postprocess_altivec_template.c@ 10179

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1	/*
2	AltiVec optimizations (C) 2004 Romain Dolbeau <[email protected]>
3
4	based on code by Copyright (C) 2001-2003 Michael Niedermayer ([email protected])
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.
10
11	This program 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
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19	*/
20
21
22	#ifdef CONFIG_DARWIN
23	#define AVV(x...) (x)
24	#else
25	#define AVV(x...) {x}
26	#endif
27
28	#define ALTIVEC_TRANSPOSE_8x8_SHORT(src_a,src_b,src_c,src_d,src_e,src_f,src_g,src_h) \
29	do { \
30	__typeof__(src_a) tempA1, tempB1, tempC1, tempD1; \
31	__typeof__(src_a) tempE1, tempF1, tempG1, tempH1; \
32	__typeof__(src_a) tempA2, tempB2, tempC2, tempD2; \
33	__typeof__(src_a) tempE2, tempF2, tempG2, tempH2; \
34	tempA1 = vec_mergeh (src_a, src_e); \
35	tempB1 = vec_mergel (src_a, src_e); \
36	tempC1 = vec_mergeh (src_b, src_f); \
37	tempD1 = vec_mergel (src_b, src_f); \
38	tempE1 = vec_mergeh (src_c, src_g); \
39	tempF1 = vec_mergel (src_c, src_g); \
40	tempG1 = vec_mergeh (src_d, src_h); \
41	tempH1 = vec_mergel (src_d, src_h); \
42	tempA2 = vec_mergeh (tempA1, tempE1); \
43	tempB2 = vec_mergel (tempA1, tempE1); \
44	tempC2 = vec_mergeh (tempB1, tempF1); \
45	tempD2 = vec_mergel (tempB1, tempF1); \
46	tempE2 = vec_mergeh (tempC1, tempG1); \
47	tempF2 = vec_mergel (tempC1, tempG1); \
48	tempG2 = vec_mergeh (tempD1, tempH1); \
49	tempH2 = vec_mergel (tempD1, tempH1); \
50	src_a = vec_mergeh (tempA2, tempE2); \
51	src_b = vec_mergel (tempA2, tempE2); \
52	src_c = vec_mergeh (tempB2, tempF2); \
53	src_d = vec_mergel (tempB2, tempF2); \
54	src_e = vec_mergeh (tempC2, tempG2); \
55	src_f = vec_mergel (tempC2, tempG2); \
56	src_g = vec_mergeh (tempD2, tempH2); \
57	src_h = vec_mergel (tempD2, tempH2); \
58	} while (0)
59
60
61	static inline int vertClassify_altivec(uint8_t src[], int stride, PPContext *c) {
62	/*
63	this code makes no assumption on src or stride.
64	One could remove the recomputation of the perm
65	vector by assuming (stride % 16) == 0, unfortunately
66	this is not always true.
67	*/
68	register int y;
69	short __attribute__ ((aligned(16))) data[8];
70	int numEq;
71	uint8_t *src2 = src;
72	vector signed short v_dcOffset;
73	vector signed short v2QP;
74	vector unsigned short v4QP;
75	vector unsigned short v_dcThreshold;
76	const int properStride = (stride % 16);
77	const int srcAlign = ((unsigned long)src2 % 16);
78	const int two_vectors = ((srcAlign > 8) \|\| properStride) ? 1 : 0;
79	const vector signed int zero = vec_splat_s32(0);
80	const vector signed short mask = vec_splat_s16(1);
81	vector signed int v_numEq = vec_splat_s32(0);
82
83	data[0] = ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
84	data[1] = data[0] * 2 + 1;
85	data[2] = c->QP * 2;
86	data[3] = c->QP * 4;
87	vector signed short v_data = vec_ld(0, data);
88	v_dcOffset = vec_splat(v_data, 0);
89	v_dcThreshold = (vector unsigned short)vec_splat(v_data, 1);
90	v2QP = vec_splat(v_data, 2);
91	v4QP = (vector unsigned short)vec_splat(v_data, 3);
92
93	src2 += stride * 4;
94
95	vector signed short v_srcAss0, v_srcAss1, v_srcAss2, v_srcAss3, v_srcAss4, v_srcAss5, v_srcAss6, v_srcAss7;
96
97	#define LOAD_LINE(i) \
98	register int j##i = i * stride; \
99	vector unsigned char perm##i = vec_lvsl(j##i, src2); \
100	const vector unsigned char v_srcA1##i = vec_ld(j##i, src2); \
101	vector unsigned char v_srcA2##i; \
102	if (two_vectors) \
103	v_srcA2##i = vec_ld(j##i + 16, src2); \
104	const vector unsigned char v_srcA##i = \
105	vec_perm(v_srcA1##i, v_srcA2##i, perm##i); \
106	v_srcAss##i = \
107	(vector signed short)vec_mergeh((vector signed char)zero, \
108	(vector signed char)v_srcA##i)
109
110	#define LOAD_LINE_ALIGNED(i) \
111	register int j##i = i * stride; \
112	const vector unsigned char v_srcA##i = vec_ld(j##i, src2); \
113	v_srcAss##i = \
114	(vector signed short)vec_mergeh((vector signed char)zero, \
115	(vector signed char)v_srcA##i)
116
117	// special casing the aligned case is worthwhile, as all call from
118	// the (transposed) horizontable deblocks will be aligned, i naddition
119	// to the naturraly aligned vertical deblocks.
120	if (properStride && srcAlign) {
121	LOAD_LINE_ALIGNED(0);
122	LOAD_LINE_ALIGNED(1);
123	LOAD_LINE_ALIGNED(2);
124	LOAD_LINE_ALIGNED(3);
125	LOAD_LINE_ALIGNED(4);
126	LOAD_LINE_ALIGNED(5);
127	LOAD_LINE_ALIGNED(6);
128	LOAD_LINE_ALIGNED(7);
129	} else {
130	LOAD_LINE(0);
131	LOAD_LINE(1);
132	LOAD_LINE(2);
133	LOAD_LINE(3);
134	LOAD_LINE(4);
135	LOAD_LINE(5);
136	LOAD_LINE(6);
137	LOAD_LINE(7);
138	}
139	#undef LOAD_LINE
140	#undef LOAD_LINE_ALIGNED
141
142	#define ITER(i, j) \
143	const vector signed short v_diff##i = \
144	vec_sub(v_srcAss##i, v_srcAss##j); \
145	const vector signed short v_sum##i = \
146	vec_add(v_diff##i, v_dcOffset); \
147	const vector signed short v_comp##i = \
148	(vector signed short)vec_cmplt((vector unsigned short)v_sum##i, \
149	v_dcThreshold); \
150	const vector signed short v_part##i = vec_and(mask, v_comp##i); \
151	v_numEq = vec_sum4s(v_part##i, v_numEq);
152
153	ITER(0, 1);
154	ITER(1, 2);
155	ITER(2, 3);
156	ITER(3, 4);
157	ITER(4, 5);
158	ITER(5, 6);
159	ITER(6, 7);
160	#undef ITER
161
162	v_numEq = vec_sums(v_numEq, zero);
163
164	v_numEq = vec_splat(v_numEq, 3);
165	vec_ste(v_numEq, 0, &numEq);
166
167	if (numEq > c->ppMode.flatnessThreshold)
168	{
169	const vector unsigned char mmoP1 = (const vector unsigned char)
170	AVV(0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f,
171	0x00, 0x01, 0x12, 0x13, 0x08, 0x09, 0x1A, 0x1B);
172	const vector unsigned char mmoP2 = (const vector unsigned char)
173	AVV(0x04, 0x05, 0x16, 0x17, 0x0C, 0x0D, 0x1E, 0x1F,
174	0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
175	const vector unsigned char mmoP = (const vector unsigned char)
176	vec_lvsl(8, (unsigned char*)0);
177
178	vector signed short mmoL1 = vec_perm(v_srcAss0, v_srcAss2, mmoP1);
179	vector signed short mmoL2 = vec_perm(v_srcAss4, v_srcAss6, mmoP2);
180	vector signed short mmoL = vec_perm(mmoL1, mmoL2, mmoP);
181	vector signed short mmoR1 = vec_perm(v_srcAss5, v_srcAss7, mmoP1);
182	vector signed short mmoR2 = vec_perm(v_srcAss1, v_srcAss3, mmoP2);
183	vector signed short mmoR = vec_perm(mmoR1, mmoR2, mmoP);
184	vector signed short mmoDiff = vec_sub(mmoL, mmoR);
185	vector unsigned short mmoSum = (vector unsigned short)vec_add(mmoDiff, v2QP);
186
187	if (vec_any_gt(mmoSum, v4QP))
188	return 0;
189	else
190	return 1;
191	}
192	else return 2;
193	}
194
195	static inline void doVertLowPass_altivec(uint8_t src, int stride, PPContext c) {
196	/*
197	this code makes no assumption on src or stride.
