init project

src/main/java/com/imyeyu/font/icon/ttf/FontBuffer.java

@@ -0,0 +1,64 @@
+package com.imyeyu.font.icon.ttf;
+
+import java.io.ByteArrayOutputStream;
+import java.nio.charset.StandardCharsets;
+
+/// TrueType 大端字节缓冲区
+///
+/// @author Codex
+/// @since 2026-07-13 16:26
+final class FontBuffer {
+
+	private final ByteArrayOutputStream out = new ByteArrayOutputStream();
+
+	void u8(int value) {
+		out.write(value & 0xFF);
+	}
+
+	void i16(int value) {
+		u16(value);
+	}
+
+	void u16(int value) {
+		out.write((value >>> 8) & 0xFF);
+		out.write(value & 0xFF);
+	}
+
+	void u32(long value) {
+		out.write((int) ((value >>> 24) & 0xFF));
+		out.write((int) ((value >>> 16) & 0xFF));
+		out.write((int) ((value >>> 8) & 0xFF));
+		out.write((int) (value & 0xFF));
+	}
+
+	void u64(long value) {
+		u32(value >>> 32);
+		u32(value);
+	}
+
+	void tag(String tag) {
+		byte[] bytes = tag.getBytes(StandardCharsets.US_ASCII);
+		for (int i = 0; i < 4; i++) {
+			u8(i < bytes.length ? bytes[i] : 32);
+		}
+	}
+
+	void bytes(byte[] bytes) {
+		out.writeBytes(bytes);
+	}
+
+	void pad4() {
+		while (out.size() % 4 != 0) {
+			u8(0);
+		}
+	}
+
+	int length() {
+		return out.size();
+	}
+
+	byte[] bytes() {
+		return out.toByteArray();
+	}
+}
+