FFmpeg
simple_idct_mmi.c
Go to the documentation of this file.
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 #include "libavutil/mem_internal.h"
30 
31 #define W1 22725 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
32 #define W2 21407 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
33 #define W3 19266 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
34 #define W4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
35 #define W5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
36 #define W6 8867 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
37 #define W7 4520 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
38 
39 #define ROW_SHIFT 11
40 #define COL_SHIFT 20
41 #define DC_SHIFT 3
42 
43 DECLARE_ALIGNED(16, const int16_t, W_arr)[46] = {
44  W4, W2, W4, W6,
45  W1, W3, W5, W7,
46  W4, W6, -W4, -W2,
47  W3, -W7, -W1, -W5,
48  W4, -W6, -W4, W2,
49  W5, -W1, W7, W3,
50  W4, -W2, W4, -W6,
51  W7, -W5, W3, -W1,
52  1024, 0, 1024, 0, //ff_p32_1024 = 0x0000040000000400ULL
53  0, -1, -1, -1, //mask = 0xffffffffffff0000ULL
54  32, 32, 32, 32 //ff_p16_32 = 0x0020002000200020ULL
55 };
56 
57 void ff_simple_idct_8_mmi(int16_t *block)
58 {
59  DECLARE_VAR_ALL64;
60 
61  BACKUP_REG
62  __asm__ volatile (
63 
64 #define IDCT_ROW_COND_DC(src1, src2) \
65  "dmfc1 $11, "#src1" \n\t" \
66  "dmfc1 $12, "#src2" \n\t" \
67  "and $11, $11, $9 \n\t" \
68  "or $10, $11, $12 \n\t" \
69  "beqz $10, 1f \n\t" \
70  \
71  "punpcklhw $f30, "#src1", "#src2" \n\t" \
72  "punpckhhw $f31, "#src1", "#src2" \n\t" \
73  /* s6, s4, s2, s0 */ \
74  "punpcklhw "#src1", $f30, $f31 \n\t" \
75  /* s7, s5, s3, s1 */ \
76  "punpckhhw "#src2", $f30, $f31 \n\t" \
77  \
78  "pmaddhw $f30, "#src1", $f18 \n\t" \
79  "pmaddhw $f31, "#src2", $f19 \n\t" \
80  "paddw $f28, $f30, $f31 \n\t" \
81  "psubw $f29, $f30, $f31 \n\t" \
82  "punpcklwd $f30, $f28, $f29 \n\t" \
83  "punpckhwd $f31, $f28, $f29 \n\t" \
84  "paddw $f26, $f30, $f31 \n\t" \
85  "paddw $f26, $f26, $f16 \n\t" \
86  /* $f26: src[7], src[0] */ \
87  "psraw $f26, $f26, $f17 \n\t" \
88  \
89  "pmaddhw $f30, "#src1", $f20 \n\t" \
90  "pmaddhw $f31, "#src2", $f21 \n\t" \
91  "paddw $f28, $f30, $f31 \n\t" \
92  "psubw $f29, $f30, $f31 \n\t" \
93  "punpcklwd $f30, $f28, $f29 \n\t" \
94  "punpckhwd $f31, $f28, $f29 \n\t" \
95  "paddw $f27, $f30, $f31 \n\t" \
96  "paddw $f27, $f27, $f16 \n\t" \
97  /* $f27: src[6], src[1] */ \
98  "psraw $f27, $f27, $f17 \n\t" \
99  \
100  "pmaddhw $f30, "#src1", $f22 \n\t" \
101  "pmaddhw $f31, "#src2", $f23 \n\t" \
102  "paddw $f28, $f30, $f31 \n\t" \
103  "psubw $f29, $f30, $f31 \n\t" \
104  "punpcklwd $f30, $f28, $f29 \n\t" \
105  "punpckhwd $f31, $f28, $f29 \n\t" \