198	One could remove the recomputation of the perm
199	vector by assuming (stride % 16) == 0, unfortunately
200	this is not always true. Quite a lot of load/stores
201	can be removed by assuming proper alignement of
202	src & stride :-(
203	*/
204	uint8_t *src2 = src;
205	const vector signed int zero = vec_splat_s32(0);
206	const int properStride = (stride % 16);
207	const int srcAlign = ((unsigned long)src2 % 16);
208	short __attribute__ ((aligned(16))) qp[8];
209	qp[0] = c->QP;
210	vector signed short vqp = vec_ld(0, qp);
211	vqp = vec_splat(vqp, 0);
212
213	src2 += stride*3;
214
215	vector signed short vb0, vb1, vb2, vb3, vb4, vb5, vb6, vb7, vb8, vb9;
216	vector unsigned char vbA0, vbA1, vbA2, vbA3, vbA4, vbA5, vbA6, vbA7, vbA8, vbA9;
217	vector unsigned char vbB0, vbB1, vbB2, vbB3, vbB4, vbB5, vbB6, vbB7, vbB8, vbB9;
218	vector unsigned char vbT0, vbT1, vbT2, vbT3, vbT4, vbT5, vbT6, vbT7, vbT8, vbT9;
219
220	#define LOAD_LINE(i) \
221	const vector unsigned char perml##i = \
222	vec_lvsl(i * stride, src2); \
223	vbA##i = vec_ld(i * stride, src2); \
224	vbB##i = vec_ld(i * stride + 16, src2); \
225	vbT##i = vec_perm(vbA##i, vbB##i, perml##i); \
226	vb##i = \
227	(vector signed short)vec_mergeh((vector unsigned char)zero, \
228	(vector unsigned char)vbT##i)
229
230	#define LOAD_LINE_ALIGNED(i) \
231	register int j##i = i * stride; \
232	vbT##i = vec_ld(j##i, src2); \
233	vb##i = \
234	(vector signed short)vec_mergeh((vector signed char)zero, \
235	(vector signed char)vbT##i)
236
237	// special casing the aligned case is worthwhile, as all call from
238	// the (transposed) horizontable deblocks will be aligned, in addition
239	// to the naturraly aligned vertical deblocks.
240	if (properStride && srcAlign) {
241	LOAD_LINE_ALIGNED(0);
242	LOAD_LINE_ALIGNED(1);
243	LOAD_LINE_ALIGNED(2);
244	LOAD_LINE_ALIGNED(3);
245	LOAD_LINE_ALIGNED(4);
246	LOAD_LINE_ALIGNED(5);
247	LOAD_LINE_ALIGNED(6);
248	LOAD_LINE_ALIGNED(7);
249	LOAD_LINE_ALIGNED(8);
250	LOAD_LINE_ALIGNED(9);
251	} else {
252	LOAD_LINE(0);
253	LOAD_LINE(1);
254	LOAD_LINE(2);
255	LOAD_LINE(3);
256	LOAD_LINE(4);
257	LOAD_LINE(5);
258	LOAD_LINE(6);
259	LOAD_LINE(7);
260	LOAD_LINE(8);
261	LOAD_LINE(9);
262	}
263	#undef LOAD_LINE
264	#undef LOAD_LINE_ALIGNED
265
266	const vector unsigned short v_1 = vec_splat_u16(1);
267	const vector unsigned short v_2 = vec_splat_u16(2);
268	const vector unsigned short v_4 = vec_splat_u16(4);
269
270	const vector signed short v_diff01 = vec_sub(vb0, vb1);
271	const vector unsigned short v_cmp01 =
272	(const vector unsigned short) vec_cmplt(vec_abs(v_diff01), vqp);
273	const vector signed short v_first = vec_sel(vb1, vb0, v_cmp01);
274	const vector signed short v_diff89 = vec_sub(vb8, vb9);
275	const vector unsigned short v_cmp89 =
276	(const vector unsigned short) vec_cmplt(vec_abs(v_diff89), vqp);
277	const vector signed short v_last = vec_sel(vb8, vb9, v_cmp89);
278
279	const vector signed short temp01 = vec_mladd(v_first, (vector signed short)v_4, vb1);
280	const vector signed short temp02 = vec_add(vb2, vb3);
281	const vector signed short temp03 = vec_add(temp01, (vector signed short)v_4);
282	const vector signed short v_sumsB0 = vec_add(temp02, temp03);
283
284	const vector signed short temp11 = vec_sub(v_sumsB0, v_first);
285	const vector signed short v_sumsB1 = vec_add(temp11, vb4);
286
287	const vector signed short temp21 = vec_sub(v_sumsB1, v_first);
288	const vector signed short v_sumsB2 = vec_add(temp21, vb5);
289
290	const vector signed short temp31 = vec_sub(v_sumsB2, v_first);
291	const vector signed short v_sumsB3 = vec_add(temp31, vb6);
292
293	const vector signed short temp41 = vec_sub(v_sumsB3, v_first);
294	const vector signed short v_sumsB4 = vec_add(temp41, vb7);
295
296	const vector signed short temp51 = vec_sub(v_sumsB4, vb1);
297	const vector signed short v_sumsB5 = vec_add(temp51, vb8);
298
299	const vector signed short temp61 = vec_sub(v_sumsB5, vb2);
300	const vector signed short v_sumsB6 = vec_add(temp61, v_last);
301
302	const vector signed short temp71 = vec_sub(v_sumsB6, vb3);
303	const vector signed short v_sumsB7 = vec_add(temp71, v_last);
304
305	const vector signed short temp81 = vec_sub(v_sumsB7, vb4);
306	const vector signed short v_sumsB8 = vec_add(temp81, v_last);
307
308	const vector signed short temp91 = vec_sub(v_sumsB8, vb5);
309	const vector signed short v_sumsB9 = vec_add(temp91, v_last);
310
311	#define COMPUTE_VR(i, j, k) \
312	const vector signed short temps1##i = \
313	vec_add(v_sumsB##i, v_sumsB##k); \
314	const vector signed short temps2##i = \
315	vec_mladd(vb##j, (vector signed short)v_2, temps1##i); \
316	const vector signed short vr##j = vec_sra(temps2##i, v_4)
317
318	COMPUTE_VR(0, 1, 2);
319	COMPUTE_VR(1, 2, 3);
320	COMPUTE_VR(2, 3, 4);
321	COMPUTE_VR(3, 4, 5);
322	COMPUTE_VR(4, 5, 6);
323	COMPUTE_VR(5, 6, 7);
324	COMPUTE_VR(6, 7, 8);
325	COMPUTE_VR(7, 8, 9);
326
327	const vector signed char neg1 = vec_splat_s8(-1);
328	const vector unsigned char permHH = (const vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
329	0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F);
330
331	#define PACK_AND_STORE(i) \
332	const vector unsigned char perms##i = \
333	vec_lvsr(i * stride, src2); \
334	const vector unsigned char vf##i = \
335	vec_packsu(vr##i, (vector signed short)zero); \
336	const vector unsigned char vg##i = \
337	vec_perm(vf##i, vbT##i, permHH); \
338	const vector unsigned char mask##i = \
339	vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \
340	const vector unsigned char vg2##i = \
341	vec_perm(vg##i, vg##i, perms##i); \
342	const vector unsigned char svA##i = \
343	vec_sel(vbA##i, vg2##i, mask##i); \
344	const vector unsigned char svB##i = \
345	vec_sel(vg2##i, vbB##i, mask##i); \
346	vec_st(svA##i, i * stride, src2); \
347	vec_st(svB##i, i * stride + 16, src2)
348
349	#define PACK_AND_STORE_ALIGNED(i) \
350	const vector unsigned char vf##i = \
351	vec_packsu(vr##i, (vector signed short)zero); \
352	const vector unsigned char vg##i = \
353	vec_perm(vf##i, vbT##i, permHH); \
354	vec_st(vg##i, i * stride, src2)
355
356	// special casing the aligned case is worthwhile, as all call from
357	// the (transposed) horizontable deblocks will be aligned, in addition
358	// to the naturraly aligned vertical deblocks.
