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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 
HPELDSP_AVG_PIXELS16(_mmxext)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 
hpeldsp_init_mmxext(HpelDSPContext * c,int flags)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 
hpeldsp_init_sse2_fast(HpelDSPContext * c,int flags)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 
hpeldsp_init_ssse3(HpelDSPContext * c,int flags)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 
ff_hpeldsp_init_x86(HpelDSPContext * c,int flags)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 }
242