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rv30dsp.c
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1 /*
2  * RV30 decoder motion compensation functions
3  * Copyright (c) 2007 Konstantin Shishkov
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * RV30 decoder motion compensation functions
25  */
26 
27 #include "avcodec.h"
28 #include "h264chroma.h"
29 #include "h264qpel.h"
30 #include "mathops.h"
31 #include "rv34dsp.h"
32 
33 #define RV30_LOWPASS(OPNAME, OP) \
34 static void OPNAME ## rv30_tpel8_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, const int C1, const int C2){\
35  const int h = 8;\
36  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
37  int i;\
38  for(i = 0; i < h; i++)\
39  {\
40  OP(dst[0], (-(src[-1]+src[2]) + src[0]*C1 + src[1]*C2 + 8)>>4);\
41  OP(dst[1], (-(src[ 0]+src[3]) + src[1]*C1 + src[2]*C2 + 8)>>4);\
42  OP(dst[2], (-(src[ 1]+src[4]) + src[2]*C1 + src[3]*C2 + 8)>>4);\
43  OP(dst[3], (-(src[ 2]+src[5]) + src[3]*C1 + src[4]*C2 + 8)>>4);\
44  OP(dst[4], (-(src[ 3]+src[6]) + src[4]*C1 + src[5]*C2 + 8)>>4);\
45  OP(dst[5], (-(src[ 4]+src[7]) + src[5]*C1 + src[6]*C2 + 8)>>4);\
46  OP(dst[6], (-(src[ 5]+src[8]) + src[6]*C1 + src[7]*C2 + 8)>>4);\
47  OP(dst[7], (-(src[ 6]+src[9]) + src[7]*C1 + src[8]*C2 + 8)>>4);\
48  dst += dstStride;\
49  src += srcStride;\
50  }\
51 }\
52 \
53 static void OPNAME ## rv30_tpel8_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, const int C1, const int C2){\
54  const int w = 8;\
55  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
56  int i;\
57  for(i = 0; i < w; i++)\
58  {\
59  const int srcA = src[-1*srcStride];\
60  const int src0 = src[0 *srcStride];\
61  const int src1 = src[1 *srcStride];\
62  const int src2 = src[2 *srcStride];\
63  const int src3 = src[3 *srcStride];\
64  const int src4 = src[4 *srcStride];\
65  const int src5 = src[5 *srcStride];\
66  const int src6 = src[6 *srcStride];\
67  const int src7 = src[7 *srcStride];\
68  const int src8 = src[8 *srcStride];\
69  const int src9 = src[9 *srcStride];\
70  OP(dst[0*dstStride], (-(srcA+src2) + src0*C1 + src1*C2 + 8)>>4);\
71  OP(dst[1*dstStride], (-(src0+src3) + src1*C1 + src2*C2 + 8)>>4);\
72  OP(dst[2*dstStride], (-(src1+src4) + src2*C1 + src3*C2 + 8)>>4);\
73  OP(dst[3*dstStride], (-(src2+src5) + src3*C1 + src4*C2 + 8)>>4);\
74  OP(dst[4*dstStride], (-(src3+src6) + src4*C1 + src5*C2 + 8)>>4);\
75  OP(dst[5*dstStride], (-(src4+src7) + src5*C1 + src6*C2 + 8)>>4);\
76  OP(dst[6*dstStride], (-(src5+src8) + src6*C1 + src7*C2 + 8)>>4);\
77  OP(dst[7*dstStride], (-(src6+src9) + src7*C1 + src8*C2 + 8)>>4);\
78  dst++;\
79  src++;\
80  }\
81 }\
82 \
83 static void OPNAME ## rv30_tpel8_hv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
84  const int w = 8;\
85  const int h = 8;\
86  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
87  int i, j;\
88  for(j = 0; j < h; j++){\
89  for(i = 0; i < w; i++){\
90  OP(dst[i], (\
91  src[srcStride*-1+i-1] -12*src[srcStride*-1+i] -6*src[srcStride*-1+i+1] +src[srcStride*-1+i+2]+\
92  -12*src[srcStride* 0+i-1] +144*src[srcStride* 0+i] +72*src[srcStride* 0+i+1] -12*src[srcStride* 0+i+2] +\
93  -6*src[srcStride* 1+i-1] +72*src[srcStride* 1+i] +36*src[srcStride* 1+i+1] -6*src[srcStride* 1+i+2] +\
