ab4c5c10a7c5ca987297d370cadf23e990be43bf
[libav.git] / libavcodec / ppc / h264_altivec.c
1 /*
2 * Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavcodec/dsputil.h"
22
23 #include "gcc_fixes.h"
24
25 #include "dsputil_ppc.h"
26 #include "dsputil_altivec.h"
27 #include "util_altivec.h"
28 #include "types_altivec.h"
29
30 #define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
31 #define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
32
33 #define OP_U8_ALTIVEC PUT_OP_U8_ALTIVEC
34 #define PREFIX_h264_chroma_mc8_altivec put_h264_chroma_mc8_altivec
35 #define PREFIX_h264_chroma_mc8_num altivec_put_h264_chroma_mc8_num
36 #define PREFIX_h264_qpel16_h_lowpass_altivec put_h264_qpel16_h_lowpass_altivec
37 #define PREFIX_h264_qpel16_h_lowpass_num altivec_put_h264_qpel16_h_lowpass_num
38 #define PREFIX_h264_qpel16_v_lowpass_altivec put_h264_qpel16_v_lowpass_altivec
39 #define PREFIX_h264_qpel16_v_lowpass_num altivec_put_h264_qpel16_v_lowpass_num
40 #define PREFIX_h264_qpel16_hv_lowpass_altivec put_h264_qpel16_hv_lowpass_altivec
41 #define PREFIX_h264_qpel16_hv_lowpass_num altivec_put_h264_qpel16_hv_lowpass_num
42 #include "h264_template_altivec.c"
43 #undef OP_U8_ALTIVEC
44 #undef PREFIX_h264_chroma_mc8_altivec
45 #undef PREFIX_h264_chroma_mc8_num
46 #undef PREFIX_h264_qpel16_h_lowpass_altivec
47 #undef PREFIX_h264_qpel16_h_lowpass_num
48 #undef PREFIX_h264_qpel16_v_lowpass_altivec
49 #undef PREFIX_h264_qpel16_v_lowpass_num
50 #undef PREFIX_h264_qpel16_hv_lowpass_altivec
51 #undef PREFIX_h264_qpel16_hv_lowpass_num
52
53 #define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
54 #define PREFIX_h264_chroma_mc8_altivec avg_h264_chroma_mc8_altivec
55 #define PREFIX_h264_chroma_mc8_num altivec_avg_h264_chroma_mc8_num
56 #define PREFIX_h264_qpel16_h_lowpass_altivec avg_h264_qpel16_h_lowpass_altivec
57 #define PREFIX_h264_qpel16_h_lowpass_num altivec_avg_h264_qpel16_h_lowpass_num
58 #define PREFIX_h264_qpel16_v_lowpass_altivec avg_h264_qpel16_v_lowpass_altivec
59 #define PREFIX_h264_qpel16_v_lowpass_num altivec_avg_h264_qpel16_v_lowpass_num
60 #define PREFIX_h264_qpel16_hv_lowpass_altivec avg_h264_qpel16_hv_lowpass_altivec
61 #define PREFIX_h264_qpel16_hv_lowpass_num altivec_avg_h264_qpel16_hv_lowpass_num
62 #include "h264_template_altivec.c"
63 #undef OP_U8_ALTIVEC
64 #undef PREFIX_h264_chroma_mc8_altivec
65 #undef PREFIX_h264_chroma_mc8_num
66 #undef PREFIX_h264_qpel16_h_lowpass_altivec
67 #undef PREFIX_h264_qpel16_h_lowpass_num
68 #undef PREFIX_h264_qpel16_v_lowpass_altivec
69 #undef PREFIX_h264_qpel16_v_lowpass_num
70 #undef PREFIX_h264_qpel16_hv_lowpass_altivec
71 #undef PREFIX_h264_qpel16_hv_lowpass_num
72
73 #define H264_MC(OPNAME, SIZE, CODETYPE) \
74 static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## CODETYPE (uint8_t *dst, uint8_t *src, int stride){\
75 OPNAME ## pixels ## SIZE ## _ ## CODETYPE(dst, src, stride, SIZE);\
76 }\
77 \
78 static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){ \
79 DECLARE_ALIGNED_16(uint8_t, half[SIZE*SIZE]);\
80 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
81 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
82 }\
83 \
84 static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
85 OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(dst, src, stride, stride);\
86 }\
87 \
88 static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
89 DECLARE_ALIGNED_16(uint8_t, half[SIZE*SIZE]);\
90 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
91 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+1, half, stride, stride, SIZE);\
92 }\
93 \
94 static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
95 DECLARE_ALIGNED_16(uint8_t, half[SIZE*SIZE]);\
96 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
97 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src, half, stride, stride, SIZE);\
98 }\
99 \
100 static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
101 OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(dst, src, stride, stride);\
102 }\
103 \
104 static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
105 DECLARE_ALIGNED_16(uint8_t, half[SIZE*SIZE]);\
106 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(half, src, SIZE, stride);\
107 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, src+stride, half, stride, stride, SIZE);\
108 }\
109 \
110 static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
111 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
112 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
113 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
114 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
115 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
116 }\
117 \
118 static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
119 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
120 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
121 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
122 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
123 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
124 }\
125 \
126 static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
127 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
128 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
129 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
130 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
131 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
132 }\
133 \
134 static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
135 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
136 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
137 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
138 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
139 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfV, stride, SIZE, SIZE);\
140 }\
141 \
142 static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
143 DECLARE_ALIGNED_16(int16_t, tmp[SIZE*(SIZE+8)]);\
144 OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(dst, tmp, src, stride, SIZE, stride);\
145 }\
146 \
147 static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
148 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
149 DECLARE_ALIGNED_16(uint8_t, halfHV[SIZE*SIZE]);\
150 DECLARE_ALIGNED_16(int16_t, tmp[SIZE*(SIZE+8)]);\
151 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src, SIZE, stride);\
152 put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
153 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
154 }\
155 \
156 static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
157 DECLARE_ALIGNED_16(uint8_t, halfH[SIZE*SIZE]);\
158 DECLARE_ALIGNED_16(uint8_t, halfHV[SIZE*SIZE]);\
159 DECLARE_ALIGNED_16(int16_t, tmp[SIZE*(SIZE+8)]);\
160 put_h264_qpel ## SIZE ## _h_lowpass_ ## CODETYPE(halfH, src + stride, SIZE, stride);\
161 put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
162 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfH, halfHV, stride, SIZE, SIZE);\
163 }\
164 \
165 static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
166 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
167 DECLARE_ALIGNED_16(uint8_t, halfHV[SIZE*SIZE]);\
168 DECLARE_ALIGNED_16(int16_t, tmp[SIZE*(SIZE+8)]);\
169 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src, SIZE, stride);\
170 put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
171 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
172 }\
173 \
174 static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## CODETYPE(uint8_t *dst, uint8_t *src, int stride){\
175 DECLARE_ALIGNED_16(uint8_t, halfV[SIZE*SIZE]);\
176 DECLARE_ALIGNED_16(uint8_t, halfHV[SIZE*SIZE]);\
177 DECLARE_ALIGNED_16(int16_t, tmp[SIZE*(SIZE+8)]);\
178 put_h264_qpel ## SIZE ## _v_lowpass_ ## CODETYPE(halfV, src+1, SIZE, stride);\
179 put_h264_qpel ## SIZE ## _hv_lowpass_ ## CODETYPE(halfHV, tmp, src, SIZE, SIZE, stride);\
180 OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
181 }\
182
183 /* this code assume that stride % 16 == 0 */
184 void put_no_rnd_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) {
185 DECLARE_ALIGNED_16(signed int, ABCD[4]) =
186 {((8 - x) * (8 - y)),
187 ((x) * (8 - y)),
188 ((8 - x) * (y)),
189 ((x) * (y))};
190 register int i;
191 vec_u8_t fperm;
192 const vec_s32_t vABCD = vec_ld(0, ABCD);
193 const vec_s16_t vA = vec_splat((vec_s16_t)vABCD, 1);
194 const vec_s16_t vB = vec_splat((vec_s16_t)vABCD, 3);
195 const vec_s16_t vC = vec_splat((vec_s16_t)vABCD, 5);
196 const vec_s16_t vD = vec_splat((vec_s16_t)vABCD, 7);
197 LOAD_ZERO;