106  "paddw $f28, $f30, $f31 \n\t" \
107  "paddw $f28, $f28, $f16 \n\t" \
108  /* $f28: src[5], src[2] */ \
109  "psraw $f28, $f28, $f17 \n\t" \
110  \
111  "pmaddhw $f30, "#src1", $f24 \n\t" \
112  "pmaddhw $f31, "#src2", $f25 \n\t" \
113  "paddw "#src1", $f30, $f31 \n\t" \
114  "psubw "#src2", $f30, $f31 \n\t" \
115  "punpcklwd $f30, "#src1", "#src2" \n\t" \
116  "punpckhwd $f31, "#src1", "#src2" \n\t" \
117  "paddw $f29, $f30, $f31 \n\t" \
118  "paddw $f29, $f29, $f16 \n\t" \
119  /* $f29: src[4], src[3] */ \
120  "psraw $f29, $f29, $f17 \n\t" \
121  \
122  "punpcklhw "#src1", $f26, $f27 \n\t" \
123  "punpckhhw $f30, $f27, $f26 \n\t" \
124  "punpcklhw $f31, $f28, $f29 \n\t" \
125  "punpckhhw "#src2", $f29, $f28 \n\t" \
126  /* src[3], src[2], src[1], src[0] */ \
127  "punpcklwd "#src1", "#src1", $f31 \n\t" \
128  /* src[7], src[6], src[5], src[4] */ \
129  "punpcklwd "#src2", "#src2", $f30 \n\t" \
130  "j 2f \n\t" \
131  \
132  "1: \n\t" \
133  "li $10, 3 \n\t" \
134  "dmtc1 $10, $f30 \n\t" \
135  "psllh $f28, "#src1", $f30 \n\t" \
136  "dmtc1 $9, $f31 \n\t" \
137  "punpcklhw $f29, $f28, $f28 \n\t" \
138  "pand $f29, $f29, $f31 \n\t" \
139  "paddw $f28, $f28, $f29 \n\t" \
140  "punpcklwd "#src1", $f28, $f28 \n\t" \
141  "punpcklwd "#src2", $f28, $f28 \n\t" \
142  "2: \n\t" \
143 
144  /* idctRowCondDC row0~8 */
145 
146  /* load W */
147  MMI_LQC1($f19, $f18, %[w_arr], 0x00)
148  MMI_LQC1($f21, $f20, %[w_arr], 0x10)
149  MMI_LQC1($f23, $f22, %[w_arr], 0x20)
150  MMI_LQC1($f25, $f24, %[w_arr], 0x30)
151  MMI_LQC1($f17, $f16, %[w_arr], 0x40)
152  /* load source in block */
153  MMI_LQC1($f1, $f0, %[block], 0x00)
154  MMI_LQC1($f3, $f2, %[block], 0x10)
155  MMI_LQC1($f5, $f4, %[block], 0x20)
156  MMI_LQC1($f7, $f6, %[block], 0x30)
157  MMI_LQC1($f9, $f8, %[block], 0x40)
158  MMI_LQC1($f11, $f10, %[block], 0x50)
159  MMI_LQC1($f13, $f12, %[block], 0x60)
160  MMI_LQC1($f15, $f14, %[block], 0x70)
161 
162  /* $9: mask ; $f17: ROW_SHIFT */
163  "dmfc1 $9, $f17 \n\t"
164  "li $10, 11 \n\t"
165  "mtc1 $10, $f17 \n\t"
166  IDCT_ROW_COND_DC($f0,$f1)
167  IDCT_ROW_COND_DC($f2,$f3)
168  IDCT_ROW_COND_DC($f4,$f5)
169  IDCT_ROW_COND_DC($f6,$f7)
170  IDCT_ROW_COND_DC($f8,$f9)
171  IDCT_ROW_COND_DC($f10,$f11)
172  IDCT_ROW_COND_DC($f12,$f13)
173  IDCT_ROW_COND_DC($f14,$f15)
174 
175 #define IDCT_COL_CASE1(src, out1, out2) \
176  "pmaddhw $f26, "#src", $f18 \n\t" \
177  "pmaddhw $f27, "#src", $f20 \n\t" \
178  "pmaddhw $f28, "#src", $f22 \n\t" \
179  "pmaddhw $f29, "#src", $f24 \n\t" \
180  \
181  "punpcklwd $f30, $f26, $f26 \n\t" \
182  "punpckhwd $f31, $f26, $f26 \n\t" \
183  /* $f26: src[0], src[56] */ \
184  "paddw $f26, $f30, $f31 \n\t" \
