401 lines
13 KiB
Python
401 lines
13 KiB
Python
# ----------------------------------------------------------------------------
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# pyglet
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# Copyright (c) 2006-2008 Alex Holkner
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# Copyright (c) 2008-2021 pyglet contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of pyglet nor the names of its
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# contributors may be used to endorse or promote products
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# derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# ----------------------------------------------------------------------------
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"""pyglet is a cross-platform games and multimedia package.
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More information is available at http://www.pyglet.org
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"""
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import os
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import sys
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from typing import TYPE_CHECKING
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#: The release version
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version = '2.0.dev13'
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__version__ = version
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if sys.version_info < (3, 6):
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raise Exception('pyglet %s requires Python 3.6 or newer.' % version)
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if 'sphinx' in sys.modules:
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setattr(sys, 'is_pyglet_doc_run', True)
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_is_pyglet_doc_run = hasattr(sys, "is_pyglet_doc_run") and sys.is_pyglet_doc_run
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# pyglet platform treats *BSD systems as Linux
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compat_platform = sys.platform
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if "bsd" in compat_platform:
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compat_platform = "linux-compat"
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_enable_optimisations = not __debug__
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if getattr(sys, 'frozen', None):
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_enable_optimisations = True
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#: Global dict of pyglet options. To change an option from its default, you
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#: must import ``pyglet`` before any sub-packages. For example::
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#:
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#: import pyglet
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#: pyglet.options['debug_gl'] = False
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#:
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#: The default options can be overridden from the OS environment. The
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#: corresponding environment variable for each option key is prefaced by
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#: ``PYGLET_``. For example, in Bash you can set the ``debug_gl`` option with::
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#:
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#: PYGLET_DEBUG_GL=True; export PYGLET_DEBUG_GL
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#:
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#: For options requiring a tuple of values, separate each value with a comma.
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#:
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#: The non-development options are:
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#:
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#: audio
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#: A sequence of the names of audio modules to attempt to load, in
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#: order of preference. Valid driver names are:
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#:
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#: * xaudio2, the Windows Xaudio2 audio module (Windows only)
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#: * directsound, the Windows DirectSound audio module (Windows only)
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#: * pulse, the PulseAudio module (Linux only)
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#: * openal, the OpenAL audio module
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#: * silent, no audio
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#: debug_lib
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#: If True, prints the path of each dynamic library loaded.
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#: debug_gl
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#: If True, all calls to OpenGL functions are checked afterwards for
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#: errors using ``glGetError``. This will severely impact performance,
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#: but provides useful exceptions at the point of failure. By default,
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#: this option is enabled if ``__debug__`` is (i.e., if Python was not run
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#: with the -O option). It is disabled by default when pyglet is "frozen"
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#: within a py2exe or py2app library archive.
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#: shadow_window
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#: By default, pyglet creates a hidden window with a GL context when
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#: pyglet.gl is imported. This allows resources to be loaded before
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#: the application window is created, and permits GL objects to be
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#: shared between windows even after they've been closed. You can
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#: disable the creation of the shadow window by setting this option to
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#: False.
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#:
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#: Some OpenGL driver implementations may not support shared OpenGL
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#: contexts and may require disabling the shadow window (and all resources
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#: must be loaded after the window using them was created). Recommended
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#: for advanced developers only.
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#:
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#: .. versionadded:: 1.1
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#: vsync
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#: If set, the `pyglet.window.Window.vsync` property is ignored, and
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#: this option overrides it (to either force vsync on or off). If unset,
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#: or set to None, the `pyglet.window.Window.vsync` property behaves
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#: as documented.
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#: xsync
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#: If set (the default), pyglet will attempt to synchronise the drawing of
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#: double-buffered windows to the border updates of the X11 window
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#: manager. This improves the appearance of the window during resize
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#: operations. This option only affects double-buffered windows on
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#: X11 servers supporting the Xsync extension with a window manager
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#: that implements the _NET_WM_SYNC_REQUEST protocol.
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#:
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#: .. versionadded:: 1.1
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#: search_local_libs
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#: If False, pyglet won't try to search for libraries in the script
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#: directory and its `lib` subdirectory. This is useful to load a local
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#: library instead of the system installed version. This option is set
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#: to True by default.
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#:
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#: .. versionadded:: 1.2
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#:
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options = {
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'audio': ('xaudio2', 'directsound', 'openal', 'pulse', 'silent'),
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'debug_font': False,
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'debug_gl': not _enable_optimisations,
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'debug_gl_trace': False,
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'debug_gl_trace_args': False,
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'debug_gl_shaders': False,
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'debug_graphics_batch': False,
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'debug_lib': False,
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'debug_media': False,
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'debug_texture': False,
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'debug_trace': False,
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'debug_trace_args': False,
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'debug_trace_depth': 1,
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'debug_trace_flush': True,
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'debug_win32': False,
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'debug_x11': False,
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'shadow_window': True,
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'vsync': None,
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'xsync': True,
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'xlib_fullscreen_override_redirect': False,
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'search_local_libs': True,
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'advanced_font_features': False,
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'headless': False,
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'headless_device': 0,
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}
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_option_types = {
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'audio': tuple,
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'debug_font': bool,
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'debug_gl': bool,
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'debug_gl_trace': bool,
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'debug_gl_trace_args': bool,
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'debug_gl_shaders': bool,
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'debug_graphics_batch': bool,
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'debug_lib': bool,
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'debug_media': bool,
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'debug_texture': bool,
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'debug_trace': bool,
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'debug_trace_args': bool,
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'debug_trace_depth': int,
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'debug_trace_flush': bool,
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'debug_win32': bool,
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'debug_x11': bool,
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'shadow_window': bool,
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'vsync': bool,
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'xsync': bool,
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'xlib_fullscreen_override_redirect': bool,
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'search_local_libs': bool,
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'advanced_font_features': bool,
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'headless': bool,
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'headless_device': int
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}
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def _read_environment():
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"""Read defaults for options from environment"""
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for key in options:
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assert key in _option_types, f"Option '{key}' must have a type set in _option_types."
