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00011 #ifdef HAVE_CONFIG_H
00012 #include <config.h>
00013 #endif
00014
00015 #include "dct64_i386.h"
00016 #include "tabinit.h"
00017
00018 #ifdef WITH_DMALLOC
00019 #include <dmalloc.h>
00020 #endif
00021
00022 static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples)
00023 {
00024
00025 {
00026 real *costab = pnts[0];
00027
00028 b1[0x00] = samples[0x00] + samples[0x1F];
00029 b1[0x1F] = (samples[0x00] - samples[0x1F]) * costab[0x0];
00030
00031 b1[0x01] = samples[0x01] + samples[0x1E];
00032 b1[0x1E] = (samples[0x01] - samples[0x1E]) * costab[0x1];
00033
00034 b1[0x02] = samples[0x02] + samples[0x1D];
00035 b1[0x1D] = (samples[0x02] - samples[0x1D]) * costab[0x2];
00036
00037 b1[0x03] = samples[0x03] + samples[0x1C];
00038 b1[0x1C] = (samples[0x03] - samples[0x1C]) * costab[0x3];
00039
00040 b1[0x04] = samples[0x04] + samples[0x1B];
00041 b1[0x1B] = (samples[0x04] - samples[0x1B]) * costab[0x4];
00042
00043 b1[0x05] = samples[0x05] + samples[0x1A];
00044 b1[0x1A] = (samples[0x05] - samples[0x1A]) * costab[0x5];
00045
00046 b1[0x06] = samples[0x06] + samples[0x19];
00047 b1[0x19] = (samples[0x06] - samples[0x19]) * costab[0x6];
00048
00049 b1[0x07] = samples[0x07] + samples[0x18];
00050 b1[0x18] = (samples[0x07] - samples[0x18]) * costab[0x7];
00051
00052 b1[0x08] = samples[0x08] + samples[0x17];
00053 b1[0x17] = (samples[0x08] - samples[0x17]) * costab[0x8];
00054
00055 b1[0x09] = samples[0x09] + samples[0x16];
00056 b1[0x16] = (samples[0x09] - samples[0x16]) * costab[0x9];
00057
00058 b1[0x0A] = samples[0x0A] + samples[0x15];
00059 b1[0x15] = (samples[0x0A] - samples[0x15]) * costab[0xA];
00060
00061 b1[0x0B] = samples[0x0B] + samples[0x14];
00062 b1[0x14] = (samples[0x0B] - samples[0x14]) * costab[0xB];
00063
00064 b1[0x0C] = samples[0x0C] + samples[0x13];
00065 b1[0x13] = (samples[0x0C] - samples[0x13]) * costab[0xC];
00066
00067 b1[0x0D] = samples[0x0D] + samples[0x12];
00068 b1[0x12] = (samples[0x0D] - samples[0x12]) * costab[0xD];
00069
00070 b1[0x0E] = samples[0x0E] + samples[0x11];
00071 b1[0x11] = (samples[0x0E] - samples[0x11]) * costab[0xE];
00072
00073 b1[0x0F] = samples[0x0F] + samples[0x10];
00074 b1[0x10] = (samples[0x0F] - samples[0x10]) * costab[0xF];
00075 }
00076
00077
00078 {
00079 real *costab = pnts[1];
00080
00081 b2[0x00] = b1[0x00] + b1[0x0F];
00082 b2[0x0F] = (b1[0x00] - b1[0x0F]) * costab[0];
00083 b2[0x01] = b1[0x01] + b1[0x0E];
00084 b2[0x0E] = (b1[0x01] - b1[0x0E]) * costab[1];
00085 b2[0x02] = b1[0x02] + b1[0x0D];
00086 b2[0x0D] = (b1[0x02] - b1[0x0D]) * costab[2];
00087 b2[0x03] = b1[0x03] + b1[0x0C];
