def test_detach(self):
vert = VertexShader("A")
frag = FragmentShader("B")
program = Program(vert, frag)
program.detach(frag)
assert len(program.shaders) == 1
assert program.shaders[0].code == "A"
def test_setitem(self):
vert = VertexShader("")
frag = FragmentShader("")
program = Program(vert, frag)
with self.assertRaises(NameError):
program["A"] = 1
def test_uniform(self):
vert = VertexShader("uniform float A;")
frag = FragmentShader("uniform float A; uniform vec4 B;")
program = Program(vert, frag)
assert ("A", gl.GL_FLOAT) in program.all_uniforms
assert ("B", gl.GL_FLOAT_VEC4) in program.all_uniforms
assert len(program.all_uniforms) == 2
def test_init(self):
shader = VertexShader()
assert shader._handle == 0
assert shader._need_update is False
assert shader._valid is False
assert shader.code is None
assert shader.source is None
def test_set_attribute_vec4(self):
vert = VertexShader("attribute vec4 color;")
frag = FragmentShader("")
program = Program(vert, frag)
with self.assertRaises(ValueError):
program["color"] = np.array(3, dtype=np.float32)
program = Program(vert, frag)
with self.assertRaises(ValueError):
program["color"] = np.array((100, 5), dtype=np.float32)
program = Program(vert, frag)
program["color"] = ClientVertexBuffer(
np.zeros((100, 4), dtype=np.float32))
assert program._attributes["color"].count == 100
program = Program(vert, frag)
program["color"] = ClientVertexBuffer(
np.zeros((100, 1, 4), dtype=np.float32))
assert program._attributes["color"].count == 100
program = Program(vert, frag)
program["color"] = ClientVertexBuffer(
np.zeros(100, dtype=(np.float32, 4)))
assert program._attributes["color"].count == 100
def test_uniform(self):
vert = VertexShader("uniform float A;")
frag = FragmentShader("uniform float A; uniform vec4 B;")
program = Program(vert, frag)
assert program.uniforms[0].name == 'A'
assert program.uniforms[0].gtype == gl.GL_FLOAT
assert program.uniforms[1].name == 'B'
assert program.uniforms[1].gtype == gl.GL_FLOAT_VEC4
def test_attach(self):
vert = VertexShader("A")
frag = FragmentShader("B")
program = Program(vert)
program.attach(frag)
assert len(program.shaders) == 2
assert program.shaders[0].code == "A"
assert program.shaders[1].code == "B"
def test_setitem(self):
vert = VertexShader("")
frag = FragmentShader("")
program = Program(vert, frag)
def modifier(p):
p["A"] = 1
self.assertRaises(NameError, modifier, program)
def test_failed_build(self):
vert = VertexShader("A")
frag = FragmentShader("B")
program = Program(vert=vert)
self.assertRaises(RuntimeError, program.activate)
program = Program(frag=frag)
self.assertRaises(RuntimeError, program.activate)
def test_setitem(self):
vert = VertexShader("")
frag = FragmentShader("")
program = Program(vert, frag)
#with self.assertRaises(ValueError):
# program["A"] = 1
with use_log_level('error', record=True, print_msg=False):
self.assertRaises(KeyError, program.__setitem__, "A", 1)
def test_failed_build(self):
vert = VertexShader("A")
frag = FragmentShader("B")
program = Program(vert=vert)
program._need_create = False # fool program that it already exists
self.assertRaises(ValueError, program.activate)
program = Program(frag=frag)
program._need_create = False # fool program that it already exists
self.assertRaises(ValueError, program.activate)
def test_ignore_comments(self):
shader = VertexShader("""
attribute vec4 color; attribute float x;
// attribute float y;
attribute float z; //attribute float w;
""")
names = [attr[0] for attr in shader.attributes]
assert_in("color", names)
assert_in("x", names)
assert_in("z", names)
assert_not_in("y", names)
assert_not_in("w", names)
def test_set_vars(self):
vert = VertexShader("attribute vec4 color;")
frag = FragmentShader("")
program = Program(vert, frag)
