def initcolormap(self):
self.colormapinited = 1
self.color0 = None
self.fixcolor0 = 0
if self.format in ('rgb', 'jpeg', 'compress'):
self.set_rgbmode()
gl.RGBcolor(200, 200, 200) # XXX rather light grey
gl.clear()
return
# This only works on an Entry-level Indigo from IRIX 4.0.5
if self.format == 'rgb8' and is_entry_indigo() and \
gl.gversion() == 'GL4DLG-4.0.': # Note trailing '.'!
self.set_rgbmode()
gl.RGBcolor(200, 200, 200) # XXX rather light grey
gl.clear()
gl.pixmode(GL.PM_SIZE, 8)
return
self.set_cmode()
self.skipchrom = 0
if self.offset == 0:
self.mask = 0x7ff
else:
self.mask = 0xfff
if not self.quiet:
sys.stderr.write('Initializing color map...')
self._initcmap()
gl.clear()
if not self.quiet:
sys.stderr.write(' Done.\n')
def show(file):
import gl, GL, DEVICE
jpegdata = open(file, 'r').read()
imgdata, width, height, bytesperpixel = decompress(jpegdata)
gl.foreground()
gl.prefsize(width, height)
win = gl.winopen(file)
if bytesperpixel == 1:
gl.cmode()
gl.pixmode(GL.PM_SIZE, 8)
gl.gconfig()
for i in range(256):
gl.mapcolor(i, i, i, i)
else:
gl.RGBmode()
gl.pixmode(GL.PM_SIZE, 32)
gl.gconfig()
gl.qdevice(DEVICE.REDRAW)
gl.qdevice(DEVICE.ESCKEY)
gl.qdevice(DEVICE.WINQUIT)
gl.qdevice(DEVICE.WINSHUT)
gl.lrectwrite(0, 0, width - 1, height - 1, imgdata)
while 1:
dev, val = gl.qread()
if dev in (DEVICE.ESCKEY, DEVICE.WINSHUT, DEVICE.WINQUIT):
break
if dev == DEVICE.REDRAW:
gl.lrectwrite(0, 0, width - 1, height - 1, imgdata)
gl.winclose(win)
newjpegdata = compress(imgdata, width, height, bytesperpixel)
open('/tmp/j.jpg', 'w').write(newjpegdata)
def initcolormap(self):
self.colormapinited = 1
self.color0 = None
self.fixcolor0 = 0
if self.format in ('rgb', 'jpeg', 'compress'):
self.set_rgbmode()
gl.RGBcolor(200, 200, 200) # XXX rather light grey
gl.clear()
return
# This only works on an Entry-level Indigo from IRIX 4.0.5
if self.format == 'rgb8' and is_entry_indigo() and \
gl.gversion() == 'GL4DLG-4.0.': # Note trailing '.'!
self.set_rgbmode()
gl.RGBcolor(200, 200, 200) # XXX rather light grey
gl.clear()
gl.pixmode(GL.PM_SIZE, 8)
return
self.set_cmode()
self.skipchrom = 0
if self.offset == 0:
self.mask = 0x7ff
else:
self.mask = 0xfff
if not self.quiet:
sys.stderr.write('Initializing color map...')
self._initcmap()
gl.clear()
if not self.quiet:
sys.stderr.write(' Done.\n')
def show(file):
import gl, GL, DEVICE
jpegdata = open(file, 'r').read()
imgdata, width, height, bytesperpixel = decompress(jpegdata)
gl.foreground()
gl.prefsize(width, height)
win = gl.winopen(file)
if bytesperpixel == 1:
gl.cmode()
gl.pixmode(GL.PM_SIZE, 8)
gl.gconfig()
for i in range(256):
gl.mapcolor(i, i, i, i)
else:
gl.RGBmode()
gl.pixmode(GL.PM_SIZE, 32)
gl.gconfig()
gl.qdevice(DEVICE.REDRAW)
gl.qdevice(DEVICE.ESCKEY)
gl.qdevice(DEVICE.WINQUIT)
gl.qdevice(DEVICE.WINSHUT)
gl.lrectwrite(0, 0, width - 1, height - 1, imgdata)
while 1:
dev, val = gl.qread()
if dev in (DEVICE.ESCKEY, DEVICE.WINSHUT, DEVICE.WINQUIT):
break
if dev == DEVICE.REDRAW:
gl.lrectwrite(0, 0, width - 1, height - 1, imgdata)
gl.winclose(win)
newjpegdata = compress(imgdata, width, height, bytesperpixel)
open('/tmp/j.jpg', 'w').write(newjpegdata)
def grab_rgb8(w, h, pf): if gl.getdisplaymode() <> GET.DMRGB: raise Error, 'Sorry, can only grab rgb8 in single-buf rgbmode' if pf <> (1, 1): raise Error, 'Sorry, can only grab rgb8 with packfactor (1,1)' if not VFile.is_entry_indigo(): raise Error, 'Sorry, can only grab rgb8 on entry level Indigo' # XXX Dirty Dirty here. # XXX Set buffer to cmap mode, grab image and set it back. gl.cmode() gl.gconfig() gl.pixmode(GL.PM_SIZE, 8) data = gl.lrectread(0, 0, w-1, h-1) data = data[:w*h] # BUG FIX for python lrectread gl.RGBmode() gl.gconfig() gl.pixmode(GL.PM_SIZE, 32) return data, None
def grab_rgb8(w, h, pf):
if gl.getdisplaymode() <> GET.DMRGB:
raise Error, 'Sorry, can only grab rgb8 in single-buf rgbmode'
if pf <> (1, 1):
raise Error, 'Sorry, can only grab rgb8 with packfactor (1,1)'
if not VFile.is_entry_indigo():
raise Error, 'Sorry, can only grab rgb8 on entry level Indigo'
