X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fextension.cpp;h=bab160d5196fe71519f8fbeca3e2680f9bbc1032;hb=5a07a1fdfa420d257221228676a3c76a5eb4f44f;hp=9ed1777914b9076c89f8c55ba58f0a6012ca54db;hpb=b617c5d7b5283ad260a77f01e42e6170cabbc03d;p=libs%2Fgl.git

diff --git a/source/extension.cpp b/source/extension.cpp
index 9ed17779..bab160d5 100644
--- a/source/extension.cpp
+++ b/source/extension.cpp
@@ -60,6 +60,12 @@ bool is_supported(const string &ext)
 	return extensions.count(ext);
 }
 
+void require_extension(const string &ext)
+{
+	if(!is_supported(ext))
+		throw UnsupportedExtension(ext);
+}
+
 const Version &get_gl_version()
 {
 	static Version version;
@@ -84,16 +90,15 @@ const Version &get_gl_version()
 	return version;
 }
 
-void require_extension(const string &ext)
+bool is_version_at_least(unsigned a, unsigned b)
 {
-	if(!is_supported(ext))
-		throw UnsupportedExtension(ext);
+	const Version &ver = get_gl_version();
+	return (ver.major>a || (ver.major==a && ver.minor>=b));
 }
 
 void require_version(unsigned a, unsigned b)
 {
-	const Version &ver = get_gl_version();
-	if(ver.major<a || (ver.major==a && ver.minor<b))
+	if(!is_version_at_least(a, b))
 		throw UnsupportedExtension(format("OpenGL %d.%d", a, b));
 }