| /* |
| * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com) |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| #include "libavcodec/vp8dsp.h" |
| #include "libavutil/mips/generic_macros_msa.h" |
| #include "vp8dsp_mips.h" |
| |
| static const int cospi8sqrt2minus1 = 20091; |
| static const int sinpi8sqrt2 = 35468; |
| |
| #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); \ |
| } |
| |
| void ff_vp8_idct_add_msa(uint8_t *dst, int16_t input[16], ptrdiff_t 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; |
| v16i8 mask = { 0, 4, 8, 12, 16, 20, 24, 28, 0, 0, 0, 0, 0, 0, 0, 0 }; |
| |
| /* load short vector elements of 4x4 block */ |
| 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); |
| /* transpose the block */ |
| 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); |
| /* transpose the block */ |
| TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3); |
| LD_SB4(dst, 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); |
| VSHF_B2_SB(res0, res1, res2, res3, mask, mask, dest0, dest1); |
| ST4x4_UB(dest0, dest1, 0, 1, 0, 1, dst, stride); |
| |
| memset(input, 0, 4 * 4 * sizeof(*input)); |
| } |
| |
| void ff_vp8_idct_dc_add_msa(uint8_t *dst, int16_t in_dc[16], ptrdiff_t stride) |
| { |
| v8i16 vec; |
| v8i16 res0, res1, res2, res3; |
| v16i8 zero = { 0 }; |
| v16i8 pred0, pred1, pred2, pred3, dest0, dest1; |
| v16i8 mask = { 0, 2, 4, 6, 16, 18, 20, 22, 0, 0, 0, 0, 0, 0, 0, 0 }; |
| |
| vec = __msa_fill_h(in_dc[0]); |
| vec = __msa_srari_h(vec, 3); |
| LD_SB4(dst, 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); |
| VSHF_B2_SB(res0, res1, res2, res3, mask, mask, dest0, dest1); |
| ST4x4_UB(dest0, dest1, 0, 1, 0, 1, dst, stride); |
| |
| in_dc[0] = 0; |
| } |
| |
| void ff_vp8_luma_dc_wht_msa(int16_t block[4][4][16], int16_t input[16]) |
| { |
| int16_t *mb_dq_coeff = &block[0][0][0]; |
| v8i16 input0, input1; |
| v4i32 in0, in1, in2, in3, a1, b1, c1, d1; |
| v4i32 hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3; |
| |
| /* load short vector elements of 4x4 block */ |
| 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); |
| /* transpose the block */ |
| 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); |
| |
| memset(input, 0, 4 * 4 * sizeof(int16_t)); |
| } |
| |
| void ff_vp8_idct_dc_add4y_msa(uint8_t *dst, int16_t block[4][16], |
| ptrdiff_t stride) |
| { |
| ff_vp8_idct_dc_add_msa(dst, &block[0][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + 4, &block[1][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + 8, &block[2][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + 12, &block[3][0], stride); |
| } |
| |
| void ff_vp8_idct_dc_add4uv_msa(uint8_t *dst, int16_t block[4][16], |
| ptrdiff_t stride) |
| { |
| ff_vp8_idct_dc_add_msa(dst, &block[0][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + 4, &block[1][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + stride * 4, &block[2][0], stride); |
| ff_vp8_idct_dc_add_msa(dst + stride * 4 + 4, &block[3][0], stride); |
| } |