annotate decoders/mpglib/dct64_i386.c @ 276:d7d55903124c

Changed --enable-vorbis to --enable-ogg, made other format tweaks.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 14 Mar 2002 16:16:53 +0000
parents 9b6e82f7c853
children
rev   line source
261
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
1
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
2 /*
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
3 * Discrete Cosine Tansform (DCT) for subband synthesis
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
4 * optimized for machines with no auto-increment.
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
5 * The performance is highly compiler dependend. Maybe
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
6 * the dct64.c version for 'normal' processor may be faster
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
7 * even for Intel processors.
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
8 */
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
9
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
10 #include "mpg123_sdlsound.h"
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
11
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
12 static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples)
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
13 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
14
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
15 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
16 register real *costab = pnts[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
17
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
18 b1[0x00] = samples[0x00] + samples[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
19 b1[0x1F] = (samples[0x00] - samples[0x1F]) * costab[0x0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
20
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
21 b1[0x01] = samples[0x01] + samples[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
22 b1[0x1E] = (samples[0x01] - samples[0x1E]) * costab[0x1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
23
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
24 b1[0x02] = samples[0x02] + samples[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
25 b1[0x1D] = (samples[0x02] - samples[0x1D]) * costab[0x2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
26
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
27 b1[0x03] = samples[0x03] + samples[0x1C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
28 b1[0x1C] = (samples[0x03] - samples[0x1C]) * costab[0x3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
29
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
30 b1[0x04] = samples[0x04] + samples[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
31 b1[0x1B] = (samples[0x04] - samples[0x1B]) * costab[0x4];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
32
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
33 b1[0x05] = samples[0x05] + samples[0x1A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
34 b1[0x1A] = (samples[0x05] - samples[0x1A]) * costab[0x5];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
35
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
36 b1[0x06] = samples[0x06] + samples[0x19];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
37 b1[0x19] = (samples[0x06] - samples[0x19]) * costab[0x6];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
38
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
39 b1[0x07] = samples[0x07] + samples[0x18];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
40 b1[0x18] = (samples[0x07] - samples[0x18]) * costab[0x7];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
41
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
42 b1[0x08] = samples[0x08] + samples[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
43 b1[0x17] = (samples[0x08] - samples[0x17]) * costab[0x8];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
44
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
45 b1[0x09] = samples[0x09] + samples[0x16];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
46 b1[0x16] = (samples[0x09] - samples[0x16]) * costab[0x9];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
47
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
48 b1[0x0A] = samples[0x0A] + samples[0x15];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
49 b1[0x15] = (samples[0x0A] - samples[0x15]) * costab[0xA];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
50
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
51 b1[0x0B] = samples[0x0B] + samples[0x14];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
52 b1[0x14] = (samples[0x0B] - samples[0x14]) * costab[0xB];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
53
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
54 b1[0x0C] = samples[0x0C] + samples[0x13];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
55 b1[0x13] = (samples[0x0C] - samples[0x13]) * costab[0xC];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
56
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
57 b1[0x0D] = samples[0x0D] + samples[0x12];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
58 b1[0x12] = (samples[0x0D] - samples[0x12]) * costab[0xD];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
59
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
60 b1[0x0E] = samples[0x0E] + samples[0x11];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
61 b1[0x11] = (samples[0x0E] - samples[0x11]) * costab[0xE];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
62
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
63 b1[0x0F] = samples[0x0F] + samples[0x10];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
64 b1[0x10] = (samples[0x0F] - samples[0x10]) * costab[0xF];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
65 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
66
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
67
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
68 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
69 register real *costab = pnts[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
70
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
71 b2[0x00] = b1[0x00] + b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
72 b2[0x0F] = (b1[0x00] - b1[0x0F]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
73 b2[0x01] = b1[0x01] + b1[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
74 b2[0x0E] = (b1[0x01] - b1[0x0E]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
