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Warn if stride not a multiple of 4 bytes; use PM_SIZE instead of 5.

This commit is contained in:
Guido van Rossum 1992-05-07 15:21:25 +00:00
parent edb3a5fcf2
commit 864cde2831
1 changed files with 6 additions and 3 deletions
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9
Demo/sgi/video/video.py
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@ -40,6 +40,9 @@ def openvideo(name):
x = eval(line[:-1]) x = eval(line[:-1])
if len(x) == 3: w, h, pf = x if len(x) == 3: w, h, pf = x
else: w, h = x; pf = 2 else: w, h = x; pf = 2
if pf and w/pf % 4 <> 0:
sys.stderr.write( \
'warning: stride not a multiple of 4 -- may not work on Indigo XS\n')
return f, w, h, pf, colorinfo return f, w, h, pf, colorinfo
def loadframe(f,w,h,pf,af,spkr, (ybits,ibits,qbits,chrompack),mf): def loadframe(f,w,h,pf,af,spkr, (ybits,ibits,qbits,chrompack),mf):
@ -66,11 +69,11 @@ def loadframe(f,w,h,pf,af,spkr, (ybits,ibits,qbits,chrompack),mf):
ch = (h+chrompack-1)/chrompack ch = (h+chrompack-1)/chrompack
chromdata = f.read(2*cw*ch) chromdata = f.read(2*cw*ch)
rectzoom(pf*chrompack*mf,pf*chrompack*mf) rectzoom(pf*chrompack*mf,pf*chrompack*mf)
pixmode(5,16) pixmode(PM_SIZE,16)
writemask(0x7ff - ((1<<ybits)-1)) writemask(0x7ff - ((1<<ybits)-1))
lrectwrite(0,0,cw-1,ch-1,chromdata) lrectwrite(0,0,cw-1,ch-1,chromdata)
writemask((1<<ybits)-1) writemask((1<<ybits)-1)
pixmode(5,8) pixmode(PM_SIZE,8)
if pf: if pf:
rectzoom(pf*mf, pf*mf) rectzoom(pf*mf, pf*mf)
elif mf <> 1: elif mf <> 1:
@ -166,7 +169,7 @@ def main():
color(2048) color(2048)
clear() clear()
writemask(2047) writemask(2047)
pixmode(5,8) # 8 bit pixels pixmode(PM_SIZE,8) # 8 bit pixels
qdevice(ESCKEY) qdevice(ESCKEY)
qdevice(WINSHUT) qdevice(WINSHUT)
qdevice(WINQUIT) qdevice(WINQUIT)