198 const vec_s16_t v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4));
199 const vec_u16_t v6us = vec_splat_u16(6);
200 register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1;
201 register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0;
202
203 vec_u8_t vsrcAuc, vsrcBuc, vsrcperm0, vsrcperm1;
204 vec_u8_t vsrc0uc, vsrc1uc;
205 vec_s16_t vsrc0ssH, vsrc1ssH;
206 vec_u8_t vsrcCuc, vsrc2uc, vsrc3uc;
207 vec_s16_t vsrc2ssH, vsrc3ssH, psum;
208 vec_u8_t vdst, ppsum, fsum;
209
210 if (((unsigned long)dst) % 16 == 0) {
211 fperm = (vec_u8_t){0x10, 0x11, 0x12, 0x13,
212 0x14, 0x15, 0x16, 0x17,
213 0x08, 0x09, 0x0A, 0x0B,
214 0x0C, 0x0D, 0x0E, 0x0F};
215 } else {
216 fperm = (vec_u8_t){0x00, 0x01, 0x02, 0x03,
217 0x04, 0x05, 0x06, 0x07,
218 0x18, 0x19, 0x1A, 0x1B,
219 0x1C, 0x1D, 0x1E, 0x1F};
220 }
221
222 vsrcAuc = vec_ld(0, src);
223
224 if (loadSecond)
225 vsrcBuc = vec_ld(16, src);
226 vsrcperm0 = vec_lvsl(0, src);
227 vsrcperm1 = vec_lvsl(1, src);
228
229 vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0);
230 if (reallyBadAlign)
231 vsrc1uc = vsrcBuc;
232 else
233 vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1);
234
235 vsrc0ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc0uc);
236 vsrc1ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc1uc);
237
238 if (!loadSecond) {// -> !reallyBadAlign
239 for (i = 0 ; i < h ; i++) {
240
241
242 vsrcCuc = vec_ld(stride + 0, src);
243
244 vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0);
245 vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1);
246
247 vsrc2ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc2uc);
248 vsrc3ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc3uc);
249
250 psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
251 psum = vec_mladd(vB, vsrc1ssH, psum);
252 psum = vec_mladd(vC, vsrc2ssH, psum);
253 psum = vec_mladd(vD, vsrc3ssH, psum);
254 psum = vec_add(v28ss, psum);
255 psum = vec_sra(psum, v6us);
256
257 vdst = vec_ld(0, dst);
258 ppsum = (vec_u8_t)vec_packsu(psum, psum);
259 fsum = vec_perm(vdst, ppsum, fperm);
260
261 vec_st(fsum, 0, dst);
262
263 vsrc0ssH = vsrc2ssH;
264 vsrc1ssH = vsrc3ssH;
265
266 dst += stride;
267 src += stride;
268 }
269 } else {
270 vec_u8_t vsrcDuc;
271 for (i = 0 ; i < h ; i++) {
272 vsrcCuc = vec_ld(stride + 0, src);
273 vsrcDuc = vec_ld(stride + 16, src);
274
275 vsrc2uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0);
276 if (reallyBadAlign)
277 vsrc3uc = vsrcDuc;
278 else
279 vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1);
280
281 vsrc2ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc2uc);
282 vsrc3ssH = (vec_s16_t)vec_mergeh(zero_u8v, (vec_u8_t)vsrc3uc);
283
284 psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
285 psum = vec_mladd(vB, vsrc1ssH, psum);
286 psum = vec_mladd(vC, vsrc2ssH, psum);
287 psum = vec_mladd(vD, vsrc3ssH, psum);
288 psum = vec_add(v28ss, psum);
289 psum = vec_sr(psum, v6us);
290
291 vdst = vec_ld(0, dst);
292 ppsum = (vec_u8_t)vec_pack(psum, psum);
293 fsum = vec_perm(vdst, ppsum, fperm);
294
295 vec_st(fsum, 0, dst);
296
297 vsrc0ssH = vsrc2ssH;
298 vsrc1ssH = vsrc3ssH;
299
300 dst += stride;
301 src += stride;
302 }
303 }
304 }
305
306 static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
307 const uint8_t * src2, int dst_stride,
308 int src_stride1, int h)
309 {
310 int i;
311 vec_u8_t a, b, d, tmp1, tmp2, mask, mask_, edges, align;
312
313 mask_ = vec_lvsl(0, src2);
314
315 for (i = 0; i < h; i++) {
316
317 tmp1 = vec_ld(i * src_stride1, src1);
318 mask = vec_lvsl(i * src_stride1, src1);
319 tmp2 = vec_ld(i * src_stride1 + 15, src1);
320
321 a = vec_perm(tmp1, tmp2, mask);
322
323 tmp1 = vec_ld(i * 16, src2);
324 tmp2 = vec_ld(i * 16 + 15, src2);
325
326 b = vec_perm(tmp1, tmp2, mask_);
327
328 tmp1 = vec_ld(0, dst);
329 mask = vec_lvsl(0, dst);
330 tmp2 = vec_ld(15, dst);
331
332 d = vec_avg(a, b);
333
334 edges = vec_perm(tmp2, tmp1, mask);
335
336 align = vec_lvsr(0, dst);
337
338 tmp2 = vec_perm(d, edges, align);
339 tmp1 = vec_perm(edges, d, align);
340
341 vec_st(tmp2, 15, dst);
342 vec_st(tmp1, 0 , dst);
343
344 dst += dst_stride;
345 }
346 }
347
348 static inline void avg_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
349 const uint8_t * src2, int dst_stride,
