ref: 8050e0219fae86e4b0603904b576adf4d7f39d35
dir: /vp8/common/mips/msa/idct_msa.c/
/* * Copyright (c) 2015 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "./vp8_rtcd.h" #include "vp8/common/blockd.h" #include "vp8/common/mips/msa/vp8_macros_msa.h" static const int32_t cospi8sqrt2minus1 = 20091; static const int32_t sinpi8sqrt2 = 35468; #define TRANSPOSE_TWO_4x4_H(in0, in1, in2, in3, out0, out1, out2, out3) \ { \ v8i16 s4_m, s5_m, s6_m, s7_m; \ \ TRANSPOSE8X4_SH_SH(in0, in1, in2, in3, s4_m, s5_m, s6_m, s7_m); \ ILVR_D2_SH(s6_m, s4_m, s7_m, s5_m, out0, out2); \ out1 = (v8i16)__msa_ilvl_d((v2i64)s6_m, (v2i64)s4_m); \ out3 = (v8i16)__msa_ilvl_d((v2i64)s7_m, (v2i64)s5_m); \ } #define EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in) \ ({ \ v8i16 out_m; \ v8i16 zero_m = { 0 }; \ v4i32 tmp1_m, tmp2_m; \ v4i32 sinpi8_sqrt2_m = __msa_fill_w(sinpi8sqrt2); \ \ ILVRL_H2_SW(in, zero_m, tmp1_m, tmp2_m); \ tmp1_m >>= 16; \ tmp2_m >>= 16; \ tmp1_m = (tmp1_m * sinpi8_sqrt2_m) >> 16; \ tmp2_m = (tmp2_m * sinpi8_sqrt2_m) >> 16; \ out_m = __msa_pckev_h((v8i16)tmp2_m, (v8i16)tmp1_m); \ \ out_m; \ }) #define VP8_IDCT_1D_H(in0, in1, in2, in3, out0, out1, out2, out3) \ { \ v8i16 a1_m, b1_m, c1_m, d1_m; \ v8i16 c_tmp1_m, c_tmp2_m, d_tmp1_m, d_tmp2_m; \ v8i16 const_cospi8sqrt2minus1_m; \ \ const_cospi8sqrt2minus1_m = __msa_fill_h(cospi8sqrt2minus1); \ a1_m = in0 + in2; \ b1_m = in0 - in2; \ c_tmp1_m = EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in1); \ c_tmp2_m = __msa_mul_q_h(in3, const_cospi8sqrt2minus1_m); \ c_tmp2_m = c_tmp2_m >> 1; \ c_tmp2_m = in3 + c_tmp2_m; \ c1_m = c_tmp1_m - c_tmp2_m; \ d_tmp1_m = __msa_mul_q_h(in1, const_cospi8sqrt2minus1_m); \ d_tmp1_m = d_tmp1_m >> 1; \ d_tmp1_m = in1 + d_tmp1_m; \ d_tmp2_m = EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in3); \ d1_m = d_tmp1_m + d_tmp2_m; \ BUTTERFLY_4(a1_m, b1_m, c1_m, d1_m, out0, out1, out2, out3); \ } #define VP8_IDCT_1D_W(in0, in1, in2, in3, out0, out1, out2, out3) \ { \ v4i32 a1_m, b1_m, c1_m, d1_m; \ v4i32 c_tmp1_m, c_tmp2_m, d_tmp1_m, d_tmp2_m; \ v4i32 const_cospi8sqrt2minus1_m, sinpi8_sqrt2_m; \ \ const_cospi8sqrt2minus1_m = __msa_fill_w(cospi8sqrt2minus1); \ sinpi8_sqrt2_m = __msa_fill_w(sinpi8sqrt2); \ a1_m = in0 + in2; \ b1_m = in0 - in2; \ c_tmp1_m = (in1 * sinpi8_sqrt2_m) >> 16; \ c_tmp2_m = in3 + ((in3 * const_cospi8sqrt2minus1_m) >> 16); \ c1_m = c_tmp1_m - c_tmp2_m; \ d_tmp1_m = in1 + ((in1 * const_cospi8sqrt2minus1_m) >> 16); \ d_tmp2_m = (in3 * sinpi8_sqrt2_m) >> 16; \ d1_m = d_tmp1_m + d_tmp2_m; \ BUTTERFLY_4(a1_m, b1_m, c1_m, d1_m, out0, out1, out2, out3); \ } static void idct4x4_addblk_msa(int16_t *input, uint8_t *pred, int32_t pred_stride, uint8_t *dest, int32_t dest_stride) { v8i16 input0, input1; v4i32 