1 /* 2 * Copyright (c) 2015 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <assert.h> 12 13 #include "vp9/common/vp9_enums.h" 14 #include "vpx_dsp/mips/inv_txfm_msa.h" 15 16 void vp9_iht4x4_16_add_msa(const int16_t *input, uint8_t *dst, 17 int32_t dst_stride, int32_t tx_type) { 18 v8i16 in0, in1, in2, in3; 19 20 /* load vector elements of 4x4 block */ 21 LD4x4_SH(input, in0, in1, in2, in3); 22 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); 23 24 switch (tx_type) { 25 case DCT_DCT: 26 /* DCT in horizontal */ 27 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); 28 /* DCT in vertical */ 29 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); 30 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); 31 break; 32 case ADST_DCT: 33 /* DCT in horizontal */ 34 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); 35 /* ADST in vertical */ 36 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); 37 VP9_IADST4x4(in0, in1, in2, in3, in0, in1, in2, in3); 38 break; 39 case DCT_ADST: 40 /* ADST in horizontal */ 41 VP9_IADST4x4(in0, in1, in2, in3, in0, in1, in2, in3); 42 /* DCT in vertical */ 43 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); 44 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); 45 break; 46 case ADST_ADST: 47 /* ADST in horizontal */ 48 VP9_IADST4x4(in0, in1, in2, in3, in0, in1, in2, in3); 49 /* ADST in vertical */ 50 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); 51 VP9_IADST4x4(in0, in1, in2, in3, in0, in1, in2, in3); 52 break; 53 default: assert(0); break; 54 } 55 56 /* final rounding (add 2^3, divide by 2^4) and shift */ 57 SRARI_H4_SH(in0, in1, in2, in3, 4); 58 /* add block and store 4x4 */ 59 ADDBLK_ST4x4_UB(in0, in1, in2, in3, dst, dst_stride); 60 } 61
