def resize(self, x=0, y=0, w=0, h=0, layer=0):
# Destroy current surface and native window
if self.use_glx:
glx.glXSwapBuffers(self.d, self.window)
else:
openegl.eglSwapBuffers(self.display, self.surface)
if PLATFORM == PLATFORM_PI:
openegl.eglDestroySurface(self.display, self.surface)
self.dispman_update = bcm.vc_dispmanx_update_start(0)
bcm.vc_dispmanx_element_remove(self.dispman_update,
self.dispman_element)
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
bcm.vc_dispmanx_display_close(self.dispman_display)
#Now recreate the native window and surface
self.create_surface(x, y, w, h, layer)
elif PLATFORM == PLATFORM_ANDROID:
pass #TODO something here
elif X_WINDOW:
xlib.XMoveResizeWindow(self.d, self.window, x, y, w, h)
def destroy(self, display=None):
if self.active:
###### brute force tidying experiment TODO find nicer way ########
if display:
func_list = [
[
opengles.glIsBuffer, opengles.glDeleteBuffers,
display.vbufs_dict.update(display.ebufs_dict)
], # merge two dictionaries with update()
[
opengles.glIsTexture, opengles.glDeleteTextures,
display.textures_dict
],
[opengles.glIsProgram, opengles.glDeleteProgram, 0],
[opengles.glIsShader, opengles.glDeleteShader, 0]
]
i_ct = (ctypes.c_int * 1)(0) #convoluted 0
for fi, func in enumerate(func_list):
streak_start = 0
if func[2]: # list to work through
for i in func[2]:
if func[0](func[2][i]
[0]) == 1: #check if i exists as a name
try:
func[1](1, byref(func[2][i][0]))
except:
pass # TODO find why this might fail (maybe race condition)
else: # just do sequential numbers
for i in range(1, 10000): # name 0 not to be deleted
if func[0](i) == 1: #check if i exists as a name
if fi < 2: # buffers or textures needs number to delete
i_ct[
0] = i # pass as pointer to array of uint
try:
func[1](1, byref(i_ct))
except:
pass # TODO not sure why this silently fails and prevents the rest of the tidy up
else: # program and shader just one arg
try:
func[1](i)
except:
pass # TODO see above
streak_start = i
elif i > (streak_start + 100):
break
##################################################################
openegl.eglSwapBuffers(self.display, self.surface)
openegl.eglMakeCurrent(self.display, EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT)
openegl.eglDestroySurface(self.display, self.surface)
openegl.eglDestroyContext(self.display, self.context)
openegl.eglTerminate(self.display)
if PLATFORM == PLATFORM_PI:
self.dispman_update = bcm.vc_dispmanx_update_start(0)
bcm.vc_dispmanx_element_remove(self.dispman_update,
self.dispman_element)
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
bcm.vc_dispmanx_display_close(self.dispman_display)
self.active = False
if pi3d.USE_PYGAME:
import pygame
pygame.display.quit()
elif PLATFORM != PLATFORM_PI and PLATFORM != PLATFORM_ANDROID:
xlib.XCloseDisplay(self.d)
def change_layer(self, layer=0):
if PLATFORM == PLATFORM_PI:
self.dispman_update = bcm.vc_dispmanx_update_start(0)
bcm.vc_dispmanx_element_change_layer(self.dispman_update,
self.dispman_element, layer)
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
def create_surface(self, x=0, y=0, w=0, h=0, layer=0):
#Set the viewport position and size
dst_rect = c_ints((x, y, w, h))
src_rect = c_ints((x, y, w << 16, h << 16))
if PLATFORM == PLATFORM_ANDROID:
self.surface = openegl.eglGetCurrentSurface(EGL_DRAW)
# Get the width and height of the screen - TODO, this system returns 100x100
time.sleep(0.2) #give it a chance to find out the dimensions
w = c_int()
h = c_int()
openegl.eglQuerySurface(self.display, self.surface, EGL_WIDTH,
byref(w))
openegl.eglQuerySurface(self.display, self.surface, EGL_HEIGHT,
byref(h))
self.width, self.height = w.value, h.value
elif PLATFORM == PLATFORM_PI:
self.dispman_display = bcm.vc_dispmanx_display_open(
0) #LCD setting
self.dispman_update = bcm.vc_dispmanx_update_start(0)
