Merge remote-tracking branch 'qatar/master'
[ffmpeg.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 "libavutil/cpu.h"
22 #include "libavcodec/dsputil.h"
23 #include "libavcodec/h264data.h"
24 #include "libavcodec/h264dsp.h"
25
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     ff_ ## 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 static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
184                                     const uint8_t * src2, int dst_stride,
185                                     int src_stride1, int h)
186 {
187     int i;
188     vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
189
190     mask_ = vec_lvsl(0, src2);
191
192     for (i = 0; i < h; i++) {
193
194         tmp1 = vec_ld(i * src_stride1, src1);
195         mask = vec_lvsl(i * src_stride1, src1);
196         tmp2 = vec_ld(i * src_stride1 + 15, src1);
197
198         a = vec_perm(tmp1, tmp2, mask);
199
200         tmp1 = vec_ld(i * 16, src2);
201         tmp2 = vec_ld(i * 16 + 15, src2);
202
203         b = vec_perm(tmp1, tmp2, mask_);
204
205         tmp1 = vec_ld(0, dst);
206         mask = vec_lvsl(0, dst);
207         tmp2 = vec_ld(15, dst);
208
209         d = vec_avg(a, b);
210
211         edges = vec_perm(tmp2, tmp1, mask);
212
213         align = vec_lvsr(0, dst);
214
215         tmp2 = vec_perm(d, edges, align);
216         tmp1 = vec_perm(edges, d, align);
217
218         vec_st(tmp2, 15, dst);
219         vec_st(tmp1, 0 , dst);
220
221         dst += dst_stride;
222     }
223 }
224
225 static inline void avg_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
226                                     const uint8_t * src2, int dst_stride,
227                                     int src_stride1, int h)
228 {
229     int i;
230     vec_u8 a, b, d, tmp1, tmp2, mask, mask_, edges, align;
231
232     mask_ = vec_lvsl(0, src2);
233
234     for (i = 0; i < h; i++) {
235
236         tmp1 = vec_ld(i * src_stride1, src1);
237         mask = vec_lvsl(i * src_stride1, src1);
238         tmp2 = vec_ld(i * src_stride1 + 15, src1);
239
240         a = vec_perm(tmp1, tmp2, mask);
241
242         tmp1 = vec_ld(i * 16, src2);
243         tmp2 = vec_ld(i * 16 + 15, src2);
244
245         b = vec_perm(tmp1, tmp2, mask_);
246
247         tmp1 = vec_ld(0, dst);
248         mask = vec_lvsl(0, dst);
249         tmp2 = vec_ld(15, dst);
250
251         d = vec_avg(vec_perm(tmp1, tmp2, mask), vec_avg(a, b));
252
253         edges = vec_perm(tmp2, tmp1, mask);
254
255         align = vec_lvsr(0, dst);
256
257         tmp2 = vec_perm(d, edges, align);
258         tmp1 = vec_perm(edges, d, align);
259
260         vec_st(tmp2, 15, dst);
261         vec_st(tmp1, 0 , dst);
262
263         dst += dst_stride;
264     }
265 }
266
267 /* Implemented but could be faster
268 #define put_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) put_pixels16_l2(d,s1,s2,ds,s1s,16,h)
269 #define avg_pixels16_l2_altivec(d,s1,s2,ds,s1s,h) avg_pixels16_l2(d,s1,s2,ds,s1s,16,h)
270  */
271
272 H264_MC(put_, 16, altivec)
273 H264_MC(avg_, 16, altivec)
274
275
276 /****************************************************************************
277  * IDCT transform:
278  ****************************************************************************/
279
280 #define VEC_1D_DCT(vb0,vb1,vb2,vb3,va0,va1,va2,va3)               \
281     /* 1st stage */                                               \
282     vz0 = vec_add(vb0,vb2);       /* temp[0] = Y[0] + Y[2] */     \
283     vz1 = vec_sub(vb0,vb2);       /* temp[1] = Y[0] - Y[2] */     \
284     vz2 = vec_sra(vb1,vec_splat_u16(1));                          \
285     vz2 = vec_sub(vz2,vb3);       /* temp[2] = Y[1].1/2 - Y[3] */ \
286     vz3 = vec_sra(vb3,vec_splat_u16(1));                          \
287     vz3 = vec_add(vb1,vz3);       /* temp[3] = Y[1] + Y[3].1/2 */ \
288     /* 2nd stage: output */                                       \
289     va0 = vec_add(vz0,vz3);       /* x[0] = temp[0] + temp[3] */  \
290     va1 = vec_add(vz1,vz2);       /* x[1] = temp[1] + temp[2] */  \
291     va2 = vec_sub(vz1,vz2);       /* x[2] = temp[1] - temp[2] */  \
292     va3 = vec_sub(vz0,vz3)        /* x[3] = temp[0] - temp[3] */
293
294 #define VEC_TRANSPOSE_4(a0,a1,a2,a3,b0,b1,b2,b3) \
295     b0 = vec_mergeh( a0, a0 ); \
296     b1 = vec_mergeh( a1, a0 ); \
297     b2 = vec_mergeh( a2, a0 ); \
298     b3 = vec_mergeh( a3, a0 ); \
299     a0 = vec_mergeh( b0, b2 ); \
300     a1 = vec_mergel( b0, b2 ); \
301     a2 = vec_mergeh( b1, b3 ); \
302     a3 = vec_mergel( b1, b3 ); \
303     b0 = vec_mergeh( a0, a2 ); \
304     b1 = vec_mergel( a0, a2 ); \
305     b2 = vec_mergeh( a1, a3 ); \
306     b3 = vec_mergel( a1, a3 )
307
308 #define VEC_LOAD_U8_ADD_S16_STORE_U8(va)                      \
309     vdst_orig = vec_ld(0, dst);                               \
310     vdst = vec_perm(vdst_orig, zero_u8v, vdst_mask);          \
311     vdst_ss = (vec_s16) vec_mergeh(zero_u8v, vdst);         \
312     va = vec_add(va, vdst_ss);                                \
313     va_u8 = vec_packsu(va, zero_s16v);                        \
314     va_u32 = vec_splat((vec_u32)va_u8, 0);                  \
