FFmpeg
simple_idct_mmi.c
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1 /*
2  * Loongson SIMD optimized simple idct
3  *
4  * Copyright (c) 2015 Loongson Technology Corporation Limited
5  * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
6  * Zhang Shuangshuang <zhangshuangshuang@ict.ac.cn>
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg 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 GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 #include "idctdsp_mips.h"
26 #include "constants.h"
27 #include "libavutil/mips/asmdefs.h"
28 #include "libavutil/mips/mmiutils.h"
29 
30 #define W1 22725 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
31 #define W2 21407 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
32 #define W3 19266 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
33 #define W4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
34 #define W5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
35 #define W6 8867 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
36 #define W7 4520 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
37 
38 #define ROW_SHIFT 11
39 #define COL_SHIFT 20
40 #define DC_SHIFT 3
41 
42 DECLARE_ALIGNED(8, const int16_t, W_arr)[46] = {
43  W4, W2, W4, W6,
44  W1, W3, W5, W7,
45  W4, W6, -W4, -W2,
46  W3, -W7, -W1, -W5,
47  W4, -W6, -W4, W2,
48  W5, -W1, W7, W3,
49  W4, -W2, W4, -W6,
50  W7, -W5, W3, -W1,
51  1024, 0, 1024, 0, //ff_p32_1024 = 0x0000040000000400ULL
52  0, -1, -1, -1, //mask = 0xffffffffffff0000ULL
53  32, 32, 32, 32 //ff_p16_32 = 0x0020002000200020ULL
54 };
55 
56 void ff_simple_idct_8_mmi(int16_t *block)
57 {
58  BACKUP_REG
59  __asm__ volatile (
60 
61 #define IDCT_ROW_COND_DC(src1, src2) \
62  "dmfc1 $11, "#src1" \n\t" \
63  "dmfc1 $12, "#src2" \n\t" \
64  "and $11, $11, $9 \n\t" \
65  "or $10, $11, $12 \n\t" \
66  "beqz $10, 1f \n\t" \
67  \
68  "punpcklhw $f30, "#src1", "#src2" \n\t" \
69  "punpckhhw $f31, "#src1", "#src2" \n\t" \
70  /* s6, s4, s2, s0 */ \
71  "punpcklhw "#src1", $f30, $f31 \n\t" \
72  /* s7, s5, s3, s1 */ \
73  "punpckhhw "#src2", $f30, $f31 \n\t" \
74  \
75  "pmaddhw $f30, "#src1", $f18 \n\t" \
76  "pmaddhw $f31, "#src2", $f19 \n\t" \
77  "paddw $f28, $f30, $f31 \n\t" \
78  "psubw $f29, $f30, $f31 \n\t" \
79  "punpcklwd $f30, $f28, $f29 \n\t" \
80  "punpckhwd $f31, $f28, $f29 \n\t" \
81  "paddw $f26, $f30, $f31 \n\t" \
82  "paddw $f26, $f26, $f16 \n\t" \
83  /* $f26: src[7], src[0] */ \
84  "psraw $f26, $f26, $f17 \n\t" \
85  \
86  "pmaddhw $f30, "#src1", $f20 \n\t" \
87  "pmaddhw $f31, "#src2", $f21 \n\t" \
88  "paddw $f28, $f30, $f31 \n\t" \
89  "psubw $f29, $f30, $f31 \n\t" \
90  "punpcklwd $f30, $f28, $f29 \n\t" \
