1 /*
2 * Copyright (C) 2002-2012 Michael Niedermayer
3 * Copyright (C) 2012 Ronald S. Bultje
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 #include "config.h"
23 #include "libavutil/attributes.h"
24 #include "libavutil/avassert.h"
25 #include "libavutil/common.h"
26 #include "libavutil/cpu.h"
27 #include "libavutil/mem.h"
28 #include "libavutil/x86/asm.h"
29 #include "libavutil/x86/cpu.h"
30 #include "libavcodec/videodsp.h"
31
32 #if HAVE_X86ASM
33 typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
34 const uint8_t *src, x86_reg src_stride,
35 x86_reg start_y, x86_reg end_y, x86_reg bh);
36 typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
37 const uint8_t *src, x86_reg src_stride,
38 x86_reg start_y, x86_reg end_y, x86_reg bh,
39 x86_reg w);
40
41 extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
42 extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
43 extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
44 extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
45 extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
46 extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
47 extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
48 extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
49 extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
50 extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
51 extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
52 extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
53 extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
54 extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
55 extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
56 extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
57 extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
58 extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
59 extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
60 extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
61 extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
62 extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
63 #if ARCH_X86_32
64 static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
65 &ff_emu_edge_vfix1_mmx, &ff_emu_edge_vfix2_mmx, &ff_emu_edge_vfix3_mmx,
66 &ff_emu_edge_vfix4_mmx, &ff_emu_edge_vfix5_mmx, &ff_emu_edge_vfix6_mmx,
67 &ff_emu_edge_vfix7_mmx, &ff_emu_edge_vfix8_mmx, &ff_emu_edge_vfix9_mmx,
68 &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
69 &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
70 &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
71 &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
72 &ff_emu_edge_vfix22_mmx
73 };
74 #endif
75 extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
76 extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
77 extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
78 extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
79 extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
80 extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
81 extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
82 extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
83 static emu_edge_vfix_func * const vfixtbl_sse[22] = {
84 ff_emu_edge_vfix1_mmx, ff_emu_edge_vfix2_mmx, ff_emu_edge_vfix3_mmx,
85 ff_emu_edge_vfix4_mmx, ff_emu_edge_vfix5_mmx, ff_emu_edge_vfix6_mmx,
86 ff_emu_edge_vfix7_mmx, ff_emu_edge_vfix8_mmx, ff_emu_edge_vfix9_mmx,
87 ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
88 ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
89 ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
90 ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
91 ff_emu_edge_vfix22_sse
92 };
93 extern emu_edge_vvar_func ff_emu_edge_vvar_sse;
94
95 typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
96 x86_reg start_x, x86_reg bh);
97 typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
98 x86_reg start_x, x86_reg n_words, x86_reg bh);
99
100 extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
101 extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
102 extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
103 extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
104 extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
105 extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
106 extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
107 extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
108 extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
109 extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
110 extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
111 #if ARCH_X86_32
112 static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
113 ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
114 ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
115 ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
116 ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
117 };
118 #endif
119 extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
120 extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
121 extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
122 extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
123 extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
124 static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
125 ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
126 ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
127 ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
128 ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
129 };
130 extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
131 #if HAVE_AVX2_EXTERNAL
132 extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
133 extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
134 extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
135 extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
136 extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
137 extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
138 extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
139 extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
