* #define RGBLIGHT_EFFECT_BREATHE_MAX      255 */
+// clang-format off
+
+// Breathing center: 1.85
+// Breathing max:    255
 
+const uint8_t PROGMEM rgblight_effect_breathe_table[] = {
 #if RGBLIGHT_BREATHE_TABLE_SIZE == 256
-    0x22,
-    0x23,
-    0x25,
-    0x26,
-    0x28,
-    0x29,
-    0x2a,
-    0x2c,
-    0x2d,
-    0x2f,
-    0x30,
-    0x32,
-    0x33,
-    0x35,
-    0x36,
-    0x38,
-    0x3a,
-    0x3b,
-    0x3d,
-    0x3e,
-    0x40,
-    0x42,
-    0x43,
-    0x45,
-    0x47,
-    0x49,
-    0x4a,
-    0x4c,
-    0x4e,
-    0x50,
-    0x51,
-    0x53,
-    0x55,
-    0x57,
-    0x59,
-    0x5a,
-    0x5c,
-    0x5e,
-    0x60,
-    0x62,
-    0x64,
-    0x66,
-    0x68,
-    0x69,
-    0x6b,
-    0x6d,
-    0x6f,
-    0x71,
-    0x73,
-    0x75,
-    0x77,
-    0x79,
-    0x7b,
-    0x7d,
-    0x7f,
-    0x81,
-    0x83,
-    0x85,
-    0x87,
-    0x89,
-    0x8a,
-    0x8c,
-    0x8e,
-    0x90,
-    0x92,
-    0x94,
-    0x96,
-    0x98,
-    0x9a,
-    0x9c,
-    0x9e,
-    0x9f,
-    0xa1,
-    0xa3,
-    0xa5,
-    0xa7,
-    0xa8,
-    0xaa,
-    0xac,
-    0xae,
-    0xaf,
-    0xb1,
-    0xb3,
-    0xb4,
-    0xb6,
-    0xb8,
-    0xb9,
-    0xbb,
-    0xbc,
-    0xbe,
-    0xbf,
-    0xc1,
-    0xc2,
-    0xc3,
-    0xc5,
-    0xc6,
-    0xc7,
-    0xc9,
-    0xca,
-    0xcb,
-    0xcc,
-    0xcd,
-    0xce,
-    0xd0,
-    0xd1,
-    0xd2,
-    0xd2,
-    0xd3,
-    0xd4,
-    0xd5,
-    0xd6,
-    0xd7,
-    0xd7,
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-    0xd9,
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-    0xda,
-    0xda,
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-    0xdb,
-    0xdb,
-    0xdc,
-    0xdc,
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-    0xdd,
-    0xdc,
-    0xdc,
-    0xdc,
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-    0xdb,
-    0xdb,
-    0xdb,
-    0xda,
-    0xda,
-    0xd9,
-    0xd9,
-    0xd8,
-    0xd7,
-    0xd7,
-    0xd6,
-    0xd5,
-    0xd4,
-    0xd3,
-    0xd2,
-    0xd2,
-    0xd1,
-    0xd0,
-    0xce,
-    0xcd,
-    0xcc,
-    0xcb,
-    0xca,
-    0xc9,
-    0xc7,
-    0xc6,
-    0xc5,
-    0xc3,
-    0xc2,
-    0xc1,
-    0xbf,
-    0xbe,
-    0xbc,
-    0xbb,
-    0xb9,
-    0xb8,
-    0xb6,
-    0xb4,
-    0xb3,
-    0xb1,
-    0xaf,
-    0xae,
-    0xac,
-    0xaa,
-    0xa8,
-    0xa7,
-    0xa5,
-    0xa3,
-    0xa1,
-    0x9f,
-    0x9e,
-    0x9c,
-    0x9a,
-    0x98,
-    0x96,
-    0x94,
-    0x92,
-    0x90,
-    0x8e,
-    0x8c,
-    0x8a,
-    0x89,
-    0x87,
-    0x85,
-    0x83,
-    0x81,
-    0x7f,
-    0x7d,
-    0x7b,
-    0x79,
-    0x77,
-    0x75,
-    0x73,
-    0x71,
-    0x6f,
-    0x6d,
-    0x6b,
-    0x69,
-    0x68,
-    0x66,
-    0x64,
-    0x62,
