From f4eb75a1d941d8f6629e03a5313c04bf8ebf189e Mon Sep 17 00:00:00 2001
From: "Adam D. Ruppe" <destructionator@gmail.com>
Date: Mon, 15 Sep 2025 09:21:48 -0400
Subject: [PATCH] load this one bmp irc sent me

---
 bmp.d | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/bmp.d b/bmp.d
index 61f6aec..ff7f4b7 100644
--- a/bmp.d
+++ b/bmp.d
@@ -421,10 +421,18 @@ MemoryImage readBmpIndirect(scope void delegate(void*, size_t) fread, bool lookF
 
 		return img;
 	} else {
-		if (compression != 0) throw new Exception("invalid bitmap compression");
+		if (compression != 0 && compression != 3) throw new Exception("unsupported bitmap compression");
 		// true color image
 		auto img = new TrueColorImage(width, height);
 
+		if(compression == 3)
+		foreach(idx; 0 .. 3) {
+			// so tbh I don't know what this actually is, it looks like an rgb mask, but why is it here?
+			// is this common or just the one file i happen to have?
+			// is there some header byte im missing?
+			read4();
+		}
+
 		// no palette, so straight into the data
 		int offsetStart = width * height * 4;
 		int bytesPerPixel = 4;