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Diffstat (limited to 'libfaad2/sbr_dct.c')
| -rw-r--r-- | libfaad2/sbr_dct.c | 2271 |
1 files changed, 0 insertions, 2271 deletions
diff --git a/libfaad2/sbr_dct.c b/libfaad2/sbr_dct.c deleted file mode 100644 index a8edef3867..0000000000 --- a/libfaad2/sbr_dct.c +++ /dev/null @@ -1,2271 +0,0 @@ -/* -** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding -** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU General Public License as published by -** the Free Software Foundation; either version 2 of the License, or -** (at your option) any later version. -** -** This program is distributed in the hope that it will be useful, -** but WITHOUT ANY WARRANTY; without even the implied warranty of -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -** GNU General Public License for more details. -** -** You should have received a copy of the GNU General Public License -** along with this program; if not, write to the Free Software -** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -** -** Any non-GPL usage of this software or parts of this software is strictly -** forbidden. -** -** Commercial non-GPL licensing of this software is possible. -** For more info contact Ahead Software through Mpeg4AAClicense@nero.com. -** -** $Id: sbr_dct.c,v 1.15 2004/09/04 14:56:28 menno Exp $ -**/ - -#include "common.h" - -#ifdef SBR_DEC - -#ifdef _MSC_VER -#pragma warning(disable:4305) -#pragma warning(disable:4244) -#endif - - -#include "sbr_dct.h" - -void DCT4_32(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10; - real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20; - real_t f21, f22, f23, f24, f25, f26, f27, f28, f29, f30; - real_t f31, f32, f33, f34, f35, f36, f37, f38, f39, f40; - real_t f41, f42, f43, f44, f45, f46, f47, f48, f49, f50; - real_t f51, f52, f53, f54, f55, f56, f57, f58, f59, f60; - real_t f61, f62, f63, f64, f65, f66, f67, f68, f69, f70; - real_t f71, f72, f73, f74, f75, f76, f77, f78, f79, f80; - real_t f81, f82, f83, f84, f85, f86, f87, f88, f89, f90; - real_t f91, f92, f93, f94, f95, f96, f97, f98, f99, f100; - real_t f101, f102, f103, f104, f105, f106, f107, f108, f109, f110; - real_t f111, f112, f113, f114, f115, f116, f117, f118, f119, f120; - real_t f121, f122, f123, f124, f125, f126, f127, f128, f129, f130; - real_t f131, f132, f133, f134, f135, f136, f137, f138, f139, f140; - real_t f141, f142, f143, f144, f145, f146, f147, f148, f149, f150; - real_t f151, f152, f153, f154, f155, f156, f157, f158, f159, f160; - real_t f161, f162, f163, f164, f165, f166, f167, f168, f169, f170; - real_t f171, f172, f173, f174, f175, f176, f177, f178, f179, f180; - real_t f181, f182, f183, f184, f185, f186, f187, f188, f189, f190; - real_t f191, f192, f193, f194, f195, f196, f197, f198, f199, f200; - real_t f201, f202, f203, f204, f205, f206, f207, f208, f209, f210; - real_t f211, f212, f213, f214, f215, f216, f217, f218, f219, f220; - real_t f221, f222, f223, f224, f225, f226, f227, f228, f229, f230; - real_t f231, f232, f233, f234, f235, f236, f237, f238, f239, f240; - real_t f241, f242, f243, f244, f245, f246, f247, f248, f249, f250; - real_t f251, f252, f253, f254, f255, f256, f257, f258, f259, f260; - real_t f261, f262, f263, f264, f265, f266, f267, f268, f269, f270; - real_t f271, f272, f273, f274, f275, f276, f277, f278, f279, f280; - real_t f281, f282, f283, f284, f285, f286, f287, f288, f289, f290; - real_t f291, f292, f293, f294, f295, f296, f297, f298, f299, f300; - real_t f301, f302, f303, f304, f305, f306, f307, f310, f311, f312; - real_t f313, f316, f317, f318, f319, f322, f323, f324, f325, f328; - real_t f329, f330, f331, f334, f335, f336, f337, f340, f341, f342; - real_t f343, f346, f347, f348, f349, f352, f353, f354, f355, f358; - real_t f359, f360, f361, f364, f365, f366, f367, f370, f371, f372; - real_t f373, f376, f377, f378, f379, f382, f383, f384, f385, f388; - real_t f389, f390, f391, f394, f395, f396, f397; - - f0 = x[15] - x[16]; - f1 = x[15] + x[16]; - f2 = MUL_F(FRAC_CONST(0.7071067811865476), f1); - f3 = MUL_F(FRAC_CONST(0.7071067811865476), f0); - f4 = x[8] - x[23]; - f5 = x[8] + x[23]; - f6 = MUL_F(FRAC_CONST(0.7071067811865476), f5); - f7 = MUL_F(FRAC_CONST(0.7071067811865476), f4); - f8 = x[12] - x[19]; - f9 = x[12] + x[19]; - f10 = MUL_F(FRAC_CONST(0.7071067811865476), f9); - f11 = MUL_F(FRAC_CONST(0.7071067811865476), f8); - f12 = x[11] - x[20]; - f13 = x[11] + x[20]; - f14 = MUL_F(FRAC_CONST(0.7071067811865476), f13); - f15 = MUL_F(FRAC_CONST(0.7071067811865476), f12); - f16 = x[14] - x[17]; - f17 = x[14] + x[17]; - f18 = MUL_F(FRAC_CONST(0.7071067811865476), f17); - f19 = MUL_F(FRAC_CONST(0.7071067811865476), f16); - f20 = x[9] - x[22]; - f21 = x[9] + x[22]; - f22 = MUL_F(FRAC_CONST(0.7071067811865476), f21); - f23 = MUL_F(FRAC_CONST(0.7071067811865476), f20); - f24 = x[13] - x[18]; - f25 = x[13] + x[18]; - f26 = MUL_F(FRAC_CONST(0.7071067811865476), f25); - f27 = MUL_F(FRAC_CONST(0.7071067811865476), f24); - f28 = x[10] - x[21]; - f29 = x[10] + x[21]; - f30 = MUL_F(FRAC_CONST(0.7071067811865476), f29); - f31 = MUL_F(FRAC_CONST(0.7071067811865476), f28); - f32 = x[0] - f2; - f33 = x[0] + f2; - f34 = x[31] - f3; - f35 = x[31] + f3; - f36 = x[7] - f6; - f37 = x[7] + f6; - f38 = x[24] - f7; - f39 = x[24] + f7; - f40 = x[3] - f10; - f41 = x[3] + f10; - f42 = x[28] - f11; - f43 = x[28] + f11; - f44 = x[4] - f14; - f45 = x[4] + f14; - f46 = x[27] - f15; - f47 = x[27] + f15; - f48 = x[1] - f18; - f49 = x[1] + f18; - f50 = x[30] - f19; - f51 = x[30] + f19; - f52 = x[6] - f22; - f53 = x[6] + f22; - f54 = x[25] - f23; - f55 = x[25] + f23; - f56 = x[2] - f26; - f57 = x[2] + f26; - f58 = x[29] - f27; - f59 = x[29] + f27; - f60 = x[5] - f30; - f61 = x[5] + f30; - f62 = x[26] - f31; - f63 = x[26] + f31; - f64 = f39 + f37; - f65 = MUL_F(FRAC_CONST(-0.5411961001461969), f39); - f66 = MUL_F(FRAC_CONST(0.9238795325112867), f64); - f67 = MUL_C(COEF_CONST(1.3065629648763766), f37); - f68 = f65 + f66; - f69 = f67 - f66; - f70 = f38 + f36; - f71 = MUL_C(COEF_CONST(1.3065629648763770), f38); - f72 = MUL_F(FRAC_CONST(-0.3826834323650904), f70); - f73 = MUL_F(FRAC_CONST(0.5411961001461961), f36); - f74 = f71 + f72; - f75 = f73 - f72; - f76 = f47 + f45; - f77 = MUL_F(FRAC_CONST(-0.5411961001461969), f47); - f78 = MUL_F(FRAC_CONST(0.9238795325112867), f76); - f79 = MUL_C(COEF_CONST(1.3065629648763766), f45); - f80 = f77 + f78; - f81 = f79 - f78; - f82 = f46 + f44; - f83 = MUL_C(COEF_CONST(1.3065629648763770), f46); - f84 = MUL_F(FRAC_CONST(-0.3826834323650904), f82); - f85 = MUL_F(FRAC_CONST(0.5411961001461961), f44); - f86 = f83 + f84; - f87 = f85 - f84; - f88 = f55 + f53; - f89 = MUL_F(FRAC_CONST(-0.5411961001461969), f55); - f90 = MUL_F(FRAC_CONST(0.9238795325112867), f88); - f91 = MUL_C(COEF_CONST(1.3065629648763766), f53); - f92 = f89 + f90; - f93 = f91 - f90; - f94 = f54 + f52; - f95 = MUL_C(COEF_CONST(1.3065629648763770), f54); - f96 = MUL_F(FRAC_CONST(-0.3826834323650904), f94); - f97 = MUL_F(FRAC_CONST(0.5411961001461961), f52); - f98 = f95 + f96; - f99 = f97 - f96; - f100 = f63 + f61; - f101 = MUL_F(FRAC_CONST(-0.5411961001461969), f63); - f102 = MUL_F(FRAC_CONST(0.9238795325112867), f100); - f103 = MUL_C(COEF_CONST(1.3065629648763766), f61); - f104 = f101 + f102; - f105 = f103 - f102; - f106 = f62 + f60; - f107 = MUL_C(COEF_CONST(1.3065629648763770), f62); - f108 = MUL_F(FRAC_CONST(-0.3826834323650904), f106); - f109 = MUL_F(FRAC_CONST(0.5411961001461961), f60); - f110 = f107 + f108; - f111 = f109 - f108; - f112 = f33 - f68; - f113 = f33 + f68; - f114 = f35 - f69; - f115 = f35 + f69; - f116 = f32 - f74; - f117 = f32 + f74; - f118 = f34 - f75; - f119 = f34 + f75; - f120 = f41 - f80; - f121 = f41 + f80; - f122 = f43 - f81; - f123 = f43 + f81; - f124 = f40 - f86; - f125 = f40 + f86; - f126 = f42 - f87; - f127 = f42 + f87; - f128 = f49 - f92; - f129 = f49 + f92; - f130 = f51 - f93; - f131 = f51 + f93; - f132 = f48 - f98; - f133 = f48 + f98; - f134 = f50 - f99; - f135 = f50 + f99; - f136 = f57 - f104; - f137 = f57 + f104; - f138 = f59 - f105; - f139 = f59 + f105; - f140 = f56 - f110; - f141 = f56 + f110; - f142 = f58 - f111; - f143 = f58 + f111; - f144 = f123 + f121; - f145 = MUL_F(FRAC_CONST(-0.7856949583871021), f123); - f146 = MUL_F(FRAC_CONST(0.9807852804032304), f144); - f147 = MUL_C(COEF_CONST(1.1758756024193588), f121); - f148 = f145 + f146; - f149 = f147 - f146; - f150 = f127 + f125; - f151 = MUL_F(FRAC_CONST(0.2758993792829431), f127); - f152 = MUL_F(FRAC_CONST(0.5555702330196022), f150); - f153 = MUL_C(COEF_CONST(1.3870398453221475), f125); - f154 = f151 + f152; - f155 = f153 - f152; - f156 = f122 + f120; - f157 = MUL_C(COEF_CONST(1.1758756024193591), f122); - f158 = MUL_F(FRAC_CONST(-0.1950903220161287), f156); - f159 = MUL_F(FRAC_CONST(0.7856949583871016), f120); - f160 = f157 + f158; - f161 = f159 - f158; - f162 = f126 + f124; - f163 = MUL_C(COEF_CONST(1.3870398453221473), f126); - f164 = MUL_F(FRAC_CONST(-0.8314696123025455), f162); - f165 = MUL_F(FRAC_CONST(-0.2758993792829436), f124); - f166 = f163 + f164; - f167 = f165 - f164; - f168 = f139 + f137; - f169 = MUL_F(FRAC_CONST(-0.7856949583871021), f139); - f170 = MUL_F(FRAC_CONST(0.9807852804032304), f168); - f171 = MUL_C(COEF_CONST(1.1758756024193588), f137); - f172 = f169 + f170; - f173 = f171 - f170; - f174 = f143 + f141; - f175 = MUL_F(FRAC_CONST(0.2758993792829431), f143); - f176 = MUL_F(FRAC_CONST(0.5555702330196022), f174); - f177 = MUL_C(COEF_CONST(1.3870398453221475), f141); - f178 = f175 + f176; - f179 = f177 - f176; - f180 = f138 + f136; - f181 = MUL_C(COEF_CONST(1.1758756024193591), f138); - f182 = MUL_F(FRAC_CONST(-0.1950903220161287), f180); - f183 = MUL_F(FRAC_CONST(0.7856949583871016), f136); - f184 = f181 + f182; - f185 = f183 - f182; - f186 = f142 + f140; - f187 = MUL_C(COEF_CONST(1.3870398453221473), f142); - f188 = MUL_F(FRAC_CONST(-0.8314696123025455), f186); - f189 = MUL_F(FRAC_CONST(-0.2758993792829436), f140); - f190 = f187 + f188; - f191 = f189 - f188; - f192 = f113 - f148; - f193 = f113 + f148; - f194 = f115 - f149; - f195 = f115 + f149; - f196 = f117 - f154; - f197 = f117 + f154; - f198 = f119 - f155; - f199 = f119 + f155; - f200 = f112 - f160; - f201 = f112 + f160; - f202 = f114 - f161; - f203 = f114 + f161; - f204 = f116 - f166; - f205 = f116 + f166; - f206 = f118 - f167; - f207 = f118 + f167; - f208 = f129 - f172; - f209 = f129 + f172; - f210 = f131 - f173; - f211 = f131 + f173; - f212 = f133 - f178; - f213 = f133 + f178; - f214 = f135 - f179; - f215 = f135 + f179; - f216 = f128 - f184; - f217 = f128 + f184; - f218 = f130 - f185; - f219 = f130 + f185; - f220 = f132 - f190; - f221 = f132 + f190; - f222 = f134 - f191; - f223 = f134 + f191; - f224 = f211 + f209; - f225 = MUL_F(FRAC_CONST(-0.8971675863426361), f211); - f226 = MUL_F(FRAC_CONST(0.9951847266721968), f224); - f227 = MUL_C(COEF_CONST(1.0932018670017576), f209); - f228 = f225 + f226; - f229 = f227 - f226; - f230 = f215 + f213; - f231 = MUL_F(FRAC_CONST(-0.4105245275223571), f215); - f232 = MUL_F(FRAC_CONST(0.8819212643483549), f230); - f233 = MUL_C(COEF_CONST(1.3533180011743529), f213); - f234 = f231 + f232; - f235 = f233 - f232; - f236 = f219 + f217; - f237 = MUL_F(FRAC_CONST(0.1386171691990915), f219); - f238 = MUL_F(FRAC_CONST(0.6343932841636455), f236); - f239 = MUL_C(COEF_CONST(1.4074037375263826), f217); - f240 = f237 + f238; - f241 = f239 - f238; - f242 = f223 + f221; - f243 = MUL_F(FRAC_CONST(0.6666556584777466), f223); - f244 = MUL_F(FRAC_CONST(0.2902846772544623), f242); - f245 = MUL_C(COEF_CONST(1.2472250129866711), f221); - f246 = f243 + f244; - f247 = f245 - f244; - f248 = f210 + f208; - f249 = MUL_C(COEF_CONST(1.0932018670017574), f210); - f250 = MUL_F(FRAC_CONST(-0.0980171403295605), f248); - f251 = MUL_F(FRAC_CONST(0.8971675863426364), f208); - f252 = f249 + f250; - f253 = f251 - f250; - f254 = f214 + f212; - f255 = MUL_C(COEF_CONST(1.3533180011743529), f214); - f256 = MUL_F(FRAC_CONST(-0.4713967368259979), f254); - f257 = MUL_F(FRAC_CONST(0.4105245275223569), f212); - f258 = f255 + f256; - f259 = f257 - f256; - f260 = f218 + f216; - f261 = MUL_C(COEF_CONST(1.4074037375263826), f218); - f262 = MUL_F(FRAC_CONST(-0.7730104533627369), f260); - f263 = MUL_F(FRAC_CONST(-0.1386171691990913), f216); - f264 = f261 + f262; - f265 = f263 - f262; - f266 = f222 + f220; - f267 = MUL_C(COEF_CONST(1.2472250129866711), f222); - f268 = MUL_F(FRAC_CONST(-0.9569403357322089), f266); - f269 = MUL_F(FRAC_CONST(-0.6666556584777469), f220); - f270 = f267 + f268; - f271 = f269 - f268; - f272 = f193 - f228; - f273 = f193 + f228; - f274 = f195 - f229; - f275 = f195 + f229; - f276 = f197 - f234; - f277 = f197 + f234; - f278 = f199 - f235; - f279 = f199 + f235; - f280 = f201 - f240; - f281 = f201 + f240; - f282 = f203 - f241; - f283 = f203 + f241; - f284 = f205 - f246; - f285 = f205 + f246; - f286 = f207 - f247; - f287 = f207 + f247; - f288 = f192 - f252; - f289 = f192 + f252; - f290 = f194 - f253; - f291 = f194 + f253; - f292 = f196 - f258; - f293 = f196 + f258; - f294 = f198 - f259; - f295 = f198 + f259; - f296 = f200 - f264; - f297 = f200 + f264; - f298 = f202 - f265; - f299 = f202 + f265; - f300 = f204 - f270; - f301 = f204 + f270; - f302 = f206 - f271; - f303 = f206 + f271; - f304 = f275 + f273; - f305 = MUL_F(FRAC_CONST(-0.9751575901732920), f275); - f306 = MUL_F(FRAC_CONST(0.9996988186962043), f304); - f307 = MUL_C(COEF_CONST(1.0242400472191164), f273); - y[0] = f305 + f306; - y[31] = f307 - f306; - f310 = f279 + f277; - f311 = MUL_F(FRAC_CONST(-0.8700688593994936), f279); - f312 = MUL_F(FRAC_CONST(0.9924795345987100), f310); - f313 = MUL_C(COEF_CONST(1.1148902097979263), f277); - y[2] = f311 + f312; - y[29] = f313 - f312; - f316 = f283 + f281; - f317 = MUL_F(FRAC_CONST(-0.7566008898816587), f283); - f318 = MUL_F(FRAC_CONST(0.9757021300385286), f316); - f319 = MUL_C(COEF_CONST(1.1948033701953984), f281); - y[4] = f317 + f318; - y[27] = f319 - f318; - f322 = f287 + f285; - f323 = MUL_F(FRAC_CONST(-0.6358464401941451), f287); - f324 = MUL_F(FRAC_CONST(0.9495281805930367), f322); - f325 = MUL_C(COEF_CONST(1.2632099209919283), f285); - y[6] = f323 + f324; - y[25] = f325 - f324; - f328 = f291 + f289; - f329 = MUL_F(FRAC_CONST(-0.5089684416985408), f291); - f330 = MUL_F(FRAC_CONST(0.9142097557035307), f328); - f331 = MUL_C(COEF_CONST(1.3194510697085207), f289); - y[8] = f329 + f330; - y[23] = f331 - f330; - f334 = f295 + f293; - f335 = MUL_F(FRAC_CONST(-0.3771887988789273), f295); - f336 = MUL_F(FRAC_CONST(0.8700869911087114), f334); - f337 = MUL_C(COEF_CONST(1.3629851833384954), f293); - y[10] = f335 + f336; - y[21] = f337 - f336; - f340 = f299 + f297; - f341 = MUL_F(FRAC_CONST(-0.2417766217337384), f299); - f342 = MUL_F(FRAC_CONST(0.8175848131515837), f340); - f343 = MUL_C(COEF_CONST(1.3933930045694289), f297); - y[12] = f341 + f342; - y[19] = f343 - f342; - f346 = f303 + f301; - f347 = MUL_F(FRAC_CONST(-0.1040360035527077), f303); - f348 = MUL_F(FRAC_CONST(0.7572088465064845), f346); - f349 = MUL_C(COEF_CONST(1.4103816894602612), f301); - y[14] = f347 + f348; - y[17] = f349 - f348; - f352 = f274 + f272; - f353 = MUL_F(FRAC_CONST(0.0347065382144002), f274); - f354 = MUL_F(FRAC_CONST(0.6895405447370668), f352); - f355 = MUL_C(COEF_CONST(1.4137876276885337), f272); - y[16] = f353 + f354; - y[15] = f355 - f354; - f358 = f278 + f276; - f359 = MUL_F(FRAC_CONST(0.1731148370459795), f278); - f360 = MUL_F(FRAC_CONST(0.6152315905806268), f358); - f361 = MUL_C(COEF_CONST(1.4035780182072330), f276); - y[18] = f359 + f360; - y[13] = f361 - f360; - f364 = f282 + f280; - f365 = MUL_F(FRAC_CONST(0.3098559453626100), f282); - f366 = MUL_F(FRAC_CONST(0.5349976198870972), f364); - f367 = MUL_C(COEF_CONST(1.3798511851368043), f280); - y[20] = f365 + f366; - y[11] = f367 - f366; - f370 = f286 + f284; - f371 = MUL_F(FRAC_CONST(0.4436129715409088), f286); - f372 = MUL_F(FRAC_CONST(0.4496113296546065), f370); - f373 = MUL_C(COEF_CONST(1.3428356308501219), f284); - y[22] = f371 + f372; - y[9] = f373 - f372; - f376 = f290 + f288; - f377 = MUL_F(FRAC_CONST(0.5730977622997509), f290); - f378 = MUL_F(FRAC_CONST(0.3598950365349881), f376); - f379 = MUL_C(COEF_CONST(1.2928878353697271), f288); - y[24] = f377 + f378; - y[7] = f379 - f378; - f382 = f294 + f292; - f383 = MUL_F(FRAC_CONST(0.6970633083205415), f294); - f384 = MUL_F(FRAC_CONST(0.2667127574748984), f382); - f385 = MUL_C(COEF_CONST(1.2304888232703382), f292); - y[26] = f383 + f384; - y[5] = f385 - f384; - f388 = f298 + f296; - f389 = MUL_F(FRAC_CONST(0.8143157536286401), f298); - f390 = MUL_F(FRAC_CONST(0.1709618887603012), f388); - f391 = MUL_C(COEF_CONST(1.1562395311492424), f296); - y[28] = f389 + f390; - y[3] = f391 - f390; - f394 = f302 + f300; - f395 = MUL_F(FRAC_CONST(0.9237258930790228), f302); - f396 = MUL_F(FRAC_CONST(0.0735645635996674), f394); - f397 = MUL_C(COEF_CONST(1.0708550202783576), f300); - y[30] = f395 + f396; - y[1] = f397 - f396; -} - -#ifdef SBR_LOW_POWER - -void DCT2_16_unscaled(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10; - real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20; - real_t f21, f22, f23, f24, f25, f26, f27, f28, f31, f32; - real_t