140 static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
141 ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
142 ff_emu_edge_hfix8_avx2, ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
143 ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
144 ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
145 };
146 extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
147 #endif
148
emulated_edge_mc(uint8_t * dst,const uint8_t * src,ptrdiff_t dst_stride,ptrdiff_t src_stride,x86_reg block_w,x86_reg block_h,x86_reg src_x,x86_reg src_y,x86_reg w,x86_reg h,emu_edge_vfix_func * const * vfix_tbl,emu_edge_vvar_func * v_extend_var,emu_edge_hfix_func * const * hfix_tbl,emu_edge_hvar_func * h_extend_var)149 static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
150 ptrdiff_t dst_stride,
151 ptrdiff_t src_stride,
152 x86_reg block_w, x86_reg block_h,
153 x86_reg src_x, x86_reg src_y,
154 x86_reg w, x86_reg h,
155 emu_edge_vfix_func * const *vfix_tbl,
156 emu_edge_vvar_func *v_extend_var,
157 emu_edge_hfix_func * const *hfix_tbl,
158 emu_edge_hvar_func *h_extend_var)
159 {
160 x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
161
162 if (!w || !h)
163 return;
164
165 av_assert2(block_w <= FFABS(dst_stride));
166
167 if (src_y >= h) {
168 src -= src_y*src_stride;
169 src_y_add = h - 1;
170 src_y = h - 1;
171 } else if (src_y <= -block_h) {
172 src -= src_y*src_stride;
173 src_y_add = 1 - block_h;
174 src_y = 1 - block_h;
175 }
176 if (src_x >= w) {
177 src += w - 1 - src_x;
178 src_x = w - 1;
179 } else if (src_x <= -block_w) {
180 src += 1 - block_w - src_x;
181 src_x = 1 - block_w;
182 }
183
184 start_y = FFMAX(0, -src_y);
185 start_x = FFMAX(0, -src_x);
186 end_y = FFMIN(block_h, h-src_y);
187 end_x = FFMIN(block_w, w-src_x);
188 av_assert2(start_x < end_x && block_w > 0);
189 av_assert2(start_y < end_y && block_h > 0);
190
191 // fill in the to-be-copied part plus all above/below
192 src += (src_y_add + start_y) * src_stride + start_x;
193 w = end_x - start_x;
194 if (w <= 22) {
195 vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
196 start_y, end_y, block_h);
197 } else {
198 v_extend_var(dst + start_x, dst_stride, src, src_stride,
199 start_y, end_y, block_h, w);
200 }
201
202 // fill left
203 if (start_x) {
204 if (start_x <= 22) {
205 hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
206 } else {
207 h_extend_var(dst, dst_stride,
208 start_x, (start_x + 1) >> 1, block_h);
209 }
210 }
211
212 // fill right
213 p = block_w - end_x;
214 if (p) {
215 if (p <= 22) {
216 hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
217 -!(p & 1), block_h);
218 } else {
219 h_extend_var(dst + end_x - (p & 1), dst_stride,
220 -!(p & 1), (p + 1) >> 1, block_h);
221 }
222 }
223 }
224
225 #if ARCH_X86_32
emulated_edge_mc_mmx(uint8_t * buf,const uint8_t * src,ptrdiff_t buf_stride,ptrdiff_t src_stride,int block_w,int block_h,int src_x,int src_y,int w,int h)226 static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src,
227 ptrdiff_t buf_stride,
228 ptrdiff_t src_stride,
229 int block_w, int block_h,
230 int src_x, int src_y, int w, int h)
231 {
232 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
233 src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
234 hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
235 }
236
emulated_edge_mc_sse(uint8_t * buf,const uint8_t * src,ptrdiff_t buf_stride,ptrdiff_t src_stride,int block_w,int block_h,int src_x,int src_y,int w,int h)237 static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
238 ptrdiff_t buf_stride,
239 ptrdiff_t src_stride,
240 int block_w, int block_h,
241 int src_x, int src_y, int w, int h)
242 {
243 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
244 src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
245 hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
246 }
247 #endif
248
emulated_edge_mc_sse2(uint8_t * buf,const uint8_t * src,ptrdiff_t buf_stride,ptrdiff_t src_stride,int block_w,int block_h,int src_x,int src_y,int w,int h)249 static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src,
250 ptrdiff_t buf_stride,
251 ptrdiff_t src_stride,
252 int block_w, int block_h,
253 int src_x, int src_y, int w,
254 int h)
255 {
256 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
257 src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
258 hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
259 }
260
261 #if HAVE_AVX2_EXTERNAL
emulated_edge_mc_avx2(uint8_t * buf,const uint8_t * src,ptrdiff_t buf_stride,ptrdiff_t src_stride,int block_w,int block_h,int src_x,int src_y,int w,int h)262 static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src,
263 ptrdiff_t buf_stride,
264 ptrdiff_t src_stride,
265 int block_w, int block_h,
266 int src_x, int src_y, int w,
267 int h)
268 {
269 emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
270 src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
271 hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
272 }
273 #endif /* HAVE_AVX2_EXTERNAL */
274 #endif /* HAVE_X86ASM */
275
276 void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
277 void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);
278
ff_videodsp_init_x86(VideoDSPContext * ctx,int bpc)279 av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
280 {
281 #if HAVE_X86ASM
282 int cpu_flags = av_get_cpu_flags();
283
284 #if ARCH_X86_32
285 if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) {
286 ctx->emulated_edge_mc = emulated_edge_mc_mmx;
287 }
288 if (EXTERNAL_AMD3DNOW(cpu_flags)) {
289 ctx->prefetch = ff_prefetch_3dnow;
290 }
291 #endif /* ARCH_X86_32 */
292 if (EXTERNAL_MMXEXT(cpu_flags)) {
293 ctx->prefetch = ff_prefetch_mmxext;
294 }
295 #if ARCH_X86_32
296 if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) {
297 ctx->emulated_edge_mc = emulated_edge_mc_sse;
298 }
299 #endif /* ARCH_X86_32 */
300 if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
301 ctx->emulated_edge_mc = emulated_edge_mc_sse2;
302 }
303 #if HAVE_AVX2_EXTERNAL
304 if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
305 ctx->emulated_edge_mc = emulated_edge_mc_avx2;
306 }
307 #endif
308 #endif /* HAVE_X86ASM */
309 }
310