Update vpx_highbd_idct4x4_16_add_sse2()
BUG=webm:1412 Change-Id: I26e4b34ae9bc1ae80c24f56d740d737a95f1ab84
This commit is contained in:
Linfeng Zhang
parent
48c0e13286
commit
45048dc9dc
@ -14,117 +14,227 @@
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#include "vpx_dsp/x86/transpose_sse2.h"
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#include "vpx_dsp/x86/txfm_common_sse2.h"
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static INLINE __m128i dct_const_round_shift_4_sse2(const __m128i in0,
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const __m128i in1) {
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const __m128i t0 = _mm_unpacklo_epi32(in0, in1); // 0, 1
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const __m128i t1 = _mm_unpackhi_epi32(in0, in1); // 2, 3
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const __m128i t2 = _mm_unpacklo_epi64(t0, t1); // 0, 1, 2, 3
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return dct_const_round_shift_sse2(t2);
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}
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static INLINE __m128i wraplow_16bit_sse2(const __m128i in0, const __m128i in1,
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const __m128i rounding) {
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__m128i temp[2];
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temp[0] = _mm_add_epi32(in0, rounding);
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temp[1] = _mm_add_epi32(in1, rounding);
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temp[0] = _mm_srai_epi32(temp[0], 4);
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temp[1] = _mm_srai_epi32(temp[1], 4);
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return _mm_packs_epi32(temp[0], temp[1]);
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}
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static INLINE void highbd_idct4_small_sse2(__m128i *const io) {
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const __m128i cospi_p16_p16 = _mm_setr_epi32(cospi_16_64, 0, cospi_16_64, 0);
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const __m128i cospi_p08_p08 = _mm_setr_epi32(cospi_8_64, 0, cospi_8_64, 0);
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const __m128i cospi_p24_p24 = _mm_setr_epi32(cospi_24_64, 0, cospi_24_64, 0);
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__m128i temp1[4], temp2[4], step[4];
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transpose_32bit_4x4(&io[0], &io[1], &io[2], &io[3]);
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// Note: There is no 32-bit signed multiply SIMD instruction in SSE2.
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// _mm_mul_epu32() is used which can only guarantee the lower 32-bit
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// (signed) result is meaningful, which is enough in this function.
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// stage 1
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temp1[0] = _mm_add_epi32(io[0], io[2]); // input[0] + input[2]
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temp2[0] = _mm_sub_epi32(io[0], io[2]); // input[0] - input[2]
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temp1[1] = _mm_srli_si128(temp1[0], 4); // 1, 3
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temp2[1] = _mm_srli_si128(temp2[0], 4); // 1, 3
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temp1[0] = _mm_mul_epu32(temp1[0], cospi_p16_p16); // ([0] + [2])*cospi_16_64
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temp1[1] = _mm_mul_epu32(temp1[1], cospi_p16_p16); // ([0] + [2])*cospi_16_64
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temp2[0] = _mm_mul_epu32(temp2[0], cospi_p16_p16); // ([0] - [2])*cospi_16_64
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temp2[1] = _mm_mul_epu32(temp2[1], cospi_p16_p16); // ([0] - [2])*cospi_16_64
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step[0] = dct_const_round_shift_4_sse2(temp1[0], temp1[1]);
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step[1] = dct_const_round_shift_4_sse2(temp2[0], temp2[1]);
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temp1[3] = _mm_srli_si128(io[1], 4);
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temp2[3] = _mm_srli_si128(io[3], 4);
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temp1[0] = _mm_mul_epu32(io[1], cospi_p24_p24); // input[1] * cospi_24_64
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temp1[1] = _mm_mul_epu32(temp1[3], cospi_p24_p24); // input[1] * cospi_24_64
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temp2[0] = _mm_mul_epu32(io[1], cospi_p08_p08); // input[1] * cospi_8_64
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temp2[1] = _mm_mul_epu32(temp1[3], cospi_p08_p08); // input[1] * cospi_8_64
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temp1[2] = _mm_mul_epu32(io[3], cospi_p08_p08); // input[3] * cospi_8_64
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temp1[3] = _mm_mul_epu32(temp2[3], cospi_p08_p08); // input[3] * cospi_8_64
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temp2[2] = _mm_mul_epu32(io[3], cospi_p24_p24); // input[3] * cospi_24_64
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temp2[3] = _mm_mul_epu32(temp2[3], cospi_p24_p24); // input[3] * cospi_24_64