315     vec_ste(va_u32, element, (uint32_t*)dst);
316
317 static void ff_h264_idct_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
318 {
319     vec_s16 va0, va1, va2, va3;
320     vec_s16 vz0, vz1, vz2, vz3;
321     vec_s16 vtmp0, vtmp1, vtmp2, vtmp3;
322     vec_u8 va_u8;
323     vec_u32 va_u32;
324     vec_s16 vdst_ss;
325     const vec_u16 v6us = vec_splat_u16(6);
326     vec_u8 vdst, vdst_orig;
327     vec_u8 vdst_mask = vec_lvsl(0, dst);
328     int element = ((unsigned long)dst & 0xf) >> 2;
329     LOAD_ZERO;
330
331     block[0] += 32;  /* add 32 as a DC-level for rounding */
332
333     vtmp0 = vec_ld(0,block);
334     vtmp1 = vec_sld(vtmp0, vtmp0, 8);
335     vtmp2 = vec_ld(16,block);
336     vtmp3 = vec_sld(vtmp2, vtmp2, 8);
337
338     VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
339     VEC_TRANSPOSE_4(va0,va1,va2,va3,vtmp0,vtmp1,vtmp2,vtmp3);
340     VEC_1D_DCT(vtmp0,vtmp1,vtmp2,vtmp3,va0,va1,va2,va3);
341
342     va0 = vec_sra(va0,v6us);
343     va1 = vec_sra(va1,v6us);
344     va2 = vec_sra(va2,v6us);
345     va3 = vec_sra(va3,v6us);
346
347     VEC_LOAD_U8_ADD_S16_STORE_U8(va0);
348     dst += stride;
349     VEC_LOAD_U8_ADD_S16_STORE_U8(va1);
350     dst += stride;
351     VEC_LOAD_U8_ADD_S16_STORE_U8(va2);
352     dst += stride;
353     VEC_LOAD_U8_ADD_S16_STORE_U8(va3);
354 }
355
356 #define IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,  d0, d1, d2, d3, d4, d5, d6, d7) {\
357     /*        a0  = SRC(0) + SRC(4); */ \
358     vec_s16 a0v = vec_add(s0, s4);    \
359     /*        a2  = SRC(0) - SRC(4); */ \
360     vec_s16 a2v = vec_sub(s0, s4);    \
361     /*        a4  =           (SRC(2)>>1) - SRC(6); */ \
362     vec_s16 a4v = vec_sub(vec_sra(s2, onev), s6);    \
363     /*        a6  =           (SRC(6)>>1) + SRC(2); */ \
364     vec_s16 a6v = vec_add(vec_sra(s6, onev), s2);    \
365     /*        b0  =         a0 + a6; */ \
366     vec_s16 b0v = vec_add(a0v, a6v);  \
367     /*        b2  =         a2 + a4; */ \
368     vec_s16 b2v = vec_add(a2v, a4v);  \
369     /*        b4  =         a2 - a4; */ \
370     vec_s16 b4v = vec_sub(a2v, a4v);  \
371     /*        b6  =         a0 - a6; */ \
372     vec_s16 b6v = vec_sub(a0v, a6v);  \
373     /* a1 =  SRC(5) - SRC(3) - SRC(7) - (SRC(7)>>1); */ \
374     /*        a1 =             (SRC(5)-SRC(3)) -  (SRC(7)  +  (SRC(7)>>1)); */ \
375     vec_s16 a1v = vec_sub( vec_sub(s5, s3), vec_add(s7, vec_sra(s7, onev)) ); \
376     /* a3 =  SRC(7) + SRC(1) - SRC(3) - (SRC(3)>>1); */ \
377     /*        a3 =             (SRC(7)+SRC(1)) -  (SRC(3)  +  (SRC(3)>>1)); */ \
378     vec_s16 a3v = vec_sub( vec_add(s7, s1), vec_add(s3, vec_sra(s3, onev)) );\
379     /* a5 =  SRC(7) - SRC(1) + SRC(5) + (SRC(5)>>1); */ \
380     /*        a5 =             (SRC(7)-SRC(1)) +   SRC(5) +   (SRC(5)>>1); */ \
381     vec_s16 a5v = vec_add( vec_sub(s7, s1), vec_add(s5, vec_sra(s5, onev)) );\
382     /*        a7 =                SRC(5)+SRC(3) +  SRC(1) +   (SRC(1)>>1); */ \
383     vec_s16 a7v = vec_add( vec_add(s5, s3), vec_add(s1, vec_sra(s1, onev)) );\
384     /*        b1 =                  (a7>>2)  +  a1; */ \
385     vec_s16 b1v = vec_add( vec_sra(a7v, twov), a1v); \
386     /*        b3 =          a3 +        (a5>>2); */ \
387     vec_s16 b3v = vec_add(a3v, vec_sra(a5v, twov)); \
388     /*        b5 =                  (a3>>2)  -   a5; */ \
389     vec_s16 b5v = vec_sub( vec_sra(a3v, twov), a5v); \
390     /*        b7 =           a7 -        (a1>>2); */ \
391     vec_s16 b7v = vec_sub( a7v, vec_sra(a1v, twov)); \
392     /* DST(0,    b0 + b7); */ \
393     d0 = vec_add(b0v, b7v); \
394     /* DST(1,    b2 + b5); */ \
395     d1 = vec_add(b2v, b5v); \
396     /* DST(2,    b4 + b3); */ \
397     d2 = vec_add(b4v, b3v); \
398     /* DST(3,    b6 + b1); */ \
399     d3 = vec_add(b6v, b1v); \
400     /* DST(4,    b6 - b1); */ \
401     d4 = vec_sub(b6v, b1v); \
402     /* DST(5,    b4 - b3); */ \
403     d5 = vec_sub(b4v, b3v); \
404     /* DST(6,    b2 - b5); */ \
405     d6 = vec_sub(b2v, b5v); \
406     /* DST(7,    b0 - b7); */ \
407     d7 = vec_sub(b0v, b7v); \
408 }
409
410 #define ALTIVEC_STORE_SUM_CLIP(dest, idctv, perm_ldv, perm_stv, sel) { \
411     /* unaligned load */                                       \
412     vec_u8 hv = vec_ld( 0, dest );                           \
413     vec_u8 lv = vec_ld( 7, dest );                           \
414     vec_u8 dstv   = vec_perm( hv, lv, (vec_u8)perm_ldv );  \
415     vec_s16 idct_sh6 = vec_sra(idctv, sixv);                 \
416     vec_u16 dst16 = (vec_u16)vec_mergeh(zero_u8v, dstv);   \
417     vec_s16 idstsum = vec_adds(idct_sh6, (vec_s16)dst16);  \
418     vec_u8 idstsum8 = vec_packsu(zero_s16v, idstsum);        \
419     vec_u8 edgehv;                                           \
420     /* unaligned store */                                      \
421     vec_u8 bodyv  = vec_perm( idstsum8, idstsum8, perm_stv );\
422     vec_u8 edgelv = vec_perm( sel, zero_u8v, perm_stv );     \
423     lv    = vec_sel( lv, bodyv, edgelv );                      \
424     vec_st( lv, 7, dest );                                     \
425     hv    = vec_ld( 0, dest );                                 \