-    0x60,
-    0x5e,
-    0x5c,
-    0x5a,
-    0x59,
-    0x57,
-    0x55,
-    0x53,
-    0x51,
-    0x50,
-    0x4e,
-    0x4c,
-    0x4a,
-    0x49,
-    0x47,
-    0x45,
-    0x43,
-    0x42,
-    0x40,
-    0x3e,
-    0x3d,
-    0x3b,
-    0x3a,
-    0x38,
-    0x36,
-    0x35,
-    0x33,
-    0x32,
-    0x30,
-    0x2f,
-    0x2d,
-    0x2c,
-    0x2a,
-    0x29,
-    0x28,
-    0x26,
-    0x25,
-    0x23,
-    0x22
-#endif /* 256 bytes table */
+    0x22, 0x23, 0x25, 0x26, 0x28, 0x29, 0x2A, 0x2C,
+    0x2D, 0x2F, 0x30, 0x32, 0x33, 0x35, 0x36, 0x38,
+    0x3A, 0x3B, 0x3D, 0x3E, 0x40, 0x42, 0x43, 0x45,
+    0x47, 0x49, 0x4A, 0x4C, 0x4E, 0x50, 0x51, 0x53,
+    0x55, 0x57, 0x59, 0x5A, 0x5C, 0x5E, 0x60, 0x62,
+    0x64, 0x66, 0x68, 0x69, 0x6B, 0x6D, 0x6F, 0x71,
+    0x73, 0x75, 0x77, 0x79, 0x7B, 0x7D, 0x7F, 0x81,
+    0x83, 0x85, 0x87, 0x89, 0x8A, 0x8C, 0x8E, 0x90,
+    0x92, 0x94, 0x96, 0x98, 0x9A, 0x9C, 0x9E, 0x9F,
+    0xA1, 0xA3, 0xA5, 0xA7, 0xA8, 0xAA, 0xAC, 0xAE,
+    0xAF, 0xB1, 0xB3, 0xB4, 0xB6, 0xB8, 0xB9, 0xBB,
+    0xBC, 0xBE, 0xBF, 0xC1, 0xC2, 0xC3, 0xC5, 0xC6,
+    0xC7, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xD0,
+    0xD1, 0xD2, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
+    0xD7, 0xD8, 0xD9, 0xD9, 0xDA, 0xDA, 0xDB, 0xDB,
+    0xDB, 0xDC, 0xDC, 0xDC, 0xDC, 0xDC, 0xDD, 0xDD,
+    0xDD, 0xDD, 0xDC, 0xDC, 0xDC, 0xDC, 0xDC, 0xDB,
+    0xDB, 0xDB, 0xDA, 0xDA, 0xD9, 0xD9, 0xD8, 0xD7,
+    0xD7, 0xD6, 0xD5, 0xD4, 0xD3, 0xD2, 0xD2, 0xD1,
+    0xD0, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA, 0xC9, 0xC7,
+    0xC6, 0xC5, 0xC3, 0xC2, 0xC1, 0xBF, 0xBE, 0xBC,
+    0xBB, 0xB9, 0xB8, 0xB6, 0xB4, 0xB3, 0xB1, 0xAF,
+    0xAE, 0xAC, 0xAA, 0xA8, 0xA7, 0xA5, 0xA3, 0xA1,
+    0x9F, 0x9E, 0x9C, 0x9A, 0x98, 0x96, 0x94, 0x92,
+    0x90, 0x8E, 0x8C, 0x8A, 0x89, 0x87, 0x85, 0x83,
+    0x81, 0x7F, 0x7D, 0x7B, 0x79, 0x77, 0x75, 0x73,
+    0x71, 0x6F, 0x6D, 0x6B, 0x69, 0x68, 0x66, 0x64,
+    0x62, 0x60, 0x5E, 0x5C, 0x5A, 0x59, 0x57, 0x55,
+    0x53, 0x51, 0x50, 0x4E, 0x4C, 0x4A, 0x49, 0x47,
+    0x45, 0x43, 0x42, 0x40, 0x3E, 0x3D, 0x3B, 0x3A,
+    0x38, 0x36, 0x35, 0x33, 0x32, 0x30, 0x2F, 0x2D,
+    0x2C, 0x2A, 0x29, 0x28, 0x26, 0x25, 0x23, 0x22
+#endif
 
 #if RGBLIGHT_BREATHE_TABLE_SIZE == 128
-    0x22,
-    0x25,
-    0x28,
-    0x2a,
-    0x2d,
-    0x30,
-    0x33,
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-    0x87,
-    0x8a,
-    0x8e,
-    0x92,
-    0x96,
-    0x9a,
-    0x9e,
-    0xa1,
-    0xa5,
-    0xa8,
-    0xac,
-    0xaf,
-    0xb3,
-    0xb6,
-    0xb9,
-    0xbc,
-    0xbf,
-    0xc2,
-    0xc5,
-    0xc7,
-    0xca,
-    0xcc,
-    0xce,
-    0xd1,
-    0xd2,
-    0xd4,
-    0xd6,
-    0xd7,
-    0xd9,
-    0xda,
-    0xdb,
-    0xdb,
-    0xdc,
