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1 : | edgomez | 1382 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Interpolation related header - | ||
5 : | * | ||
6 : | * Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> | ||
7 : | * | ||
8 : | * This program is free software ; you can redistribute it and/or modify | ||
9 : | * it under the terms of the GNU General Public License as published by | ||
10 : | * the Free Software Foundation ; either version 2 of the License, or | ||
11 : | * (at your option) any later version. | ||
12 : | * | ||
13 : | * This program is distributed in the hope that it will be useful, | ||
14 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
15 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 : | * GNU General Public License for more details. | ||
17 : | * | ||
18 : | * You should have received a copy of the GNU General Public License | ||
19 : | * along with this program ; if not, write to the Free Software | ||
20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 : | * | ||
22 : | Isibaar | 1795 | * $Id: interpolate8x8.h,v 1.17 2008-11-26 01:04:34 Isibaar Exp $ |
23 : | edgomez | 1382 | * |
24 : | ****************************************************************************/ | ||
25 : | |||
26 : | edgomez | 851 | #ifndef _INTERPOLATE8X8_H_ |
27 : | #define _INTERPOLATE8X8_H_ | ||
28 : | chl | 433 | |
29 : | Isibaar | 3 | #include "../utils/mem_transfer.h" |
30 : | |||
31 : | edgomez | 195 | typedef void (INTERPOLATE8X8) (uint8_t * const dst, |
32 : | const uint8_t * const src, | ||
33 : | const uint32_t stride, | ||
34 : | const uint32_t rounding); | ||
35 : | typedef INTERPOLATE8X8 *INTERPOLATE8X8_PTR; | ||
36 : | Isibaar | 3 | |
37 : | suxen_drol | 1632 | typedef void (INTERPOLATE8X4) (uint8_t * const dst, |
38 : | const uint8_t * const src, | ||
39 : | const uint32_t stride, | ||
40 : | const uint32_t rounding); | ||
41 : | typedef INTERPOLATE8X4 *INTERPOLATE8X4_PTR; | ||
42 : | |||
43 : | edgomez | 851 | typedef void (INTERPOLATE8X8_AVG2) (uint8_t *dst, |
44 : | const uint8_t *src1, | ||
45 : | const uint8_t *src2, | ||
46 : | const uint32_t stride, | ||
47 : | const uint32_t rounding, | ||
48 : | const uint32_t height); | ||
49 : | typedef INTERPOLATE8X8_AVG2 *INTERPOLATE8X8_AVG2_PTR; | ||
50 : | |||
51 : | typedef void (INTERPOLATE8X8_AVG4) (uint8_t *dst, | ||
52 : | const uint8_t *src1, | ||
53 : | const uint8_t *src2, | ||
54 : | const uint8_t *src3, | ||
55 : | const uint8_t *src4, | ||
56 : | const uint32_t stride, | ||
57 : | const uint32_t rounding); | ||
58 : | typedef INTERPOLATE8X8_AVG4 *INTERPOLATE8X8_AVG4_PTR; | ||
59 : | |||
60 : | typedef void (INTERPOLATE_LOWPASS) (uint8_t *dst, | ||
61 : | uint8_t *src, | ||
62 : | int32_t stride, | ||
63 : | int32_t rounding); | ||
64 : | |||
65 : | typedef INTERPOLATE_LOWPASS *INTERPOLATE_LOWPASS_PTR; | ||
66 : | |||
67 : | typedef void (INTERPOLATE_LOWPASS_HV) (uint8_t *dst1, | ||
68 : | uint8_t *dst2, | ||
69 : | uint8_t *src, | ||
70 : | int32_t stride, | ||
71 : | int32_t rounding); | ||
72 : | |||
73 : | typedef INTERPOLATE_LOWPASS_HV *INTERPOLATE_LOWPASS_HV_PTR; | ||