91  "punpckhwd $f31, $f28, $f29 \n\t" \
92  "paddw $f27, $f30, $f31 \n\t" \
93  "paddw $f27, $f27, $f16 \n\t" \
94  /* $f27: src[6], src[1] */ \
95  "psraw $f27, $f27, $f17 \n\t" \
96  \
97  "pmaddhw $f30, "#src1", $f22 \n\t" \
98  "pmaddhw $f31, "#src2", $f23 \n\t" \
99  "paddw $f28, $f30, $f31 \n\t" \
100  "psubw $f29, $f30, $f31 \n\t" \
101  "punpcklwd $f30, $f28, $f29 \n\t" \
102  "punpckhwd $f31, $f28, $f29 \n\t" \
103  "paddw $f28, $f30, $f31 \n\t" \
104  "paddw $f28, $f28, $f16 \n\t" \
105  /* $f28: src[5], src[2] */ \
106  "psraw $f28, $f28, $f17 \n\t" \
107  \
108  "pmaddhw $f30, "#src1", $f24 \n\t" \
109  "pmaddhw $f31, "#src2", $f25 \n\t" \
110  "paddw "#src1", $f30, $f31 \n\t" \
111  "psubw "#src2", $f30, $f31 \n\t" \
112  "punpcklwd $f30, "#src1", "#src2" \n\t" \
113  "punpckhwd $f31, "#src1", "#src2" \n\t" \
114  "paddw $f29, $f30, $f31 \n\t" \
115  "paddw $f29, $f29, $f16 \n\t" \
116  /* $f29: src[4], src[3] */ \
117  "psraw $f29, $f29, $f17 \n\t" \
118  \
119  "punpcklhw "#src1", $f26, $f27 \n\t" \
120  "punpckhhw $f30, $f27, $f26 \n\t" \
121  "punpcklhw $f31, $f28, $f29 \n\t" \
122  "punpckhhw "#src2", $f29, $f28 \n\t" \
123  /* src[3], src[2], src[1], src[0] */ \
124  "punpcklwd "#src1", "#src1", $f31 \n\t" \
125  /* src[7], src[6], src[5], src[4] */ \
126  "punpcklwd "#src2", "#src2", $f30 \n\t" \
127  "j 2f \n\t" \
128  \
129  "1: \n\t" \
130  "li $10, 3 \n\t" \
131  "dmtc1 $10, $f30 \n\t" \
132  "psllh $f28, "#src1", $f30 \n\t" \
133  "dmtc1 $9, $f31 \n\t" \
134  "punpcklhw $f29, $f28, $f28 \n\t" \
135  "and $f29, $f29, $f31 \n\t" \
136  "paddw $f28, $f28, $f29 \n\t" \
137  "punpcklwd "#src1", $f28, $f28 \n\t" \
138  "punpcklwd "#src2", $f28, $f28 \n\t" \
139  "2: \n\t" \
140 
141  /* idctRowCondDC row0~8 */
142 
143  /* load W */
144  "gslqc1 $f19, $f18, 0x00(%[w_arr]) \n\t"
145  "gslqc1 $f21, $f20, 0x10(%[w_arr]) \n\t"
146  "gslqc1 $f23, $f22, 0x20(%[w_arr]) \n\t"
147  "gslqc1 $f25, $f24, 0x30(%[w_arr]) \n\t"
148  "gslqc1 $f17, $f16, 0x40(%[w_arr]) \n\t"
149  /* load source in block */
150  "gslqc1 $f1, $f0, 0x00(%[block]) \n\t"
151  "gslqc1 $f3, $f2, 0x10(%[block]) \n\t"
152  "gslqc1 $f5, $f4, 0x20(%[block]) \n\t"
153  "gslqc1 $f7, $f6, 0x30(%[block]) \n\t"
154  "gslqc1 $f9, $f8, 0x40(%[block]) \n\t"
155  "gslqc1 $f11, $f10, 0x50(%[block]) \n\t"
156  "gslqc1 $f13, $f12, 0x60(%[block]) \n\t"
157  "gslqc1 $f15, $f14, 0x70(%[block]) \n\t"
158 
159  /* $9: mask ; $f17: ROW_SHIFT */
160  "dmfc1 $9, $f17 \n\t"
161  "li $10, 11 \n\t"
162  "mtc1 $10, $f17 \n\t"
163  IDCT_ROW_COND_DC($f0,$f1)
164  IDCT_ROW_COND_DC($f2,$f3)
165  IDCT_ROW_COND_DC($f4,$f5)
166  IDCT_ROW_COND_DC($f6,$f7)
167  IDCT_ROW_COND_DC($f8,$f9)