426     edgehv = vec_perm( zero_u8v, sel, perm_stv );              \
427     hv    = vec_sel( hv, bodyv, edgehv );                      \
428     vec_st( hv, 0, dest );                                     \
429  }
430
431 static void ff_h264_idct8_add_altivec( uint8_t *dst, DCTELEM *dct, int stride ) {
432     vec_s16 s0, s1, s2, s3, s4, s5, s6, s7;
433     vec_s16 d0, d1, d2, d3, d4, d5, d6, d7;
434     vec_s16 idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7;
435
436     vec_u8 perm_ldv = vec_lvsl(0, dst);
437     vec_u8 perm_stv = vec_lvsr(8, dst);
438
439     const vec_u16 onev = vec_splat_u16(1);
440     const vec_u16 twov = vec_splat_u16(2);
441     const vec_u16 sixv = vec_splat_u16(6);
442
443     const vec_u8 sel = (vec_u8) {0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1};
444     LOAD_ZERO;
445
446     dct[0] += 32; // rounding for the >>6 at the end
447
448     s0 = vec_ld(0x00, (int16_t*)dct);
449     s1 = vec_ld(0x10, (int16_t*)dct);
450     s2 = vec_ld(0x20, (int16_t*)dct);
451     s3 = vec_ld(0x30, (int16_t*)dct);
452     s4 = vec_ld(0x40, (int16_t*)dct);
453     s5 = vec_ld(0x50, (int16_t*)dct);
454     s6 = vec_ld(0x60, (int16_t*)dct);
455     s7 = vec_ld(0x70, (int16_t*)dct);
456
457     IDCT8_1D_ALTIVEC(s0, s1, s2, s3, s4, s5, s6, s7,
458                      d0, d1, d2, d3, d4, d5, d6, d7);
459
460     TRANSPOSE8( d0,  d1,  d2,  d3,  d4,  d5,  d6, d7 );
461
462     IDCT8_1D_ALTIVEC(d0,  d1,  d2,  d3,  d4,  d5,  d6, d7,
463                      idct0, idct1, idct2, idct3, idct4, idct5, idct6, idct7);
464
465     ALTIVEC_STORE_SUM_CLIP(&dst[0*stride], idct0, perm_ldv, perm_stv, sel);
466     ALTIVEC_STORE_SUM_CLIP(&dst[1*stride], idct1, perm_ldv, perm_stv, sel);
467     ALTIVEC_STORE_SUM_CLIP(&dst[2*stride], idct2, perm_ldv, perm_stv, sel);
468     ALTIVEC_STORE_SUM_CLIP(&dst[3*stride], idct3, perm_ldv, perm_stv, sel);
469     ALTIVEC_STORE_SUM_CLIP(&dst[4*stride], idct4, perm_ldv, perm_stv, sel);
470     ALTIVEC_STORE_SUM_CLIP(&dst[5*stride], idct5, perm_ldv, perm_stv, sel);
471     ALTIVEC_STORE_SUM_CLIP(&dst[6*stride], idct6, perm_ldv, perm_stv, sel);
472     ALTIVEC_STORE_SUM_CLIP(&dst[7*stride], idct7, perm_ldv, perm_stv, sel);
473 }
474
475 static av_always_inline void h264_idct_dc_add_internal(uint8_t *dst, DCTELEM *block, int stride, int size)
476 {
477     vec_s16 dc16;
478     vec_u8 dcplus, dcminus, v0, v1, v2, v3, aligner;
479     LOAD_ZERO;
480     DECLARE_ALIGNED(16, int, dc);
481     int i;
482
483     dc = (block[0] + 32) >> 6;
484     dc16 = vec_splat((vec_s16) vec_lde(0, &dc), 1);
485
486     if (size == 4)
487         dc16 = vec_sld(dc16, zero_s16v, 8);
488     dcplus = vec_packsu(dc16, zero_s16v);
489     dcminus = vec_packsu(vec_sub(zero_s16v, dc16), zero_s16v);
490
491     aligner = vec_lvsr(0, dst);
492     dcplus = vec_perm(dcplus, dcplus, aligner);
493     dcminus = vec_perm(dcminus, dcminus, aligner);
494
495     for (i = 0; i < size; i += 4) {
496         v0 = vec_ld(0, dst+0*stride);
497         v1 = vec_ld(0, dst+1*stride);
498         v2 = vec_ld(0, dst+2*stride);
499         v3 = vec_ld(0, dst+3*stride);
500
501         v0 = vec_adds(v0, dcplus);
502         v1 = vec_adds(v1, dcplus);
503         v2 = vec_adds(v2, dcplus);
504         v3 = vec_adds(v3, dcplus);
505
506         v0 = vec_subs(v0, dcminus);
507         v1 = vec_subs(v1, dcminus);
508         v2 = vec_subs(v2, dcminus);
509         v3 = vec_subs(v3, dcminus);
510
511         vec_st(v0, 0, dst+0*stride);
512         vec_st(v1, 0, dst+1*stride);
513         vec_st(v2, 0, dst+2*stride);
514         vec_st(v3, 0, dst+3*stride);
515
516         dst += 4*stride;
517     }
518 }
519
520 static void h264_idct_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
521 {
522     h264_idct_dc_add_internal(dst, block, stride, 4);
523 }
524
525 static void ff_h264_idct8_dc_add_altivec(uint8_t *dst, DCTELEM *block, int stride)
526 {
527     h264_idct_dc_add_internal(dst, block, stride, 8);
528 }
529
530 static void ff_h264_idct_add16_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[15*8]){
531     int i;
532     for(i=0; i<16; i++){
533         int nnz = nnzc[ scan8[i] ];
534         if(nnz){
535             if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
536             else                      ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
537         }
538     }
539 }
540
541 static void ff_h264_idct_add16intra_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[15*8]){
542     int i;
543     for(i=0; i<16; i++){
544         if(nnzc[ scan8[i] ]) ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
545         else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
546     }
547 }
548
549 static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[15*8]){
550     int i;
551     for(i=0; i<16; i+=4){
552         int nnz = nnzc[ scan8[i] ];
553         if(nnz){
554             if(nnz==1 && block[i*16]) ff_h264_idct8_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
555             else                      ff_h264_idct8_add_altivec   (dst + block_offset[i], block + i*16, stride);
556         }
557     }
558 }
559
