From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 6 Feb 2021 22:14:14 +0000 (+0200)
Subject: Only mark changed fields dirty when unloading a sampler
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=d99f756830d39437d88e6cc7af034c3074b0bd86

Only mark changed fields dirty when unloading a sampler
---

diff --git a/source/sampler.cpp b/source/sampler.cpp
index cc54901b..5375d17d 100644
--- a/source/sampler.cpp
+++ b/source/sampler.cpp
@@ -217,9 +217,23 @@ void Sampler::unbind_from(unsigned i)
 
 void Sampler::unload()
 {
-	// TODO check which params actually need refreshing
-	if(!owner->get_id())
-		dirty_params = -1;
+	if(owner && !owner->get_id())
+	{
+		if(min_filter!=NEAREST_MIPMAP_LINEAR)
+			dirty_params |= MIN_FILTER;
+		if(mag_filter!=LINEAR)
+			dirty_params |= MAG_FILTER;
+		if(max_anisotropy!=1.0f)
+			dirty_params |= MAX_ANISOTROPY;
+		if(wrap_s!=REPEAT)
+			dirty_params |= WRAP_S;
+		if(wrap_t!=REPEAT)
+			dirty_params |= WRAP_T;
+		if(wrap_r!=REPEAT)
+			dirty_params |= WRAP_R;
+		if(compare || cmp_func!=LEQUAL)
+			dirty_params |= COMPARE;
+	}
 }