* Anisotropic texture filtering (from Echon)

git-svn-id: svn://svn.icculus.org/quake3/trunk@719 edf5b092-35ff-0310-97b2-ce42778d08ea

1 files changed, 25 insertions, 0 deletions

diff --git a/code/win32/win_glimp.c b/code/win32/win_glimp.c
index 4f97f04..f9b1289 100644
--- a/code/win32/win_glimp.c
+++ b/code/win32/win_glimp.c
@@ -1111,6 +1111,31 @@ static void GLW_InitExtensions( void )
 	{
 		ri.Printf( PRINT_ALL, "...WGL_3DFX_gamma_control not found\n" );
 	}
+
+	glConfig.textureFilterAnisotropic = qfalse;
+	if ( strstr( glConfig.extensions_string, "GL_EXT_texture_filter_anisotropic" ) )
+	{
+		if ( r_ext_texture_filter_anisotropic->integer ) {
+			qglGetIntegerv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &glConfig.maxAnisotropy );
+			if ( glConfig.maxAnisotropy <= 0 ) {
+				ri.Printf( PRINT_ALL, "...GL_EXT_texture_filter_anisotropic not properly supported!\n" );
+				glConfig.maxAnisotropy = 0;
+			}
+			else
+			{
+				ri.Printf( PRINT_ALL, "...using GL_EXT_texture_filter_anisotropic (max: %i)\n", glConfig.maxAnisotropy );
+				glConfig.textureFilterAnisotropic = qtrue;
+			}
+		}
+		else
+		{
+			ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_filter_anisotropic\n" );
+		}
+	}
+	else
+	{
+		ri.Printf( PRINT_ALL, "...GL_EXT_texture_filter_anisotropic not found\n" );
+	}
 }
 
 /*