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aarch64: vp9itxfm16: Do a simpler half/quarter idct16/idct32 when possible
This work is sponsored by, and copyright, Google. This avoids loading and calculating coefficients that we know will be zero, and avoids filling the temp buffer with zeros in places where we know the second pass won't read. This gives a pretty substantial speedup for the smaller subpartitions. The code size increases from 21512 bytes to 31400 bytes. The idct16/32_end macros are moved above the individual functions; the instructions themselves are unchanged, but since new functions are added at the same place where the code is moved from, the diff looks rather messy. Before: vp9_inv_dct_dct_16x16_sub1_add_10_neon: 284.6 vp9_inv_dct_dct_16x16_sub2_add_10_neon: 1902.7 vp9_inv_dct_dct_16x16_sub4_add_10_neon: 1903.0 vp9_inv_dct_dct_16x16_sub8_add_10_neon: 2201.1 vp9_inv_dct_dct_16x16_sub12_add_10_neon: 2510.0 vp9_inv_dct_dct_16x16_sub16_add_10_neon: 2821.3 vp9_inv_dct_dct_32x32_sub1_add_10_neon: 1011.6 vp9_inv_dct_dct_32x32_sub2_add_10_neon: 9716.5 vp9_inv_dct_dct_32x32_sub4_add_10_neon: 9704.9 vp9_inv_dct_dct_32x32_sub8_add_10_neon: 10641.7 vp9_inv_dct_dct_32x32_sub12_add_10_neon: 11555.7 vp9_inv_dct_dct_32x32_sub16_add_10_neon: 12499.8 vp9_inv_dct_dct_32x32_sub20_add_10_neon: 13403.7 vp9_inv_dct_dct_32x32_sub24_add_10_neon: 14335.8 vp9_inv_dct_dct_32x32_sub28_add_10_neon: 15253.6 vp9_inv_dct_dct_32x32_sub32_add_10_neon: 16179.5 After: vp9_inv_dct_dct_16x16_sub1_add_10_neon: 282.8 vp9_inv_dct_dct_16x16_sub2_add_10_neon: 1142.4 vp9_inv_dct_dct_16x16_sub4_add_10_neon: 1139.0 vp9_inv_dct_dct_16x16_sub8_add_10_neon: 1772.9 vp9_inv_dct_dct_16x16_sub12_add_10_neon: 2515.2 vp9_inv_dct_dct_16x16_sub16_add_10_neon: 2823.5 vp9_inv_dct_dct_32x32_sub1_add_10_neon: 1012.7 vp9_inv_dct_dct_32x32_sub2_add_10_neon: 6944.4 vp9_inv_dct_dct_32x32_sub4_add_10_neon: 6944.2 vp9_inv_dct_dct_32x32_sub8_add_10_neon: 7609.8 vp9_inv_dct_dct_32x32_sub12_add_10_neon: 9953.4 vp9_inv_dct_dct_32x32_sub16_add_10_neon: 10770.1 vp9_inv_dct_dct_32x32_sub20_add_10_neon: 13418.8 vp9_inv_dct_dct_32x32_sub24_add_10_neon: 14330.7 vp9_inv_dct_dct_32x32_sub28_add_10_neon: 15257.1 vp9_inv_dct_dct_32x32_sub32_add_10_neon: 16190.6 Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
parent
eabc5abf94
commit
61b8a9ea29
@ -124,6 +124,17 @@ endconst
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.endif
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.endm
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// Same as dmbutterfly0 above, but treating the input in in2 as zero,
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// writing the same output into both out1 and out2.
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.macro dmbutterfly0_h out1, out2, in1, in2, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6
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smull \tmp1\().2d, \in1\().2s, v0.s[0]
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smull2 \tmp2\().2d, \in1\().4s, v0.s[0]
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rshrn \out1\().2s, \tmp1\().2d, #14
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rshrn2 \out1\().4s, \tmp2\().2d, #14
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rshrn \out2\().2s, \tmp1\().2d, #14
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rshrn2 \out2\().4s, \tmp2\().2d, #14
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.endm
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// out1,out2 = in1 * coef1 - in2 * coef2
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// out3,out4 = in1 * coef2 + in2 * coef1
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// out are 4 x .2d registers, in are 2 x .4s registers
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@ -153,6 +164,43 @@ endconst
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rshrn2 \inout2\().4s, \tmp4\().2d, #14
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.endm
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// Same as dmbutterfly above, but treating the input in inout2 as zero
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.macro dmbutterfly_h1 inout1, inout2, coef1, coef2, tmp1, tmp2, tmp3, tmp4
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smull \tmp1\().2d, \inout1\().2s, \coef1
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smull2 \tmp2\().2d, \inout1\().4s, \coef1
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smull \tmp3\().2d, \inout1\().2s, \coef2
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smull2 \tmp4\().2d, \inout1\().4s, \coef2
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rshrn \inout1\().2s, \tmp1\().2d, #14
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rshrn2 \inout1\().4s, \tmp2\().2d, #14
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rshrn \inout2\().2s, \tmp3\().2d, #14
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rshrn2 \inout2\().4s, \tmp4\().2d, #14
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.endm
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// Same as dmbutterfly above, but treating the input in inout1 as zero
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.macro dmbutterfly_h2 inout1, inout2, coef1, coef2, tmp1, tmp2, tmp3, tmp4
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smull \tmp1\().2d, \inout2\().2s, \coef2
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smull2 \tmp2\().2d, \inout2\().4s, \coef2
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smull \tmp3\().2d, \inout2\().2s, \coef1
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smull2 \tmp4\().2d, \inout2\().4s, \coef1
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neg \tmp1\().2d, \tmp1\().2d
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neg \tmp2\().2d, \tmp2\().2d
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rshrn \inout2\().2s, \tmp3\().2d, #14
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rshrn2 \inout2\().4s, \tmp4\().2d, #14
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rshrn \inout1\().2s, \tmp1\().2d, #14
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rshrn2 \inout1\().4s, \tmp2\().2d, #14
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.endm
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.macro dsmull_h out1, out2, in, coef
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smull \out1\().2d, \in\().2s, \coef
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smull2 \out2\().2d, \in\().4s, \coef
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.endm
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.macro drshrn_h out, in1, in2, shift
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rshrn \out\().2s, \in1\().2d, \shift
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rshrn2 \out\().4s, \in2\().2d, \shift
