FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/x86/mpegvideoencdsp_init.c
Date: 2022-12-06 04:36:11
Exec Total Coverage
Lines: 41 50 82.0%
Functions: 2 2 100.0%
Branches: 20 30 66.7%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "libavutil/attributes.h"
20 #include "libavutil/avassert.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavcodec/avcodec.h"
24 #include "libavcodec/mpegvideoencdsp.h"
25
26 int ff_pix_sum16_sse2(const uint8_t *pix, int line_size);
27 int ff_pix_sum16_xop(const uint8_t *pix, int line_size);
28 int ff_pix_norm1_sse2(const uint8_t *pix, int line_size);
29
30 #if HAVE_INLINE_ASM
31
32 #define PHADDD(a, t) \
33 "movq " #a ", " #t " \n\t" \
34 "psrlq $32, " #a " \n\t" \
35 "paddd " #t ", " #a " \n\t"
36
37 /*
38 * pmulhw: dst[0 - 15] = (src[0 - 15] * dst[0 - 15])[16 - 31]
39 * pmulhrw: dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x8000)[16 - 31]
40 * pmulhrsw: dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x4000)[15 - 30]
41 */
42 #define PMULHRW(x, y, s, o) \
43 "pmulhw " #s ", " #x " \n\t" \
44 "pmulhw " #s ", " #y " \n\t" \
45 "paddw " #o ", " #x " \n\t" \
46 "paddw " #o ", " #y " \n\t" \
47 "psraw $1, " #x " \n\t" \
48 "psraw $1, " #y " \n\t"
49 #define DEF(x) x ## _mmx
50 #define SET_RND MOVQ_WONE
51 #define SCALE_OFFSET 1
52
53 #include "mpegvideoenc_qns_template.c"
54
55 #undef DEF
56 #undef SET_RND
57 #undef SCALE_OFFSET
58 #undef PMULHRW
59
60 #define DEF(x) x ## _3dnow
61 #define SET_RND(x)
62 #define SCALE_OFFSET 0
63 #define PMULHRW(x, y, s, o) \
64 "pmulhrw " #s ", " #x " \n\t" \
65 "pmulhrw " #s ", " #y " \n\t"
66
67 #include "mpegvideoenc_qns_template.c"
68
69 #undef DEF
70 #undef SET_RND
71 #undef SCALE_OFFSET
72 #undef PMULHRW
73
74 #if HAVE_SSSE3_INLINE
75 #undef PHADDD
76 #define DEF(x) x ## _ssse3
77 #define SET_RND(x)
78 #define SCALE_OFFSET -1
79
80 #define PHADDD(a, t) \
81 "pshufw $0x0E, " #a ", " #t " \n\t" \
82 /* faster than phaddd on core2 */ \
83 "paddd " #t ", " #a " \n\t"
84
85 #define PMULHRW(x, y, s, o) \
86 "pmulhrsw " #s ", " #x " \n\t" \
87 "pmulhrsw " #s ", " #y " \n\t"
88
89 #include "mpegvideoenc_qns_template.c"
90
91 #undef DEF
92 #undef SET_RND
93 #undef SCALE_OFFSET
94 #undef PMULHRW
95 #undef PHADDD
96 #endif /* HAVE_SSSE3_INLINE */
97
98 /* Draw the edges of width 'w' of an image of size width, height
99 * this MMX version can only handle w == 8 || w == 16. */
100 150 static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
101 int w, int h, int sides)
102 {
103 uint8_t *ptr, *last_line;
104 int i;
105
106 150 last_line = buf + (height - 1) * wrap;
107 /* left and right */
108 150 ptr = buf;
109
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150 if (w == 8) {
110 100 __asm__ volatile (
111 "1: \n\t"
112 "movd (%0), %%mm0 \n\t"
113 "punpcklbw %%mm0, %%mm0 \n\t"
114 "punpcklwd %%mm0, %%mm0 \n\t"
115 "punpckldq %%mm0, %%mm0 \n\t"
116 "movq %%mm0, -8(%0) \n\t"
117 "movq -8(%0, %2), %%mm1 \n\t"
118 "punpckhbw %%mm1, %%mm1 \n\t"
119 "punpckhwd %%mm1, %%mm1 \n\t"
120 "punpckhdq %%mm1, %%mm1 \n\t"
121 "movq %%mm1, (%0, %2) \n\t"
122 "add %1, %0 \n\t"
123 "cmp %3, %0 \n\t"
124 "jb 1b \n\t"
125 : "+r" (ptr)
126 100 : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
127 100 "r" (ptr + wrap * height));
128
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50 } else if (w == 16) {
129 50 __asm__ volatile (
130 "1: \n\t"
131 "movd (%0), %%mm0 \n\t"
132 "punpcklbw %%mm0, %%mm0 \n\t"
133 "punpcklwd %%mm0, %%mm0 \n\t"
134 "punpckldq %%mm0, %%mm0 \n\t"
135 "movq %%mm0, -8(%0) \n\t"
136 "movq %%mm0, -16(%0) \n\t"
137 "movq -8(%0, %2), %%mm1 \n\t"
138 "punpckhbw %%mm1, %%mm1 \n\t"
139 "punpckhwd %%mm1, %%mm1 \n\t"
140 "punpckhdq %%mm1, %%mm1 \n\t"
141 "movq %%mm1, (%0, %2) \n\t"