alpha = c_ints((DISPMANX_FLAGS_ALPHA_PREMULT, 0, 0))
self.dispman_element = bcm.vc_dispmanx_element_add(
self.dispman_update, self.dispman_display, layer, dst_rect, 0,
src_rect, DISPMANX_PROTECTION_NONE, alpha, 0, 0)
nativewindow = (GLint * 3)(self.dispman_element, w, h + 1)
bcm.vc_dispmanx_update_submit_sync(self.dispman_update)
self.nw_p = ctypes.pointer(nativewindow)
### NB changing the argtypes to allow passing of bcm native window is
### deeply unsatisfactory. But xlib defines Window as c_ulong and ctypes
### isn't happy about a pointer being cast to an int
openegl.eglCreateWindowSurface.argtypes = [
EGLDisplay, EGLConfig,
POINTER((GLint * 3)), EGLint
]
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.nw_p, 0)
elif pi3d.USE_PYGAME:
import pygame
flags = pygame.OPENGL
wsize = (w, h)
if w == self.width and h == self.height: # i.e. full screen
flags = pygame.FULLSCREEN | pygame.OPENGL
wsize = (0, 0)
if self.display_config & DISPLAY_CONFIG_NO_RESIZE:
flags |= pygame.RESIZABLE
if self.display_config & DISPLAY_CONFIG_NO_FRAME:
flags |= pygame.NOFRAME
if self.display_config & DISPLAY_CONFIG_FULLSCREEN:
flags |= pygame.FULLSCREEN
elif self.display_config & DISPLAY_CONFIG_MAXIMIZED:
flags |= pygame.FULLSCREEN
wsize = (0, 0)
self.width, self.height = w, h
self.d = pygame.display.set_mode(wsize, flags)
self.window = pygame.display.get_wm_info()["window"]
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
else: # work on basis it's X11
# Set some WM info
self.root = xlib.XRootWindowOfScreen(self.screen)
if self.use_glx: # For drawing on X window with transparent background
numfbconfigs = c_int()
VisData = c_ints(
(glx.GLX_RENDER_TYPE, glx.GLX_RGBA_BIT,
glx.GLX_DRAWABLE_TYPE, glx.GLX_WINDOW_BIT,
glx.GLX_DOUBLEBUFFER, True, glx.GLX_RED_SIZE, 8,
glx.GLX_GREEN_SIZE, 8, glx.GLX_BLUE_SIZE, 8,
glx.GLX_ALPHA_SIZE, 8, glx.GLX_DEPTH_SIZE, 16, 0))
glx_screen = xlib.XDefaultScreen(self.d)
fbconfigs = glx.glXChooseFBConfig(self.d, glx_screen, VisData,
byref(numfbconfigs))
fbconfig = 0
for i in range(numfbconfigs.value):
visual = glx.glXGetVisualFromFBConfig(
self.d, fbconfigs[i]).contents
if not visual:
continue
pict_format = glx.XRenderFindVisualFormat(
self.d, visual.visual).contents
if not pict_format:
continue
fbconfig = fbconfigs[i]
if pict_format.direct.alphaMask > 0:
break
if not fbconfig:
print("No matching FB config found")
#/* Create a colormap - only needed on some X clients, eg. IRIX */
cmap = xlib.XCreateColormap(self.d, self.root, visual.visual,
AllocNone)
attr = xlib.XSetWindowAttributes()
attr.colormap = cmap
attr.background_pixmap = 0
attr.border_pixmap = 0
attr.border_pixel = 0
attr.event_mask = (StructureNotifyMask | EnterWindowMask
| LeaveWindowMask | ExposureMask
| ButtonPressMask | ButtonReleaseMask
| OwnerGrabButtonMask | KeyPressMask
| KeyReleaseMask)
attr_mask = ( # CWBackPixmap|
CWColormap | CWBorderPixel | CWEventMask)
self.window = xlib.XCreateWindow(self.d, self.root, x, y, w, h,
0, visual.depth, 1,
visual.visual, attr_mask,
byref(attr))
else: # normal EGL created context
self.window = xlib.XCreateSimpleWindow(self.d, self.root, x, y,
w, h, 1, 0, 0)
s = ctypes.create_string_buffer(b'WM_DELETE_WINDOW')
self.WM_DELETE_WINDOW = ctypes.c_ulong(
xlib.XInternAtom(self.d, s, 0))
# set window title
title = ctypes.c_char_p(self.window_title)
title_length = ctypes.c_int(len(self.window_title))
wm_name_atom = ctypes.c_ulong(
xlib.XInternAtom(self.d,
ctypes.create_string_buffer(b'WM_NAME'), 0))
string_atom = ctypes.c_ulong(
xlib.XInternAtom(self.d,
ctypes.create_string_buffer(b'STRING'), 0))
xlib.XChangeProperty(self.d, self.window, wm_name_atom,
string_atom, 8, xlib.PropModeReplace, title,
title_length)
if (w == self.width
and h == self.height) or (self.display_config
& DISPLAY_CONFIG_FULLSCREEN):
