1 /*
2 * Copyright (c) 2013 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 #include <stdio.h>
13
14 #include "./vpx_config.h"
15 #include "./vp9_rtcd.h"
16 #include "vp9/common/vp9_common.h"
17 #include "vp9/common/vp9_blockd.h"
18 #include "vp9/common/vp9_idct.h"
19 #include "vpx_dsp/mips/inv_txfm_dspr2.h"
20 #include "vpx_dsp/txfm_common.h"
21 #include "vpx_ports/mem.h"
22
23 #if HAVE_DSPR2
vp9_iht4x4_16_add_dspr2(const int16_t * input,uint8_t * dest,int stride,int tx_type)24 void vp9_iht4x4_16_add_dspr2(const int16_t *input, uint8_t *dest, int stride,
25 int tx_type) {
26 int i, j;
27 DECLARE_ALIGNED(32, int16_t, out[4 * 4]);
28 int16_t *outptr = out;
29 int16_t temp_in[4 * 4], temp_out[4];
30 uint32_t pos = 45;
31
32 /* bit positon for extract from acc */
33 __asm__ __volatile__("wrdsp %[pos], 1 \n\t"
34 :
35 : [pos] "r"(pos));
36
37 switch (tx_type) {
38 case DCT_DCT: // DCT in both horizontal and vertical
39 vpx_idct4_rows_dspr2(input, outptr);
40 vpx_idct4_columns_add_blk_dspr2(&out[0], dest, stride);
41 break;
42 case ADST_DCT: // ADST in vertical, DCT in horizontal
43 vpx_idct4_rows_dspr2(input, outptr);
44
45 outptr = out;
46
47 for (i = 0; i < 4; ++i) {
48 iadst4_dspr2(outptr, temp_out);
49
50 for (j = 0; j < 4; ++j)
51 dest[j * stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 4) +
52 dest[j * stride + i]);
53
54 outptr += 4;
55 }
56 break;
57 case DCT_ADST: // DCT in vertical, ADST in horizontal
58 for (i = 0; i < 4; ++i) {
59 iadst4_dspr2(input, outptr);
60 input += 4;
61 outptr += 4;
62 }
63
64 for (i = 0; i < 4; ++i) {
65 for (j = 0; j < 4; ++j) {
66 temp_in[i * 4 + j] = out[j * 4 + i];
67 }
68 }
69 vpx_idct4_columns_add_blk_dspr2(&temp_in[0], dest, stride);
70 break;
71 case ADST_ADST: // ADST in both directions
72 for (i = 0; i < 4; ++i) {
73 iadst4_dspr2(input, outptr);
74 input += 4;
75 outptr += 4;
76 }
77
78 for (i = 0; i < 4; ++i) {
79 for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i];
80 iadst4_dspr2(temp_in, temp_out);
81
82 for (j = 0; j < 4; ++j)
83 dest[j * stride + i] = clip_pixel(ROUND_POWER_OF_TWO(temp_out[j], 4) +
84 dest[j * stride + i]);
85 }
86 break;
87 default: printf("vp9_short_iht4x4_add_dspr2 : Invalid tx_type\n"); break;
88 }
89 }
90 #endif // #if HAVE_DSPR2
91