74 : | |||
75 : | typedef void (INTERPOLATE8X8_6TAP_LOWPASS) (uint8_t *dst, | ||
76 : | uint8_t *src, | ||
77 : | int32_t stride, | ||
78 : | int32_t rounding); | ||
79 : | |||
80 : | typedef INTERPOLATE8X8_6TAP_LOWPASS *INTERPOLATE8X8_6TAP_LOWPASS_PTR; | ||
81 : | |||
82 : | edgomez | 1530 | /* These function do: dst = interpolate(src) */ |
83 : | Isibaar | 3 | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h; |
84 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v; | ||
85 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_hv; | ||
86 : | |||
87 : | suxen_drol | 1632 | extern INTERPOLATE8X4_PTR interpolate8x4_halfpel_h; |
88 : | extern INTERPOLATE8X4_PTR interpolate8x4_halfpel_v; | ||
89 : | extern INTERPOLATE8X4_PTR interpolate8x4_halfpel_hv; | ||
90 : | |||
91 : | edgomez | 1530 | /* These functions do: dst = (dst+interpolate(src) + 1)/2 |
92 : | * Suitable for direct/interpolated bvop prediction block | ||
93 : | * building w/o the need for intermediate interpolated result | ||
94 : | * storing/reading | ||
95 : | * NB: the rounding applies to the interpolation, but not | ||
96 : | * the averaging step which will always use rounding=0 */ | ||
97 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_add; | ||
98 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h_add; | ||
99 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v_add; | ||
100 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_hv_add; | ||
101 : | |||
102 : | edgomez | 851 | extern INTERPOLATE8X8_AVG2_PTR interpolate8x8_avg2; |
103 : | extern INTERPOLATE8X8_AVG4_PTR interpolate8x8_avg4; | ||
104 : | |||
105 : | extern INTERPOLATE_LOWPASS_PTR interpolate8x8_lowpass_h; | ||
106 : | extern INTERPOLATE_LOWPASS_PTR interpolate8x8_lowpass_v; | ||
107 : | |||
108 : | extern INTERPOLATE_LOWPASS_PTR interpolate16x16_lowpass_h; | ||
109 : | extern INTERPOLATE_LOWPASS_PTR interpolate16x16_lowpass_v; | ||
110 : | |||
111 : | extern INTERPOLATE_LOWPASS_HV_PTR interpolate8x8_lowpass_hv; | ||
112 : | extern INTERPOLATE_LOWPASS_HV_PTR interpolate16x16_lowpass_hv; | ||
113 : | |||
114 : | extern INTERPOLATE8X8_6TAP_LOWPASS_PTR interpolate8x8_6tap_lowpass_h; | ||
115 : | extern INTERPOLATE8X8_6TAP_LOWPASS_PTR interpolate8x8_6tap_lowpass_v; | ||
116 : | |||
117 : | Isibaar | 3 | INTERPOLATE8X8 interpolate8x8_halfpel_h_c; |
118 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_c; | ||
119 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_c; | ||
120 : | suxen_drol | 1632 | |
121 : | INTERPOLATE8X4 interpolate8x4_halfpel_h_c; | ||
122 : | INTERPOLATE8X4 interpolate8x4_halfpel_v_c; | ||
123 : | INTERPOLATE8X4 interpolate8x4_halfpel_hv_c; | ||
124 : | |||
125 : | edgomez | 1530 | INTERPOLATE8X8 interpolate8x8_halfpel_add_c; |
126 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_add_c; | ||
127 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_add_c; | ||
128 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_add_c; | ||
129 : | Isibaar | 3 | |
130 : | Isibaar | 1795 | #if defined(ARCH_IS_IA32) || defined(ARCH_IS_X86_64) |
131 : | Isibaar | 3 | INTERPOLATE8X8 interpolate8x8_halfpel_h_mmx; |
