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################################################
## pygame-based implementation of xshm ##
################################################
import os, sys
from Xlib import X, display
# -*-*- SLOOWWW -*-*-
import psyco; psyco.full()
class Display:
def __init__(self, width, height, title):
self.dpy = display.Display()
self.default_scr = self.dpy.screen()
self.root = self.default_scr.root
self.width = width
self.height = height
self.depth = self.default_scr.root_depth
self.backpixmap = self.root.create_pixmap(width, height, self.depth)
self.win = self.root.create_window(
0, 0, width, height, 0, self.depth,
override_redirec = 0,
background_pixel = self.default_scr.black_pixel,
backing_store = X.NotUseful,
)
self.win.map()
self.gc = self.win.create_gc()
self.gc_and = self.win.create_gc()
self.gc_or = self.win.create_gc()
self.gc.change(foreground = self.default_scr.black_pixel)
self.gc_and.change(function = X.GXand)
self.gc_or .change(function = X.GXor)
self.selectinput = 0
self.keyev = []
self.mouseev = []
self.motionev = None
self.dpy.flush()
pixel = "\x00\x00\x80"
hole = "\x01\x01\x01"
self.taskbkgnd = self.pixmap(32, 32,
((pixel+hole)*16 + (hole+pixel)*16) * 16,
0x010101)
def pixmap(self, w, h, data, colorkey=-1):
print >> sys.stderr, '.',
extent = w*h
depth = self.depth
if depth >= 24:
bitmap_pad = 32
else:
bitmap_pad = 16
scanline = ((w+bitmap_pad-1) & ~(bitmap_pad-1)) / 8;
if colorkey >= 0:
key = (chr(colorkey >> 16) +
chr((colorkey>>8) & 0xFF) +
chr(colorkey & 0xFF))
else:
key = None
if depth == 15:
p_size = 5, 5, 5
elif depth == 16:
p_size = 5, 6, 5
elif depth == 24 or depth == 32:
p_size = 8, 8, 8
else:
raise ValueError, 'unsupported screen depth %d' % depth
imgdata = []
maskdata = []
for color in range(3):
plane = 128
while plane >= (1<<(8-p_size[color])):
src = 0
for y in range(h):
imgline = 0L
maskline = 0L
shifter = 1L
for x in range(w):
if data[src:src+3] == key:
# transparent
maskline |= shifter
elif ord(data[src+color]) & plane:
imgline |= shifter
shifter <<= 1
src += 3
imgdata.append(long2string(imgline, scanline))
maskdata.append(long2string(maskline, scanline))
plane /= 2
imgdata = ''.join(imgdata)
if colorkey >= 0:
maskdata = ''.join(maskdata)
mask = self.win.create_pixmap(w, h, depth)
mask.put_image(self.gc, 0, 0, w, h, X.XYPixmap, depth, 0, maskdata)
else:
mask = None
imgdata = ''.join(imgdata)
image = self.win.create_pixmap(w, h, depth)
image.put_image(self.gc, 0, 0, w, h, X.XYPixmap, depth, 0, imgdata)
image.mask = mask
image.size = w, h
return image
def getppm(self, (x, y, w, h), bkgnd=None):
if bkgnd is None:
bkgnd = self.win.create_pixmap(w, h, self.depth)
bkgnd.mask = None
bkgnd.size = w, h
bkgnd.copy_area(self.gc, self.backpixmap, x, y, w, h, 0, 0)
return bkgnd
def putppm(self, x, y, image, rect=None):
if rect:
x1, y1, w1, h1 = rect
else:
x1 = y1 = 0
w1, h1 = image.size
if image.mask is None:
self.backpixmap.copy_area(self.gc, image, x1, y1, w1, h1, x, y)
else:
self.backpixmap.copy_area(self.gc_and, image.mask,
x1, y1, w1, h1, x, y)
self.backpixmap.copy_area(self.gc_or, image,
x1, y1, w1, h1, x, y)
def flip(self):
self.win.copy_area(self.gc, self.backpixmap,
0, 0, self.width, self.height, 0, 0)
self.dpy.flush()
self.readXevents()
def close(self):
self.dpy.close()
def clear(self):
self.backpixmap.fill_rectangle(self.gc, 0, 0, self.width, self.height)
def readXevents(self):
n = self.dpy.pending_events()
if n:
for i in range(n):
event = self.dpy.next_event()
if event.type == X.KeyPress or event.type == X.KeyRelease:
self.keyev.append((event.detail, event.type))
elif event.type == X.ButtonPress:
self.mouseev.append((event.event_x, event.event_y))
elif event.type == X.MotionNotify:
self.motionev = event.event_x, event.event_y
elif event.type == X.DestroyNotify:
raise SystemExit
self.readXevents()
def enable_event(self, mask):
self.selectinput |= mask
self.win.change_attributes(event_mask=self.selectinput)
def keyevents(self):
if not (self.selectinput & X.KeyReleaseMask):
self.enable_event(X.KeyPressMask | X.KeyReleaseMask)
self.readXevents()
result = self.keyev
self.keyev = []
return result
def mouseevents(self):
if not (self.selectinput & X.ButtonPressMask):
self.enable_event(X.ButtonPressMask)
result = self.mouseev
self.mouseev = []
return result
def pointermotion(self):
result = self.motionev
self.motionev = None
return result
def has_sound(self):
return 0
def selectlist(self):
from socket import fromfd, AF_INET, SOCK_STREAM
return [fromfd(self.dpy.fileno(), AF_INET, SOCK_STREAM)]
def taskbar(self, (x, y, w, h)):
for j in range(y, y+h, 32):
for i in range(x, x+w, 32):
self.putppm(i, j, self.taskbkgnd,
(0, 0, x+w-i, y+h-j))
def long2string(bits, strlen):
return ''.join([chr((bits>>n)&0xFF) for n in range(0, 8*strlen, 8)])
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