Commit message (Collapse) | Author | Age | Files | Lines | |
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* | volume: Add Orc-based optimised volume scaling | Arun Raghavan | 2011-03-05 | 1 | -0/+37 |
This adds volume scaling for 1- and 2-channel software volume scaling using Orc. While testing the MMX and SSE backends on a Core2, I see an ~2x performance benefit over the hand-rolled MMX and SSE code. Since I haven't been able to test on other architectures, the Orc code is only used when MMX/SSE* is present. This can be changed in the future after testing on AMD and ARM machines. |