Add support for multiple GPUs on Windows #187
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If the primary GPU is not an Intel GPU, libvpl cannot detect the Intel GPU in the Windows environment, even though it is present. The situation is, for example, using an NVIDIA graphics card with an Intel CPU that has an embedded GPU. This patch allows the Intel GPU to be detected in such situations. Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
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If the primary GPU is not an Intel GPU, libvpl cannot detect the Intel GPU in the Windows environment, even though it is present. The situation is, for example, using an NVIDIA graphics card with an Intel CPU that has an embedded GPU. This patch allows the Intel GPU to be detected in such situations.
Issue
When a GPU of other than Intel is primary, the Intel GPU fails to be detected by libvpl for MFX API.
Solution
Search Intel GPU (vendor ID == 0x8086) whose adapterNum is other than 0 in
MFXLibraryIterator::GetRegkeyDir().How Tested
Apply the proposed patch to cygwin libvpl package, and run
mpv -vd h264_qsv videofile.mp4in my environment: