FFmpeg
hpeldsp_init.c
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1 /*
2  * SIMD-optimized halfpel functions
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  *
22  * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
23  */
24 
25 #include "config_components.h"
26 
27 #include "libavutil/attributes.h"
28 #include "libavutil/cpu.h"
29 #include "libavutil/x86/cpu.h"
30 #include "libavcodec/avcodec.h"
31 #include "libavcodec/hpeldsp.h"
32 #include "libavcodec/pixels.h"
33 #include "fpel.h"
34 #include "hpeldsp.h"
35 
36 void ff_put_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
37  ptrdiff_t line_size, int h);
38 void ff_put_pixels16_x2_mmxext(uint8_t *block, const uint8_t *pixels,
39  ptrdiff_t line_size, int h);
40 void ff_put_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels,
41  ptrdiff_t line_size, int h);
42 void ff_avg_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels,
43  ptrdiff_t line_size, int h);
44 void ff_put_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels,
45  ptrdiff_t line_size, int h);
46 void ff_avg_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels,
47  ptrdiff_t line_size, int h);
48 void ff_put_no_rnd_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
49  ptrdiff_t line_size, int h);
50 void ff_put_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
51  ptrdiff_t line_size, int h);
52 void ff_put_no_rnd_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
53  ptrdiff_t line_size, int h);
54 void ff_avg_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
55  ptrdiff_t line_size, int h);
56 void ff_avg_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
57  ptrdiff_t line_size, int h);
58 void ff_avg_approx_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
59  ptrdiff_t line_size, int h);
60 
61 #define avg_pixels16_mmx ff_avg_pixels16_mmx
62 #define put_pixels8_mmx ff_put_pixels8_mmx
63 #define put_pixels16_mmx ff_put_pixels16_mmx
64 #define put_pixels8_xy2_mmx ff_put_pixels8_xy2_mmx
65 #define avg_no_rnd_pixels16_mmx ff_avg_pixels16_mmx
66 #define put_no_rnd_pixels8_mmx ff_put_pixels8_mmx
67 #define put_no_rnd_pixels16_mmx ff_put_pixels16_mmx
68 
69 #if HAVE_INLINE_ASM
70 
71 /***********************************/
72 /* MMX no rounding */
73 #define DEF(x, y) x ## _no_rnd_ ## y ## _mmx
74 #define SET_RND MOVQ_WONE
75 #define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX_NO_RND(a, b, c, d, e, f)
76 #define PAVGB(a, b, c, e) PAVGB_MMX_NO_RND(a, b, c, e)
77 #define STATIC static
78 
79 #include "rnd_template.c"
80 #include "hpeldsp_rnd_template.c"
81 
82 #undef DEF
83 #undef SET_RND
84 #undef PAVGBP
85 #undef PAVGB
86 #undef STATIC
87 
88 #if HAVE_MMX
89 CALL_2X_PIXELS(avg_no_rnd_pixels16_y2_mmx, avg_no_rnd_pixels8_y2_mmx, 8)
90 CALL_2X_PIXELS(put_no_rnd_pixels16_y2_mmx, put_no_rnd_pixels8_y2_mmx, 8)
91 
92 CALL_2X_PIXELS(avg_no_rnd_pixels16_xy2_mmx, avg_no_rnd_pixels8_xy2_mmx, 8)
93 CALL_2X_PIXELS(put_no_rnd_pixels16_xy2_mmx, put_no_rnd_pixels8_xy2_mmx, 8)
94 #endif
95 
96 /***********************************/
97 /* MMX rounding */
98 
99 #define SET_RND MOVQ_WTWO
100 #define DEF(x, y) ff_ ## x ## _ ## y ## _mmx
101 #define STATIC
102 #define NO_AVG
103 
104 #include "rnd_template.c"
105 
106 #undef NO_AVG
107 #undef DEF
108 #undef SET_RND
109 
110 #if HAVE_MMX
111 CALL_2X_PIXELS(put_pixels16_xy2_mmx, ff_put_pixels8_xy2_mmx, 8)
112 #endif
113 
114 #endif /* HAVE_INLINE_ASM */
115 
116 
117 #if HAVE_X86ASM
118 
119 #define HPELDSP_AVG_PIXELS16(CPUEXT) \
120  CALL_2X_PIXELS(put_no_rnd_pixels16_x2 ## CPUEXT, ff_put_no_rnd_pixels8_x2 ## CPUEXT, 8) \
121  CALL_2X_PIXELS(put_pixels16_y2 ## CPUEXT, ff_put_pixels8_y2 ## CPUEXT, 8) \
122  CALL_2X_PIXELS(put_no_rnd_pixels16_y2 ## CPUEXT, ff_put_no_rnd_pixels8_y2 ## CPUEXT, 8) \
123  CALL_2X_PIXELS(avg_pixels16 ## CPUEXT, ff_avg_pixels8 ## CPUEXT, 8) \
124  CALL_2X_PIXELS(avg_pixels16_x2 ## CPUEXT, ff_avg_pixels8_x2 ## CPUEXT, 8) \
125  CALL_2X_PIXELS(avg_pixels16_y2 ## CPUEXT, ff_avg_pixels8_y2 ## CPUEXT, 8) \
126  CALL_2X_PIXELS(avg_pixels16_xy2 ## CPUEXT, ff_avg_pixels8_xy2 ## CPUEXT, 8) \
127  CALL_2X_PIXELS(avg_approx_pixels16_xy2## CPUEXT, ff_avg_approx_pixels8_xy2## CPUEXT, 8)
