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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved. | 2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "./vp9_rtcd.h" | 11 #include "./vp9_rtcd.h" |
12 #include "vp9/common/vp9_common.h" | 12 #include "vp9/common/vp9_common.h" |
13 #include "vpx_ports/mem.h" | 13 #include "vpx_ports/mem.h" |
14 | 14 |
15 void vp9_convolve8_neon(const uint8_t *src, ptrdiff_t src_stride, | 15 void vp9_convolve8_neon(const uint8_t *src, ptrdiff_t src_stride, |
16 uint8_t *dst, ptrdiff_t dst_stride, | 16 uint8_t *dst, ptrdiff_t dst_stride, |
17 const int16_t *filter_x, int x_step_q4, | 17 const int16_t *filter_x, int x_step_q4, |
18 const int16_t *filter_y, int y_step_q4, | 18 const int16_t *filter_y, int y_step_q4, |
19 int w, int h) { | 19 int w, int h) { |
20 /* Given our constraints: w <= 64, h <= 64, taps == 8 we can reduce the | 20 /* Given our constraints: w <= 64, h <= 64, taps == 8 we can reduce the |
21 * maximum buffer size to 64 * 64 + 7 (+ 1 to make it divisible by 4). | 21 * maximum buffer size to 64 * 64 + 7 (+ 1 to make it divisible by 4). |
22 */ | 22 */ |
23 DECLARE_ALIGNED_ARRAY(8, uint8_t, temp, 64 * 72); | 23 DECLARE_ALIGNED_ARRAY(8, uint8_t, temp, 64 * 72); |
24 | 24 |
25 // Account for the vertical phase needing 3 lines prior and 4 lines post | 25 // Account for the vertical phase needing 3 lines prior and 4 lines post |
26 int intermediate_height = h + 7; | 26 int intermediate_height = h + 7; |
27 | 27 |
28 if (x_step_q4 != 16 || y_step_q4 != 16) | 28 if (x_step_q4 != 16 || y_step_q4 != 16) { |
29 return vp9_convolve8_c(src, src_stride, | 29 vp9_convolve8_c(src, src_stride, |
30 dst, dst_stride, | 30 dst, dst_stride, |
31 filter_x, x_step_q4, | 31 filter_x, x_step_q4, |
32 filter_y, y_step_q4, | 32 filter_y, y_step_q4, |
33 w, h); | 33 w, h); |
| 34 return; |
| 35 } |
34 | 36 |
35 /* Filter starting 3 lines back. The neon implementation will ignore the | 37 /* Filter starting 3 lines back. The neon implementation will ignore the |
36 * given height and filter a multiple of 4 lines. Since this goes in to | 38 * given height and filter a multiple of 4 lines. Since this goes in to |
37 * the temp buffer which has lots of extra room and is subsequently discarded | 39 * the temp buffer which has lots of extra room and is subsequently discarded |
38 * this is safe if somewhat less than ideal. | 40 * this is safe if somewhat less than ideal. |
39 */ | 41 */ |
40 vp9_convolve8_horiz_neon(src - src_stride * 3, src_stride, | 42 vp9_convolve8_horiz_neon(src - src_stride * 3, src_stride, |
41 temp, 64, | 43 temp, 64, |
42 filter_x, x_step_q4, filter_y, y_step_q4, | 44 filter_x, x_step_q4, filter_y, y_step_q4, |
43 w, intermediate_height); | 45 w, intermediate_height); |
44 | 46 |
45 /* Step into the temp buffer 3 lines to get the actual frame data */ | 47 /* Step into the temp buffer 3 lines to get the actual frame data */ |
46 vp9_convolve8_vert_neon(temp + 64 * 3, 64, | 48 vp9_convolve8_vert_neon(temp + 64 * 3, 64, |
47 dst, dst_stride, | 49 dst, dst_stride, |
48 filter_x, x_step_q4, filter_y, y_step_q4, | 50 filter_x, x_step_q4, filter_y, y_step_q4, |
49 w, h); | 51 w, h); |
50 } | 52 } |
51 | 53 |
52 void vp9_convolve8_avg_neon(const uint8_t *src, ptrdiff_t src_stride, | 54 void vp9_convolve8_avg_neon(const uint8_t *src, ptrdiff_t src_stride, |
53 uint8_t *dst, ptrdiff_t dst_stride, | 55 uint8_t *dst, ptrdiff_t dst_stride, |
54 const int16_t *filter_x, int x_step_q4, | 56 const int16_t *filter_x, int x_step_q4, |
55 const int16_t *filter_y, int y_step_q4, | 57 const int16_t *filter_y, int y_step_q4, |
56 int w, int h) { | 58 int w, int h) { |
57 DECLARE_ALIGNED_ARRAY(8, uint8_t, temp, 64 * 72); | 59 DECLARE_ALIGNED_ARRAY(8, uint8_t, temp, 64 * 72); |
58 int intermediate_height = h + 7; | 60 int intermediate_height = h + 7; |
59 | 61 |
60 if (x_step_q4 != 16 || y_step_q4 != 16) | 62 if (x_step_q4 != 16 || y_step_q4 != 16) { |
61 return vp9_convolve8_avg_c(src, src_stride, | 63 vp9_convolve8_avg_c(src, src_stride, |
62 dst, dst_stride, | 64 dst, dst_stride, |
63 filter_x, x_step_q4, | 65 filter_x, x_step_q4, |
64 filter_y, y_step_q4, | 66 filter_y, y_step_q4, |
65 w, h); | 67 w, h); |
| 68 return; |
| 69 } |
66 | 70 |
67 /* This implementation has the same issues as above. In addition, we only want | 71 /* This implementation has the same issues as above. In addition, we only want |
68 * to average the values after both passes. | 72 * to average the values after both passes. |
69 */ | 73 */ |
70 vp9_convolve8_horiz_neon(src - src_stride * 3, src_stride, | 74 vp9_convolve8_horiz_neon(src - src_stride * 3, src_stride, |
71 temp, 64, | 75 temp, 64, |
72 filter_x, x_step_q4, filter_y, y_step_q4, | 76 filter_x, x_step_q4, filter_y, y_step_q4, |
73 w, intermediate_height); | 77 w, intermediate_height); |
74 vp9_convolve8_avg_vert_neon(temp + 64 * 3, | 78 vp9_convolve8_avg_vert_neon(temp + 64 * 3, |
75 64, dst, dst_stride, | 79 64, dst, dst_stride, |
76 filter_x, x_step_q4, filter_y, y_step_q4, | 80 filter_x, x_step_q4, filter_y, y_step_q4, |
77 w, h); | 81 w, h); |
78 } | 82 } |
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