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h264qpel.c
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1 /*
2  * Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/ppc/cpu.h"
26 #include "libavutil/ppc/types_altivec.h"
27 #include "libavutil/ppc/util_altivec.h"
28 #include "libavcodec/h264qpel.h"
29 #include "hpeldsp_altivec.h"
30 
31 #if HAVE_ALTIVEC
32 
33 #define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
34 #define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
35 
36 #define OP_U8_ALTIVEC PUT_OP_U8_ALTIVEC
37 #define PREFIX_h264_qpel16_h_lowpass_altivec put_h264_qpel16_h_lowpass_altivec
38 #define PREFIX_h264_qpel16_h_lowpass_num altivec_put_h264_qpel16_h_lowpass_num
39 #define PREFIX_h264_qpel16_v_lowpass_altivec put_h264_qpel16_v_lowpass_altivec
40 #define PREFIX_h264_qpel16_v_lowpass_num altivec_put_h264_qpel16_v_lowpass_num
41 #define PREFIX_h264_qpel16_hv_lowpass_altivec put_h264_qpel16_hv_lowpass_altivec
42 #define PREFIX_h264_qpel16_hv_lowpass_num altivec_put_h264_qpel16_hv_lowpass_num
43 #include "h264qpel_template.c"
44 #undef OP_U8_ALTIVEC
45 #undef PREFIX_h264_qpel16_h_lowpass_altivec
46 #undef PREFIX_h264_qpel16_h_lowpass_num
47 #undef PREFIX_h264_qpel16_v_lowpass_altivec
48 #undef PREFIX_h264_qpel16_v_lowpass_num
49 #undef PREFIX_h264_qpel16_hv_lowpass_altivec
50 #undef PREFIX_h264_qpel16_hv_lowpass_num
51 
52 #define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
53 #define PREFIX_h264_qpel16_h_lowpass_altivec avg_h264_qpel16_h_lowpass_altivec
54 #define PREFIX_h264_qpel16_h_lowpass_num altivec_avg_h264_qpel16_h_lowpass_num
55 #define PREFIX_h264_qpel16_v_lowpass_altivec avg_h264_qpel16_v_lowpass_altivec
56 #define PREFIX_h264_qpel16_v_lowpass_num altivec_avg_h264_qpel16_v_lowpass_num
57 #define PREFIX_h264_qpel16_hv_lowpass_altivec avg_h264_qpel16_hv_lowpass_altivec
58 #define PREFIX_h264_qpel16_hv_lowpass_num altivec_avg_h264_qpel16_hv_lowpass_num
59 #include "h264qpel_template.c"
60 #undef OP_U8_ALTIVEC
61 #undef PREFIX_h264_qpel16_h_lowpass_altivec
62 #undef PREFIX_h264_qpel16_h_lowpass_num
63 #undef PREFIX_h264_qpel16_v_lowpass_altivec
64 #undef PREFIX_h264_qpel16_v_lowpass_num
65 #undef PREFIX_h264_qpel16_hv_lowpass_altivec
66 #undef PREFIX_h264_qpel16_hv_lowpass_num
67 
68 #define H264_MC(OPNAME, SIZE, CODETYPE) \
69 static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## CODETYPE (uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
70 {\
71  ff_ ## OPNAME ## pixels ## SIZE ## _ ## CODETYPE(dst, src, stride, SIZE);\
72 }\
73 \
74 static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
75 { \
76  DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
77  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
78  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
79 }\
80 \
81 static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
82 {\
83  OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(dst, src, stride, stride);\
84 }\
85 \
86 static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
87 {\
88  DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
89  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
90  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+1, half, stride, stride, SIZE);\
91 }\
92 \
93 static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
94 {\
95  DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
96  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
97  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
98 }\
99 \
100 static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
101 {\
102  OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(dst, src, stride, stride);\
103 }\
104 \
105 static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
106 {\
107  DECLARE_ALIGNED(16, uint8_t, half)[SIZE*SIZE];\
108  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
109  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+stride, half, stride, stride, SIZE);\
110 }\
111 \
112 static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
113 {\
114  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
115  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
116  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
117  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
118  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
119 }\
120 \
121 static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
122 {\
123  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
124  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
125  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
126  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
127  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
128 }\
129 \
130 static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
131 {\
132  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
133  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
134  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
135  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
136  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
137 }\
138 \
139 static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
140 {\
141  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
142  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
143  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
144  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
145  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
146 }\
147 \
148 static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
149 {\
150  DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
151  OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(dst, tmp, src, stride, SIZE, stride);\
152 }\
153 \
154 static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