132 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_mmx; | ||
133 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_mmx; | ||
134 : | |||
135 : | suxen_drol | 1632 | INTERPOLATE8X4 interpolate8x4_halfpel_h_mmx; |
136 : | INTERPOLATE8X4 interpolate8x4_halfpel_v_mmx; | ||
137 : | INTERPOLATE8X4 interpolate8x4_halfpel_hv_mmx; | ||
138 : | |||
139 : | edgomez | 1530 | INTERPOLATE8X8 interpolate8x8_halfpel_add_mmx; |
140 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_add_mmx; | ||
141 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_add_mmx; | ||
142 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_add_mmx; | ||
143 : | |||
144 : | Isibaar | 3 | INTERPOLATE8X8 interpolate8x8_halfpel_h_xmm; |
145 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_xmm; | ||
146 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_xmm; | ||
147 : | |||
148 : | suxen_drol | 1632 | INTERPOLATE8X4 interpolate8x4_halfpel_h_xmm; |
149 : | INTERPOLATE8X4 interpolate8x4_halfpel_v_xmm; | ||
150 : | INTERPOLATE8X4 interpolate8x4_halfpel_hv_xmm; | ||
151 : | |||
152 : | edgomez | 1530 | INTERPOLATE8X8 interpolate8x8_halfpel_add_xmm; |
153 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_add_xmm; | ||
154 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_add_xmm; | ||
155 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_add_xmm; | ||
156 : | |||
157 : | Isibaar | 3 | INTERPOLATE8X8 interpolate8x8_halfpel_h_3dn; |
158 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_3dn; | ||
159 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dn; | ||
160 : | |||
161 : | suxen_drol | 1632 | INTERPOLATE8X4 interpolate8x4_halfpel_h_3dn; |
162 : | INTERPOLATE8X4 interpolate8x4_halfpel_v_3dn; | ||
163 : | INTERPOLATE8X4 interpolate8x4_halfpel_hv_3dn; | ||
164 : | |||
165 : | edgomez | 851 | INTERPOLATE8X8 interpolate8x8_halfpel_h_3dne; |
166 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_3dne; | ||
167 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dne; | ||
168 : | suxen_drol | 1632 | |
169 : | INTERPOLATE8X4 interpolate8x4_halfpel_h_3dne; | ||
170 : | INTERPOLATE8X4 interpolate8x4_halfpel_v_3dne; | ||
171 : | INTERPOLATE8X4 interpolate8x4_halfpel_hv_3dne; | ||
172 : | edgomez | 1382 | #endif |
173 : | edgomez | 851 | |
174 : | edgomez | 1382 | #ifdef ARCH_IS_IA64 |
175 : | Isibaar | 209 | INTERPOLATE8X8 interpolate8x8_halfpel_h_ia64; |
176 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; | ||
177 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; | ||
178 : | edgomez | 1382 | #endif |
179 : | Isibaar | 209 | |
180 : | edgomez | 1412 | #ifdef ARCH_IS_PPC |
181 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_altivec_c; | ||
182 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_altivec_c; | ||
183 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_altivec_c; | ||
184 : | edgomez | 1557 | |
185 : | INTERPOLATE8X8 interpolate8x8_halfpel_add_altivec_c; | ||
186 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_add_altivec_c; | ||
187 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_add_altivec_c; | ||
188 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_add_altivec_c; | ||
