From 516f4a0bd5d97b402a1b27682d2d5e6e5119e189 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Wed, 20 May 2026 17:32:01 -0700
Subject: [PATCH] Added notes about faster crc32() options

---
 src/stdlib/SDL_crc32.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/stdlib/SDL_crc32.c b/src/stdlib/SDL_crc32.c
index 8bad67dd76..a92bf02526 100644
--- a/src/stdlib/SDL_crc32.c
+++ b/src/stdlib/SDL_crc32.c
@@ -29,6 +29,12 @@
 /* NOTE: DO NOT CHANGE THIS ALGORITHM
    There is code that relies on this in the joystick code
 */
+/* If you're looking for a faster CRC32 implementation,
+   the crc32() in zlib is a convenient option.
+
+   This is also Zlib licensed and extremely fast:
+       https://github.com/corsix/fast-crc32
+*/
 
 static Uint32 crc32_for_byte(Uint32 r)
 {