16 commits

Author	SHA1	Message	Date
Pauli Oikkonen	9aaa6f260d	Fixes to enable portability	2018-12-18 20:42:09 +02:00
Pauli Oikkonen	2fdbbe9730	Move CG reordering code from quant-avx2 to shared header	2018-12-18 19:42:18 +02:00
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