2
* Copyright (C) 2004 the ffmpeg project
4
* This file is part of FFmpeg.
6
* FFmpeg is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU Lesser General Public
8
* License as published by the Free Software Foundation; either
9
* version 2.1 of the License, or (at your option) any later version.
11
* FFmpeg is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14
* Lesser General Public License for more details.
16
* You should have received a copy of the GNU Lesser General Public
17
* License along with FFmpeg; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
* SSE2-optimized functions cribbed from the original VP3 source code.
26
#include "libavcodec/dsputil.h"
27
#include "dsputil_mmx.h"
28
#include "vp3dsp_sse2.h"
30
DECLARE_ALIGNED(16, const uint16_t, ff_vp3_idct_data)[7 * 8] =
32
64277,64277,64277,64277,64277,64277,64277,64277,
33
60547,60547,60547,60547,60547,60547,60547,60547,
34
54491,54491,54491,54491,54491,54491,54491,54491,
35
46341,46341,46341,46341,46341,46341,46341,46341,
36
36410,36410,36410,36410,36410,36410,36410,36410,
37
25080,25080,25080,25080,25080,25080,25080,25080,
38
12785,12785,12785,12785,12785,12785,12785,12785
42
#define VP3_1D_IDCT_SSE2(ADD, SHIFT) \
43
"movdqa "I(3)", %%xmm2 \n\t" /* xmm2 = i3 */ \
44
"movdqa "C(3)", %%xmm6 \n\t" /* xmm6 = c3 */ \
45
"movdqa %%xmm2, %%xmm4 \n\t" /* xmm4 = i3 */ \
46
"movdqa "I(5)", %%xmm7 \n\t" /* xmm7 = i5 */ \
47
"pmulhw %%xmm6, %%xmm4 \n\t" /* xmm4 = c3 * i3 - i3 */ \
48
"movdqa "C(5)", %%xmm1 \n\t" /* xmm1 = c5 */ \
49
"pmulhw %%xmm7, %%xmm6 \n\t" /* xmm6 = c3 * i5 - i5 */ \
50
"movdqa %%xmm1, %%xmm5 \n\t" /* xmm5 = c5 */ \
51
"pmulhw %%xmm2, %%xmm1 \n\t" /* xmm1 = c5 * i3 - i3 */ \
52
"movdqa "I(1)", %%xmm3 \n\t" /* xmm3 = i1 */ \
53
"pmulhw %%xmm7, %%xmm5 \n\t" /* xmm5 = c5 * i5 - i5 */ \
54
"movdqa "C(1)", %%xmm0 \n\t" /* xmm0 = c1 */ \
55
"paddw %%xmm2, %%xmm4 \n\t" /* xmm4 = c3 * i3 */ \
56
"paddw %%xmm7, %%xmm6 \n\t" /* xmm6 = c3 * i5 */ \
57
"paddw %%xmm1, %%xmm2 \n\t" /* xmm2 = c5 * i3 */ \
58
"movdqa "I(7)", %%xmm1 \n\t" /* xmm1 = i7 */ \
59
"paddw %%xmm5, %%xmm7 \n\t" /* xmm7 = c5 * i5 */ \
60
"movdqa %%xmm0, %%xmm5 \n\t" /* xmm5 = c1 */ \
61
"pmulhw %%xmm3, %%xmm0 \n\t" /* xmm0 = c1 * i1 - i1 */ \
62
"paddsw %%xmm7, %%xmm4 \n\t" /* xmm4 = c3 * i3 + c5 * i5 = C */ \
63
"pmulhw %%xmm1, %%xmm5 \n\t" /* xmm5 = c1 * i7 - i7 */ \
64
"movdqa "C(7)", %%xmm7 \n\t" /* xmm7 = c7 */ \
65
"psubsw %%xmm2, %%xmm6 \n\t" /* xmm6 = c3 * i5 - c5 * i3 = D */ \
66
"paddw %%xmm3, %%xmm0 \n\t" /* xmm0 = c1 * i1 */ \
67
"pmulhw %%xmm7, %%xmm3 \n\t" /* xmm3 = c7 * i1 */ \
68
"movdqa "I(2)", %%xmm2 \n\t" /* xmm2 = i2 */ \
69
"pmulhw %%xmm1, %%xmm7 \n\t" /* xmm7 = c7 * i7 */ \
70
"paddw %%xmm1, %%xmm5 \n\t" /* xmm5 = c1 * i7 */ \
