Drop Id tags and copyright notices from files

[libs/gl.git] / source / extension.cpp

diff --git a/source/extension.cpp b/source/extension.cpp
index 9ed1777914b9076c89f8c55ba58f0a6012ca54db..f18067989a8ba97c1a71759ad6a323c00ebdb2fd 100644 (file)
--- a/source/extension.cpp
+++ b/source/extension.cpp
@@ -1,10 +1,3 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007, 2009-2010  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <set>
 #ifndef WIN32
 #define GLX_GLXEXT_PROTOTYPES
@@ -16,10 +9,13 @@ Distributed under the LGPL
 #include "arb_vertex_buffer_object.h"
 #include "arb_vertex_program.h"
 #include "arb_vertex_shader.h"
+#include "ext_framebuffer_blit.h"
+#include "ext_framebuffer_multisample.h"
 #include "ext_framebuffer_object.h"
 #include "except.h"
 #include "extension.h"
 #include "gl.h"
+#include "nv_primitive_restart.h"
 #include "version_1_2.h"
 #include "version_1_3.h"
 
@@ -51,8 +47,14 @@ bool is_supported(const string &ext)
                        init_arb_vertex_program();
                if(extensions.count("GL_EXT_framebuffer_object"))
                        init_ext_framebuffer_object();
+               if(extensions.count("GL_EXT_framebuffer_blit"))
+                       init_ext_framebuffer_blit();
+               if(extensions.count("GL_EXT_framebuffer_multisample"))
+                       init_ext_framebuffer_multisample();
                if(extensions.count("GL_ARB_vertex_buffer_object"))
                        init_arb_vertex_buffer_object();
+               if(extensions.count("GL_NV_primitive_restart"))
+                       init_nv_primitive_restart();
 
                init_done = true;
        }
@@ -60,6 +62,12 @@ 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 +92,15 @@ 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));
 }