Windows XP中具有多个视频卡的OpenGL渲染 [英] OpenGL rendering in Windows XP with multiple video cards
问题描述
我正在为Windows XP开发OpenGL应用程序.目标计算机具有2个NVIDIA GeForce 9800GT视频卡，这是必需的，因为该应用程序需要输出2个模拟视频流.
I'm developing an OpenGL application for Windows XP. The target machine has 2 NVIDIA GeForce 9800GT video cards, which are needed because the application needs to have output 2 streams of analog video.
应用程序本身有两个OpenGL窗口，每个视频卡一个.每个视频卡都连接到一个监视器.至于代码，它基于最小OpenGL示例.
The application itself has two OpenGL windows, one for each video card. Each video card is connected to one monitor. As for the code, it's based on a minimal OpenGL example.
如何知道应用程序是否同时使用两个视频卡进行渲染?
How can I know if the application is utilizing both video cards for rendering?
此刻，我不在乎该应用程序仅在Windows XP上运行还是仅在NVIDIA视频卡上运行，我只需要知道两者的工作方式即可.
At the moment, I don't care if the application only runs on Windows XP or only with NVIDIA video cards, I just need to know how the two are working.
推荐答案
我认为您需要阅读 WGL_nv_gpu_affinity 扩展名.您创建亲和力掩码并将wglMakeCurrent()与它们结合使用.这里有一些指针:
I think you need to read up on the WGL_nv_gpu_affinity extension. You create affinity masks and use wglMakeCurrent() in conjunction with them. Here are some pointers:
http://developer.download.nvidia.com/opengl/specs/WGL_nv_gpu_affinity.txt
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