nvidia memory allocation fail
Author
hello,
i''m using linux, and whenever i want to allocate with glXAllocateMemoryNV it always return null.
anyone got an idea ? please help
thanx
I''m a windows user. So I use wglAllocateMemoryNV instead of glXAllocateMemoryNV. But it is the same function call.
*glXAllocateMemoryNV(sizei size,
float readFrequency,
float writeFrequency,
float priority)
Try to set readFrequency=0; writeFrequency=0; and priority=1.0;
if you want to allocate memory in Video memory.
Try to set readFrequency=0; writeFrequency=0; and priority=0.5;
if you want to allocate memory in System memory.
I hope that this can help you
bondi
*glXAllocateMemoryNV(sizei size,
float readFrequency,
float writeFrequency,
float priority)
Try to set readFrequency=0; writeFrequency=0; and priority=1.0;
if you want to allocate memory in Video memory.
Try to set readFrequency=0; writeFrequency=0; and priority=0.5;
if you want to allocate memory in System memory.
I hope that this can help you
bondi
Author
thanx for your reply Bondi,
i have tested all the combination values for these parameters but it failed anytime !
i haven''t tested it under Windows, and that''s a good idea.
i''ll tell you tomorrow, that maybe a system problem under Linux.
thanx
Fratt
i have tested all the combination values for these parameters but it failed anytime !
i haven''t tested it under Windows, and that''s a good idea.
i''ll tell you tomorrow, that maybe a system problem under Linux.
thanx
Fratt
In windows I must get the function pointer with wglGetProcAddress("wglAllocateMemoryNV") before I can use wglAllocateMemoryNV.
I don''t know, if it''s nessary in Linux. (use: void (*glXGetProcAddressARB(const GLubyte *))(); )
I don''t know, if it''s nessary in Linux. (use: void (*glXGetProcAddressARB(const GLubyte *))(); )
Author
of course it is !
but glXAllocateMemoryNv and glXFreeMemoryNV and others that need adress (as glDrawArrayNV) have got the same adress !!
so i think there is a problem. but where ?
do you know any site that talk about that ? i''m new so, i don''t know much.
thanx a lot !
ps : do you think that asking it to nvidia is a good idea ? or they will ignore me ?
Fratt
but glXAllocateMemoryNv and glXFreeMemoryNV and others that need adress (as glDrawArrayNV) have got the same adress !!
so i think there is a problem. but where ?
do you know any site that talk about that ? i''m new so, i don''t know much.
thanx a lot !
ps : do you think that asking it to nvidia is a good idea ? or they will ignore me ?
Fratt
Is AGP enabled? check the GL_RENDERER string for that.
Check your BIOS settings. Try running your code on other machines.
-Lev
Check your BIOS settings. Try running your code on other machines.
-Lev
Author
hello Lev,
thanx for your help here,
AGP is not enabled and i can''t as X doesn''t want to start if i enable it.
need some drivers ?
Fratt
thanx for your help here,
AGP is not enabled and i can''t as X doesn''t want to start if i enable it.
need some drivers ?
Fratt
Author
hello all of you !
i have succeed !!!
if fact, my kernel didn''t support the AGP. so, i''ve rebuild a new kernel 2.5.1 and now all is OK !
speed increase between twice or 3, and i don''t optimize a lot !
(no nvidia alloc and extension drawing).
before when doing cat /proc/nv/card0 it found a geforce2 mx PCI and now it''s a geforce 2 mx AGP.
AGP is 4x, but SBA is disable: how to enable it ?
and FW is disabled and not supported. how to do it ?
thanx a lot.
i''ll give soon all the sources for such a doing !!
thanx, specially -Lev !
thousand thanx
Fratt
i have succeed !!!
if fact, my kernel didn''t support the AGP. so, i''ve rebuild a new kernel 2.5.1 and now all is OK !
speed increase between twice or 3, and i don''t optimize a lot !
(no nvidia alloc and extension drawing).
before when doing cat /proc/nv/card0 it found a geforce2 mx PCI and now it''s a geforce 2 mx AGP.
AGP is 4x, but SBA is disable: how to enable it ?
and FW is disabled and not supported. how to do it ?
thanx a lot.
i''ll give soon all the sources for such a doing !!
thanx, specially -Lev !
thousand thanx
Fratt
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