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Martin Storsjö a67ae67083 arm: vp9: Add NEON itxfm routines 
This work is sponsored by, and copyright, Google.

For the transforms up to 8x8, we can fit all the data (including
temporaries) in registers and just do a straightforward transform
of all the data. For 16x16, we do a transform of 4x16 pixels in
4 slices, using a temporary buffer. For 32x32, we transform 4x32
pixels at a time, in two steps of 4x16 pixels each.

Examples of relative speedup compared to the C version, from checkasm:
                         Cortex       A7     A8     A9    A53
vp9_inv_adst_adst_4x4_add_neon:     3.39   5.83   4.17   4.01
vp9_inv_adst_adst_8x8_add_neon:     3.79   4.86   4.23   3.98
vp9_inv_adst_adst_16x16_add_neon:   3.33   4.36   4.11   4.16
vp9_inv_dct_dct_4x4_add_neon:       4.06   6.16   4.59   4.46
vp9_inv_dct_dct_8x8_add_neon:       4.61   6.01   4.98   4.86
vp9_inv_dct_dct_16x16_add_neon:     3.35   3.44   3.36   3.79
vp9_inv_dct_dct_32x32_add_neon:     3.89   3.50   3.79   4.42
vp9_inv_wht_wht_4x4_add_neon:       3.22   5.13   3.53   3.77

Thus, the speedup vs C code is around 3-6x.

This is mostly marginally faster than the corresponding routines
in libvpx on most cores, tested with their 32x32 idct (compared to
vpx_idct32x32_1024_add_neon). These numbers are slightly in libvpx's
favour since their version doesn't clear the input buffer like ours
do (although the effect of that on the total runtime probably is
negligible.)

                           Cortex       A7       A8       A9      A53
vp9_inv_dct_dct_32x32_add_neon:    18436.8  16874.1  14235.1  11988.9
libvpx vpx_idct32x32_1024_add_neon 20789.0  13344.3  15049.9  13030.5

Only on the Cortex A8, the libvpx function is faster. On the other cores,
ours is slightly faster even though ours has got source block clearing
integrated.