arr = np.array((100, 5), dtype=np.float32)
assert_raises(ValueError, program.set_vars, arr)
dtype = np.dtype([('position', np.float32, 3),
('texcoord', np.float32, 2),
('color', np.float32, 4)])
data = np.zeros(100, dtype=dtype)
arr = VertexBuffer(data)
program.set_vars(arr)
assert_raises(TypeError, program.set_vars, 'hello')
program.set_vars(dict(color=arr, fake=arr))
def test_set_attribute_float(self):
vert = VertexShader("attribute float f;")
frag = FragmentShader("")
program = Program(vert, frag)
program["f"] = VertexBuffer(np.zeros(100, dtype=np.float32))
assert program._attributes["f"].count == 100
program = Program(vert, frag)
program["f"] = ClientVertexBuffer(
np.zeros((100, 1, 1), dtype=np.float32))
assert program._attributes["f"].count == 100
program = Program(vert, frag)
with self.assertRaises(ValueError):
program["f"] = np.zeros((100, 1, 1), dtype=np.float32)
def test_set_attribute_float(self):
vert = VertexShader("attribute float f;")
frag = FragmentShader("")
program = Program(vert, frag)
program["f"] = VertexBuffer(np.zeros(100, dtype=np.float32))
assert program._attributes["f"].count == 100
program = Program(vert, frag)
program.set_vars(f=ClientVertexBuffer(np.zeros((100, 1, 1),
dtype=np.float32)))
assert_raises(NameError, program.set_vars, junk='foo')
assert program._attributes["f"].count == 100
program = Program(vert, frag)
def modifier(p):
p["f"] = np.zeros((100, 1, 1), dtype=np.float32)
self.assertRaises(ValueError, modifier, program)
def test_uniform_array(self):
shader = VertexShader("uniform float color[2];")
uniforms = shader._get_uniforms()
assert uniforms == [("color[0]", gl.GL_FLOAT),
("color[1]", gl.GL_FLOAT)]
def test_attribute_float(self):
shader = VertexShader("attribute float color;")
attributes = shader._get_attributes()
assert attributes == [("color", gl.GL_FLOAT)]
def test_attribute_vec4(self):
shader = VertexShader("attribute vec4 color;")
attributes = shader._get_attributes()
assert attributes == [("color", gl.GL_FLOAT_VEC4)]
def test_attributes(self):
vert = VertexShader("attribute float A;")
frag = FragmentShader("")
program = Program(vert, frag)
assert program.attributes[0].name == 'A'
assert program.attributes[0].gtype == gl.GL_FLOAT
def test_setcode(self):
shader = VertexShader()
shader.set_code("")
assert shader._need_update
def test_uniform_vec4(self):
shader = VertexShader("uniform vec4 color;")
uniforms = shader._get_uniforms()
assert uniforms == [("color", gl.GL_FLOAT_VEC4)]
def test_delete_no_context(self):
shader = VertexShader()
shader.delete()
def test_set_uniform_vec4(self):
vert = VertexShader("uniform vec4 color;")
frag = FragmentShader("")
program = Program(vert, frag)
program["color"] = 1, 1, 1, 1
def _test_application(backend):
"""Test application running"""
app = Application()
assert_raises(ValueError, app.use, 'foo')
app.use(backend)
wrong = 'Glut' if app.backend_name != 'Glut' else 'Pyglet'
assert_raises(RuntimeError, app.use, wrong)
app.process_events()
if backend is not None:
# "in" b/c "qt" in "PySide (qt)"
assert_true(backend in app.backend_name)
print(app) # test __repr__
# Canvas
pos = [0, 0, 1, 1]
# Use "with" statement so failures don't leave open window
# (and test context manager behavior)
with Canvas(title='me', app=app, show=True, position=pos) as canvas:
assert_true(canvas.app is app)
assert_true(canvas.native)
print(canvas.size >= (1, 1))
canvas.resize(90, 90)
canvas.move(1, 1)
assert_equal(canvas.title, 'me')
canvas.title = 'you'
canvas.position = (0, 0)
canvas.size = (100, 100)
canvas.connect(on_mouse_move)
assert_raises(ValueError, canvas.connect, _on_mouse_move)
canvas.show()
assert_raises(ValueError, canvas.connect, on_nonexist)
# screenshots
ss = _screenshot()
assert_array_equal(ss.shape[2], 3) # XXX other dimensions not correct?