in0, in1, in2, in3, hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3; v4i32 res0, res1, res2, res3; v16i8 zero = { 0 }; v16i8 pred0, pred1, pred2, pred3, dest0, dest1, dest2, dest3; v16i8 mask = { 0, 4, 8, 12, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; LD_SH2(input, 8, input0, input1); UNPCK_SH_SW(input0, in0, in1); UNPCK_SH_SW(input1, in2, in3); VP8_IDCT_1D_W(in0, in1, in2, in3, hz0, hz1, hz2, hz3); TRANSPOSE4x4_SW_SW(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3); VP8_IDCT_1D_W(hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3); SRARI_W4_SW(vt0, vt1, vt2, vt3, 3); TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3); LD_SB4(pred, pred_stride, pred0, pred1, pred2, pred3); ILVR_B4_SW(zero, pred0, zero, pred1, zero, pred2, zero, pred3, res0, res1, res2, res3); ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, res0, res1, res2, res3); ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3); res0 = CLIP_SW_0_255(res0); res1 = CLIP_SW_0_255(res1); res2 = CLIP_SW_0_255(res2); res3 = CLIP_SW_0_255(res3); LD_SB4(dest, dest_stride, dest0, dest1, dest2, dest3); VSHF_B2_SB(res0, dest0, res1, dest1, mask, mask, dest0, dest1); VSHF_B2_SB(res2, dest2, res3, dest3, mask, mask, dest2, dest3); ST_SB4(dest0, dest1, dest2, dest3, dest, dest_stride); } static void idct4x4_addconst_msa(int16_t in_dc, uint8_t *pred, int32_t pred_stride, uint8_t *dest, int32_t dest_stride) { v8i16 vec; v8i16 res0, res1, res2, res3; v16i8 zero = { 0 }; v16i8 pred0, pred1, pred2, pred3, dest0, dest1, dest2, dest3; v16i8 mask = { 0, 2, 4, 6, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; vec = __msa_fill_h(in_dc); vec = __msa_srari_h(vec, 3); LD_SB4(pred, pred_stride, pred0, pred1, pred2, pred3); ILVR_B4_SH(zero, pred0, zero, pred1, zero, pred2, zero, pred3, res0, res1, res2, res3); ADD4(res0, vec, res1, vec, res2, vec, res3, vec, res0, res1, res2, res3); CLIP_SH4_0_255(res0, res1, res2, res3); LD_SB4(dest, dest_stride, dest0, dest1, dest2, dest3); VSHF_B2_SB(res0, dest0, res1, dest1, mask, mask, dest0, dest1); VSHF_B2_SB(res2, dest2, res3, dest3, mask, mask, dest2, dest3); ST_SB4(dest0, dest1, dest2, dest3, dest, dest_stride); } void vp8_short_inv_walsh4x4_msa(int16_t *input, int16_t *mb_dq_coeff) { v8i16 input0, input1; v4i32 in0, in1, in2, in3, a1, b1, c1, d1; v4i32 hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3; LD_SH2(input, 8, input0, input1); UNPCK_SH_SW(input0, in0, in1); UNPCK_SH_SW(input1, in2, in3); BUTTERFLY_4(in0, in1, in2, in3, a1, b1, c1, d1); BUTTERFLY_4(a1, d1, c1, b1, hz0, hz1, hz3, hz2); TRANSPOSE4x4_SW_SW(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3); BUTTERFLY_4(hz0, hz1, hz2, hz3, a1, b1, c1, d1); BUTTERFLY_4(a1, d1, c1, b1, vt0, vt1, vt3, vt2); ADD4(vt0, 3, vt1, 3, vt2, 3, vt3, 3, vt0, vt1, vt2, vt3); SRA_4V(vt0, vt1, vt2, vt3, 