Hallo!
- does pdp work in RGB(A) only?
No, the standard colorspace is YUV.
- when Gem is in yuv mode, is it 24 bits per pixel .. or is it 16 bits
per pixel, as in YUV4:2:2 .... where 2 adjacent pixels share UV data ?
The standard YUV-mode in Gem is YUV422 (at least the code says that) and one pixel is 8 bit.
LG Georg
Zitiere Georg Holzmann grhPD@gmx.at:
- when Gem is in yuv mode, is it 24 bits per pixel .. or is it 16
bits
per pixel, as in YUV4:2:2 .... where 2 adjacent pixels share UV data
? The standard YUV-mode in Gem is YUV422 (at least the code says that) and one pixel is 8 bit.
well, it is 32bit for 2 adjacent pixels, so it is (statistically) 16bit per pixel. it _is_ YUV422
mfg.ads.r IOhannes
Hi folks
has anyone successfully built gem2pdp or pix_2pdp for OS X? i would love a binary to test.
i get this error when buiding on OS X 10.3.9
In file included from pdp-light.h:73,
from gem2pdp.h:15,
from gem2pdp.cpp:11:
/Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/
include/pdp_packet.h:114: warning: declaration
does not declare anything
/Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/
include/pdp_packet.h:114: error: parse
error before new' /Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/ include/pdp_packet.h:167: error: parse error before
new'
gem2pdp.cpp: In member function virtual void gem2pdp::bangMess()': gem2pdp.cpp:125: warning: invalid conversion from
t_int*' to `int*'
make: *** [gem2pdp.o] Error 1
Patrick Pagano, B.S.,M.F.A Digital Media Specialist Digital Worlds Institute University Of Florida (352) 294-2082
Hallo!
In file included from pdp-light.h:73, from gem2pdp.h:15, from gem2pdp.cpp:11: /Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/ include/pdp_packet.h:114: warning: declaration does not declare anything /Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/ include/pdp_packet.h:114: error: parse error before
new' /Users/patrickp/Desktop/pdp_pidip_osx/usr/local/lib/pd/pdp_pidip_osx/ include/pdp_packet.h:167: error: parse error before
new'
hm - this is an error in the pdp sources. Don't know how to compile pdp on osx :(
LG Georg
Georg Holzmann wrote:
Hallo!
- does pdp work in RGB(A) only?
No, the standard colorspace is YUV.
YUV 4:2:2 ?
- when Gem is in yuv mode, is it 24 bits per pixel .. or is it 16 bits
per pixel, as in YUV4:2:2 .... where 2 adjacent pixels share UV data ?
The standard YUV-mode in Gem is YUV422 (at least the code says that) and one pixel is 8 bit.
8 bits per pixel? how does that work?
do you mean each value is 8 bits ..... in which case one YUV 4:2:2 pixel takes up 24 bits?
etienne
On Jun 19, 2005, at 6:25 AM, etienne deleflie wrote:
- when Gem is in yuv mode, is it 24 bits per pixel .. or is it 16
bits per pixel, as in YUV4:2:2 .... where 2 adjacent pixels share UV data ?
The standard YUV-mode in Gem is YUV422 (at least the code says that) and one pixel is 8 bit.
8 bits per pixel? how does that work? do you mean each value is 8 bits ..... in which case one YUV 4:2:2 pixel takes up 24 bits?
It's standard 2vuy packing of 8 bits per U Y V Y. Each pixel has a full 24 bits of data, but only requires 32 bits of storage for two pixels (which of course you already know since you and Chris K taught me this many years ago!).
On OSX, YUV is the default colorspace for GEM, while Windows and Linux default to RGBA.