X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=rans.shader;h=925543ef7dfa284d0fddbce411a61444438dbc9f;hb=dc3e3a2a88b2b1f0e177f613a8b355116e6020ff;hp=05ac1206d1961ac3732882fa152935f4bc884fde;hpb=b8401c220bbb581e2c1334eba12f58b25eb9103b;p=narabu

diff --git a/rans.shader b/rans.shader
index 05ac120..925543e 100644
--- a/rans.shader
+++ b/rans.shader
@@ -97,7 +97,9 @@ void encode_coeff(int signed_k, uint sign_bias, inout RansEncoder enc)
 	uint k = abs(signed_k);
 
 	if (k >= ESCAPE_LIMIT) {
-		// ... boring stuff here
+		// Put the coefficient as a 1/(2^12) symbol _before_
+		// the 255 coefficient, since the decoder will read the
+		// 255 coefficient first.
 		RansEncPut(enc.rans, enc.rans_offset, k, 1, prob_bits);
 		k = ESCAPE_LIMIT;
 	}