Signed-off-by: Martin Storsjö <martin@martin.st>
2016-11-11 11:09:05 +02:00
..
aac.h
aacpsdsp_init_arm.c
aacpsdsp_neon.S
ac3dsp_arm.S
ac3dsp_armv6.S
ac3dsp_init_arm.c dsputil: Move apply_window_int16 to ac3dsp 2013-12-08 17:57:15 +01:00
ac3dsp_neon.S dsputil: Move apply_window_int16 to ac3dsp 2013-12-08 17:57:15 +01:00
apedsp_init_arm.c dsputil: Move APE-specific bits into apedsp 2014-05-29 06:41:15 -07:00
apedsp_neon.S dsputil: Move APE-specific bits into apedsp 2014-05-29 06:41:15 -07:00
asm-offsets.h mpegvideo: move the MpegEncContext fields used from arm asm to the beginning 2014-04-29 14:49:42 +02:00
audiodsp_arm.h dsputil: Split audio operations off into a separate context 2014-06-22 06:20:15 -07:00
audiodsp_init_arm.c dsputil: Split audio operations off into a separate context 2014-06-22 06:20:15 -07:00
audiodsp_init_neon.c audiodsp: reorder arguments for vector_clipf 2016-09-22 09:47:52 +02:00
audiodsp_neon.S audiodsp: reorder arguments for vector_clipf 2016-09-22 09:47:52 +02:00
blockdsp_arm.h blockdsp: drop the high_bit_depth parameter 2016-09-22 09:47:52 +02:00
blockdsp_init_arm.c blockdsp: drop the high_bit_depth parameter 2016-09-22 09:47:52 +02:00
blockdsp_init_neon.c blockdsp: drop the high_bit_depth parameter 2016-09-22 09:47:52 +02:00
blockdsp_neon.S dsputil: Split clear_block*/fill_block* off into a separate context 2014-06-18 14:07:23 -07:00
cabac.h arm: get_cabac inline asm 2014-03-09 00:45:34 +01:00
dca.h dcadec: simplify decoding of VQ high frequencies 2014-02-28 13:03:22 +01:00
dcadsp_init_arm.c dca: remove unused decode_hf function and quant_d tables 2015-12-24 13:58:18 +01:00
dcadsp_neon.S dca: remove unused decode_hf function and quant_d tables 2015-12-24 13:58:18 +01:00
dcadsp_vfp.S dcadec: remove scaling in lfe_interpolation_fir 2014-02-28 13:00:47 +01:00
fft_fixed_init_arm.c fft: Split MDCT bits off from FFT 2016-03-01 10:18:28 +01:00
fft_fixed_neon.S arm: Use .data.rel.ro for const data with relocations 2014-12-09 11:43:25 +02:00
fft_init_arm.c fft: Split MDCT bits off from FFT 2016-03-01 10:18:28 +01:00
fft_neon.S arm: Use .data.rel.ro for const data with relocations 2014-12-09 11:43:25 +02:00
fft_vfp.S arm: Use .data.rel.ro for const data with relocations 2014-12-09 11:43:25 +02:00
flacdsp_arm.S
flacdsp_init_arm.c
fmtconvert_init_arm.c arm: add ff_int32_to_float_fmul_array8_neon 2015-12-14 16:45:02 +01:00
fmtconvert_neon.S arm: add ff_int32_to_float_fmul_array8_neon 2015-12-14 16:45:02 +01:00
fmtconvert_vfp.S
g722dsp_init_arm.c g722: Add ARM NEON implementation for g722_apply_qmf() 2015-02-15 22:47:21 +02:00
g722dsp_neon.S g722: Add ARM NEON implementation for g722_apply_qmf() 2015-02-15 22:47:21 +02:00
h264chroma_init_arm.c h264chroma: Change type of stride parameters to ptrdiff_t 2016-09-29 14:48:04 +02:00
h264cmc_neon.S h264chroma: Change type of stride parameters to ptrdiff_t 2016-09-29 14:48:04 +02:00
h264dsp_init_arm.c h264: Move start code search functions into separate source files. 2014-08-04 22:22:54 +02:00
h264dsp_neon.S
h264idct_neon.S arm: Add X() around all references to extern symbols 2014-02-07 15:13:58 +02:00
h264pred_init_arm.c h264: arm: use intra pred8x8 functions only for chroma_format_idc <= 1 2015-07-18 00:28:49 +02:00
h264pred_neon.S
h264qpel_init_arm.c qpeldsp: Mark source pointer in qpel_mc_func function pointer const 2014-07-25 02:52:54 -07:00
h264qpel_neon.S
hpeldsp_arm.h arm: Use full filenames as multiple inclusion guards 2014-01-14 00:04:52 +01:00
hpeldsp_arm.S hpeldsp: arm: Update comments left behind in 25841dfe80 2016-09-29 14:48:03 +02:00
hpeldsp_armv6.S arm: hpeldsp: fix put_pixels8_y2_{,no_rnd_}armv6 2014-03-08 18:31:57 +01:00
hpeldsp_init_arm.c dsputil: Refactor duplicated CALL_2X_PIXELS / PIXELS16 macros 2014-03-22 06:17:29 -07:00
hpeldsp_init_armv6.c
hpeldsp_init_neon.c
hpeldsp_neon.S
idct.h idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
idctdsp_arm.h dsputil: Split off IDCT bits into their own context 2014-06-30 07:58:46 -07:00
idctdsp_arm.S idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
idctdsp_armv6.S dsputil: Split off IDCT bits into their own context 2014-06-30 07:58:46 -07:00
idctdsp_init_arm.c idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
idctdsp_init_armv5te.c idct: Move arm-specific declarations to a header in the arm directory 2014-07-20 13:02:17 -07:00
idctdsp_init_armv6.c idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
idctdsp_init_neon.c idct: Move arm-specific declarations to a header in the arm directory 2014-07-20 13:02:17 -07:00
idctdsp_neon.S dsputil: Split off IDCT bits into their own context 2014-06-30 07:58:46 -07:00