350 int src_stride1, int h)
351 {
352 int i;
353 vec_u8_t a, b, d, tmp1, tmp2, mask, mask_, edges, align;
354
355 mask_ = vec_lvsl(0, src2);
356
357 for (i = 0; i < h; i++) {
358
359 tmp1 = vec_ld(i * src_stride1, src1);
360 mask = vec_lvsl(i * src_stride1, src1);
361 tmp2 = vec_ld(i * src_stride1 + 15, src1);
362
363 a = vec_perm(tmp1, tmp2, mask);
364
365 tmp1 = vec_ld(i * 16, src2);
366 tmp2 = vec_ld(i * 16 + 15, src2);
367
368 b = vec_perm(tmp1, tmp2, mask_);
369
370 tmp1 = vec_ld(0, dst);
371 mask = vec_lvsl(0, dst);
372 tmp2 = vec_ld(15, dst);
373
374 d = vec_avg(vec_perm(tmp1, tmp2, mask), vec_avg(a, b));
375
376 edges = vec_perm(tmp2, tmp1, mask);
377
378 align = vec_lvsr(0, dst);
379
380 tmp2 = vec_perm(d, edges, align);
381 tmp1 = vec_perm(edges, d, align);
382
383 vec_st(tmp2, 15, dst);
384 vec_st(tmp1, 0 , dst);
385
386 dst += dst_stride;
387 }
388 }
389
390 /* Implemented but could be faster
391 #define put_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) put_pixels16_l2(d,s1,s2,ds,s1s,16,h)
392 #define avg_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) avg_pixels16_l2(d,s1,s2,ds,s1s,16,h)
393 */
394
395 H264_MC(put_, 16, altivec)
396 H264_MC(avg_, 16, altivec)
397
398
399 /****************************************************************************
400 * IDCT transform:
401 ****************************************************************************/
402
403 #define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3) \
404 /* 1st stage */ \
405 vz0 = vec_add(vb0,vb2); /* temp[0] = Y[0] + Y[2] */ \
406 vz1 = vec_sub(vb0,vb2); /* temp[1] = Y[0] - Y[2] */ \
407 vz2 = vec_sra(vb1,vec_splat_u16(1)); \
408 vz2 = vec_sub(vz2,vb3); /* temp[2] = Y[1].1/2 - Y[3] */ \
409 vz3 = vec_sra(vb3,vec_splat_u16(1)); \
410 vz3 = vec_add(vb1,vz3); /* temp[3] = Y[1] + Y[3].1/2 */ \
411 /* 2nd stage: output */ \
412 va0 = vec_add(vz0,vz3); /* x[0] = temp[0] + temp[3] */ \
413 va1 = vec_add(vz1,vz2); /* x[1] = temp[1] + temp[2] */ \
414 va2 = vec_sub(vz1,vz2); /* x[2] = temp[1] - temp[2] */ \
415 va3 = vec_sub(vz0,vz3) /* x[3] = temp[0] - temp[3] */
416
417 #define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \
418 b0 = vec_mergeh( a0, a0 ); \
419 b1 = vec_mergeh( a1, a0 ); \
420 b2 = vec_mergeh( a2, a0 ); \
421 b3 = vec_mergeh( a3, a0 ); \
422 a0 = vec_mergeh( b0, b2 ); \
423 a1 = vec_mergel( b0, b2 ); \
424 a2 = vec_mergeh( b1, b3 ); \
425 a3 = vec_mergel( b1, b3 ); \
426 b0 = vec_mergeh( a0, a2 ); \
427 b1 = vec_mergel( a0, a2 ); \
428 b2 = vec_mergeh( a1, a3 ); \
429 b3 = vec_mergel( a1, a3 )
430
431 #define VEC_LOAD_U8_ADD_S16_STORE_U8(va) \
432 vdst_orig = vec_ld(0, dst); \
433 vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask); \
434 vdst_ss = (vec_s16_t) vec_mergeh(zero_u8v, vdst); \
435 va = vec_add(va, vdst_ss); \
436 va_u8 = vec_packsu(va, zero_s16v); \
437 va_u32 = vec_splat((vec_u32_t)va_u8, 0); \
438 vec_ste(va_u32, element, (uint32_t*)dst);
439
440 static void ff_h264_idct_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
441 {
442 vec_s16_t va0, va1, va2, va3;
443 vec_s16_t vz0, vz1, vz2, vz3;
444 vec_s16_t vtmp0, vtmp1, vtmp2, vtmp3;
445 vec_u8_t va_u8;
446 vec_u32_t va_u32;
447 vec_s16_t vdst_ss;
448 const vec_u16_t v6us = vec_splat_u16(6);
449 vec_u8_t vdst, vdst_orig;
450 vec_u8_t vdst_mask = vec_lvsl(0, dst);
451 int element = ((unsigned long)dst & 0xf) >> 2;
452 LOAD_ZERO;
453
454 block[0] += 32; /* add 32 as a DC-level for rounding */
455
456 vtmp0 = vec_ld(0,block);
457 vtmp1 = vec_sld(vtmp0, vtmp0, 8);
458 vtmp2 = vec_ld(16,block);
459 vtmp3 = vec_sld(vtmp2, vtmp2, 8);
460
461 VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
462 VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3);
463 VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
464
465 va0 = vec_sra(va0,v6us);
466 va1 = vec_sra(va1,v6us);
467 va2 = vec_sra(va2,v6us);
468 va3 = vec_sra(va3,v6us);
469
470 VEC_LOAD_U8_ADD_S16_STORE_U8(va0);
471 dst += stride;
472 VEC_LOAD_U8_ADD_S16_STORE_U8(va1);
473 dst += stride;
474 VEC_LOAD_U8_ADD_S16_STORE_U8(va2);
475 dst += stride;
476 VEC_LOAD_U8_ADD_S16_STORE_U8(va3);
477 }
478
479 #define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7) {\
480 /* a0 = SRC(0) + SRC(4); */ \
481 vec_s16_t a0v = vec_add(s0, s4); \
