Ryzom

There is no many things to do :
- Release / enable context between thread using glXMakeCurrent/wglMakeCurrent/.
- Modify code, to make the rendering in thread 0

For the momment I've good results with the first method. I'm able to connect to R², but still can't switch character.
It's hard to say if it is a OGL/64 bit/linux issue :)

Program received signal SIGSEGV, Segmentation fault.
0x000000000075f7e3 in construct (bankStr=<value optimized out>) at /usr/lib64/gcc/x86_64-slackware-linux/4.5.0/../../../../include/c++/4.5.0/ext/new_allocator.h:105
105           { ::new((void *)__p) _Tp(__val); }
(gdb) bt
#0  0x000000000075f7e3 in construct (bankStr=<value optimized out>) at /usr/lib64/gcc/x86_64-slackware-linux/4.5.0/../../../../include/c++/4.5.0/ext/new_allocator.h:105
#1  std::vector<TCDBBank, std::allocator<TCDBBank> >::push_back (bankStr=<value optimized out>) at /usr/lib64/gcc/x86_64-slackware-linux/4.5.0/../../../../include/c++/4.5.0/bits/stl_vector.h:745
#2  CCDBNodeBranch::mapNodeByBank (bankStr=<value optimized out>) at /srv/vol1/src/ryzom/code/ryzom/client/src/cdb_branch.cpp:122
#3  0x0000000000761c6f in addNode (newNode=0xbc67ac0, newName="GameTime", parent=0x13f7b170, nodes=std::vector of length 2, capacity 2 = {...}, nodesSorted=<value optimized out>, child=@0x7fffffffc5c8, bankName="PLR", atomBranch=false, 
    clientOnly=false, progressCallBack=..., mapBanks=true) at /srv/vol1/src/ryzom/code/ryzom/client/src/cdb_branch.cpp:152
#4  0x00000000007657ae in CCDBNodeBranch::init (this=0x13f7b170, node=0xaa1d590, progressCallBack=..., mapBanks=true) at /srv/vol1/src/ryzom/code/ryzom/client/src/cdb_branch.cpp:213
#5  0x00000000008d7285 in CCDBSynchronised::init (this=<value optimized out>, fileName="[email protected]", progressCallBack=...) at /srv/vol1/src/ryzom/code/ryzom/client/src/cdb_synchronised.cpp:85
#6  0x0000000000829097 in initMainLoop () at /srv/vol1/src/ryzom/code/ryzom/client/src/init_main_loop.cpp:473
#7  0x000000000078a3ef in CFarTP::sendReady (this=0x12cc460) at /srv/vol1/src/ryzom/code/ryzom/client/src/far_tp.cpp:1205
#8  0x000000000078ae30 in CFarTP::farTPmainLoop (this=0x12cc460) at /srv/vol1/src/ryzom/code/ryzom/client/src/far_tp.cpp:1457
#9  0x0000000000777485 in mainLoop () at /srv/vol1/src/ryzom/code/ryzom/client/src/main_loop.cpp:2893
#10 0x00000000008bbf17 in main (argc=<value optimized out>, argv=<value optimized out>) at /srv/vol1/src/ryzom/code/ryzom/client/src/client.cpp:618

This patch implement 2 new methods for drivers ( and increment drivers revision ):
- attachContext() : Attach an OpenGL context on the current thread
- detachContext() : Detach a OpenGL context from the current thread

I have not found any D3D equivalent. So those methods are abitrary returning true in the D3D driver.

This patch also fix a memory overflow in cdb_branch.

Q&A:
All drivers pass thru gDebugger with no warning/error.
A special driver have been built to ensure thread context switching is ok. Every things is ok except in connection.cpp

Platform Q&A :
Linux x64 NVidia driver: No more problem.
Seven x64 ATI : Well I don't know, it's working without this patch, so why should we take any risk ? in the other hand it's the way to do multithreaded with opengl.

Note: We must find a way to nlerror when driver revision is not in sync :)