359	if (properStride && srcAlign) {
360	PACK_AND_STORE_ALIGNED(1);
361	PACK_AND_STORE_ALIGNED(2);
362	PACK_AND_STORE_ALIGNED(3);
363	PACK_AND_STORE_ALIGNED(4);
364	PACK_AND_STORE_ALIGNED(5);
365	PACK_AND_STORE_ALIGNED(6);
366	PACK_AND_STORE_ALIGNED(7);
367	PACK_AND_STORE_ALIGNED(8);
368	} else {
369	PACK_AND_STORE(1);
370	PACK_AND_STORE(2);
371	PACK_AND_STORE(3);
372	PACK_AND_STORE(4);
373	PACK_AND_STORE(5);
374	PACK_AND_STORE(6);
375	PACK_AND_STORE(7);
376	PACK_AND_STORE(8);
377	}
378	#undef PACK_AND_STORE
379	#undef PACK_AND_STORE_ALIGNED
380	}
381
382
383
384	static inline void doVertDefFilter_altivec(uint8_t src[], int stride, PPContext *c) {
385	/*
386	this code makes no assumption on src or stride.
387	One could remove the recomputation of the perm
388	vector by assuming (stride % 16) == 0, unfortunately
389	this is not always true. Quite a lot of load/stores
390	can be removed by assuming proper alignement of
391	src & stride :-(
392	*/
393	uint8_t *src2 = src;
394	const vector signed int zero = vec_splat_s32(0);
395	short __attribute__ ((aligned(16))) qp[8];
396	qp[0] = 8*c->QP;
397	vector signed short vqp = vec_ld(0, qp);
398	vqp = vec_splat(vqp, 0);
399
400	#define LOAD_LINE(i) \
401	const vector unsigned char perm##i = \
402	vec_lvsl(i * stride, src2); \
403	const vector unsigned char vbA##i = \
404	vec_ld(i * stride, src2); \
405	const vector unsigned char vbB##i = \
406	vec_ld(i * stride + 16, src2); \
407	const vector unsigned char vbT##i = \
408	vec_perm(vbA##i, vbB##i, perm##i); \
409	const vector signed short vb##i = \
410	(vector signed short)vec_mergeh((vector unsigned char)zero, \
411	(vector unsigned char)vbT##i)
412
413	src2 += stride*3;
414
415	LOAD_LINE(1);
416	LOAD_LINE(2);
417	LOAD_LINE(3);
418	LOAD_LINE(4);
419	LOAD_LINE(5);
420	LOAD_LINE(6);
421	LOAD_LINE(7);
422	LOAD_LINE(8);
423	#undef LOAD_LINE
424
425	const vector signed short v_1 = vec_splat_s16(1);
426	const vector signed short v_2 = vec_splat_s16(2);
427	const vector signed short v_5 = vec_splat_s16(5);
428	const vector signed short v_32 = vec_sl(v_1,
429	(vector unsigned short)v_5);
430	/* middle energy */
431	const vector signed short l3minusl6 = vec_sub(vb3, vb6);
432	const vector signed short l5minusl4 = vec_sub(vb5, vb4);
433	const vector signed short twotimes_l3minusl6 = vec_mladd(v_2, l3minusl6, (vector signed short)zero);
434	const vector signed short mE = vec_mladd(v_5, l5minusl4, twotimes_l3minusl6);
435	const vector signed short absmE = vec_abs(mE);
436	/* left & right energy */
437	const vector signed short l1minusl4 = vec_sub(vb1, vb4);
438	const vector signed short l3minusl2 = vec_sub(vb3, vb2);
439	const vector signed short l5minusl8 = vec_sub(vb5, vb8);
440	const vector signed short l7minusl6 = vec_sub(vb7, vb6);
441	const vector signed short twotimes_l1minusl4 = vec_mladd(v_2, l1minusl4, (vector signed short)zero);
442	const vector signed short twotimes_l5minusl8 = vec_mladd(v_2, l5minusl8, (vector signed short)zero);
443	const vector signed short lE = vec_mladd(v_5, l3minusl2, twotimes_l1minusl4);
444	const vector signed short rE = vec_mladd(v_5, l7minusl6, twotimes_l5minusl8);
445	/* d */
446	const vector signed short ddiff = vec_sub(absmE,
447	vec_min(vec_abs(lE),
448	vec_abs(rE)));
449	const vector signed short ddiffclamp = vec_max(ddiff, (vector signed short)zero);
450	const vector signed short dtimes64 = vec_mladd(v_5, ddiffclamp, v_32);
451	const vector signed short d = vec_sra(dtimes64, vec_splat_u16(6));
452	const vector signed short minusd = vec_sub((vector signed short)zero, d);
453	const vector signed short finald = vec_sel(minusd,
454	d,
455	vec_cmpgt(vec_sub((vector signed short)zero, mE),
456	(vector signed short)zero));
457	/* q */
458	const vector signed short qtimes2 = vec_sub(vb4, vb5);
459	/* for a shift right to behave like /2, we need to add one
460	to all negative integer */
461	const vector signed short rounddown = vec_sel((vector signed short)zero,
462	v_1,
463	vec_cmplt(qtimes2, (vector signed short)zero));
464	const vector signed short q = vec_sra(vec_add(qtimes2, rounddown), vec_splat_u16(1));
465	/* clamp */
466	const vector signed short dclamp_P1 = vec_max((vector signed short)zero, finald);
467	const vector signed short dclamp_P = vec_min(dclamp_P1, q);
468	const vector signed short dclamp_N1 = vec_min((vector signed short)zero, finald);
469	const vector signed short dclamp_N = vec_max(dclamp_N1, q);
470
471	const vector signed short dclampedfinal = vec_sel(dclamp_N,
472	dclamp_P,
473	vec_cmpgt(q, (vector signed short)zero));
474	const vector signed short dornotd = vec_sel((vector signed short)zero,
475	dclampedfinal,
476	vec_cmplt(absmE, vqp));
477	/* add/substract to l4 and l5 */
478	const vector signed short vb4minusd = vec_sub(vb4, dornotd);
479	const vector signed short vb5plusd = vec_add(vb5, dornotd);
480	/* finally, stores */
481	const vector unsigned char st4 = vec_packsu(vb4minusd, (vector signed short)zero);
482	const vector unsigned char st5 = vec_packsu(vb5plusd, (vector signed short)zero);
483
484	const vector signed char neg1 = vec_splat_s8(-1);
485	const vector unsigned char permHH = (const vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
486	0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F);
487
488	#define STORE(i) \
489	const vector unsigned char perms##i = \
490	vec_lvsr(i * stride, src2); \
491	const vector unsigned char vg##i = \
492	vec_perm(st##i, vbT##i, permHH); \
493	const vector unsigned char mask##i = \
494	vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##i); \
495	const vector unsigned char vg2##i = \
496	vec_perm(vg##i, vg##i, perms##i); \
497	const vector unsigned char svA##i = \
498	vec_sel(vbA##i, vg2##i, mask##i); \
499	const vector unsigned char svB##i = \
500	vec_sel(vg2##i, vbB##i, mask##i); \
501	vec_st(svA##i, i * stride, src2); \
502	vec_st(svB##i, i * stride + 16, src2)
503
504	STORE(4);
505	STORE(5);
506	}
507
508	static inline void dering_altivec(uint8_t src[], int stride, PPContext *c) {
509	/*
510	this code makes no assumption on src or stride.