168  IDCT_ROW_COND_DC($f10,$f11)
169  IDCT_ROW_COND_DC($f12,$f13)
170  IDCT_ROW_COND_DC($f14,$f15)
171 
172 #define IDCT_COL_CASE1(src, out1, out2) \
173  "pmaddhw $f26, "#src", $f18 \n\t" \
174  "pmaddhw $f27, "#src", $f20 \n\t" \
175  "pmaddhw $f28, "#src", $f22 \n\t" \
176  "pmaddhw $f29, "#src", $f24 \n\t" \
177  \
178  "punpcklwd $f30, $f26, $f26 \n\t" \
179  "punpckhwd $f31, $f26, $f26 \n\t" \
180  /* $f26: src[0], src[56] */ \
181  "paddw $f26, $f30, $f31 \n\t" \
182  "punpcklwd $f30, $f27, $f27 \n\t" \
183  "punpckhwd $f31, $f27, $f27 \n\t" \
184  /* $f27: src[8], src[48] */ \
185  "paddw $f27, $f30, $f31 \n\t" \
186  "punpcklwd $f30, $f28, $f28 \n\t" \
187  "punpckhwd $f31, $f28, $f28 \n\t" \
188  /* $f28: src[16], src[40] */ \
189  "paddw $f28, $f30, $f31 \n\t" \
190  "punpcklwd $f30, $f29, $f29 \n\t" \
191  "punpckhwd $f31, $f29, $f29 \n\t" \
192  /* $f29: src[24], src[32] */ \
193  "paddw $f29, $f30, $f31 \n\t" \
194  \
195  /* out1: src[24], src[16], src[8], src[0] */ \
196  /* out2: src[56], src[48], src[40], src[32] */ \
197  "punpcklhw $f30, $f26, $f27 \n\t" \
198  "punpcklhw $f31, $f28, $f29 \n\t" \
199  "punpckhwd "#out1", $f30, $f31 \n\t" \
200  "psrah "#out1", "#out1", $f16 \n\t" \
201  "punpcklhw $f30, $f27, $f26 \n\t" \
202  "punpcklhw $f31, $f29, $f28 \n\t" \
203  "punpckhwd "#out2", $f31, $f30 \n\t" \
204  "psrah "#out2", "#out2", $f16 \n\t"
205 
206 #define IDCT_COL_CASE2(src1, src2, out1, out2) \
207  "pmaddhw $f28, "#src1", $f18 \n\t" \
208  "pmaddhw $f29, "#src2", $f19 \n\t" \
209  "paddw $f30, $f28, $f29 \n\t" \
210  "psubw $f31, $f28, $f29 \n\t" \
211  "punpcklwd $f28, $f30, $f31 \n\t" \
212  "punpckhwd $f29, $f30, $f31 \n\t" \
213  "pmaddhw $f30, "#src1", $f20 \n\t" \
214  "pmaddhw $f31, "#src2", $f21 \n\t" \
215  /* $f26: src[0], src[56] */ \
216  "paddw $f26, $f28, $f29 \n\t" \
217  "paddw $f28, $f30, $f31 \n\t" \
218  "psubw $f29, $f30, $f31 \n\t" \
219  "punpcklwd $f30, $f28, $f29 \n\t" \
220  "punpckhwd $f31, $f28, $f29 \n\t" \
221  "pmaddhw $f28, "#src1", $f22 \n\t" \
222  "pmaddhw $f29, "#src2", $f23 \n\t" \
223  /* $f27: src[8], src[48] */ \
224  "paddw $f27, $f30, $f31 \n\t" \
225  "paddw $f30, $f28, $f29 \n\t" \
226  "psubw $f31, $f28, $f29 \n\t" \
227  "punpcklwd $f28, $f30, $f31 \n\t" \
228  "punpckhwd $f29, $f30, $f31 \n\t" \
229  "pmaddhw $f30, "#src1", $f24 \n\t" \
230  "pmaddhw $f31, "#src2", $f25 \n\t" \
231  /* $f28: src[16], src[40] */ \
232  "paddw $f28, $f28, $f29 \n\t" \
233  "paddw "#out1", $f30, $f31 \n\t" \
234  "psubw "#out2", $f30, $f31 \n\t" \
235  "punpcklwd $f30, "#out1", "#out2" \n\t" \
236  "punpckhwd $f31, "#out1", "#out2" \n\t" \
237  /* $f29: src[24], src[32] */ \