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.endm
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// out1 = in1 + in2
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// out2 = in1 - in2
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.macro butterfly_4s out1, out2, in1, in2
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@ -710,6 +758,30 @@ function idct16x16_dc_add_neon
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ret
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endfunc
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.macro idct16_end
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butterfly_4s v18, v7, v4, v7 // v18 = t0a, v7 = t7a
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butterfly_4s v19, v22, v5, v22 // v19 = t1a, v22 = t6
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butterfly_4s v4, v26, v20, v26 // v4 = t2a, v26 = t5
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butterfly_4s v5, v6, v28, v6 // v5 = t3a, v6 = t4
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butterfly_4s v20, v28, v16, v24 // v20 = t8a, v28 = t11a
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butterfly_4s v24, v21, v23, v21 // v24 = t9, v21 = t10
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butterfly_4s v23, v27, v25, v27 // v23 = t14, v27 = t13
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butterfly_4s v25, v29, v29, v17 // v25 = t15a, v29 = t12a
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dmbutterfly0 v8, v9, v27, v21, v8, v9, v16, v17, v30, v31 // v8 = t13a, v9 = t10a
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dmbutterfly0 v28, v27, v29, v28, v21, v29, v16, v17, v30, v31 // v28 = t12, v27 = t11
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butterfly_4s v16, v31, v18, v25 // v16 = out[0], v31 = out[15]
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butterfly_4s v17, v30, v19, v23 // v17 = out[1], v30 = out[14]
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butterfly_4s_r v25, v22, v22, v24 // v25 = out[9], v22 = out[6]
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butterfly_4s v23, v24, v7, v20 // v23 = out[7], v24 = out[8]
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butterfly_4s v18, v29, v4, v8 // v18 = out[2], v29 = out[13]
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butterfly_4s v19, v28, v5, v28 // v19 = out[3], v28 = out[12]
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butterfly_4s v20, v27, v6, v27 // v20 = out[4], v27 = out[11]
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butterfly_4s v21, v26, v26, v9 // v21 = out[5], v26 = out[10]
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ret
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.endm
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function idct16
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dmbutterfly0 v16, v24, v16, v24, v4, v5, v6, v7, v8, v9 // v16 = t0a, v24 = t1a
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dmbutterfly v20, v28, v0.s[2], v0.s[3], v4, v5, v6, v7 // v20 = t2a, v28 = t3a
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@ -732,28 +804,65 @@ function idct16
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dmbutterfly0 v22, v26, v22, v26, v8, v9, v18, v19, v30, v31 // v22 = t6a, v26 = t5a
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dmbutterfly v23, v25, v0.s[2], v0.s[3], v18, v19, v30, v31 // v23 = t9a, v25 = t14a
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dmbutterfly v27, v21, v0.s[2], v0.s[3], v18, v19, v30, v31, neg=1 // v27 = t13a, v21 = t10a
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idct16_end
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endfunc
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butterfly_4s v18, v7, v4, v7 // v18 = t0a, v7 = t7a
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butterfly_4s v19, v22, v5, v22 // v19 = t1a, v22 = t6
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butterfly_4s v4, v26, v20, v26 // v4 = t2a, v26 = t5
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butterfly_4s v5, v6, v28, v6 // v5 = t3a, v6 = t4
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butterfly_4s v20, v28, v16, v24 // v20 = t8a, v28 = t11a
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butterfly_4s v24, v21, v23, v21 // v24 = t9, v21 = t10
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butterfly_4s v23, v27, v25, v27 // v23 = t14, v27 = t13
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butterfly_4s v25, v29, v29, v17 // v25 = t15a, v29 = t12a
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function idct16_half
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dmbutterfly0_h v16, v24, v16, v24, v4, v5, v6, v7, v8, v9 // v16 = t0a, v24 = t1a
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dmbutterfly_h1 v20, v28, v0.s[2], v0.s[3], v4, v5, v6, v7 // v20 = t2a, v28 = t3a
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dmbutterfly_h1 v18, v30, v1.s[0], v1.s[1], v4, v5, v6, v7 // v18 = t4a, v30 = t7a
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dmbutterfly_h2 v26, v22, v1.s[2], v1.s[3], v4, v5, v6, v7 // v26 = t5a, v22 = t6a
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dmbutterfly_h1 v17, v31, v2.s[0], v2.s[1], v4, v5, v6, v7 // v17 = t8a, v31 = t15a
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dmbutterfly_h2 v25, v23, v2.s[2], v2.s[3], v4, v5, v6, v7 // v25 = t9a, v23 = t14a
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dmbutterfly_h1 v21, v27, v3.s[0], v3.s[1], v4, v5, v6, v7 // v21 = t10a, v27 = t13a
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dmbutterfly_h2 v29, v19, v3.s[2], v3.s[3], v4, v5, v6, v7 // v29 = t11a, v19 = t12a
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dmbutterfly0 v8, v9, v27, v21, v8, v9, v16, v17, v30, v31 // v8 = t13a, v9 = t10a
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dmbutterfly0 v28, v27, v29, v28, v21, v29, v16, v17, v30, v31 // v28 = t12, v27 = t11
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butterfly_4s v4, v28, v16, v28 // v4 = t0, v28 = t3
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butterfly_4s v5, v20, v24, v20 // v5 = t1, v20 = t2
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butterfly_4s v6, v26, v18, v26 // v6 = t4, v26 = t5
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butterfly_4s v7, v22, v30, v22 // v7 = t7, v22 = t6
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butterfly_4s v16, v25, v17, v25 // v16 = t8, v25 = t9
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butterfly_4s v24, v21, v29, v21 // v24 = t11, v21 = t10
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butterfly_4s v17, v27, v19, v27 // v17 = t12, v27 = t13
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butterfly_4s v29, v23, v31, v23 // v29 = t15, v23 = t14