00088 b2[0x0C] = (b1[0x03] - b1[0x0C]) * costab[3];
00089 b2[0x04] = b1[0x04] + b1[0x0B];
00090 b2[0x0B] = (b1[0x04] - b1[0x0B]) * costab[4];
00091 b2[0x05] = b1[0x05] + b1[0x0A];
00092 b2[0x0A] = (b1[0x05] - b1[0x0A]) * costab[5];
00093 b2[0x06] = b1[0x06] + b1[0x09];
00094 b2[0x09] = (b1[0x06] - b1[0x09]) * costab[6];
00095 b2[0x07] = b1[0x07] + b1[0x08];
00096 b2[0x08] = (b1[0x07] - b1[0x08]) * costab[7];
00097
00098 b2[0x10] = b1[0x10] + b1[0x1F];
00099 b2[0x1F] = (b1[0x1F] - b1[0x10]) * costab[0];
00100 b2[0x11] = b1[0x11] + b1[0x1E];
00101 b2[0x1E] = (b1[0x1E] - b1[0x11]) * costab[1];
00102 b2[0x12] = b1[0x12] + b1[0x1D];
00103 b2[0x1D] = (b1[0x1D] - b1[0x12]) * costab[2];
00104 b2[0x13] = b1[0x13] + b1[0x1C];
00105 b2[0x1C] = (b1[0x1C] - b1[0x13]) * costab[3];
00106 b2[0x14] = b1[0x14] + b1[0x1B];
00107 b2[0x1B] = (b1[0x1B] - b1[0x14]) * costab[4];
00108 b2[0x15] = b1[0x15] + b1[0x1A];
00109 b2[0x1A] = (b1[0x1A] - b1[0x15]) * costab[5];
00110 b2[0x16] = b1[0x16] + b1[0x19];
00111 b2[0x19] = (b1[0x19] - b1[0x16]) * costab[6];
00112 b2[0x17] = b1[0x17] + b1[0x18];
00113 b2[0x18] = (b1[0x18] - b1[0x17]) * costab[7];
00114 }
00115
00116 {
00117 real *costab = pnts[2];
00118
00119 b1[0x00] = b2[0x00] + b2[0x07];
00120 b1[0x07] = (b2[0x00] - b2[0x07]) * costab[0];
00121 b1[0x01] = b2[0x01] + b2[0x06];
00122 b1[0x06] = (b2[0x01] - b2[0x06]) * costab[1];
00123 b1[0x02] = b2[0x02] + b2[0x05];
00124 b1[0x05] = (b2[0x02] - b2[0x05]) * costab[2];
00125 b1[0x03] = b2[0x03] + b2[0x04];
00126 b1[0x04] = (b2[0x03] - b2[0x04]) * costab[3];
00127
00128 b1[0x08] = b2[0x08] + b2[0x0F];
00129 b1[0x0F] = (b2[0x0F] - b2[0x08]) * costab[0];
00130 b1[0x09] = b2[0x09] + b2[0x0E];
00131 b1[0x0E] = (b2[0x0E] - b2[0x09]) * costab[1];
00132 b1[0x0A] = b2[0x0A] + b2[0x0D];
00133 b1[0x0D] = (b2[0x0D] - b2[0x0A]) * costab[2];
00134 b1[0x0B] = b2[0x0B] + b2[0x0C];
00135 b1[0x0C] = (b2[0x0C] - b2[0x0B]) * costab[3];
00136
00137 b1[0x10] = b2[0x10] + b2[0x17];
00138 b1[0x17] = (b2[0x10] - b2[0x17]) * costab[0];
00139 b1[0x11] = b2[0x11] + b2[0x16];
00140 b1[0x16] = (b2[0x11] - b2[0x16]) * costab[1];
00141 b1[0x12] = b2[0x12] + b2[0x15];
00142 b1[0x15] = (b2[0x12] - b2[0x15]) * costab[2];
00143 b1[0x13] = b2[0x13] + b2[0x14];
00144 b1[0x14] = (b2[0x13] - b2[0x14]) * costab[3];
00145
00146 b1[0x18] = b2[0x18] + b2[0x1F];
00147 b1[0x1F] = (b2[0x1F] - b2[0x18]) * costab[0];
00148 b1[0x19] = b2[0x19] + b2[0x1E];
00149 b1[0x1E] = (b2[0x1E] - b2[0x19]) * costab[1];
00150 b1[0x1A] = b2[0x1A] + b2[0x1D];
00151 b1[0x1D] = (b2[0x1D] - b2[0x1A]) * costab[2];
00152 b1[0x1B] = b2[0x1B] + b2[0x1C];
00153 b1[0x1C] = (b2[0x1C] - b2[0x1B]) * costab[3];
00154 }
00155
