Line data Source code
1 : /*
2 : * Copyright (c) 2010 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 "vpx_dsp/vpx_dsp_common.h"
12 : #include "vpx_mem/vpx_mem.h"
13 : #include "vpx_ports/mem.h"
14 :
15 : #include "vp9/common/vp9_common.h"
16 : #include "vp9/encoder/vp9_extend.h"
17 :
18 0 : static void copy_and_extend_plane(const uint8_t *src, int src_pitch,
19 : uint8_t *dst, int dst_pitch, int w, int h,
20 : int extend_top, int extend_left,
21 : int extend_bottom, int extend_right) {
22 : int i, linesize;
23 :
24 : // copy the left and right most columns out
25 0 : const uint8_t *src_ptr1 = src;
26 0 : const uint8_t *src_ptr2 = src + w - 1;
27 0 : uint8_t *dst_ptr1 = dst - extend_left;
28 0 : uint8_t *dst_ptr2 = dst + w;
29 :
30 0 : for (i = 0; i < h; i++) {
31 0 : memset(dst_ptr1, src_ptr1[0], extend_left);
32 0 : memcpy(dst_ptr1 + extend_left, src_ptr1, w);
33 0 : memset(dst_ptr2, src_ptr2[0], extend_right);
34 0 : src_ptr1 += src_pitch;
35 0 : src_ptr2 += src_pitch;
36 0 : dst_ptr1 += dst_pitch;
37 0 : dst_ptr2 += dst_pitch;
38 : }
39 :
40 : // Now copy the top and bottom lines into each line of the respective
41 : // borders
42 0 : src_ptr1 = dst - extend_left;
43 0 : src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
44 0 : dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
45 0 : dst_ptr2 = dst + dst_pitch * (h)-extend_left;
46 0 : linesize = extend_left + extend_right + w;
47 :
48 0 : for (i = 0; i < extend_top; i++) {
49 0 : memcpy(dst_ptr1, src_ptr1, linesize);
50 0 : dst_ptr1 += dst_pitch;
51 : }
52 :
53 0 : for (i = 0; i < extend_bottom; i++) {
54 0 : memcpy(dst_ptr2, src_ptr2, linesize);
55 0 : dst_ptr2 += dst_pitch;
56 : }
57 0 : }
58 :
59 : #if CONFIG_VP9_HIGHBITDEPTH
60 : static void highbd_copy_and_extend_plane(const uint8_t *src8, int src_pitch,
61 : uint8_t *dst8, int dst_pitch, int w,
62 : int h, int extend_top, int extend_left,
63 : int extend_bottom, int extend_right) {
64 : int i, linesize;
65 : uint16_t *src = CONVERT_TO_SHORTPTR(src8);
66 : uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
67 :
68 : // copy the left and right most columns out
69 : const uint16_t *src_ptr1 = src;
70 : const uint16_t *src_ptr2 = src + w - 1;
71 : uint16_t *dst_ptr1 = dst - extend_left;
72 : uint16_t *dst_ptr2 = dst + w;
73 :
74 : for (i = 0; i < h; i++) {
75 : vpx_memset16(dst_ptr1, src_ptr1[0], extend_left);
76 : memcpy(dst_ptr1 + extend_left, src_ptr1, w * sizeof(src_ptr1[0]));
77 : vpx_memset16(dst_ptr2, src_ptr2[0], extend_right);
78 : src_ptr1 += src_pitch;
79 : src_ptr2 += src_pitch;
80 : dst_ptr1 += dst_pitch;
81 : dst_ptr2 += dst_pitch;
82 : }
83 :
84 : // Now copy the top and bottom lines into each line of the respective
85 : // borders
86 : src_ptr1 = dst - extend_left;
87 : src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
88 : dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
89 : dst_ptr2 = dst + dst_pitch * (h)-extend_left;
90 : linesize = extend_left + extend_right + w;
91 :
92 : for (i = 0; i < extend_top; i++) {
93 : memcpy(dst_ptr1, src_ptr1, linesize * sizeof(src_ptr1[0]));
94 : dst_ptr1 += dst_pitch;
95 : }
96 :
97 : for (i = 0; i < extend_bottom; i++) {
98 : memcpy(dst_ptr2, src_ptr2, linesize * sizeof(src_ptr2[0]));
99 : dst_ptr2 += dst_pitch;
100 : }
101 : }
102 : #endif // CONFIG_VP9_HIGHBITDEPTH
103 :
104 0 : void vp9_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
105 : YV12_BUFFER_CONFIG *dst) {
106 : // Extend src frame in buffer
107 : // Altref filtering assumes 16 pixel extension
108 0 : const int et_y = 16;
109 0 : const int el_y = 16;
110 : // Motion estimation may use src block variance with the block size up
111 : // to 64x64, so the right and bottom need to be extended to 64 multiple
112 : // or up to 16, whichever is greater.
