Pascal Massimino
f262d6120e
speed-up SetResidualSSE2
...
(was unnecessarily complicated)
Before:
VP8SetResidualCoeffs: checksum = 1127918 elapsed = 475 ms.
Change-Id: Ia54bef86c45f9f474622ff16e594bf1da4f67ebd
After:
VP8SetResidualCoeffs: checksum = 1127918 elapsed = 404 ms.
2015-05-14 21:24:24 -07:00
James Zern
b243a4bc30
GetResidualCostSSE2: simplify abs calculation
...
max(coeff, 0 - coeff) works as well as min/max/sub or
(coeff ^ sign) - coeff
Change-Id: I9b11715372e49cd83820677bf4beba4a1c04931c
2015-04-21 20:29:12 -07:00
James Zern
b44eda3f60
dsp: add DSP_INIT_STUB
...
generates a stub function when the specific architecture is not enabled,
exposing a symbol in the module, avoiding a compiler warning
Change-Id: Ia9336e57466a9b5241b85c1c95838e91c9283147
2015-04-02 23:55:35 -07:00
James Zern
48e4ffd15e
dsp/cost*.c: rework WEBP_USE_<arch> ifdef
...
add a dummy init rather than repeating the '#ifdef WEBP_USE_...'
pattern.
Change-Id: Ie9bee5eaf9daebe0909ab1dda1cf1aa4ee1ef03e
2015-03-20 19:18:50 -07:00
Pascal Massimino
2382050748
1-2% faster encoding by removing an indirection in GetResidualCost()
...
The MIPS code for cost is not updated yet, that's why i keep Residual::*cost
around for now. Should be removed in favor of *costs later.
Change-Id: Id1d09a8c37ea8c5b34ad5eb8811d6a3ec6c4d89f
2015-02-19 08:44:35 +01:00
Pascal Massimino
2a407092ab
4-5% faster encoding using SSE2 for GetResidualCost
...
new file: cost_sse2.c
Change-Id: I4896c07f5ff2443ef743f4435fe2758d95a672ed
2015-02-18 09:41:02 +01:00
