10a39d0a697ff3603e8c100300fda363658e10b23James Zern/* 20a39d0a697ff3603e8c100300fda363658e10b23James Zern * Copyright (c) 2017 The WebM project authors. All Rights Reserved. 30a39d0a697ff3603e8c100300fda363658e10b23James Zern * 40a39d0a697ff3603e8c100300fda363658e10b23James Zern * Use of this source code is governed by a BSD-style license 50a39d0a697ff3603e8c100300fda363658e10b23James Zern * that can be found in the LICENSE file in the root of the source 60a39d0a697ff3603e8c100300fda363658e10b23James Zern * tree. An additional intellectual property rights grant can be found 70a39d0a697ff3603e8c100300fda363658e10b23James Zern * in the file PATENTS. All contributing project authors may 80a39d0a697ff3603e8c100300fda363658e10b23James Zern * be found in the AUTHORS file in the root of the source tree. 90a39d0a697ff3603e8c100300fda363658e10b23James Zern */ 100a39d0a697ff3603e8c100300fda363658e10b23James Zern 110a39d0a697ff3603e8c100300fda363658e10b23James Zern#ifndef VPX_DSP_PPC_TRANSPOSE_VSX_H_ 120a39d0a697ff3603e8c100300fda363658e10b23James Zern#define VPX_DSP_PPC_TRANSPOSE_VSX_H_ 130a39d0a697ff3603e8c100300fda363658e10b23James Zern 140a39d0a697ff3603e8c100300fda363658e10b23James Zern#include "./vpx_config.h" 150a39d0a697ff3603e8c100300fda363658e10b23James Zern#include "vpx_dsp/ppc/types_vsx.h" 160a39d0a697ff3603e8c100300fda363658e10b23James Zern 170a39d0a697ff3603e8c100300fda363658e10b23James Zernstatic INLINE void vpx_transpose_s16_8x8(int16x8_t v[8]) { 180a39d0a697ff3603e8c100300fda363658e10b23James Zern // d = vec_mergeh(a,b): 190a39d0a697ff3603e8c100300fda363658e10b23James Zern // The even elements of the result are obtained left-to-right, 200a39d0a697ff3603e8c100300fda363658e10b23James Zern // from the high elements of a. 210a39d0a697ff3603e8c100300fda363658e10b23James Zern // The odd elements of the result are obtained left-to-right, 220a39d0a697ff3603e8c100300fda363658e10b23James Zern // from the high elements of b. 230a39d0a697ff3603e8c100300fda363658e10b23James Zern // 240a39d0a697ff3603e8c100300fda363658e10b23James Zern // d = vec_mergel(a,b): 250a39d0a697ff3603e8c100300fda363658e10b23James Zern // The even elements of the result are obtained left-to-right, 260a39d0a697ff3603e8c100300fda363658e10b23James Zern // from the low elements of a. 270a39d0a697ff3603e8c100300fda363658e10b23James Zern // The odd elements of the result are obtained left-to-right, 280a39d0a697ff3603e8c100300fda363658e10b23James Zern // from the low elements of b. 290a39d0a697ff3603e8c100300fda363658e10b23James Zern 300a39d0a697ff3603e8c100300fda363658e10b23James Zern // Example, starting with: 310a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[0]: 00 01 02 03 04 05 06 07 320a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[1]: 10 11 12 13 14 15 16 17 330a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[2]: 20 21 22 23 24 25 26 27 340a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[3]: 30 31 32 33 34 35 36 37 350a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[4]: 40 41 42 43 44 45 46 47 360a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[5]: 50 51 52 53 54 55 56 57 370a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[6]: 60 61 62 63 64 65 66 67 380a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[7]: 70 71 72 73 74 75 76 77 390a39d0a697ff3603e8c100300fda363658e10b23James Zern 400a39d0a697ff3603e8c100300fda363658e10b23James Zern int16x8_t b0, b1, b2, b3, b4, b5, b6, b7; 410a39d0a697ff3603e8c100300fda363658e10b23James Zern int16x8_t c0, c1, c2, c3, c4, c5, c6, c7; 420a39d0a697ff3603e8c100300fda363658e10b23James Zern 430a39d0a697ff3603e8c100300fda363658e10b23James Zern b0 = vec_mergeh(v[0], v[4]); 440a39d0a697ff3603e8c100300fda363658e10b23James Zern b1 = vec_mergel(v[0], v[4]); 450a39d0a697ff3603e8c100300fda363658e10b23James Zern b2 = vec_mergeh(v[1], v[5]); 460a39d0a697ff3603e8c100300fda363658e10b23James Zern b3 = vec_mergel(v[1], v[5]); 470a39d0a697ff3603e8c100300fda363658e10b23James Zern b4 = vec_mergeh(v[2], v[6]); 480a39d0a697ff3603e8c100300fda363658e10b23James Zern b5 = vec_mergel(v[2], v[6]); 490a39d0a697ff3603e8c100300fda363658e10b23James