185  "punpcklwd $f30, $f27, $f27 \n\t" \
186  "punpckhwd $f31, $f27, $f27 \n\t" \
187  /* $f27: src[8], src[48] */ \
188  "paddw $f27, $f30, $f31 \n\t" \
189  "punpcklwd $f30, $f28, $f28 \n\t" \
190  "punpckhwd $f31, $f28, $f28 \n\t" \
191  /* $f28: src[16], src[40] */ \
192  "paddw $f28, $f30, $f31 \n\t" \
193  "punpcklwd $f30, $f29, $f29 \n\t" \
194  "punpckhwd $f31, $f29, $f29 \n\t" \
195  /* $f29: src[24], src[32] */ \
196  "paddw $f29, $f30, $f31 \n\t" \
197  \
198  /* out1: src[24], src[16], src[8], src[0] */ \
199  /* out2: src[56], src[48], src[40], src[32] */ \
200  "punpcklhw $f30, $f26, $f27 \n\t" \
201  "punpcklhw $f31, $f28, $f29 \n\t" \
202  "punpckhwd "#out1", $f30, $f31 \n\t" \
203  "psrah "#out1", "#out1", $f16 \n\t" \
204  "punpcklhw $f30, $f27, $f26 \n\t" \
205  "punpcklhw $f31, $f29, $f28 \n\t" \
206  "punpckhwd "#out2", $f31, $f30 \n\t" \
207  "psrah "#out2", "#out2", $f16 \n\t"
208 
209 #define IDCT_COL_CASE2(src1, src2, out1, out2) \
210  "pmaddhw $f28, "#src1", $f18 \n\t" \
211  "pmaddhw $f29, "#src2", $f19 \n\t" \
212  "paddw $f30, $f28, $f29 \n\t" \
213  "psubw $f31, $f28, $f29 \n\t" \
214  "punpcklwd $f28, $f30, $f31 \n\t" \
215  "punpckhwd $f29, $f30, $f31 \n\t" \
216  "pmaddhw $f30, "#src1", $f20 \n\t" \
217  "pmaddhw $f31, "#src2", $f21 \n\t" \
218  /* $f26: src[0], src[56] */ \
219  "paddw $f26, $f28, $f29 \n\t" \
220  "paddw $f28, $f30, $f31 \n\t" \
221  "psubw $f29, $f30, $f31 \n\t" \
222  "punpcklwd $f30, $f28, $f29 \n\t" \
223  "punpckhwd $f31, $f28, $f29 \n\t" \
224  "pmaddhw $f28, "#src1", $f22 \n\t" \
225  "pmaddhw $f29, "#src2", $f23 \n\t" \
226  /* $f27: src[8], src[48] */ \
227  "paddw $f27, $f30, $f31 \n\t" \
228  "paddw $f30, $f28, $f29 \n\t" \
229  "psubw $f31, $f28, $f29 \n\t" \
230  "punpcklwd $f28, $f30, $f31 \n\t" \
231  "punpckhwd $f29, $f30, $f31 \n\t" \
232  "pmaddhw $f30, "#src1", $f24 \n\t" \
233  "pmaddhw $f31, "#src2", $f25 \n\t" \
234  /* $f28: src[16], src[40] */ \
235  "paddw $f28, $f28, $f29 \n\t" \
236  "paddw "#out1", $f30, $f31 \n\t" \
237  "psubw "#out2", $f30, $f31 \n\t" \
238  "punpcklwd $f30, "#out1", "#out2" \n\t" \
239  "punpckhwd $f31, "#out1", "#out2" \n\t" \
240  /* $f29: src[24], src[32] */ \
241  "paddw $f29, $f30, $f31 \n\t" \
242  \
243  /* out1: src[24], src[16], src[8], src[0] */ \
244  /* out2: src[56], src[48], src[40], src[32] */ \
245  "punpcklhw "#out1", $f26, $f27 \n\t" \
246  "punpckhhw "#out2", $f27, $f26 \n\t" \
247  "punpcklhw $f30, $f28, $f29 \n\t" \
248  "punpckhhw $f31, $f29, $f28 \n\t" \
249  "punpckhwd "#out1", "#out1", $f30 \n\t" \
250  "punpckhwd "#out2", $f31, "#out2" \n\t" \
251  "psrah "#out1", "#out1", $f16 \n\t" \
252  "psrah "#out2", "#out2", $f16 \n\t"