511	One could remove the recomputation of the perm
512	vector by assuming (stride % 16) == 0, unfortunately
513	this is not always true. Quite a lot of load/stores
514	can be removed by assuming proper alignement of
515	src & stride :-(
516	*/
517	uint8_t *srcCopy = src;
518	uint8_t __attribute__((aligned(16))) dt[16];
519	const vector unsigned char vuint8_1 = vec_splat_u8(1);
520	const vector signed int zero = vec_splat_s32(0);
521	vector unsigned char v_dt;
522	dt[0] = deringThreshold;
523	v_dt = vec_splat(vec_ld(0, dt), 0);
524
525	#define LOAD_LINE(i) \
526	const vector unsigned char perm##i = \
527	vec_lvsl(i * stride, srcCopy); \
528	vector unsigned char sA##i = vec_ld(i * stride, srcCopy); \
529	vector unsigned char sB##i = vec_ld(i * stride + 16, srcCopy); \
530	vector unsigned char src##i = vec_perm(sA##i, sB##i, perm##i)
531
532	LOAD_LINE(0);
533	LOAD_LINE(1);
534	LOAD_LINE(2);
535	LOAD_LINE(3);
536	LOAD_LINE(4);
537	LOAD_LINE(5);
538	LOAD_LINE(6);
539	LOAD_LINE(7);
540	LOAD_LINE(8);
541	LOAD_LINE(9);
542	#undef LOAD_LINE
543
544	vector unsigned char v_avg;
545	{
546	const vector unsigned char trunc_perm = (vector unsigned char)
547	AVV(0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
548	0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18);
549	const vector unsigned char trunc_src12 = vec_perm(src1, src2, trunc_perm);
550	const vector unsigned char trunc_src34 = vec_perm(src3, src4, trunc_perm);
551	const vector unsigned char trunc_src56 = vec_perm(src5, src6, trunc_perm);
552	const vector unsigned char trunc_src78 = vec_perm(src7, src8, trunc_perm);
553
554	#define EXTRACT(op) do { \
555	const vector unsigned char s##op##_1 = vec_##op(trunc_src12, trunc_src34); \
556	const vector unsigned char s##op##_2 = vec_##op(trunc_src56, trunc_src78); \
557	const vector unsigned char s##op##_6 = vec_##op(s##op##_1, s##op##_2); \
558	const vector unsigned char s##op##_8h = vec_mergeh(s##op##_6, s##op##_6); \
559	const vector unsigned char s##op##_8l = vec_mergel(s##op##_6, s##op##_6); \
560	const vector unsigned char s##op##_9 = vec_##op(s##op##_8h, s##op##_8l); \
561	const vector unsigned char s##op##_9h = vec_mergeh(s##op##_9, s##op##_9); \
562	const vector unsigned char s##op##_9l = vec_mergel(s##op##_9, s##op##_9); \
563	const vector unsigned char s##op##_10 = vec_##op(s##op##_9h, s##op##_9l); \
564	const vector unsigned char s##op##_10h = vec_mergeh(s##op##_10, s##op##_10); \
565	const vector unsigned char s##op##_10l = vec_mergel(s##op##_10, s##op##_10); \
566	const vector unsigned char s##op##_11 = vec_##op(s##op##_10h, s##op##_10l); \
567	const vector unsigned char s##op##_11h = vec_mergeh(s##op##_11, s##op##_11); \
568	const vector unsigned char s##op##_11l = vec_mergel(s##op##_11, s##op##_11); \
569	v_##op = vec_##op(s##op##_11h, s##op##_11l); } while (0)
570
571	vector unsigned char v_min;
572	vector unsigned char v_max;
573	EXTRACT(min);
574	EXTRACT(max);
575	#undef EXTRACT
576
577	if (vec_all_lt(vec_sub(v_max, v_min), v_dt))
578	return;
579
580	v_avg = vec_avg(v_min, v_max);
581	}
582
583	signed int __attribute__((aligned(16))) S[8];
584	{
585	const vector unsigned short mask1 = (vector unsigned short)
586	AVV(0x0001, 0x0002, 0x0004, 0x0008,
587	0x0010, 0x0020, 0x0040, 0x0080);
588	const vector unsigned short mask2 = (vector unsigned short)
589	AVV(0x0100, 0x0200, 0x0000, 0x0000,
590	0x0000, 0x0000, 0x0000, 0x0000);
591
592	const vector unsigned int vuint32_16 = vec_sl(vec_splat_u32(1), vec_splat_u32(4));
593	const vector unsigned int vuint32_1 = vec_splat_u32(1);
594
595	#define COMPARE(i) \
596	vector signed int sum##i; \
597	do { \
598	const vector unsigned char cmp##i = \
599	(vector unsigned char)vec_cmpgt(src##i, v_avg); \
600	const vector unsigned short cmpHi##i = \
601	(vector unsigned short)vec_mergeh(cmp##i, cmp##i); \
602	const vector unsigned short cmpLi##i = \
603	(vector unsigned short)vec_mergel(cmp##i, cmp##i); \
604	const vector signed short cmpHf##i = \
605	(vector signed short)vec_and(cmpHi##i, mask1); \
606	const vector signed short cmpLf##i = \
607	(vector signed short)vec_and(cmpLi##i, mask2); \
608	const vector signed int sump##i = vec_sum4s(cmpHf##i, zero); \
609	const vector signed int sumq##i = vec_sum4s(cmpLf##i, sump##i); \
610	sum##i = vec_sums(sumq##i, zero); } while (0)
611
612	COMPARE(0);
613	COMPARE(1);
614	COMPARE(2);
615	COMPARE(3);
616	COMPARE(4);
617	COMPARE(5);
618	COMPARE(6);
619	COMPARE(7);
620	COMPARE(8);
621	COMPARE(9);
622	#undef COMPARE
623
624	vector signed int sumA2;
625	vector signed int sumB2;
626	{
627	const vector signed int sump02 = vec_mergel(sum0, sum2);
628	const vector signed int sump13 = vec_mergel(sum1, sum3);
629	const vector signed int sumA = vec_mergel(sump02, sump13);
630
631	const vector signed int sump46 = vec_mergel(sum4, sum6);
632	const vector signed int sump57 = vec_mergel(sum5, sum7);
633	const vector signed int sumB = vec_mergel(sump46, sump57);
634
635	const vector signed int sump8A = vec_mergel(sum8, zero);
636	const vector signed int sump9B = vec_mergel(sum9, zero);
637	const vector signed int sumC = vec_mergel(sump8A, sump9B);
638
639	const vector signed int tA = vec_sl(vec_nor(zero, sumA), vuint32_16);
640	const vector signed int tB = vec_sl(vec_nor(zero, sumB), vuint32_16);