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butterfly_4s v16, v31, v18, v25 // v16 = out[0], v31 = out[15]
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butterfly_4s v17, v30, v19, v23 // v17 = out[1], v30 = out[14]
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butterfly_4s_r v25, v22, v22, v24 // v25 = out[9], v22 = out[6]
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butterfly_4s v23, v24, v7, v20 // v23 = out[7], v24 = out[8]
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butterfly_4s v18, v29, v4, v8 // v18 = out[2], v29 = out[13]
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butterfly_4s v19, v28, v5, v28 // v19 = out[3], v28 = out[12]
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butterfly_4s v20, v27, v6, v27 // v20 = out[4], v27 = out[11]
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butterfly_4s v21, v26, v26, v9 // v21 = out[5], v26 = out[10]
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ret
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dmbutterfly0 v22, v26, v22, v26, v8, v9, v18, v19, v30, v31 // v22 = t6a, v26 = t5a
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dmbutterfly v23, v25, v0.s[2], v0.s[3], v18, v19, v30, v31 // v23 = t9a, v25 = t14a
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dmbutterfly v27, v21, v0.s[2], v0.s[3], v18, v19, v30, v31, neg=1 // v27 = t13a, v21 = t10a
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idct16_end
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endfunc
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function idct16_quarter
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dsmull_h v24, v25, v19, v3.s[3]
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dsmull_h v4, v5, v17, v2.s[0]
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dsmull_h v7, v6, v18, v1.s[1]
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dsmull_h v30, v31, v18, v1.s[0]
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neg v24.2d, v24.2d
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neg v25.2d, v25.2d
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dsmull_h v29, v28, v17, v2.s[1]
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dsmull_h v26, v27, v19, v3.s[2]
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dsmull_h v22, v23, v16, v0.s[0]
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drshrn_h v24, v24, v25, #14
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drshrn_h v16, v4, v5, #14
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drshrn_h v7, v7, v6, #14
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drshrn_h v6, v30, v31, #14
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drshrn_h v29, v29, v28, #14
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drshrn_h v17, v26, v27, #14
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drshrn_h v28, v22, v23, #14
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dmbutterfly_l v20, v21, v22, v23, v17, v24, v0.s[2], v0.s[3]
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dmbutterfly_l v18, v19, v30, v31, v29, v16, v0.s[2], v0.s[3]
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neg v22.2d, v22.2d
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neg v23.2d, v23.2d
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drshrn_h v27, v20, v21, #14
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drshrn_h v21, v22, v23, #14
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drshrn_h v23, v18, v19, #14
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drshrn_h v25, v30, v31, #14
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mov v4.16b, v28.16b
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mov v5.16b, v28.16b
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dmbutterfly0 v22, v26, v7, v6, v18, v19, v30, v31
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mov v20.16b, v28.16b
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idct16_end
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endfunc
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function iadst16
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@ -1026,7 +1135,6 @@ function vp9_\txfm1\()_\txfm2\()_16x16_add_16_neon
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.ifnc \txfm1\()_\txfm2,idct_idct
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movrel x11, iadst16_coeffs
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.endif
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movrel x12, min_eob_idct_idct_16, 2
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.ifc \txfm1,idct
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ld1 {v0.8h,v1.8h}, [x10]
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sxtl v2.4s, v1.4h
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@ -1036,6 +1144,15 @@ function vp9_\txfm1\()_\txfm2\()_16x16_add_16_neon
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.endif
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mov x9, #64
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.ifc \txfm1\()_\txfm2,idct_idct
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cmp w3, #10
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b.le idct16x16_quarter_add_16_neon
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cmp w3, #38
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b.le idct16x16_half_add_16_neon
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movrel x12, min_eob_idct_idct_16, 2
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.endif
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.irp i, 0, 4, 8, 12
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add x0, sp, #(\i*64)
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.ifc \txfm1\()_\txfm2,idct_idct
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@ -1110,6 +1227,175 @@ itxfm_func16x16 iadst, idct
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itxfm_func16x16 idct, iadst
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itxfm_func16x16 iadst, iadst
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function idct16_1d_4x16_pass1_quarter_neon
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mov x14, x30
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movi v4.4s, #0
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.irp i, 16, 17, 18, 19
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load_clear \i, x2, x9
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.endr
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bl idct16_quarter
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// Do four 4x4 transposes. Originally, v16-v31 contain the
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// 16 rows. Afterwards, v16-v19, v20-v23, v24-v27 and v28-v31
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// contain the four transposed 4x4 blocks.