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temp1[0] = _mm_sub_epi64(temp1[0], temp1[2]); // [1]*cospi_24 - [3]*cospi_8
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temp1[1] = _mm_sub_epi64(temp1[1], temp1[3]); // [1]*cospi_24 - [3]*cospi_8
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temp2[0] = _mm_add_epi64(temp2[0], temp2[2]); // [1]*cospi_8 + [3]*cospi_24
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temp2[1] = _mm_add_epi64(temp2[1], temp2[3]); // [1]*cospi_8 + [3]*cospi_24
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step[2] = dct_const_round_shift_4_sse2(temp1[0], temp1[1]);
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step[3] = dct_const_round_shift_4_sse2(temp2[0], temp2[1]);
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// stage 2
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io[0] = _mm_add_epi32(step[0], step[3]); // step[0] + step[3]
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io[1] = _mm_add_epi32(step[1], step[2]); // step[1] + step[2]
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io[2] = _mm_sub_epi32(step[1], step[2]); // step[1] - step[2]
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io[3] = _mm_sub_epi32(step[0], step[3]); // step[0] - step[3]
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}
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static INLINE void abs_extend_64bit_sse2(const __m128i in,
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__m128i *const out /*out[2]*/,
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__m128i *const sign /*sign[2]*/) {
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sign[0] = _mm_srai_epi32(in, 31);
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out[0] = _mm_xor_si128(in, sign[0]);
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out[0] = _mm_sub_epi32(out[0], sign[0]);
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sign[1] = _mm_unpackhi_epi32(sign[0], sign[0]); // 64-bit sign of 2, 3
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sign[0] = _mm_unpacklo_epi32(sign[0], sign[0]); // 64-bit sign of 0, 1
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out[1] = _mm_unpackhi_epi32(out[0], out[0]); // 2, 3
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out[0] = _mm_unpacklo_epi32(out[0], out[0]); // 0, 1
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}
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static INLINE __m128i multiply_apply_sign_sse2(const __m128i in,
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const __m128i sign,
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const __m128i cospi) {
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__m128i out = _mm_mul_epu32(in, cospi);
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out = _mm_xor_si128(out, sign);
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return _mm_sub_epi64(out, sign);
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}
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static INLINE __m128i dct_const_round_shift_64bit_sse2(const __m128i in) {
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const __m128i t = _mm_add_epi64(
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in,
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_mm_setr_epi32(DCT_CONST_ROUNDING << 2, 0, DCT_CONST_ROUNDING << 2, 0));
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return _mm_srli_si128(t, 2);
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}
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static INLINE __m128i pack_4_sse2(const __m128i in0, const __m128i in1) {
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const __m128i t0 = _mm_unpacklo_epi32(in0, in1); // 0, 2
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const __m128i t1 = _mm_unpackhi_epi32(in0, in1); // 1, 3
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return _mm_unpacklo_epi32(t0, t1); // 0, 1, 2, 3
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}
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static INLINE void highbd_idct4_large_sse2(__m128i *const io) {
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const __m128i cospi_p16_p16 =
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_mm_setr_epi32(cospi_16_64 << 2, 0, cospi_16_64 << 2, 0);
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const __m128i cospi_p08_p08 =
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_mm_setr_epi32(cospi_8_64 << 2, 0, cospi_8_64 << 2, 0);
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const __m128i cospi_p24_p24 =
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_mm_setr_epi32(cospi_24_64 << 2, 0, cospi_24_64 << 2, 0);
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__m128i temp1[4], temp2[4], step[4], sign1[4], sign2[4];
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transpose_32bit_4x4(&io[0], &io[1], &io[2], &io[3]);
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// stage 1
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temp1[0] = _mm_add_epi32(io[0], io[2]); // input[0] + input[2]
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temp2[0] = _mm_sub_epi32(io[0], io[2]); // input[0] - input[2]
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abs_extend_64bit_sse2(temp1[0], temp1, sign1);
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abs_extend_64bit_sse2(temp2[0], temp2, sign2);
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temp1[0] = multiply_apply_sign_sse2(temp1[0], sign1[0], cospi_p16_p16);
