Hi, I think I understand the design now. We need a executable that is
exe = <g file bytes> + <code bytes>
The code is simply to find .g file bytes and then dpopen them
Current code need argv[1] i.e. viewer.exe moss.g. I’m working on changing it
into argv[0] code.
I have another suggestion, how about we use “objcopy” tool instead of cat and
convert the g file into an object file “.o”. Then during compilation we simply
pass this object file to generate an executable:
gcc viewer.c moss.o
./viewer.exe
“print title”
From: Christopher Sean Morrison [mailto:brl...@mac.com]
Sent: 29 June 2016 00:56
To: BRL-CAD Developer Mailing List <brlcad-devel@lists.sourceforge.net>
Subject: Re: [brlcad-devel] #brlcad IRC availability times
Most that can help with libdm, librt are GMT-4. Mailing list should work; was
a message to the list missed? The more specifically you can frame a question,
the easier it will be to answer and provide some guidance.
Before involving libdm, you'll want to first get librt reading .g data that has
been appended onto a binary application. For that, it might make sense to
first write a "compiler" program that concatenates a .g onto the end. I.e.,
Program1 from a gviewer.c source you write:
gviewer.exe
# takes no arguments, fopens argv[0] and scans the file for a valid .g header.
# if it finds the header, just print out the title after a db_open()
Program2 from a gcompiler.c source you write:
gcompiler.exe -o moss.exe gviewer.exe moss.g
# fopens viewer.exe and moss.g, writes all the bytes to both to moss.exe
That's it. If you have a non-Windows box handy, you can skip program2, skip
writing gcompiler.c and just use the 'cat' program. Then you just need to
write gviewer.c, find the .g header bytes, then db_open it.
Cheers!
Sean
On Jun 28, 2016, at 04:13 PM, "(Asad) Syed, Asadullah Hussain"
<asadullah.huss...@tum.de<mailto:asadullah.huss...@tum.de>> wrote:
Hi, I am a ESA Summer of Code student
(http://brlcad.org/wiki/Geometry_Viewer_Application_for_BRL-CAD) and completely
new to brlcad source. I need some help especially with libdm, librt but
unfortunately mailing list/irc communication is proving to be difficult. So I
thought maybe it’s due to time zone difference (I am GMT+2).
Can anyone tell me the time period during which brlcad developers are online at
IRC (#brlcad).
LG,
Technische Universität München
Syed Asadullah Hussain
MS Informatik
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