-    0xdc,
-    0xdd,
-    0xdd,
-    0xdc,
-    0xdc,
-    0xdc,
-    0xdb,
-    0xda,
-    0xd9,
-    0xd8,
-    0xd7,
-    0xd5,
-    0xd3,
-    0xd2,
-    0xd0,
-    0xcd,
-    0xcb,
-    0xc9,
-    0xc6,
-    0xc3,
-    0xc1,
-    0xbe,
-    0xbb,
-    0xb8,
-    0xb4,
-    0xb1,
-    0xae,
-    0xaa,
-    0xa7,
-    0xa3,
-    0x9f,
-    0x9c,
-    0x98,
-    0x94,
-    0x90,
-    0x8c,
-    0x89,
-    0x85,
-    0x81,
-    0x7d,
-    0x79,
-    0x75,
-    0x71,
-    0x6d,
-    0x69,
-    0x66,
-    0x62,
-    0x5e,
-    0x5a,
-    0x57,
-    0x53,
-    0x50,
-    0x4c,
-    0x49,
-    0x45,
-    0x42,
-    0x3e,
-    0x3b,
-    0x38,
-    0x35,
-    0x32,
-    0x2f,
-    0x2c,
-    0x29,
-    0x26,
-    0x23
-#endif /* 128 bytes table */
+    0x22, 0x25, 0x28, 0x2A,
+    0x2D, 0x30, 0x33, 0x36,
+    0x3A, 0x3D, 0x40, 0x43,
+    0x47, 0x4A, 0x4E, 0x51,
+    0x55, 0x59, 0x5C, 0x60,
+    0x64, 0x68, 0x6B, 0x6F,
+    0x73, 0x77, 0x7B, 0x7F,
+    0x83, 0x87, 0x8A, 0x8E,
+    0x92, 0x96, 0x9A, 0x9E,
+    0xA1, 0xA5, 0xA8, 0xAC,
+    0xAF, 0xB3, 0xB6, 0xB9,
+    0xBC, 0xBF, 0xC2, 0xC5,
+    0xC7, 0xCA, 0xCC, 0xCE,
+    0xD1, 0xD2, 0xD4, 0xD6,
+    0xD7, 0xD9, 0xDA, 0xDB,
+    0xDB, 0xDC, 0xDC, 0xDD,
+    0xDD, 0xDC, 0xDC, 0xDC,
+    0xDB, 0xDA, 0xD9, 0xD8,
+    0xD7, 0xD5, 0xD3, 0xD2,
+    0xD0, 0xCD, 0xCB, 0xC9,
+    0xC6, 0xC3, 0xC1, 0xBE,
+    0xBB, 0xB8, 0xB4, 0xB1,
+    0xAE, 0xAA, 0xA7, 0xA3,
+    0x9F, 0x9C, 0x98, 0x94,
+    0x90, 0x8C, 0x89, 0x85,
+    0x81, 0x7D, 0x79, 0x75,
+    0x71, 0x6D, 0x69, 0x66,
+    0x62, 0x5E, 0x5A, 0x57,
+    0x53, 0x50, 0x4C, 0x49,
+    0x45, 0x42, 0x3E, 0x3B,
+    0x38, 0x35, 0x32, 0x2F,
+    0x2C, 0x29, 0x26, 0x23
+#endif
 
 #if RGBLIGHT_BREATHE_TABLE_SIZE == 64
-    0x22,
-    0x28,
-    0x2d,
-    0x33,
-    0x3a,
-    0x40,
-    0x47,
-    0x4e,
-    0x55,
-    0x5c,
-    0x64,
-    0x6b,
-    0x73,
-    0x7b,
-    0x83,
-    0x8a,
-    0x92,
-    0x9a,
-    0xa1,
-    0xa8,
-    0xaf,
-    0xb6,
-    0xbc,
-    0xc2,
-    0xc7,
-    0xcc,
-    0xd1,
-    0xd4,
-    0xd7,
-    0xda,
-    0xdb,
-    0xdc,
-    0xdd,
-    0xdc,
-    0xdb,
-    0xd9,
-    0xd7,
-    0xd3,
-    0xd0,
-    0xcb,
-    0xc6,
-    0xc1,
-    0xbb,
-    0xb4,
-    0xae,
-    0xa7,
-    0x9f,
-    0x98,
-    0x90,
-    0x89,
-    0x81,
-    0x79,
-    0x71,
-    0x69,
-    0x62,
-    0x5a,
-    0x53,
-    0x4c,
-    0x45,
-    0x3e,
-    0x38,
-    0x32,
-    0x2c,
-    0x26
-#endif /* 64 bytes table */
+    0x22, 0x28,
+    0x2D, 0x33,
+    0x3A, 0x40,
+    0x47, 0x4E,
+    0x55, 0x5C,
+    0x64, 0x6B,
+    0x73, 0x7B,
+    0x83, 0x8A,
+    0x92, 0x9A,
+    0xA1, 0xA8,
+    0xAF, 0xB6,
+    0xBC, 0xC2,
+    0xC7, 0xCC,
+    0xD1, 0xD4,
+    0xD7, 0xDA,
+    0xDB, 0xDC,
+    0xDD, 0xDC,