189 : | edgomez | 1412 | #endif |
190 : | |||
191 : | edgomez | 851 | INTERPOLATE8X8_AVG2 interpolate8x8_avg2_c; |
192 : | INTERPOLATE8X8_AVG4 interpolate8x8_avg4_c; | ||
193 : | Isibaar | 333 | |
194 : | Isibaar | 1795 | #if defined(ARCH_IS_IA32) || defined(ARCH_IS_X86_64) |
195 : | edgomez | 851 | INTERPOLATE8X8_AVG2 interpolate8x8_avg2_mmx; |
196 : | INTERPOLATE8X8_AVG4 interpolate8x8_avg4_mmx; | ||
197 : | edgomez | 1382 | #endif |
198 : | edgomez | 851 | |
199 : | edgomez | 1412 | #ifdef ARCH_IS_PPC |
200 : | INTERPOLATE8X8_AVG2 interpolate8x8_avg2_altivec_c; | ||
201 : | INTERPOLATE8X8_AVG4 interpolate8x8_avg4_altivec_c; | ||
202 : | #endif | ||
203 : | |||
204 : | edgomez | 851 | INTERPOLATE_LOWPASS interpolate8x8_lowpass_h_c; |
205 : | INTERPOLATE_LOWPASS interpolate8x8_lowpass_v_c; | ||
206 : | |||
207 : | INTERPOLATE_LOWPASS interpolate16x16_lowpass_h_c; | ||
208 : | INTERPOLATE_LOWPASS interpolate16x16_lowpass_v_c; | ||
209 : | |||
210 : | INTERPOLATE_LOWPASS_HV interpolate8x8_lowpass_hv_c; | ||
211 : | INTERPOLATE_LOWPASS_HV interpolate16x16_lowpass_hv_c; | ||
212 : | |||
213 : | INTERPOLATE8X8_6TAP_LOWPASS interpolate8x8_6tap_lowpass_h_c; | ||
214 : | INTERPOLATE8X8_6TAP_LOWPASS interpolate8x8_6tap_lowpass_v_c; | ||
215 : | |||
216 : | Isibaar | 1795 | #if defined(ARCH_IS_IA32) || defined(ARCH_IS_X86_64) |
217 : | edgomez | 851 | INTERPOLATE8X8_6TAP_LOWPASS interpolate8x8_6tap_lowpass_h_mmx; |
218 : | INTERPOLATE8X8_6TAP_LOWPASS interpolate8x8_6tap_lowpass_v_mmx; | ||
219 : | edgomez | 1382 | #endif |
220 : | edgomez | 851 | |
221 : | edgomez | 1412 | #ifdef ARCH_IS_PPC |
222 : | INTERPOLATE8X8_6TAP_LOWPASS interpolate8x8_6tap_lowpass_h_altivec_c; | ||
223 : | #endif | ||
224 : | |||
225 : | edgomez | 195 | static __inline void |
226 : | suxen_drol | 1632 | interpolate8x4_switch(uint8_t * const cur, |
227 : | const uint8_t * const refn, | ||
228 : | const uint32_t x, | ||
229 : | const uint32_t y, | ||
230 : | const int32_t dx, | ||
231 : | const int dy, | ||
232 : | const uint32_t stride, | ||
233 : | const uint32_t rounding) | ||
234 : | { | ||
235 : | |||
236 : | const uint8_t * const src = refn + (int)((y + (dy>>1)) * stride + x + (dx>>1)); | ||
237 : | uint8_t * const dst = cur + (int)(y * stride + x); | ||
238 : | |||
239 : | switch (((dx & 1) << 1) + (dy & 1)) | ||
240 : | { /* ((dx%2)?2:0)+((dy%2)?1:0) */ | ||
241 : | case 0: | ||
242 : | transfer8x4_copy(dst, src, stride); | ||
243 : | break; | ||
244 : | case 1: | ||
245 : | interpolate8x4_halfpel_v(dst, src, stride, rounding); | ||
246 : | break; | ||
247 : | case 2: | ||
248 : | interpolate8x4_halfpel_h(dst, src, stride, rounding); | ||
249 : | break; | ||
250 : | default: | ||
251 : | interpolate8x4_halfpel_hv(dst, src, stride, rounding); | ||
252 : | break; | ||
253 : | } | ||
254 : | } | ||
255 : | |||
256 : | static __inline void | ||
257 : | edgomez | 195 | interpolate8x8_switch(uint8_t * const cur, |
258 : | const uint8_t * const refn, | ||
259 : | const uint32_t x, | ||
260 : | const uint32_t y, | ||
261 : | const int32_t dx, | ||
262 : | const int dy, | ||