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transpose_4x4s v16, v17, v18, v19, v4, v5, v6, v7
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transpose_4x4s v20, v21, v22, v23, v4, v5, v6, v7
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transpose_4x4s v24, v25, v26, v27, v4, v5, v6, v7
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transpose_4x4s v28, v29, v30, v31, v4, v5, v6, v7
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// Store the transposed 4x4 blocks horizontally.
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// The first 4x4 block is kept in registers for the second pass,
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// store the rest in the temp buffer.
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add x0, x0, #16
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st1 {v20.4s}, [x0], #16
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st1 {v24.4s}, [x0], #16
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st1 {v28.4s}, [x0], #16
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add x0, x0, #16
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st1 {v21.4s}, [x0], #16
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st1 {v25.4s}, [x0], #16
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st1 {v29.4s}, [x0], #16
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add x0, x0, #16
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st1 {v22.4s}, [x0], #16
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st1 {v26.4s}, [x0], #16
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st1 {v30.4s}, [x0], #16
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add x0, x0, #16
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st1 {v23.4s}, [x0], #16
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st1 {v27.4s}, [x0], #16
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st1 {v31.4s}, [x0], #16
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br x14
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endfunc
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function idct16_1d_4x16_pass2_quarter_neon
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mov x14, x30
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// Only load the top 4 lines, and only do it for the later slices.
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// For the first slice, d16-d19 is kept in registers from the first pass.
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cbz x3, 1f
|
||||
.irp i, 16, 17, 18, 19
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
1:
|
||||
|
||||
add x3, x0, x1
|
||||
lsl x1, x1, #1
|
||||
bl idct16_quarter
|
||||
|
||||
dup v8.8h, w13
|
||||
load_add_store v16.4s, v17.4s, v18.4s, v19.4s, v20.4s, v21.4s, v22.4s, v23.4s
|
||||
load_add_store v24.4s, v25.4s, v26.4s, v27.4s, v28.4s, v29.4s, v30.4s, v31.4s
|
||||
|
||||
br x14
|
||||
endfunc
|
||||
|
||||
function idct16_1d_4x16_pass1_half_neon
|
||||
mov x14, x30
|
||||
|
||||
movi v4.4s, #0
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
|
||||
bl idct16_half
|
||||
|
||||
// Do four 4x4 transposes. Originally, v16-v31 contain the
|
||||
// 16 rows. Afterwards, v16-v19, v20-v23, v24-v27 and v28-v31
|
||||
// contain the four transposed 4x4 blocks.
|
||||
transpose_4x4s v16, v17, v18, v19, v4, v5, v6, v7
|
||||
transpose_4x4s v20, v21, v22, v23, v4, v5, v6, v7
|
||||
transpose_4x4s v24, v25, v26, v27, v4, v5, v6, v7
|
||||
transpose_4x4s v28, v29, v30, v31, v4, v5, v6, v7
|
||||
|
||||
// Store the transposed 4x4 blocks horizontally.
|
||||
cmp x1, #4
|
||||
b.eq 1f
|
||||
.irp i, 16, 20, 24, 28, 17, 21, 25, 29, 18, 22, 26, 30, 19, 23, 27, 31
|
||||
store \i, x0, #16
|
||||
.endr
|
||||
br x14
|
||||
1:
|
||||
// Special case: For the second input column (r1 == 4),
|
||||
// which would be stored as the second row in the temp buffer,