142 "movq %%mm1, 8(%0, %2) \n\t"
143 "add %1, %0 \n\t"
144 "cmp %3, %0 \n\t"
145 "jb 1b \n\t"
146 : "+r"(ptr)
147 50 : "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height)
148 );
149 } else {
150 av_assert1(w == 4);
151 __asm__ volatile (
152 "1: \n\t"
153 "movd (%0), %%mm0 \n\t"
154 "punpcklbw %%mm0, %%mm0 \n\t"
155 "punpcklwd %%mm0, %%mm0 \n\t"
156 "movd %%mm0, -4(%0) \n\t"
157 "movd -4(%0, %2), %%mm1 \n\t"
158 "punpcklbw %%mm1, %%mm1 \n\t"
159 "punpckhwd %%mm1, %%mm1 \n\t"
160 "punpckhdq %%mm1, %%mm1 \n\t"
161 "movd %%mm1, (%0, %2) \n\t"
162 "add %1, %0 \n\t"
163 "cmp %3, %0 \n\t"
164 "jb 1b \n\t"
165 : "+r" (ptr)
166 : "r" ((x86_reg) wrap), "r" ((x86_reg) width),
167 "r" (ptr + wrap * height));
168 }
169
170 /* top and bottom (and hopefully also the corners) */
171
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150 if (sides & EDGE_TOP) {
172
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550 for (i = 0; i < h; i += 4) {
173 400 ptr = buf - (i + 1) * wrap - w;
174 400 __asm__ volatile (
175 "1: \n\t"
176 "movq (%1, %0), %%mm0 \n\t"
177 "movq %%mm0, (%0) \n\t"
178 "movq %%mm0, (%0, %2) \n\t"
179 "movq %%mm0, (%0, %2, 2) \n\t"
180 "movq %%mm0, (%0, %3) \n\t"
181 "add $8, %0 \n\t"
182 "cmp %4, %0 \n\t"
183 "jb 1b \n\t"
184 : "+r" (ptr)
185 400 : "r" ((x86_reg) buf - (x86_reg) ptr - w),
186 400 "r" ((x86_reg) - wrap), "r" ((x86_reg) - wrap * 3),
187 400 "r" (ptr + width + 2 * w));
188 }
189 }
190
191
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150 if (sides & EDGE_BOTTOM) {
192
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550 for (i = 0; i < h; i += 4) {
193 400 ptr = last_line + (i + 1) * wrap - w;
194 400 __asm__ volatile (
195 "1: \n\t"
196 "movq (%1, %0), %%mm0 \n\t"
197 "movq %%mm0, (%0) \n\t"
198 "movq %%mm0, (%0, %2) \n\t"
199 "movq %%mm0, (%0, %2, 2) \n\t"
200 "movq %%mm0, (%0, %3) \n\t"
201 "add $8, %0 \n\t"
202 "cmp %4, %0 \n\t"
203 "jb 1b \n\t"
204 : "+r" (ptr)
205 400 : "r" ((x86_reg) last_line - (x86_reg) ptr - w),
206 400 "r" ((x86_reg) wrap), "r" ((x86_reg) wrap * 3),
207 400 "r" (ptr + width + 2 * w));
208 }
209 }
210 150 }
211
212 #endif /* HAVE_INLINE_ASM */
213
214 352 av_cold void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c,
215 AVCodecContext *avctx)
216 {
217 352 int cpu_flags = av_get_cpu_flags();
218
219
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352 if (EXTERNAL_SSE2(cpu_flags)) {
220 1 c->pix_sum = ff_pix_sum16_sse2;
221 1 c->pix_norm1 = ff_pix_norm1_sse2;
222 }
223
224
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352 if (EXTERNAL_XOP(cpu_flags)) {
225 c->pix_sum = ff_pix_sum16_xop;
226 }
227
228 #if HAVE_INLINE_ASM
229
230
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352 if (INLINE_MMX(cpu_flags)) {
231
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1 if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
232 c->try_8x8basis = try_8x8basis_mmx;
233 }
234 1 c->add_8x8basis = add_8x8basis_mmx;
235
236
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1 if (avctx->bits_per_raw_sample <= 8) {
237 1 c->draw_edges = draw_edges_mmx;
238 }
239 }
240
241
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352 if (INLINE_AMD3DNOW(cpu_flags)) {
242 if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
243 c->try_8x8basis = try_8x8basis_3dnow;
244 }
245 c->add_8x8basis = add_8x8basis_3dnow;
246 }
247
248 #if HAVE_SSSE3_INLINE
249
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352 if (INLINE_SSSE3(cpu_flags)) {
250
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1 if (!(avctx->flags & AV_CODEC_FLAG_BITEXACT)) {
251 c->try_8x8basis = try_8x8basis_ssse3;
252 }
253 1 c->add_8x8basis = add_8x8basis_ssse3;
254 }
255 #endif /* HAVE_SSSE3_INLINE */
256
257 #endif /* HAVE_INLINE_ASM */
258 352 }
259