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1 : | chl | 433 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - 8x8 block-based halfpel interpolation - headers | ||
5 : | * | ||
6 : | * Copyright(C) 2002 Peter Ross <pross@xvid.org> | ||
7 : | * | ||
8 : | edgomez | 651 | * This file is part of XviD, a free MPEG-4 video encoder/decoder |
9 : | chl | 433 | * |
10 : | edgomez | 651 | * XviD is free software; you can redistribute it and/or modify it |
11 : | * under the terms of the GNU General Public License as published by | ||
12 : | chl | 433 | * the Free Software Foundation; either version 2 of the License, or |
13 : | * (at your option) any later version. | ||
14 : | * | ||
15 : | * This program is distributed in the hope that it will be useful, | ||
16 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 : | * GNU General Public License for more details. | ||
19 : | * | ||
20 : | * You should have received a copy of the GNU General Public License | ||
21 : | * along with this program; if not, write to the Free Software | ||
22 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
23 : | * | ||
24 : | edgomez | 651 | * Under section 8 of the GNU General Public License, the copyright |
25 : | * holders of XVID explicitly forbid distribution in the following | ||
26 : | * countries: | ||
27 : | * | ||
28 : | * - Japan | ||
29 : | * - United States of America | ||
30 : | * | ||
31 : | * Linking XviD statically or dynamically with other modules is making a | ||
32 : | * combined work based on XviD. Thus, the terms and conditions of the | ||
33 : | * GNU General Public License cover the whole combination. | ||
34 : | * | ||
35 : | * As a special exception, the copyright holders of XviD give you | ||
36 : | * permission to link XviD with independent modules that communicate with | ||
37 : | * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
38 : | * license terms of these independent modules, and to copy and distribute | ||
39 : | * the resulting combined work under terms of your choice, provided that | ||
40 : | * every copy of the combined work is accompanied by a complete copy of | ||
41 : | * the source code of XviD (the version of XviD used to produce the | ||
42 : | * combined work), being distributed under the terms of the GNU General | ||
43 : | * Public License plus this exception. An independent module is a module | ||
44 : | * which is not derived from or based on XviD. | ||
45 : | * | ||
46 : | * Note that people who make modified versions of XviD are not obligated | ||
47 : | * to grant this special exception for their modified versions; it is | ||
48 : | * their choice whether to do so. The GNU General Public License gives | ||
49 : | * permission to release a modified version without this exception; this | ||
50 : | * exception also makes it possible to release a modified version which | ||
51 : | * carries forward this exception. | ||
52 : | * | ||
53 : | edgomez | 677 | * $Id: interpolate8x8.h,v 1.8 2002-11-26 23:44:10 edgomez Exp $ |
54 : | edgomez | 651 | * |
55 : | chl | 433 | ****************************************************************************/ |
56 : | |||
57 : | Isibaar | 3 | #include "../utils/mem_transfer.h" |
58 : | |||
59 : | edgomez | 195 | typedef void (INTERPOLATE8X8) (uint8_t * const dst, |
60 : | const uint8_t * const src, | ||
61 : | const uint32_t stride, | ||
62 : | const uint32_t rounding); | ||
63 : | typedef INTERPOLATE8X8 *INTERPOLATE8X8_PTR; | ||
64 : | Isibaar | 3 | |
65 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h; | ||
66 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v; | ||
67 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_hv; | ||
68 : | |||
69 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_c; | ||
70 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_c; | ||
71 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_c; | ||
72 : | |||
73 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_mmx; | ||
74 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_mmx; | ||