# set full-screen. Messy c function calls!
wm_state = ctypes.c_ulong(
xlib.XInternAtom(self.d, b'_NET_WM_STATE', 0))
fullscreen = ctypes.c_ulong(
xlib.XInternAtom(self.d, b'_NET_WM_STATE_FULLSCREEN', 0))
fullscreen = ctypes.cast(ctypes.pointer(fullscreen),
ctypes.c_char_p)
XA_ATOM = 4
xlib.XChangeProperty(self.d, self.window, wm_state, XA_ATOM,
32, xlib.PropModeReplace, fullscreen, 1)
self.width, self.height = w, h
if self.display_config & DISPLAY_CONFIG_HIDE_CURSOR:
black = xlib.XColor()
black.red = 0
black.green = 0
black.blue = 0
noData = ctypes.c_char_p(bytes([0, 0, 0, 0, 0, 0, 0, 0]))
bitmapNoData = xlib.XCreateBitmapFromData(
self.d, self.window, noData, 8, 8)
invisibleCursor = xlib.XCreatePixmapCursor(
self.d, bitmapNoData, bitmapNoData, black, black, 0, 0)
xlib.XDefineCursor(self.d, self.window, invisibleCursor)
#TODO add functions to xlib for these window manager libx11 functions
#self.window.set_wm_name('pi3d xlib window')
#self.window.set_wm_icon_name('pi3d')
#self.window.set_wm_class('draw', 'XlibExample')
xlib.XSetWMProtocols(self.d, self.window, self.WM_DELETE_WINDOW, 1)
#self.window.set_wm_hints(flags = Xutil.StateHint,
# initial_state = Xutil.NormalState)
#self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
# | Xutil.PMinSize),
# min_width = 20,
# min_height = 20)
xlib.XSelectInput(
self.d, self.window,
KeyPressMask | KeyReleaseMask | ResizeRedirectMask)
xlib.XMapWindow(self.d, self.window)
#xlib.XMoveWindow(self.d, self.window, x, y) #TODO this has to happen later. Works after rendering first frame. Check when
if self.use_glx:
dummy = c_int()
if not glx.glXQueryExtension(self.d, byref(dummy),
byref(dummy)):
print("OpenGL not supported by X server\n")
dummy_glx_context = ctypes.cast(0, glx.GLXContext)
self.render_context = glx.glXCreateNewContext(
self.d, fbconfig, glx.GLX_RGBA_TYPE, dummy_glx_context,
True)
if not self.render_context:
print("Failed to create a GL context\n")
if not glx.glXMakeContextCurrent(
self.d, self.window, self.window, self.render_context):
print("glXMakeCurrent failed for window\n")
else:
self.surface = openegl.eglCreateWindowSurface(
self.display, self.config, self.window, 0)
if not self.use_glx:
assert self.surface != EGL_NO_SURFACE and self.surface is not None
r = openegl.eglMakeCurrent(self.display, self.surface,
self.surface, self.context)
assert r
#Create viewport
opengles.glViewport(GLint(0), GLint(0), GLsizei(w), GLsizei(h))