# XXX it would be good to do real checks, but sometimes the
# repositionings don't "take" (i.e., lead to random errors)
assert_equal(len(canvas._backend._vispy_get_geometry()), 4)
assert_equal(len(canvas.size), 2)
assert_equal(len(canvas.position), 2)
# GLOO: should have an OpenGL context already, so these should work
vert = VertexShader("void main (void) {gl_Position = pos;}")
frag = FragmentShader("void main (void) {gl_FragColor = pos;}")
program = Program(vert, frag)
assert_raises(ShaderError, program.activate)
vert = VertexShader("uniform vec4 pos;"
"void main (void) {gl_Position = pos;}")
frag = FragmentShader("uniform vec4 pos;"
"void main (void) {gl_FragColor = pos;}")
program = Program(vert, frag)
uniform = program.uniforms[0]
uniform.set_data([1, 2, 3, 4])
program.activate() # should print
uniform.upload(program)
program.detach(vert, frag)
assert_raises(ShaderError, program.detach, vert)
assert_raises(ShaderError, program.detach, frag)
vert = VertexShader("attribute vec4 pos;"
"void main (void) {gl_Position = pos;}")
frag = FragmentShader("void main (void) {}")
program = Program(vert, frag)
attribute = program.attributes[0]
attribute.set_data([1, 2, 3, 4])
program.activate()
attribute.upload(program)
# cannot get element count
assert_raises(ProgramError, program.draw, 'POINTS')
# use a real program
vert = ("uniform mat4 u_model;"
"attribute vec2 a_position; attribute vec4 a_color;"
"varying vec4 v_color;"
"void main (void) {v_color = a_color;"
"gl_Position = u_model * vec4(a_position, 0.0, 1.0);"
"v_color = a_color;}")
frag = "void main() {gl_FragColor = vec4(0, 0, 0, 1);}"
n, p = 250, 50
T = np.random.uniform(0, 2 * np.pi, n)
position = np.zeros((n, 2), dtype=np.float32)
position[:, 0] = np.cos(T)
position[:, 1] = np.sin(T)
color = np.ones((n, 4), dtype=np.float32) * (1, 1, 1, 1)
data = np.zeros(n * p, [('a_position', np.float32, 2),
('a_color', np.float32, 4)])
data['a_position'] = np.repeat(position, p, axis=0)
data['a_color'] = np.repeat(color, p, axis=0)
program = Program(vert, frag)
program.set_vars(VertexBuffer(data))
program['u_model'] = np.eye(4, dtype=np.float32)
program.draw('POINTS') # different codepath if no call to activate()
subset = ElementBuffer(np.arange(10, dtype=np.uint32))
program.draw('POINTS', subset=subset)
# bad programs
frag_bad = ("varying vec4 v_colors") # no semicolon
program = Program(vert, frag_bad)
assert_raises(ShaderError, program.activate)
frag_bad = None # no fragment code. no main is not always enough
program = Program(vert, frag_bad)
assert_raises(ProgramError, program.activate)
# Timer
timer = Timer(interval=0.001, connect=on_mouse_move, iterations=2,
start=True, app=app)
timer.start()
timer.interval = 0.002
assert_equal(timer.interval, 0.002)
assert_true(timer.running)
timer.stop()
assert_true(not timer.running)
assert_true(timer.native)
timer.disconnect()
# test that callbacks take reasonable inputs
_test_callbacks(canvas)
# cleanup
canvas.swap_buffers()
canvas.update()
# put this in even though __exit__ will call it to make sure we don't
# have problems calling it multiple times
canvas.close()
app.quit()
app.quit() # make sure it doesn't break if a user does something silly
def test_delete_no_context(self):
shader = VertexShader()
shader.delete()
def test_init(self):
shader = VertexShader()
assert shader._target == gl.GL_VERTEX_SHADER
def test_uniform_vec4(self):
shader = VertexShader("uniform vec4 color;")
uniforms = shader._get_uniforms()
assert uniforms == [("color", gl.GL_FLOAT_VEC4)]
def test_sourcecode(self):
code = "/* Code */"
shader = VertexShader(code)
assert shader.code == code
assert shader.source == "<string>"
def test_attribute_float(self):
shader = VertexShader("attribute float color;")
attributes = shader._get_attributes()
assert attributes == [("color", gl.GL_FLOAT)]
def test_empty_build(self):
shader = VertexShader()
assert shader._code is None
def test_uniform_float(self):
shader = VertexShader("uniform float color;")
uniforms = shader._get_uniforms()
assert uniforms == [("color", gl.GL_FLOAT)]
def test_uniform_float(self):
shader = VertexShader("uniform float color;")
uniforms = shader._get_uniforms()
assert uniforms == [("color", gl.GL_FLOAT)]
def test_init_from_shader(self):
program = Program(VertexShader("A"), FragmentShader("B"))
assert len(program.shaders) == 2
assert program.shaders[0].code == "A"
assert program.shaders[1].code == "B"
def test_uniform_array(self):
shader = VertexShader("uniform float color[2];")
uniforms = shader._get_uniforms()
assert uniforms == [("color[0]", gl.GL_FLOAT),
("color[1]", gl.GL_FLOAT)]
def test_unique_shader(self):
vert = VertexShader("A")
frag = FragmentShader("B")
program = Program([vert, vert], [frag, frag, frag])
assert len(program.shaders) == 2
def test_attribute_vec4(self):
shader = VertexShader("attribute vec4 color;")
attributes = shader._get_attributes()
assert attributes == [("color", gl.GL_FLOAT_VEC4)]
def test_setcode(self):
shader = VertexShader()
shader.set_code("")
assert shader._need_update
