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
copy_and_extend_plane(const uint8_t * src,int src_pitch,uint8_t * dst,int dst_pitch,int w,int h,int extend_top,int extend_left,int extend_bottom,int extend_right)18 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 const uint8_t *src_ptr1 = src;
26 const uint8_t *src_ptr2 = src + w - 1;
27 uint8_t *dst_ptr1 = dst - extend_left;
28 uint8_t *dst_ptr2 = dst + w;
29
30 for (i = 0; i < h; i++) {
31 memset(dst_ptr1, src_ptr1[0], extend_left);
32 memcpy(dst_ptr1 + extend_left, src_ptr1, w);
33 memset(dst_ptr2, src_ptr2[0], extend_right);
34 src_ptr1 += src_pitch;
35 src_ptr2 += src_pitch;
36 dst_ptr1 += dst_pitch;
37 dst_ptr2 += dst_pitch;
38 }
39
40 // Now copy the top and bottom lines into each line of the respective
41 // borders
42 src_ptr1 = dst - extend_left;
43 src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
44 dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
45 dst_ptr2 = dst + dst_pitch * (h)-extend_left;
46 linesize = extend_left + extend_right + w;
47
48 for (i = 0; i < extend_top; i++) {
49 memcpy(dst_ptr1, src_ptr1, linesize);
50 dst_ptr1 += dst_pitch;
51 }
52
53 for (i = 0; i < extend_bottom; i++) {
54 memcpy(dst_ptr2, src_ptr2, linesize);
55 dst_ptr2 += dst_pitch;
56 }
57 }
58
59 #if CONFIG_VP9_HIGHBITDEPTH
highbd_copy_and_extend_plane(const uint8_t * src8,int src_pitch,uint8_t * dst8,int dst_pitch,int w,int h,int extend_top,int extend_left,int extend_bottom,int extend_right)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
vp9_copy_and_extend_frame(const YV12_BUFFER_CONFIG * src,YV12_BUFFER_CONFIG * dst)104 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 const int et_y = 16;
109 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 const int er_y =
114 VPXMAX(src->y_width + 16, ALIGN_POWER_OF_TWO(src->y_width, 6)) -
115 src->y_crop_width;
116 const int eb_y =
117 VPXMAX(src->y_height + 16, ALIGN_POWER_OF_TWO(src->y_height, 6)) -
118 src->y_crop_height;
119 const int uv_width_subsampling = (src->uv_width != src->y_width);
120 const int uv_height_subsampling = (src->uv_height != src->y_height);
121 const int et_uv = et_y >> uv_height_subsampling;
122 const int el_uv = el_y >> uv_width_subsampling;
123 const int eb_uv = eb_y >> uv_height_subsampling;
124 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 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 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 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 }
155
vp9_copy_and_extend_frame_with_rect(const YV12_BUFFER_CONFIG * src,YV12_BUFFER_CONFIG * dst,int srcy,int srcx,int srch,int srcw)156 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 const int et_y = srcy ? 0 : dst->border;
161 const int el_y = srcx ? 0 : dst->border;
162 const int eb_y = srcy + srch != src->y_height
163 ? 0
164 : dst->border + dst->y_height - src->y_height;
165 const int er_y = srcx + srcw != src->y_width
166 ? 0
167 : dst->border + dst->y_width - src->y_width;
168 const int src_y_offset = srcy * src->y_stride + srcx;
169 const int dst_y_offset = srcy * dst->y_stride + srcx;
170
171 const int et_uv = ROUND_POWER_OF_TWO(et_y, 1);
172 const int el_uv = ROUND_POWER_OF_TWO(el_y, 1);
173 const int eb_uv = ROUND_POWER_OF_TWO(eb_y, 1);
174 const int er_uv = ROUND_POWER_OF_TWO(er_y, 1);
175 const int src_uv_offset = ((srcy * src->uv_stride) >> 1) + (srcx >> 1);
176 const int dst_uv_offset = ((srcy * dst->uv_stride) >> 1) + (srcx >> 1);
177 const int srch_uv = ROUND_POWER_OF_TWO(srch, 1);
178 const int srcw_uv = ROUND_POWER_OF_TWO(srcw, 1);
179
180 copy_and_extend_plane(src->y_buffer + src_y_offset, src->y_stride,
181 dst->y_buffer + dst_y_offset, dst->y_stride, srcw, srch,
182 et_y, el_y, eb_y, er_y);
183
184 copy_and_extend_plane(src->u_buffer + src_uv_offset, src->uv_stride,
185 dst->u_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
186 srch_uv, et_uv, el_uv, eb_uv, er_uv);
187
188 copy_and_extend_plane(src->v_buffer + src_uv_offset, src->uv_stride,
189 dst->v_buffer + dst_uv_offset, dst->uv_stride, srcw_uv,
190 srch_uv, et_uv, el_uv, eb_uv, er_uv);
191 }
192