94  src[srcStride* 2+i-1] -12*src[srcStride* 2+i] -6*src[srcStride* 2+i+1] +src[srcStride* 2+i+2] +\
95  128)>>8);\
96  }\
97  src += srcStride;\
98  dst += dstStride;\
99  }\
100 }\
101 \
102 static void OPNAME ## rv30_tpel8_hhv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
103  const int w = 8;\
104  const int h = 8;\
105  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
106  int i, j;\
107  for(j = 0; j < h; j++){\
108  for(i = 0; i < w; i++){\
109  OP(dst[i], (\
110  src[srcStride*-1+i-1] -12*src[srcStride*-1+i+1] -6*src[srcStride*-1+i] +src[srcStride*-1+i+2]+\
111  -12*src[srcStride* 0+i-1] +144*src[srcStride* 0+i+1] +72*src[srcStride* 0+i] -12*src[srcStride* 0+i+2]+\
112  -6*src[srcStride* 1+i-1] +72*src[srcStride* 1+i+1] +36*src[srcStride* 1+i] -6*src[srcStride* 1+i+2]+\
113  src[srcStride* 2+i-1] -12*src[srcStride* 2+i+1] -6*src[srcStride* 2+i] +src[srcStride* 2+i+2]+\
114  128)>>8);\
115  }\
116  src += srcStride;\
117  dst += dstStride;\
118  }\
119 }\
120 \
121 static void OPNAME ## rv30_tpel8_hvv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
122  const int w = 8;\
123  const int h = 8;\
124  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
125  int i, j;\
126  for(j = 0; j < h; j++){\
127  for(i = 0; i < w; i++){\
128  OP(dst[i], (\
129  src[srcStride*-1+i-1] -12*src[srcStride*-1+i] -6*src[srcStride*-1+i+1] +src[srcStride*-1+i+2]+\
130  -6*src[srcStride* 0+i-1] +72*src[srcStride* 0+i] +36*src[srcStride* 0+i+1] -6*src[srcStride* 0+i+2]+\
131  -12*src[srcStride* 1+i-1] +144*src[srcStride* 1+i] +72*src[srcStride* 1+i+1] -12*src[srcStride* 1+i+2]+\
132  src[srcStride* 2+i-1] -12*src[srcStride* 2+i] -6*src[srcStride* 2+i+1] +src[srcStride* 2+i+2]+\
133  128)>>8);\
134  }\
135  src += srcStride;\
136  dst += dstStride;\
137  }\
138 }\
139 \
140 static void OPNAME ## rv30_tpel8_hhvv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
141  const int w = 8;\
142  const int h = 8;\
143  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
144  int i, j;\
145  for(j = 0; j < h; j++){\
146  for(i = 0; i < w; i++){\
147  OP(dst[i], (\
148  36*src[i+srcStride*0] +54*src[i+1+srcStride*0] +6*src[i+2+srcStride*0]+\
149  54*src[i+srcStride*1] +81*src[i+1+srcStride*1] +9*src[i+2+srcStride*1]+\
150  6*src[i+srcStride*2] + 9*src[i+1+srcStride*2] + src[i+2+srcStride*2]+\
151  128)>>8);\
152  }\
153  src += srcStride;\
154  dst += dstStride;\
155  }\
156 }\
157 \
158 static void OPNAME ## rv30_tpel16_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, const int C1, const int C2){\
159  OPNAME ## rv30_tpel8_v_lowpass(dst , src , dstStride, srcStride, C1, C2);\
160  OPNAME ## rv30_tpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, C1, C2);\
161  src += 8*srcStride;\
162  dst += 8*dstStride;\
163  OPNAME ## rv30_tpel8_v_lowpass(dst , src , dstStride, srcStride, C1, C2);\
164  OPNAME ## rv30_tpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, C1, C2);\
165 }\
166 \
167 static void OPNAME ## rv30_tpel16_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride, const int C1, const int C2){\
168  OPNAME ## rv30_tpel8_h_lowpass(dst , src , dstStride, srcStride, C1, C2);\
169  OPNAME ## rv30_tpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, C1, C2);\
170  src += 8*srcStride;\
171  dst += 8*dstStride;\
