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dirac_dwt.c
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1 /*
2  * MMX optimized discrete wavelet transform
3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
4  * Copyright (c) 2010 David Conrad
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 
23 #include "libavutil/x86/asm.h"
24 #include "dsputil_x86.h"
25 #include "dirac_dwt.h"
26 
27 #define COMPOSE_VERTICAL(ext, align) \
28 void ff_vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
29 void ff_vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
30 void ff_vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
31 void ff_vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
32 void ff_vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width); \
33 void ff_horizontal_compose_haar0i##ext(IDWTELEM *b, IDWTELEM *tmp, int w);\
34 void ff_horizontal_compose_haar1i##ext(IDWTELEM *b, IDWTELEM *tmp, int w);\
35 \
36 static void vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
37 { \
38  int i, width_align = width&~(align-1); \
39 \
40  for(i=width_align; i<width; i++) \
41  b1[i] = COMPOSE_53iL0(b0[i], b1[i], b2[i]); \
42 \
43  ff_vertical_compose53iL0##ext(b0, b1, b2, width_align); \
44 } \
45 \
46 static void vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
47 { \
48  int i, width_align = width&~(align-1); \
49 \
50  for(i=width_align; i<width; i++) \
51  b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); \
52 \
53  ff_vertical_compose_dirac53iH0##ext(b0, b1, b2, width_align); \
54 } \
55 \
56 static void vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
57  IDWTELEM *b3, IDWTELEM *b4, int width) \
58 { \
59  int i, width_align = width&~(align-1); \
60 \
61  for(i=width_align; i<width; i++) \
62  b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
63 \
64  ff_vertical_compose_dd137iL0##ext(b0, b1, b2, b3, b4, width_align); \
65 } \
66 \
67 static void vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
68  IDWTELEM *b3, IDWTELEM *b4, int width) \
69 { \
70  int i, width_align = width&~(align-1); \
71 \
72  for(i=width_align; i<width; i++) \
73  b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
74 \
75  ff_vertical_compose_dd97iH0##ext(b0, b1, b2, b3, b4, width_align); \
76 } \
77 static void vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width) \
78 { \
79  int i, width_align = width&~(align-1); \
80 \
81  for(i=width_align; i<width; i++) { \
82  b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); \
83  b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); \
84  } \
85 \
86  ff_vertical_compose_haar##ext(b0, b1, width_align); \
87 } \
88 static void horizontal_compose_haar0i##ext(IDWTELEM *b, IDWTELEM *tmp, int w)\
89 {\
90  int w2= w>>1;\
91  int x= w2 - (w2&(align-1));\
92  ff_horizontal_compose_haar0i##ext(b, tmp, w);\
93 \
94  for (; x < w2; x++) {\
95  b[2*x ] = tmp[x];\
96  b[2*x+1] = COMPOSE_HAARiH0(b[x+w2], tmp[x]);\
97  }\
98 }\
99 static void horizontal_compose_haar1i##ext(IDWTELEM *b, IDWTELEM *tmp, int w)\
100 {\
101  int w2= w>>1;\
102  int x= w2 - (w2&(align-1));\
103  ff_horizontal_compose_haar1i##ext(b, tmp, w);\
104 \
105  for (; x < w2; x++) {\
106  b[2*x ] = (tmp[x] + 1)>>1;\
107  b[2*x+1] = (COMPOSE_HAARiH0(b[x+w2], tmp[x]) + 1)>>1;\
108  }\
109 }\
110 \
111 
112 #if HAVE_YASM
113 #if !ARCH_X86_64
114 COMPOSE_VERTICAL(_mmx, 4)
115 #endif
116 COMPOSE_VERTICAL(_sse2, 8)
117 
118 
119 void ff_horizontal_compose_dd97i_ssse3(IDWTELEM *b, IDWTELEM *tmp, int w);
120 
121 static void horizontal_compose_dd97i_ssse3(IDWTELEM *b, IDWTELEM *tmp, int w)
122 {
123  int w2= w>>1;
124  int x= w2 - (w2&7);
125  ff_horizontal_compose_dd97i_ssse3(b, tmp, w);
126 
127  for (; x < w2; x++) {
128  b[2*x ] = (tmp[x] + 1)>>1;
129  b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
130  }
131 }
132 #endif
133 
135 {
136 #if HAVE_YASM
137  int mm_flags = av_get_cpu_flags();
138 
139 #if !ARCH_X86_64
140  if (!(mm_flags & AV_CPU_FLAG_MMX))
141  return;
142 
143  switch (type) {
144  case DWT_DIRAC_DD9_7:
145  d->vertical_compose_l0 = (void*)vertical_compose53iL0_mmx;
146  d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_mmx;
147  break;
148  case DWT_DIRAC_LEGALL5_3:
149  d->vertical_compose_l0 = (void*)vertical_compose53iL0_mmx;
150  d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0_mmx;
151  break;
152  case DWT_DIRAC_DD13_7:
153  d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0_mmx;
154  d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_mmx;
155  break;
156  case DWT_DIRAC_HAAR0:
157  d->vertical_compose = (void*)vertical_compose_haar_mmx;
158  d->horizontal_compose = horizontal_compose_haar0i_mmx;
159  break;
160  case DWT_DIRAC_HAAR1:
161  d->vertical_compose = (void*)vertical_compose_haar_mmx;
162  d->horizontal_compose = horizontal_compose_haar1i_mmx;
163  break;
164  }
165 #endif
166 
167  if (!(mm_flags & AV_CPU_FLAG_SSE2))
168  return;
169 
170  switch (type) {
171  case DWT_DIRAC_DD9_7:
172  d->vertical_compose_l0 = (void*)vertical_compose53iL0_sse2;
173  d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_sse2;
174  break;
175  case DWT_DIRAC_LEGALL5_3:
176  d->vertical_compose_l0 = (void*)vertical_compose53iL0_sse2;
177  d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0_sse2;
178  break;
179  case DWT_DIRAC_DD13_7:
180  d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0_sse2;
181  d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0_sse2;
182  break;
183  case DWT_DIRAC_HAAR0:
184  d->vertical_compose = (void*)vertical_compose_haar_sse2;
185  d->horizontal_compose = horizontal_compose_haar0i_sse2;
186  break;
187  case DWT_DIRAC_HAAR1:
188  d->vertical_compose = (void*)vertical_compose_haar_sse2;
189  d->horizontal_compose = horizontal_compose_haar1i_sse2;
190  break;
191  }
192 
193  if (!(mm_flags & AV_CPU_FLAG_SSSE3))
194  return;
195 
196  switch (type) {
197  case DWT_DIRAC_DD9_7:
198  d->horizontal_compose = horizontal_compose_dd97i_ssse3;
199  break;
200  }
201 #endif // HAVE_YASM
202 }