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Vrec.py: sv now raises sv.error instead of RuntimeError.

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VFile.py: support for showing partial frames.
This commit is contained in:
Guido van Rossum 1992-09-22 15:01:43 +00:00
parent 66122d2dae
commit 42e07afe3d
2 changed files with 16 additions and 8 deletions
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22
Demo/sgi/video/VFile.py
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@ -273,7 +273,7 @@ class Displayer(VideoParams):
# setinfo() must reset some internal flags
def setinfo(self, values):
VideoParams.setinfo(values)
VideoParams.setinfo(self, values)
self.colormapinited = 0
self.skipchrom = 0
self.color0 = None
@ -282,33 +282,41 @@ class Displayer(VideoParams):
# 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)):
if not self.colormapinited:
self.initcolormap()
if self.fixcolor0:
gl.mapcolor(self.color0)
self.fixcolor0 = 0
w, h, pf = self.width, self.height, self.packfactor
pf = self.packfactor
factor = self.magnify
if pf: factor = factor * pf
if chromdata and not self.skipchrom:
cp = self.chrompack
cx = int(x*factor*cp) + self.xorigin
cy = int(y*factor*cp) + self.yorigin
cw = (w+cp-1)/cp
ch = (h+cp-1)/cp
gl.rectzoom(factor*cp, factor*cp)
gl.pixmode(GL.PM_SIZE, 16)
gl.writemask(self.mask - ((1 << self.c0bits) - 1))
gl.lrectwrite(self.xorigin, self.yorigin, \
self.xorigin + cw - 1, self.yorigin + ch - 1, \
chromdata)
gl.lrectwrite(cx, cy, cx + cw - 1, cy + ch - 1, \
chromdata)
#
if pf:
gl.writemask((1 << self.c0bits) - 1)
gl.pixmode(GL.PM_SIZE, 8)
w = w/pf
h = h/pf
x = x/pf
y = y/pf
gl.rectzoom(factor, factor)
gl.lrectwrite(self.xorigin, self.yorigin, \
self.xorigin + w - 1, self.yorigin + h - 1, data)
x = int(x*factor)+self.xorigin
y = int(y*factor)+self.yorigin
gl.lrectwrite(x, y, x + w - 1, y + h - 1, data)
gl.gflush()
# Initialize the window: set RGB or colormap mode as required,