int_neon.S dsputil: Move APE-specific bits into apedsp 2014-05-29 06:41:15 -07:00
jrevdct_arm.S
Makefile arm: vp9: Add NEON itxfm routines 2016-11-11 11:09:05 +02:00
mathops.h
mdct_fixed_init_arm.c fft: Split MDCT bits off from FFT 2016-03-01 10:18:28 +01:00
mdct_fixed_neon.S
mdct_init_arm.c fft: Split MDCT bits off from FFT 2016-03-01 10:18:28 +01:00
mdct_neon.S arm: Add X() around all references to extern symbols 2014-02-07 15:13:58 +02:00
mdct_vfp.S armv6: Accelerate ff_imdct_half for general case (mdct_bits != 6) 2014-07-18 01:34:08 +03:00
me_cmp_armv6.S dsputil: Split motion estimation compare bits off into their own context 2014-07-17 09:07:10 -07:00
me_cmp_init_arm.c motion_est: convert stride to ptrdiff_t 2014-11-24 01:30:10 +00:00
mlpdsp_armv5te.S arm: mlpdsp: handle pic offset calculation in a macro 2014-12-09 22:00:08 +01:00
mlpdsp_armv6.S cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
mlpdsp_init_arm.c truehd: add hand-scheduled ARM asm version of ff_mlp_pack_output. 2014-03-26 19:54:32 +02:00
mpegaudiodsp_fixed_armv6.S
mpegaudiodsp_init_arm.c
mpegvideo_arm.c mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes 2014-08-15 01:26:33 -07:00
mpegvideo_arm.h mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes 2014-08-15 01:26:33 -07:00
mpegvideo_armv5te.c cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
mpegvideo_armv5te_s.S
mpegvideo_neon.S arm: Add X() around all references to extern symbols 2014-02-07 15:13:58 +02:00
mpegvideoencdsp_armv6.S dsputil: Move pix_sum, pix_norm1, shrink function pointers to mpegvideoenc 2014-07-06 14:26:53 -07:00
mpegvideoencdsp_init_arm.c dsputil: Move pix_sum, pix_norm1, shrink function pointers to mpegvideoenc 2014-07-06 14:26:53 -07:00
neon.S
neontest.c lavc: add clobber tests for the new encoding/decoding API 2016-09-28 10:01:52 +02:00
pixblockdsp_armv6.S dsputil: Split off pixel block routines into their own context 2014-07-09 08:05:26 -07:00
pixblockdsp_init_arm.c pixblockdsp: Change type of stride parameters to ptrdiff_t 2016-09-14 14:12:36 +02:00
rdft_init_arm.c rdft: arm: Split RDFT initialization into a separate file 2016-02-26 14:34:58 +01:00
rdft_neon.S
rv34dsp_init_arm.c
rv34dsp_neon.S
rv40dsp_init_arm.c qpeldsp: Mark source pointer in qpel_mc_func function pointer const 2014-07-25 02:52:54 -07:00
rv40dsp_neon.S
sbrdsp_init_arm.c
sbrdsp_neon.S
simple_idct_arm.S cosmetics: Fix spelling mistakes 2016-05-04 18:16:21 +02:00
simple_idct_armv5te.S simple_idct: arm: Drop disabled code variant 2016-08-17 12:21:54 +02:00
simple_idct_armv6.S idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
simple_idct_neon.S idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
startcode.h h264: Move start code search functions into separate source files. 2014-08-04 22:22:54 +02:00
startcode_armv6.S h264: Move start code search functions into separate source files. 2014-08-04 22:22:54 +02:00
synth_filter_neon.S
synth_filter_vfp.S arm: cosmetics: Consistently use lowercase for shift operators 2014-07-18 11:17:40 +03:00
vc1dsp.h vc1: arm: Add NEON assembly 2013-12-20 14:53:39 +02:00
vc1dsp_init_arm.c vc-1: Add platform-specific start code search routine to VC1DSPContext. 2014-08-04 22:22:54 +02:00
vc1dsp_init_neon.c h264chroma: Change type of stride parameters to ptrdiff_t 2016-09-29 14:48:04 +02:00
vc1dsp_neon.S idct: Change type of array stride parameters to ptrdiff_t 2016-09-29 14:48:03 +02:00
videodsp_arm.h
videodsp_armv5te.S arm: use a local label instead of the function symbol in ff_prefetch_arm 2015-07-20 23:10:29 +02:00
videodsp_init_arm.c
videodsp_init_armv5te.c
vorbisdsp_init_arm.c
vorbisdsp_neon.S
vp3dsp_init_arm.c vp3: Change type of stride parameters to ptrdiff_t 2016-08-26 11:36:26 +02:00
vp3dsp_neon.S arm: Add a missing # as prefix for an immediate constant 2014-01-07 19:30:13 +02:00
vp6dsp_init_arm.c vp56: Separate VP5 and VP6 dsp initialization 2016-08-26 11:50:22 +02:00
vp6dsp_neon.S
vp8.h arm: asm decode_block_coeffs_internal is vp8 specific 2014-04-04 10:39:29 +02:00
vp8_armv6.S
vp8dsp.h On2 VP7 decoder 2014-04-04 04:00:11 +02:00
vp8dsp_armv6.S vp8: Update some assembly comments left unchanged in bd66f073fe 2016-08-26 11:36:53 +02:00
vp8dsp_init_arm.c On2 VP7 decoder 2014-04-04 04:00:11 +02:00
vp8dsp_init_armv6.c On2 VP7 decoder 2014-04-04 04:00:11 +02:00
vp8dsp_init_neon.c On2 VP7 decoder 2014-04-04 04:00:11 +02:00
vp8dsp_neon.S arm: Fix a typo in a comment 2016-07-06 22:58:51 +03:00
vp9dsp_init_arm.c arm: vp9: Add NEON itxfm routines 2016-11-11 11:09:05 +02:00
vp9itxfm_neon.S arm: vp9: Add NEON itxfm routines 2016-11-11 11:09:05 +02:00
vp9mc_neon.S arm: vp9mc: Use a different helper register for PIC loads 2016-11-10 14:01:04 +02:00
vp56_arith.h