ref: 5c327cb4506233c422c719f5a5e8c03d1f064b79
dir: /vp10/common/mips/msa/idct8x8_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 <assert.h> #include "vp10/common/enums.h" #include "vpx_dsp/mips/inv_txfm_msa.h" void vp10_iht8x8_64_add_msa(const int16_t *input, uint8_t *dst, int32_t dst_stride, int32_t tx_type) { 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); TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); switch (tx_type) { case DCT_DCT: /* DCT in horizontal */ VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); /* DCT in vertical */ TRANSPOSE8x8_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); break; case ADST_DCT: /* DCT in horizontal */ VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); /* ADST in vertical */ TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); VP9_ADST8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); break; case DCT_ADST: /* ADST in horizontal */ VP9_ADST8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); /* DCT in vertical */ TRANSPOSE8x8_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); break; case ADST_ADST: /* ADST in horizontal */ VP9_ADST8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); /* ADST in vertical */ TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); VP9_ADST8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5, in6, in7); break; default: assert(0); break; } /* 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); }