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import pytest
from tests.base.interactive import InteractiveTestCase
from pyglet.gl import *
from pyglet import window
from pyglet import clock
from pyglet.window import key
@pytest.mark.requires_user_action
class WINDOW_MULTISAMPLE(InteractiveTestCase):
"""Test that a window can have multisample.
A window will be opened containing two rotating squares. Initially,
there will be no multisampling (the edges will look "jaggy"). Press:
* M to toggle multisampling on/off
* S to increase samples (2, 4, 6, 8, 10, ...)
* Shift+S to decrease samples
Each time sample_buffers or samples is modified, the window will be recreated.
Watch the console for success and failure messages. If the multisample
options are not supported, a "Failure" message will be printed and the window
will be left as-is.
Press ESC to end the test.
"""
win = None
width = 640
height = 480
soft_multisample = True
multisample = False
samples = 2
# This test does not work on all hardware, unless rendered to texture.
texture = pyglet.image.Texture.create(width, height, GL_TEXTURE_RECTANGLE)
def set_window(self):
oldwindow = self.win
try:
if self.multisample:
print('Attempting samples=%d...' % self.samples, end=' ')
config = Config(sample_buffers=1,
samples=self.samples,
double_buffer=True)
else:
print('Disabling multisample...', end=' ')
config = Config(double_buffer=True)
self.win = window.Window(self.width, self.height,
vsync=True,
config=config)
self.win.switch_to()
self.win.push_handlers(self.on_key_press)
if self.multisample:
if self.soft_multisample:
glEnable(GL_MULTISAMPLE_ARB)
else:
glDisable(GL_MULTISAMPLE_ARB)
if oldwindow:
oldwindow.close()
print('Success.')
except window.NoSuchConfigException:
print('Failed.')
def on_key_press(self, symbol, modifiers):
mod = 1
if modifiers & key.MOD_SHIFT:
mod = -1
if symbol == key.M:
self.multisample = not self.multisample
self.set_window()
if symbol == key.S:
self.samples += 2 * mod
self.samples = max(2, self.samples)
self.set_window()
# Another test: try enabling/disabling GL_MULTISAMPLE_ARB...
# seems to have no effect if samples > 4.
if symbol == key.N:
self.soft_multisample = not self.soft_multisample
if self.soft_multisample:
print('Enabling GL_MULTISAMPLE_ARB')
glEnable(GL_MULTISAMPLE_ARB)
else:
print('Disabling GL_MULTISAMPLE_ARB')
glDisable(GL_MULTISAMPLE_ARB)
def render(self):
self.win.switch_to()
size = self.height / 4
glClear(GL_COLOR_BUFFER_BIT)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glLoadIdentity()
glTranslatef(self.width/2, self.height/2, 0)
glRotatef(self.angle, 0, 0, 1)
glColor3f(1, 0, 0)
glBegin(GL_QUADS)
glVertex2f(-size, -size)
glVertex2f(size, -size)
glVertex2f(size, size)
glVertex2f(-size, size)
glEnd()
glRotatef(-self.angle * 2, 0, 0, 1)
glColor4f(0, 1, 0, 0.5)
glBegin(GL_QUADS)
glVertex2f(-size, -size)
glVertex2f(size, -size)
glVertex2f(size, size)
glVertex2f(-size, size)
glEnd()
# Render to texture, then blit to screen:
buffer = pyglet.image.get_buffer_manager().get_color_buffer()
self.texture.blit_into(buffer, 0, 0, 0)
glViewport(0, 0, self.width, self.height)
glClearColor(0, 0, 0, 1)
glClear(GL_COLOR_BUFFER_BIT)
glLoadIdentity()
glColor3f(1, 1, 1)
self.texture.blit(0, 0, width=self.width, height=self.height)
def test_multisample(self):
self.set_window()
try:
self.angle = 0
while not self.win.has_exit:
dt = clock.tick()
self.angle += dt
self.render()
self.win.flip()
self.win.dispatch_events()
finally:
self.win.close()
self.user_verify('Pass test?', take_screenshot=False)
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