560 static void ff_h264_idct_add8_altivec(uint8_t **dest, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[15*8]){
561     int i, j;
562     for (j = 1; j < 3; j++) {
563         for(i = j * 16; i < j * 16 + 4; i++){
564             if(nnzc[ scan8[i] ])
565                 ff_h264_idct_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride);
566             else if(block[i*16])
567                 h264_idct_dc_add_altivec(dest[j-1] + block_offset[i], block + i*16, stride);
568         }
569     }
570 }
571
572 #define transpose4x16(r0, r1, r2, r3) {      \
573     register vec_u8 r4;                    \
574     register vec_u8 r5;                    \
575     register vec_u8 r6;                    \
576     register vec_u8 r7;                    \
577                                              \
578     r4 = vec_mergeh(r0, r2);  /*0, 2 set 0*/ \
579     r5 = vec_mergel(r0, r2);  /*0, 2 set 1*/ \
580     r6 = vec_mergeh(r1, r3);  /*1, 3 set 0*/ \
581     r7 = vec_mergel(r1, r3);  /*1, 3 set 1*/ \
582                                              \
583     r0 = vec_mergeh(r4, r6);  /*all set 0*/  \
584     r1 = vec_mergel(r4, r6);  /*all set 1*/  \
585     r2 = vec_mergeh(r5, r7);  /*all set 2*/  \
586     r3 = vec_mergel(r5, r7);  /*all set 3*/  \
587 }
588
589 static inline void write16x4(uint8_t *dst, int dst_stride,
590                              register vec_u8 r0, register vec_u8 r1,
591                              register vec_u8 r2, register vec_u8 r3) {
592     DECLARE_ALIGNED(16, unsigned char, result)[64];
593     uint32_t *src_int = (uint32_t *)result, *dst_int = (uint32_t *)dst;
594     int int_dst_stride = dst_stride/4;
595
596     vec_st(r0, 0, result);
597     vec_st(r1, 16, result);
598     vec_st(r2, 32, result);
599     vec_st(r3, 48, result);
600     /* FIXME: there has to be a better way!!!! */
601     *dst_int = *src_int;
602     *(dst_int+   int_dst_stride) = *(src_int + 1);
603     *(dst_int+ 2*int_dst_stride) = *(src_int + 2);
604     *(dst_int+ 3*int_dst_stride) = *(src_int + 3);
605     *(dst_int+ 4*int_dst_stride) = *(src_int + 4);
606     *(dst_int+ 5*int_dst_stride) = *(src_int + 5);
607     *(dst_int+ 6*int_dst_stride) = *(src_int + 6);
608     *(dst_int+ 7*int_dst_stride) = *(src_int + 7);
609     *(dst_int+ 8*int_dst_stride) = *(src_int + 8);
610     *(dst_int+ 9*int_dst_stride) = *(src_int + 9);
611     *(dst_int+10*int_dst_stride) = *(src_int + 10);
612     *(dst_int+11*int_dst_stride) = *(src_int + 11);
613     *(dst_int+12*int_dst_stride) = *(src_int + 12);
614     *(dst_int+13*int_dst_stride) = *(src_int + 13);
615     *(dst_int+14*int_dst_stride) = *(src_int + 14);
616     *(dst_int+15*int_dst_stride) = *(src_int + 15);
617 }
618
619 /** @brief performs a 6x16 transpose of data in src, and stores it to dst
620     @todo FIXME: see if we can't spare some vec_lvsl() by them factorizing
621     out of unaligned_load() */
622 #define readAndTranspose16x6(src, src_stride, r8, r9, r10, r11, r12, r13) {\
623     register vec_u8 r0  = unaligned_load(0,             src);            \
624     register vec_u8 r1  = unaligned_load(   src_stride, src);            \
625     register vec_u8 r2  = unaligned_load(2* src_stride, src);            \
626     register vec_u8 r3  = unaligned_load(3* src_stride, src);            \
627     register vec_u8 r4  = unaligned_load(4* src_stride, src);            \
628     register vec_u8 r5  = unaligned_load(5* src_stride, src);            \
629     register vec_u8 r6  = unaligned_load(6* src_stride, src);            \
630     register vec_u8 r7  = unaligned_load(7* src_stride, src);            \
631     register vec_u8 r14 = unaligned_load(14*src_stride, src);            \
632     register vec_u8 r15 = unaligned_load(15*src_stride, src);            \
633                                                                            \
634     r8  = unaligned_load( 8*src_stride, src);                              \
635     r9  = unaligned_load( 9*src_stride, src);                              \
636     r10 = unaligned_load(10*src_stride, src);                              \
637     r11 = unaligned_load(11*src_stride, src);                              \
638     r12 = unaligned_load(12*src_stride, src);                              \
639     r13 = unaligned_load(13*src_stride, src);                              \
640                                                                            \
641     /*Merge first pairs*/                                                  \
642     r0 = vec_mergeh(r0, r8);    /*0, 8*/                                   \
643     r1 = vec_mergeh(r1, r9);    /*1, 9*/                                   \
644     r2 = vec_mergeh(r2, r10);   /*2,10*/                                   \
645     r3 = vec_mergeh(r3, r11);   /*3,11*/                                   \
646     r4 = vec_mergeh(r4, r12);   /*4,12*/                                   \
647     r5 = vec_mergeh(r5, r13);   /*5,13*/                                   \
648     r6 = vec_mergeh(r6, r14);   /*6,14*/                                   \
649     r7 = vec_mergeh(r7, r15);   /*7,15*/                                   \