75 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_mmx; | ||
76 : | |||
77 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_xmm; | ||
78 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_xmm; | ||
79 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_xmm; | ||
80 : | |||
81 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_3dn; | ||
82 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_3dn; | ||
83 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dn; | ||
84 : | |||
85 : | Isibaar | 209 | INTERPOLATE8X8 interpolate8x8_halfpel_h_ia64; |
86 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; | ||
87 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; | ||
88 : | |||
89 : | Isibaar | 333 | void interpolate8x8_lowpass_h(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); |
90 : | void interpolate8x8_lowpass_v(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); | ||
91 : | void interpolate8x8_lowpass_hv(uint8_t *dst1, uint8_t *dst2, uint8_t *src, int32_t dst1_stride, int32_t dst2_stride, int32_t src_stride, int32_t rounding); | ||
92 : | void interpolate8x8_bilinear2(uint8_t *dst, uint8_t *src1, uint8_t *src2, int32_t dst_stride, int32_t src_stride, int32_t rounding); | ||
93 : | void interpolate8x8_bilinear4(uint8_t *dst, uint8_t *src1, uint8_t *src2, uint8_t *src3, uint8_t *src4, int32_t stride, int32_t rounding); | ||
94 : | |||
95 : | void interpolate8x8_c(uint8_t * const dst, | ||
96 : | const uint8_t * const src, | ||
97 : | const uint32_t x, | ||
98 : | const uint32_t y, | ||
99 : | const uint32_t stride); | ||
100 : | |||
101 : | edgomez | 195 | static __inline void |
102 : | interpolate8x8_switch(uint8_t * const cur, | ||
103 : | const uint8_t * const refn, | ||
104 : | const uint32_t x, | ||
105 : | const uint32_t y, | ||
106 : | const int32_t dx, | ||
107 : | const int dy, | ||
108 : | const uint32_t stride, | ||
109 : | const uint32_t rounding) | ||
110 : | Isibaar | 3 | { |
111 : | int32_t ddx, ddy; | ||
112 : | |||
113 : | edgomez | 677 | switch (((dx & 1) << 1) + (dy & 1)) /* ((dx%2)?2:0)+((dy%2)?1:0) */ |
114 : | edgomez | 195 | { |
115 : | case 0: | ||
116 : | ddx = dx / 2; | ||
117 : | ddy = dy / 2; | ||
118 : | transfer8x8_copy(cur + y * stride + x, | ||
119 : | Isibaar | 209 | refn + (int)((y + ddy) * stride + x + ddx), stride); |
120 : | Isibaar | 3 | break; |
121 : | |||
122 : | edgomez | 195 | case 1: |
123 : | ddx = dx / 2; | ||
124 : | ddy = (dy - 1) / 2; | ||
125 : | interpolate8x8_halfpel_v(cur + y * stride + x, | ||
126 : | Isibaar | 209 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
127 : | edgomez | 195 | rounding); |
128 : | Isibaar | 3 | break; |
129 : | |||
130 : | edgomez | 195 | case 2: |
131 : | ddx = (dx - 1) / 2; | ||
132 : | ddy = dy / 2; | ||
133 : | interpolate8x8_halfpel_h(cur + y * stride + x, | ||
134 : | Isibaar | 209 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
135 : | edgomez | 195 | rounding); |
136 : | Isibaar | 3 | break; |
137 : | |||
138 : | edgomez | 195 | default: |
139 : | ddx = (dx - 1) / 2; | ||
140 : | ddy = (dy - 1) / 2; | ||
141 : | interpolate8x8_halfpel_hv(cur + y * stride + x, | ||
142 : | Isibaar | 209 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
143 : | edgomez | 195 | rounding); |
144 : | Isibaar | 3 | break; |
145 : | edgomez | 195 | } |
146 : | Isibaar | 3 | } |
147 : | chenm001 | 156 | |
148 : | |||
149 : | Isibaar | 333 | static __inline void interpolate8x8_quarterpel(uint8_t * const cur, |
150 : | uint8_t * const refn, | ||
151 : | const uint32_t x, const uint32_t y, | ||
152 : | const int32_t dx, const int dy, | ||
153 : | const uint32_t stride, | ||
154 : | const uint32_t rounding) | ||
155 : | { | ||
156 : | const int32_t xRef = x*4 + dx; | ||
157 : | const int32_t yRef = y*4 + dy; | ||
158 : | |||
159 : | uint8_t *src, *dst; | ||
160 : | int32_t x_int, y_int, x_frac, y_frac; | ||
161 : | |||
162 : | uint8_t halfpel_h[72]; | ||
163 : | uint8_t halfpel_v[64]; | ||
164 : | uint8_t halfpel_hv[64]; | ||
165 : | |||
