TextureData.Pixels() and PixelsAt() lead to possible misuse of unsafe.Pointer

[neclepsio]

Both TextureData.Pixels() and TextureData.PixelsAt() return uintptr.
go-gl requires unsafe.Pointer when setting texture data, so the command is:

gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, tex.Width(), tex.Height(),
	0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(tex.Pixels()))

This requires a conversion from uintptr to unsafe.Pointer, that triggers a warning with go vet and other static analyzers due to it being unsafe (if I understand correctly, it's not).

Maybe Pixels and PixelsAt should return a pointer instead of uintptr?