172  OPNAME ## rv30_tpel8_h_lowpass(dst , src , dstStride, srcStride, C1, C2);\
173  OPNAME ## rv30_tpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, C1, C2);\
174 }\
175 \
176 static void OPNAME ## rv30_tpel16_hv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
177  OPNAME ## rv30_tpel8_hv_lowpass(dst , src , dstStride, srcStride);\
178  OPNAME ## rv30_tpel8_hv_lowpass(dst+8, src+8, dstStride, srcStride);\
179  src += 8*srcStride;\
180  dst += 8*dstStride;\
181  OPNAME ## rv30_tpel8_hv_lowpass(dst , src , dstStride, srcStride);\
182  OPNAME ## rv30_tpel8_hv_lowpass(dst+8, src+8, dstStride, srcStride);\
183 }\
184 \
185 static void OPNAME ## rv30_tpel16_hhv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
186  OPNAME ## rv30_tpel8_hhv_lowpass(dst , src , dstStride, srcStride);\
187  OPNAME ## rv30_tpel8_hhv_lowpass(dst+8, src+8, dstStride, srcStride);\
188  src += 8*srcStride;\
189  dst += 8*dstStride;\
190  OPNAME ## rv30_tpel8_hhv_lowpass(dst , src , dstStride, srcStride);\
191  OPNAME ## rv30_tpel8_hhv_lowpass(dst+8, src+8, dstStride, srcStride);\
192 }\
193 \
194 static void OPNAME ## rv30_tpel16_hvv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
195  OPNAME ## rv30_tpel8_hvv_lowpass(dst , src , dstStride, srcStride);\
196  OPNAME ## rv30_tpel8_hvv_lowpass(dst+8, src+8, dstStride, srcStride);\
197  src += 8*srcStride;\
198  dst += 8*dstStride;\
199  OPNAME ## rv30_tpel8_hvv_lowpass(dst , src , dstStride, srcStride);\
200  OPNAME ## rv30_tpel8_hvv_lowpass(dst+8, src+8, dstStride, srcStride);\
201 }\
202 \
203 static void OPNAME ## rv30_tpel16_hhvv_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride){\
204  OPNAME ## rv30_tpel8_hhvv_lowpass(dst , src , dstStride, srcStride);\
205  OPNAME ## rv30_tpel8_hhvv_lowpass(dst+8, src+8, dstStride, srcStride);\
206  src += 8*srcStride;\
207  dst += 8*dstStride;\
208  OPNAME ## rv30_tpel8_hhvv_lowpass(dst , src , dstStride, srcStride);\
209  OPNAME ## rv30_tpel8_hhvv_lowpass(dst+8, src+8, dstStride, srcStride);\
210 }\
211 \
212 
213 #define RV30_MC(OPNAME, SIZE) \
214 static void OPNAME ## rv30_tpel ## SIZE ## _mc10_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
215 {\
216  OPNAME ## rv30_tpel ## SIZE ## _h_lowpass(dst, src, stride, stride, 12, 6);\
217 }\
218 \
219 static void OPNAME ## rv30_tpel ## SIZE ## _mc20_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
220 {\
221  OPNAME ## rv30_tpel ## SIZE ## _h_lowpass(dst, src, stride, stride, 6, 12);\
222 }\
223 \
224 static void OPNAME ## rv30_tpel ## SIZE ## _mc01_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
225 {\
226  OPNAME ## rv30_tpel ## SIZE ## _v_lowpass(dst, src, stride, stride, 12, 6);\
227 }\
228 \
229 static void OPNAME ## rv30_tpel ## SIZE ## _mc02_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
230 {\
231  OPNAME ## rv30_tpel ## SIZE ## _v_lowpass(dst, src, stride, stride, 6, 12);\
232 }\
233 \
234 static void OPNAME ## rv30_tpel ## SIZE ## _mc11_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
235 {\
236  OPNAME ## rv30_tpel ## SIZE ## _hv_lowpass(dst, src, stride, stride);\
237 }\
238 \
239 static void OPNAME ## rv30_tpel ## SIZE ## _mc12_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
240 {\
241  OPNAME ## rv30_tpel ## SIZE ## _hvv_lowpass(dst, src, stride, stride);\
242 }\
243 \