128 
129 HPELDSP_AVG_PIXELS16(_mmxext)
130 
131 #endif /* HAVE_X86ASM */
132 
133 #define SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU) \
134  if (HAVE_MMX_EXTERNAL) \
135  c->PFX ## _pixels_tab IDX [0] = PFX ## _pixels ## SIZE ## _ ## CPU
136 
137 #if HAVE_MMX_INLINE
138 #define SET_HPEL_FUNCS03(PFX, IDX, SIZE, CPU) \
139  do { \
140  SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU); \
141  c->PFX ## _pixels_tab IDX [3] = PFX ## _pixels ## SIZE ## _xy2_ ## CPU; \
142  } while (0)
143 #define SET_HPEL_FUNCS12(PFX, IDX, SIZE, CPU) \
144  do { \
145  c->PFX ## _pixels_tab IDX [1] = PFX ## _pixels ## SIZE ## _x2_ ## CPU; \
146  c->PFX ## _pixels_tab IDX [2] = PFX ## _pixels ## SIZE ## _y2_ ## CPU; \
147  } while (0)
148 #else
149 #define SET_HPEL_FUNCS03(PFX, IDX, SIZE, CPU) SET_HPEL_FUNCS_EXT(PFX, IDX, SIZE, CPU)
150 #define SET_HPEL_FUNCS12(PFX, IDX, SIZE, CPU) ((void)0)
151 #endif
152 #define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU) \
153  do { \
154  SET_HPEL_FUNCS03(PFX, IDX, SIZE, CPU); \
155  SET_HPEL_FUNCS12(PFX, IDX, SIZE, CPU); \
156  } while (0)
157 
158 static void hpeldsp_init_mmx(HpelDSPContext *c, int flags)
159 {
160  SET_HPEL_FUNCS03(put, [0], 16, mmx);
161  SET_HPEL_FUNCS(put_no_rnd, [0], 16, mmx);
162  SET_HPEL_FUNCS(avg_no_rnd, , 16, mmx);
163  SET_HPEL_FUNCS03(put, [1], 8, mmx);
164  SET_HPEL_FUNCS(put_no_rnd, [1], 8, mmx);
165 }
166 
167 static void hpeldsp_init_mmxext(HpelDSPContext *c, int flags)
168 {
169 #if HAVE_MMXEXT_EXTERNAL
170  c->put_pixels_tab[0][1] = ff_put_pixels16_x2_mmxext;
171  c->put_pixels_tab[0][2] = put_pixels16_y2_mmxext;
172 
173  c->avg_pixels_tab[0][0] = avg_pixels16_mmxext;
174  c->avg_pixels_tab[0][1] = avg_pixels16_x2_mmxext;
175  c->avg_pixels_tab[0][2] = avg_pixels16_y2_mmxext;
176  c->avg_pixels_tab[0][3] = avg_pixels16_xy2_mmxext;
177 
178  c->put_pixels_tab[1][1] = ff_put_pixels8_x2_mmxext;
179  c->put_pixels_tab[1][2] = ff_put_pixels8_y2_mmxext;
180 
181  c->avg_pixels_tab[1][0] = ff_avg_pixels8_mmxext;
182  c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_mmxext;
183  c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_mmxext;
184  c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_mmxext;
185 
186  if (!(flags & AV_CODEC_FLAG_BITEXACT)) {
187  c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_mmxext;
188  c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_mmxext;
189  c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_mmxext;
190  c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_mmxext;
191 
192  c->avg_pixels_tab[0][3] = avg_approx_pixels16_xy2_mmxext;
193  c->avg_pixels_tab[1][3] = ff_avg_approx_pixels8_xy2_mmxext;
194  }
195 #endif /* HAVE_MMXEXT_EXTERNAL */
196 }
197 
198 static void hpeldsp_init_sse2_fast(HpelDSPContext *c, int flags)
199 {
200 #if HAVE_SSE2_EXTERNAL
201  c->put_pixels_tab[0][0] = ff_put_pixels16_sse2;
202  c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_sse2;
203  c->put_pixels_tab[0][1] = ff_put_pixels16_x2_sse2;
204  c->put_pixels_tab[0][2] = ff_put_pixels16_y2_sse2;
205  c->put_pixels_tab[0][3] = ff_put_pixels16_xy2_sse2;
206  c->avg_pixels_tab[0][0] = ff_avg_pixels16_sse2;
207  c->avg_pixels_tab[0][1] = ff_avg_pixels16_x2_sse2;
208  c->avg_pixels_tab[0][2] = ff_avg_pixels16_y2_sse2;
209  c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_sse2;
210 #endif /* HAVE_SSE2_EXTERNAL */
211 }
212 
213 static void hpeldsp_init_ssse3(HpelDSPContext *c, int flags)
214 {
215 #if HAVE_SSSE3_EXTERNAL
216  c->put_pixels_tab[0][3] = ff_put_pixels16_xy2_ssse3;
217  c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_ssse3;
218  c->put_pixels_tab[1][3] = ff_put_pixels8_xy2_ssse3;
219  c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_ssse3;
220 #endif
221 }
222 
223 av_cold void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags)
224 {
225  int cpu_flags = av_get_cpu_flags();
226 
227  if (INLINE_MMX(cpu_flags))
228  hpeldsp_init_mmx(c, flags);
229 
230  if (EXTERNAL_MMXEXT(cpu_flags))
231  hpeldsp_init_mmxext(c, flags);
232 
233  if (EXTERNAL_SSE2_FAST(cpu_flags))
234  hpeldsp_init_sse2_fast(c, flags);
235 
236  if (EXTERNAL_SSSE3(cpu_flags))