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env = 'PYGLET_%s' % key.upper()
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try:
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value = os.environ[env]
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if _option_types[key] is tuple:
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options[key] = value.split(',')
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elif _option_types[key] is bool:
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options[key] = value in ('true', 'TRUE', 'True', '1')
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elif _option_types[key] is int:
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options[key] = int(value)
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except KeyError:
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pass
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_read_environment()
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if compat_platform == 'cygwin':
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# This hack pretends that the posix-like ctypes provides windows
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# functionality. COM does not work with this hack, so there is no
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# DirectSound support.
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import ctypes
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ctypes.windll = ctypes.cdll
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ctypes.oledll = ctypes.cdll
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ctypes.WINFUNCTYPE = ctypes.CFUNCTYPE
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ctypes.HRESULT = ctypes.c_long
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# Call tracing
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# ------------
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_trace_filename_abbreviations = {}
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def _trace_repr(value, size=40):
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value = repr(value)
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if len(value) > size:
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value = value[:size // 2 - 2] + '...' + value[-size // 2 - 1:]
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return value
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def _trace_frame(thread, frame, indent):
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from pyglet import lib
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if frame.f_code is lib._TraceFunction.__call__.__code__:
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is_ctypes = True
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func = frame.f_locals['self']._func
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name = func.__name__
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location = '[ctypes]'
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else:
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is_ctypes = False
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code = frame.f_code
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name = code.co_name
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path = code.co_filename
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line = code.co_firstlineno
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try:
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filename = _trace_filename_abbreviations[path]
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except KeyError:
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# Trim path down
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dir = ''
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path, filename = os.path.split(path)
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while len(dir + filename) < 30:
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filename = os.path.join(dir, filename)
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path, dir = os.path.split(path)
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if not dir:
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filename = os.path.join('', filename)
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break
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else:
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filename = os.path.join('...', filename)
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_trace_filename_abbreviations[path] = filename
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location = '(%s:%d)' % (filename, line)
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if indent:
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name = 'Called from %s' % name
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print('[%d] %s%s %s' % (thread, indent, name, location))
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if _trace_args:
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if is_ctypes:
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args = [_trace_repr(arg) for arg in frame.f_locals['args']]
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print(' %sargs=(%s)' % (indent, ', '.join(args)))
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else:
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for argname in code.co_varnames[:code.co_argcount]:
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try:
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argvalue = _trace_repr(frame.f_locals[argname])
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print(' %s%s=%s' % (indent, argname, argvalue))
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except:
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pass
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if _trace_flush:
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sys.stdout.flush()
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def _thread_trace_func(thread):
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def _trace_func(frame, event, arg):
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if event == 'call':
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indent = ''
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for i in range(_trace_depth):
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_trace_frame(thread, frame, indent)
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indent += ' '
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frame = frame.f_back
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if not frame:
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break
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elif event == 'exception':
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(exception, value, traceback) = arg
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print('First chance exception raised:', repr(exception))
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return _trace_func
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def _install_trace():
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global _trace_thread_count
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sys.setprofile(_thread_trace_func(_trace_thread_count))
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_trace_thread_count += 1
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_trace_thread_count = 0
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_trace_args = options['debug_trace_args']
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_trace_depth = options['debug_trace_depth']
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_trace_flush = options['debug_trace_flush']
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if options['debug_trace']:
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_install_trace()
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# Lazy loading
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# ------------
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class _ModuleProxy:
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_module = None
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def __init__(self, name):
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self.__dict__['_module_name'] = name
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def __getattr__(self, name):
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try:
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return getattr(self._module, name)
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except AttributeError:
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if self._module is not None:
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raise
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import_name = 'pyglet.%s' % self._module_name
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__import__(import_name)
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module = sys.modules[import_name]
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object.__setattr__(self, '_module', module)
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globals()[self._module_name] = module
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return getattr(module, name)
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def __setattr__(self, name, value):
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try:
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setattr(self._module, name, value)
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except AttributeError:
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if self._module is not None:
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raise
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import_name = 'pyglet.%s' % self._module_name
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__import__(import_name)
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module = sys.modules[import_name]
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object.__setattr__(self, '_module', module)
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globals()[self._module_name] = module
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setattr(module, name, value)
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# Lazily load all modules, except if performing
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# type checking or code inspection.
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if TYPE_CHECKING:
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from . import app
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from . import canvas
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from . import clock
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from . import com
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from . import event
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from . import font
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from . import gl
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from . import graphics
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from . import gui
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from . import input
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from . import image
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from . import lib
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from . import math
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from . import media
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from . import model
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from . import resource
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from . import sprite
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from . import shapes
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from . import text
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from . import window
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else:
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app = _ModuleProxy('app')
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canvas = _ModuleProxy('canvas')
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clock = _ModuleProxy('clock')
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com = _ModuleProxy('com')
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event = _ModuleProxy('event')
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font = _ModuleProxy('font')
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gl = _ModuleProxy('gl')
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graphics = _ModuleProxy('graphics')
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gui = _ModuleProxy('gui')
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image = _ModuleProxy('image')
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input = _ModuleProxy('input')
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lib = _ModuleProxy('lib')
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math = _ModuleProxy('math')
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media = _ModuleProxy('media')
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model = _ModuleProxy('model')
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resource = _ModuleProxy('resource')
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sprite = _ModuleProxy('sprite')
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shapes = _ModuleProxy('shapes')
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text = _ModuleProxy('text')
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window = _ModuleProxy('window')
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