113 0 : const int er_y =
114 0 : VPXMAX(src->y_width + 16, ALIGN_POWER_OF_TWO(src->y_width, 6)) -
115 0 : src->y_crop_width;
116 0 : const int eb_y =
117 0 : VPXMAX(src->y_height + 16, ALIGN_POWER_OF_TWO(src->y_height, 6)) -
118 0 : src->y_crop_height;
119 0 : const int uv_width_subsampling = (src->uv_width != src->y_width);
120 0 : const int uv_height_subsampling = (src->uv_height != src->y_height);
121 0 : const int et_uv = et_y >> uv_height_subsampling;
122 0 : const int el_uv = el_y >> uv_width_subsampling;
123 0 : const int eb_uv = eb_y >> uv_height_subsampling;
124 0 : const int er_uv = er_y >> uv_width_subsampling;
125 :
126 : #if CONFIG_VP9_HIGHBITDEPTH
127 : if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
128 : highbd_copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
129 : dst->y_stride, src->y_crop_width,
130 : src->y_crop_height, et_y, el_y, eb_y, er_y);
131 :
132 : highbd_copy_and_extend_plane(
133 : src->u_buffer, src->uv_stride, dst->u_buffer, dst->uv_stride,
134 : src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
135 :
136 : highbd_copy_and_extend_plane(
137 : src->v_buffer, src->uv_stride, dst->v_buffer, dst->uv_stride,
138 : src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
139 : return;
140 : }
141 : #endif // CONFIG_VP9_HIGHBITDEPTH
142 :
143 0 : copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
144 : dst->y_stride, src->y_crop_width, src->y_crop_height,
145 : et_y, el_y, eb_y, er_y);
146 :
147 0 : copy_and_extend_plane(src->u_buffer, src->uv_stride, dst->u_buffer,
148 : dst->uv_stride, src->uv_crop_width, src->uv_crop_height,
149 : et_uv, el_uv, eb_uv, er_uv);
150 :
151 0 : copy_and_extend_plane(src->v_buffer, src->uv_stride, dst->v_buffer,
152 : dst->uv_stride, src->uv_crop_width, src->uv_crop_height,
153 : et_uv, el_uv, eb_uv, er_uv);
154 0 : }
155 :
156 0 : void vp9_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG *src,
157 : YV12_BUFFER_CONFIG *dst, int srcy,
158 : int srcx, int srch, int srcw) {
159 : // If the side is not touching the bounder then don't extend.
160 0 : const int et_y = srcy ? 0 : dst->border;
161 0 : const int el_y = srcx ? 0 : dst->border;
162 0 : const int eb_y = srcy + srch != src->y_height
163 : ? 0
164 0 : : dst->border + dst->y_height - src->y_height;
165 0 : const int er_y = srcx + srcw != src->y_width
166 : ? 0
167 0 : : dst->border + dst->y_width - src->y_width;
168 0 : const int src_y_offset = srcy * src->y_stride + srcx;
169 0 : const int dst_y_offset = srcy * dst->y_stride + srcx;
170 :
171 0 : const int et_uv = ROUND_POWER_OF_TWO(et_y, 1);
172 0 : const int el_uv = ROUND_POWER_OF_TWO(el_y, 1);
173 0 : const int eb_uv = ROUND_POWER_OF_TWO(eb_y, 1);
174 0 : const int er_uv = ROUND_POWER_OF_TWO(er_y, 1);
175 0 : const int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
176 0 : const int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
177 0 : const int srch_uv = ROUND_POWER_OF_TWO(srch, 1);
178 0 : const int srcw_uv = ROUND_POWER_OF_TWO(srcw, 1);
179 :
180 0 : copy_and_extend_plane(src->y_buffer + src_y_offset, src->y_stride,
181 0 : dst->y_buffer + dst_y_offset, dst->y_stride, srcw, srch,
182 : et_y, el_y, eb_y, er_y);
183 :
184 0 : copy_and_extend_plane(src->u_buffer + src_uv_offset, src->uv_stride,
185 0 : dst->u_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
186 : srch_uv, et_uv, el_uv, eb_uv, er_uv);
187 :
188 0 : copy_and_extend_plane(src->v_buffer + src_uv_offset, src->uv_stride,
189 0 : dst->v_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
190 : srch_uv, et_uv, el_uv, eb_uv, er_uv);
191 0 : }
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