75 b2[0x02] = b1[0x02] + b1[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
76 b2[0x0D] = (b1[0x02] - b1[0x0D]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
77 b2[0x03] = b1[0x03] + b1[0x0C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
78 b2[0x0C] = (b1[0x03] - b1[0x0C]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
79 b2[0x04] = b1[0x04] + b1[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
80 b2[0x0B] = (b1[0x04] - b1[0x0B]) * costab[4];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
81 b2[0x05] = b1[0x05] + b1[0x0A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
82 b2[0x0A] = (b1[0x05] - b1[0x0A]) * costab[5];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
83 b2[0x06] = b1[0x06] + b1[0x09];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
84 b2[0x09] = (b1[0x06] - b1[0x09]) * costab[6];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
85 b2[0x07] = b1[0x07] + b1[0x08];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
86 b2[0x08] = (b1[0x07] - b1[0x08]) * costab[7];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
87
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
88 b2[0x10] = b1[0x10] + b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
89 b2[0x1F] = (b1[0x1F] - b1[0x10]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
90 b2[0x11] = b1[0x11] + b1[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
91 b2[0x1E] = (b1[0x1E] - b1[0x11]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
92 b2[0x12] = b1[0x12] + b1[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
93 b2[0x1D] = (b1[0x1D] - b1[0x12]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
94 b2[0x13] = b1[0x13] + b1[0x1C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
95 b2[0x1C] = (b1[0x1C] - b1[0x13]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
96 b2[0x14] = b1[0x14] + b1[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
97 b2[0x1B] = (b1[0x1B] - b1[0x14]) * costab[4];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
98 b2[0x15] = b1[0x15] + b1[0x1A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
99 b2[0x1A] = (b1[0x1A] - b1[0x15]) * costab[5];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
100 b2[0x16] = b1[0x16] + b1[0x19];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
101 b2[0x19] = (b1[0x19] - b1[0x16]) * costab[6];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
102 b2[0x17] = b1[0x17] + b1[0x18];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
103 b2[0x18] = (b1[0x18] - b1[0x17]) * costab[7];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
104 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
105
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
106 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
107 register real *costab = pnts[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
108
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
109 b1[0x00] = b2[0x00] + b2[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
110 b1[0x07] = (b2[0x00] - b2[0x07]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
111 b1[0x01] = b2[0x01] + b2[0x06];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
112 b1[0x06] = (b2[0x01] - b2[0x06]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
113 b1[0x02] = b2[0x02] + b2[0x05];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
114 b1[0x05] = (b2[0x02] - b2[0x05]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
115 b1[0x03] = b2[0x03] + b2[0x04];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
116 b1[0x04] = (b2[0x03] - b2[0x04]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
117
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
118 b1[0x08] = b2[0x08] + b2[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
119 b1[0x0F] = (b2[0x0F] - b2[0x08]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
120 b1[0x09] = b2[0x09] + b2[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
121 b1[0x0E] = (b2[0x0E] - b2[0x09]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
122 b1[0x0A] = b2[0x0A] + b2[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
123 b1[0x0D] = (b2[0x0D] - b2[0x0A]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
124 b1[0x0B] = b2[0x0B] + b2[0x0C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
125 b1[0x0C] = (b2[0x0C] - b2[0x0B]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
126
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
127 b1[0x10] = b2[0x10] + b2[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
128 b1[0x17] = (b2[0x10] - b2[0x17]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
129 b1[0x11] = b2[0x11] + b2[0x16];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
130 b1[0x16] = (b2[0x11] - b2[0x16]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
131 b1[0x12] = b2[0x12] + b2[0x15];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
132 b1[0x15] = (b2[0x12] - b2[0x15]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
133 b1[0x13] = b2[0x13] + b2[0x14];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
134 b1[0x14] = (b2[0x13] - b2[0x14]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
135
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
136 b1[0x18] = b2[0x18] + b2[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
137 b1[0x1F] = (b2[0x1F] - b2[0x18]) * costab[0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
138 b1[0x19] = b2[0x19] + b2[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
139 b1[0x1E] = (b2[0x1E] - b2[0x19]) * costab[1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
140 b1[0x1A] = b2[0x1A] + b2[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
141 b1[0x1D] = (b2[0x1D] - b2[0x1A]) * costab[2];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
142 b1[0x1B] = b2[0x1B] + b2[0x1C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
143 b1[0x1C] = (b2[0x1C] - b2[0x1B]) * costab[3];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
144 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
145
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
146 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
147 register real const cos0 = pnts[3][0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
148 register real const cos1 = pnts[3][1];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
149
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
150 b2[0x00] = b1[0x00] + b1[0x03];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
151 b2[0x03] = (b1[0x00] - b1[0x03]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
