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272 commits

Author SHA1 Message Date
Pauli Oikkonen d02207306d Create a header file for shared AVX2 code 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 361bf0c7db Precompute >=2 coeff encoding loop with 2-bit arithmetic 
Who needs 16x16b vectors when you can do practically the same with
16x2b pseudovectors in 32-bit general purpose registers!
 2018-12-18 19:41:09 +02:00
Pauli Oikkonen f66cb23d5b Optimize greater1 encoding loop 
Calculating the c1 variable need not be a serial operation!
 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 8c8b791c35 Vectorize kvz_context_get_sig_ctx_inc 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 033261eb74 Eliminate two branches using bit magic 2018-12-18 19:41:09 +02:00
Pauli Oikkonen c4434e8d04 Scan CG's in forward order to simplify finding last significant 2018-12-18 19:41:09 +02:00
Pauli Oikkonen efd097f5a5 Vectorize the coeff group loop to some extent 2018-12-18 19:41:09 +02:00
Pauli Oikkonen a01362e638 use the efficient method of reordering raster->scan 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 50a888e789 Use the efficient method to find first and last nz coeffs in block 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 7e9203f566 Scan coeff groups in scan order to help find last significant one 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 9a5a6fdbc7 Simplify two ifs in encode_coeff_nxn-avx2 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 37a2a8bac8 See if loop can be optimized by rearranging 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 584f2f74b6 Vectorize significant coeff group scanning loop 2018-12-18 19:41:09 +02:00
Pauli Oikkonen 1bfed73221 Add AVX2 strategy for encode_coding_tree 2018-12-18 19:41:09 +02:00
Pauli Oikkonen c3a6f3112a Add generic strategy group for encode_coding_tree 2018-12-18 19:41:09 +02:00
Sergei Trofimovich 68a70e45a1 x86 asm: mark stack as non-executable 
Gentoo's `scanelf` QA tool detects writable/executable stack
of assembly-writtent files as:

```
$ scanelf -qRa  .
 0644 LE !WX --- ---     ./src/strategies/x86_asm/.libs/picture-x86-asm-sad.o
 0644 LE !WX --- ---     ./src/strategies/x86_asm/.libs/picture-x86-asm-satd.o
 0644 LE !WX --- ---     ./src/strategies/x86_asm/picture-x86-asm-sad.o
 0644 LE !WX --- ---     ./src/strategies/x86_asm/picture-x86-asm-satd.o
```

Normally C compiler emits non-executable stack marking (or GNU assembler
via `-Wa,--noexecstack`).

The change adds non-executable stack marking for yasm-based assmbly files.

https://wiki.gentoo.org/wiki/Hardened/GNU_stack_quickstart has more details.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
 2018-12-16 11:31:56 +00:00
Reima Hyvönen 1fcc5c6a8d Merge branch 'bipred_recon' 2018-12-11 09:59:35 +02:00
Reima Hyvönen e4a10880f3 Added case 12 to bipred_recon no mov 2018-12-11 09:52:17 +02:00
Marko Viitanen a4f3968e52 Fix Visual Studio errors by initializing some variables used in AVX2 signhiding 2018-12-11 09:33:26 +02:00
Pauli Oikkonen c465578048 Add a descriptive comment to coefficient reordering 2018-12-03 15:36:32 +02:00
Pauli Oikkonen f78bf2ebcb Optimize q_coefs usage for indexed fetch 2018-12-03 15:36:32 +02:00
Pauli Oikkonen d9591f1b49 Eliminate midway buffering of reordered coefs 
TODO: For some mysterious reason seems slightly slower than the
buffered one
 2018-12-03 15:36:32 +02:00
Pauli Oikkonen 7fe454c51f Optimize get_cheapest_alternative() 2018-12-03 15:36:32 +02:00
Pauli Oikkonen 6bbd3e5a44 Optimize rearrange_512 function 2018-12-03 15:36:32 +02:00
Pauli Oikkonen cb8209d1b3 Vectorize transform coefficient reordering loop 2018-12-03 15:36:32 +02:00
Pauli Oikkonen 7cf4c7ae5f Rename "reduce" functions to hsum 
That's what the functions fundamendally do anyway
 2018-12-03 15:36:32 +02:00
Pauli Oikkonen 316cd8a846 Fix ALIGNED keyword and grow alignment to 64B 2018-12-03 15:36:32 +02:00
Pauli Oikkonen 1befc69a4c Implement sign bit hiding in AVX2 2018-12-03 15:36:32 +02:00
Reima Hyvönen f8696b54a4 Updated bipred_recon_avx2 in avx2/picture-avx2.c. Now it detects blocks that can be not equal to 8 (ie. width = 12) 2018-11-20 17:09:19 +02:00
Reima Hyvönen 710ba288db Chroma has some problems 2018-11-15 16:42:48 +02:00
Ari Lemmetti a832206bb6 Replace 32-bit incompatible instrinsics 2018-11-12 18:54:33 +02:00
Ari Lemmetti 5c774c4105 Rewrite most of FME and interpolation filters 
Changes had to break a lot of stuff and were just squashed into this horrible code dump
 2018-11-08 20:21:16 +02:00
Reima Hyvönen 7406c33a42 Some more cleaning 2018-10-26 12:25:18 +03:00
Reima Hyvönen 4c71546b2e Cleaned some coding 2018-10-26 12:19:44 +03:00
Reima Hyvönen 4fe3909e48 Switched luma to use 32bits size ints intstead of 16bit size 2018-10-24 18:24:46 +03:00
Reima Hyvönen 381e786e10 Trying to find the bug in luma 2018-10-11 18:08:41 +03:00
Reima Hyvönen 2f5f81bac3 removed the non-optimated bipred function 2018-10-09 11:19:23 +03:00
Reima Hyvönen 212a8e68fa Modified to avoid memory overflow, still some bug inside luma 2018-10-02 20:23:32 +03:00
Reima Hyvönen 896034b7cf Some renamed functions back 2018-08-28 15:31:10 +03:00
Reima Hyvönen e8b5e6db4c Did some merging 2018-08-28 15:26:27 +03:00
Reima Hyvönen 7de5c74434 Updated bipred_recon to work faster 2018-08-28 15:12:31 +03:00
Reima Hyvönen 47b357cca2 Comment one test 2018-08-27 18:52:14 +03:00
Reima Hyvönen 2ca99a44e8 Updated shuffle operation to be in right order 2018-08-27 18:16:38 +03:00
Reima Hyvönen 508b218a12 some modifications made to prevent reading too much 2018-08-14 10:50:39 +03:00
Reima Hyvönen 1d935ee888 some useless stuff removed 2018-08-13 16:47:11 +03:00
Reima Hyvönen ce3ac4c05e some modifications to no_mov 2018-08-13 16:41:02 +03:00
Reima Hyvönen 15a613ae94 test if no_mov breaks testing 2018-08-13 16:02:56 +03:00
Reima Hyvönen 97a2049e58 removed pointer declaration out from switch 2018-08-10 16:42:26 +03:00
Reima Hyvönen aa94bcedbc Stream is now pointer 2018-08-10 16:38:49 +03:00
Reima Hyvönen fa5b227ece 256 to 32 doesn't work, made them by hand 2018-08-10 16:01:20 +03:00