237  hpeldsp_init_ssse3(c, flags);
238 
239  if (CONFIG_VP3_DECODER)
240  ff_hpeldsp_vp3_init_x86(c, cpu_flags, flags);
241 }
INLINE_MMX
#define INLINE_MMX(flags)
Definition: cpu.h:87
cpu.h
EXTERNAL_SSE2_FAST
#define EXTERNAL_SSE2_FAST(flags)
Definition: cpu.h:60
ff_put_pixels16_y2_sse2
void ff_put_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_put_pixels8_xy2_ssse3
void ff_put_pixels8_xy2_ssse3(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
pixels.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:101
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:52
ff_avg_pixels8_xy2_mmxext
void ff_avg_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp_init_ssse3
static void hpeldsp_init_ssse3(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:213
rnd_template.c
ff_hpeldsp_init_x86
av_cold void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:223
ff_avg_pixels8_y2_mmxext
void ff_avg_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_put_pixels8_xy2_mmx
void ff_put_pixels8_xy2_mmx(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
av_cold
#define av_cold
Definition: attributes.h:90
ff_avg_pixels8_x2_mmxext
void ff_avg_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp_init_mmxext
static void hpeldsp_init_mmxext(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:167
ff_avg_pixels8_mmxext
void ff_avg_pixels8_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
SET_HPEL_FUNCS03
#define SET_HPEL_FUNCS03(PFX, IDX, SIZE, CPU)
Definition: hpeldsp_init.c:149
ff_hpeldsp_vp3_init_x86
void ff_hpeldsp_vp3_init_x86(HpelDSPContext *c, int cpu_flags, int flags)
Definition: hpeldsp_vp3_init.c:35
ff_put_pixels16_sse2
void ff_put_pixels16_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_avg_pixels16_y2_sse2
void ff_avg_pixels16_y2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp_rnd_template.c
ff_avg_pixels16_xy2_sse2
void ff_avg_pixels16_xy2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp_init_sse2_fast
static void hpeldsp_init_sse2_fast(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:198
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
ff_avg_approx_pixels8_xy2_mmxext
void ff_avg_approx_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_put_pixels16_xy2_ssse3
void ff_put_pixels16_xy2_ssse3(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
HpelDSPContext
Half-pel DSP context.
Definition: hpeldsp.h:45
ff_put_pixels16_x2_sse2
void ff_put_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp_init_mmx
static void hpeldsp_init_mmx(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:158
ff_avg_pixels16_sse2
void ff_avg_pixels16_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
cpu.h
ff_put_pixels16_x2_mmxext
void ff_put_pixels16_x2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
attributes.h
ff_put_pixels16_xy2_sse2
void ff_put_pixels16_xy2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_put_pixels8_x2_mmxext
void ff_put_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
avcodec.h
ff_avg_pixels16_xy2_ssse3
void ff_avg_pixels16_xy2_ssse3(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
SET_HPEL_FUNCS
#define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU)
Definition: hpeldsp_init.c:152
CALL_2X_PIXELS
#define CALL_2X_PIXELS(a, b, n)
Definition: pixels.h:34
ff_avg_pixels16_x2_sse2
void ff_avg_pixels16_x2_sse2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
ff_put_pixels8_y2_mmxext
void ff_put_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
fpel.h
AV_CODEC_FLAG_BITEXACT
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
Definition: avcodec.h:278
ff_put_no_rnd_pixels8_y2_mmxext
void ff_put_no_rnd_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
hpeldsp.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
ff_avg_pixels8_xy2_ssse3
void ff_avg_pixels8_xy2_ssse3(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
h
h
Definition: vp9dsp_template.c:2038
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
ff_put_no_rnd_pixels8_x2_mmxext
void ff_put_no_rnd_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
EXTERNAL_MMXEXT
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:57
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