482 /* a2 = SRC(0) - SRC(4); */ \
483 vec_s16_t a2v = vec_sub(s0, s4); \
484 /* a4 = (SRC(2)>>1) - SRC(6); */ \
485 vec_s16_t a4v = vec_sub(vec_sra(s2, onev), s6); \
486 /* a6 = (SRC(6)>>1) + SRC(2); */ \
487 vec_s16_t a6v = vec_add(vec_sra(s6, onev), s2); \
488 /* b0 = a0 + a6; */ \
489 vec_s16_t b0v = vec_add(a0v, a6v); \
490 /* b2 = a2 + a4; */ \
491 vec_s16_t b2v = vec_add(a2v, a4v); \
492 /* b4 = a2 - a4; */ \
493 vec_s16_t b4v = vec_sub(a2v, a4v); \
494 /* b6 = a0 - a6; */ \
495 vec_s16_t b6v = vec_sub(a0v, a6v); \
496 /* a1 = SRC(5) - SRC(3) - SRC(7) - (SRC(7)>>1); */ \
497 /* a1 = (SRC(5)-SRC(3)) - (SRC(7) + (SRC(7)>>1)); */ \
498 vec_s16_t a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \
499 /* a3 = SRC(7) + SRC(1) - SRC(3) - (SRC(3)>>1); */ \
500 /* a3 = (SRC(7)+SRC(1)) - (SRC(3) + (SRC(3)>>1)); */ \
501 vec_s16_t a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\
502 /* a5 = SRC(7) - SRC(1) + SRC(5) + (SRC(5)>>1); */ \
503 /* a5 = (SRC(7)-SRC(1)) + SRC(5) + (SRC(5)>>1); */ \
504 vec_s16_t a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\
505 /* a7 = SRC(5)+SRC(3) + SRC(1) + (SRC(1)>>1); */ \
506 vec_s16_t a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\
507 /* b1 = (a7>>2) + a1; */ \
508 vec_s16_t b1v = vec_add( vec_sra(a7v, twov), a1v); \
509 /* b3 = a3 + (a5>>2); */ \
510 vec_s16_t b3v = vec_add(a3v, vec_sra(a5v, twov)); \
511 /* b5 = (a3>>2) - a5; */ \
512 vec_s16_t b5v = vec_sub( vec_sra(a3v, twov), a5v); \
513 /* b7 = a7 - (a1>>2); */ \
514 vec_s16_t b7v = vec_sub( a7v, vec_sra(a1v, twov)); \
515 /* DST(0, b0 + b7); */ \
516 d0 = vec_add(b0v, b7v); \
517 /* DST(1, b2 + b5); */ \
518 d1 = vec_add(b2v, b5v); \
519 /* DST(2, b4 + b3); */ \
520 d2 = vec_add(b4v, b3v); \
521 /* DST(3, b6 + b1); */ \
522 d3 = vec_add(b6v, b1v); \
523 /* DST(4, b6 - b1); */ \
524 d4 = vec_sub(b6v, b1v); \
525 /* DST(5, b4 - b3); */ \
526 d5 = vec_sub(b4v, b3v); \
527 /* DST(6, b2 - b5); */ \
528 d6 = vec_sub(b2v, b5v); \
529 /* DST(7, b0 - b7); */ \
530 d7 = vec_sub(b0v, b7v); \
531 }
532
533 #define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \
534 /* unaligned load */ \
535 vec_u8_t hv = vec_ld( 0, dest ); \
536 vec_u8_t lv = vec_ld( 7, dest ); \
537 vec_u8_t dstv = vec_perm( hv, lv, (vec_u8_t)perm_ldv ); \
538 vec_s16_t idct_sh6 = vec_sra(idctv, sixv); \
539 vec_u16_t dst16 = (vec_u16_t)vec_mergeh(zero_u8v, dstv); \
540 vec_s16_t idstsum = vec_adds(idct_sh6, (vec_s16_t)dst16); \
541 vec_u8_t idstsum8 = vec_packsu(zero_s16v, idstsum); \
542 vec_u8_t edgehv; \
543 /* unaligned store */ \
544 vec_u8_t bodyv = vec_perm( idstsum8, idstsum8, perm_stv );\
545 vec_u8_t edgelv = vec_perm( sel, zero_u8v, perm_stv ); \
546 lv = vec_sel( lv, bodyv, edgelv ); \
547 vec_st( lv, 7, dest ); \
548 hv = vec_ld( 0, dest ); \
549 edgehv = vec_perm( zero_u8v, sel, perm_stv ); \
550 hv = vec_sel( hv, bodyv, edgehv ); \
551 vec_st( hv, 0, dest ); \
552 }
553
554 void ff_h264_idct8_add_altivec( uint8_t *dst, DCTELEM *dct, int stride ) {
555 vec_s16_t s0, s1, s2, s3, s4, s5, s6, s7;
556 vec_s16_t d0, d1, d2, d3, d4, d5, d6, d7;
557 vec_s16_t idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7;
558
559 vec_u8_t perm_ldv = vec_lvsl(0, dst);
560 vec_u8_t perm_stv = vec_lvsr(8, dst);
561
562 const vec_u16_t onev = vec_splat_u16(1);
563 const vec_u16_t twov = vec_splat_u16(2);
564 const vec_u16_t sixv = vec_splat_u16(6);
565
566 const vec_u8_t sel = (vec_u8_t) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1};
567 LOAD_ZERO;
568
569 dct[0] += 32; // rounding for the >>6 at the end
570
571 s0 = vec_ld(0x00, (int16_t*)dct);
572 s1 = vec_ld(0x10, (int16_t*)dct);
573 s2 = vec_ld(0x20, (int16_t*)dct);
574 s3 = vec_ld(0x30, (int16_t*)dct);
575 s4 = vec_ld(0x40, (int16_t*)dct);
576 s5 = vec_ld(0x50, (int16_t*)dct);
577 s6 = vec_ld(0x60, (int16_t*)dct);
578 s7 = vec_ld(0x70, (int16_t*)dct);
579
580 IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,
581 d0, d1, d2, d3, d4, d5, d6, d7);
582
583 TRANSPOSE8( d0, d1, d2, d3, d4, d5, d6, d7 );
584
585 IDCT8_1D_ALTIVEC(d0, d1, d2, d3, d4, d5, d6, d7,
586 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7);
587
588 ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel);
589 ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel);
