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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/mem.h" | |
22 | ||
23 | /* this code assume that stride % 16 == 0 */ | |
24 | ||
25 | #define CHROMA_MC8_ALTIVEC_CORE(BIAS1, BIAS2) \ | |
26 | vsrc2ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc2uc);\ | |
27 | vsrc3ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc3uc);\ | |
28 | \ | |
29 | psum = vec_mladd(vA, vsrc0ssH, BIAS1);\ | |
30 | psum = vec_mladd(vB, vsrc1ssH, psum);\ | |
31 | psum = vec_mladd(vC, vsrc2ssH, psum);\ | |
32 | psum = vec_mladd(vD, vsrc3ssH, psum);\ | |
33 | psum = BIAS2(psum);\ | |
34 | psum = vec_sr(psum, v6us);\ | |
35 | \ | |
36 | vdst = vec_ld(0, dst);\ | |
37 | ppsum = (vec_u8)vec_pack(psum, psum);\ | |
38 | vfdst = vec_perm(vdst, ppsum, fperm);\ | |
39 | \ | |
40 | OP_U8_ALTIVEC(fsum, vfdst, vdst);\ | |
41 | \ | |
42 | vec_st(fsum, 0, dst);\ | |
43 | \ | |
44 | vsrc0ssH = vsrc2ssH;\ | |
45 | vsrc1ssH = vsrc3ssH;\ | |
46 | \ | |
47 | dst += stride;\ | |
48 | src += stride; | |
49 | ||
50 | #define CHROMA_MC8_ALTIVEC_CORE_SIMPLE \ | |
51 | \ | |
52 | vsrc0ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc0uc);\ | |
53 | vsrc1ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc1uc);\ | |
54 | \ | |
55 | psum = vec_mladd(vA, vsrc0ssH, v32ss);\ | |
56 | psum = vec_mladd(vE, vsrc1ssH, psum);\ | |
57 | psum = vec_sr(psum, v6us);\ | |
58 | \ | |
59 | vdst = vec_ld(0, dst);\ | |
60 | ppsum = (vec_u8)vec_pack(psum, psum);\ | |
61 | vfdst = vec_perm(vdst, ppsum, fperm);\ | |
62 | \ | |
63 | OP_U8_ALTIVEC(fsum, vfdst, vdst);\ | |
64 | \ | |
65 | vec_st(fsum, 0, dst);\ | |
66 | \ | |
67 | dst += stride;\ | |
68 | src += stride; | |
69 | ||
70 | #define noop(a) a | |
71 | #define add28(a) vec_add(v28ss, a) | |
72 | ||
73 | #ifdef PREFIX_h264_chroma_mc8_altivec | |
74 | static void PREFIX_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, | |
75 | int stride, int h, int x, int y) { | |
76 | DECLARE_ALIGNED(16, signed int, ABCD)[4] = | |
77 | {((8 - x) * (8 - y)), | |
78 | (( x) * (8 - y)), | |
79 | ((8 - x) * ( y)), | |
80 | (( x) * ( y))}; | |
81 | register int i; | |
82 | vec_u8 fperm; | |
83 | const vec_s32 vABCD = vec_ld(0, ABCD); | |
84 | const vec_s16 vA = vec_splat((vec_s16)vABCD, 1); | |
85 | const vec_s16 vB = vec_splat((vec_s16)vABCD, 3); | |
86 | const vec_s16 vC = vec_splat((vec_s16)vABCD, 5); | |
87 | const vec_s16 vD = vec_splat((vec_s16)vABCD, 7); | |
88 | LOAD_ZERO; | |
89 | const vec_s16 v32ss = vec_sl(vec_splat_s16(1),vec_splat_u16(5)); | |
90 | const vec_u16 v6us = vec_splat_u16(6); | |
91 | register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1; | |
92 | register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0; | |
93 | ||
94 | vec_u8 vsrcAuc, av_uninit(vsrcBuc), vsrcperm0, vsrcperm1; | |
95 | vec_u8 vsrc0uc, vsrc1uc; | |
96 | vec_s16 vsrc0ssH, vsrc1ssH; | |
97 | vec_u8 vsrcCuc, vsrc2uc, vsrc3uc; | |
98 | vec_s16 vsrc2ssH, vsrc3ssH, psum; | |
99 | vec_u8 vdst, ppsum, vfdst, fsum; | |
100 | ||
101 | if (((unsigned long)dst) % 16 == 0) { | |
102 | fperm = (vec_u8){0x10, 0x11, 0x12, 0x13, | |