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temp1[1] = multiply_apply_sign_sse2(temp1[1], sign1[1], cospi_p16_p16);
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temp2[0] = multiply_apply_sign_sse2(temp2[0], sign2[0], cospi_p16_p16);
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temp2[1] = multiply_apply_sign_sse2(temp2[1], sign2[1], cospi_p16_p16);
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temp1[0] = dct_const_round_shift_64bit_sse2(temp1[0]);
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temp1[1] = dct_const_round_shift_64bit_sse2(temp1[1]);
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temp2[0] = dct_const_round_shift_64bit_sse2(temp2[0]);
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temp2[1] = dct_const_round_shift_64bit_sse2(temp2[1]);
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step[0] = pack_4_sse2(temp1[0], temp1[1]);
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step[1] = pack_4_sse2(temp2[0], temp2[1]);
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abs_extend_64bit_sse2(io[1], temp1, sign1);
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abs_extend_64bit_sse2(io[3], temp2, sign2);
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temp1[2] = multiply_apply_sign_sse2(temp1[0], sign1[0], cospi_p08_p08);
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temp1[3] = multiply_apply_sign_sse2(temp1[1], sign1[1], cospi_p08_p08);
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temp1[0] = multiply_apply_sign_sse2(temp1[0], sign1[0], cospi_p24_p24);
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temp1[1] = multiply_apply_sign_sse2(temp1[1], sign1[1], cospi_p24_p24);
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temp2[2] = multiply_apply_sign_sse2(temp2[0], sign2[0], cospi_p24_p24);
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temp2[3] = multiply_apply_sign_sse2(temp2[1], sign2[1], cospi_p24_p24);
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temp2[0] = multiply_apply_sign_sse2(temp2[0], sign2[0], cospi_p08_p08);
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temp2[1] = multiply_apply_sign_sse2(temp2[1], sign2[1], cospi_p08_p08);
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temp1[0] = _mm_sub_epi64(temp1[0], temp2[0]); // [1]*cospi_24 - [3]*cospi_8
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temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]); // [1]*cospi_24 - [3]*cospi_8
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temp2[0] = _mm_add_epi64(temp1[2], temp2[2]); // [1]*cospi_8 + [3]*cospi_24
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temp2[1] = _mm_add_epi64(temp1[3], temp2[3]); // [1]*cospi_8 + [3]*cospi_24
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temp1[0] = dct_const_round_shift_64bit_sse2(temp1[0]);
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temp1[1] = dct_const_round_shift_64bit_sse2(temp1[1]);
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temp2[0] = dct_const_round_shift_64bit_sse2(temp2[0]);
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temp2[1] = dct_const_round_shift_64bit_sse2(temp2[1]);
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step[2] = pack_4_sse2(temp1[0], temp1[1]);
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step[3] = pack_4_sse2(temp2[0], temp2[1]);
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// stage 2
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io[0] = _mm_add_epi32(step[0], step[3]); // step[0] + step[3]
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io[1] = _mm_add_epi32(step[1], step[2]); // step[1] + step[2]
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io[2] = _mm_sub_epi32(step[1], step[2]); // step[1] - step[2]
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io[3] = _mm_sub_epi32(step[0], step[3]); // step[0] - step[3]
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}
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void vpx_highbd_idct4x4_16_add_sse2(const tran_low_t *input, uint16_t *dest,
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int stride, int bd) {
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tran_low_t out[4 * 4];
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tran_low_t *outptr = out;
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int i, j;
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__m128i inptr[4];
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__m128i sign_bits[2];
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__m128i temp_mm, min_input, max_input;
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int test;
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int optimised_cols = 0;
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const __m128i zero = _mm_set1_epi16(0);
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const __m128i eight = _mm_set1_epi16(8);
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const __m128i max = _mm_set1_epi16(12043);
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const __m128i min = _mm_set1_epi16(-12043);
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// Load input into __m128i
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inptr[0] = _mm_loadu_si128((const __m128i *)input);
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inptr[1] = _mm_loadu_si128((const __m128i *)(input + 4));