263 : | const uint32_t stride, | ||
264 : | const uint32_t rounding) | ||
265 : | Isibaar | 3 | { |
266 : | |||
267 : | edgomez | 1382 | const uint8_t * const src = refn + (int)((y + (dy>>1)) * stride + x + (dx>>1)); |
268 : | uint8_t * const dst = cur + (int)(y * stride + x); | ||
269 : | |||
270 : | switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */ | ||
271 : | edgomez | 195 | case 0: |
272 : | edgomez | 1382 | transfer8x8_copy(dst, src, stride); |
273 : | Isibaar | 3 | break; |
274 : | edgomez | 195 | case 1: |
275 : | edgomez | 1382 | interpolate8x8_halfpel_v(dst, src, stride, rounding); |
276 : | Isibaar | 3 | break; |
277 : | edgomez | 195 | case 2: |
278 : | edgomez | 1382 | interpolate8x8_halfpel_h(dst, src, stride, rounding); |
279 : | Isibaar | 3 | break; |
280 : | edgomez | 195 | default: |
281 : | edgomez | 1382 | interpolate8x8_halfpel_hv(dst, src, stride, rounding); |
282 : | Isibaar | 3 | break; |
283 : | edgomez | 195 | } |
284 : | Isibaar | 3 | } |
285 : | chenm001 | 156 | |
286 : | edgomez | 1530 | static __inline void |
287 : | interpolate8x8_add_switch(uint8_t * const cur, | ||
288 : | const uint8_t * const refn, | ||
289 : | const uint32_t x, | ||
290 : | const uint32_t y, | ||
291 : | const int32_t dx, | ||
292 : | const int dy, | ||
293 : | const uint32_t stride, | ||
294 : | const uint32_t rounding) | ||
295 : | { | ||
296 : | edgomez | 851 | |
297 : | edgomez | 1530 | const uint8_t * const src = refn + (int)((y + (dy>>1)) * stride + x + (dx>>1)); |
298 : | uint8_t * const dst = cur + (int)(y * stride + x); | ||
299 : | |||
300 : | switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */ | ||
301 : | case 0: | ||
302 : | interpolate8x8_halfpel_add(dst, src, stride, rounding); | ||
303 : | break; | ||
304 : | case 1: | ||
305 : | interpolate8x8_halfpel_v_add(dst, src, stride, rounding); | ||
306 : | break; | ||
307 : | case 2: | ||
308 : | interpolate8x8_halfpel_h_add(dst, src, stride, rounding); | ||
309 : | break; | ||
310 : | default: | ||
311 : | interpolate8x8_halfpel_hv_add(dst, src, stride, rounding); | ||
312 : | break; | ||
313 : | } | ||
314 : | } | ||
315 : | |||
316 : | edgomez | 851 | static __inline void |
317 : | interpolate16x16_switch(uint8_t * const cur, | ||
318 : | const uint8_t * const refn, | ||
319 : | const uint32_t x, | ||
320 : | const uint32_t y, | ||
321 : | const int32_t dx, | ||
322 : | const int dy, | ||
323 : | const uint32_t stride, | ||
324 : | const uint32_t rounding) | ||
325 : | { | ||
326 : | interpolate8x8_switch(cur, refn, x, y, dx, dy, stride, rounding); | ||
327 : | interpolate8x8_switch(cur, refn, x+8, y, dx, dy, stride, rounding); | ||
328 : | interpolate8x8_switch(cur, refn, x, y+8, dx, dy, stride, rounding); | ||
329 : | interpolate8x8_switch(cur, refn, x+8, y+8, dx, dy, stride, rounding); | ||
330 : | } | ||
331 : | |||
332 : | edgomez | 1530 | static __inline void |
333 : | interpolate16x16_add_switch(uint8_t * const cur, | ||
334 : | const uint8_t * const refn, | ||
335 : | const uint32_t x, | ||
336 : | const uint32_t y, | ||
337 : | const int32_t dx, | ||
338 : | const int dy, | ||
339 : | const uint32_t stride, | ||