+    0xDB, 0xD9,
+    0xD7, 0xD3,
+    0xD0, 0xCB,
+    0xC6, 0xC1,
+    0xBB, 0xB4,
+    0xAE, 0xA7,
+    0x9F, 0x98,
+    0x90, 0x89,
+    0x81, 0x79,
+    0x71, 0x69,
+    0x62, 0x5A,
+    0x53, 0x4C,
+    0x45, 0x3E,
+    0x38, 0x32,
+    0x2C, 0x26
+#endif
 };
 
 static const int table_scale = 256 / sizeof(rgblight_effect_breathe_table);
-
-#endif /* RGBLIGHT_EFFECT_BREATHE_TABLE */
diff --git a/util/rgblight_breathing_table_calc.c b/util/rgblight_breathing_table_calc.c
deleted file mode 100644
index fc4d49ea58..0000000000
--- a/util/rgblight_breathing_table_calc.c
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// calculate rgblight_effect_breathe_table[] values
-//
-// this is host program for quantum/rgblight.c:void rgblight_effect_breathing();
-//
-// example:
-//  $ edit util/rgblight_breathing_table_calc.c
-//  $ cc -o util/rgblight_breathing_table_calc util/rgblight_breathing_table_calc.c
-//  $ ./util/rgblight_breathing_table_calc > keyboards/KEYBOARD_NAME/keymaps/KEYMAP_NAME/rgblight_breathe_table.h
-//
-#include <stdio.h>
-#include <math.h>
-#include <stdint.h>
-
-/// customize breeathing effect part ///////////////////////////
-#define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85  // 1 to 2.7
-#define RGBLIGHT_EFFECT_BREATHE_MAX    255   // 0 to 255
-////////////////////////////////////////////////////////////////
-
-int main(void) {
-    int pos, step;
-    int table[256];
-    for (pos = 0; pos < 256; pos ++ ) {
-        table[pos] = (uint8_t)(
-              (exp(sin((pos/255.0)*M_PI))- RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)
-              * (RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E))
-              );
-    }
-    printf("#ifndef RGBLIGHT_EFFECT_BREATHE_TABLE\n");
-    printf("#define RGBLIGHT_EFFECT_BREATHE_TABLE\n\n");
-    printf("const uint8_t rgblight_effect_breathe_table[] PROGMEM = {\n");
-    printf("  /* #define RGBLIGHT_EFFECT_BREATHE_CENTER   %.2f */\n", RGBLIGHT_EFFECT_BREATHE_CENTER);
-    printf("  /* #define RGBLIGHT_EFFECT_BREATHE_MAX      %d */\n", RGBLIGHT_EFFECT_BREATHE_MAX);
-
-    for (int s = 0, step = (1<<s); s < 3 ; s += 1, step = (1<<s) ) {
-        printf("\n #if RGBLIGHT_BREATHE_TABLE_SIZE == %d\n",
-               s == 0 ? 256:(s== 1 ? 128: 64));
-        for (pos = 0; pos < 256; pos += step ) {
-            printf("  0x%x%s", table[pos], (pos+step)>=256?"":"," );
-            if ((pos+step) % 8 == 0)
-                printf("\n");
-        }
-        printf(" #endif /* %d bytes table */\n", s == 0 ? 256:(s== 1 ? 128: 64));
-    }
-    printf("};\n");
-    printf("\nstatic const int table_scale = 256/sizeof(rgblight_effect_breathe_table);\n");
-    printf("\n#endif /* RGBLIGHT_EFFECT_BREATHE_TABLE */\n");
-    return 0;
-}