238  "paddw $f29, $f30, $f31 \n\t" \
239  \
240  /* out1: src[24], src[16], src[8], src[0] */ \
241  /* out2: src[56], src[48], src[40], src[32] */ \
242  "punpcklhw "#out1", $f26, $f27 \n\t" \
243  "punpckhhw "#out2", $f27, $f26 \n\t" \
244  "punpcklhw $f30, $f28, $f29 \n\t" \
245  "punpckhhw $f31, $f29, $f28 \n\t" \
246  "punpckhwd "#out1", "#out1", $f30 \n\t" \
247  "punpckhwd "#out2", $f31, "#out2" \n\t" \
248  "psrah "#out1", "#out1", $f16 \n\t" \
249  "psrah "#out2", "#out2", $f16 \n\t"
250 
251 
252  /* idctSparseCol col0~3 */
253 
254  /* $f17: ff_p16_32; $f16: COL_SHIFT-16 */
255  "gsldlc1 $f17, 0x57(%[w_arr]) \n\t"
256  "gsldrc1 $f17, 0x50(%[w_arr]) \n\t"
257  "li $10, 4 \n\t"
258  "dmtc1 $10, $f16 \n\t"
259  "paddh $f0, $f0, $f17 \n\t"
260  /* Transpose row[0,2,4,6] */
261  "punpcklhw $f26, $f0, $f4 \n\t"
262  "punpckhhw $f27, $f0, $f4 \n\t"
263  "punpcklhw $f28, $f8, $f12 \n\t"
264  "punpckhhw $f29, $f8, $f12 \n\t"
265  "punpcklwd $f0, $f26, $f28 \n\t"
266  "punpckhwd $f4, $f26, $f28 \n\t"
267  "punpcklwd $f8, $f27, $f29 \n\t"
268  "punpckhwd $f12, $f27, $f29 \n\t"
269 
270  "or $f26, $f2, $f6 \n\t"
271  "or $f26, $f26, $f10 \n\t"
272  "or $f26, $f26, $f14 \n\t"
273  "dmfc1 $10, $f26 \n\t"
274  "bnez $10, 1f \n\t"
275  /* case1: In this case, row[1,3,5,7] are all zero */
276  /* col0: $f0: col[24,16,8,0]; $f2: col[56,48,40,32] */
277  IDCT_COL_CASE1($f0, $f0, $f2)
278  /* col1: $f4: col[25,17,9,1]; $f6: col[57,49,41,33] */
279  IDCT_COL_CASE1($f4, $f4, $f6)
280  /* col2: $f8: col[26,18,10,2]; $f10: col[58,50,42,34] */
281  IDCT_COL_CASE1($f8, $f8, $f10)
282  /* col3: $f12: col[27,19,11,3]; $f14: col[59,51,43,35] */
283  IDCT_COL_CASE1($f12, $f12, $f14)
284  "j 2f \n\t"
285 
286  "1: \n\t"
287  /* case2: row[1,3,5,7] are not all zero */
288  /* Transpose */
289  "punpcklhw $f26, $f2, $f6 \n\t"
290  "punpckhhw $f27, $f2, $f6 \n\t"
291  "punpcklhw $f28, $f10, $f14 \n\t"
292  "punpckhhw $f29, $f10, $f14 \n\t"
293  "punpcklwd $f2, $f26, $f28 \n\t"
294  "punpckhwd $f6, $f26, $f28 \n\t"
295  "punpcklwd $f10, $f27, $f29 \n\t"
296  "punpckhwd $f14, $f27, $f29 \n\t"
297 
298  /* col0: $f0: col[24,16,8,0]; $f2: col[56,48,40,32] */
299  IDCT_COL_CASE2($f0, $f2, $f0, $f2)
300  /* col1: $f4: col[25,17,9,1]; $f6: col[57,49,41,33] */
301  IDCT_COL_CASE2($f4, $f6, $f4, $f6)
302  /* col2: $f8: col[26,18,10,2]; $f10: col[58,50,42,34] */
303  IDCT_COL_CASE2($f8, $f10, $f8, $f10)
304  /* col3: $f12: col[27,19,11,3]; $f14: col[59,51,43,35] */
305  IDCT_COL_CASE2($f12, $f14, $f12, $f14)
306 
307  "2: \n\t"
308  /* Transpose */
309  "punpcklhw $f26, $f0, $f4 \n\t"
310  "punpckhhw $f27, $f0, $f4 \n\t"
311  "punpcklhw $f28, $f8, $f12 \n\t"
