1 /*
2 * Copyright (c) 2005 Zoltan Hidvegi <hzoli -a- hzoli -d- com>,
3 * Loren Merritt
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * MMX optimized version of (put|avg)_h264_chroma_mc8.
24 * H264_CHROMA_MC8_TMPL must be defined to the desired function name
25 * H264_CHROMA_OP must be defined to empty for put and pavgb/pavgusb for avg
26 * H264_CHROMA_MC8_MV0 must be defined to a (put|avg)_pixels8 function
27 */
H264_CHROMA_MC8_TMPL(uint8_t * dst,uint8_t * src,int stride,int h,int x,int y,int rnd)28 static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y, int rnd)
29 {
30 const uint64_t *rnd_reg;
31 DECLARE_ALIGNED_8(uint64_t, AA);
32 DECLARE_ALIGNED_8(uint64_t, DD);
33 int i;
34
35 if(y==0 && x==0) {
36 /* no filter needed */
37 H264_CHROMA_MC8_MV0(dst, src, stride, h);
38 return;
39 }
40
41 assert(x<8 && y<8 && x>=0 && y>=0);
42
43 if(y==0 || x==0)
44 {
45 /* 1 dimensional filter only */
46 const int dxy = x ? 1 : stride;
47
48 rnd_reg = rnd ? &ff_pw_4 : &ff_pw_3;
49
50 asm volatile(
51 "movd %0, %%mm5\n\t"
52 "movq %1, %%mm4\n\t"
53 "movq %2, %%mm6\n\t" /* mm6 = rnd */
54 "punpcklwd %%mm5, %%mm5\n\t"
55 "punpckldq %%mm5, %%mm5\n\t" /* mm5 = B = x */
56 "pxor %%mm7, %%mm7\n\t"
57 "psubw %%mm5, %%mm4\n\t" /* mm4 = A = 8-x */
58 :: "rm"(x+y), "m"(ff_pw_8), "m"(*rnd_reg));
59
60 for(i=0; i<h; i++) {
61 asm volatile(
62 /* mm0 = src[0..7], mm1 = src[1..8] */
63 "movq %0, %%mm0\n\t"
64 "movq %1, %%mm2\n\t"
65 :: "m"(src[0]), "m"(src[dxy]));
66
67 asm volatile(
68 /* [mm0,mm1] = A * src[0..7] */
69 /* [mm2,mm3] = B * src[1..8] */
70 "movq %%mm0, %%mm1\n\t"
71 "movq %%mm2, %%mm3\n\t"
72 "punpcklbw %%mm7, %%mm0\n\t"
73 "punpckhbw %%mm7, %%mm1\n\t"
74 "punpcklbw %%mm7, %%mm2\n\t"
75 "punpckhbw %%mm7, %%mm3\n\t"
76 "pmullw %%mm4, %%mm0\n\t"
77 "pmullw %%mm4, %%mm1\n\t"
78 "pmullw %%mm5, %%mm2\n\t"
79 "pmullw %%mm5, %%mm3\n\t"
80
81 /* dst[0..7] = (A * src[0..7] + B * src[1..8] + 4) >> 3 */
82 "paddw %%mm6, %%mm0\n\t"
83 "paddw %%mm6, %%mm1\n\t"
84 "paddw %%mm2, %%mm0\n\t"
85 "paddw %%mm3, %%mm1\n\t"
86 "psrlw $3, %%mm0\n\t"
87 "psrlw $3, %%mm1\n\t"
88 "packuswb %%mm1, %%mm0\n\t"
89 H264_CHROMA_OP(%0, %%mm0)
90 "movq %%mm0, %0\n\t"
91 : "=m" (dst[0]));
92
93 src += stride;
94 dst += stride;
95 }
96 return;
97 }
98
99 /* general case, bilinear */
100 rnd_reg = rnd ? &ff_pw_32.a : &ff_pw_28.a;
101 asm volatile("movd %2, %%mm4\n\t"
102 "movd %3, %%mm6\n\t"
103 "punpcklwd %%mm4, %%mm4\n\t"
104 "punpcklwd %%mm6, %%mm6\n\t"
105 "punpckldq %%mm4, %%mm4\n\t" /* mm4 = x words */
106 "punpckldq %%mm6, %%mm6\n\t" /* mm6 = y words */
107 "movq %%mm4, %%mm5\n\t"
108 "pmullw %%mm6, %%mm4\n\t" /* mm4 = x * y */
109 "psllw $3, %%mm5\n\t"
110 "psllw $3, %%mm6\n\t"
111 "movq %%mm5, %%mm7\n\t"
112 "paddw %%mm6, %%mm7\n\t"
113 "movq %%mm4, %1\n\t" /* DD = x * y */
