def test_attach(self):
renderbuffer = gl.Renderbuffer()
renderbuffer.set_storage(gl.RenderbufferFormat.RGBA8, (4, 4))
renderbuffer_refcount = sys.getrefcount(renderbuffer)
framebuffer = gl.Framebuffer(((0, 0), (4, 4)))
framebuffer.attach_renderbuffer(gl.Framebuffer.ColorAttachment(0), renderbuffer)
self.assertEqual(len(framebuffer.attachments), 1)
self.assertIs(framebuffer.attachments[0], renderbuffer)
self.assertEqual(sys.getrefcount(renderbuffer), renderbuffer_refcount + 1)
def test_read_image(self):
renderbuffer = gl.Renderbuffer()
renderbuffer.set_storage(gl.RenderbufferFormat.RGBA8, (4, 4))
framebuffer = gl.Framebuffer(((0, 0), (4, 4)))
framebuffer.attach_renderbuffer(gl.Framebuffer.ColorAttachment(0),
renderbuffer)
gl.Renderer.clear_color = Color4(1.0, 0.5, 0.75)
framebuffer.clear(gl.FramebufferClear.COLOR)
a = Image2D(PixelFormat.RGBA8_UNORM)
framebuffer.read(Range2Di.from_size((1, 1), (2, 2)), a)
self.assertEqual(a.size, Vector2i(2, 2))
# This tests Image internals because this is the only way how to get a
# non-empty Image ATM (sorry)
# TODO: remove once Image can be created non-empty
a_refcount = sys.getrefcount(a)
data = a.data
self.assertIs(data.owner, a)
self.assertEqual(sys.getrefcount(a), a_refcount + 1)
del data
self.assertEqual(sys.getrefcount(a), a_refcount)
pixels = a.pixels
self.assertIs(pixels.owner, a)
self.assertEqual(sys.getrefcount(a), a_refcount + 1)
self.assertEqual(ord(a.pixels[0, 0, 0]), 0xff)
self.assertEqual(ord(a.pixels[0, 1, 1]), 0x80)
self.assertEqual(ord(a.pixels[1, 0, 2]), 0xbf)
del pixels
self.assertEqual(sys.getrefcount(a), a_refcount)
view = ImageView2D(a)
self.assertEqual(view.size, (2, 2))
self.assertIs(view.owner, a)
self.assertEqual(sys.getrefcount(a), a_refcount + 1)
del view
self.assertEqual(sys.getrefcount(a), a_refcount)
mview = MutableImageView2D(a)
self.assertEqual(mview.size, (2, 2))
self.assertIs(mview.owner, a)
self.assertEqual(sys.getrefcount(a), a_refcount + 1)
del mview
self.assertEqual(sys.getrefcount(a), a_refcount)
def test_read_view(self):
renderbuffer = gl.Renderbuffer()
renderbuffer.set_storage(gl.RenderbufferFormat.RGBA8, (4, 4))
framebuffer = gl.Framebuffer(((0, 0), (4, 4)))
framebuffer.attach_renderbuffer(gl.Framebuffer.ColorAttachment(0), renderbuffer)
gl.Renderer.clear_color = Color4(1.0, 0.5, 0.75)
framebuffer.clear(gl.FramebufferClear.COLOR)
a = MutableImageView2D(PixelFormat.RGBA8_UNORM, (2, 2), bytearray(16))
framebuffer.read(Range2Di.from_size((1, 1), (2, 2)), a)
self.assertEqual(a.size, Vector2i(2, 2))
self.assertEqual(ord(a.pixels[0, 0, 0]), 0xff)
self.assertEqual(ord(a.pixels[0, 1, 1]), 0x80)
self.assertEqual(ord(a.pixels[1, 0, 2]), 0xbf)
def test_init(self):
renderbuffer = gl.Renderbuffer()
renderbuffer.set_storage(gl.RenderbufferFormat.RGBA8, (16, 16))
self.assertNotEqual(renderbuffer.id, 0)