166 : | x_int = xRef/4; | ||
167 : | if (xRef < 0 && xRef % 4) | ||
168 : | x_int--; | ||
169 : | |||
170 : | x_frac = xRef - (4*x_int); | ||
171 : | |||
172 : | y_int = yRef/4; | ||
173 : | if (yRef < 0 && yRef % 4) | ||
174 : | y_int--; | ||
175 : | |||
176 : | y_frac = yRef - (4*y_int); | ||
177 : | |||
178 : | src = refn + y_int * stride + x_int; | ||
179 : | dst = cur + y * stride + x; | ||
180 : | |||
181 : | switch((y_frac << 2) | (x_frac)) { | ||
182 : | |||
183 : | case 0: | ||
184 : | transfer8x8_copy(dst, src, stride); | ||
185 : | break; | ||
186 : | |||
187 : | case 1: | ||
188 : | interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); | ||
189 : | interpolate8x8_bilinear2(dst, src, halfpel_h, stride, stride, rounding); | ||
190 : | break; | ||
191 : | |||
192 : | case 2: | ||
193 : | interpolate8x8_lowpass_h(dst, src, stride, stride, rounding); | ||
194 : | break; | ||
195 : | |||
196 : | case 3: | ||
197 : | interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); | ||
198 : | interpolate8x8_bilinear2(dst, src+1, halfpel_h, stride, stride, rounding); | ||
199 : | break; | ||
200 : | |||
201 : | case 4: | ||
202 : | interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); | ||
203 : | interpolate8x8_bilinear2(dst, src, halfpel_v, stride, stride, rounding); | ||
204 : | break; | ||
205 : | |||
206 : | case 5: | ||
207 : | interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); | ||
208 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
209 : | interpolate8x8_bilinear4(dst, src, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); | ||
210 : | break; | ||
211 : | |||
212 : | case 6: | ||
213 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
214 : | interpolate8x8_bilinear2(dst, halfpel_h, halfpel_hv, stride, 8, 1-rounding); | ||
215 : | break; | ||
216 : | |||
217 : | case 7: | ||
218 : | interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); | ||
219 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
220 : | interpolate8x8_bilinear4(dst, src+1, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); | ||
221 : | break; | ||
222 : | |||
223 : | case 8: | ||
224 : | interpolate8x8_lowpass_v(dst, src, stride, stride, rounding); | ||
225 : | break; | ||
226 : | |||
227 : | case 9: | ||
228 : | interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, 16-rounding); | ||
229 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
230 : | interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); | ||
231 : | break; | ||
232 : | |||
233 : | case 10: | ||
234 : | interpolate8x8_lowpass_hv(dst, halfpel_h, src, stride, 8, stride, rounding); | ||
235 : | break; | ||
236 : | |||
237 : | case 11: | ||
238 : | interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); | ||
239 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
240 : | interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); | ||
241 : | break; | ||
242 : | |||
243 : | case 12: | ||
244 : | interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); | ||
245 : | interpolate8x8_bilinear2(dst, src+stride, halfpel_v, stride, stride, rounding); | ||
246 : | break; | ||
247 : | |||
248 : | case 13: | ||
249 : | interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); | ||
250 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
251 : | interpolate8x8_bilinear4(dst, src+stride, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); | ||
252 : | break; | ||
253 : | |||
254 : | case 14: | ||
255 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
256 : | interpolate8x8_bilinear2(dst, halfpel_h+8, halfpel_hv, stride, 8, rounding); | ||
257 : | break; | ||
258 : | |||
259 : | case 15: | ||
260 : | interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, rounding); | ||
261 : | interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); | ||
262 : | interpolate8x8_bilinear4(dst, src+stride+1, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); | ||
263 : | break; | ||
264 : | } | ||
265 : | chl | 433 | } |
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