312  "punpckhhw $f29, $f8, $f12 \n\t"
313  "punpcklwd $f0, $f26, $f28 \n\t"
314  "punpckhwd $f4, $f26, $f28 \n\t"
315  "punpcklwd $f8, $f27, $f29 \n\t"
316  "punpckhwd $f12, $f27, $f29 \n\t"
317  /* Transpose */
318  "punpcklhw $f26, $f2, $f6 \n\t"
319  "punpckhhw $f27, $f2, $f6 \n\t"
320  "punpcklhw $f28, $f10, $f14 \n\t"
321  "punpckhhw $f29, $f10, $f14 \n\t"
322  "punpcklwd $f2, $f26, $f28 \n\t"
323  "punpckhwd $f6, $f26, $f28 \n\t"
324  "punpcklwd $f10, $f27, $f29 \n\t"
325  "punpckhwd $f14, $f27, $f29 \n\t"
326 
327  /* idctSparseCol col4~7 */
328 
329  "paddh $f1, $f1, $f17 \n\t"
330  /* Transpose */
331  "punpcklhw $f26, $f1, $f5 \n\t"
332  "punpckhhw $f27, $f1, $f5 \n\t"
333  "punpcklhw $f28, $f9, $f13 \n\t"
334  "punpckhhw $f29, $f9, $f13 \n\t"
335  "punpcklwd $f1, $f26, $f28 \n\t"
336  "punpckhwd $f5, $f26, $f28 \n\t"
337  "punpcklwd $f9, $f27, $f29 \n\t"
338  "punpckhwd $f13, $f27, $f29 \n\t"
339 
340  "or $f26, $f3, $f7 \n\t"
341  "or $f26, $f26, $f11 \n\t"
342  "or $f26, $f26, $f15 \n\t"
343  "dmfc1 $10, $f26 \n\t"
344  "bnez $10, 1f \n\t"
345  /* case1: In this case, row[1,3,5,7] are all zero */
346  /* col4: $f1: col[24,16,8,0]; $f3: col[56,48,40,32] */
347  IDCT_COL_CASE1($f1, $f1, $f3)
348  /* col5: $f5: col[25,17,9,1]; $f7: col[57,49,41,33] */
349  IDCT_COL_CASE1($f5, $f5, $f7)
350  /* col6: $f9: col[26,18,10,2]; $f11: col[58,50,42,34] */
351  IDCT_COL_CASE1($f9, $f9, $f11)
352  /* col7: $f13: col[27,19,11,3]; $f15: col[59,51,43,35] */
353  IDCT_COL_CASE1($f13, $f13, $f15)
354  "j 2f \n\t"
355 
356  "1: \n\t"
357  /* case2: row[1,3,5,7] are not all zero */
358  /* Transpose */
359  "punpcklhw $f26, $f3, $f7 \n\t"
360  "punpckhhw $f27, $f3, $f7 \n\t"
361  "punpcklhw $f28, $f11, $f15 \n\t"
362  "punpckhhw $f29, $f11, $f15 \n\t"
363  "punpcklwd $f3, $f26, $f28 \n\t"
364  "punpckhwd $f7, $f26, $f28 \n\t"
365  "punpcklwd $f11, $f27, $f29 \n\t"
366  "punpckhwd $f15, $f27, $f29 \n\t"
367 
368  /* col4: $f1: col[24,16,8,0]; $f3: col[56,48,40,32] */
369  IDCT_COL_CASE2($f1, $f3, $f1, $f3)
370  /* col5: $f5: col[25,17,9,1]; $f7: col[57,49,41,33] */
371  IDCT_COL_CASE2($f5, $f7, $f5, $f7)
372  /* col6: $f9: col[26,18,10,2]; $f11: col[58,50,42,34] */
373  IDCT_COL_CASE2($f9, $f11, $f9, $f11)
374  /* col7: $f13: col[27,19,11,3]; $f15: col[59,51,43,35] */
375  IDCT_COL_CASE2($f13, $f15, $f13, $f15)
376 
377  "2: \n\t"
378  /* Transpose */
379  "punpcklhw $f26, $f1, $f5 \n\t"
380  "punpckhhw $f27, $f1, $f5 \n\t"
381  "punpcklhw $f28, $f9, $f13 \n\t"
382  "punpckhhw $f29, $f9, $f13 \n\t"
383  "punpcklwd $f1, $f26, $f28 \n\t"
384  "punpckhwd $f5, $f26, $f28 \n\t"
385  "punpcklwd $f9, $f27, $f29 \n\t"
386  "punpckhwd $f13, $f27, $f29 \n\t"
