302 lines
10 KiB
Python
302 lines
10 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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import ctypes
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from ctypes import *
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from pyglet import app
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from pyglet.app.xlib import XlibSelectDevice
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from .base import Display, Screen, ScreenMode, Canvas
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from . import xlib_vidmoderestore
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# XXX
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# from pyglet.window import NoSuchDisplayException
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class NoSuchDisplayException(Exception):
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pass
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from pyglet.libs.x11 import xlib
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try:
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from pyglet.libs.x11 import xinerama
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_have_xinerama = True
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except:
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_have_xinerama = False
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try:
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from pyglet.libs.x11 import xsync
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_have_xsync = True
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except:
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_have_xsync = False
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try:
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from pyglet.libs.x11 import xf86vmode
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_have_xf86vmode = True
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except:
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_have_xf86vmode = False
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# Set up error handler
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def _error_handler(display, event):
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# By default, all errors are silently ignored: this has a better chance
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# of working than the default behaviour of quitting ;-)
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#
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# We've actually never seen an error that was our fault; they're always
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# driver bugs (and so the reports are useless). Nevertheless, set
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# environment variable PYGLET_DEBUG_X11 to 1 to get dumps of the error
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# and a traceback (execution will continue).
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import pyglet
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if pyglet.options['debug_x11']:
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event = event.contents
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buf = c_buffer(1024)
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xlib.XGetErrorText(display, event.error_code, buf, len(buf))
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print('X11 error:', buf.value)
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print(' serial:', event.serial)
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print(' request:', event.request_code)
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print(' minor:', event.minor_code)
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print(' resource:', event.resourceid)
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import traceback
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print('Python stack trace (innermost last):')
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traceback.print_stack()
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return 0
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_error_handler_ptr = xlib.XErrorHandler(_error_handler)
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xlib.XSetErrorHandler(_error_handler_ptr)
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class XlibDisplay(XlibSelectDevice, Display):
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_display = None # POINTER(xlib.Display)
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_x_im = None # X input method
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# TODO close _x_im when display connection closed.
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_enable_xsync = False
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_screens = None # Cache of get_screens()
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def __init__(self, name=None, x_screen=None):
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if x_screen is None:
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x_screen = 0
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if isinstance(name, str):
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name = c_char_p(name.encode('ascii'))
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self._display = xlib.XOpenDisplay(name)
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if not self._display:
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raise NoSuchDisplayException('Cannot connect to "%s"' % name)
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screen_count = xlib.XScreenCount(self._display)
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if x_screen >= screen_count:
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raise NoSuchDisplayException(
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'Display "%s" has no screen %d' % (name, x_screen))
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super(XlibDisplay, self).__init__()
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self.name = name
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self.x_screen = x_screen
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self._fileno = xlib.XConnectionNumber(self._display)
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self._window_map = {}
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# Initialise XSync
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if _have_xsync:
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event_base = c_int()
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error_base = c_int()
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if xsync.XSyncQueryExtension(self._display,
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byref(event_base),
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byref(error_base)):
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major_version = c_int()
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minor_version = c_int()
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if xsync.XSyncInitialize(self._display,
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byref(major_version),
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byref(minor_version)):
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self._enable_xsync = True
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# Add to event loop select list. Assume we never go away.
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app.platform_event_loop._select_devices.add(self)
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def get_screens(self):
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if self._screens:
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return self._screens
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if _have_xinerama and xinerama.XineramaIsActive(self._display):
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number = c_int()
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infos = xinerama.XineramaQueryScreens(self._display,
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byref(number))
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infos = cast(infos,
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POINTER(xinerama.XineramaScreenInfo * number.value)).contents
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self._screens = []
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using_xinerama = number.value > 1
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for info in infos:
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self._screens.append(XlibScreen(self,
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info.x_org,
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info.y_org,
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info.width,
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info.height,
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using_xinerama))
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xlib.XFree(infos)
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else:
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# No xinerama
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screen_info = xlib.XScreenOfDisplay(self._display, self.x_screen)
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screen = XlibScreen(self,
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0, 0,
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screen_info.contents.width,
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screen_info.contents.height,
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False)
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self._screens = [screen]
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return self._screens
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# XlibSelectDevice interface
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def fileno(self):
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return self._fileno
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def select(self):
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e = xlib.XEvent()
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while xlib.XPending(self._display):
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xlib.XNextEvent(self._display, e)
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# Key events are filtered by the xlib window event
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# handler so they get a shot at the prefiltered event.
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if e.xany.type not in (xlib.KeyPress, xlib.KeyRelease):
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if xlib.XFilterEvent(e, e.xany.window):
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continue
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try:
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dispatch = self._window_map[e.xany.window]
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except KeyError:
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continue
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dispatch(e)
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def poll(self):
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return xlib.XPending(self._display)
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class XlibScreen(Screen):
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_initial_mode = None
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def __init__(self, display, x, y, width, height, xinerama):
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super(XlibScreen, self).__init__(display, x, y, width, height)
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self._xinerama = xinerama
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def get_matching_configs(self, template):
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canvas = XlibCanvas(self.display, None)
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configs = template.match(canvas)
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# XXX deprecate
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for config in configs:
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config.screen = self
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return configs
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def get_modes(self):
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if not _have_xf86vmode:
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return []
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if self._xinerama:
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# If Xinerama/TwinView is enabled, xf86vidmode's modelines
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# correspond to metamodes, which don't distinguish one screen from
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# another. XRandR (broken) or NV (complicated) extensions needed.
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return []
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count = ctypes.c_int()
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info_array = \
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ctypes.POINTER(ctypes.POINTER(xf86vmode.XF86VidModeModeInfo))()
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xf86vmode.XF86VidModeGetAllModeLines(
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self.display._display, self.display.x_screen, count, info_array)
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# Copy modes out of list and free list
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modes = []
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for i in range(count.value):
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info = xf86vmode.XF86VidModeModeInfo()
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ctypes.memmove(ctypes.byref(info),
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ctypes.byref(info_array.contents[i]),
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ctypes.sizeof(info))
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modes.append(XlibScreenMode(self, info))
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if info.privsize:
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xlib.XFree(info.private)
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xlib.XFree(info_array)
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return modes
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def get_mode(self):
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modes = self.get_modes()
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if modes:
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return modes[0]
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return None
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def set_mode(self, mode):
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assert mode.screen is self
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if not self._initial_mode:
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self._initial_mode = self.get_mode()
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xlib_vidmoderestore.set_initial_mode(self._initial_mode)
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xf86vmode.XF86VidModeSwitchToMode(self.display._display, self.display.x_screen, mode.info)
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xlib.XFlush(self.display._display)
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xf86vmode.XF86VidModeSetViewPort(self.display._display, self.display.x_screen, 0, 0)
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xlib.XFlush(self.display._display)
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self.width = mode.width
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self.height = mode.height
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def restore_mode(self):
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if self._initial_mode:
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self.set_mode(self._initial_mode)
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def __repr__(self):
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return 'XlibScreen(display=%r, x=%d, y=%d, ' \
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'width=%d, height=%d, xinerama=%d)' % \
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(self.display, self.x, self.y, self.width, self.height,
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self._xinerama)
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class XlibScreenMode(ScreenMode):
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def __init__(self, screen, info):
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super(XlibScreenMode, self).__init__(screen)
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self.info = info
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self.width = info.hdisplay
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self.height = info.vdisplay
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self.rate = info.dotclock
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self.depth = None
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class XlibCanvas(Canvas):
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def __init__(self, display, x_window):
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super(XlibCanvas, self).__init__(display)
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self.x_window = x_window
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