590 ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel);
591 ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel);
592 ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel);
593 ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel);
594 ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel);
595 ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel);
596 }
597
598 #define transpose4x16(r0, r1, r2, r3) { \
599 register vec_u8_t r4; \
600 register vec_u8_t r5; \
601 register vec_u8_t r6; \
602 register vec_u8_t r7; \
603 \
604 r4 = vec_mergeh(r0, r2); /*0, 2 set 0*/ \
605 r5 = vec_mergel(r0, r2); /*0, 2 set 1*/ \
606 r6 = vec_mergeh(r1, r3); /*1, 3 set 0*/ \
607 r7 = vec_mergel(r1, r3); /*1, 3 set 1*/ \
608 \
609 r0 = vec_mergeh(r4, r6); /*all set 0*/ \
610 r1 = vec_mergel(r4, r6); /*all set 1*/ \
611 r2 = vec_mergeh(r5, r7); /*all set 2*/ \
612 r3 = vec_mergel(r5, r7); /*all set 3*/ \
613 }
614
615 static inline void write16x4(uint8_t *dst, int dst_stride,
616 register vec_u8_t r0, register vec_u8_t r1,
617 register vec_u8_t r2, register vec_u8_t r3) {
618 DECLARE_ALIGNED_16(unsigned char, result[64]);
619 uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst;
620 int int_dst_stride = dst_stride/4;
621
622 vec_st(r0, 0, result);
623 vec_st(r1, 16, result);
624 vec_st(r2, 32, result);
625 vec_st(r3, 48, result);
626 /* FIXME: there has to be a better way!!!! */
627 *dst_int = *src_int;
628 *(dst_int+ int_dst_stride) = *(src_int + 1);
629 *(dst_int+ 2*int_dst_stride) = *(src_int + 2);
630 *(dst_int+ 3*int_dst_stride) = *(src_int + 3);
631 *(dst_int+ 4*int_dst_stride) = *(src_int + 4);
632 *(dst_int+ 5*int_dst_stride) = *(src_int + 5);
633 *(dst_int+ 6*int_dst_stride) = *(src_int + 6);
634 *(dst_int+ 7*int_dst_stride) = *(src_int + 7);
635 *(dst_int+ 8*int_dst_stride) = *(src_int + 8);
636 *(dst_int+ 9*int_dst_stride) = *(src_int + 9);
637 *(dst_int+10*int_dst_stride) = *(src_int + 10);
638 *(dst_int+11*int_dst_stride) = *(src_int + 11);
639 *(dst_int+12*int_dst_stride) = *(src_int + 12);
640 *(dst_int+13*int_dst_stride) = *(src_int + 13);
641 *(dst_int+14*int_dst_stride) = *(src_int + 14);
642 *(dst_int+15*int_dst_stride) = *(src_int + 15);
643 }
644
645 /** \brief performs a 6x16 transpose of data in src, and stores it to dst
646 \todo FIXME: see if we can't spare some vec_lvsl() by them factorizing
647 out of unaligned_load() */
648 #define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\
649 register vec_u8_t r0 = unaligned_load(0, src); \
650 register vec_u8_t r1 = unaligned_load( src_stride, src); \
651 register vec_u8_t r2 = unaligned_load(2* src_stride, src); \
652 register vec_u8_t r3 = unaligned_load(3* src_stride, src); \
653 register vec_u8_t r4 = unaligned_load(4* src_stride, src); \
654 register vec_u8_t r5 = unaligned_load(5* src_stride, src); \
655 register vec_u8_t r6 = unaligned_load(6* src_stride, src); \
656 register vec_u8_t r7 = unaligned_load(7* src_stride, src); \
657 register vec_u8_t r14 = unaligned_load(14*src_stride, src); \
658 register vec_u8_t r15 = unaligned_load(15*src_stride, src); \
659 \
660 r8 = unaligned_load( 8*src_stride, src); \
661 r9 = unaligned_load( 9*src_stride, src); \
662 r10 = unaligned_load(10*src_stride, src); \
663 r11 = unaligned_load(11*src_stride, src); \
664 r12 = unaligned_load(12*src_stride, src); \
665 r13 = unaligned_load(13*src_stride, src); \
666 \
667 /*Merge first pairs*/ \
668 r0 = vec_mergeh(r0, r8); /*0, 8*/ \
669 r1 = vec_mergeh(r1, r9); /*1, 9*/ \
670 r2 = vec_mergeh(r2, r10); /*2,10*/ \
671 r3 = vec_mergeh(r3, r11); /*3,11*/ \
672 r4 = vec_mergeh(r4, r12); /*4,12*/ \
673 r5 = vec_mergeh(r5, r13); /*5,13*/ \
674 r6 = vec_mergeh(r6, r14); /*6,14*/ \
675 r7 = vec_mergeh(r7, r15); /*7,15*/ \
676 \
677 /*Merge second pairs*/ \
678 r8 = vec_mergeh(r0, r4); /*0,4, 8,12 set 0*/ \
679 r9 = vec_mergel(r0, r4); /*0,4, 8,12 set 1*/ \
680 r10 = vec_mergeh(r1, r5); /*1,5, 9,13 set 0*/ \
681 r11 = vec_mergel(r1, r5); /*1,5, 9,13 set 1*/ \
682 r12 = vec_mergeh(r2, r6); /*2,6,10,14 set 0*/ \
683 r13 = vec_mergel(r2, r6); /*2,6,10,14 set 1*/ \
684 r14 = vec_mergeh(r3, r7); /*3,7,11,15 set 0*/ \
685 r15 = vec_mergel(r3, r7); /*3,7,11,15 set 1*/ \
686 \
687 /*Third merge*/ \
