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Old 10-25-04, 02:19 AM   #1
sukhendu
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Join Date: Oct 2004
Posts: 2
Default Allocating video memory in NVdia cards

Hi,

I have NVDIA Quadro FX 1000 graphics card installed in my machine (with red hat linux (version 2.4.20-8). I wanted to use the AGP or the Video Memory to expedite my rendering. So, I called the glXAllocateMemoryNV function after including the header files glx.h and gl.h (which have these function definitions).

The program compiled perfectly but would not allocate memory (returned a null pointer).

The call which i made was:


if(glXAllocateMemory(sizeof(int),0.1,0.1,0.75)==NU LL)
{
cout<<"no memory allocated!!";
}

This would always go inside the if statement.


I am attaching the driver information of the card (all the files in /proc/driver/nvidia directory)

version:

NVRM version: NVIDIA Linux x86 nvidia.o Kernel Module 1.0-4363 Sat Apr 19 17:46:46 PDT 2003
GCC version: gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)


cards/0:

Model: Quadro FX 1000
IRQ: 11
Video BIOS: 04.30.20.16.05
Card Type: AGP

agp/card:

Fast Writes: Supported
SBA: Supported
AGP Rates: 8x 4x
Registers: 0x1f000e1b:0x1f004102

agp/host bridge:

Host Bridge: PCI device 8086:2578 (Intel Corp.)
Fast Writes: Supported
SBA: Supported
AGP Rates: 8x 4x
Registers: 0x1f004a1b:0x00000902

agp/status:

Status: Enabled
Driver: NVIDIA
AGP Rate: 8x
Fast Writes: Disabled
SBA: Disabled

Please help,

Thanks,

Sukhendu
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