650                                                                            \
651     /*Merge second pairs*/                                                 \
652     r8  = vec_mergeh(r0, r4);   /*0,4, 8,12 set 0*/                        \
653     r9  = vec_mergel(r0, r4);   /*0,4, 8,12 set 1*/                        \
654     r10 = vec_mergeh(r1, r5);   /*1,5, 9,13 set 0*/                        \
655     r11 = vec_mergel(r1, r5);   /*1,5, 9,13 set 1*/                        \
656     r12 = vec_mergeh(r2, r6);   /*2,6,10,14 set 0*/                        \
657     r13 = vec_mergel(r2, r6);   /*2,6,10,14 set 1*/                        \
658     r14 = vec_mergeh(r3, r7);   /*3,7,11,15 set 0*/                        \
659     r15 = vec_mergel(r3, r7);   /*3,7,11,15 set 1*/                        \
660                                                                            \
661     /*Third merge*/                                                        \
662     r0 = vec_mergeh(r8,  r12);  /*0,2,4,6,8,10,12,14 set 0*/               \
663     r1 = vec_mergel(r8,  r12);  /*0,2,4,6,8,10,12,14 set 1*/               \
664     r2 = vec_mergeh(r9,  r13);  /*0,2,4,6,8,10,12,14 set 2*/               \
665     r4 = vec_mergeh(r10, r14);  /*1,3,5,7,9,11,13,15 set 0*/               \
666     r5 = vec_mergel(r10, r14);  /*1,3,5,7,9,11,13,15 set 1*/               \
667     r6 = vec_mergeh(r11, r15);  /*1,3,5,7,9,11,13,15 set 2*/               \
668     /* Don't need to compute 3 and 7*/                                     \
669                                                                            \
670     /*Final merge*/                                                        \
671     r8  = vec_mergeh(r0, r4);   /*all set 0*/                              \
672     r9  = vec_mergel(r0, r4);   /*all set 1*/                              \
673     r10 = vec_mergeh(r1, r5);   /*all set 2*/                              \
674     r11 = vec_mergel(r1, r5);   /*all set 3*/                              \
675     r12 = vec_mergeh(r2, r6);   /*all set 4*/                              \
676     r13 = vec_mergel(r2, r6);   /*all set 5*/                              \
677     /* Don't need to compute 14 and 15*/                                   \
678                                                                            \
679 }
680
681 // out: o = |x-y| < a
682 static inline vec_u8 diff_lt_altivec ( register vec_u8 x,
683                                          register vec_u8 y,
684                                          register vec_u8 a) {
685
686     register vec_u8 diff = vec_subs(x, y);
687     register vec_u8 diffneg = vec_subs(y, x);
688     register vec_u8 o = vec_or(diff, diffneg); /* |x-y| */
689     o = (vec_u8)vec_cmplt(o, a);
690     return o;
691 }
692
693 static inline vec_u8 h264_deblock_mask ( register vec_u8 p0,
694                                            register vec_u8 p1,
695                                            register vec_u8 q0,
696                                            register vec_u8 q1,
697                                            register vec_u8 alpha,
698                                            register vec_u8 beta) {
699
700     register vec_u8 mask;
701     register vec_u8 tempmask;
702
703     mask = diff_lt_altivec(p0, q0, alpha);
704     tempmask = diff_lt_altivec(p1, p0, beta);
705     mask = vec_and(mask, tempmask);
706     tempmask = diff_lt_altivec(q1, q0, beta);
707     mask = vec_and(mask, tempmask);
708
709     return mask;
710 }
711
712 // out: newp1 = clip((p2 + ((p0 + q0 + 1) >> 1)) >> 1, p1-tc0, p1+tc0)
713 static inline vec_u8 h264_deblock_q1(register vec_u8 p0,
714                                        register vec_u8 p1,
715                                        register vec_u8 p2,
716                                        register vec_u8 q0,
717                                        register vec_u8 tc0) {
718
719     register vec_u8 average = vec_avg(p0, q0);
720     register vec_u8 temp;
721     register vec_u8 uncliped;
722     register vec_u8 ones;
723     register vec_u8 max;
724     register vec_u8 min;
725     register vec_u8 newp1;
726
727     temp = vec_xor(average, p2);
728     average = vec_avg(average, p2);     /*avg(p2, avg(p0, q0)) */
729     ones = vec_splat_u8(1);
730     temp = vec_and(temp, ones);         /*(p2^avg(p0, q0)) & 1 */
731     uncliped = vec_subs(average, temp); /*(p2+((p0+q0+1)>>1))>>1 */
732     max = vec_adds(p1, tc0);
733     min = vec_subs(p1, tc0);
734     newp1 = vec_max(min, uncliped);
735     newp1 = vec_min(max, newp1);
736     return newp1;
737 }
738
739 #define h264_deblock_p0_q0(p0, p1, q0, q1, tc0masked) {                                           \
740                                                                                                   \
741     const vec_u8 A0v = vec_sl(vec_splat_u8(10), vec_splat_u8(4));                               \
742                                                                                                   \
743     register vec_u8 pq0bit = vec_xor(p0,q0);                                                    \
744     register vec_u8 q1minus;                                                                    \
745     register vec_u8 p0minus;                                                                    \
746     register vec_u8 stage1;                                                                     \
747     register vec_u8 stage2;                                                                     \
748     register vec_u8 vec160;                                                                     \
749     register vec_u8 delta;                                                                      \
750     register vec_u8 deltaneg;                                                                   \
751                                                                                                   \
752     q1minus = vec_nor(q1, q1);                 /* 255 - q1 */                                     \
753     stage1 = vec_avg(p1, q1minus);             /* (p1 - q1 + 256)>>1 */                           \
754     stage2 = vec_sr(stage1, vec_splat_u8(1));  /* (p1 - q1 + 256)>>2 = 64 + (p1 - q1) >> 2 */     \
755     p0minus = vec_nor(p0, p0);                 /* 255 - p0 */                                     \
756     stage1 = vec_avg(q0, p0minus);             /* (q0 - p0 + 256)>>1 */                           \
757     pq0bit = vec_and(pq0bit, vec_splat_u8(1));                                                    \
758     stage2 = vec_avg(stage2, pq0bit);          /* 32 + ((q0 - p0)&1 + (p1 - q1) >> 2 + 1) >> 1 */ \
759     stage2 = vec_adds(stage2, stage1);         /* 160 + ((p0 - q0) + (p1 - q1) >> 2 + 1) >> 1 */  \
760     vec160 = vec_ld(0, &A0v);                                                                     \
761     deltaneg = vec_subs(vec160, stage2);       /* -d */                                           \
762     delta = vec_subs(stage2, vec160);          /* d */                                            \
763     deltaneg = vec_min(tc0masked, deltaneg);                                                      \
764     delta = vec_min(tc0masked, delta);                                                            \
765     p0 = vec_subs(p0, deltaneg);                                                                  \
766     q0 = vec_subs(q0, delta);                                                                     \
767     p0 = vec_adds(p0, delta);                                                                     \
768     q0 = vec_adds(q0, deltaneg);                                                                  \
769 }
770
771 #define h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0) {            \
772     DECLARE_ALIGNED(16, unsigned char, temp)[16];                                             \
773     register vec_u8 alphavec;                                                              \
774     register vec_u8 betavec;                                                               \
775     register vec_u8 mask;                                                                  \
776     register vec_u8 p1mask;                                                                \
777     register vec_u8 q1mask;                                                                \
778     register vector signed   char tc0vec;                                                    \
779     register vec_u8 finaltc0;                                                              \
780     register vec_u8 tc0masked;                                                             \
781     register vec_u8 newp1;                                                                 \
782     register vec_u8 newq1;                                                                 \
783                                                                                              \
784     temp[0] = alpha;                                                                         \
785     temp[1] = beta;                                                                          \
786     alphavec = vec_ld(0, temp);                                                              \
787     betavec = vec_splat(alphavec, 0x1);                                                      \
788     alphavec = vec_splat(alphavec, 0x0);                                                     \
789     mask = h264_deblock_mask(p0, p1, q0, q1, alphavec, betavec); /*if in block */            \
790                                                                                              \
791     *((int *)temp) = *((int *)tc0);                                                          \
792     tc0vec = vec_ld(0, (signed char*)temp);                                                  \
793     tc0vec = vec_mergeh(tc0vec, tc0vec);                                                     \
794     tc0vec = vec_mergeh(tc0vec, tc0vec);                                                     \
795     mask = vec_and(mask, vec_cmpgt(tc0vec, vec_splat_s8(-1)));  /* if tc0[i] >= 0 */         \
796     finaltc0 = vec_and((vec_u8)tc0vec, mask);     /* tc = tc0 */                           \
797                                                                                              \