71
"movdqa %%xmm2, %%xmm1 \n\t" /* xmm1 = i2 */ \
72
"pmulhw "C(2)", %%xmm2 \n\t" /* xmm2 = i2 * c2 -i2 */ \
73
"psubsw %%xmm5, %%xmm3 \n\t" /* xmm3 = c7 * i1 - c1 * i7 = B */ \
74
"movdqa "I(6)", %%xmm5 \n\t" /* xmm5 = i6 */ \
75
"paddsw %%xmm7, %%xmm0 \n\t" /* xmm0 = c1 * i1 + c7 * i7 = A */ \
76
"movdqa %%xmm5, %%xmm7 \n\t" /* xmm7 = i6 */ \
77
"psubsw %%xmm4, %%xmm0 \n\t" /* xmm0 = A - C */ \
78
"pmulhw "C(2)", %%xmm5 \n\t" /* xmm5 = c2 * i6 - i6 */ \
79
"paddw %%xmm1, %%xmm2 \n\t" /* xmm2 = i2 * c2 */ \
80
"pmulhw "C(6)", %%xmm1 \n\t" /* xmm1 = c6 * i2 */ \
81
"paddsw %%xmm4, %%xmm4 \n\t" /* xmm4 = C + C */ \
82
"paddsw %%xmm0, %%xmm4 \n\t" /* xmm4 = A + C = C. */ \
83
"psubsw %%xmm6, %%xmm3 \n\t" /* xmm3 = B - D */ \
84
"paddw %%xmm7, %%xmm5 \n\t" /* xmm5 = c2 * i6 */ \
85
"paddsw %%xmm6, %%xmm6 \n\t" /* xmm6 = D + D */ \
86
"pmulhw "C(6)", %%xmm7 \n\t" /* xmm7 = c6 * i6 */ \
87
"paddsw %%xmm3, %%xmm6 \n\t" /* xmm6 = B + D = D. */ \
88
"movdqa %%xmm4, "I(1)" \n\t" /* Save C. at I(1) */ \
89
"psubsw %%xmm5, %%xmm1 \n\t" /* xmm1 = c6 * i2 - c2 * i6 = H */ \
90
"movdqa "C(4)", %%xmm4 \n\t" /* xmm4 = c4 */ \
91
"movdqa %%xmm3, %%xmm5 \n\t" /* xmm5 = B - D */ \
92
"pmulhw %%xmm4, %%xmm3 \n\t" /* xmm3 = ( c4 -1 ) * ( B - D ) */ \
93
"paddsw %%xmm2, %%xmm7 \n\t" /* xmm7 = c2 * i2 + c6 * i6 = G */ \
94
"movdqa %%xmm6, "I(2)" \n\t" /* Save D. at I(2) */ \
95
"movdqa %%xmm0, %%xmm2 \n\t" /* xmm2 = A - C */ \
96
"movdqa "I(0)", %%xmm6 \n\t" /* xmm6 = i0 */ \
97
"pmulhw %%xmm4, %%xmm0 \n\t" /* xmm0 = ( c4 - 1 ) * ( A - C ) = A. */ \
98
"paddw %%xmm3, %%xmm5 \n\t" /* xmm5 = c4 * ( B - D ) = B. */ \
99
"movdqa "I(4)", %%xmm3 \n\t" /* xmm3 = i4 */ \
100
"psubsw %%xmm1, %%xmm5 \n\t" /* xmm5 = B. - H = B.. */ \
101
"paddw %%xmm0, %%xmm2 \n\t" /* xmm2 = c4 * ( A - C) = A. */ \
102
"psubsw %%xmm3, %%xmm6 \n\t" /* xmm6 = i0 - i4 */ \
103
"movdqa %%xmm6, %%xmm0 \n\t" /* xmm0 = i0 - i4 */ \
104
"pmulhw %%xmm4, %%xmm6 \n\t" /* xmm6 = (c4 - 1) * (i0 - i4) = F */ \
105
"paddsw %%xmm3, %%xmm3 \n\t" /* xmm3 = i4 + i4 */ \
106
"paddsw %%xmm1, %%xmm1 \n\t" /* xmm1 = H + H */ \
107
"paddsw %%xmm0, %%xmm3 \n\t" /* xmm3 = i0 + i4 */ \
108
"paddsw %%xmm5, %%xmm1 \n\t" /* xmm1 = B. + H = H. */ \
109
"pmulhw %%xmm3, %%xmm4 \n\t" /* xmm4 = ( c4 - 1 ) * ( i0 + i4 ) */ \
110
"paddw %%xmm0, %%xmm6 \n\t" /* xmm6 = c4 * ( i0 - i4 ) */ \
111
"psubsw %%xmm2, %%xmm6 \n\t" /* xmm6 = F - A. = F. */ \
112
"paddsw %%xmm2, %%xmm2 \n\t" /* xmm2 = A. + A. */ \
113
"movdqa "I(1)", %%xmm0 \n\t" /* Load C. from I(1) */ \
114
"paddsw %%xmm6, %%xmm2 \n\t" /* xmm2 = F + A. = A.. */ \
115
"paddw %%xmm3, %%xmm4 \n\t" /* xmm4 = c4 * ( i0 + i4 ) = 3 */ \
116
"psubsw %%xmm1, %%xmm2 \n\t" /* xmm2 = A.. - H. = R2 */ \