00156 {
00157 real const cos0 = pnts[3][0];
00158 real const cos1 = pnts[3][1];
00159
00160 b2[0x00] = b1[0x00] + b1[0x03];
00161 b2[0x03] = (b1[0x00] - b1[0x03]) * cos0;
00162 b2[0x01] = b1[0x01] + b1[0x02];
00163 b2[0x02] = (b1[0x01] - b1[0x02]) * cos1;
00164
00165 b2[0x04] = b1[0x04] + b1[0x07];
00166 b2[0x07] = (b1[0x07] - b1[0x04]) * cos0;
00167 b2[0x05] = b1[0x05] + b1[0x06];
00168 b2[0x06] = (b1[0x06] - b1[0x05]) * cos1;
00169
00170 b2[0x08] = b1[0x08] + b1[0x0B];
00171 b2[0x0B] = (b1[0x08] - b1[0x0B]) * cos0;
00172 b2[0x09] = b1[0x09] + b1[0x0A];
00173 b2[0x0A] = (b1[0x09] - b1[0x0A]) * cos1;
00174
00175 b2[0x0C] = b1[0x0C] + b1[0x0F];
00176 b2[0x0F] = (b1[0x0F] - b1[0x0C]) * cos0;
00177 b2[0x0D] = b1[0x0D] + b1[0x0E];
00178 b2[0x0E] = (b1[0x0E] - b1[0x0D]) * cos1;
00179
00180 b2[0x10] = b1[0x10] + b1[0x13];
00181 b2[0x13] = (b1[0x10] - b1[0x13]) * cos0;
00182 b2[0x11] = b1[0x11] + b1[0x12];
00183 b2[0x12] = (b1[0x11] - b1[0x12]) * cos1;
00184
00185 b2[0x14] = b1[0x14] + b1[0x17];
00186 b2[0x17] = (b1[0x17] - b1[0x14]) * cos0;
00187 b2[0x15] = b1[0x15] + b1[0x16];
00188 b2[0x16] = (b1[0x16] - b1[0x15]) * cos1;
00189
00190 b2[0x18] = b1[0x18] + b1[0x1B];
00191 b2[0x1B] = (b1[0x18] - b1[0x1B]) * cos0;
00192 b2[0x19] = b1[0x19] + b1[0x1A];
00193 b2[0x1A] = (b1[0x19] - b1[0x1A]) * cos1;
00194
00195 b2[0x1C] = b1[0x1C] + b1[0x1F];
00196 b2[0x1F] = (b1[0x1F] - b1[0x1C]) * cos0;
00197 b2[0x1D] = b1[0x1D] + b1[0x1E];
00198 b2[0x1E] = (b1[0x1E] - b1[0x1D]) * cos1;
00199 }
00200
00201 {
00202 real const cos0 = pnts[4][0];
00203
00204 b1[0x00] = b2[0x00] + b2[0x01];
00205 b1[0x01] = (b2[0x00] - b2[0x01]) * cos0;
00206 b1[0x02] = b2[0x02] + b2[0x03];
00207 b1[0x03] = (b2[0x03] - b2[0x02]) * cos0;
00208 b1[0x02] += b1[0x03];
00209
00210 b1[0x04] = b2[0x04] + b2[0x05];
00211 b1[0x05] = (b2[0x04] - b2[0x05]) * cos0;
00212 b1[0x06] = b2[0x06] + b2[0x07];
00213 b1[0x07] = (b2[0x07] - b2[0x06]) * cos0;
00214 b1[0x06] += b1[0x07];
00215 b1[0x04] += b1[0x06];
00216 b1[0x06] += b1[0x05];
00217 b1[0x05] += b1[0x07];
00218
00219 b1[0x08] = b2[0x08] + b2[0x09];
00220 b1[0x09] = (b2[0x08] - b2[0x09]) * cos0;
00221 b1[0x0A] = b2[0x0A] + b2[0x0B];
00222 b1[0x0B] = (b2[0x0B] - b2[0x0A]) * cos0;
00223 b1[0x0A] += b1[0x0B];
00224
00225 b1[0x0C] = b2[0x0C] + b2[0x0D];
00226 b1[0x0D] = (b2[0x0C] - b2[0x0D]) * cos0;
00227 b1[0x0E] = b2[0x0E] + b2[0x0F];
00228 b1[0x0F] = (b2[0x0F] - b2[0x0E]) * cos0;
00229 b1[0x0E] += b1[0x0F];
00230 b1[0x0C] += b1[0x0E];
00231 b1[0x0E] += b1[0x0D];
00232 b1[0x0D] += b1[0x0F];
00233
00234 b1[0x10] = b2[0x10] + b2[0x11];
00235 b1[0x11] = (b2[0x10] - b2[0x11]) * cos0;
00236 b1[0x12] = b2[0x12] + b2[0x13];
