| /* |
| * 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 "./vpx_dsp_rtcd.h" |
| #include "vpx_dsp/mips/inv_txfm_msa.h" |
| |
| void vpx_idct8x8_64_add_msa(const int16_t *input, uint8_t *dst, |
| int32_t dst_stride) { |
| v8i16 in0, in1, in2, in3, in4, in5, in6, in7; |
| |
| /* load vector elements of 8x8 block */ |
| LD_SH8(input, 8, in0, in1, in2, in3, in4, in5, in6, in7); |
| |
| /* rows transform */ |
| TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| /* 1D idct8x8 */ |
| VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| /* columns transform */ |
| TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| /* 1D idct8x8 */ |
| VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| /* final rounding (add 2^4, divide by 2^5) and shift */ |
| SRARI_H4_SH(in0, in1, in2, in3, 5); |
| SRARI_H4_SH(in4, in5, in6, in7, 5); |
| /* add block and store 8x8 */ |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3); |
| dst += (4 * dst_stride); |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7); |
| } |
| |
| void vpx_idct8x8_12_add_msa(const int16_t *input, uint8_t *dst, |
| int32_t dst_stride) { |
| v8i16 in0, in1, in2, in3, in4, in5, in6, in7; |
| v8i16 s0, s1, s2, s3, s4, s5, s6, s7, k0, k1, k2, k3, m0, m1, m2, m3; |
| v4i32 tmp0, tmp1, tmp2, tmp3; |
| v8i16 zero = { 0 }; |
| |
| /* load vector elements of 8x8 block */ |
| LD_SH8(input, 8, in0, in1, in2, in3, in4, in5, in6, in7); |
| TRANSPOSE8X4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); |
| |
| /* stage1 */ |
| ILVL_H2_SH(in3, in0, in2, in1, s0, s1); |
| k0 = VP9_SET_COSPI_PAIR(cospi_28_64, -cospi_4_64); |
| k1 = VP9_SET_COSPI_PAIR(cospi_4_64, cospi_28_64); |
| k2 = VP9_SET_COSPI_PAIR(-cospi_20_64, cospi_12_64); |
| k3 = VP9_SET_COSPI_PAIR(cospi_12_64, cospi_20_64); |
| DOTP_SH4_SW(s0, s0, s1, s1, k0, k1, k2, k3, tmp0, tmp1, tmp2, tmp3); |
| SRARI_W4_SW(tmp0, tmp1, tmp2, tmp3, DCT_CONST_BITS); |
| PCKEV_H2_SH(zero, tmp0, zero, tmp1, s0, s1); |
| PCKEV_H2_SH(zero, tmp2, zero, tmp3, s2, s3); |
| BUTTERFLY_4(s0, s1, s3, s2, s4, s7, s6, s5); |
| |
| /* stage2 */ |
| ILVR_H2_SH(in3, in1, in2, in0, s1, s0); |
| k0 = VP9_SET_COSPI_PAIR(cospi_16_64, cospi_16_64); |
| k1 = VP9_SET_COSPI_PAIR(cospi_16_64, -cospi_16_64); |
| k2 = VP9_SET_COSPI_PAIR(cospi_24_64, -cospi_8_64); |
| k3 = VP9_SET_COSPI_PAIR(cospi_8_64, cospi_24_64); |
| DOTP_SH4_SW(s0, s0, s1, s1, k0, k1, k2, k3, tmp0, tmp1, tmp2, tmp3); |
| SRARI_W4_SW(tmp0, tmp1, tmp2, tmp3, DCT_CONST_BITS); |
| PCKEV_H2_SH(zero, tmp0, zero, tmp1, s0, s1); |
| PCKEV_H2_SH(zero, tmp2, zero, tmp3, s2, s3); |
| BUTTERFLY_4(s0, s1, s2, s3, m0, m1, m2, m3); |
| |
| /* stage3 */ |
| s0 = __msa_ilvr_h(s6, s5); |
| |
| k1 = VP9_SET_COSPI_PAIR(-cospi_16_64, cospi_16_64); |
| DOTP_SH2_SW(s0, s0, k1, k0, tmp0, tmp1); |
| SRARI_W2_SW(tmp0, tmp1, DCT_CONST_BITS); |
| PCKEV_H2_SH(zero, tmp0, zero, tmp1, s2, s3); |
| |
| /* stage4 */ |
| BUTTERFLY_8(m0, m1, m2, m3, s4, s2, s3, s7, in0, in1, in2, in3, in4, in5, in6, |
| in7); |
| TRANSPOSE4X8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, |
| in4, in5, in6, in7); |
| |
| /* final rounding (add 2^4, divide by 2^5) and shift */ |
| SRARI_H4_SH(in0, in1, in2, in3, 5); |
| SRARI_H4_SH(in4, in5, in6, in7, 5); |
| |
| /* add block and store 8x8 */ |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3); |
| dst += (4 * dst_stride); |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7); |
| } |
| |
| void vpx_idct8x8_1_add_msa(const int16_t *input, uint8_t *dst, |
| int32_t dst_stride) { |
| int16_t out; |
| int32_t val; |
| v8i16 vec; |
| |
| out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), DCT_CONST_BITS); |
| out = ROUND_POWER_OF_TWO((out * cospi_16_64), DCT_CONST_BITS); |
| val = ROUND_POWER_OF_TWO(out, 5); |
| vec = __msa_fill_h(val); |
| |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec); |
| dst += (4 * dst_stride); |
| VP9_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec); |
| } |