X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftexenv.cpp;fp=source%2Ftexenv.cpp;h=51adf9fb4aee45f1aa40e93effbad084e3c3b4d4;hb=126161d1d44ab9503bc747d24a07b7b9d15e527a;hp=ff9ea197b982cdb6a092137f14c5c8f8709e2d68;hpb=dcd8bd3a16a4af8e77aa84877b3f8a4fb03b8c7e;p=libs%2Fgl.git

diff --git a/source/texenv.cpp b/source/texenv.cpp
index ff9ea197..51adf9fb 100644
--- a/source/texenv.cpp
+++ b/source/texenv.cpp
@@ -15,18 +15,33 @@ const TexEnv &TexEnv::default_object()
 	return obj;
 }
 
+void TexEnv::update_parameter(int mask) const
+{
+	if(TexUnit::current().get_texenv()!=this)
+	{
+		TexUnit *unit = TexUnit::find_unit(this);
+		if(!unit)
+			return;
+
+		unit->bind();
+	}
+
+	if(mask&MODE)
+		glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode);
+	if(mask&COLOR)
+		glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, &color.r);
+}
+
 void TexEnv::set_mode(TexEnvMode m)
 {
 	mode = m;
-	if(TexUnit::current().get_texenv()==this)
-		glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode);
+	update_parameter(MODE);
 }
 
 void TexEnv::set_color(const Color &c)
 {
 	color = c;
-	if(TexUnit::current().get_texenv()==this)
-		glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, &color.r);
+	update_parameter(COLOR);
 }
 
 void TexEnv::bind_to(unsigned i) const
@@ -35,8 +50,7 @@ void TexEnv::bind_to(unsigned i) const
 	if(unit.set_texenv(this))
 	{
 		unit.bind();
-		glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, mode);
-		glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, &color.r);
+		update_parameter(-1);
 	}
 }