|
||||
// don't store the first 4x4 block, but keep it in registers
|
||||
// for the first slice of the second pass (where it is the
|
||||
// second 4x4 block).
|
||||
add x0, x0, #16
|
||||
st1 {v20.4s}, [x0], #16
|
||||
st1 {v24.4s}, [x0], #16
|
||||
st1 {v28.4s}, [x0], #16
|
||||
add x0, x0, #16
|
||||
st1 {v21.4s}, [x0], #16
|
||||
st1 {v25.4s}, [x0], #16
|
||||
st1 {v29.4s}, [x0], #16
|
||||
add x0, x0, #16
|
||||
st1 {v22.4s}, [x0], #16
|
||||
st1 {v26.4s}, [x0], #16
|
||||
st1 {v30.4s}, [x0], #16
|
||||
add x0, x0, #16
|
||||
st1 {v23.4s}, [x0], #16
|
||||
st1 {v27.4s}, [x0], #16
|
||||
st1 {v31.4s}, [x0], #16
|
||||
|
||||
mov v20.16b, v16.16b
|
||||
mov v21.16b, v17.16b
|
||||
mov v22.16b, v18.16b
|
||||
mov v23.16b, v19.16b
|
||||
br x14
|
||||
endfunc
|
||||
|
||||
function idct16_1d_4x16_pass2_half_neon
|
||||
mov x14, x30
|
||||
|
||||
.irp i, 16, 17, 18, 19
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
cbz x3, 1f
|
||||
.irp i, 20, 21, 22, 23
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
1:
|
||||
|
||||
add x3, x0, x1
|
||||
lsl x1, x1, #1
|
||||
bl idct16_half
|
||||
|
||||
dup v8.8h, w13
|
||||
load_add_store v16.4s, v17.4s, v18.4s, v19.4s, v20.4s, v21.4s, v22.4s, v23.4s
|
||||
load_add_store v24.4s, v25.4s, v26.4s, v27.4s, v28.4s, v29.4s, v30.4s, v31.4s
|
||||
|
||||
br x14
|
||||
endfunc
|
||||
|
||||
.macro idct16_partial size
|
||||
function idct16x16_\size\()_add_16_neon
|
||||
add x0, sp, #(0*64)
|
||||
mov x1, #0
|
||||
add x2, x6, #(0*4)
|
||||
bl idct16_1d_4x16_pass1_\size\()_neon
|
||||
.ifc \size,half
|
||||
add x0, sp, #(4*64)
|
||||
mov x1, #4
|
||||
add x2, x6, #(4*4)
|
||||
bl idct16_1d_4x16_pass1_\size\()_neon
|
||||
.endif
|
||||
|
||||
.irp i, 0, 4, 8, 12
|
||||
add x0, x4, #(\i*2)
|
||||
mov x1, x5
|
||||
add x2, sp, #(\i*4)
|
||||
mov x3, #\i
|
||||
bl idct16_1d_4x16_pass2_\size\()_neon
|
||||
.endr
|
||||
|
||||
add sp, sp, #1024
|
||||
ldp d8, d9, [sp], 0x10
|
||||
br x15
|
||||
endfunc
|
||||
.endm
|
||||
|
||||
idct16_partial quarter
|
||||
idct16_partial half
|
||||
|
||||
function idct32x32_dc_add_neon
|
||||
movrel x4, idct_coeffs
|
||||
@ -1164,30 +1450,7 @@ function idct32x32_dc_add_neon
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function idct32_odd
|
||||
dmbutterfly v16, v31, v10.s[0], v10.s[1], v4, v5, v6, v7 // v16 = t16a, v31 = t31a
|
||||
dmbutterfly v24, v23, v10.s[2], v10.s[3], v4, v5, v6, v7 // v24 = t17a, v23 = t30a
|
||||
dmbutterfly v20, v27, v11.s[0], v11.s[1], v4, v5, v6, v7 // v20 = t18a, v27 = t29a
|
||||
dmbutterfly v28, v19, v11.s[2], v11.s[3], v4, v5, v6, v7 // v28 = t19a, v19 = t28a
|
||||
dmbutterfly v18, v29, v12.s[0], v12.s[1], v4, v5, v6, v7 // v18 = t20a, v29 = t27a
|
||||
dmbutterfly v26, v21, v12.s[2], v12.s[3], v4, v5, v6, v7 // v26 = t21a, v21 = t26a
|
||||
dmbutterfly v22, v25, v13.s[0], v13.s[1], v4, v5, v6, v7 // v22 = t22a, v25 = t25a
|
||||
dmbutterfly v30, v17, v13.s[2], v13.s[3], v4, v5, v6, v7 // v30 = t23a, v17 = t24a
|
||||
|
||||
butterfly_4s v4, v24, v16, v24 // v4 = t16, v24 = t17
|
||||
butterfly_4s v5, v20, v28, v20 // v5 = t19, v20 = t18
|
||||
butterfly_4s v6, v26, v18, v26 // v6 = t20, v26 = t21
|
||||
butterfly_4s v7, v22, v30, v22 // v7 = t23, v22 = t22
|
||||
butterfly_4s v28, v25, v17, v25 // v28 = t24, v25 = t25
|
||||
butterfly_4s v30, v21, v29, v21 // v30 = t27, v21 = t26
|
||||
butterfly_4s v29, v23, v31, v23 // v29 = t31, v23 = t30
|
||||
butterfly_4s v31, v27, v19, v27 // v31 = t28, v27 = t29
|
||||
|
||||
dmbutterfly v23, v24, v1.s[0], v1.s[1], v16, v17, v18, v19 // v23 = t17a, v24 = t30a
|
||||
dmbutterfly v27, v20, v1.s[0], v1.s[1], v16, v17, v18, v19, neg=1 // v27 = t29a, v20 = t18a
|
||||
dmbutterfly v21, v26, v1.s[2], v1.s[3], v16, v17, v18, v19 // v21 = t21a, v26 = t26a
|
||||
dmbutterfly v25, v22, v1.s[2], v1.s[3], v16, v17, v18, v19, neg=1 // v25 = t25a, v22 = t22a
