8 Commits

Author SHA1 Message Date
skal
331ab34bcd cost*.c: harmonize the suffix namings
BUG=webp:355

Change-Id: Ic2e60eaab71cdffe1ebf93fc36aaa3eb25bbf08d
2017-07-31 17:18:32 -07:00
James Zern
668e1dd44f src/{dec,enc,utils}: give filenames a unique suffix
this avoids duplicates between these trees and dsp/, e.g., enc/tree.c,
dec/tree.c, making pulling the whole library source tree into one target
possible

BUG=webp:279

Change-Id: I060a614833c7c24ddd37bf641702ae6a5eef1775
2017-01-19 19:09:48 -08:00
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