103 | 0x14, 0x15, 0x16, 0x17, | |
104 | 0x08, 0x09, 0x0A, 0x0B, | |
105 | 0x0C, 0x0D, 0x0E, 0x0F}; | |
106 | } else { | |
107 | fperm = (vec_u8){0x00, 0x01, 0x02, 0x03, | |
108 | 0x04, 0x05, 0x06, 0x07, | |
109 | 0x18, 0x19, 0x1A, 0x1B, | |
110 | 0x1C, 0x1D, 0x1E, 0x1F}; | |
111 | } | |
112 | ||
113 | vsrcAuc = vec_ld(0, src); | |
114 | ||
115 | if (loadSecond) | |
116 | vsrcBuc = vec_ld(16, src); | |
117 | vsrcperm0 = vec_lvsl(0, src); | |
118 | vsrcperm1 = vec_lvsl(1, src); | |
119 | ||
120 | vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0); | |
121 | if (reallyBadAlign) | |
122 | vsrc1uc = vsrcBuc; | |
123 | else | |
124 | vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1); | |
125 | ||
126 | vsrc0ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc0uc); | |
127 | vsrc1ssH = (vec_s16)vec_mergeh(zero_u8v,(vec_u8)vsrc1uc); | |
128 | ||
129 | if (ABCD[3]) { | |
130 | if (!loadSecond) {// -> !reallyBadAlign | |
131 | for (i = 0 ; i < h ; i++) { | |
132 | vsrcCuc = vec_ld(stride + 0, src); | |
133 | vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0); | |
134 | vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1); | |
135 | ||
136 | CHROMA_MC8_ALTIVEC_CORE(v32ss, noop) | |
137 | } | |
138 | } else { | |
139 | vec_u8 vsrcDuc; | |
140 | for (i = 0 ; i < h ; i++) { | |
141 | vsrcCuc = vec_ld(stride + 0, src); | |
142 | vsrcDuc = vec_ld(stride + 16, src); | |
143 | vsrc2uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0); | |
144 | if (reallyBadAlign) | |
145 | vsrc3uc = vsrcDuc; | |
146 | else | |
147 | vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1); | |
148 | ||
149 | CHROMA_MC8_ALTIVEC_CORE(v32ss, noop) | |
150 | } | |
151 | } | |
152 | } else { | |
153 | const vec_s16 vE = vec_add(vB, vC); | |
154 | if (ABCD[2]) { // x == 0 B == 0 | |
155 | if (!loadSecond) {// -> !reallyBadAlign | |
156 | for (i = 0 ; i < h ; i++) { | |
157 | vsrcCuc = vec_ld(stride + 0, src); | |
158 | vsrc1uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0); | |
159 | CHROMA_MC8_ALTIVEC_CORE_SIMPLE | |
160 | ||
161 | vsrc0uc = vsrc1uc; | |
162 | } | |
163 | } else { | |
164 | vec_u8 vsrcDuc; | |
165 | for (i = 0 ; i < h ; i++) { | |
166 | vsrcCuc = vec_ld(stride + 0, src); | |
167 | vsrcDuc = vec_ld(stride + 15, src); | |
168 | vsrc1uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0); | |
169 | CHROMA_MC8_ALTIVEC_CORE_SIMPLE | |
170 | ||
171 | vsrc0uc = vsrc1uc; | |
172 | } | |
173 | } | |
174 | } else { // y == 0 C == 0 | |
175 | if (!loadSecond) {// -> !reallyBadAlign | |
176 | for (i = 0 ; i < h ; i++) { | |
177 | vsrcCuc = vec_ld(0, src); | |
178 | vsrc0uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0); | |
179 | vsrc1uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1); | |
180 | ||
181 | CHROMA_MC8_ALTIVEC_CORE_SIMPLE | |
182 | } | |
183 | } else { | |
184 | vec_u8 vsrcDuc; | |
185 | for (i = 0 ; i < h ; i++) { | |
186 | vsrcCuc = vec_ld(0, src); | |
187 | vsrcDuc = vec_ld(15, src); | |
188 | vsrc0uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0); | |
189 | if (reallyBadAlign) | |
190 | vsrc1uc = vsrcDuc; | |
191 | else | |
