Merged default into minor

--HG--
branch : minor

src/modules/graphics/opengl/Graphics.cpp

@@ -1112,6 +1112,27 @@ double Graphics::getSystemLimit(SystemLimit limittype) const
 	return limit;
 }
 
+bool Graphics::isSupported(Support feature) const
+{
+	switch (feature)
+	{
+	case SUPPORT_HDR_CANVAS:
+		return Canvas::isFormatSupported(Canvas::FORMAT_HDR);
+	case SUPPORT_MULTI_CANVAS:
+		return Canvas::isMultiCanvasSupported();
+	case SUPPORT_DXT:
+		return Image::hasCompressedTextureSupport(image::CompressedData::FORMAT_DXT5);
+	case SUPPORT_BC5:
+		return Image::hasCompressedTextureSupport(image::CompressedData::FORMAT_BC5);
+	case SUPPORT_SRGB:
+		// sRGB support for the screen is guaranteed if it's supported as a
+		// Canvas format.
+		return Canvas::isFormatSupported(Canvas::FORMAT_SRGB);
+	default:
+		return false;
+	}
+}
+
 void Graphics::push()
 {
 	if (userMatrices == matrixLimit)