641	const vector signed int tC = vec_sl(vec_nor(zero, sumC), vuint32_16);
642	const vector signed int t2A = vec_or(sumA, tA);
643	const vector signed int t2B = vec_or(sumB, tB);
644	const vector signed int t2C = vec_or(sumC, tC);
645	const vector signed int t3A = vec_and(vec_sra(t2A, vuint32_1),
646	vec_sl(t2A, vuint32_1));
647	const vector signed int t3B = vec_and(vec_sra(t2B, vuint32_1),
648	vec_sl(t2B, vuint32_1));
649	const vector signed int t3C = vec_and(vec_sra(t2C, vuint32_1),
650	vec_sl(t2C, vuint32_1));
651	const vector signed int yA = vec_and(t2A, t3A);
652	const vector signed int yB = vec_and(t2B, t3B);
653	const vector signed int yC = vec_and(t2C, t3C);
654
655	const vector unsigned char strangeperm1 = vec_lvsl(4, (unsigned char*)0);
656	const vector unsigned char strangeperm2 = vec_lvsl(8, (unsigned char*)0);
657	const vector signed int sumAd4 = vec_perm(yA, yB, strangeperm1);
658	const vector signed int sumAd8 = vec_perm(yA, yB, strangeperm2);
659	const vector signed int sumBd4 = vec_perm(yB, yC, strangeperm1);
660	const vector signed int sumBd8 = vec_perm(yB, yC, strangeperm2);
661	const vector signed int sumAp = vec_and(yA,
662	vec_and(sumAd4,sumAd8));
663	const vector signed int sumBp = vec_and(yB,
664	vec_and(sumBd4,sumBd8));
665	sumA2 = vec_or(sumAp,
666	vec_sra(sumAp,
667	vuint32_16));
668	sumB2 = vec_or(sumBp,
669	vec_sra(sumBp,
670	vuint32_16));
671	}
672	vec_st(sumA2, 0, S);
673	vec_st(sumB2, 16, S);
674	}
675
676	/* I'm not sure the following is actually faster
677	than straight, unvectorized C code :-( */
678
679	int __attribute__((aligned(16))) tQP2[4];
680	tQP2[0]= c->QP/2 + 1;
681	vector signed int vQP2 = vec_ld(0, tQP2);
682	vQP2 = vec_splat(vQP2, 0);
683	const vector unsigned char vuint8_2 = vec_splat_u8(2);
684	const vector signed int vsint32_8 = vec_splat_s32(8);
685	const vector unsigned int vuint32_4 = vec_splat_u32(4);
686
687	const vector unsigned char permA1 = (vector unsigned char)
688	AVV(0x00, 0x01, 0x02, 0x10, 0x11, 0x12, 0x1F, 0x1F,
689	0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F);
690	const vector unsigned char permA2 = (vector unsigned char)
691	AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x10, 0x11,
692	0x12, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F);
693	const vector unsigned char permA1inc = (vector unsigned char)
694	AVV(0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
695	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
696	const vector unsigned char permA2inc = (vector unsigned char)
697	AVV(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
698	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
699	const vector unsigned char magic = (vector unsigned char)
700	AVV(0x01, 0x02, 0x01, 0x02, 0x04, 0x02, 0x01, 0x02,
701	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
702	const vector unsigned char extractPerm = (vector unsigned char)
703	AVV(0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01,
704	0x10, 0x10, 0x10, 0x01, 0x10, 0x10, 0x10, 0x01);
705	const vector unsigned char extractPermInc = (vector unsigned char)
706	AVV(0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
707	0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01);
708	const vector unsigned char identity = vec_lvsl(0,(unsigned char *)0);
709	const vector unsigned char tenRight = (vector unsigned char)
710	AVV(0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
711	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
712	const vector unsigned char eightLeft = (vector unsigned char)
713	AVV(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
714	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08);
715
716
717	#define F_INIT(i) \
718	vector unsigned char tenRightM##i = tenRight; \
719	vector unsigned char permA1M##i = permA1; \
720	vector unsigned char permA2M##i = permA2; \
721	vector unsigned char extractPermM##i = extractPerm
722
723	#define F2(i, j, k, l) \
724	if (S[i] & (1 << (l+1))) { \
725	const vector unsigned char a_##j##_A##l = \
726	vec_perm(src##i, src##j, permA1M##i); \
727	const vector unsigned char a_##j##_B##l = \
728	vec_perm(a_##j##_A##l, src##k, permA2M##i); \
729	const vector signed int a_##j##_sump##l = \
730	(vector signed int)vec_msum(a_##j##_B##l, magic, \
731	(vector unsigned int)zero); \
732	vector signed int F_##j##_##l = \
733	vec_sr(vec_sums(a_##j##_sump##l, vsint32_8), vuint32_4); \
734	F_##j##_##l = vec_splat(F_##j##_##l, 3); \
735	const vector signed int p_##j##_##l = \
736	(vector signed int)vec_perm(src##j, \
737	(vector unsigned char)zero, \
738	extractPermM##i); \
739	const vector signed int sum_##j##_##l = vec_add( p_##j##_##l, vQP2);\
740	const vector signed int diff_##j##_##l = vec_sub( p_##j##_##l, vQP2);\
741	vector signed int newpm_##j##_##l; \
742	if (vec_all_lt(sum_##j##_##l, F_##j##_##l)) \
743	newpm_##j##_##l = sum_##j##_##l; \
744	else if (vec_all_gt(diff_##j##_##l, F_##j##_##l)) \
745	newpm_##j##_##l = diff_##j##_##l; \
746	else newpm_##j##_##l = F_##j##_##l; \
747	const vector unsigned char newpm2_##j##_##l = \
748	vec_splat((vector unsigned char)newpm_##j##_##l, 15); \
749	const vector unsigned char mask##j##l = vec_add(identity, \
750	tenRightM##i); \
751	src##j = vec_perm(src##j, newpm2_##j##_##l, mask##j##l); \
752	} \
753	permA1M##i = vec_add(permA1M##i, permA1inc); \