798     p1mask = diff_lt_altivec(p2, p0, betavec);                                               \
799     p1mask = vec_and(p1mask, mask);                             /* if ( |p2 - p0| < beta) */ \
800     tc0masked = vec_and(p1mask, (vec_u8)tc0vec);                                           \
801     finaltc0 = vec_sub(finaltc0, p1mask);                       /* tc++ */                   \
802     newp1 = h264_deblock_q1(p0, p1, p2, q0, tc0masked);                                      \
803     /*end if*/                                                                               \
804                                                                                              \
805     q1mask = diff_lt_altivec(q2, q0, betavec);                                               \
806     q1mask = vec_and(q1mask, mask);                             /* if ( |q2 - q0| < beta ) */\
807     tc0masked = vec_and(q1mask, (vec_u8)tc0vec);                                           \
808     finaltc0 = vec_sub(finaltc0, q1mask);                       /* tc++ */                   \
809     newq1 = h264_deblock_q1(p0, q1, q2, q0, tc0masked);                                      \
810     /*end if*/                                                                               \
811                                                                                              \
812     h264_deblock_p0_q0(p0, p1, q0, q1, finaltc0);                                            \
813     p1 = newp1;                                                                              \
814     q1 = newq1;                                                                              \
815 }
816
817 static void h264_v_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
818
819     if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) >= 0) {
820         register vec_u8 p2 = vec_ld(-3*stride, pix);
821         register vec_u8 p1 = vec_ld(-2*stride, pix);
822         register vec_u8 p0 = vec_ld(-1*stride, pix);
823         register vec_u8 q0 = vec_ld(0, pix);
824         register vec_u8 q1 = vec_ld(stride, pix);
825         register vec_u8 q2 = vec_ld(2*stride, pix);
826         h264_loop_filter_luma_altivec(p2, p1, p0, q0, q1, q2, alpha, beta, tc0);
827         vec_st(p1, -2*stride, pix);
828         vec_st(p0, -1*stride, pix);
829         vec_st(q0, 0, pix);
830         vec_st(q1, stride, pix);
831     }
832 }
833
834 static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) {
835
836     register vec_u8 line0, line1, line2, line3, line4, line5;
837     if ((tc0[0] & tc0[1] & tc0[2] & tc0[3]) < 0)
838         return;
839     readAndTranspose16x6(pix-3, stride, line0, line1, line2, line3, line4, line5);
840     h264_loop_filter_luma_altivec(line0, line1, line2, line3, line4, line5, alpha, beta, tc0);
841     transpose4x16(line1, line2, line3, line4);
842     write16x4(pix-2, stride, line1, line2, line3, line4);
843 }
844
845 static av_always_inline
846 void weight_h264_W_altivec(uint8_t *block, int stride, int height,
847                            int log2_denom, int weight, int offset, int w)
848 {
849     int y, aligned;
850     vec_u8 vblock;
851     vec_s16 vtemp, vweight, voffset, v0, v1;
852     vec_u16 vlog2_denom;
853     DECLARE_ALIGNED(16, int32_t, temp)[4];
854     LOAD_ZERO;
855
856     offset <<= log2_denom;
857     if(log2_denom) offset += 1<<(log2_denom-1);
858     temp[0] = log2_denom;
859     temp[1] = weight;
860     temp[2] = offset;
861
862     vtemp = (vec_s16)vec_ld(0, temp);
863     vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
864     vweight = vec_splat(vtemp, 3);
865     voffset = vec_splat(vtemp, 5);
866     aligned = !((unsigned long)block & 0xf);
867
868     for (y = 0; y < height; y++) {
869         vblock = vec_ld(0, block);
870
871         v0 = (vec_s16)vec_mergeh(zero_u8v, vblock);
872         v1 = (vec_s16)vec_mergel(zero_u8v, vblock);
873
874         if (w == 16 || aligned) {
875             v0 = vec_mladd(v0, vweight, zero_s16v);
876             v0 = vec_adds(v0, voffset);
877             v0 = vec_sra(v0, vlog2_denom);
878         }
879         if (w == 16 || !aligned) {
880             v1 = vec_mladd(v1, vweight, zero_s16v);
881             v1 = vec_adds(v1, voffset);
882             v1 = vec_sra(v1, vlog2_denom);
883         }
884         vblock = vec_packsu(v0, v1);
885         vec_st(vblock, 0, block);
886
887         block += stride;
888     }
889 }
890
891 static av_always_inline
892 void biweight_h264_W_altivec(uint8_t *dst, uint8_t *src, int stride, int height,
893                              int log2_denom, int weightd, int weights, int offset, int w)
894 {
895     int y, dst_aligned, src_aligned;
896     vec_u8 vsrc, vdst;
897     vec_s16 vtemp, vweights, vweightd, voffset, v0, v1, v2, v3;
898     vec_u16 vlog2_denom;
899     DECLARE_ALIGNED(16, int32_t, temp)[4];
900     LOAD_ZERO;
901
902     offset = ((offset + 1) | 1) << log2_denom;
903     temp[0] = log2_denom+1;
904     temp[1] = weights;
905     temp[2] = weightd;
906     temp[3] = offset;
907
908     vtemp = (vec_s16)vec_ld(0, temp);
909     vlog2_denom = (vec_u16)vec_splat(vtemp, 1);
910     vweights = vec_splat(vtemp, 3);