# XXX Dirty Dirty here.
# XXX Set buffer to cmap mode, grab image and set it back.
gl.cmode()
gl.gconfig()
gl.pixmode(GL.PM_SIZE, 8)
data = gl.lrectread(0, 0, w - 1, h - 1)
data = data[:w * h] # BUG FIX for python lrectread
gl.RGBmode()
gl.gconfig()
gl.pixmode(GL.PM_SIZE, 32)
return data, None
def imageview(file): import cl, CL, gl, GL, DEVICE filep = open(file, 'r') header = filep.read(16) filep.seek(0) scheme = cl.QueryScheme(header) decomp = cl.OpenDecompressor(scheme) headersize = cl.QueryMaxHeaderSize(scheme) header = filep.read(headersize) filep.seek(0) headersize = decomp.ReadHeader(header) width = decomp.GetParam(CL.IMAGE_WIDTH) height = decomp.GetParam(CL.IMAGE_HEIGHT) params = [CL.ORIGINAL_FORMAT, CL.RGBX, \ CL.ORIENTATION, CL.BOTTOM_UP, \ CL.FRAME_BUFFER_SIZE, width*height*CL.BytesPerPixel(CL.RGBX)] decomp.SetParams(params) image = decomp.Decompress(1, filep.read()) filep.close() decomp.CloseDecompressor() gl.foreground() gl.prefsize(width, height) win = gl.winopen(file) gl.RGBmode() gl.pixmode(GL.PM_SIZE, 32) gl.gconfig() gl.qdevice(DEVICE.REDRAW) gl.qdevice(DEVICE.ESCKEY) gl.qdevice(DEVICE.WINQUIT) gl.qdevice(DEVICE.WINSHUT) gl.lrectwrite(0, 0, width-1, height-1, image) while 1: dev, val = gl.qread() if dev in (DEVICE.ESCKEY, DEVICE.WINSHUT, DEVICE.WINQUIT): break if dev == DEVICE.REDRAW: gl.lrectwrite(0, 0, width-1, height-1, image) gl.winclose(win)
import sys
import sys
import sys
# Class to grab frames from a window.
class Displayer(VideoParams):
# Initialize an instance.
# This does not need a current window
def __init__(self):
if no_gl:
raise RuntimeError, \
'no gl module available, so cannot display'
VideoParams.__init__(self)
# User-settable parameters
self.magnify = 1.0 # frame magnification factor
self.xorigin = 0 # x frame offset
self.yorigin = 0 # y frame offset (from bottom)
self.quiet = 0 # if set, don't print messages
self.fallback = 1 # allow fallback to grey
# Internal flags
self.colormapinited = 0 # must initialize window
self.skipchrom = 0 # don't skip chrominance data
self.color0 = None # magic, used by clearto()
self.fixcolor0 = 0 # don't need to fix color0
self.mustunpack = (not support_packed_pixels())
# setinfo() must reset some internal flags
def setinfo(self, values):
VideoParams.setinfo(self, values)
self.colormapinited = 0
self.skipchrom = 0
self.color0 = None
self.fixcolor0 = 0
# Show one frame, initializing the window if necessary
def showframe(self, data, chromdata):
self.showpartframe(data, chromdata, \
(0,0,self.width,self.height))
def showpartframe(self, data, chromdata, (x, y, w, h)):
pmsize = self.bpp
xpf, ypf = self.xpf, self.ypf
if self.upside_down:
gl.pixmode(GL.PM_TTOB, 1)
if self.mirror_image:
gl.pixmode(GL.PM_RTOL, 1)
if self.format in ('jpeg', 'jpeggrey'):
import jpeg
data, width, height, bytes = jpeg.decompress(data)
pmsize = bytes * 8
elif self.format == 'compress':
data = self.decompress(data)
pmsize = 32
elif self.format in ('mono', 'grey4'):
if self.mustunpack:
if self.format == 'mono':
data = imageop.mono2grey(data, \
w/xpf, h/ypf, 0x20, 0xdf)
elif self.format == 'grey4':
data = imageop.grey42grey(data, \
w/xpf, h/ypf)
pmsize = 8
elif self.format == 'grey2':
data = imageop.grey22grey(data, w / xpf, h / ypf)
pmsize = 8
if not self.colormapinited:
self.initcolormap()
if self.fixcolor0:
gl.mapcolor(self.color0)
self.fixcolor0 = 0
xfactor = yfactor = self.magnify
xfactor = xfactor * xpf
yfactor = yfactor * ypf
if chromdata and not self.skipchrom:
cp = self.chrompack
cx = int(x * xfactor * cp) + self.xorigin
cy = int(y * yfactor * cp) + self.yorigin
cw = (w + cp - 1) / cp
ch = (h + cp - 1) / cp
gl.rectzoom(xfactor * cp, yfactor * cp)
gl.pixmode(GL.PM_SIZE, 16)
gl.writemask(self.mask - ((1 << self.c0bits) - 1))
gl.lrectwrite(cx, cy, cx + cw - 1, cy + ch - 1, \
chromdata)
#
if pmsize < 32:
gl.writemask((1 << self.c0bits) - 1)
gl.pixmode(GL.PM_SIZE, pmsize)
w = w / xpf
h = h / ypf
x = x / xpf
y = y / ypf
gl.rectzoom(xfactor, yfactor)
x = int(x * xfactor) + self.xorigin
y = int(y * yfactor) + self.yorigin
gl.lrectwrite(x, y, x + w - 1, y + h - 1, data)
gl.gflush()
import sys
# Classes to read and write CMIF video files.
# Implement 'jpeg' interface using SGI's compression library
import sys
# Classes to read and write CMIF video files.
