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
12 /****************************************************************************
13 *
14 * Module Title : yv12extend.c
15 *
16 * Description :
17 *
18 ***************************************************************************/
19
20 /****************************************************************************
21 * Header Files
22 ****************************************************************************/
23 #include "vpx_scale/yv12config.h"
24 #include "vpx_mem/vpx_mem.h"
25 #include <nitro.h>
26 #include <nitro/mi.h>
27 #include <nitro/itcm_begin.h>
28
29 //---- DMA Number
30 #define DMA_NO 3
31
32 /****************************************************************************
33 * Exports
34 ****************************************************************************/
35
36 /****************************************************************************
37 *
38 ****************************************************************************/
39 void
vp8_yv12_extend_frame_borders(YV12_BUFFER_CONFIG * ybf)40 vp8_yv12_extend_frame_borders(YV12_BUFFER_CONFIG *ybf)
41 {
42 int i;
43 unsigned char *src_ptr1, *src_ptr2;
44 unsigned char *dest_ptr1, *dest_ptr2;
45
46 unsigned int Border;
47 int plane_stride;
48 int plane_height;
49 int plane_width;
50
51 /***********/
52 /* Y Plane */
53 /***********/
54 Border = ybf->border;
55 plane_stride = ybf->y_stride;
56 plane_height = ybf->y_height;
57 plane_width = ybf->y_width;
58
59 // copy the left and right most columns out
60 src_ptr1 = ybf->y_buffer;
61 src_ptr2 = src_ptr1 + plane_width - 1;
62 dest_ptr1 = src_ptr1 - Border;
63 dest_ptr2 = src_ptr2 + 1;
64
65 for (i = 0; i < plane_height; i++)
66 {
67 mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
68 mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
69 src_ptr1 += plane_stride;
70 src_ptr2 += plane_stride;
71 dest_ptr1 += plane_stride;
72 dest_ptr2 += plane_stride;
73 }
74
75 // Now copy the top and bottom source lines into each line of the respective borders
76 src_ptr1 = ybf->y_buffer - Border;
77 src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
78 dest_ptr1 = src_ptr1 - (Border * plane_stride);
79 dest_ptr2 = src_ptr2 + plane_stride;
80
81 for (i = 0; i < (int)Border; i++)
82 {
83 mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
84 mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
85 dest_ptr1 += plane_stride;
86 dest_ptr2 += plane_stride;
87 }
88
89 plane_stride /= 2;
90 plane_height /= 2;
91 plane_width /= 2;
92 Border /= 2;
93
94 /***********/
95 /* U Plane */
96 /***********/
97
98 // copy the left and right most columns out
99 src_ptr1 = ybf->u_buffer;
100 src_ptr2 = src_ptr1 + plane_width - 1;
101 dest_ptr1 = src_ptr1 - Border;
102 dest_ptr2 = src_ptr2 + 1;
103
104 for (i = 0; i < plane_height; i++)
105 {
106 mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
107 mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
108 src_ptr1 += plane_stride;
109 src_ptr2 += plane_stride;
110 dest_ptr1 += plane_stride;
111 dest_ptr2 += plane_stride;
112 }
113
114 // Now copy the top and bottom source lines into each line of the respective borders
115 src_ptr1 = ybf->u_buffer - Border;
116 src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
117 dest_ptr1 = src_ptr1 - (Border * plane_stride);
118 dest_ptr2 = src_ptr2 + plane_stride;
119
120 for (i = 0; i < (int)(Border); i++)
121 {
122 mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
123 mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
124 dest_ptr1 += plane_stride;
125 dest_ptr2 += plane_stride;
126 }
127
128 /***********/
129 /* V Plane */
130 /***********/
131
132 // copy the left and right most columns out
133 src_ptr1 = ybf->v_buffer;
134 src_ptr2 = src_ptr1 + plane_width - 1;
135 dest_ptr1 = src_ptr1 - Border;
136 dest_ptr2 = src_ptr2 + 1;
137
138 for (i = 0; i < plane_height; i++)
139 {
140 mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
141 mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
142 src_ptr1 += plane_stride;
143 src_ptr2 += plane_stride;
144 dest_ptr1 += plane_stride;
145 dest_ptr2 += plane_stride;
146 }
147
148 // Now copy the top and bottom source lines into each line of the respective borders
149 src_ptr1 = ybf->v_buffer - Border;
150 src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
151 dest_ptr1 = src_ptr1 - (Border * plane_stride);
152 dest_ptr2 = src_ptr2 + plane_stride;
153
154 for (i = 0; i < (int)(Border); i++)
155 {
156 mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
157 mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
158 dest_ptr1 += plane_stride;
159 dest_ptr2 += plane_stride;
160 }
161 }
162
163
164
165 /****************************************************************************
166 *
167 * ROUTINE : vp8_yv12_copy_frame
168 *
169 * INPUTS :
170 *
171 * OUTPUTS : None.
172 *
173 * RETURNS : void
174 *
175 * FUNCTION : Copies the source image into the destination image and
176 * updates the destination's UMV borders.
177 *
178 * SPECIAL NOTES : The frames are assumed to be identical in size.
179 *
180 ****************************************************************************/
181 void
vp8_yv12_copy_frame(YV12_BUFFER_CONFIG * src_ybc,YV12_BUFFER_CONFIG * dst_ybc)182 vp8_yv12_copy_frame(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc)
183 {
184 int yplane_size = (src_ybc->y_height + 2 * src_ybc->border) * (src_ybc->y_stride);
185 int mem_size = (yplane_size * 3 / 2) + (src_ybc->y_stride * 2);
186
187 mi_cpu_copy_fast(src_ybc->buffer_alloc, dst_ybc->buffer_alloc, mem_size);
188
189 /* unsigned char *src_y, *dst_y;
190 unsigned char *src_u, *dst_u;
191 unsigned char *src_v, *dst_v;
192
193 int yheight, uv_height;
194 int ystride, uv_stride;
195 int border;
196 int yoffset, uvoffset;
197
198 border = src_ybc->border;
199 yheight = src_ybc->y_height;
200 uv_height = src_ybc->uv_height;
201
202 ystride = src_ybc->y_stride;
203 uv_stride = src_ybc->uv_stride;
204
205 yoffset = border * (ystride + 1);
206 uvoffset = border/2 * (uv_stride + 1);
207
208 src_y = src_ybc->y_buffer - yoffset;
209 dst_y = dst_ybc->y_buffer - yoffset;
210 src_u = src_ybc->u_buffer - uvoffset;
211 dst_u = dst_ybc->u_buffer - uvoffset;
212 src_v = src_ybc->v_buffer - uvoffset;
213 dst_v = dst_ybc->v_buffer - uvoffset;
214
215 mi_cpu_copy_fast (src_y, dst_y, ystride * (yheight + 2 * border));
216 mi_cpu_copy_fast (src_u, dst_u, uv_stride * (uv_height + border));
217 mi_cpu_copy_fast (src_v, dst_v, uv_stride * (uv_height + border));
218 */
219 }
220
221 #include <nitro/itcm_end.h>
222