387  /* Transpose */
388  "punpcklhw $f26, $f3, $f7 \n\t"
389  "punpckhhw $f27, $f3, $f7 \n\t"
390  "punpcklhw $f28, $f11, $f15 \n\t"
391  "punpckhhw $f29, $f11, $f15 \n\t"
392  "punpcklwd $f3, $f26, $f28 \n\t"
393  "punpckhwd $f7, $f26, $f28 \n\t"
394  "punpcklwd $f11, $f27, $f29 \n\t"
395  "punpckhwd $f15, $f27, $f29 \n\t"
396  /* Store */
397  "gssqc1 $f1, $f0, 0x00(%[block]) \n\t"
398  "gssqc1 $f5, $f4, 0x10(%[block]) \n\t"
399  "gssqc1 $f9, $f8, 0x20(%[block]) \n\t"
400  "gssqc1 $f13, $f12, 0x30(%[block]) \n\t"
401  "gssqc1 $f3, $f2, 0x40(%[block]) \n\t"
402  "gssqc1 $f7, $f6, 0x50(%[block]) \n\t"
403  "gssqc1 $f11, $f10, 0x60(%[block]) \n\t"
404  "gssqc1 $f15, $f14, 0x70(%[block]) \n\t"
405 
406  : [block]"+&r"(block)
407  : [w_arr]"r"(W_arr)
408  : "memory"
409  );
410 
411  RECOVER_REG
412 }
413 
414 void ff_simple_idct_put_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
415 {
416  ff_simple_idct_8_mmi(block);
417  ff_put_pixels_clamped_mmi(block, dest, line_size);
418 }
419 void ff_simple_idct_add_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
420 {
421  ff_simple_idct_8_mmi(block);
422  ff_add_pixels_clamped_mmi(block, dest, line_size);
423 }
ff_simple_idct_8_mmi
void ff_simple_idct_8_mmi(int16_t *block)
Definition: simple_idct_mmi.c:56
ff_add_pixels_clamped_mmi
void ff_add_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:150
W4
#define W4
Definition: simple_idct_mmi.c:33
ff_simple_idct_put_8_mmi
void ff_simple_idct_put_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct_mmi.c:414
W1
#define W1
Definition: simple_idct_mmi.c:30
asmdefs.h
IDCT_COL_CASE1
#define IDCT_COL_CASE1(src, out1, out2)
constants.h
mmiutils.h
IDCT_COL_CASE2
#define IDCT_COL_CASE2(src1, src2, out1, out2)
W_arr
const int16_t W_arr[46]
Definition: simple_idct_mmi.c:42
W2
#define W2
Definition: simple_idct_mmi.c:31
RECOVER_REG
#define RECOVER_REG
recover register
Definition: mmiutils.h:232
W3
#define W3
Definition: simple_idct_mmi.c:32
W7
#define W7
Definition: simple_idct_mmi.c:36
ff_put_pixels_clamped_mmi
void ff_put_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:28
ff_simple_idct_add_8_mmi
void ff_simple_idct_add_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct_mmi.c:419
BACKUP_REG
#define BACKUP_REG
backup register
Definition: mmiutils.h:207
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:112
uint8_t
uint8_t
Definition: audio_convert.c:194
idctdsp_mips.h
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
W6
#define W6
Definition: simple_idct_mmi.c:35
W5
#define W5
Definition: simple_idct_mmi.c:34
IDCT_ROW_COND_DC
#define IDCT_ROW_COND_DC(src1, src2)
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