Zern b6 = vec_mergeh(v[3], v[7]); 500a39d0a697ff3603e8c100300fda363658e10b23James Zern b7 = vec_mergel(v[3], v[7]); 510a39d0a697ff3603e8c100300fda363658e10b23James Zern 520a39d0a697ff3603e8c100300fda363658e10b23James Zern // After first merge operation 530a39d0a697ff3603e8c100300fda363658e10b23James Zern // b0: 00 40 01 41 02 42 03 43 540a39d0a697ff3603e8c100300fda363658e10b23James Zern // b1: 04 44 05 45 06 46 07 47 550a39d0a697ff3603e8c100300fda363658e10b23James Zern // b2: 10 50 11 51 12 52 13 53 560a39d0a697ff3603e8c100300fda363658e10b23James Zern // b3: 14 54 15 55 16 56 17 57 570a39d0a697ff3603e8c100300fda363658e10b23James Zern // b4: 20 60 21 61 22 62 23 63 580a39d0a697ff3603e8c100300fda363658e10b23James Zern // b5: 24 64 25 65 26 66 27 67 590a39d0a697ff3603e8c100300fda363658e10b23James Zern // b6: 30 70 31 71 32 62 33 73 600a39d0a697ff3603e8c100300fda363658e10b23James Zern // b7: 34 74 35 75 36 76 37 77 610a39d0a697ff3603e8c100300fda363658e10b23James Zern 620a39d0a697ff3603e8c100300fda363658e10b23James Zern c0 = vec_mergeh(b0, b4); 630a39d0a697ff3603e8c100300fda363658e10b23James Zern c1 = vec_mergel(b0, b4); 640a39d0a697ff3603e8c100300fda363658e10b23James Zern c2 = vec_mergeh(b1, b5); 650a39d0a697ff3603e8c100300fda363658e10b23James Zern c3 = vec_mergel(b1, b5); 660a39d0a697ff3603e8c100300fda363658e10b23James Zern c4 = vec_mergeh(b2, b6); 670a39d0a697ff3603e8c100300fda363658e10b23James Zern c5 = vec_mergel(b2, b6); 680a39d0a697ff3603e8c100300fda363658e10b23James Zern c6 = vec_mergeh(b3, b7); 690a39d0a697ff3603e8c100300fda363658e10b23James Zern c7 = vec_mergel(b3, b7); 700a39d0a697ff3603e8c100300fda363658e10b23James Zern 710a39d0a697ff3603e8c100300fda363658e10b23James Zern // After second merge operation 720a39d0a697ff3603e8c100300fda363658e10b23James Zern // c0: 00 20 40 60 01 21 41 61 730a39d0a697ff3603e8c100300fda363658e10b23James Zern // c1: 02 22 42 62 03 23 43 63 740a39d0a697ff3603e8c100300fda363658e10b23James Zern // c2: 04 24 44 64 05 25 45 65 750a39d0a697ff3603e8c100300fda363658e10b23James Zern // c3: 06 26 46 66 07 27 47 67 760a39d0a697ff3603e8c100300fda363658e10b23James Zern // c4: 10 30 50 70 11 31 51 71 770a39d0a697ff3603e8c100300fda363658e10b23James Zern // c5: 12 32 52 72 13 33 53 73 780a39d0a697ff3603e8c100300fda363658e10b23James Zern // c6: 14 34 54 74 15 35 55 75 790a39d0a697ff3603e8c100300fda363658e10b23James Zern // c7: 16 36 56 76 17 37 57 77 800a39d0a697ff3603e8c100300fda363658e10b23James Zern 810a39d0a697ff3603e8c100300fda363658e10b23James Zern v[0] = vec_mergeh(c0, c4); 820a39d0a697ff3603e8c100300fda363658e10b23James Zern v[1] = vec_mergel(c0, c4); 830a39d0a697ff3603e8c100300fda363658e10b23James Zern v[2] = vec_mergeh(c1, c5); 840a39d0a697ff3603e8c100300fda363658e10b23James Zern v[3] = vec_mergel(c1, c5); 850a39d0a697ff3603e8c100300fda363658e10b23James Zern v[4] = vec_mergeh(c2, c6); 860a39d0a697ff3603e8c100300fda363658e10b23James Zern v[5] = vec_mergel(c2, c6); 870a39d0a697ff3603e8c100300fda363658e10b23James Zern v[6] = vec_mergeh(c3, c7); 880a39d0a697ff3603e8c100300fda363658e10b23James Zern v[7] = vec_mergel(c3, c7); 890a39d0a697ff3603e8c100300fda363658e10b23James Zern 900a39d0a697ff3603e8c100300fda363658e10b23James Zern // After last merge operation 910a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[0]: 00 10 20 30 40 50 60 70 920a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[1]: 01 11 21 31 41 51 61 71 930a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[2]: 02 12 22 32 42 52 62 72 940a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[3]: 03 13 23 33 43 53 63 73 950a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[4]: 04 14 24 34 44 54 64 74 960a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[5]: 05 15 25 35 45 55 65 75 970a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[6]: 06 16 26 36 46 56 66 76 980a39d0a697ff3603e8c100300fda363658e10b23James Zern // v[7]: 07 17 27 37 47 57 67 77 990a39d0a697ff3603e8c100300fda363658e10b23James Zern} 1000a39d0a697ff3603e8c100300fda363658e10b23James Zern 1010a39d0a697ff3603e8c100300fda363658e10b23James Zern#endif // VPX_DSP_PPC_TRANSPOSE_VSX_H_ 102