114 "psubw %%mm4, %%mm5\n\t" /* mm5 = B = 8x - xy */
115 "psubw %%mm4, %%mm6\n\t" /* mm6 = C = 8y - xy */
116 "paddw %4, %%mm4\n\t"
117 "psubw %%mm7, %%mm4\n\t" /* mm4 = A = xy - (8x+8y) + 64 */
118 "pxor %%mm7, %%mm7\n\t"
119 "movq %%mm4, %0\n\t"
120 : "=m" (AA), "=m" (DD) : "rm" (x), "rm" (y), "m" (ff_pw_64));
121
122 asm volatile(
123 /* mm0 = src[0..7], mm1 = src[1..8] */
124 "movq %0, %%mm0\n\t"
125 "movq %1, %%mm1\n\t"
126 : : "m" (src[0]), "m" (src[1]));
127
128 for(i=0; i<h; i++) {
129 src += stride;
130
131 asm volatile(
132 /* mm2 = A * src[0..3] + B * src[1..4] */
133 /* mm3 = A * src[4..7] + B * src[5..8] */
134 "movq %%mm0, %%mm2\n\t"
135 "movq %%mm1, %%mm3\n\t"
136 "punpckhbw %%mm7, %%mm0\n\t"
137 "punpcklbw %%mm7, %%mm1\n\t"
138 "punpcklbw %%mm7, %%mm2\n\t"
139 "punpckhbw %%mm7, %%mm3\n\t"
140 "pmullw %0, %%mm0\n\t"
141 "pmullw %0, %%mm2\n\t"
142 "pmullw %%mm5, %%mm1\n\t"
143 "pmullw %%mm5, %%mm3\n\t"
144 "paddw %%mm1, %%mm2\n\t"
145 "paddw %%mm0, %%mm3\n\t"
146 : : "m" (AA));
147
148 asm volatile(
149 /* [mm2,mm3] += C * src[0..7] */
150 "movq %0, %%mm0\n\t"
151 "movq %%mm0, %%mm1\n\t"
152 "punpcklbw %%mm7, %%mm0\n\t"
153 "punpckhbw %%mm7, %%mm1\n\t"
154 "pmullw %%mm6, %%mm0\n\t"
155 "pmullw %%mm6, %%mm1\n\t"
156 "paddw %%mm0, %%mm2\n\t"
157 "paddw %%mm1, %%mm3\n\t"
158 : : "m" (src[0]));
159
160 asm volatile(
161 /* [mm2,mm3] += D * src[1..8] */
162 "movq %1, %%mm1\n\t"
163 "movq %%mm1, %%mm0\n\t"
164 "movq %%mm1, %%mm4\n\t"
165 "punpcklbw %%mm7, %%mm0\n\t"
166 "punpckhbw %%mm7, %%mm4\n\t"
167 "pmullw %2, %%mm0\n\t"
168 "pmullw %2, %%mm4\n\t"
169 "paddw %%mm0, %%mm2\n\t"
170 "paddw %%mm4, %%mm3\n\t"
171 "movq %0, %%mm0\n\t"
172 : : "m" (src[0]), "m" (src[1]), "m" (DD));
173
174 asm volatile(
175 /* dst[0..7] = ([mm2,mm3] + 32) >> 6 */
176 "paddw %1, %%mm2\n\t"
177 "paddw %1, %%mm3\n\t"
178 "psrlw $6, %%mm2\n\t"
179 "psrlw $6, %%mm3\n\t"
180 "packuswb %%mm3, %%mm2\n\t"
181 H264_CHROMA_OP(%0, %%mm2)
182 "movq %%mm2, %0\n\t"
183 : "=m" (dst[0]) : "m" (*rnd_reg));
184 dst+= stride;
185 }
186 }
187
H264_CHROMA_MC4_TMPL(uint8_t * dst,uint8_t * src,int stride,int h,int x,int y)188 static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 4*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
189 {
190 asm volatile(
191 "pxor %%mm7, %%mm7 \n\t"
192 "movd %5, %%mm2 \n\t"
193 "movd %6, %%mm3 \n\t"
194 "movq "MANGLE(ff_pw_8)", %%mm4\n\t"
195 "movq "MANGLE(ff_pw_8)", %%mm5\n\t"
196 "punpcklwd %%mm2, %%mm2 \n\t"
197 "punpcklwd %%mm3, %%mm3 \n\t"
198 "punpcklwd %%mm2, %%mm2 \n\t"
199 "punpcklwd %%mm3, %%mm3 \n\t"
200 "psubw %%mm2, %%mm4 \n\t"
201 "psubw %%mm3, %%mm5 \n\t"
202
203 "movd (%1), %%mm0 \n\t"
204 "movd 1(%1), %%mm6 \n\t"
205 "add %3, %1 \n\t"
206 "punpcklbw %%mm7, %%mm0 \n\t"
207 "punpcklbw %%mm7, %%mm6 \n\t"
208 "pmullw %%mm4, %%mm0 \n\t"
209 "pmullw %%mm2, %%mm6 \n\t"