3); mb_dq_coeff[0] = __msa_copy_s_h((v8i16)vt0, 0); mb_dq_coeff[16] = __msa_copy_s_h((v8i16)vt1, 0); mb_dq_coeff[32] = __msa_copy_s_h((v8i16)vt2, 0); mb_dq_coeff[48] = __msa_copy_s_h((v8i16)vt3, 0); mb_dq_coeff[64] = __msa_copy_s_h((v8i16)vt0, 2); mb_dq_coeff[80] = __msa_copy_s_h((v8i16)vt1, 2); mb_dq_coeff[96] = __msa_copy_s_h((v8i16)vt2, 2); mb_dq_coeff[112] = __msa_copy_s_h((v8i16)vt3, 2); mb_dq_coeff[128] = __msa_copy_s_h((v8i16)vt0, 4); mb_dq_coeff[144] = __msa_copy_s_h((v8i16)vt1, 4); mb_dq_coeff[160] = __msa_copy_s_h((v8i16)vt2, 4); mb_dq_coeff[176] = __msa_copy_s_h((v8i16)vt3, 4); mb_dq_coeff[192] = __msa_copy_s_h((v8i16)vt0, 6); mb_dq_coeff[208] = __msa_copy_s_h((v8i16)vt1, 6); mb_dq_coeff[224] = __msa_copy_s_h((v8i16)vt2, 6); mb_dq_coeff[240] = __msa_copy_s_h((v8i16)vt3, 6); } static void dequant_idct4x4_addblk_msa(int16_t *input, int16_t *dequant_input, uint8_t *dest, int32_t dest_stride) { v8i16 input0, input1, dequant_in0, dequant_in1, mul0, mul1; v8i16 in0, in1, in2, in3; v8i16 hz0_h, hz1_h, hz2_h, hz3_h; v16i8 dest0, dest1, dest2, dest3; v4i32 hz0_w, hz1_w, hz2_w, hz3_w; v4i32 vt0, vt1, vt2, vt3, res0, res1, res2, res3; v2i64 zero = { 0 }; v16i8 mask = { 0, 4, 8, 12, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; LD_SH2(input, 8, input0, input1); LD_SH2(dequant_input, 8, dequant_in0, dequant_in1); MUL2(input0, dequant_in0, input1, dequant_in1, mul0, mul1); PCKEV_D2_SH(zero, mul0, zero, mul1, in0, in2); PCKOD_D2_SH(zero, mul0, zero, mul1, in1, in3); VP8_IDCT_1D_H(in0, in1, in2, in3, hz0_h, hz1_h, hz2_h, hz3_h); PCKEV_D2_SH(hz1_h, hz0_h, hz3_h, hz2_h, mul0, mul1); UNPCK_SH_SW(mul0, hz0_w, hz1_w); UNPCK_SH_SW(mul1, hz2_w, hz3_w); TRANSPOSE4x4_SW_SW(hz0_w, hz1_w, hz2_w, hz3_w, hz0_w, hz1_w, hz2_w, hz3_w); VP8_IDCT_1D_W(hz0_w, hz1_w, hz2_w, hz3_w, vt0, vt1, vt2, vt3); SRARI_W4_SW(vt0, vt1, vt2, vt3, 3); TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3); LD_SB4(dest, dest_stride, dest0, dest1, dest2, dest3); ILVR_B4_SW(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1, res2, res3); ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, res0, res1, res2, res3); ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3); res0 = CLIP_SW_0_255(res0); res1 = CLIP_SW_0_255(res1); res2 = CLIP_SW_0_255(res2); res3 = CLIP_SW_0_255(res3); VSHF_B2_SB(res0, dest0, res1, dest1, mask, mask, dest0, dest1); VSHF_B2_SB(res2, dest2, res3, dest3, mask, mask, dest2, dest3); ST_SB4(dest0, dest1, dest2, dest3, dest, dest_stride); } static void dequant_idct4x4_addblk_2x_msa(int16_t *input, int16_t *dequant_input, uint8_t *dest, int32_t dest_stride) { v16u8 dest0, dest1, dest2, dest3; v8i16 in0, in1, in2, in3; v8i16 mul0, mul1, mul2, mul3, dequant_in0, dequant_in1; v8i16 hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3; v8i16 res0, res1, res2, res3; v4i32 hz0l, hz1l, hz2l, hz3l, hz0r, hz1r, hz2r, hz3r; v4i32 vt0l, vt1l, vt2l, vt3l, vt0r, vt1r, vt2r, vt3r; v16i8 zero = { 0 }; LD_SH4(input, 8, in0, in1, in2, in3); LD_SH2(dequant_input, 8, dequant_in0, dequant_in1); MUL4(in0, dequant_in0, in1, dequant_in1, in2, dequant_in0, in3, dequant_in1, mul0, mul1, mul2, mul3); PCKEV_D2_SH(mul2, mul0, mul3, mul1, in0, in2); PCKOD_D2_SH(mul2, mul0, mul3, mul1, in1, in3); VP8_IDCT_1D_H(in0, in1, in2, in3, hz0, hz1, hz2, hz3); TRANSPOSE_TWO_4x4_H(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3); UNPCK_SH_SW(hz0, hz0r, hz0l); UNPCK_SH_SW(hz1, hz1r, hz1l); UNPCK_SH_SW(hz2, hz2r, hz2l); UNPCK_SH_SW(hz3, hz3r, hz3l); VP8_IDCT_1D_W(hz0l, hz1l, hz2l, hz3l, vt0l, vt1l, vt2l, vt3l); SRARI_W4_SW(vt0l, vt1l, vt2l, vt3l, 3); VP8_IDCT_1D_W(hz0r, hz1r, hz2r, hz3r, vt0r, vt1r, vt2r, vt3r); SRARI_W4_SW(vt0r, vt1r, vt2r, vt3r, 3); PCKEV_H4_SH(vt0l, vt0r, vt1l, vt1r, vt2l, vt2r, vt3l, vt3r, vt0, vt1, vt2, vt3); TRANSPOSE_TWO_4x4_H(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3); LD_UB4(dest, dest_stride, dest0, dest1, dest2, dest3); ILVR_B4_SH(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1, res2, res3); ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3); CLIP_SH4_0_255(res0, res1, res2, res3); PCKEV_B4_SH(res0, res0, res1, res1, res2, res2, res3, res3, res0, res1, res2, res3); PCKOD_D2_UB(dest0, res0, dest1, res1, dest0, dest1); PCKOD_D2_UB(dest2, res2, dest3, res3, dest2, dest3); ST_UB4(dest0, dest1, dest2, dest3, dest, dest_stride); __asm__ __volatile__( "sw $zero, 0(%[input]) \n\t" "sw $zero, 4(%[input]) \n\t" "sw $zero, 8(%[input]) \n\t" "sw $zero, 12(%[input]) \n\t" "sw $zero, 16(%[input]) \n\t" "sw $zero, 20(%[input]) \n\t" "sw $zero, 24(%[input]) \n\t" "sw $zero, 28(%[input]) \n\t" "sw $zero, 32(%[input]) \n\t" "sw $zero, 36(%[input]) \n\t" "sw $zero, 40(%[input]) \n\t" "sw $zero, 44(%[input]) \n\t" "sw $zero, 48(%[input]) \n\t" "sw $zero, 52(%[input]) \n\t" "sw $zero, 56(%[input]) \n\t" "sw $zero, 60(%[input]) \n\t":: [input] "r"(input) ); } static void dequant_idct_addconst_2x_msa(int16_t *input, int16_t *dequant_input, uint8_t *dest, int32_t dest_stride) { v8i16 input_dc0, input_dc1, vec; v16u8 dest0, dest1, dest2, dest3; v16i8 zero = { 0 }; v8i16 res0, res1, res2, res3; input_dc0 = __msa_fill_h(input[0] * dequant_input[0]); input_dc1 = __msa_fill_h(input[16] * dequant_input[0]); SRARI_H2_SH(input_dc0, input_dc1, 3); vec = (v8i16)__msa_pckev_d((v2i64)input_dc1, (v2i64)input_dc0); input[0] = 0; input[16] = 