688 r0 = vec_mergeh(r8, r12); /*0,2,4,6,8,10,12,14 set 0*/ \
689 r1 = vec_mergel(r8, r12); /*0,2,4,6,8,10,12,14 set 1*/ \
690 r2 = vec_mergeh(r9, r13); /*0,2,4,6,8,10,12,14 set 2*/ \
691 r4 = vec_mergeh(r10, r14); /*1,3,5,7,9,11,13,15 set 0*/ \
692 r5 = vec_mergel(r10, r14); /*1,3,5,7,9,11,13,15 set 1*/ \
693 r6 = vec_mergeh(r11, r15); /*1,3,5,7,9,11,13,15 set 2*/ \
694 /* Don't need to compute 3 and 7*/ \
695 \
696 /*Final merge*/ \
697 r8 = vec_mergeh(r0, r4); /*all set 0*/ \
698 r9 = vec_mergel(r0, r4); /*all set 1*/ \
699 r10 = vec_mergeh(r1, r5); /*all set 2*/ \
700 r11 = vec_mergel(r1, r5); /*all set 3*/ \
701 r12 = vec_mergeh(r2, r6); /*all set 4*/ \
702 r13 = vec_mergel(r2, r6); /*all set 5*/ \
703 /* Don't need to compute 14 and 15*/ \
704 \
705 }
706
707 // out: o = |x-y| < a
708 static inline vec_u8_t diff_lt_altivec ( register vec_u8_t x,
709 register vec_u8_t y,
710 register vec_u8_t a) {
711
712 register vec_u8_t diff = vec_subs(x, y);
713 register vec_u8_t diffneg = vec_subs(y, x);
714 register vec_u8_t o = vec_or(diff, diffneg); /* |x-y| */
715 o = (vec_u8_t)vec_cmplt(o, a);
716 return o;
717 }
718
719 static inline vec_u8_t h264_deblock_mask ( register vec_u8_t p0,
720 register vec_u8_t p1,
721 register vec_u8_t q0,
722 register vec_u8_t q1,
723 register vec_u8_t alpha,
724 register vec_u8_t beta) {
725
726 register vec_u8_t mask;
727 register vec_u8_t tempmask;
728
729 mask = diff_lt_altivec(p0, q0, alpha);
730 tempmask = diff_lt_altivec(p1, p0, beta);
731 mask = vec_and(mask, tempmask);
732 tempmask = diff_lt_altivec(q1, q0, beta);
733 mask = vec_and(mask, tempmask);
734
735 return mask;
736 }
737
738 // out: newp1 = clip((p2 + ((p0 + q0 + 1) >> 1)) >> 1, p1-tc0, p1+tc0)
739 static inline vec_u8_t h264_deblock_q1(register vec_u8_t p0,
740 register vec_u8_t p1,
741 register vec_u8_t p2,
742 register vec_u8_t q0,
743 register vec_u8_t tc0) {
744
745 register vec_u8_t average = vec_avg(p0, q0);
746 register vec_u8_t temp;
747 register vec_u8_t uncliped;
748 register vec_u8_t ones;
749 register vec_u8_t max;
750 register vec_u8_t min;
751 register vec_u8_t newp1;
752
753 temp = vec_xor(average, p2);
754 average = vec_avg(average, p2); /*avg(p2, avg(p0, q0)) */
755 ones = vec_splat_u8(1);
756 temp = vec_and(temp, ones); /*(p2^avg(p0, q0)) & 1 */
757 uncliped = vec_subs(average, temp); /*(p2+((p0+q0+1)>>1))>>1 */
758 max = vec_adds(p1, tc0);
759 min = vec_subs(p1, tc0);
760 newp1 = vec_max(min, uncliped);
761 newp1 = vec_min(max, newp1);
762 return newp1;
763 }
764
765 #define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) { \
766 \
767 const vec_u8_t A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4)); \
768 \
769 register vec_u8_t pq0bit = vec_xor(p0,q0); \
770 register vec_u8_t q1minus; \
771 register vec_u8_t p0minus; \
772 register vec_u8_t stage1; \
773 register vec_u8_t stage2; \
774 register vec_u8_t vec160; \
775 register vec_u8_t delta; \
776 register vec_u8_t deltaneg; \
777 \
778 q1minus = vec_nor(q1, q1); /* 255 - q1 */ \
779 stage1 = vec_avg(p1, q1minus); /* (p1 - q1 + 256)>>1 */ \
780 stage2 = vec_sr(stage1, vec_splat_u8(1)); /* (p1 - q1 + 256)>>2 = 64 + (p1 - q1) >> 2 */ \
781 p0minus = vec_nor(p0, p0); /* 255 - p0 */ \
782 stage1 = vec_avg(q0, p0minus); /* (q0 - p0 + 256)>>1 */ \
783 pq0bit = vec_and(pq0bit, vec_splat_u8(1)); \
784 stage2 = vec_avg(stage2, pq0bit); /* 32 + ((q0 - p0)&1 + (p1 - q1) >> 2 + 1) >> 1 */ \
785 stage2 = vec_adds(stage2, stage1); /* 160 + ((p0 - q0) + (p1 - q1) >> 2 + 1) >> 1 */ \
786 vec160 = vec_ld(0, &A0v); \
787 deltaneg = vec_subs(vec160, stage2); /* -d */ \
788 delta = vec_subs(stage2, vec160); /* d */ \
789 deltaneg = vec_min(tc0masked, deltaneg); \
790 delta = vec_min(tc0masked, delta); \
791 p0 = vec_subs(p0, deltaneg); \
792 q0 = vec_subs(q0, delta); \
793 p0 = vec_adds(p0, delta); \
794 q0 = vec_adds(q0, deltaneg); \
795 }
796
797 #define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) { \
798 DECLARE_ALIGNED_16(unsigned char, temp[16]); \
799 register vec_u8_t alphavec; \
800 register vec_u8_t betavec; \
801 register vec_u8_t mask; \
802 register vec_u8_t p1mask; \
803 register vec_u8_t q1mask; \
804 register vector signed char tc0vec; \
805 register vec_u8_t finaltc0; \
806 register vec_u8_t tc0masked; \