253 
254 
255  /* idctSparseCol col0~3 */
256 
257  /* $f17: ff_p16_32; $f16: COL_SHIFT-16 */
258  MMI_ULDC1($f17, %[w_arr], 0x50)
259  "li $10, 4 \n\t"
260  "dmtc1 $10, $f16 \n\t"
261  "paddh $f0, $f0, $f17 \n\t"
262  /* Transpose row[0,2,4,6] */
263  "punpcklhw $f26, $f0, $f4 \n\t"
264  "punpckhhw $f27, $f0, $f4 \n\t"
265  "punpcklhw $f28, $f8, $f12 \n\t"
266  "punpckhhw $f29, $f8, $f12 \n\t"
267  "punpcklwd $f0, $f26, $f28 \n\t"
268  "punpckhwd $f4, $f26, $f28 \n\t"
269  "punpcklwd $f8, $f27, $f29 \n\t"
270  "punpckhwd $f12, $f27, $f29 \n\t"
271 
272  "por $f26, $f2, $f6 \n\t"
273  "por $f26, $f26, $f10 \n\t"
274  "por $f26, $f26, $f14 \n\t"
275  "dmfc1 $10, $f26 \n\t"
276  "bnez $10, 1f \n\t"
277  /* case1: In this case, row[1,3,5,7] are all zero */
278  /* col0: $f0: col[24,16,8,0]; $f2: col[56,48,40,32] */
279  IDCT_COL_CASE1($f0, $f0, $f2)
280  /* col1: $f4: col[25,17,9,1]; $f6: col[57,49,41,33] */
281  IDCT_COL_CASE1($f4, $f4, $f6)
282  /* col2: $f8: col[26,18,10,2]; $f10: col[58,50,42,34] */
283  IDCT_COL_CASE1($f8, $f8, $f10)
284  /* col3: $f12: col[27,19,11,3]; $f14: col[59,51,43,35] */
285  IDCT_COL_CASE1($f12, $f12, $f14)
286  "j 2f \n\t"
287 
288  "1: \n\t"
289  /* case2: row[1,3,5,7] are not all zero */
290  /* Transpose */
291  "punpcklhw $f26, $f2, $f6 \n\t"
292  "punpckhhw $f27, $f2, $f6 \n\t"
293  "punpcklhw $f28, $f10, $f14 \n\t"
294  "punpckhhw $f29, $f10, $f14 \n\t"
295  "punpcklwd $f2, $f26, $f28 \n\t"
296  "punpckhwd $f6, $f26, $f28 \n\t"
297  "punpcklwd $f10, $f27, $f29 \n\t"
298  "punpckhwd $f14, $f27, $f29 \n\t"
299 
300  /* col0: $f0: col[24,16,8,0]; $f2: col[56,48,40,32] */
301  IDCT_COL_CASE2($f0, $f2, $f0, $f2)
302  /* col1: $f4: col[25,17,9,1]; $f6: col[57,49,41,33] */
303  IDCT_COL_CASE2($f4, $f6, $f4, $f6)
304  /* col2: $f8: col[26,18,10,2]; $f10: col[58,50,42,34] */
305  IDCT_COL_CASE2($f8, $f10, $f8, $f10)
306  /* col3: $f12: col[27,19,11,3]; $f14: col[59,51,43,35] */
307  IDCT_COL_CASE2($f12, $f14, $f12, $f14)
308 
309  "2: \n\t"
310  /* Transpose */
311  "punpcklhw $f26, $f0, $f4 \n\t"
312  "punpckhhw $f27, $f0, $f4 \n\t"
313  "punpcklhw $f28, $f8, $f12 \n\t"
314  "punpckhhw $f29, $f8, $f12 \n\t"
315  "punpcklwd $f0, $f26, $f28 \n\t"
316  "punpckhwd $f4, $f26, $f28 \n\t"
317  "punpcklwd $f8, $f27, $f29 \n\t"
318  "punpckhwd $f12, $f27, $f29 \n\t"
319  /* Transpose */
320  "punpcklhw $f26, $f2, $f6 \n\t"
321  "punpckhhw $f27, $f2, $f6 \n\t"
322  "punpcklhw $f28, $f10, $f14 \n\t"
323  "punpckhhw $f29, $f10, $f14 \n\t"
324  "punpcklwd $f2, $f26, $f28 \n\t"
325  "punpckhwd $f6, $f26, $f28 \n\t"
326  "punpcklwd $f10, $f27, $f29 \n\t"
327  "punpckhwd $f14, $f27, $f29 \n\t"
328 
329  /* idctSparseCol col4~7 */