911     vweightd = vec_splat(vtemp, 5);
912     voffset = vec_splat(vtemp, 7);
913     dst_aligned = !((unsigned long)dst & 0xf);
914     src_aligned = !((unsigned long)src & 0xf);
915
916     for (y = 0; y < height; y++) {
917         vdst = vec_ld(0, dst);
918         vsrc = vec_ld(0, src);
919
920         v0 = (vec_s16)vec_mergeh(zero_u8v, vdst);
921         v1 = (vec_s16)vec_mergel(zero_u8v, vdst);
922         v2 = (vec_s16)vec_mergeh(zero_u8v, vsrc);
923         v3 = (vec_s16)vec_mergel(zero_u8v, vsrc);
924
925         if (w == 8) {
926             if (src_aligned)
927                 v3 = v2;
928             else
929                 v2 = v3;
930         }
931
932         if (w == 16 || dst_aligned) {
933             v0 = vec_mladd(v0, vweightd, zero_s16v);
934             v2 = vec_mladd(v2, vweights, zero_s16v);
935
936             v0 = vec_adds(v0, voffset);
937             v0 = vec_adds(v0, v2);
938             v0 = vec_sra(v0, vlog2_denom);
939         }
940         if (w == 16 || !dst_aligned) {
941             v1 = vec_mladd(v1, vweightd, zero_s16v);
942             v3 = vec_mladd(v3, vweights, zero_s16v);
943
944             v1 = vec_adds(v1, voffset);
945             v1 = vec_adds(v1, v3);
946             v1 = vec_sra(v1, vlog2_denom);
947         }
948         vdst = vec_packsu(v0, v1);
949         vec_st(vdst, 0, dst);
950
951         dst += stride;
952         src += stride;
953     }
954 }
955
956 #define H264_WEIGHT(W) \
957 static void ff_weight_h264_pixels ## W ## _altivec(uint8_t *block, int stride, int height, \
958                                                    int log2_denom, int weight, int offset){ \
959     weight_h264_W_altivec(block, stride, height, log2_denom, weight, offset, W); \
960 }\
961 static void ff_biweight_h264_pixels ## W ## _altivec(uint8_t *dst, uint8_t *src, int stride, int height, \
962                                                      int log2_denom, int weightd, int weights, int offset){ \
963     biweight_h264_W_altivec(dst, src, stride, height, log2_denom, weightd, weights, offset, W); \
964 }
965
966 H264_WEIGHT(16)
967 H264_WEIGHT( 8)
968
969 void ff_dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
970     const int high_bit_depth = avctx->bits_per_raw_sample > 8;
971
972     if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
973     if (!high_bit_depth) {
974         c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
975         c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
976
977 #define dspfunc(PFX, IDX, NUM) \
978         c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_altivec; \
979         c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_altivec; \
980         c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_altivec; \
981         c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_altivec; \
982         c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_altivec; \
983         c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_altivec; \
984         c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_altivec; \
985         c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_altivec; \
986         c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_altivec; \
987         c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_altivec; \
988         c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_altivec; \
989         c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_altivec; \
990         c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_altivec; \
991         c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_altivec; \
992         c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_altivec; \
993         c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_altivec
994
995         dspfunc(put_h264_qpel, 0, 16);
996         dspfunc(avg_h264_qpel, 0, 16);
997 #undef dspfunc
998     }
999     }
1000 }
1001
1002 void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, const int chroma_format_idc)
1003 {
1004     if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
1005     if (bit_depth == 8) {
1006         c->h264_idct_add = ff_h264_idct_add_altivec;
1007         if (chroma_format_idc == 1)
1008             c->h264_idct_add8 = ff_h264_idct_add8_altivec;
1009         c->h264_idct_add16 = ff_h264_idct_add16_altivec;
1010         c->h264_idct_add16intra = ff_h264_idct_add16intra_altivec;
1011         c->h264_idct_dc_add= h264_idct_dc_add_altivec;
1012         c->h264_idct8_dc_add = ff_h264_idct8_dc_add_altivec;
1013         c->h264_idct8_add = ff_h264_idct8_add_altivec;
1014         c->h264_idct8_add4 = ff_h264_idct8_add4_altivec;
1015         c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_altivec;
1016         c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_altivec;
1017
1018         c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels16_altivec;
1019         c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels8_altivec;
1020         c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels16_altivec;
1021         c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels8_altivec;
1022     }
1023     }
1024 }