152 b2[0x01] = b1[0x01] + b1[0x02];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
153 b2[0x02] = (b1[0x01] - b1[0x02]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
154
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
155 b2[0x04] = b1[0x04] + b1[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
156 b2[0x07] = (b1[0x07] - b1[0x04]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
157 b2[0x05] = b1[0x05] + b1[0x06];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
158 b2[0x06] = (b1[0x06] - b1[0x05]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
159
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
160 b2[0x08] = b1[0x08] + b1[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
161 b2[0x0B] = (b1[0x08] - b1[0x0B]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
162 b2[0x09] = b1[0x09] + b1[0x0A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
163 b2[0x0A] = (b1[0x09] - b1[0x0A]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
164
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
165 b2[0x0C] = b1[0x0C] + b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
166 b2[0x0F] = (b1[0x0F] - b1[0x0C]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
167 b2[0x0D] = b1[0x0D] + b1[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
168 b2[0x0E] = (b1[0x0E] - b1[0x0D]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
169
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
170 b2[0x10] = b1[0x10] + b1[0x13];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
171 b2[0x13] = (b1[0x10] - b1[0x13]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
172 b2[0x11] = b1[0x11] + b1[0x12];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
173 b2[0x12] = (b1[0x11] - b1[0x12]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
174
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
175 b2[0x14] = b1[0x14] + b1[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
176 b2[0x17] = (b1[0x17] - b1[0x14]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
177 b2[0x15] = b1[0x15] + b1[0x16];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
178 b2[0x16] = (b1[0x16] - b1[0x15]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
179
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
180 b2[0x18] = b1[0x18] + b1[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
181 b2[0x1B] = (b1[0x18] - b1[0x1B]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
182 b2[0x19] = b1[0x19] + b1[0x1A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
183 b2[0x1A] = (b1[0x19] - b1[0x1A]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
184
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
185 b2[0x1C] = b1[0x1C] + b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
186 b2[0x1F] = (b1[0x1F] - b1[0x1C]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
187 b2[0x1D] = b1[0x1D] + b1[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
188 b2[0x1E] = (b1[0x1E] - b1[0x1D]) * cos1;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
189 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
190
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
191 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
192 register real const cos0 = pnts[4][0];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
193
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
194 b1[0x00] = b2[0x00] + b2[0x01];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
195 b1[0x01] = (b2[0x00] - b2[0x01]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
196 b1[0x02] = b2[0x02] + b2[0x03];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
197 b1[0x03] = (b2[0x03] - b2[0x02]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
198 b1[0x02] += b1[0x03];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
199
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
200 b1[0x04] = b2[0x04] + b2[0x05];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
201 b1[0x05] = (b2[0x04] - b2[0x05]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
202 b1[0x06] = b2[0x06] + b2[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
203 b1[0x07] = (b2[0x07] - b2[0x06]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
204 b1[0x06] += b1[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
205 b1[0x04] += b1[0x06];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
206 b1[0x06] += b1[0x05];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
207 b1[0x05] += b1[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
208
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
209 b1[0x08] = b2[0x08] + b2[0x09];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
210 b1[0x09] = (b2[0x08] - b2[0x09]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
211 b1[0x0A] = b2[0x0A] + b2[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
212 b1[0x0B] = (b2[0x0B] - b2[0x0A]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
213 b1[0x0A] += b1[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
214
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
215 b1[0x0C] = b2[0x0C] + b2[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
216 b1[0x0D] = (b2[0x0C] - b2[0x0D]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
217 b1[0x0E] = b2[0x0E] + b2[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
218 b1[0x0F] = (b2[0x0F] - b2[0x0E]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
219 b1[0x0E] += b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
220 b1[0x0C] += b1[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
221 b1[0x0E] += b1[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
222 b1[0x0D] += b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
223
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
224 b1[0x10] = b2[0x10] + b2[0x11];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
225 b1[0x11] = (b2[0x10] - b2[0x11]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
226 b1[0x12] = b2[0x12] + b2[0x13];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
227 b1[0x13] = (b2[0x13] - b2[0x12]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
228 b1[0x12] += b1[0x13];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
229
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
230 b1[0x14] = b2[0x14] + b2[0x15];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
231 b1[0x15] = (b2[0x14] - b2[0x15]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
232 b1[0x16] = b2[0x16] + b2[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
233 b1[0x17] = (b2[0x17] - b2[0x16]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