754	permA2M##i = vec_add(permA2M##i, permA2inc); \
755	tenRightM##i = vec_sro(tenRightM##i, eightLeft); \
756	extractPermM##i = vec_add(extractPermM##i, extractPermInc)
757
758	#define ITER(i, j, k) \
759	F_INIT(i); \
760	F2(i, j, k, 0); \
761	F2(i, j, k, 1); \
762	F2(i, j, k, 2); \
763	F2(i, j, k, 3); \
764	F2(i, j, k, 4); \
765	F2(i, j, k, 5); \
766	F2(i, j, k, 6); \
767	F2(i, j, k, 7)
768
769	ITER(0, 1, 2);
770	ITER(1, 2, 3);
771	ITER(2, 3, 4);
772	ITER(3, 4, 5);
773	ITER(4, 5, 6);
774	ITER(5, 6, 7);
775	ITER(6, 7, 8);
776	ITER(7, 8, 9);
777
778	const vector signed char neg1 = vec_splat_s8(-1);
779
780	#define STORE_LINE(i) \
781	const vector unsigned char permST##i = \
782	vec_lvsr(i * stride, srcCopy); \
783	const vector unsigned char maskST##i = \
784	vec_perm((vector unsigned char)zero, \
785	(vector unsigned char)neg1, permST##i); \
786	src##i = vec_perm(src##i ,src##i, permST##i); \
787	sA##i= vec_sel(sA##i, src##i, maskST##i); \
788	sB##i= vec_sel(src##i, sB##i, maskST##i); \
789	vec_st(sA##i, i * stride, srcCopy); \
790	vec_st(sB##i, i * stride + 16, srcCopy)
791
792	STORE_LINE(1);
793	STORE_LINE(2);
794	STORE_LINE(3);
795	STORE_LINE(4);
796	STORE_LINE(5);
797	STORE_LINE(6);
798	STORE_LINE(7);
799	STORE_LINE(8);
800
801	#undef STORE_LINE
802	#undef ITER
803	#undef F2
804	}
805
806	#define doHorizLowPass_altivec(a...) doHorizLowPass_C(a)
807	#define doHorizDefFilter_altivec(a...) doHorizDefFilter_C(a)
808	#define do_a_deblock_altivec(a...) do_a_deblock_C(a)
809
810	static inline void RENAME(tempNoiseReducer)(uint8_t *src, int stride,
811	uint8_t tempBlured, uint32_t tempBluredPast, int *maxNoise)
812	{
813	const vector signed int zero = vec_splat_s32(0);
814	const vector signed short vsint16_1 = vec_splat_s16(1);
815	vector signed int v_dp = zero;
816	vector signed int v_sysdp = zero;
817	int d, sysd, i;
818
819	tempBluredPast[127]= maxNoise[0];
820	tempBluredPast[128]= maxNoise[1];
821	tempBluredPast[129]= maxNoise[2];
822
823	#define LOAD_LINE(src, i) \
824	register int j##src##i = i * stride; \
825	vector unsigned char perm##src##i = vec_lvsl(j##src##i, src); \
826	const vector unsigned char v_##src##A1##i = vec_ld(j##src##i, src); \
827	const vector unsigned char v_##src##A2##i = vec_ld(j##src##i + 16, src); \
828	const vector unsigned char v_##src##A##i = \
829	vec_perm(v_##src##A1##i, v_##src##A2##i, perm##src##i); \
830	vector signed short v_##src##Ass##i = \
831	(vector signed short)vec_mergeh((vector signed char)zero, \
832	(vector signed char)v_##src##A##i)
833
834	LOAD_LINE(src, 0);
835	LOAD_LINE(src, 1);
836	LOAD_LINE(src, 2);
837	LOAD_LINE(src, 3);
838	LOAD_LINE(src, 4);
839	LOAD_LINE(src, 5);
840	LOAD_LINE(src, 6);
841	LOAD_LINE(src, 7);
842
843	LOAD_LINE(tempBlured, 0);
844	LOAD_LINE(tempBlured, 1);
845	LOAD_LINE(tempBlured, 2);
846	LOAD_LINE(tempBlured, 3);
847	LOAD_LINE(tempBlured, 4);
848	LOAD_LINE(tempBlured, 5);
849	LOAD_LINE(tempBlured, 6);
850	LOAD_LINE(tempBlured, 7);
851	#undef LOAD_LINE
852
853	#define ACCUMULATE_DIFFS(i) \
854	vector signed short v_d##i = vec_sub(v_tempBluredAss##i, \
855	v_srcAss##i); \
856	v_dp = vec_msums(v_d##i, v_d##i, v_dp); \
857	v_sysdp = vec_msums(v_d##i, vsint16_1, v_sysdp)
858
859	ACCUMULATE_DIFFS(0);
860	ACCUMULATE_DIFFS(1);
861	ACCUMULATE_DIFFS(2);
862	ACCUMULATE_DIFFS(3);
863	ACCUMULATE_DIFFS(4);
864	ACCUMULATE_DIFFS(5);
865	ACCUMULATE_DIFFS(6);
866	ACCUMULATE_DIFFS(7);
867	#undef ACCUMULATE_DIFFS
868
869	v_dp = vec_sums(v_dp, zero);
870	v_sysdp = vec_sums(v_sysdp, zero);
871
872	v_dp = vec_splat(v_dp, 3);
873	v_sysdp = vec_splat(v_sysdp, 3);
874
875	vec_ste(v_dp, 0, &d);
876	vec_ste(v_sysdp, 0, &sysd);
877
878	i = d;
879	d = (4*d
880	+(*(tempBluredPast-256))
881	+((tempBluredPast-1))+ ((tempBluredPast+1))
882	+(*(tempBluredPast+256))
883	+4)>>3;
884
885	*tempBluredPast=i;
886
887	if (d > maxNoise[1]) {
888	if (d < maxNoise[2]) {
889	#define OP(i) v_tempBluredAss##i = vec_avg(v_tempBluredAss##i, v_srcAss##i);
890
891	OP(0);
892	OP(1);
893	OP(2);
894	OP(3);
895	OP(4);
896	OP(5);
897	OP(6);
898	OP(7);
899	#undef OP
900	} else {
901	#define OP(i) v_tempBluredAss##i = v_srcAss##i;
902
903	OP(0);
904	OP(1);
905	OP(2);
906	OP(3);
907	OP(4);
908	OP(5);
909	OP(6);
910	OP(7);
911	#undef OP
912	}
913	} else {
914	if (d < maxNoise[0]) {
915	const vector signed short vsint16_7 = vec_splat_s16(7);
916	const vector signed short vsint16_4 = vec_splat_s16(4);
917	const vector unsigned short vuint16_3 = vec_splat_u16(3);
918
919	#define OP(i) \
920	const vector signed short v_temp##i = \
921	vec_mladd(v_tempBluredAss##i, \
922	vsint16_7, v_srcAss##i); \
923	const vector signed short v_temp2##i = \
924	vec_add(v_temp##i, vsint16_4); \
925	v_tempBluredAss##i = vec_sr(v_temp2##i, vuint16_3)
926
927	OP(0);
928	OP(1);
929	OP(2);
930	OP(3);
931	OP(4);
932	OP(5);
933	OP(6);
934	OP(7);
935	#undef OP
936	} else {
937	const vector signed short vsint16_3 = vec_splat_s16(3);
938	const vector signed short vsint16_2 = vec_splat_s16(2);
939
940	#define OP(i) \
941	const vector signed short v_temp##i = \
942	vec_mladd(v_tempBluredAss##i, \
943	vsint16_3, v_srcAss##i); \
944	const vector signed short v_temp2##i = \
945	vec_add(v_temp##i, vsint16_2); \
946	v_tempBluredAss##i = vec_sr(v_temp2##i, (vector unsigned short)vsint16_2)
947
948	OP(0);
949	OP(1);
950	OP(2);
951	OP(3);
