def __init__(self, *args, **kwargs):
BaseCanvasBackend.__init__(self, *args)
p = self._process_backend_kwargs(kwargs)
self._initialized = False
# Deal with config
_set_config(p.context.config)
# Deal with context
p.context.shared.add_ref('sdl2', self)
if p.context.shared.ref is self:
share = None
else:
other = p.context.shared.ref
share = other._id.window, other._native_context
sdl2.SDL_GL_MakeCurrent(*share)
sdl2.SDL_GL_SetAttribute(sdl2.SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1)
sdl2.SDL_GL_SetSwapInterval(1 if p.vsync else 0)
flags = sdl2.SDL_WINDOW_OPENGL
flags |= sdl2.SDL_WINDOW_SHOWN # start out shown
flags |= sdl2.SDL_WINDOW_ALLOW_HIGHDPI
flags |= sdl2.SDL_WINDOW_RESIZABLE if p.resizable else 0
flags |= sdl2.SDL_WINDOW_BORDERLESS if not p.decorate else 0
if p.fullscreen is not False:
self._fullscreen = True
if p.fullscreen is not True:
logger.warning('Cannot specify monitor number for SDL2 '
'fullscreen, using default')
flags |= sdl2.SDL_WINDOW_FULLSCREEN_DESKTOP
else:
self._fullscreen = False
self._mods = list()
if p.position is None:
position = [sdl2.SDL_WINDOWPOS_UNDEFINED] * 2
else:
position = None
self._id = sdl2.ext.Window(p.title, p.size, position, flags)
if not self._id.window:
raise RuntimeError('Could not create window')
if share is None:
self._native_context = sdl2.SDL_GL_CreateContext(self._id.window)
else:
self._native_context = sdl2.SDL_GL_CreateContext(share[0])
self._sdl_id = sdl2.SDL_GetWindowID(self._id.window)
_VP_SDL2_ALL_WINDOWS[self._sdl_id] = self
# Init
self._initialized = True
self._needs_draw = False
self._vispy_canvas.set_current()
self._vispy_canvas.events.initialize()
if not p.show:
self._vispy_set_visible(False)
def __init__(self, *args, **kwargs):
BaseCanvasBackend.__init__(self, *args)
title, size, position, show, vsync, resize, dec, fs, parent, context, \
= self._process_backend_kwargs(kwargs)
self._initialized = False
# Deal with context
if not context.istaken:
context.take('sdl2', self)
_set_config(context.config)
share = None
elif context.istaken == 'sdl2':
other = context.backend_canvas
share = other._id.window, other._native_context
sdl2.SDL_GL_MakeCurrent(*share)
sdl2.SDL_GL_SetAttribute(sdl2.SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1)
else:
raise RuntimeError('Different backends cannot share a context.')
sdl2.SDL_GL_SetSwapInterval(1 if vsync else 0)
flags = sdl2.SDL_WINDOW_OPENGL
flags |= sdl2.SDL_WINDOW_SHOWN # start out shown
flags |= sdl2.SDL_WINDOW_ALLOW_HIGHDPI
flags |= sdl2.SDL_WINDOW_RESIZABLE if resize else 0
flags |= sdl2.SDL_WINDOW_BORDERLESS if not dec else 0
if fs is not False:
self._fullscreen = True
if fs is not True:
logger.warning('Cannot specify monitor number for SDL2 '
'fullscreen, using default')
flags |= sdl2.SDL_WINDOW_FULLSCREEN_DESKTOP
else:
self._fullscreen = False
self._mods = list()
if position is None:
position = [sdl2.SDL_WINDOWPOS_UNDEFINED] * 2
self._id = sdl2.ext.Window(title, size, position, flags)
if not self._id.window:
raise RuntimeError('Could not create window')
if share is None:
self._native_context = sdl2.SDL_GL_CreateContext(self._id.window)
else:
self._native_context = sdl2.SDL_GL_CreateContext(share[0])
self._sdl_id = sdl2.SDL_GetWindowID(self._id.window)
_VP_SDL2_ALL_WINDOWS[self._sdl_id] = self
# Init
self._initialized = True
self._needs_draw = False
self._vispy_set_current()
self._vispy_canvas.events.initialize()
if not show:
self._vispy_set_visible(False)
def _async_init(self):
# Create an SDL2 window
sdl2.ext.init()
if sdl2.SDL_Init(sdl2.SDL_INIT_VIDEO) != 0:
raise RuntimeError(sdl2.SDL_GetError())
self._window = sdl2.SDL_CreateWindow(
self._window_title.encode(),
sdl2.SDL_WINDOWPOS_UNDEFINED,
sdl2.SDL_WINDOWPOS_UNDEFINED,
self.width,
self.height,
sdl2.SDL_WINDOW_OPENGL
| sdl2.SDL_WINDOW_RESIZABLE
| sdl2.SDL_WINDOW_UTILITY,
)
# Create an OpenGL context
sdl2.video.SDL_GL_SetAttribute(sdl2.video.SDL_GL_CONTEXT_MAJOR_VERSION,
self.OPENGL_VERSION[0])
sdl2.video.SDL_GL_SetAttribute(sdl2.video.SDL_GL_CONTEXT_MINOR_VERSION,
self.OPENGL_VERSION[1])
sdl2.video.SDL_GL_SetAttribute(
sdl2.video.SDL_GL_CONTEXT_PROFILE_MASK,
sdl2.video.SDL_GL_CONTEXT_PROFILE_CORE,
)
self._glcontext = sdl2.SDL_GL_CreateContext(self._window)
sdl2.SDL_GL_MakeCurrent(self._window, self._glcontext)
# Activate vertical synchronization
sdl2.SDL_GL_SetSwapInterval(1)
# Set the GLX context
GLX.glXMakeCurrent(self.x11display, self.x11window, self.glx_context)
# Call subclass custom initialization
self.init(**self._init_kwds)
# Start rendering
sdl2.SDL_ShowWindow(self._window)
self._timer = self._loop.create_timer(self._on_update)
self._loop.set_timer(self._timer, 1, int(1000.0 / 60.0))
def _vispy_set_current(self):
if self._id is None:
return
# Make this the current context
self._vispy_canvas.set_current() # Mark as current
sdl2.SDL_GL_MakeCurrent(self._id.window, self._native_context)
def activate(self):
sdl2.SDL_GL_MakeCurrent(self._native_window, self._native_context)
