From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 17 Nov 2014 16:24:34 +0000 (+0200)
Subject: Always update program uniforms if uniform names have changed
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=8dbd6316d277d2f9cbf85e7e61f2541421e01292

Always update program uniforms if uniform names have changed

It's possible for pu.used to be zero, in which case the original code
would never update it.
---

diff --git a/source/programdata.cpp b/source/programdata.cpp
index 65e660f0..4b39d196 100644
--- a/source/programdata.cpp
+++ b/source/programdata.cpp
@@ -265,14 +265,15 @@ void ProgramData::apply() const
 	Program::LayoutHash layout = prog->get_uniform_layout_hash();
 	ProgramUniforms &pu = programs[layout];
 
-	if((dirty&pu.used)|pu.dirty)
+	Mask force_dirty = (dirty==ALL_ONES ? ALL_ONES : 0U);
+	Mask affected = (dirty&pu.used) | force_dirty;
+	if(affected|pu.dirty)
 	{
 		/* If the global dirty flag affects this program, add it to per-program
 		dirty flags and clear the global flag.  A previously unseen program will
 		always cause this to happen. */
-		if(dirty&pu.used)
+		if(affected)
 		{
-			Mask force_dirty = (dirty==ALL_ONES ? ALL_ONES : 0U);
 			for(BlockMap::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 				i->second.dirty |= (dirty&i->second.used) | force_dirty;
 			for(ProgramMap::iterator i=programs.begin(); i!=programs.end(); ++i)