952	OP(4);
953	OP(5);
954	OP(6);
955	OP(7);
956	#undef OP
957	}
958	}
959
960	const vector signed char neg1 = vec_splat_s8(-1);
961	const vector unsigned char permHH = (const vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
962	0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F);
963
964	#define PACK_AND_STORE(src, i) \
965	const vector unsigned char perms##src##i = \
966	vec_lvsr(i * stride, src); \
967	const vector unsigned char vf##src##i = \
968	vec_packsu(v_tempBluredAss##i, (vector signed short)zero); \
969	const vector unsigned char vg##src##i = \
970	vec_perm(vf##src##i, v_##src##A##i, permHH); \
971	const vector unsigned char mask##src##i = \
972	vec_perm((vector unsigned char)zero, (vector unsigned char)neg1, perms##src##i); \
973	const vector unsigned char vg2##src##i = \
974	vec_perm(vg##src##i, vg##src##i, perms##src##i); \
975	const vector unsigned char svA##src##i = \
976	vec_sel(v_##src##A1##i, vg2##src##i, mask##src##i); \
977	const vector unsigned char svB##src##i = \
978	vec_sel(vg2##src##i, v_##src##A2##i, mask##src##i); \
979	vec_st(svA##src##i, i * stride, src); \
980	vec_st(svB##src##i, i * stride + 16, src)
981
982	PACK_AND_STORE(src, 0);
983	PACK_AND_STORE(src, 1);
984	PACK_AND_STORE(src, 2);
985	PACK_AND_STORE(src, 3);
986	PACK_AND_STORE(src, 4);
987	PACK_AND_STORE(src, 5);
988	PACK_AND_STORE(src, 6);
989	PACK_AND_STORE(src, 7);
990	PACK_AND_STORE(tempBlured, 0);
991	PACK_AND_STORE(tempBlured, 1);
992	PACK_AND_STORE(tempBlured, 2);
993	PACK_AND_STORE(tempBlured, 3);
994	PACK_AND_STORE(tempBlured, 4);
995	PACK_AND_STORE(tempBlured, 5);
996	PACK_AND_STORE(tempBlured, 6);
997	PACK_AND_STORE(tempBlured, 7);
998	#undef PACK_AND_STORE
999	}
1000
1001	static inline void transpose_16x8_char_toPackedAlign_altivec(unsigned char* dst, unsigned char* src, int stride) {
1002	const vector unsigned char zero = vec_splat_u8(0);
1003
1004	#define LOAD_DOUBLE_LINE(i, j) \
1005	vector unsigned char perm1##i = vec_lvsl(i * stride, src); \
1006	vector unsigned char perm2##i = vec_lvsl(j * stride, src); \
1007	vector unsigned char srcA##i = vec_ld(i * stride, src); \
1008	vector unsigned char srcB##i = vec_ld(i * stride + 16, src); \
1009	vector unsigned char srcC##i = vec_ld(j * stride, src); \
1010	vector unsigned char srcD##i = vec_ld(j * stride+ 16, src); \
1011	vector unsigned char src##i = vec_perm(srcA##i, srcB##i, perm1##i); \
1012	vector unsigned char src##j = vec_perm(srcC##i, srcD##i, perm2##i)
1013
1014	LOAD_DOUBLE_LINE(0, 1);
1015	LOAD_DOUBLE_LINE(2, 3);
1016	LOAD_DOUBLE_LINE(4, 5);
1017	LOAD_DOUBLE_LINE(6, 7);
1018	#undef LOAD_DOUBLE_LINE
1019
1020	vector unsigned char tempA = vec_mergeh(src0, zero);
1021	vector unsigned char tempB = vec_mergel(src0, zero);
1022	vector unsigned char tempC = vec_mergeh(src1, zero);
1023	vector unsigned char tempD = vec_mergel(src1, zero);
1024	vector unsigned char tempE = vec_mergeh(src2, zero);
1025	vector unsigned char tempF = vec_mergel(src2, zero);
1026	vector unsigned char tempG = vec_mergeh(src3, zero);
1027	vector unsigned char tempH = vec_mergel(src3, zero);
1028	vector unsigned char tempI = vec_mergeh(src4, zero);
1029	vector unsigned char tempJ = vec_mergel(src4, zero);
1030	vector unsigned char tempK = vec_mergeh(src5, zero);
1031	vector unsigned char tempL = vec_mergel(src5, zero);
1032	vector unsigned char tempM = vec_mergeh(src6, zero);
1033	vector unsigned char tempN = vec_mergel(src6, zero);
1034	vector unsigned char tempO = vec_mergeh(src7, zero);
1035	vector unsigned char tempP = vec_mergel(src7, zero);
1036
1037	vector unsigned char temp0 = vec_mergeh(tempA, tempI);
1038	vector unsigned char temp1 = vec_mergel(tempA, tempI);
1039	vector unsigned char temp2 = vec_mergeh(tempB, tempJ);
1040	vector unsigned char temp3 = vec_mergel(tempB, tempJ);
1041	vector unsigned char temp4 = vec_mergeh(tempC, tempK);
1042	vector unsigned char temp5 = vec_mergel(tempC, tempK);
1043	vector unsigned char temp6 = vec_mergeh(tempD, tempL);
1044	vector unsigned char temp7 = vec_mergel(tempD, tempL);
1045	vector unsigned char temp8 = vec_mergeh(tempE, tempM);
1046	vector unsigned char temp9 = vec_mergel(tempE, tempM);
1047	vector unsigned char temp10 = vec_mergeh(tempF, tempN);
1048	vector unsigned char temp11 = vec_mergel(tempF, tempN);
1049	vector unsigned char temp12 = vec_mergeh(tempG, tempO);
1050	vector unsigned char temp13 = vec_mergel(tempG, tempO);
1051	vector unsigned char temp14 = vec_mergeh(tempH, tempP);
1052	vector unsigned char temp15 = vec_mergel(tempH, tempP);
1053
1054	tempA = vec_mergeh(temp0, temp8);
1055	tempB = vec_mergel(temp0, temp8);
1056	tempC = vec_mergeh(temp1, temp9);
1057	tempD = vec_mergel(temp1, temp9);
1058	tempE = vec_mergeh(temp2, temp10);
1059	tempF = vec_mergel(temp2, temp10);
1060	tempG = vec_mergeh(temp3, temp11);
1061	tempH = vec_mergel(temp3, temp11);
1062	tempI = vec_mergeh(temp4, temp12);
1063	tempJ = vec_mergel(temp4, temp12);
1064	tempK = vec_mergeh(temp5, temp13);
1065	tempL = vec_mergel(temp5, temp13);
1066	tempM = vec_mergeh(temp6, temp14);
1067	tempN = vec_mergel(temp6, temp14);
1068	tempO = vec_mergeh(temp7, temp15);
1069	tempP = vec_mergel(temp7, temp15);
1070
1071	temp0 = vec_mergeh(tempA, tempI);
1072	temp1 = vec_mergel(tempA, tempI);
1073	temp2 = vec_mergeh(tempB, tempJ);