192 | vsrc1uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1); | |
193 | ||
194 | CHROMA_MC8_ALTIVEC_CORE_SIMPLE | |
195 | } | |
196 | } | |
197 | } | |
198 | } | |
199 | } | |
200 | #endif | |
201 | ||
202 | /* this code assume that stride % 16 == 0 */ | |
203 | #ifdef PREFIX_no_rnd_vc1_chroma_mc8_altivec | |
204 | static void PREFIX_no_rnd_vc1_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) { | |
205 | DECLARE_ALIGNED(16, signed int, ABCD)[4] = | |
206 | {((8 - x) * (8 - y)), | |
207 | (( x) * (8 - y)), | |
208 | ((8 - x) * ( y)), | |
209 | (( x) * ( y))}; | |
210 | register int i; | |
211 | vec_u8 fperm; | |
212 | const vec_s32 vABCD = vec_ld(0, ABCD); | |
213 | const vec_s16 vA = vec_splat((vec_s16)vABCD, 1); | |
214 | const vec_s16 vB = vec_splat((vec_s16)vABCD, 3); | |
215 | const vec_s16 vC = vec_splat((vec_s16)vABCD, 5); | |
216 | const vec_s16 vD = vec_splat((vec_s16)vABCD, 7); | |
217 | LOAD_ZERO; | |
218 | const vec_s16 v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4)); | |
219 | const vec_u16 v6us = vec_splat_u16(6); | |
220 | register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1; | |
221 | register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0; | |
222 | ||
223 | vec_u8 vsrcAuc, av_uninit(vsrcBuc), vsrcperm0, vsrcperm1; | |
224 | vec_u8 vsrc0uc, vsrc1uc; | |
225 | vec_s16 vsrc0ssH, vsrc1ssH; | |
226 | vec_u8 vsrcCuc, vsrc2uc, vsrc3uc; | |
227 | vec_s16 vsrc2ssH, vsrc3ssH, psum; | |
228 | vec_u8 vdst, ppsum, vfdst, fsum; | |
229 | ||
230 | if (((unsigned long)dst) % 16 == 0) { | |
231 | fperm = (vec_u8){0x10, 0x11, 0x12, 0x13, | |
232 | 0x14, 0x15, 0x16, 0x17, | |
233 | 0x08, 0x09, 0x0A, 0x0B, | |
234 | 0x0C, 0x0D, 0x0E, 0x0F}; | |
235 | } else { | |
236 | fperm = (vec_u8){0x00, 0x01, 0x02, 0x03, | |
237 | 0x04, 0x05, 0x06, 0x07, | |
238 | 0x18, 0x19, 0x1A, 0x1B, | |
239 | 0x1C, 0x1D, 0x1E, 0x1F}; | |
240 | } | |
241 | ||
242 | vsrcAuc = vec_ld(0, src); | |
243 | ||
244 | if (loadSecond) | |
245 | vsrcBuc = vec_ld(16, src); | |
246 | vsrcperm0 = vec_lvsl(0, src); | |
247 | vsrcperm1 = vec_lvsl(1, src); | |
248 | ||
249 | vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0); | |
250 | if (reallyBadAlign) | |
251 | vsrc1uc = vsrcBuc; | |
252 | else | |
253 | vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1); | |
254 | ||
255 | vsrc0ssH = (vec_s16)vec_mergeh(zero_u8v, (vec_u8)vsrc0uc); | |
256 | vsrc1ssH = (vec_s16)vec_mergeh(zero_u8v, (vec_u8)vsrc1uc); | |
257 | ||
258 | if (!loadSecond) {// -> !reallyBadAlign | |
259 | for (i = 0 ; i < h ; i++) { | |
260 | ||
261 | ||
262 | vsrcCuc = vec_ld(stride + 0, src); | |
263 | ||
264 | vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0); | |
265 | vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1); | |
266 | ||
267 | CHROMA_MC8_ALTIVEC_CORE(vec_splat_s16(0), add28) | |
268 | } | |
269 | } else { | |
270 | vec_u8 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 | CHROMA_MC8_ALTIVEC_CORE(vec_splat_s16(0), add28) | |
282 | } | |
283 | } | |
284 | } | |
285 | #endif | |
286 | ||
287 | #undef noop | |
288 | #undef add28 | |
289 | #undef CHROMA_MC8_ALTIVEC_CORE |