330 
331  "paddh $f1, $f1, $f17 \n\t"
332  /* Transpose */
333  "punpcklhw $f26, $f1, $f5 \n\t"
334  "punpckhhw $f27, $f1, $f5 \n\t"
335  "punpcklhw $f28, $f9, $f13 \n\t"
336  "punpckhhw $f29, $f9, $f13 \n\t"
337  "punpcklwd $f1, $f26, $f28 \n\t"
338  "punpckhwd $f5, $f26, $f28 \n\t"
339  "punpcklwd $f9, $f27, $f29 \n\t"
340  "punpckhwd $f13, $f27, $f29 \n\t"
341 
342  "por $f26, $f3, $f7 \n\t"
343  "por $f26, $f26, $f11 \n\t"
344  "por $f26, $f26, $f15 \n\t"
345  "dmfc1 $10, $f26 \n\t"
346  "bnez $10, 1f \n\t"
347  /* case1: In this case, row[1,3,5,7] are all zero */
348  /* col4: $f1: col[24,16,8,0]; $f3: col[56,48,40,32] */
349  IDCT_COL_CASE1($f1, $f1, $f3)
350  /* col5: $f5: col[25,17,9,1]; $f7: col[57,49,41,33] */
351  IDCT_COL_CASE1($f5, $f5, $f7)
352  /* col6: $f9: col[26,18,10,2]; $f11: col[58,50,42,34] */
353  IDCT_COL_CASE1($f9, $f9, $f11)
354  /* col7: $f13: col[27,19,11,3]; $f15: col[59,51,43,35] */
355  IDCT_COL_CASE1($f13, $f13, $f15)
356  "j 2f \n\t"
357 
358  "1: \n\t"
359  /* case2: row[1,3,5,7] are not all zero */
360  /* Transpose */
361  "punpcklhw $f26, $f3, $f7 \n\t"
362  "punpckhhw $f27, $f3, $f7 \n\t"
363  "punpcklhw $f28, $f11, $f15 \n\t"
364  "punpckhhw $f29, $f11, $f15 \n\t"
365  "punpcklwd $f3, $f26, $f28 \n\t"
366  "punpckhwd $f7, $f26, $f28 \n\t"
367  "punpcklwd $f11, $f27, $f29 \n\t"
368  "punpckhwd $f15, $f27, $f29 \n\t"
369 
370  /* col4: $f1: col[24,16,8,0]; $f3: col[56,48,40,32] */
371  IDCT_COL_CASE2($f1, $f3, $f1, $f3)
372  /* col5: $f5: col[25,17,9,1]; $f7: col[57,49,41,33] */
373  IDCT_COL_CASE2($f5, $f7, $f5, $f7)
374  /* col6: $f9: col[26,18,10,2]; $f11: col[58,50,42,34] */
375  IDCT_COL_CASE2($f9, $f11, $f9, $f11)
376  /* col7: $f13: col[27,19,11,3]; $f15: col[59,51,43,35] */
377  IDCT_COL_CASE2($f13, $f15, $f13, $f15)
378 
379  "2: \n\t"
380  /* Transpose */
381  "punpcklhw $f26, $f1, $f5 \n\t"
382  "punpckhhw $f27, $f1, $f5 \n\t"
383  "punpcklhw $f28, $f9, $f13 \n\t"
384  "punpckhhw $f29, $f9, $f13 \n\t"
385  "punpcklwd $f1, $f26, $f28 \n\t"
386  "punpckhwd $f5, $f26, $f28 \n\t"
387  "punpcklwd $f9, $f27, $f29 \n\t"
388  "punpckhwd $f13, $f27, $f29 \n\t"
389  /* Transpose */
390  "punpcklhw $f26, $f3, $f7 \n\t"
391  "punpckhhw $f27, $f3, $f7 \n\t"
392  "punpcklhw $f28, $f11, $f15 \n\t"
393  "punpckhhw $f29, $f11, $f15 \n\t"
394  "punpcklwd $f3, $f26, $f28 \n\t"
395  "punpckhwd $f7, $f26, $f28 \n\t"
396  "punpcklwd $f11, $f27, $f29 \n\t"
397  "punpckhwd $f15, $f27, $f29 \n\t"
398  /* Store */
399  MMI_SQC1($f1, $f0, %[block], 0x00)
400  MMI_SQC1($f5, $f4, %[block], 0x10)
401  MMI_SQC1($f9, $f8, %[block], 0x20)
402  MMI_SQC1($f13, $f12, %[block], 0x30)
403  MMI_SQC1($f3, $f2, %[block], 0x40)