00237 b1[0x13] = (b2[0x13] - b2[0x12]) * cos0;
00238 b1[0x12] += b1[0x13];
00239
00240 b1[0x14] = b2[0x14] + b2[0x15];
00241 b1[0x15] = (b2[0x14] - b2[0x15]) * cos0;
00242 b1[0x16] = b2[0x16] + b2[0x17];
00243 b1[0x17] = (b2[0x17] - b2[0x16]) * cos0;
00244 b1[0x16] += b1[0x17];
00245 b1[0x14] += b1[0x16];
00246 b1[0x16] += b1[0x15];
00247 b1[0x15] += b1[0x17];
00248
00249 b1[0x18] = b2[0x18] + b2[0x19];
00250 b1[0x19] = (b2[0x18] - b2[0x19]) * cos0;
00251 b1[0x1A] = b2[0x1A] + b2[0x1B];
00252 b1[0x1B] = (b2[0x1B] - b2[0x1A]) * cos0;
00253 b1[0x1A] += b1[0x1B];
00254
00255 b1[0x1C] = b2[0x1C] + b2[0x1D];
00256 b1[0x1D] = (b2[0x1C] - b2[0x1D]) * cos0;
00257 b1[0x1E] = b2[0x1E] + b2[0x1F];
00258 b1[0x1F] = (b2[0x1F] - b2[0x1E]) * cos0;
00259 b1[0x1E] += b1[0x1F];
00260 b1[0x1C] += b1[0x1E];
00261 b1[0x1E] += b1[0x1D];
00262 b1[0x1D] += b1[0x1F];
00263 }
00264
00265 out0[0x10*16] = b1[0x00];
00266 out0[0x10*12] = b1[0x04];
00267 out0[0x10* 8] = b1[0x02];
00268 out0[0x10* 4] = b1[0x06];
00269 out0[0x10* 0] = b1[0x01];
00270 out1[0x10* 0] = b1[0x01];
00271 out1[0x10* 4] = b1[0x05];
00272 out1[0x10* 8] = b1[0x03];
00273 out1[0x10*12] = b1[0x07];
00274
00275 b1[0x08] += b1[0x0C];
00276 out0[0x10*14] = b1[0x08];
00277 b1[0x0C] += b1[0x0a];
00278 out0[0x10*10] = b1[0x0C];
00279 b1[0x0A] += b1[0x0E];
00280 out0[0x10* 6] = b1[0x0A];
00281 b1[0x0E] += b1[0x09];
00282 out0[0x10* 2] = b1[0x0E];
00283 b1[0x09] += b1[0x0D];
00284 out1[0x10* 2] = b1[0x09];
00285 b1[0x0D] += b1[0x0B];
00286 out1[0x10* 6] = b1[0x0D];
00287 b1[0x0B] += b1[0x0F];
00288 out1[0x10*10] = b1[0x0B];
00289 out1[0x10*14] = b1[0x0F];
00290
00291 b1[0x18] += b1[0x1C];
00292 out0[0x10*15] = b1[0x10] + b1[0x18];
00293 out0[0x10*13] = b1[0x18] + b1[0x14];
00294 b1[0x1C] += b1[0x1a];
00295 out0[0x10*11] = b1[0x14] + b1[0x1C];
00296 out0[0x10* 9] = b1[0x1C] + b1[0x12];
00297 b1[0x1A] += b1[0x1E];
00298 out0[0x10* 7] = b1[0x12] + b1[0x1A];
00299 out0[0x10* 5] = b1[0x1A] + b1[0x16];
00300 b1[0x1E] += b1[0x19];
00301 out0[0x10* 3] = b1[0x16] + b1[0x1E];
00302 out0[0x10* 1] = b1[0x1E] + b1[0x11];
00303 b1[0x19] += b1[0x1D];
00304 out1[0x10* 1] = b1[0x11] + b1[0x19];
00305 out1[0x10* 3] = b1[0x19] + b1[0x15];
00306 b1[0x1D] += b1[0x1B];
00307 out1[0x10* 5] = b1[0x15] + b1[0x1D];
00308 out1[0x10* 7] = b1[0x1D] + b1[0x13];
00309 b1[0x1B] += b1[0x1F];
00310 out1[0x10* 9] = b1[0x13] + b1[0x1B];
00311 out1[0x10*11] = b1[0x1B] + b1[0x17];
00312 out1[0x10*13] = b1[0x17] + b1[0x1F];
00313 out1[0x10*15] = b1[0x1F];
00314 }
00315
00316
00317
00318
00319
00320 void dct64( real *a,real *b,real *c)
00321 {
00322 real bufs[0x40];
00323 dct64_1(a,b,bufs,bufs+0x20,c);
00324 }
00325