|
||||
|
||||
.macro idct32_end
|
||||
butterfly_4s v16, v5, v4, v5 // v16 = t16a, v5 = t19a
|
||||
butterfly_4s v17, v20, v23, v20 // v17 = t17, v20 = t18
|
||||
butterfly_4s v18, v6, v7, v6 // v18 = t23a, v6 = t20a
|
||||
@ -1216,8 +1479,105 @@ function idct32_odd
|
||||
dmbutterfly0 v25, v22, v25, v22, v4, v5, v6, v7, v8, v9 // v25 = t25, v22 = t22
|
||||
dmbutterfly0 v24, v23, v24, v23, v4, v5, v6, v7, v8, v9 // v24 = t24a, v23 = t23a
|
||||
ret
|
||||
.endm
|
||||
|
||||
function idct32_odd
|
||||
dmbutterfly v16, v31, v10.s[0], v10.s[1], v4, v5, v6, v7 // v16 = t16a, v31 = t31a
|
||||
dmbutterfly v24, v23, v10.s[2], v10.s[3], v4, v5, v6, v7 // v24 = t17a, v23 = t30a
|
||||
dmbutterfly v20, v27, v11.s[0], v11.s[1], v4, v5, v6, v7 // v20 = t18a, v27 = t29a
|
||||
dmbutterfly v28, v19, v11.s[2], v11.s[3], v4, v5, v6, v7 // v28 = t19a, v19 = t28a
|
||||
dmbutterfly v18, v29, v12.s[0], v12.s[1], v4, v5, v6, v7 // v18 = t20a, v29 = t27a
|
||||
dmbutterfly v26, v21, v12.s[2], v12.s[3], v4, v5, v6, v7 // v26 = t21a, v21 = t26a
|
||||
dmbutterfly v22, v25, v13.s[0], v13.s[1], v4, v5, v6, v7 // v22 = t22a, v25 = t25a
|
||||
dmbutterfly v30, v17, v13.s[2], v13.s[3], v4, v5, v6, v7 // v30 = t23a, v17 = t24a
|
||||
|
||||
butterfly_4s v4, v24, v16, v24 // v4 = t16, v24 = t17
|
||||
butterfly_4s v5, v20, v28, v20 // v5 = t19, v20 = t18
|
||||
butterfly_4s v6, v26, v18, v26 // v6 = t20, v26 = t21
|
||||
butterfly_4s v7, v22, v30, v22 // v7 = t23, v22 = t22
|
||||
butterfly_4s v28, v25, v17, v25 // v28 = t24, v25 = t25
|
||||
butterfly_4s v30, v21, v29, v21 // v30 = t27, v21 = t26
|
||||
butterfly_4s v29, v23, v31, v23 // v29 = t31, v23 = t30
|
||||
butterfly_4s v31, v27, v19, v27 // v31 = t28, v27 = t29
|
||||
|
||||
dmbutterfly v23, v24, v1.s[0], v1.s[1], v16, v17, v18, v19 // v23 = t17a, v24 = t30a
|
||||
dmbutterfly v27, v20, v1.s[0], v1.s[1], v16, v17, v18, v19, neg=1 // v27 = t29a, v20 = t18a
|
||||
dmbutterfly v21, v26, v1.s[2], v1.s[3], v16, v17, v18, v19 // v21 = t21a, v26 = t26a
|
||||
dmbutterfly v25, v22, v1.s[2], v1.s[3], v16, v17, v18, v19, neg=1 // v25 = t25a, v22 = t22a
|
||||
idct32_end
|
||||
endfunc
|
||||
|
||||
function idct32_odd_half
|
||||
dmbutterfly_h1 v16, v31, v10.s[0], v10.s[1], v4, v5, v6, v7 // v16 = t16a, v31 = t31a
|
||||
dmbutterfly_h2 v24, v23, v10.s[2], v10.s[3], v4, v5, v6, v7 // v24 = t17a, v23 = t30a
|
||||
dmbutterfly_h1 v20, v27, v11.s[0], v11.s[1], v4, v5, v6, v7 // v20 = t18a, v27 = t29a
|
||||
dmbutterfly_h2 v28, v19, v11.s[2], v11.s[3], v4, v5, v6, v7 // v28 = t19a, v19 = t28a
|
||||
dmbutterfly_h1 v18, v29, v12.s[0], v12.s[1], v4, v5, v6, v7 // v18 = t20a, v29 = t27a
|
||||
dmbutterfly_h2 v26, v21, v12.s[2], v12.s[3], v4, v5, v6, v7 // v26 = t21a, v21 = t26a
|
||||
dmbutterfly_h1 v22, v25, v13.s[0], v13.s[1], v4, v5, v6, v7 // v22 = t22a, v25 = t25a
|
||||
dmbutterfly_h2 v30, v17, v13.s[2], v13.s[3], v4, v5, v6, v7 // v30 = t23a, v17 = t24a
|
||||
|
||||
butterfly_4s v4, v24, v16, v24 // v4 = t16, v24 = t17
|
||||
butterfly_4s v5, v20, v28, v20 // v5 = t19, v20 = t18
|
||||
butterfly_4s v6, v26, v18, v26 // v6 = t20, v26 = t21
|
||||
butterfly_4s v7, v22, v30, v22 // v7 = t23, v22 = t22
|
||||
butterfly_4s v28, v25, v17, v25 // v28 = t24, v25 = t25
|
||||
butterfly_4s v30, v21, v29, v21 // v30 = t27, v21 = t26
|
||||
butterfly_4s v29, v23, v31, v23 // v29 = t31, v23 = t30
|
||||
butterfly_4s v31, v27, v19, v27 // v31 = t28, v27 = t29
|
||||
|
||||
dmbutterfly v23, v24, v1.s[0], v1.s[1], v16, v17, v18, v19 // v23 = t17a, v24 = t30a
|
||||
dmbutterfly v27, v20, v1.s[0], v1.s[1], v16, v17, v18, v19, neg=1 // v27 = t29a, v20 = t18a
|
||||
dmbutterfly v21, v26, v1.s[2], v1.s[3], v16, v17, v18, v19 // v21 = t21a, v26 = t26a
|
||||
dmbutterfly v25, v22, v1.s[2], v1.s[3], v16, v17, v18, v19, neg=1 // v25 = t25a, v22 = t22a
|
||||
idct32_end
|
||||
endfunc
|
||||
|
||||