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inptr[2] = _mm_loadu_si128((const __m128i *)(input + 8));
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inptr[3] = _mm_loadu_si128((const __m128i *)(input + 12));
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int16_t max = 0, min = 0;
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__m128i io[4], io_short[2];
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// Pack to 16 bits
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inptr[0] = _mm_packs_epi32(inptr[0], inptr[1]);
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inptr[1] = _mm_packs_epi32(inptr[2], inptr[3]);
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io[0] = _mm_load_si128((const __m128i *)(input + 0));
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io[1] = _mm_load_si128((const __m128i *)(input + 4));
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io[2] = _mm_load_si128((const __m128i *)(input + 8));
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io[3] = _mm_load_si128((const __m128i *)(input + 12));
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max_input = _mm_max_epi16(inptr[0], inptr[1]);
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min_input = _mm_min_epi16(inptr[0], inptr[1]);
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max_input = _mm_cmpgt_epi16(max_input, max);
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min_input = _mm_cmplt_epi16(min_input, min);
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temp_mm = _mm_or_si128(max_input, min_input);
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test = _mm_movemask_epi8(temp_mm);
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io_short[0] = _mm_packs_epi32(io[0], io[1]);
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io_short[1] = _mm_packs_epi32(io[2], io[3]);
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if (!test) {
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// Do the row transform
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idct4_sse2(inptr);
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if (bd != 8) {
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__m128i max_input, min_input;
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// Check the min & max values
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max_input = _mm_max_epi16(inptr[0], inptr[1]);
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min_input = _mm_min_epi16(inptr[0], inptr[1]);
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max_input = _mm_cmpgt_epi16(max_input, max);
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min_input = _mm_cmplt_epi16(min_input, min);
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temp_mm = _mm_or_si128(max_input, min_input);
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test = _mm_movemask_epi8(temp_mm);
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if (test) {
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transpose_16bit_4x4(inptr);
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sign_bits[0] = _mm_cmplt_epi16(inptr[0], zero);
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sign_bits[1] = _mm_cmplt_epi16(inptr[1], zero);
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inptr[3] = _mm_unpackhi_epi16(inptr[1], sign_bits[1]);
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inptr[2] = _mm_unpacklo_epi16(inptr[1], sign_bits[1]);
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inptr[1] = _mm_unpackhi_epi16(inptr[0], sign_bits[0]);
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inptr[0] = _mm_unpacklo_epi16(inptr[0], sign_bits[0]);
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_mm_storeu_si128((__m128i *)outptr, inptr[0]);
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_mm_storeu_si128((__m128i *)(outptr + 4), inptr[1]);
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_mm_storeu_si128((__m128i *)(outptr + 8), inptr[2]);
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_mm_storeu_si128((__m128i *)(outptr + 12), inptr[3]);
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} else {
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// Set to use the optimised transform for the column
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optimised_cols = 1;
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}
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} else {
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// Run the un-optimised row transform
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for (i = 0; i < 4; ++i) {
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vpx_highbd_idct4_c(input, outptr, bd);
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input += 4;
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outptr += 4;
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}
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max_input = _mm_max_epi16(io_short[0], io_short[1]);
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min_input = _mm_min_epi16(io_short[0], io_short[1]);
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max_input = _mm_max_epi16(max_input, _mm_srli_si128(max_input, 8));
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min_input = _mm_min_epi16(min_input, _mm_srli_si128(min_input, 8));
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max_input = _mm_max_epi16(max_input, _mm_srli_si128(max_input, 4));
