Blackmagic Forum

Hello,

Using CopyResource from blackmagicRawResourceTypeBufferMetal -> blackmagicRawResourceTypeBufferCPU returns E_FAIL when the CPU buffer pointed to is allocated with tbb scalable_malloc versus new. blackmagicRawResourceTypeBufferCPU -> blackmagicRawResourceTypeBufferCPU results in S_OK. Is there a way to make CopyResource work with tbb scalable_malloc CPU buffers?

Using MacOS Catalina 10.15.7 .

Hi Carmen,

This should work, but here are a few things to check:

• You are using GPU/Metal pipeline (context + command queue).
• The TBB scalable_malloc is page aligned (address and size).
• Whether the memory pool used by TBB can be locked by Metal.
• Ensure that there aren't already too many page memory allocations for system.

Please let me know if this helps.

Regards
Cameron

Great, thank you. Looks like it wasn't aligned.