function idct32_odd_quarter
|
||||
dsmull_h v4, v5, v16, v10.s[0]
|
||||
dsmull_h v28, v29, v19, v11.s[3]
|
||||
dsmull_h v30, v31, v16, v10.s[1]
|
||||
dsmull_h v22, v23, v17, v13.s[2]
|
||||
dsmull_h v7, v6, v17, v13.s[3]
|
||||
dsmull_h v26, v27, v19, v11.s[2]
|
||||
dsmull_h v20, v21, v18, v12.s[0]
|
||||
dsmull_h v24, v25, v18, v12.s[1]
|
||||
|
||||
neg v28.2d, v28.2d
|
||||
neg v29.2d, v29.2d
|
||||
neg v7.2d, v7.2d
|
||||
neg v6.2d, v6.2d
|
||||
|
||||
drshrn_h v4, v4, v5, #14
|
||||
drshrn_h v5, v28, v29, #14
|
||||
drshrn_h v29, v30, v31, #14
|
||||
drshrn_h v28, v22, v23, #14
|
||||
drshrn_h v7, v7, v6, #14
|
||||
drshrn_h v31, v26, v27, #14
|
||||
drshrn_h v6, v20, v21, #14
|
||||
drshrn_h v30, v24, v25, #14
|
||||
|
||||
dmbutterfly_l v16, v17, v18, v19, v29, v4, v1.s[0], v1.s[1]
|
||||
dmbutterfly_l v27, v26, v20, v21, v31, v5, v1.s[0], v1.s[1]
|
||||
drshrn_h v23, v16, v17, #14
|
||||
drshrn_h v24, v18, v19, #14
|
||||
neg v20.2d, v20.2d
|
||||
neg v21.2d, v21.2d
|
||||
drshrn_h v27, v27, v26, #14
|
||||
drshrn_h v20, v20, v21, #14
|
||||
dmbutterfly_l v16, v17, v18, v19, v30, v6, v1.s[2], v1.s[3]
|
||||
drshrn_h v21, v16, v17, #14
|
||||
drshrn_h v26, v18, v19, #14
|
||||
dmbutterfly_l v16, v17, v18, v19, v28, v7, v1.s[2], v1.s[3]
|
||||
drshrn_h v25, v16, v17, #14
|
||||
neg v18.2d, v18.2d
|
||||
neg v19.2d, v19.2d
|
||||
drshrn_h v22, v18, v19, #14
|
||||
|
||||
idct32_end
|
||||
endfunc
|
||||
|
||||
.macro idct32_funcs suffix
|
||||
// Do an 32-point IDCT of a 4x32 slice out of a 32x32 matrix.
|
||||
// The 32-point IDCT can be decomposed into two 16-point IDCTs;
|
||||
// a normal IDCT16 with every other input component (the even ones, with
|
||||
@ -1227,18 +1587,29 @@ endfunc
|
||||
// x1 = unused
|
||||
// x2 = src
|
||||
// x9 = double input stride
|
||||
function idct32_1d_4x32_pass1_neon
|
||||
function idct32_1d_4x32_pass1\suffix\()_neon
|
||||
mov x14, x30
|
||||
|
||||
movi v4.4s, #0
|
||||
|
||||
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
|
||||
.ifb \suffix
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
||||
ld1 {v\i\().4s}, [x2]
|
||||
st1 {v4.4s}, [x2], x9
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
.ifc \suffix,_quarter
|
||||
.irp i, 16, 17, 18, 19
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
.ifc \suffix,_half
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
|
||||
bl idct16
|
||||
bl idct16\suffix
|
||||
|
||||
// Do four 4x4 transposes. Originally, v16-v31 contain the
|
||||
// 16 rows. Afterwards, v16-v19, v20-v23, v24-v27 and v28-v31
|
||||
@ -1279,17 +1650,36 @@ function idct32_1d_4x32_pass1_neon
|
||||
|
||||
// Move x2 back to the start of the input, and move
|
||||
// to the first odd row
|
||||
.ifb \suffix
|
||||
sub x2, x2, x9, lsl #4
|
||||
.endif
|
||||
.ifc \suffix,_quarter
|
||||
sub x2, x2, x9, lsl #2
|
||||
.endif
|
||||
.ifc \suffix,_half
|
||||
sub x2, x2, x9, lsl #3
|
||||
.endif
|
||||
add x2, x2, #128
|
||||
|
||||
movi v4.4s, #0
|
||||
// v16 = IN(1), v17 = IN(3) ... v31 = IN(31)
|
||||
.ifb \suffix
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
||||
ld1 {v\i\().4s}, [x2]
|
||||
st1 {v4.4s}, [x2], x9
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
.ifc \suffix,_quarter
|
||||
.irp i, 16, 17, 18, 19
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
.ifc \suffix,_half
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
||||
load_clear \i, x2, x9
|
||||
.endr
|
||||
.endif
|
||||
|
||||
bl idct32_odd
|
||||
bl idct32_odd\suffix
|
||||
|
||||
transpose_4x4s v31, v30, v29, v28, v4, v5, v6, v7
|
||||
transpose_4x4s v27, v26, v25, v24, v4, v5, v6, v7
|
||||
@ -1350,32 +1740,60 @@ endfunc
|
||||
// x2 = src (temp buffer)
|
||||
// x7 = negative double temp buffer stride
|
||||
// x9 = double temp buffer stride
|
||||
function idct32_1d_4x32_pass2_neon
|
||||
function idct32_1d_4x32_pass2\suffix\()_neon
