diff options
| author | Martin Storsjö <martin@martin.st> | 2019-11-05 16:40:17 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2019-11-12 12:37:55 +0300 |
| commit | 9a100261b911d1bc96a36a3ec9bcbf6ee29dd228 (patch) | |
| tree | 1f42746a3d15ab7e70e0d6668f961e890e2eb645 /src/arm/32/util.S | |
| parent | c02ec6cffb864fb54d27b61e7c72e40946e301be (diff) | |
arm: 32: Port the arm64 NEON loopfilter to arm32
The code is a fairly exact 1:1 port of the ARM64 code, but operating
on 8 pixels at a time, instead of 16.
Relative speedup over C code according to checkasm:
Cortex A7 A8 A9 A53 A72 A73
lpf_h_sb_uv_w4_8bpc_neon: 1.36 1.40 1.25 1.71 1.55 1.59
lpf_h_sb_uv_w6_8bpc_neon: 2.18 2.11 1.74 2.65 2.32 2.34
lpf_h_sb_y_w4_8bpc_neon: 1.48 1.43 1.20 1.91 1.49 1.64
lpf_h_sb_y_w8_8bpc_neon: 2.34 2.05 1.78 2.84 2.35 2.69
lpf_h_sb_y_w16_8bpc_neon: 2.13 1.83 1.63 2.51 2.10 2.35
lpf_v_sb_uv_w4_8bpc_neon: 1.69 1.66 1.60 2.16 2.24 2.24
lpf_v_sb_uv_w6_8bpc_neon: 2.68 2.43 2.22 3.53 3.44 3.35
lpf_v_sb_y_w4_8bpc_neon: 1.74 1.74 1.43 2.34 2.14 2.18
lpf_v_sb_y_w8_8bpc_neon: 2.92 2.47 2.19 3.55 3.22 3.54
lpf_v_sb_y_w16_8bpc_neon: 2.62 2.19 1.98 3.25 2.80 3.10
Comparison to the original ARM64 assembly:
ARM64: A53 A72 A73
lpf_h_sb_uv_w4_8bpc_neon: 702.5 518.2 529.1
lpf_h_sb_uv_w6_8bpc_neon: 1007.3 672.6 736.6
lpf_h_sb_y_w4_8bpc_neon: 1652.8 1261.2 1276.5
lpf_h_sb_y_w8_8bpc_neon: 2144.7 1559.8 1638.7
lpf_h_sb_y_w16_8bpc_neon: 2318.3 1757.2 1792.8
lpf_v_sb_uv_w4_8bpc_neon: 447.1 302.0 292.4
lpf_v_sb_uv_w6_8bpc_neon: 600.0 397.7 406.9
lpf_v_sb_y_w4_8bpc_neon: 1212.6 840.1 818.4
lpf_v_sb_y_w8_8bpc_neon: 1623.3 1167.4 1156.7
lpf_v_sb_y_w16_8bpc_neon: 1694.9 1237.9 1182.3
ARM32:
lpf_h_sb_uv_w4_8bpc_neon: 821.2 501.1 500.8
lpf_h_sb_uv_w6_8bpc_neon: 1232.0 715.7 746.6
lpf_h_sb_y_w4_8bpc_neon: 2208.1 1373.2 1414.7
lpf_h_sb_y_w8_8bpc_neon: 3138.3 1843.1 1915.2
lpf_h_sb_y_w16_8bpc_neon: 3293.1 1842.5 1975.9
lpf_v_sb_uv_w4_8bpc_neon: 619.9 326.7 324.9
lpf_v_sb_uv_w6_8bpc_neon: 855.9 446.7 468.2
lpf_v_sb_y_w4_8bpc_neon: 1737.6 935.5 1007.0
lpf_v_sb_y_w8_8bpc_neon: 2346.7 1232.8 1298.3
lpf_v_sb_y_w16_8bpc_neon: 2353.4 1283.4 1379.9
Diffstat (limited to 'src/arm/32/util.S')
| -rw-r--r-- | src/arm/32/util.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arm/32/util.S b/src/arm/32/util.S index 53d60af..ea4afc3 100644 --- a/src/arm/32/util.S +++ b/src/arm/32/util.S @@ -84,4 +84,11 @@ vtrn.8 \r6, \r7 .endm +.macro transpose_4x8b q0, q1, r0, r1, r2, r3 + vtrn.16 \q0, \q1 + + vtrn.8 \r0, \r1 + vtrn.8 \r2, \r3 +.endm + #endif /* DAV1D_SRC_ARM_32_UTIL_S */ |