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authorLynne <dev@lynne.ee>2020-11-25 00:20:06 +0100
committerLynne <dev@lynne.ee>2020-11-25 23:14:01 +0100
commit18a6535b0802b46989afac6f57a6a046bd4c26a3 (patch)
tree2c64fe078e3c8de759ccd530bedc589c6694f43c /libavcodec/x86/hevc_mc.asm
parent9cf1811d3d1df429bd882090dcab32e3449777f4 (diff)
downloadffmpeg-18a6535b0802b46989afac6f57a6a046bd4c26a3.tar.gz
hwcontext_vulkan: always attempt to map host memory when transferring
This relies on the fact that host memory is always going to be required to be aligned to the platform's page size, which means we can adjust the pointers when we map them to buffers and therefore skip an entire copy. This has already had extensive testing in libplacebo without problems, so its safe to use here as well. Speeds up downloads and uploads on platforms which do not pool their memory hugely, but less so on platforms that do. We can pool the buffers ourselves, but that can come as a later patch if necessary.
Diffstat (limited to 'libavcodec/x86/hevc_mc.asm')
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