diff options
author | Tim Rowley <[email protected]> | 2017-06-06 15:34:54 -0500 |
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committer | Tim Rowley <[email protected]> | 2017-06-16 16:20:16 -0500 |
commit | 8e5d11cd7bef52716d5c33610f506e55cb70a1ee (patch) | |
tree | e673340397e930896a17ab9c77a9adf17a4c7fbc /src/gallium/drivers/swr | |
parent | 01eca81cd4707ce574796939fb7df9c7ac000564 (diff) |
swr/rast: SIMD16 FE - improve calcDeterminantIntVertical
Reviewed-by: Bruce Cherniak <[email protected]>
Diffstat (limited to 'src/gallium/drivers/swr')
-rw-r--r-- | src/gallium/drivers/swr/rasterizer/core/frontend.h | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/src/gallium/drivers/swr/rasterizer/core/frontend.h b/src/gallium/drivers/swr/rasterizer/core/frontend.h index a2ce3a12041..0a2a23d9e0f 100644 --- a/src/gallium/drivers/swr/rasterizer/core/frontend.h +++ b/src/gallium/drivers/swr/rasterizer/core/frontend.h @@ -189,28 +189,36 @@ void calcDeterminantIntVertical(const simd16scalari vA[3], const simd16scalari v // refer to calcDeterminantInt comment for calculation explanation // A1*B2 - simd16scalari vA1_lo = _simd16_cvtepu32_epi64(_simd16_extract_si(vA[1], 0));// 0 1 2 3 4 5 6 7 (64b), upper 32b zero, lower 32b used - simd16scalari vA1_hi = _simd16_cvtepu32_epi64(_simd16_extract_si(vA[1], 1));// 8 9 A B C D E F (64b), upper 32b zero, lower 32b used + simd16scalari vA1_lo = _simd16_unpacklo_epi32(vA[1], vA[1]); // X 0 X 1 X 4 X 5 X 8 X 9 X C X D (32b) + simd16scalari vA1_hi = _simd16_unpackhi_epi32(vA[1], vA[1]); // X 2 X 3 X 6 X 7 X A X B X E X F - simd16scalari vB2_lo = _simd16_cvtepu32_epi64(_simd16_extract_si(vB[2], 0));// 0 1 2 3 4 5 6 7 (64b), upper 32b zero, lower 32b used - simd16scalari vB2_hi = _simd16_cvtepu32_epi64(_simd16_extract_si(vB[2], 1));// 8 9 A B C D E F (64b), upper 32b zero, lower 32b used + simd16scalari vB2_lo = _simd16_unpacklo_epi32(vB[2], vB[2]); + simd16scalari vB2_hi = _simd16_unpackhi_epi32(vB[2], vB[2]); - simd16scalari vA1B2_lo = _simd16_mul_epi32(vA1_lo, vB2_lo); // 0 1 2 3 4 5 6 7 (64b) - simd16scalari vA1B2_hi = _simd16_mul_epi32(vA1_hi, vB2_hi); // 8 9 A B C D E F (64b) + simd16scalari vA1B2_lo = _simd16_mul_epi32(vA1_lo, vB2_lo); // 0 1 4 5 8 9 C D (64b) + simd16scalari vA1B2_hi = _simd16_mul_epi32(vA1_hi, vB2_hi); // 2 3 6 7 A B E F // B1*A2 - simd16scalari vA2_lo = _simd16_cvtepu32_epi64(_simd16_extract_si(vA[2], 0)); - simd16scalari vA2_hi = _simd16_cvtepu32_epi64(_simd16_extract_si(vA[2], 1)); + simd16scalari vA2_lo = _simd16_unpacklo_epi32(vA[2], vA[2]); + simd16scalari vA2_hi = _simd16_unpackhi_epi32(vA[2], vA[2]); - simd16scalari vB1_lo = _simd16_cvtepu32_epi64(_simd16_extract_si(vB[1], 0)); - simd16scalari vB1_hi = _simd16_cvtepu32_epi64(_simd16_extract_si(vB[1], 1)); + simd16scalari vB1_lo = _simd16_unpacklo_epi32(vB[1], vB[1]); + simd16scalari vB1_hi = _simd16_unpackhi_epi32(vB[1], vB[1]); simd16scalari vA2B1_lo = _simd16_mul_epi32(vA2_lo, vB1_lo); simd16scalari vA2B1_hi = _simd16_mul_epi32(vA2_hi, vB1_hi); // A1*B2 - A2*B1 - pvDet[0] = _simd16_sub_epi64(vA1B2_lo, vA2B1_lo); // 0 1 2 3 4 5 6 7 (64b) - pvDet[1] = _simd16_sub_epi64(vA1B2_hi, vA2B1_hi); // 8 9 A B C D E F (64b) + simd16scalari difflo = _simd16_sub_epi64(vA1B2_lo, vA2B1_lo); // 0 1 4 5 8 9 C D (64b) + simd16scalari diffhi = _simd16_sub_epi64(vA1B2_hi, vA2B1_hi); // 2 3 6 7 A B E F + + // (1, 0, 1, 0) = 01 00 01 00 = 0x44, (3, 2, 3, 2) = 11 10 11 10 = 0xEE + simd16scalari templo = _simd16_permute2f128_si(difflo, diffhi, 0x44); // 0 1 4 5 2 3 6 7 (64b) + simd16scalari temphi = _simd16_permute2f128_si(difflo, diffhi, 0xEE); // 8 9 C D A B E F + + // (3, 1, 2, 0) = 11 01 10 00 = 0xD8 + pvDet[0] = _simd16_permute2f128_si(templo, templo, 0xD8); // 0 1 2 3 4 5 6 7 (64b) + pvDet[1] = _simd16_permute2f128_si(temphi, temphi, 0xD8); // 8 9 A B C D E F } #endif |