From 227095a4f710ac6afd43f0a7e8b296f188cf20be Mon Sep 17 00:00:00 2001
From: David Luevano Alvarado <david@luevano.xyz>
Date: Tue, 31 May 2022 21:11:46 -0600
Subject: add working gif maker

---
 .../gdgifexporter/gif-lzw/lsbbitpacker.gd          | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/addons/GifMaker/godot-gdgifexporter/gdgifexporter/gif-lzw/lsbbitpacker.gd

(limited to 'src/addons/GifMaker/godot-gdgifexporter/gdgifexporter/gif-lzw/lsbbitpacker.gd')

diff --git a/src/addons/GifMaker/godot-gdgifexporter/gdgifexporter/gif-lzw/lsbbitpacker.gd b/src/addons/GifMaker/godot-gdgifexporter/gdgifexporter/gif-lzw/lsbbitpacker.gd
new file mode 100644
index 0000000..3141d09
--- /dev/null
+++ b/src/addons/GifMaker/godot-gdgifexporter/gdgifexporter/gif-lzw/lsbbitpacker.gd
@@ -0,0 +1,31 @@
+extends Reference
+
+
+class LSBLZWBitPacker:
+	var bit_index: int = 0
+	var stream: int = 0
+
+	var chunks: PoolByteArray = PoolByteArray([])
+
+	func put_byte():
+		chunks.append(stream & 0xff)
+		bit_index -= 8
+		stream >>= 8
+
+	func write_bits(value: int, bits_count: int) -> void:
+		value &= (1 << bits_count) - 1
+		value <<= bit_index
+		stream |= value
+		bit_index += bits_count
+		while bit_index >= 8:
+			self.put_byte()
+
+	func pack() -> PoolByteArray:
+		if bit_index != 0:
+			self.put_byte()
+		return chunks
+
+	func reset() -> void:
+		bit_index = 0
+		stream = 0
+		chunks = PoolByteArray([])
-- 
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