From c07cd406cbe3a80869c657b1b0ce22088954cccb Mon Sep 17 00:00:00 2001
From: Haoyu Qiu <timothyqiu32@gmail.com>
Date: Sun, 12 Nov 2023 00:04:16 +0800
Subject: Fix crash when saving compressed image as JPG & WebP

---
 modules/webp/webp_common.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'modules/webp/webp_common.cpp')

diff --git a/modules/webp/webp_common.cpp b/modules/webp/webp_common.cpp
index bc34a25733..3a2ac5a90e 100644
--- a/modules/webp/webp_common.cpp
+++ b/modules/webp/webp_common.cpp
@@ -59,6 +59,10 @@ Vector<uint8_t> _webp_packer(const Ref<Image> &p_image, float p_quality, bool p_
 	compression_method = CLAMP(compression_method, 0, 6);
 
 	Ref<Image> img = p_image->duplicate();
+	if (img->is_compressed()) {
+		Error error = img->decompress();
+		ERR_FAIL_COND_V_MSG(error != OK, Vector<uint8_t>(), "Couldn't decompress image.");
+	}
 	if (img->detect_alpha()) {
 		img->convert(Image::FORMAT_RGBA8);
 	} else {
-- 
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