diff options
Diffstat (limited to 'third_party/aom/aom_dsp/mips/idct8x8_msa.c')
| -rw-r--r-- | third_party/aom/aom_dsp/mips/idct8x8_msa.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/mips/idct8x8_msa.c b/third_party/aom/aom_dsp/mips/idct8x8_msa.c new file mode 100644 index 000000000..981c103cd --- /dev/null +++ b/third_party/aom/aom_dsp/mips/idct8x8_msa.c @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include "aom_dsp/mips/inv_txfm_msa.h" + +void aom_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 */ + AOM_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 */ + AOM_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 */ + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3); + dst += (4 * dst_stride); + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7); +} + +void aom_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 = AOM_SET_COSPI_PAIR(cospi_28_64, -cospi_4_64); + k1 = AOM_SET_COSPI_PAIR(cospi_4_64, cospi_28_64); + k2 = AOM_SET_COSPI_PAIR(-cospi_20_64, cospi_12_64); + k3 = AOM_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 = AOM_SET_COSPI_PAIR(cospi_16_64, cospi_16_64); + k1 = AOM_SET_COSPI_PAIR(cospi_16_64, -cospi_16_64); + k2 = AOM_SET_COSPI_PAIR(cospi_24_64, -cospi_8_64); + k3 = AOM_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 = AOM_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); + AOM_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 */ + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3); + dst += (4 * dst_stride); + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7); +} + +void aom_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); + + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec); + dst += (4 * dst_stride); + AOM_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec); +} |