From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 20 Jun 2018 10:38:16 +0000 (+0300)
Subject: Minor fixes to texture anisotropy handling
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=4cb33c263a00787a57531dfc41a4128bf34d7bee;p=libs%2Fgl.git

Minor fixes to texture anisotropy handling

Initialize the anisotropy parameter and don't try to set it unless the
extension is supported.
---

diff --git a/source/texture.cpp b/source/texture.cpp
index 1d2ece80..fb409e89 100644
--- a/source/texture.cpp
+++ b/source/texture.cpp
@@ -63,6 +63,7 @@ Texture::Texture(GLenum t, ResourceManager *m):
 	ifmt(RGB),
 	min_filter(NEAREST_MIPMAP_LINEAR),
 	mag_filter(LINEAR),
+	max_anisotropy(1.0f),
 	wrap_s(REPEAT),
 	wrap_t(REPEAT),
 	wrap_r(REPEAT),
@@ -220,7 +221,8 @@ void Texture::set_max_anisotropy(float a)
 	else if(a>1.0f)
 		static Require _req(EXT_texture_filter_anisotropic);
 	max_anisotropy = a;
-	update_parameter(MAX_ANISOTROPY);
+	if(EXT_texture_filter_anisotropic)
+		update_parameter(MAX_ANISOTROPY);
 }
 
 void Texture::set_wrap(TextureWrap w)