0; LD_UB4(dest, dest_stride, dest0, dest1, dest2, dest3); ILVR_B4_SH(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1, res2, res3); ADD4(res0, vec, res1, vec, res2, vec, res3, vec, res0, res1, res2, res3); CLIP_SH4_0_255(res0, res1, res2, res3); PCKEV_B4_SH(res0, res0, res1, res1, res2, res2, res3, res3, res0, res1, res2, res3); PCKOD_D2_UB(dest0, res0, dest1, res1, dest0, dest1); PCKOD_D2_UB(dest2, res2, dest3, res3, dest2, dest3); ST_UB4(dest0, dest1, dest2, dest3, dest, dest_stride); } void vp8_short_idct4x4llm_msa(int16_t *input, uint8_t *pred_ptr, int32_t pred_stride, uint8_t *dst_ptr, int32_t dst_stride) { idct4x4_addblk_msa(input, pred_ptr, pred_stride, dst_ptr, dst_stride); } void vp8_dc_only_idct_add_msa(int16_t input_dc, uint8_t *pred_ptr, int32_t pred_stride, uint8_t *dst_ptr, int32_t dst_stride) { idct4x4_addconst_msa(input_dc, pred_ptr, pred_stride, dst_ptr, dst_stride); } void vp8_dequantize_b_msa(BLOCKD *d, int16_t *DQC) { v8i16 dqc0, dqc1, q0, q1, dq0, dq1; LD_SH2(DQC, 8, dqc0, dqc1); LD_SH2(d->qcoeff, 8, q0, q1); MUL2(dqc0, q0, dqc1, q1, dq0, dq1); ST_SH2(dq0, dq1, d->dqcoeff, 8); } void vp8_dequant_idct_add_msa(int16_t *input, int16_t *dq, uint8_t *dest, int32_t stride) { dequant_idct4x4_addblk_msa(input, dq, dest, stride); __asm__ __volatile__ ( "sw $zero, 0(%[input]) \n\t" "sw $zero, 4(%[input]) \n\t" "sw $zero, 8(%[input]) \n\t" "sw $zero, 12(%[input]) \n\t" "sw $zero, 16(%[input]) \n\t" "sw $zero, 20(%[input]) \n\t" "sw $zero, 24(%[input]) \n\t" "sw $zero, 28(%[input]) \n\t" : : [input] "r" (input) ); } void vp8_dequant_idct_add_y_block_msa(int16_t *q, int16_t *dq, uint8_t *dst, int32_t stride, char *eobs) { int16_t *eobs_h = (int16_t *)eobs; uint8_t i; for (i = 4; i--;) { if (eobs_h[0]) { if (eobs_h[0] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dst, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dst, stride); } } q += 32; if (eobs_h[1]) { if (eobs_h[1] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dst + 8, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dst + 8, stride); } } q += 32; dst += (4 * stride); eobs_h += 2; } } void vp8_dequant_idct_add_uv_block_msa(int16_t *q, int16_t *dq, uint8_t *dstu, uint8_t *dstv, int32_t stride, char *eobs) { int16_t *eobs_h = (int16_t *)eobs; if (eobs_h[0]) { if (eobs_h[0] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dstu, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dstu, stride); } } q += 32; dstu += (stride * 4); if (eobs_h[1]) { if (eobs_h[1] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dstu, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dstu, stride); } } q += 32; if (eobs_h[2]) { if (eobs_h[2] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dstv, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dstv, stride); } } q += 32; dstv += (stride * 4); if (eobs_h[3]) { if (eobs_h[3] & 0xfefe) { dequant_idct4x4_addblk_2x_msa(q, dq, dstv, stride); } else { dequant_idct_addconst_2x_msa(q, dq, dstv, stride); } } }