234 b1[0x16] += b1[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
235 b1[0x14] += b1[0x16];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
236 b1[0x16] += b1[0x15];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
237 b1[0x15] += b1[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
238
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
239 b1[0x18] = b2[0x18] + b2[0x19];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
240 b1[0x19] = (b2[0x18] - b2[0x19]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
241 b1[0x1A] = b2[0x1A] + b2[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
242 b1[0x1B] = (b2[0x1B] - b2[0x1A]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
243 b1[0x1A] += b1[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
244
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
245 b1[0x1C] = b2[0x1C] + b2[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
246 b1[0x1D] = (b2[0x1C] - b2[0x1D]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
247 b1[0x1E] = b2[0x1E] + b2[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
248 b1[0x1F] = (b2[0x1F] - b2[0x1E]) * cos0;
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
249 b1[0x1E] += b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
250 b1[0x1C] += b1[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
251 b1[0x1E] += b1[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
252 b1[0x1D] += b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
253 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
254
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
255 out0[0x10*16] = b1[0x00];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
256 out0[0x10*12] = b1[0x04];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
257 out0[0x10* 8] = b1[0x02];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
258 out0[0x10* 4] = b1[0x06];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
259 out0[0x10* 0] = b1[0x01];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
260 out1[0x10* 0] = b1[0x01];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
261 out1[0x10* 4] = b1[0x05];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
262 out1[0x10* 8] = b1[0x03];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
263 out1[0x10*12] = b1[0x07];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
264
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
265 b1[0x08] += b1[0x0C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
266 out0[0x10*14] = b1[0x08];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
267 b1[0x0C] += b1[0x0a];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
268 out0[0x10*10] = b1[0x0C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
269 b1[0x0A] += b1[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
270 out0[0x10* 6] = b1[0x0A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
271 b1[0x0E] += b1[0x09];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
272 out0[0x10* 2] = b1[0x0E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
273 b1[0x09] += b1[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
274 out1[0x10* 2] = b1[0x09];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
275 b1[0x0D] += b1[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
276 out1[0x10* 6] = b1[0x0D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
277 b1[0x0B] += b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
278 out1[0x10*10] = b1[0x0B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
279 out1[0x10*14] = b1[0x0F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
280
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
281 b1[0x18] += b1[0x1C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
282 out0[0x10*15] = b1[0x10] + b1[0x18];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
283 out0[0x10*13] = b1[0x18] + b1[0x14];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
284 b1[0x1C] += b1[0x1a];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
285 out0[0x10*11] = b1[0x14] + b1[0x1C];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
286 out0[0x10* 9] = b1[0x1C] + b1[0x12];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
287 b1[0x1A] += b1[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
288 out0[0x10* 7] = b1[0x12] + b1[0x1A];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
289 out0[0x10* 5] = b1[0x1A] + b1[0x16];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
290 b1[0x1E] += b1[0x19];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
291 out0[0x10* 3] = b1[0x16] + b1[0x1E];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
292 out0[0x10* 1] = b1[0x1E] + b1[0x11];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
293 b1[0x19] += b1[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
294 out1[0x10* 1] = b1[0x11] + b1[0x19];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
295 out1[0x10* 3] = b1[0x19] + b1[0x15];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
296 b1[0x1D] += b1[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
297 out1[0x10* 5] = b1[0x15] + b1[0x1D];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
298 out1[0x10* 7] = b1[0x1D] + b1[0x13];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
299 b1[0x1B] += b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
300 out1[0x10* 9] = b1[0x13] + b1[0x1B];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
301 out1[0x10*11] = b1[0x1B] + b1[0x17];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
302 out1[0x10*13] = b1[0x17] + b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
303 out1[0x10*15] = b1[0x1F];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
304 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
305
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
306 /*
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
307 * the call via dct64 is a trick to force GCC to use
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
308 * (new) registers for the b1,b2 pointer to the bufs[xx] field
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
309 */
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
310 void dct64(real *a,real *b,real *c)
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
311 {
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
312 real bufs[0x40];
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
313 dct64_1(a,b,bufs,bufs+0x20,c);
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
314 }
9b6e82f7c853 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
315