404  MMI_SQC1($f7, $f6, %[block], 0x50)
405  MMI_SQC1($f11, $f10, %[block], 0x60)
406  MMI_SQC1($f15, $f14, %[block], 0x70)
407 
408  : RESTRICT_ASM_ALL64 [block]"+&r"(block)
409  : [w_arr]"r"(W_arr)
410  : "memory"
411  );
412 
413  RECOVER_REG
414 }
415 
416 void ff_simple_idct_put_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
417 {
418  ff_simple_idct_8_mmi(block);
419  ff_put_pixels_clamped_mmi(block, dest, line_size);
420 }
421 void ff_simple_idct_add_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
422 {
423  ff_simple_idct_8_mmi(block);
424  ff_add_pixels_clamped_mmi(block, dest, line_size);
425 }
ff_simple_idct_8_mmi
void ff_simple_idct_8_mmi(int16_t *block)
Definition: simple_idct_mmi.c:57
mem_internal.h
W4
#define W4
Definition: simple_idct_mmi.c:34
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:416
W1
#define W1
Definition: simple_idct_mmi.c:31
ff_add_pixels_clamped_mmi
void ff_add_pixels_clamped_mmi(const int16_t *block, uint8_t *restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:150
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:43
W2
#define W2
Definition: simple_idct_mmi.c:32
RECOVER_REG
#define RECOVER_REG
recover register
Definition: mmiutils.h:260
W3
#define W3
Definition: simple_idct_mmi.c:33
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:109
W7
#define W7
Definition: simple_idct_mmi.c:37
DECLARE_VAR_ALL64
#define DECLARE_VAR_ALL64
Definition: mmiutils.h:39
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:421
BACKUP_REG
#define BACKUP_REG
Backup saved registers We're not using compiler's clobber list as it's not smart enough to take advan...
Definition: mmiutils.h:235
__asm__
__asm__(".macro parse_r var r\n\t" "\\var = -1\n\t" _IFC_REG(0) _IFC_REG(1) _IFC_REG(2) _IFC_REG(3) _IFC_REG(4) _IFC_REG(5) _IFC_REG(6) _IFC_REG(7) _IFC_REG(8) _IFC_REG(9) _IFC_REG(10) _IFC_REG(11) _IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15) _IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19) _IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23) _IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27) _IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31) ".iflt \\var\n\t" ".error \"Unable to parse register name \\r\"\n\t" ".endif\n\t" ".endm")
ff_put_pixels_clamped_mmi
void ff_put_pixels_clamped_mmi(const int16_t *block, uint8_t *restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:28
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:36
W5
#define W5
Definition: simple_idct_mmi.c:35
RESTRICT_ASM_ALL64
#define RESTRICT_ASM_ALL64
Definition: mmiutils.h:40
IDCT_ROW_COND_DC
#define IDCT_ROW_COND_DC(src1, src2)
Generated on Thu Sep 26 2024 23:15:09 for FFmpeg by   doxygen 1.8.17