From ff874612bad325e2f6b44ae895fa8d9628c4fd44 Mon Sep 17 00:00:00 2001
From: Farkal <Farkal@users.noreply.github.com>
Date: Mon, 10 Aug 2020 15:32:47 +0200
Subject: [PATCH] Allow to decode LONG8 (u64)

TileOffsets and TileByteCounts have the LONG8 type on bigtiff.
---
 src/decoder/ifd.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/decoder/ifd.rs b/src/decoder/ifd.rs
index 79c9e72..fae499a 100644
--- a/src/decoder/ifd.rs
+++ b/src/decoder/ifd.rs
@@ -343,6 +343,9 @@ impl Entry {
                 (Type::SRATIONAL, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
                     Ok(SRational(decoder.read_slong()?, decoder.read_slong()?))
                 }),
+                (Type::LONG8, n) => self.decode_offset(n, bo, limits, decoder, |decoder| {
+                    Ok(UnsignedBig(decoder.read_long8()?))
+                }),
                 (Type::ASCII, n) => {
                     let n = usize::try_from(n)?;
                     if n > limits.decoding_buffer_size {