244 static void OPNAME ## rv30_tpel ## SIZE ## _mc21_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
245 {\
246  OPNAME ## rv30_tpel ## SIZE ## _hhv_lowpass(dst, src, stride, stride);\
247 }\
248 \
249 static void OPNAME ## rv30_tpel ## SIZE ## _mc22_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
250 {\
251  OPNAME ## rv30_tpel ## SIZE ## _hhvv_lowpass(dst, src, stride, stride);\
252 }\
253 \
254 
255 #define op_avg(a, b) a = (((a)+cm[b]+1)>>1)
256 #define op_put(a, b) a = cm[b]
257 
258 RV30_LOWPASS(put_ , op_put)
259 RV30_LOWPASS(avg_ , op_avg)
260 RV30_MC(put_, 8)
261 RV30_MC(put_, 16)
262 RV30_MC(avg_, 8)
263 RV30_MC(avg_, 16)
264 
265 av_cold void ff_rv30dsp_init(RV34DSPContext *c)
266 {
267  H264ChromaContext h264chroma;
268  H264QpelContext qpel;
269 
270  ff_rv34dsp_init(c);
271  ff_h264chroma_init(&h264chroma, 8);
272  ff_h264qpel_init(&qpel, 8);
273 
274  c->put_pixels_tab[0][ 0] = qpel.put_h264_qpel_pixels_tab[0][0];
275  c->put_pixels_tab[0][ 1] = put_rv30_tpel16_mc10_c;
276  c->put_pixels_tab[0][ 2] = put_rv30_tpel16_mc20_c;
277  c->put_pixels_tab[0][ 4] = put_rv30_tpel16_mc01_c;
278  c->put_pixels_tab[0][ 5] = put_rv30_tpel16_mc11_c;
279  c->put_pixels_tab[0][ 6] = put_rv30_tpel16_mc21_c;
280  c->put_pixels_tab[0][ 8] = put_rv30_tpel16_mc02_c;
281  c->put_pixels_tab[0][ 9] = put_rv30_tpel16_mc12_c;
282  c->put_pixels_tab[0][10] = put_rv30_tpel16_mc22_c;
283  c->avg_pixels_tab[0][ 0] = qpel.avg_h264_qpel_pixels_tab[0][0];
284  c->avg_pixels_tab[0][ 1] = avg_rv30_tpel16_mc10_c;
285  c->avg_pixels_tab[0][ 2] = avg_rv30_tpel16_mc20_c;
286  c->avg_pixels_tab[0][ 4] = avg_rv30_tpel16_mc01_c;
287  c->avg_pixels_tab[0][ 5] = avg_rv30_tpel16_mc11_c;
288  c->avg_pixels_tab[0][ 6] = avg_rv30_tpel16_mc21_c;
289  c->avg_pixels_tab[0][ 8] = avg_rv30_tpel16_mc02_c;
290  c->avg_pixels_tab[0][ 9] = avg_rv30_tpel16_mc12_c;
291  c->avg_pixels_tab[0][10] = avg_rv30_tpel16_mc22_c;
292  c->put_pixels_tab[1][ 0] = qpel.put_h264_qpel_pixels_tab[1][0];
293  c->put_pixels_tab[1][ 1] = put_rv30_tpel8_mc10_c;
294  c->put_pixels_tab[1][ 2] = put_rv30_tpel8_mc20_c;
295  c->put_pixels_tab[1][ 4] = put_rv30_tpel8_mc01_c;
296  c->put_pixels_tab[1][ 5] = put_rv30_tpel8_mc11_c;
297  c->put_pixels_tab[1][ 6] = put_rv30_tpel8_mc21_c;
298  c->put_pixels_tab[1][ 8] = put_rv30_tpel8_mc02_c;
299  c->put_pixels_tab[1][ 9] = put_rv30_tpel8_mc12_c;
300  c->put_pixels_tab[1][10] = put_rv30_tpel8_mc22_c;
301  c->avg_pixels_tab[1][ 0] = qpel.avg_h264_qpel_pixels_tab[1][0];
302  c->avg_pixels_tab[1][ 1] = avg_rv30_tpel8_mc10_c;
303  c->avg_pixels_tab[1][ 2] = avg_rv30_tpel8_mc20_c;
304  c->avg_pixels_tab[1][ 4] = avg_rv30_tpel8_mc01_c;
305  c->avg_pixels_tab[1][ 5] = avg_rv30_tpel8_mc11_c;
306  c->avg_pixels_tab[1][ 6] = avg_rv30_tpel8_mc21_c;
307  c->avg_pixels_tab[1][ 8] = avg_rv30_tpel8_mc02_c;
308  c->avg_pixels_tab[1][ 9] = avg_rv30_tpel8_mc12_c;
309  c->avg_pixels_tab[1][10] = avg_rv30_tpel8_mc22_c;
310 
311  c->put_chroma_pixels_tab[0] = h264chroma.put_h264_chroma_pixels_tab[0];
312  c->put_chroma_pixels_tab[1] = h264chroma.put_h264_chroma_pixels_tab[1];
313  c->avg_chroma_pixels_tab[0] = h264chroma.avg_h264_chroma_pixels_tab[0];
314  c->avg_chroma_pixels_tab[1] = h264chroma.avg_h264_chroma_pixels_tab[1];
315 }
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