807 register vec_u8_t newp1; \
808 register vec_u8_t newq1; \
809 \
810 temp[0] = alpha; \
811 temp[1] = beta; \
812 alphavec = vec_ld(0, temp); \
813 betavec = vec_splat(alphavec, 0x1); \
814 alphavec = vec_splat(alphavec, 0x0); \
815 mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); /*if in block */ \
816 \
817 *((int *)temp) = *((int *)tc0); \
818 tc0vec = vec_ld(0, (signed char*)temp); \
819 tc0vec = vec_mergeh(tc0vec, tc0vec); \
820 tc0vec = vec_mergeh(tc0vec, tc0vec); \
821 mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1))); /* if tc0[i] >= 0 */ \
822 finaltc0 = vec_and((vec_u8_t)tc0vec, mask); /* tc = tc0 */ \
823 \
824 p1mask = diff_lt_altivec(p2, p0, betavec); \
825 p1mask = vec_and(p1mask, mask); /* if ( |p2 - p0| < beta) */ \
826 tc0masked = vec_and(p1mask, (vec_u8_t)tc0vec); \
827 finaltc0 = vec_sub(finaltc0, p1mask); /* tc++ */ \
828 newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked); \
829 /*end if*/ \
830 \
831 q1mask = diff_lt_altivec(q2, q0, betavec); \
832 q1mask = vec_and(q1mask, mask); /* if ( |q2 - q0| < beta ) */\
833 tc0masked = vec_and(q1mask, (vec_u8_t)tc0vec); \
834 finaltc0 = vec_sub(finaltc0, q1mask); /* tc++ */ \
835 newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked); \
836 /*end if*/ \
837 \
838 h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0); \
839 p1 = newp1; \
840 q1 = newq1; \
841 }
842
843 static void h264_v_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
844
845 if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) {
846 register vec_u8_t p2 = vec_ld(-3*stride, pix);
847 register vec_u8_t p1 = vec_ld(-2*stride, pix);
848 register vec_u8_t p0 = vec_ld(-1*stride, pix);
849 register vec_u8_t q0 = vec_ld(0, pix);
850 register vec_u8_t q1 = vec_ld(stride, pix);
851 register vec_u8_t q2 = vec_ld(2*stride, pix);
852 h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0);
853 vec_st(p1, -2*stride, pix);
854 vec_st(p0, -1*stride, pix);
855 vec_st(q0, 0, pix);
856 vec_st(q1, stride, pix);
857 }
858 }
859
860 static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
861
862 register vec_u8_t line0, line1, line2, line3, line4, line5;
863 if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0)
864 return;
865 readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5);
866 h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0);
867 transpose4x16(line1, line2, line3, line4);
868 write16x4(pix-2, stride, line1, line2, line3, line4);
869 }
870
871 void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
872
873 if (has_altivec()) {
874 c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
875 c->put_no_rnd_h264_chroma_pixels_tab[0] = put_no_rnd_h264_chroma_mc8_altivec;
876 c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
877 c->h264_idct_add = ff_h264_idct_add_altivec;
878 c->h264_idct8_add = ff_h264_idct8_add_altivec;
879 c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_altivec;
880 c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_altivec;
881
882 #define dspfunc(PFX, IDX, NUM) \
883 c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_altivec; \
884 c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_altivec; \
885 c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_altivec; \
886 c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_altivec; \
887 c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_altivec; \
888 c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_altivec; \
889 c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_altivec; \
890 c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_altivec; \
891 c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_altivec; \
892 c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_altivec; \
893 c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_altivec; \
894 c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_altivec; \
895 c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_altivec; \
896 c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_altivec; \
897 c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_altivec; \
898 c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_altivec
899
900 dspfunc(put_h264_qpel, 0, 16);
901 dspfunc(avg_h264_qpel, 0, 16);
902 #undef dspfunc
903 }
904 }