|
||||
mov x14, x30
|
||||
|
||||
// v16 = IN(0), v17 = IN(2) ... v31 = IN(30)
|
||||
.ifb \suffix
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
||||
ld1 {v\i\().4s}, [x2], x9
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #4
|
||||
.endif
|
||||
.ifc \suffix,_quarter
|
||||
.irp i, 16, 17, 18, 19
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #2
|
||||
.endif
|
||||
.ifc \suffix,_half
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #3
|
||||
.endif
|
||||
|
||||
bl idct16
|
||||
bl idct16\suffix
|
||||
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
||||
st1 {v\i\().4s}, [x2], x9
|
||||
store \i, x2, x9
|
||||
.endr
|
||||
|
||||
sub x2, x2, x9, lsl #4
|
||||
add x2, x2, #128
|
||||
|
||||
// v16 = IN(1), v17 = IN(3) ... v31 = IN(31)
|
||||
.ifb \suffix
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
|
||||
ld1 {v\i\().4s}, [x2], x9
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #4
|
||||
.endif
|
||||
.ifc \suffix,_quarter
|
||||
.irp i, 16, 17, 18, 19
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #2
|
||||
.endif
|
||||
.ifc \suffix,_half
|
||||
.irp i, 16, 17, 18, 19, 20, 21, 22, 23
|
||||
load \i, x2, x9
|
||||
.endr
|
||||
sub x2, x2, x9, lsl #3
|
||||
.endif
|
||||
sub x2, x2, #128
|
||||
|
||||
bl idct32_odd
|
||||
bl idct32_odd\suffix
|
||||
|
||||
.macro load_acc_store a, b, c, d, neg=0
|
||||
.if \neg == 0
|
||||
@ -1433,6 +1851,11 @@ function idct32_1d_4x32_pass2_neon
|
||||
.purgem load_acc_store
|
||||
br x14
|
||||
endfunc
|
||||
.endm
|
||||
|
||||
idct32_funcs
|
||||
idct32_funcs _quarter
|
||||
idct32_funcs _half
|
||||
|
||||
const min_eob_idct_idct_32, align=4
|
||||
.short 0, 9, 34, 70, 135, 240, 336, 448
|
||||
@ -1443,7 +1866,6 @@ function vp9_idct_idct_32x32_add_16_neon
|
||||
b.eq idct32x32_dc_add_neon
|
||||
|
||||
movrel x10, idct_coeffs
|
||||
movrel x12, min_eob_idct_idct_32, 2
|
||||
|
||||
mov x15, x30
|
||||
stp d8, d9, [sp, #-0x10]!
|
||||
@ -1474,6 +1896,13 @@ function vp9_idct_idct_32x32_add_16_neon
|
||||
|
||||
dup v15.8h, w13
|
||||
|
||||
cmp w3, #34
|
||||
b.le idct32x32_quarter_add_16_neon
|
||||
cmp w3, #135
|
||||
b.le idct32x32_half_add_16_neon
|
||||
|
||||
movrel x12, min_eob_idct_idct_32, 2
|
||||
|
||||
.irp i, 0, 4, 8, 12, 16, 20, 24, 28
|
||||
add x0, sp, #(\i*128)
|
||||
.if \i > 0
|
||||
@ -1526,3 +1955,63 @@ function ff_vp9_idct_idct_32x32_add_12_neon, export=1
|
||||
mov x13, #0x0fff
|
||||
b vp9_idct_idct_32x32_add_16_neon
|
||||
endfunc
|
||||
|
||||
.macro idct32_partial size
|
||||
function idct32x32_\size\()_add_16_neon
|
||||
.irp i, 0, 4
|
||||
add x0, sp, #(\i*128)
|
||||
.ifc \size,quarter
|
||||
.if \i == 4
|
||||
cmp w3, #9
|
||||
b.le 1f
|
||||
.endif
|
||||
.endif
|
||||
add x2, x6, #(\i*4)
|
||||
bl idct32_1d_4x32_pass1_\size\()_neon
|
||||
.endr
|
||||
|
||||
.ifc \size,half
|
||||
.irp i, 8, 12
|
||||
add x0, sp, #(\i*128)
|
||||
.if \i == 12
|
||||
cmp w3, #70
|
||||
b.le 1f
|
||||
.endif
|
||||
add x2, x6, #(\i*4)
|
||||
bl idct32_1d_4x32_pass1_\size\()_neon
|
||||
.endr
|
||||
.endif
|
||||
b 3f
|
||||
|
||||
1:
|
||||
// Write zeros to the temp buffer for pass 2
|
||||
movi v16.4s, #0
|
||||
movi v17.4s, #0
|
||||
movi v18.4s, #0
|
||||
movi v19.4s, #0
|
||||
|
||||
.rept 4
|
||||
st1 {v16.4s-v19.4s}, [x0], #64
|
||||
st1 {v16.4s-v19.4s}, [x0], #64
|
||||
.endr
|
||||
|
||||
3:
|
||||
.irp i, 0, 4, 8, 12, 16, 20, 24, 28
|
||||
add x0, x4, #(\i*2)
|
||||
mov x1, x5
|
||||
add x2, sp, #(\i*4)
|
||||
bl idct32_1d_4x32_pass2_\size\()_neon
|
||||
.endr
|
||||
|
||||
add sp, sp, #4096
|
||||
ldp d14, d15, [sp], 0x10
|
||||
ldp d12, d13, [sp], 0x10
|
||||
ldp d10, d11, [sp], 0x10
|
||||
ldp d8, d9, [sp], 0x10
|
||||
|
||||
br x15
|
||||
endfunc
|
||||
.endm
|
||||
|
||||
idct32_partial quarter
|
||||
idct32_partial half
|
||||
|
||||
Loading…
Reference in New Issue
Block a user