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| from pyrender.constants import (TARGET_OPEN_GL_MAJOR, TARGET_OPEN_GL_MINOR, | |
| MIN_OPEN_GL_MAJOR, MIN_OPEN_GL_MINOR) | |
| from .base import Platform | |
| import OpenGL | |
| __all__ = ['PygletPlatform'] | |
| class PygletPlatform(Platform): | |
| """Renders on-screen using a 1x1 hidden Pyglet window for getting | |
| an OpenGL context. | |
| """ | |
| def __init__(self, viewport_width, viewport_height): | |
| super(PygletPlatform, self).__init__(viewport_width, viewport_height) | |
| self._window = None | |
| def init_context(self): | |
| import pyglet | |
| pyglet.options['shadow_window'] = False | |
| try: | |
| pyglet.lib.x11.xlib.XInitThreads() | |
| except Exception: | |
| pass | |
| self._window = None | |
| confs = [pyglet.gl.Config(sample_buffers=1, samples=4, | |
| depth_size=24, | |
| double_buffer=True, | |
| major_version=TARGET_OPEN_GL_MAJOR, | |
| minor_version=TARGET_OPEN_GL_MINOR), | |
| pyglet.gl.Config(depth_size=24, | |
| double_buffer=True, | |
| major_version=TARGET_OPEN_GL_MAJOR, | |
| minor_version=TARGET_OPEN_GL_MINOR), | |
| pyglet.gl.Config(sample_buffers=1, samples=4, | |
| depth_size=24, | |
| double_buffer=True, | |
| major_version=MIN_OPEN_GL_MAJOR, | |
| minor_version=MIN_OPEN_GL_MINOR), | |
| pyglet.gl.Config(depth_size=24, | |
| double_buffer=True, | |
| major_version=MIN_OPEN_GL_MAJOR, | |
| minor_version=MIN_OPEN_GL_MINOR)] | |
| for conf in confs: | |
| try: | |
| self._window = pyglet.window.Window(config=conf, visible=False, | |
| resizable=False, | |
| width=1, height=1) | |
| break | |
| except pyglet.window.NoSuchConfigException as e: | |
| pass | |
| if not self._window: | |
| raise ValueError( | |
| 'Failed to initialize Pyglet window with an OpenGL >= 3+ ' | |
| 'context. If you\'re logged in via SSH, ensure that you\'re ' | |
| 'running your script with vglrun (i.e. VirtualGL). The ' | |
| 'internal error message was "{}"'.format(e) | |
| ) | |
| def make_current(self): | |
| if self._window: | |
| self._window.switch_to() | |
| def make_uncurrent(self): | |
| try: | |
| import pyglet | |
| pyglet.gl.xlib.glx.glXMakeContextCurrent(self._window.context.x_display, 0, 0, None) | |
| except Exception: | |
| pass | |
| def delete_context(self): | |
| if self._window is not None: | |
| self.make_current() | |
| cid = OpenGL.contextdata.getContext() | |
| try: | |
| self._window.context.destroy() | |
| self._window.close() | |
| except Exception: | |
| pass | |
| self._window = None | |
| OpenGL.contextdata.cleanupContext(cid) | |
| del cid | |
| def supports_framebuffers(self): | |
| return True | |