210 "paddw %%mm0, %%mm6 \n\t"
211
212 "1: \n\t"
213 "movd (%1), %%mm0 \n\t"
214 "movd 1(%1), %%mm1 \n\t"
215 "add %3, %1 \n\t"
216 "punpcklbw %%mm7, %%mm0 \n\t"
217 "punpcklbw %%mm7, %%mm1 \n\t"
218 "pmullw %%mm4, %%mm0 \n\t"
219 "pmullw %%mm2, %%mm1 \n\t"
220 "paddw %%mm0, %%mm1 \n\t"
221 "movq %%mm1, %%mm0 \n\t"
222 "pmullw %%mm5, %%mm6 \n\t"
223 "pmullw %%mm3, %%mm1 \n\t"
224 "paddw %4, %%mm6 \n\t"
225 "paddw %%mm6, %%mm1 \n\t"
226 "psrlw $6, %%mm1 \n\t"
227 "packuswb %%mm1, %%mm1 \n\t"
228 H264_CHROMA_OP4((%0), %%mm1, %%mm6)
229 "movd %%mm1, (%0) \n\t"
230 "add %3, %0 \n\t"
231 "movd (%1), %%mm6 \n\t"
232 "movd 1(%1), %%mm1 \n\t"
233 "add %3, %1 \n\t"
234 "punpcklbw %%mm7, %%mm6 \n\t"
235 "punpcklbw %%mm7, %%mm1 \n\t"
236 "pmullw %%mm4, %%mm6 \n\t"
237 "pmullw %%mm2, %%mm1 \n\t"
238 "paddw %%mm6, %%mm1 \n\t"
239 "movq %%mm1, %%mm6 \n\t"
240 "pmullw %%mm5, %%mm0 \n\t"
241 "pmullw %%mm3, %%mm1 \n\t"
242 "paddw %4, %%mm0 \n\t"
243 "paddw %%mm0, %%mm1 \n\t"
244 "psrlw $6, %%mm1 \n\t"
245 "packuswb %%mm1, %%mm1 \n\t"
246 H264_CHROMA_OP4((%0), %%mm1, %%mm0)
247 "movd %%mm1, (%0) \n\t"
248 "add %3, %0 \n\t"
249 "sub $2, %2 \n\t"
250 "jnz 1b \n\t"
251 : "+r"(dst), "+r"(src), "+r"(h)
252 : "r"((long)stride), "m"(ff_pw_32), "m"(x), "m"(y)
253 );
254 }
255
256 #ifdef H264_CHROMA_MC2_TMPL
H264_CHROMA_MC2_TMPL(uint8_t * dst,uint8_t * src,int stride,int h,int x,int y)257 static void H264_CHROMA_MC2_TMPL(uint8_t *dst/*align 2*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
258 {
259 int tmp = ((1<<16)-1)*x + 8;
260 int CD= tmp*y;
261 int AB= (tmp<<3) - CD;
262 asm volatile(
263 /* mm5 = {A,B,A,B} */
264 /* mm6 = {C,D,C,D} */
265 "movd %0, %%mm5\n\t"
266 "movd %1, %%mm6\n\t"
267 "punpckldq %%mm5, %%mm5\n\t"
268 "punpckldq %%mm6, %%mm6\n\t"
269 "pxor %%mm7, %%mm7\n\t"
270 /* mm0 = src[0,1,1,2] */
271 "movd %2, %%mm2\n\t"
272 "punpcklbw %%mm7, %%mm2\n\t"
273 "pshufw $0x94, %%mm2, %%mm2\n\t"
274 :: "r"(AB), "r"(CD), "m"(src[0]));
275
276
277 asm volatile(
278 "1:\n\t"
279 "add %4, %1\n\t"
280 /* mm1 = A * src[0,1] + B * src[1,2] */
281 "movq %%mm2, %%mm1\n\t"
282 "pmaddwd %%mm5, %%mm1\n\t"
283 /* mm0 = src[0,1,1,2] */
284 "movd (%1), %%mm0\n\t"
285 "punpcklbw %%mm7, %%mm0\n\t"
286 "pshufw $0x94, %%mm0, %%mm0\n\t"
287 /* mm1 += C * src[0,1] + D * src[1,2] */
288 "movq %%mm0, %%mm2\n\t"
289 "pmaddwd %%mm6, %%mm0\n\t"
290 "paddw %3, %%mm1\n\t"
291 "paddw %%mm0, %%mm1\n\t"
292 /* dst[0,1] = pack((mm1 + 32) >> 6) */
293 "psrlw $6, %%mm1\n\t"
294 "packssdw %%mm7, %%mm1\n\t"
295 "packuswb %%mm7, %%mm1\n\t"
296 H264_CHROMA_OP4((%0), %%mm1, %%mm3)
297 "movd %%mm1, %%esi\n\t"
298 "movw %%si, (%0)\n\t"
299 "add %4, %0\n\t"
300 "sub $1, %2\n\t"
301 "jnz 1b\n\t"
302 : "+r" (dst), "+r"(src), "+r"(h)
303 : "m" (ff_pw_32), "r"((long)stride)
304 : "%esi");
305
306 }
307 #endif
308
309