1074	temp3 = vec_mergel(tempB, tempJ);
1075	temp4 = vec_mergeh(tempC, tempK);
1076	temp5 = vec_mergel(tempC, tempK);
1077	temp6 = vec_mergeh(tempD, tempL);
1078	temp7 = vec_mergel(tempD, tempL);
1079	temp8 = vec_mergeh(tempE, tempM);
1080	temp9 = vec_mergel(tempE, tempM);
1081	temp10 = vec_mergeh(tempF, tempN);
1082	temp11 = vec_mergel(tempF, tempN);
1083	temp12 = vec_mergeh(tempG, tempO);
1084	temp13 = vec_mergel(tempG, tempO);
1085	temp14 = vec_mergeh(tempH, tempP);
1086	temp15 = vec_mergel(tempH, tempP);
1087
1088	vec_st(temp0, 0, dst);
1089	vec_st(temp1, 16, dst);
1090	vec_st(temp2, 32, dst);
1091	vec_st(temp3, 48, dst);
1092	vec_st(temp4, 64, dst);
1093	vec_st(temp5, 80, dst);
1094	vec_st(temp6, 96, dst);
1095	vec_st(temp7, 112, dst);
1096	vec_st(temp8, 128, dst);
1097	vec_st(temp9, 144, dst);
1098	vec_st(temp10, 160, dst);
1099	vec_st(temp11, 176, dst);
1100	vec_st(temp12, 192, dst);
1101	vec_st(temp13, 208, dst);
1102	vec_st(temp14, 224, dst);
1103	vec_st(temp15, 240, dst);
1104	}
1105
1106	static inline void transpose_8x16_char_fromPackedAlign_altivec(unsigned char* dst, unsigned char* src, int stride) {
1107	const vector unsigned char zero = vec_splat_u8(0);
1108	const vector unsigned char magic_perm = (const vector unsigned char)
1109	AVV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
1110	0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F);
1111
1112	#define LOAD_DOUBLE_LINE(i, j) \
1113	vector unsigned char src##i = vec_ld(i * 16, src); \
1114	vector unsigned char src##j = vec_ld(j * 16, src)
1115
1116	LOAD_DOUBLE_LINE(0, 1);
1117	LOAD_DOUBLE_LINE(2, 3);
1118	LOAD_DOUBLE_LINE(4, 5);
1119	LOAD_DOUBLE_LINE(6, 7);
1120	LOAD_DOUBLE_LINE(8, 9);
1121	LOAD_DOUBLE_LINE(10, 11);
1122	LOAD_DOUBLE_LINE(12, 13);
1123	LOAD_DOUBLE_LINE(14, 15);
1124	#undef LOAD_DOUBLE_LINE
1125
1126	vector unsigned char tempA = vec_mergeh(src0, src8);
1127	vector unsigned char tempB;
1128	vector unsigned char tempC = vec_mergeh(src1, src9);
1129	vector unsigned char tempD;
1130	vector unsigned char tempE = vec_mergeh(src2, src10);
1131	vector unsigned char tempG = vec_mergeh(src3, src11);
1132	vector unsigned char tempI = vec_mergeh(src4, src12);
1133	vector unsigned char tempJ;
1134	vector unsigned char tempK = vec_mergeh(src5, src13);
1135	vector unsigned char tempL;
1136	vector unsigned char tempM = vec_mergeh(src6, src14);
1137	vector unsigned char tempO = vec_mergeh(src7, src15);
1138
1139	vector unsigned char temp0 = vec_mergeh(tempA, tempI);
1140	vector unsigned char temp1 = vec_mergel(tempA, tempI);
1141	vector unsigned char temp2;
1142	vector unsigned char temp3;
1143	vector unsigned char temp4 = vec_mergeh(tempC, tempK);
1144	vector unsigned char temp5 = vec_mergel(tempC, tempK);
1145	vector unsigned char temp6;
1146	vector unsigned char temp7;
1147	vector unsigned char temp8 = vec_mergeh(tempE, tempM);
1148	vector unsigned char temp9 = vec_mergel(tempE, tempM);
1149	vector unsigned char temp12 = vec_mergeh(tempG, tempO);
1150	vector unsigned char temp13 = vec_mergel(tempG, tempO);
1151
1152	tempA = vec_mergeh(temp0, temp8);
1153	tempB = vec_mergel(temp0, temp8);
1154	tempC = vec_mergeh(temp1, temp9);
1155	tempD = vec_mergel(temp1, temp9);
1156	tempI = vec_mergeh(temp4, temp12);
1157	tempJ = vec_mergel(temp4, temp12);
1158	tempK = vec_mergeh(temp5, temp13);
1159	tempL = vec_mergel(temp5, temp13);
1160
1161	temp0 = vec_mergeh(tempA, tempI);
1162	temp1 = vec_mergel(tempA, tempI);
1163	temp2 = vec_mergeh(tempB, tempJ);
1164	temp3 = vec_mergel(tempB, tempJ);
1165	temp4 = vec_mergeh(tempC, tempK);
1166	temp5 = vec_mergel(tempC, tempK);
1167	temp6 = vec_mergeh(tempD, tempL);
1168	temp7 = vec_mergel(tempD, tempL);
1169
1170
1171	const vector signed char neg1 = vec_splat_s8(-1);
1172	#define STORE_DOUBLE_LINE(i, j) \
1173	vector unsigned char dstA##i = vec_ld(i * stride, dst); \
1174	vector unsigned char dstB##i = vec_ld(i * stride + 16, dst); \
1175	vector unsigned char dstA##j = vec_ld(j * stride, dst); \
1176	vector unsigned char dstB##j = vec_ld(j * stride+ 16, dst); \
1177	vector unsigned char align##i = vec_lvsr(i * stride, dst); \
1178	vector unsigned char align##j = vec_lvsr(j * stride, dst); \
1179	vector unsigned char mask##i = vec_perm(zero, (vector unsigned char)neg1, align##i); \
1180	vector unsigned char mask##j = vec_perm(zero, (vector unsigned char)neg1, align##j); \
1181	vector unsigned char dstR##i = vec_perm(temp##i, temp##i, align##i); \
1182	vector unsigned char dstR##j = vec_perm(temp##j, temp##j, align##j); \
1183	vector unsigned char dstAF##i = vec_sel(dstA##i, dstR##i, mask##i); \
1184	vector unsigned char dstBF##i = vec_sel(dstR##i, dstB##i, mask##i); \
1185	vector unsigned char dstAF##j = vec_sel(dstA##j, dstR##j, mask##j); \
1186	vector unsigned char dstBF##j = vec_sel(dstR##j, dstB##j, mask##j); \
1187	vec_st(dstAF##i, i * stride, dst); \
1188	vec_st(dstBF##i, i * stride + 16, dst); \
1189	vec_st(dstAF##j, j * stride, dst); \
1190	vec_st(dstBF##j, j * stride + 16, dst)
1191
1192	STORE_DOUBLE_LINE(0,1);
1193	STORE_DOUBLE_LINE(2,3);
1194	STORE_DOUBLE_LINE(4,5);
1195	STORE_DOUBLE_LINE(6,7);
1196	}

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source: vbox/trunk/src/libs/ffmpeg-20060710/libpostproc/postprocess_altivec_template.c@ 10179

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