X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fextension.cpp;h=f18067989a8ba97c1a71759ad6a323c00ebdb2fd;hp=cd8c6297759d57494d8f372276e8a467a6d12d85;hb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8;hpb=c6c4fc39952e372eba1f44f2bc504428140f3d0e

diff --git a/source/extension.cpp b/source/extension.cpp
index cd8c6297..f1806798 100644
--- 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"
 
@@ -31,13 +27,13 @@ namespace GL {
 bool is_supported(const string &ext)
 {
 	static set<string> extensions;
-	static bool init_done=false;
+	static bool init_done = false;
 
 	if(!init_done)
 	{
-		if(const char *gl_ext=reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
+		if(const char *gl_ext = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)))
 		{
-			vector<string> exts=split(gl_ext);
+			vector<string> exts = split(gl_ext);
 			extensions.insert(exts.begin(), exts.end());
 		}
 
@@ -51,28 +47,40 @@ 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;
+		init_done = true;
 	}
 
 	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;
-	static bool init_done=false;
+	static bool init_done = false;
 
 	if(!init_done)
 	{
-		string gl_ver=reinterpret_cast<const char *>(glGetString(GL_VERSION));
-		vector<string> parts=split(gl_ver.substr(0, gl_ver.find(' ')), '.');
-		version.major=lexical_cast<unsigned>(parts[0]);
-		version.minor=lexical_cast<unsigned>(parts[1]);
+		string gl_ver = reinterpret_cast<const char *>(glGetString(GL_VERSION));
+		vector<string> parts = split(gl_ver.substr(0, gl_ver.find(' ')), '.');
+		version.major = lexical_cast<unsigned>(parts[0]);
+		version.minor = lexical_cast<unsigned>(parts[1]);
 
-		unsigned combined=version.major*0x100+version.minor;
+		unsigned combined = version.major*0x100+version.minor;
 		if(combined>=0x102)
 			init_version_1_2();
 		if(combined>=0x103)
@@ -84,23 +92,22 @@ 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));
 }
 
 ExtFunc *get_proc_address(const string &name)
 {
 #ifndef WIN32
-	return glXGetProcAddressARB(reinterpret_cast<const GLubyte *>(name.c_str()));
+	return glXGetProcAddressARB(reinterpret_cast<const unsigned char *>(name.c_str()));
 #else
 	return reinterpret_cast<ExtFunc *>(wglGetProcAddress(name.c_str()));
 #endif