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min_input = _mm_min_epi16(min_input, _mm_srli_si128(min_input, 4));
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max_input = _mm_max_epi16(max_input, _mm_srli_si128(max_input, 2));
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min_input = _mm_min_epi16(min_input, _mm_srli_si128(min_input, 2));
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max = _mm_extract_epi16(max_input, 0);
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min = _mm_extract_epi16(min_input, 0);
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}
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if (optimised_cols) {
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idct4_sse2(inptr);
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// Final round and shift
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inptr[0] = _mm_add_epi16(inptr[0], eight);
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inptr[1] = _mm_add_epi16(inptr[1], eight);
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inptr[0] = _mm_srai_epi16(inptr[0], 4);
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inptr[1] = _mm_srai_epi16(inptr[1], 4);
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// Reconstruction and Store
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{
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__m128i d0 = _mm_loadl_epi64((const __m128i *)dest);
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__m128i d2 = _mm_loadl_epi64((const __m128i *)(dest + stride * 2));
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d0 = _mm_unpacklo_epi64(
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d0, _mm_loadl_epi64((const __m128i *)(dest + stride)));
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d2 = _mm_unpacklo_epi64(
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d2, _mm_loadl_epi64((const __m128i *)(dest + stride * 3)));
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d0 = clamp_high_sse2(_mm_adds_epi16(d0, inptr[0]), bd);
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d2 = clamp_high_sse2(_mm_adds_epi16(d2, inptr[1]), bd);
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// store input0
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_mm_storel_epi64((__m128i *)dest, d0);
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// store input1
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d0 = _mm_srli_si128(d0, 8);
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_mm_storel_epi64((__m128i *)(dest + stride), d0);
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// store input2
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_mm_storel_epi64((__m128i *)(dest + stride * 2), d2);
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// store input3
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d2 = _mm_srli_si128(d2, 8);
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_mm_storel_epi64((__m128i *)(dest + stride * 3), d2);
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}
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if (bd == 8 || (max < 4096 && min >= -4096)) {
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idct4_sse2(io_short);
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idct4_sse2(io_short);
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io_short[0] = _mm_add_epi16(io_short[0], _mm_set1_epi16(8));
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io_short[1] = _mm_add_epi16(io_short[1], _mm_set1_epi16(8));
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io[0] = _mm_srai_epi16(io_short[0], 4);
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io[1] = _mm_srai_epi16(io_short[1], 4);
|
||||
} else {
|
||||
// Run the un-optimised column transform
|
||||
tran_low_t temp_in[4], temp_out[4];
|
||||
// Columns
|
||||
for (i = 0; i < 4; ++i) {
|
||||
for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i];
|
||||
vpx_highbd_idct4_c(temp_in, temp_out, bd);
|
||||
for (j = 0; j < 4; ++j) {
|
||||
dest[j * stride + i] = highbd_clip_pixel_add(
|
||||
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd);
|
||||
}
|
||||
if (max < 32767 && min > -32768) {
|
||||
highbd_idct4_small_sse2(io);
|
||||
highbd_idct4_small_sse2(io);
|
||||
} else {
|
||||
highbd_idct4_large_sse2(io);
|
||||
highbd_idct4_large_sse2(io);
|
||||
}
|
||||
io[0] = wraplow_16bit_sse2(io[0], io[1], _mm_set1_epi32(8));
|
||||
io[1] = wraplow_16bit_sse2(io[2], io[3], _mm_set1_epi32(8));
|
||||
}
|
||||
|
||||
// Reconstruction and Store
|
||||
{
|
||||
__m128i d0 = _mm_loadl_epi64((const __m128i *)dest);
|
||||
__m128i d2 = _mm_loadl_epi64((const __m128i *)(dest + stride * 2));
|
||||
d0 = _mm_unpacklo_epi64(d0,
|
||||
_mm_loadl_epi64((const __m128i *)(dest + stride)));
|
||||
d2 = _mm_unpacklo_epi64(
|
||||
d2, _mm_loadl_epi64((const __m128i *)(dest + stride * 3)));
|
||||
d0 = clamp_high_sse2(_mm_adds_epi16(d0, io[0]), bd);
|
||||
d2 = clamp_high_sse2(_mm_adds_epi16(d2, io[1]), bd);
|
||||
// store input0
|
||||
_mm_storel_epi64((__m128i *)dest, d0);
|
||||
// store input1
|
||||
d0 = _mm_srli_si128(d0, 8);
|
||||
_mm_storel_epi64((__m128i *)(dest + stride), d0);
|
||||
// store input2
|
||||
_mm_storel_epi64((__m128i *)(dest + stride * 2), d2);
|
||||
// store input3
|
||||
d2 = _mm_srli_si128(d2, 8);
|
||||
_mm_storel_epi64((__m128i *)(dest + stride * 3), d2);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user