Make FeatureAvailable array accessible to material renderers

New glext.h extension header and one new extension added.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3629 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/COpenGLExtensionHandler.h

@@ -299,6 +299,7 @@ static const char* const OpenGLFeatureStrings[] = {
 	"GL_EXT_texture_shared_exponent",
 	"GL_EXT_texture_snorm",
 	"GL_EXT_texture_sRGB",
+	"GL_EXT_texture_sRGB_decode",
 	"GL_EXT_texture_swizzle",
 	"GL_EXT_timer_query",
 	"GL_EXT_transform_feedback",
@@ -698,6 +699,7 @@ class COpenGLExtensionHandler
 		IRR_EXT_texture_shared_exponent,
 		IRR_EXT_texture_snorm,
 		IRR_EXT_texture_sRGB,
+		IRR_EXT_texture_sRGB_decode,
 		IRR_EXT_texture_swizzle,
 		IRR_EXT_timer_query,
 		IRR_EXT_transform_feedback,
@@ -1044,10 +1046,10 @@ class COpenGLExtensionHandler
 	void extGlGetQueryObjectiv(GLuint id, GLenum pname, GLint *params);
 	void extGlGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params);
 
-	protected:
 	// the global feature array
 	bool FeatureAvailable[IRR_OpenGL_Feature_Count];
 
+	protected:
 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)
 		PFNGLACTIVETEXTUREARBPROC pGlActiveTextureARB;
 		PFNGLCLIENTACTIVETEXTUREARBPROC	pGlClientActiveTextureARB;

source/Irrlicht/glext.h

@@ -29,9 +29,9 @@ extern "C" {
 */
 
 /* Header file version number, required by OpenGL ABI for Linux */
-/* glext.h last updated $Date: 2010-11-03 18:59:30 -0700 (Wed, 03 Nov 2010) $ */
+/* glext.h last updated $Date: 2010-12-09 02:15:08 -0800 (Thu, 09 Dec 2010) $ */
 /* Current version at http://www.opengl.org/registry/ */
-#define GL_GLEXT_VERSION 66
+#define GL_GLEXT_VERSION 67
 /* Function declaration macros - to move into glplatform.h */
 
 #if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
@@ -5026,6 +5026,12 @@ extern "C" {
 #define GL_DEPTH_CLAMP_FAR_AMD            0x901F
 #endif
 
+#ifndef GL_EXT_texture_sRGB_decode
+#define GL_TEXTURE_SRGB_DECODE_EXT        0x8A48
+#define GL_DECODE_EXT                     0x8A49
+#define GL_SKIP_DECODE_EXT                0x8A4A
+#endif
+
 
 /*************************************************************/
 
@@ -11031,6 +11037,10 @@ typedef void (APIENTRYP PFNGLVDPAUUNMAPSURFACESNVPROC) (GLsizei numSurface, cons
 #define GL_AMD_depth_clamp_separate 1
 #endif
 
+#ifndef GL_EXT_texture_sRGB_decode
+#define GL_EXT_texture_sRGB_decode 1
+#endif
+
 
 #ifdef __cplusplus
 }