117
ADD(%%xmm2) /* Adjust R2 and R1 before shifting */ \
118
"paddsw %%xmm1, %%xmm1 \n\t" /* xmm1 = H. + H. */ \
119
"paddsw %%xmm2, %%xmm1 \n\t" /* xmm1 = A.. + H. = R1 */ \
120
SHIFT(%%xmm2) /* xmm2 = op2 */ \
121
"psubsw %%xmm7, %%xmm4 \n\t" /* xmm4 = E - G = E. */ \
122
SHIFT(%%xmm1) /* xmm1 = op1 */ \
123
"movdqa "I(2)", %%xmm3 \n\t" /* Load D. from I(2) */ \
124
"paddsw %%xmm7, %%xmm7 \n\t" /* xmm7 = G + G */ \
125
"paddsw %%xmm4, %%xmm7 \n\t" /* xmm7 = E + G = G. */ \
126
"psubsw %%xmm3, %%xmm4 \n\t" /* xmm4 = E. - D. = R4 */ \
127
ADD(%%xmm4) /* Adjust R4 and R3 before shifting */ \
128
"paddsw %%xmm3, %%xmm3 \n\t" /* xmm3 = D. + D. */ \
129
"paddsw %%xmm4, %%xmm3 \n\t" /* xmm3 = E. + D. = R3 */ \
130
SHIFT(%%xmm4) /* xmm4 = op4 */ \
131
"psubsw %%xmm5, %%xmm6 \n\t" /* xmm6 = F. - B..= R6 */ \
132
SHIFT(%%xmm3) /* xmm3 = op3 */ \
133
ADD(%%xmm6) /* Adjust R6 and R5 before shifting */ \
134
"paddsw %%xmm5, %%xmm5 \n\t" /* xmm5 = B.. + B.. */ \
135
"paddsw %%xmm6, %%xmm5 \n\t" /* xmm5 = F. + B.. = R5 */ \
136
SHIFT(%%xmm6) /* xmm6 = op6 */ \
137
SHIFT(%%xmm5) /* xmm5 = op5 */ \
138
"psubsw %%xmm0, %%xmm7 \n\t" /* xmm7 = G. - C. = R7 */ \
139
ADD(%%xmm7) /* Adjust R7 and R0 before shifting */ \
140
"paddsw %%xmm0, %%xmm0 \n\t" /* xmm0 = C. + C. */ \
141
"paddsw %%xmm7, %%xmm0 \n\t" /* xmm0 = G. + C. */ \
142
SHIFT(%%xmm7) /* xmm7 = op7 */ \
143
SHIFT(%%xmm0) /* xmm0 = op0 */
145
#define PUT_BLOCK(r0, r1, r2, r3, r4, r5, r6, r7) \
146
"movdqa " #r0 ", " O(0) "\n\t" \
147
"movdqa " #r1 ", " O(1) "\n\t" \
148
"movdqa " #r2 ", " O(2) "\n\t" \
149
"movdqa " #r3 ", " O(3) "\n\t" \
150
"movdqa " #r4 ", " O(4) "\n\t" \
151
"movdqa " #r5 ", " O(5) "\n\t" \
152
"movdqa " #r6 ", " O(6) "\n\t" \
153
"movdqa " #r7 ", " O(7) "\n\t"
156
#define SHIFT4(xmm) "psraw $4, "#xmm"\n\t"
157
#define ADD8(xmm) "paddsw %2, "#xmm"\n\t"
159
void ff_vp3_idct_sse2(int16_t *input_data)
161
#define I(x) AV_STRINGIFY(16*x)"(%0)"
163
#define C(x) AV_STRINGIFY(16*(x-1))"(%1)"
166
VP3_1D_IDCT_SSE2(NOP, NOP)
168
TRANSPOSE8(%%xmm0, %%xmm1, %%xmm2, %%xmm3, %%xmm4, %%xmm5, %%xmm6, %%xmm7, (%0))
169
PUT_BLOCK(%%xmm0, %%xmm5, %%xmm7, %%xmm3, %%xmm6, %%xmm4, %%xmm2, %%xmm1)
171
VP3_1D_IDCT_SSE2(ADD8, SHIFT4)
172
PUT_BLOCK(%%xmm0, %%xmm1, %%xmm2, %%xmm3, %%xmm4, %%xmm5, %%xmm6, %%xmm7)
173
:: "r"(input_data), "r"(ff_vp3_idct_data), "m"(ff_pw_8)
177
void ff_vp3_idct_put_sse2(uint8_t *dest, int line_size, DCTELEM *block)
179
ff_vp3_idct_sse2(block);
180
put_signed_pixels_clamped_mmx(block, dest, line_size);
183
void ff_vp3_idct_add_sse2(uint8_t *dest, int line_size, DCTELEM *block)
185
ff_vp3_idct_sse2(block);
186
add_pixels_clamped_mmx(block, dest, line_size);
added
removed
libavcodec/x86/vp3dsp_sse2.c