155 {\
156  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
157  DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
158  DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
159  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
160  put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
161  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
162 }\
163 \
164 static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
165 {\
166  DECLARE_ALIGNED(16, uint8_t, halfH)[SIZE*SIZE];\
167  DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
168  DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
169  put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
170  put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
171  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
172 }\
173 \
174 static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
175 {\
176  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
177  DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
178  DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
179  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
180  put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
181  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
182 }\
183 \
184 static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## CODETYPE(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
185 {\
186  DECLARE_ALIGNED(16, uint8_t, halfV)[SIZE*SIZE];\
187  DECLARE_ALIGNED(16, uint8_t, halfHV)[SIZE*SIZE];\
188  DECLARE_ALIGNED(16, int16_t, tmp)[SIZE*(SIZE+8)];\
189  put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
190  put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
191  OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
192 }\
193 
194 static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
195  const uint8_t * src2, int dst_stride,
196  int src_stride1, int h)
197 {
198  int i;
199  vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
200 
201  mask_ = vec_lvsl(0, src2);
202 
203  for (i = 0; i < h; i++) {
204 
205  tmp1 = vec_ld(i * src_stride1, src1);
206  mask = vec_lvsl(i * src_stride1, src1);
207  tmp2 = vec_ld(i * src_stride1 + 15, src1);
208 
209  a = vec_perm(tmp1, tmp2, mask);
210 
211  tmp1 = vec_ld(i * 16, src2);
212  tmp2 = vec_ld(i * 16 + 15, src2);
213 
214  b = vec_perm(tmp1, tmp2, mask_);
215 
216  tmp1 = vec_ld(0, dst);
217  mask = vec_lvsl(0, dst);
218  tmp2 = vec_ld(15, dst);
219 
220  d = vec_avg(a, b);
221 
222  edges = vec_perm(tmp2, tmp1, mask);
223 
224  align = vec_lvsr(0, dst);
225 
226  tmp2 = vec_perm(d, edges, align);
227  tmp1 = vec_perm(edges, d, align);
228 
229  vec_st(tmp2, 15, dst);
230  vec_st(tmp1, 0 , dst);
231 
232  dst += dst_stride;
233  }
234 }
235 
236 static inline void avg_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
237  const uint8_t * src2, int dst_stride,
238  int src_stride1, int h)
239 {
240  int i;
241  vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
242 
243  mask_ = vec_lvsl(0, src2);
244 
245  for (i = 0; i < h; i++) {
246 
247  tmp1 = vec_ld(i * src_stride1, src1);
248  mask = vec_lvsl(i * src_stride1, src1);
249  tmp2 = vec_ld(i * src_stride1 + 15, src1);
250 
251  a = vec_perm(tmp1, tmp2, mask);
252 
253  tmp1 = vec_ld(i * 16, src2);
254  tmp2 = vec_ld(i * 16 + 15, src2);
255 
256  b = vec_perm(tmp1, tmp2, mask_);
257 
258  tmp1 = vec_ld(0, dst);
259  mask = vec_lvsl(0, dst);
260  tmp2 = vec_ld(15, dst);
261 
262  d = vec_avg(vec_perm(tmp1, tmp2, mask), vec_avg(a, b));
263 
264  edges = vec_perm(tmp2, tmp1, mask);
265 
266  align = vec_lvsr(0, dst);
267 
268  tmp2 = vec_perm(d, edges, align);
269  tmp1 = vec_perm(edges, d, align);
270 
271  vec_st(tmp2, 15, dst);
272  vec_st(tmp1, 0 , dst);
273 
274  dst += dst_stride;
275  }
276 }
277 
278 /* Implemented but could be faster
279 #define put_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) put_pixels16_l2(d,s1,s2,ds,s1s,16,h)
280 #define avg_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) avg_pixels16_l2(d,s1,s2,ds,s1s,16,h)
281  */
282 
283 H264_MC(put_, 16, altivec)
284 H264_MC(avg_, 16, altivec)
285 #endif /* HAVE_ALTIVEC */
286 
287 av_cold void ff_h264qpel_init_ppc(H264QpelContext *c, int bit_depth)
288 {
289 #if HAVE_ALTIVEC
290  const int high_bit_depth = bit_depth > 8;
291 
292  if (!PPC_ALTIVEC(av_get_cpu_flags()))
293  return;
294 
295  if (!high_bit_depth) {
296 #define dspfunc(PFX, IDX, NUM) \
297  c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_altivec; \
298  c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_altivec; \
299  c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_altivec; \
300  c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_altivec; \
301  c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_altivec; \
302  c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_altivec; \
303  c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_altivec; \
304  c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_altivec; \
305  c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_altivec; \
306  c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_altivec; \
307  c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_altivec; \
308  c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_altivec; \
309  c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_altivec; \
310  c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_altivec; \
311  c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_altivec; \
312  c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_altivec
313 
314  dspfunc(put_h264_qpel, 0, 16);
315  dspfunc(avg_h264_qpel, 0, 16);
316 #undef dspfunc
317  }
318 #endif /* HAVE_ALTIVEC */
319 }
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