340 : | const uint32_t rounding) | ||
341 : | { | ||
342 : | interpolate8x8_add_switch(cur, refn, x, y, dx, dy, stride, rounding); | ||
343 : | interpolate8x8_add_switch(cur, refn, x+8, y, dx, dy, stride, rounding); | ||
344 : | interpolate8x8_add_switch(cur, refn, x, y+8, dx, dy, stride, rounding); | ||
345 : | interpolate8x8_add_switch(cur, refn, x+8, y+8, dx, dy, stride, rounding); | ||
346 : | } | ||
347 : | edgomez | 851 | |
348 : | static __inline void | ||
349 : | interpolate32x32_switch(uint8_t * const cur, | ||
350 : | const uint8_t * const refn, | ||
351 : | const uint32_t x, | ||
352 : | const uint32_t y, | ||
353 : | const int32_t dx, | ||
354 : | const int dy, | ||
355 : | const uint32_t stride, | ||
356 : | const uint32_t rounding) | ||
357 : | { | ||
358 : | interpolate16x16_switch(cur, refn, x, y, dx, dy, stride, rounding); | ||
359 : | interpolate16x16_switch(cur, refn, x+16, y, dx, dy, stride, rounding); | ||
360 : | interpolate16x16_switch(cur, refn, x, y+16, dx, dy, stride, rounding); | ||
361 : | interpolate16x16_switch(cur, refn, x+16, y+16, dx, dy, stride, rounding); | ||
362 : | } | ||
363 : | |||
364 : | edgomez | 1530 | static __inline void |
365 : | interpolate32x32_add_switch(uint8_t * const cur, | ||
366 : | const uint8_t * const refn, | ||
367 : | const uint32_t x, | ||
368 : | const uint32_t y, | ||
369 : | const int32_t dx, | ||
370 : | const int dy, | ||
371 : | const uint32_t stride, | ||
372 : | const uint32_t rounding) | ||
373 : | { | ||
374 : | interpolate16x16_add_switch(cur, refn, x, y, dx, dy, stride, rounding); | ||
375 : | interpolate16x16_add_switch(cur, refn, x+16, y, dx, dy, stride, rounding); | ||
376 : | interpolate16x16_add_switch(cur, refn, x, y+16, dx, dy, stride, rounding); | ||
377 : | interpolate16x16_add_switch(cur, refn, x+16, y+16, dx, dy, stride, rounding); | ||
378 : | } | ||
379 : | edgomez | 851 | |
380 : | static __inline uint8_t * | ||
381 : | interpolate8x8_switch2(uint8_t * const buffer, | ||
382 : | const uint8_t * const refn, | ||
383 : | edgomez | 1382 | const int x, |
384 : | const int y, | ||
385 : | const int dx, | ||
386 : | edgomez | 851 | const int dy, |
387 : | const uint32_t stride, | ||
388 : | const uint32_t rounding) | ||
389 : | { | ||
390 : | |||
391 : | edgomez | 1382 | const uint8_t * const src = refn + (int)((y + (dy>>1)) * stride + x + (dx>>1)); |
392 : | |||
393 : | switch (((dx & 1) << 1) + (dy & 1)) { /* ((dx%2)?2:0)+((dy%2)?1:0) */ | ||
394 : | edgomez | 851 | case 0: |
395 : | edgomez | 1382 | return (uint8_t *)src; |
396 : | edgomez | 851 | case 1: |
397 : | edgomez | 1382 | interpolate8x8_halfpel_v(buffer, src, stride, rounding); |
398 : | edgomez | 851 | break; |
399 : | case 2: | ||
400 : | edgomez | 1382 | interpolate8x8_halfpel_h(buffer, src, stride, rounding); |
401 : | edgomez | 851 | break; |
402 : | default: | ||
403 : | edgomez | 1382 | interpolate8x8_halfpel_hv(buffer, src, stride, rounding); |
404 : | edgomez | 851 | break; |
405 : | } | ||
406 : | return buffer; | ||
407 : | } | ||
408 : | |||
409 : | #endif |
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