f33, f34, f37, f38, f39, f40, f41, f42, f43, f44; - real_t f45, f46, f47, f48, f49, f51, f53, f54, f57, f58; - real_t f59, f60, f61, f62, f63, f64, f65, f66, f67, f68; - real_t f69, f70, f71, f72, f73, f74, f75, f76, f77, f78; - real_t f79, f80, f81, f82, f83, f84, f85, f86, f87, f88; - real_t f89, f90, f91, f92, f95, f96, f97, f98, f101, f102; - real_t f103, f104, f107, f108, f109, f110; - - f0 = x[0] - x[15]; - f1 = x[0] + x[15]; - f2 = x[1] - x[14]; - f3 = x[1] + x[14]; - f4 = x[2] - x[13]; - f5 = x[2] + x[13]; - f6 = x[3] - x[12]; - f7 = x[3] + x[12]; - f8 = x[4] - x[11]; - f9 = x[4] + x[11]; - f10 = x[5] - x[10]; - f11 = x[5] + x[10]; - f12 = x[6] - x[9]; - f13 = x[6] + x[9]; - f14 = x[7] - x[8]; - f15 = x[7] + x[8]; - f16 = f1 - f15; - f17 = f1 + f15; - f18 = f3 - f13; - f19 = f3 + f13; - f20 = f5 - f11; - f21 = f5 + f11; - f22 = f7 - f9; - f23 = f7 + f9; - f24 = f17 - f23; - f25 = f17 + f23; - f26 = f19 - f21; - f27 = f19 + f21; - f28 = f25 - f27; - y[0] = f25 + f27; - y[8] = MUL_F(f28, FRAC_CONST(0.7071067811865476)); - f31 = f24 + f26; - f32 = MUL_C(f24, COEF_CONST(1.3065629648763766)); - f33 = MUL_F(f31, FRAC_CONST(-0.9238795325112866)); - f34 = MUL_F(f26, FRAC_CONST(-0.5411961001461967)); - y[12] = f32 + f33; - y[4] = f34 - f33; - f37 = f16 + f22; - f38 = MUL_C(f16, COEF_CONST(1.1758756024193588)); - f39 = MUL_F(f37, FRAC_CONST(-0.9807852804032304)); - f40 = MUL_F(f22, FRAC_CONST(-0.7856949583871021)); - f41 = f38 + f39; - f42 = f40 - f39; - f43 = f18 + f20; - f44 = MUL_C(f18, COEF_CONST(1.3870398453221473)); - f45 = MUL_F(f43, FRAC_CONST(-0.8314696123025455)); - f46 = MUL_F(f20, FRAC_CONST(-0.2758993792829436)); - f47 = f44 + f45; - f48 = f46 - f45; - f49 = f42 - f48; - y[2] = f42 + f48; - f51 = MUL_F(f49, FRAC_CONST(0.7071067811865476)); - y[14] = f41 - f47; - f53 = f41 + f47; - f54 = MUL_F(f53, FRAC_CONST(0.7071067811865476)); - y[10] = f51 - f54; - y[6] = f51 + f54; - f57 = f2 - f4; - f58 = f2 + f4; - f59 = f6 - f8; - f60 = f6 + f8; - f61 = f10 - f12; - f62 = f10 + f12; - f63 = MUL_F(f60, FRAC_CONST(0.7071067811865476)); - f64 = f0 - f63; - f65 = f0 + f63; - f66 = f58 + f62; - f67 = MUL_C(f58, COEF_CONST(1.3065629648763766)); - f68 = MUL_F(f66, FRAC_CONST(-0.9238795325112866)); - f69 = MUL_F(f62, FRAC_CONST(-0.5411961001461967)); - f70 = f67 + f68; - f71 = f69 - f68; - f72 = f65 - f71; - f73 = f65 + f71; - f74 = f64 - f70; - f75 = f64 + f70; - f76 = MUL_F(f59, FRAC_CONST(0.7071067811865476)); - f77 = f14 - f76; - f78 = f14 + f76; - f79 = f61 + f57; - f80 = MUL_C(f61, COEF_CONST(1.3065629648763766)); - f81 = MUL_F(f79, FRAC_CONST(-0.9238795325112866)); - f82 = MUL_F(f57, FRAC_CONST(-0.5411961001461967)); - f83 = f80 + f81; - f84 = f82 - f81; - f85 = f78 - f84; - f86 = f78 + f84; - f87 = f77 - f83; - f88 = f77 + f83; - f89 = f86 + f73; - f90 = MUL_F(f86, FRAC_CONST(-0.8971675863426361)); - f91 = MUL_F(f89, FRAC_CONST(0.9951847266721968)); - f92 = MUL_C(f73, COEF_CONST(1.0932018670017576)); - y[1] = f90 + f91; - y[15] = f92 - f91; - f95 = f75 - f88; - f96 = MUL_F(f88, FRAC_CONST(-0.6666556584777466)); - f97 = MUL_F(f95, FRAC_CONST(0.9569403357322089)); - f98 = MUL_C(f75, COEF_CONST(1.2472250129866713)); - y[3] = f97 - f96; - y[13] = f98 - f97; - f101 = f87 + f74; - f102 = MUL_F(f87, FRAC_CONST(-0.4105245275223571)); - f103 = MUL_F(f101, FRAC_CONST(0.8819212643483549)); - f104 = MUL_C(f74, COEF_CONST(1.3533180011743529)); - y[5] = f102 + f103; - y[11] = f104 - f103; - f107 = f72 - f85; - f108 = MUL_F(f85, FRAC_CONST(-0.1386171691990915)); - f109 = MUL_F(f107, FRAC_CONST(0.7730104533627370)); - f110 = MUL_C(f72, COEF_CONST(1.4074037375263826)); - y[7] = f109 - f108; - y[9] = f110 - f109; -} - -void DCT4_16(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10; - real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20; - real_t f21, f22, f23, f24, f25, f26, f27, f28, f29, f30; - real_t f31, f32, f33, f34, f35, f36, f37, f38, f39, f40; - real_t f41, f42, f43, f44, f45, f46, f47, f48, f49, f50; - real_t f51, f52, f53, f54, f55, f56, f57, f58, f59, f60; - real_t f61, f62, f63, f64, f65, f66, f67, f68, f69, f70; - real_t f71, f72, f73, f74, f75, f76, f77, f78, f79, f80; - real_t f81, f82, f83, f84, f85, f86, f87, f88, f89, f90; - real_t f91, f92, f93, f94, f95, f96, f97, f98, f99, f100; - real_t f101, f102, f103, f104, f105, f106, f107, f108, f109, f110; - real_t f111, f112, f113, f114, f115, f116, f117, f118, f119, f120; - real_t f121, f122, f123, f124, f125, f126, f127, f128, f130, f132; - real_t f134, f136, f138, f140, f142, f144, f145, f148, f149, f152; - real_t f153, f156, f157; - - f0 = x[0] + x[15]; - f1 = MUL_C(COEF_CONST(1.0478631305325901), x[0]); - f2 = MUL_F(FRAC_CONST(-0.9987954562051724), f0); - f3 = MUL_F(FRAC_CONST(-0.9497277818777548), x[15]); - f4 = f1 + f2; - f5 = f3 - f2; - f6 = x[2] + x[13]; - f7 = MUL_C(COEF_CONST(1.2130114330978077), x[2]); - f8 = MUL_F(FRAC_CONST(-0.9700312531945440), f6); - f9 = MUL_F(FRAC_CONST(-0.7270510732912803), x[13]); - f10 = f7 + f8; - f11 = f9 - f8; - f12 = x[4] + x[11]; - f13 = MUL_C(COEF_CONST(1.3315443865537255), x[4]); - f14 = MUL_F(FRAC_CONST(-0.9039892931234433), f12); - f15 = MUL_F(FRAC_CONST(-0.4764341996931612), x[11]); - f16 = f13 + f14; - f17 = f15 - f14; - f18 = x[6] + x[9]; - f19 = MUL_C(COEF_CONST(1.3989068359730781), x[6]); - f20 = MUL_F(FRAC_CONST(-0.8032075314806453), f18); - f21 = MUL_F(FRAC_CONST(-0.2075082269882124), x[9]); - f22 = f19 + f20; - f23 = f21 - f20; - f24 = x[8] + x[7]; - f25 = MUL_C(COEF_CONST(1.4125100802019777), x[8]); - f26 = MUL_F(FRAC_CONST(-0.6715589548470187), f24); - f27 = MUL_F(FRAC_CONST(0.0693921705079402), x[7]); - f28 = f25 + f26; - f29 = f27 - f26; - f30 = x[10] + x[5]; - f31 = MUL_C(COEF_CONST(1.3718313541934939), x[10]); - f32 = MUL_F(FRAC_CONST(-0.5141027441932219), f30); - f33 = MUL_F(FRAC_CONST(0.3436258658070501), x[5]); - f34 = f31 + f32; - f35 = f33 - f32; - f36 = x[12] + x[3]; - f37 = MUL_C(COEF_CONST(1.2784339185752409), x[12]); - f38 = MUL_F(FRAC_CONST(-0.3368898533922200), f36); - f39 = MUL_F(FRAC_CONST(0.6046542117908008), x[3]); - f40 = f37 + f38; - f41 = f39 - f38; - f42 = x[14] + x[1]; - f43 = MUL_C(COEF_CONST(1.1359069844201433), x[14]); - f44 = MUL_F(FRAC_CONST(-0.1467304744553624), f42); - f45 = MUL_F(FRAC_CONST(0.8424460355094185), x[1]); - f46 = f43 + f44; - f47 = f45 - f44; - f48 = f5 - f29; - f49 = f5 + f29; - f50 = f4 - f28; - f51 = f4 + f28; - f52 = f11 - f35; - f53 = f11 + f35; - f54 = f10 - f34; - f55 = f10 + f34; - f56 = f17 - f41; - f57 = f17 + f41; - f58 = f16 - f40; - f59 = f16 + f40; - f60 = f23 - f47; - f61 = f23 + f47; - f62 = f22 - f46; - f63 = f22 + f46; - f64 = f48 + f50; - f65 = MUL_C(COEF_CONST(1.1758756024193588), f48); - f66 = MUL_F(FRAC_CONST(-0.9807852804032304), f64); - f67 = MUL_F(FRAC_CONST(-0.7856949583871021), f50); - f68 = f65 + f66; - f69 = f67 - f66; - f70 = f52 + f54; - f71 = MUL_C(COEF_CONST(1.3870398453221475), f52); - f72 = MUL_F(FRAC_CONST(-0.5555702330196022), f70); - f73 = MUL_F(FRAC_CONST(0.2758993792829431), f54); - f74 = f71 + f72; - f75 = f73 - f72; - f76 = f56 + f58; - f77 = MUL_F(FRAC_CONST(0.7856949583871022), f56); - f78 = MUL_F(FRAC_CONST(0.1950903220161283), f76); - f79 = MUL_C(COEF_CONST(1.1758756024193586), f58); - f80 = f77 + f78; - f81 = f79 - f78; - f82 = f60 + f62; - f83 = MUL_F(FRAC_CONST(-0.2758993792829430), f60); - f84 = MUL_F(FRAC_CONST(0.8314696123025452), f82); - f85 = MUL_C(COEF_CONST(1.3870398453221475), f62); - f86 = f83 + f84; - f87 = f85 - f84; - f88 = f49 - f57; - f89 = f49 + f57; - f90 = f51 - f59; - f91 = f51 + f59; - f92 = f53 - f61; - f93 = f53 + f61; - f94 = f55 - f63; - f95 = f55 + f63; - f96 = f69 - f81; - f97 = f69 + f81; - f98 = f68 - f80; - f99 = f68 + f80; - f100 = f75 - f87; - f101 = f75 + f87; - f102 = f74 - f86; - f103 = f74 + f86; - f104 = f88 + f90; - f105 = MUL_C(COEF_CONST(1.3065629648763766), f88); - f106 = MUL_F(FRAC_CONST(-0.9238795325112866), f104); - f107 = MUL_F(FRAC_CONST(-0.5411961001461967), f90); - f108 = f105 + f106; - f109 = f107 - f106; - f110 = f92 + f94; - f111 = MUL_F(FRAC_CONST(0.5411961001461969), f92); - f112 = MUL_F(FRAC_CONST(0.3826834323650898), f110); - f113 = MUL_C(COEF_CONST(1.3065629648763766), f94); - f114 = f111 + f112; - f115 = f113 - f112; - f116 = f96 + f98; - f117 = MUL_C(COEF_CONST(1.3065629648763766), f96); - f118 = MUL_F(FRAC_CONST(-0.9238795325112866), f116); - f119 = MUL_F(FRAC_CONST(-0.5411961001461967), f98); - f120 = f117 + f118; - f121 = f119 - f118; - f122 = f100 + f102; - f123 = MUL_F(FRAC_CONST(0.5411961001461969), f100); - f124 = MUL_F(FRAC_CONST(0.3826834323650898), f122); - f125 = MUL_C(COEF_CONST(1.3065629648763766), f102); - f126 = f123 + f124; - f127 = f125 - f124; - f128 = f89 - f93; - y[0] = f89 + f93; - f130 = f91 - f95; - y[15] = f91 + f95; - f132 = f109 - f115; - y[3] = f109 + f115; - f134 = f108 - f114; - y[12] = f108 + f114; - f136 = f97 - f101; - y[1] = f97 + f101; - f138 = f99 - f103; - y[14] = f99 + f103; - f140 = f121 - f127; - y[2] = f121 + f127; - f142 = f120 - f126; - y[13] = f120 + f126; - f144 = f128 - f130; - f145 = f128 + f130; - y[8] = MUL_F(FRAC_CONST(0.7071067811865474), f144); - y[7] = MUL_F(FRAC_CONST(0.7071067811865474), f145); - f148 = f132 - f134; - f149 = f132 + f134; - y[11] = MUL_F(FRAC_CONST(0.7071067811865474), f148); - y[4] = MUL_F(FRAC_CONST(0.7071067811865474), f149); - f152 = f136 - f138; - f153 = f136 + f138; - y[9] = MUL_F(FRAC_CONST(0.7071067811865474), f152); - y[6] = MUL_F(FRAC_CONST(0.7071067811865474), f153); - f156 = f140 - f142; - f157 = f140 + f142; - y[10] = MUL_F(FRAC_CONST(0.7071067811865474), f156); - y[5] = MUL_F(FRAC_CONST(0.7071067811865474), f157); -} - -void DCT3_32_unscaled(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10; - real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20; - real_t f21, f22, f23, f24, f25, f26, f27, f28, f29, f30; - real_t f31, f32, f33, f34, f35, f36, f37, f38, f39, f40; - real_t f41, f42, f43, f44, f45, f46, f47, f48, f49, f50; - real_t f51, f52, f53, f54, f55, f56, f57, f58, f59, f60; - real_t f61, f62, f63, f64, f65, f66, f67, f68, f69, f70; - real_t f71, f72, f73, f74, f75, f76, f77, f78, f79, f80; - real_t f81, f82, f83, f84, f85, f86, f87, f88, f89, f90; - real_t f91, f92, f93, f94, f95, f96, f97, f98, f99, f100; - real_t f101, f102, f103, f104, f105, f106, f107, f108, f109, f110; - real_t f111, f112, f113, f114, f115, f116, f117, f118, f119, f120; - real_t f121, f122, f123, f124, f125, f126, f127, f128, f129, f130; - real_t f131, f132, f133, f134, f135, f136, f137, f138, f139, f140; - real_t f141, f142, f143, f144, f145, f146, f147, f148, f149, f150; - real_t f151, f152, f153, f154, f155, f156, f157, f158, f159, f160; - real_t f161, f162, f163, f164, f165, f166, f167, f168, f169, f170; - real_t f171, f172, f173, f174, f175, f176, f177, f178, f179, f180; - real_t f181, f182, f183, f184, f185, f186, f187, f188, f189, f190; - real_t f191, f192, f193, f194, f195, f196, f197, f198, f199, f200; - real_t f201, f202, f203, f204, f205, f206, f207, f208, f209, f210; - real_t f211, f212, f213, f214, f215, f216, f217, f218, f219, f220; - real_t f221, f222, f223, f224, f225, f226, f227, f228, f229, f230; - real_t f231, f232, f233, f234, f235, f236, f237, f238, f239, f240; - real_t f241, f242, f243, f244, f245, f246, f247, f248, f249, f250; - real_t f251, f252, f253, f254, f255, f256, f257, f258, f259, f260; - real_t f261, f262, f263, f264, f265, f266, f267, f268, f269, f270; - real_t f271, f272; - - f0 = MUL_F(x[16], FRAC_CONST(0.7071067811865476)); - f1 = x[0] - f0; - f2 = x[0] + f0; - f3 = x[8] + x[24]; - f4 = MUL_C(x[8], COEF_CONST(1.3065629648763766)); - f5 = MUL_F(f3, FRAC_CONST((-0.9238795325112866))); - f6 = MUL_F(x[24], FRAC_CONST((-0.5411961001461967))); - f7 = f4 + f5; - f8 = f6 - f5; - f9 = f2 - f8; - f10 = f2 + f8; - f11 = f1 - f7; - f12 = f1 + f7; - f13 = x[4] + x[28]; - f14 = MUL_C(x[4], COEF_CONST(1.1758756024193588)); - f15 = MUL_F(f13, FRAC_CONST((-0.9807852804032304))); - f16 = MUL_F(x[28], FRAC_CONST((-0.7856949583871021))); - f17 = f14 + f15; - f18 = f16 - f15; - f19 = x[12] + x[20]; - f20 = MUL_C(x[12], COEF_CONST(1.3870398453221473)); - f21 = MUL_F(f19, FRAC_CONST((-0.8314696123025455))); - f22 = MUL_F(x[20], FRAC_CONST((-0.2758993792829436))); - f23 = f20 + f21; - f24 = f22 - f21; - f25 = f18 - f24; - f26 = f18 + f24; - f27 = MUL_F(f25, FRAC_CONST(0.7071067811865476)); - f28 = f17 - f23; - f29 = f17 + f23; - f30 = MUL_F(f29, FRAC_CONST(0.7071067811865476)); - f31 = f27 - f30; - f32 = f27 + f30; - f33 = f10 - f26; - f34 = f10 + f26; - f35 = f12 - f32; - f36 = f12 + f32; - f37 = f11 - f31; - f38 = f11 + f31; - f39 = f9 - f28; - f40 = f9 + f28; - f41 = x[2] + x[30]; - f42 = MUL_C(x[2], COEF_CONST(1.0932018670017569)); - f43 = MUL_F(f41, FRAC_CONST((-0.9951847266721969))); - f44 = MUL_F(x[30], FRAC_CONST((-0.8971675863426368))); - f45 = f42 + f43; - f46 = f44 - f43; - f47 = x[6] + x[26]; - f48 = MUL_C(x[6], COEF_CONST(1.2472250129866711)); - f49 = MUL_F(f47, FRAC_CONST((-0.9569403357322089))); - f50 = MUL_F(x[26], FRAC_CONST((-0.6666556584777469))); - f51 = f48 + f49; - f52 = f50 - f49; - f53 = x[10] + x[22]; - f54 = MUL_C(x[10], COEF_CONST(1.3533180011743526)); - f55 = MUL_F(f53, FRAC_CONST((-0.8819212643483551))); - f56 = MUL_F(x[22], FRAC_CONST((-0.4105245275223575))); - f57 = f54 + f55; - f58 = f56 - f55; - f59 = x[14] + x[18]; - f60 = MUL_C(x[14], COEF_CONST(1.4074037375263826)); - f61 = MUL_F(f59, FRAC_CONST((-0.7730104533627369))); - f62 = MUL_F(x[18], FRAC_CONST((-0.1386171691990913))); - f63 = f60 + f61; - f64 = f62 - f61; - f65 = f46 - f64; - f66 = f46 + f64; - f67 = f52 - f58; - f68 = f52 + f58; - f69 = f66 - f68; - f70 = f66 + f68; - f71 = MUL_F(f69, FRAC_CONST(0.7071067811865476)); - f72 = f65 + f67; - f73 = MUL_C(f65, COEF_CONST(1.3065629648763766)); - f74 = MUL_F(f72, FRAC_CONST((-0.9238795325112866))); - f75 = MUL_F(f67, FRAC_CONST((-0.5411961001461967))); - f76 = f73 + f74; - f77 = f75 - f74; - f78 = f45 - f63; - f79 = f45 + f63; - f80 = f51 - f57; - f81 = f51 + f57; - f82 = f79 + f81; - f83 = MUL_C(f79, COEF_CONST(1.3065629648763770)); - f84 = MUL_F(f82, FRAC_CONST((-0.3826834323650904))); - f85 = MUL_F(f81, FRAC_CONST(0.5411961001461961)); - f86 = f83 + f84; - f87 = f85 - f84; - f88 = f78 - f80; - f89 = f78 + f80; - f90 = MUL_F(f89, FRAC_CONST(0.7071067811865476)); - f91 = f77 - f87; - f92 = f77 + f87; - f93 = f71 - f90; - f94 = f71 + f90; - f95 = f76 - f86; - f96 = f76 + f86; - f97 = f34 - f70; - f98 = f34 + f70; - f99 = f36 - f92; - f100 = f36 + f92; - f101 = f38 - f91; - f102 = f38 + f91; - f103 = f40 - f94; - f104 = f40 + f94; - f105 = f39 - f93; - f106 = f39 + f93; - f107 = f37 - f96; - f108 = f37 + f96; - f109 = f35 - f95; - f110 = f35 + f95; - f111 = f33 - f88; - f112 = f33 + f88; - f113 = x[1] + x[31]; - f114 = MUL_C(x[1], COEF_CONST(1.0478631305325901)); - f115 = MUL_F(f113, FRAC_CONST((-0.9987954562051724))); - f116 = MUL_F(x[31], FRAC_CONST((-0.9497277818777548))); - f117 = f114 + f115; - f118 = f116 - f115; - f119 = x[5] + x[27]; - f120 = MUL_C(x[5], COEF_CONST(1.2130114330978077)); - f121 = MUL_F(f119, FRAC_CONST((-0.9700312531945440))); - f122 = MUL_F(x[27], FRAC_CONST((-0.7270510732912803))); - f123 = f120 + f121; - f124 = f122 - f121; - f125 = x[9] + x[23]; - f126 = MUL_C(x[9], COEF_CONST(1.3315443865537255)); - f127 = MUL_F(f125, FRAC_CONST((-0.9039892931234433))); - f128 = MUL_F(x[23], FRAC_CONST((-0.4764341996931612))); - f129 = f126 + f127; - f130 = f128 - f127; - f131 = x[13] + x[19]; - f132 = MUL_C(x[13], COEF_CONST(1.3989068359730781)); - f133 = MUL_F(f131, FRAC_CONST((-0.8032075314806453))); - f134 = MUL_F(x[19], FRAC_CONST((-0.2075082269882124))); - f135 = f132 + f133; - f136 = f134 - f133; - f137 = x[17] + x[15]; - f138 = MUL_C(x[17], COEF_CONST(1.4125100802019777)); - f139 = MUL_F(f137, FRAC_CONST((-0.6715589548470187))); - f140 = MUL_F(x[15], FRAC_CONST(0.0693921705079402)); - f141 = f138 + f139; - f142 = f140 - f139; - f143 = x[21] + x[11]; - f144 = MUL_C(x[21], COEF_CONST(1.3718313541934939)); - f145 = MUL_F(f143, FRAC_CONST((-0.5141027441932219))); - f146 = MUL_F(x[11], FRAC_CONST(0.3436258658070501)); - f147 = f144 + f145; - f148 = f146 - f145; - f149 = x[25] + x[7]; - f150 = MUL_C(x[25], COEF_CONST(1.2784339185752409)); - f151 = MUL_F(f149, FRAC_CONST((-0.3368898533922200))); - f152 = MUL_F(x[7], FRAC_CONST(0.6046542117908008)); - f153 = f150 + f151; - f154 = f152 - f151; - f155 = x[29] + x[3]; - f156 = MUL_C(x[29], COEF_CONST(1.1359069844201433)); - f157 = MUL_F(f155, FRAC_CONST((-0.1467304744553624))); - f158 = MUL_F(x[3], FRAC_CONST(0.8424460355094185)); - f159 = f156 + f157; - f160 = f158 - f157; - f161 = f118 - f142; - f162 = f118 + f142; - f163 = f117 - f141; - f164 = f117 + f141; - f165 = f124 - f148; - f166 = f124 + f148; - f167 = f123 - f147; - f168 = f123 + f147; - f169 = f130 - f154; - f170 = f130 + f154; - f171 = f129 - f153; - f172 = f129 + f153; - f173 = f136 - f160; - f174 = f136 + f160; - f175 = f135 - f159; - f176 = f135 + f159; - f177 = f161 + f163; - f178 = MUL_C(f161, COEF_CONST(1.1758756024193588)); - f179 = MUL_F(f177, FRAC_CONST((-0.9807852804032304))); - f180 = MUL_F(f163, FRAC_CONST((-0.7856949583871021))); - f181 = f178 + f179; - f182 = f180 - f179; - f183 = f165 + f167; - f184 = MUL_C(f165, COEF_CONST(1.3870398453221475)); - f185 = MUL_F(f183, FRAC_CONST((-0.5555702330196022))); - f186 = MUL_F(f167, FRAC_CONST(0.2758993792829431)); - f187 = f184 + f185; - f188 = f186 - f185; - f189 = f169 + f171; - f190 = MUL_F(f169, FRAC_CONST(0.7856949583871022)); - f191 = MUL_F(f189, FRAC_CONST(0.1950903220161283)); - f192 = MUL_C(f171, COEF_CONST(1.1758756024193586)); - f193 = f190 + f191; - f194 = f192 - f191; - f195 = f173 + f175; - f196 = MUL_F(f173, FRAC_CONST((-0.2758993792829430))); - f197 = MUL_F(f195, FRAC_CONST(0.8314696123025452)); - f198 = MUL_C(f175, COEF_CONST(1.3870398453221475)); - f199 = f196 + f197; - f200 = f198 - f197; - f201 = f162 - f170; - f202 = f162 + f170; - f203 = f164 - f172; - f204 = f164 + f172; - f205 = f166 - f174; - f206 = f166 + f174; - f207 = f168 - f176; - f208 = f168 + f176; - f209 = f182 - f194; - f210 = f182 + f194; - f211 = f181 - f193; - f212 = f181 + f193; - f213 = f188 - f200; - f214 = f188 + f200; - f215 = f187 - f199; - f216 = f187 + f199; - f217 = f201 + f203; - f218 = MUL_C(f201, COEF_CONST(1.3065629648763766)); - f219 = MUL_F(f217, FRAC_CONST((-0.9238795325112866))); - f220 = MUL_F(f203, FRAC_CONST((-0.5411961001461967))); - f221 = f218 + f219; - f222 = f220 - f219; - f223 = f205 + f207; - f224 = MUL_F(f205, FRAC_CONST(0.5411961001461969)); - f225 = MUL_F(f223, FRAC_CONST(0.3826834323650898)); - f226 = MUL_C(f207, COEF_CONST(1.3065629648763766)); - f227 = f224 + f225; - f228 = f226 - f225; - f229 = f209 + f211; - f230 = MUL_C(f209, COEF_CONST(1.3065629648763766)); - f231 = MUL_F(f229, FRAC_CONST((-0.9238795325112866))); - f232 = MUL_F(f211, FRAC_CONST((-0.5411961001461967))); - f233 = f230 + f231; - f234 = f232 - f231; - f235 = f213 + f215; - f236 = MUL_F(f213, FRAC_CONST(0.5411961001461969)); - f237 = MUL_F(f235, FRAC_CONST(0.3826834323650898)); - f238 = MUL_C(f215, COEF_CONST(1.3065629648763766)); - f239 = f236 + f237; - f240 = f238 - f237; - f241 = f202 - f206; - f242 = f202 + f206; - f243 = f204 - f208; - f244 = f204 + f208; - f245 = f222 - f228; - f246 = f222 + f228; - f247 = f221 - f227; - f248 = f221 + f227; - f249 = f210 - f214; - f250 = f210 + f214; - f251 = f212 - f216; - f252 = f212 + f216; - f253 = f234 - f240; - f254 = f234 + f240; - f255 = f233 - f239; - f256 = f233 + f239; - f257 = f241 - f243; - f258 = f241 + f243; - f259 = MUL_F(f257, FRAC_CONST(0.7071067811865474)); - f260 = MUL_F(f258, FRAC_CONST(0.7071067811865474)); - f261 = f245 - f247; - f262 = f245 + f247; - f263 = MUL_F(f261, FRAC_CONST(0.7071067811865474)); - f264 = MUL_F(f262, FRAC_CONST(0.7071067811865474)); - f265 = f249 - f251; - f266 = f249 + f251; - f267 = MUL_F(f265, FRAC_CONST(0.7071067811865474)); - f268 = MUL_F(f266, FRAC_CONST(0.7071067811865474)); - f269 = f253 - f255; - f270 = f253 + f255; - f271 = MUL_F(f269, FRAC_CONST(0.7071067811865474)); - f272 = MUL_F(f270, FRAC_CONST(0.7071067811865474)); - y[31] = f98 - f242; - y[0] = f98 + f242; - y[30] = f100 - f250; - y[1] = f100 + f250; - y[29] = f102 - f254; - y[2] = f102 + f254; - y[28] = f104 - f246; - y[3] = f104 + f246; - y[27] = f106 - f264; - y[4] = f106 + f264; - y[26] = f108 - f272; - y[5] = f108 + f272; - y[25] = f110 - f268; - y[6] = f110 + f268; - y[24] = f112 - f260; - y[7] = f112 + f260; - y[23] = f111 - f259; - y[8] = f111 + f259; - y[22] = f109 - f267; - y[9] = f109 + f267; - y[21] = f107 - f271; - y[10] = f107 + f271; - y[20] = f105 - f263; - y[11] = f105 + f263; - y[19] = f103 - f248; - y[12] = f103 + f248; - y[18] = f101 - f256; - y[13] = f101 + f256; - y[17] = f99 - f252; - y[14] = f99 + f252; - y[16] = f97 - f244; - y[15] = f97 + f244; -} - -void DCT2_32_unscaled(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10; - real_t f11, f12, f13, f14, f15, f16, f17, f18, f19, f20; - real_t f21, f22, f23, f24, f25, f26, f27, f28, f29, f30; - real_t f31, f32, f33, f34, f35, f36, f37, f38, f39, f40; - real_t f41, f42, f43, f44, f45, f46, f47, f48, f49, f50; - real_t f51, f52, f53, f54, f55, f56, f57, f58, f59, f60; - real_t f63, f64, f65, f66, f69, f70, f71, f72, f73, f74; - real_t f75, f76, f77, f78, f79, f80, f81, f83, f85, f86; - real_t f89, f90, f91, f92, f93, f94, f95, f96, f97, f98; - real_t f99, f100, f101, f102, f103, f104, f105, f106, f107, f108; - real_t f109, f110, f111, f112, f113, f114, f115, f116, f117, f118; - real_t f119, f120, f121, f122, f123, f124, f127, f128, f129, f130; - real_t f133, f134, f135, f136, f139, f140, f141, f142, f145, f146; - real_t f147, f148, f149, f150, f151, f152, f153, f154, f155, f156; - real_t f157, f158, f159, f160, f161, f162, f163, f164, f165, f166; - real_t f167, f168, f169, f170, f171, f172, f173, f174, f175, f176; - real_t f177, f178, f179, f180, f181, f182, f183, f184, f185, f186; - real_t f187, f188, f189, f190, f191, f192, f193, f194, f195, f196; - real_t f197, f198, f199, f200, f201, f202, f203, f204, f205, f206; - real_t f207, f208, f209, f210, f211, f212, f213, f214, f215, f216; - real_t f217, f218, f219, f220, f221, f222, f223, f224, f225, f226; - real_t f227, f228, f229, f230, f231, f232, f233, f234, f235, f236; - real_t f237, f238, f239, f240, f241, f242, f243, f244, f247, f248; - real_t f249, f250, f253, f254, f255, f256, f259, f260, f261, f262; - real_t f265, f266, f267, f268, f271, f272, f273, f274, f277, f278; - real_t f279, f280, f283, f284, f285, f286; - - f0 = x[0] - x[31]; - f1 = x[0] + x[31]; - f2 = x[1] - x[30]; - f3 = x[1] + x[30]; - f4 = x[2] - x[29]; - f5 = x[2] + x[29]; - f6 = x[3] - x[28]; - f7 = x[3] + x[28]; - f8 = x[4] - x[27]; - f9 = x[4] + x[27]; - f10 = x[5] - x[26]; - f11 = x[5] + x[26]; - f12 = x[6] - x[25]; - f13 = x[6] + x[25]; - f14 = x[7] - x[24]; - f15 = x[7] + x[24]; - f16 = x[8] - x[23]; - f17 = x[8] + x[23]; - f18 = x[9] - x[22]; - f19 = x[9] + x[22]; - f20 = x[10] - x[21]; - f21 = x[10] + x[21]; - f22 = x[11] - x[20]; - f23 = x[11] + x[20]; - f24 = x[12] - x[19]; - f25 = x[12] + x[19]; - f26 = x[13] - x[18]; - f27 = x[13] + x[18]; - f28 = x[14] - x[17]; - f29 = x[14] + x[17]; - f30 = x[15] - x[16]; - f31 = x[15] + x[16]; - f32 = f1 - f31; - f33 = f1 + f31; - f34 = f3 - f29; - f35 = f3 + f29; - f36 = f5 - f27; - f37 = f5 + f27; - f38 = f7 - f25; - f39 = f7 + f25; - f40 = f9 - f23; - f41 = f9 + f23; - f42 = f11 - f21; - f43 = f11 + f21; - f44 = f13 - f19; - f45 = f13 + f19; - f46 = f15 - f17; - f47 = f15 + f17; - f48 = f33 - f47; - f49 = f33 + f47; - f50 = f35 - f45; - f51 = f35 + f45; - f52 = f37 - f43; - f53 = f37 + f43; - f54 = f39 - f41; - f55 = f39 + f41; - f56 = f49 - f55; - f57 = f49 + f55; - f58 = f51 - f53; - f59 = f51 + f53; - f60 = f57 - f59; - y[0] = f57 + f59; - y[16] = MUL_F(FRAC_CONST(0.7071067811865476), f60); - f63 = f56 + f58; - f64 = MUL_C(COEF_CONST(1.3065629648763766), f56); - f65 = MUL_F(FRAC_CONST(-0.9238795325112866), f63); - f66 = MUL_F(FRAC_CONST(-0.5411961001461967), f58); - y[24] = f64 + f65; - y[8] = f66 - f65; - f69 = f48 + f54; - f70 = MUL_C(COEF_CONST(1.1758756024193588), f48); - f71 = MUL_F(FRAC_CONST(-0.9807852804032304), f69); - f72 = MUL_F(FRAC_CONST(-0.7856949583871021), f54); - f73 = f70 + f71; - f74 = f72 - f71; - f75 = f50 + f52; - f76 = MUL_C(COEF_CONST(1.3870398453221473), f50); - f77 = MUL_F(FRAC_CONST(-0.8314696123025455), f75); - f78 = MUL_F(FRAC_CONST(-0.2758993792829436), f52); - f79 = f76 + f77; - f80 = f78 - f77; - f81 = f74 - f80; - y[4] = f74 + f80; - f83 = MUL_F(FRAC_CONST(0.7071067811865476), f81); - y[28] = f73 - f79; - f85 = f73 + f79; - f86 = MUL_F(FRAC_CONST(0.7071067811865476), f85); - y[20] = f83 - f86; - y[12] = f83 + f86; - f89 = f34 - f36; - f90 = f34 + f36; - f91 = f38 - f40; - f92 = f38 + f40; - f93 = f42 - f44; - f94 = f42 + f44; - f95 = MUL_F(FRAC_CONST(0.7071067811865476), f92); - f96 = f32 - f95; - f97 = f32 + f95; - f98 = f90 + f94; - f99 = MUL_C(COEF_CONST(1.3065629648763766), f90); - f100 = MUL_F(FRAC_CONST(-0.9238795325112866), f98); - f101 = MUL_F(FRAC_CONST(-0.5411961001461967), f94); - f102 = f99 + f100; - f103 = f101 - f100; - f104 = f97 - f103; - f105 = f97 + f103; - f106 = f96 - f102; - f107 = f96 + f102; - f108 = MUL_F(FRAC_CONST(0.7071067811865476), f91); - f109 = f46 - f108; - f110 = f46 + f108; - f111 = f93 + f89; - f112 = MUL_C(COEF_CONST(1.3065629648763766), f93); - f113 = MUL_F(FRAC_CONST(-0.9238795325112866), f111); - f114 = MUL_F(FRAC_CONST(-0.5411961001461967), f89); - f115 = f112 + f113; - f116 = f114 - f113; - f117 = f110 - f116; - f118 = f110 + f116; - f119 = f109 - f115; - f120 = f109 + f115; - f121 = f118 + f105; - f122 = MUL_F(FRAC_CONST(-0.8971675863426361), f118); - f123 = MUL_F(FRAC_CONST(0.9951847266721968), f121); - f124 = MUL_C(COEF_CONST(1.0932018670017576), f105); - y[2] = f122 + f123; - y[30] = f124 - f123; - f127 = f107 - f120; - f128 = MUL_F(FRAC_CONST(-0.6666556584777466), f120); - f129 = MUL_F(FRAC_CONST(0.9569403357322089), f127); - f130 = MUL_C(COEF_CONST(1.2472250129866713), f107); - y[6] = f129 - f128; - y[26] = f130 - f129; - f133 = f119 + f106; - f134 = MUL_F(FRAC_CONST(-0.4105245275223571), f119); - f135 = MUL_F(FRAC_CONST(0.8819212643483549), f133); - f136 = MUL_C(COEF_CONST(1.3533180011743529), f106); - y[10] = f134 + f135; - y[22] = f136 - f135; - f139 = f104 - f117; - f140 = MUL_F(FRAC_CONST(-0.1386171691990915), f117); - f141 = MUL_F(FRAC_CONST(0.7730104533627370), f139); - f142 = MUL_C(COEF_CONST(1.4074037375263826), f104); - y[14] = f141 - f140; - y[18] = f142 - f141; - f145 = f2 - f4; - f146 = f2 + f4; - f147 = f6 - f8; - f148 = f6 + f8; - f149 = f10 - f12; - f150 = f10 + f12; - f151 = f14 - f16; - f152 = f14 + f16; - f153 = f18 - f20; - f154 = f18 + f20; - f155 = f22 - f24; - f156 = f22 + f24; - f157 = f26 - f28; - f158 = f26 + f28; - f159 = MUL_F(FRAC_CONST(0.7071067811865476), f152); - f160 = f0 - f159; - f161 = f0 + f159; - f162 = f148 + f156; - f163 = MUL_C(COEF_CONST(1.3065629648763766), f148); - f164 = MUL_F(FRAC_CONST(-0.9238795325112866), f162); - f165 = MUL_F(FRAC_CONST(-0.5411961001461967), f156); - f166 = f163 + f164; - f167 = f165 - f164; - f168 = f161 - f167; - f169 = f161 + f167; - f170 = f160 - f166; - f171 = f160 + f166; - f172 = f146 + f158; - f173 = MUL_C(COEF_CONST(1.1758756024193588), f146); - f174 = MUL_F(FRAC_CONST(-0.9807852804032304), f172); - f175 = MUL_F(FRAC_CONST(-0.7856949583871021), f158); - f176 = f173 + f174; - f177 = f175 - f174; - f178 = f150 + f154; - f179 = MUL_C(COEF_CONST(1.3870398453221473), f150); - f180 = MUL_F(FRAC_CONST(-0.8314696123025455), f178); - f181 = MUL_F(FRAC_CONST(-0.2758993792829436), f154); - f182 = f179 + f180; - f183 = f181 - f180; - f184 = f177 - f183; - f185 = f177 + f183; - f186 = MUL_F(FRAC_CONST(0.7071067811865476), f184); - f187 = f176 - f182; - f188 = f176 + f182; - f189 = MUL_F(FRAC_CONST(0.7071067811865476), f188); - f190 = f186 - f189; - f191 = f186 + f189; - f192 = f169 - f185; - f193 = f169 + f185; - f194 = f171 - f191; - f195 = f171 + f191; - f196 = f170 - f190; - f197 = f170 + f190; - f198 = f168 - f187; - f199 = f168 + f187; - f200 = MUL_F(FRAC_CONST(0.7071067811865476), f151); - f201 = f30 - f200; - f202 = f30 + f200; - f203 = f155 + f147; - f204 = MUL_C(COEF_CONST(1.3065629648763766), f155); - f205 = MUL_F(FRAC_CONST(-0.9238795325112866), f203); - f206 = MUL_F(FRAC_CONST(-0.5411961001461967), f147); - f207 = f204 + f205; - f208 = f206 - f205; - f209 = f202 - f208; - f210 = f202 + f208; - f211 = f201 - f207; - f212 = f201 + f207; - f213 = f157 + f145; - f214 = MUL_C(COEF_CONST(1.1758756024193588), f157); - f215 = MUL_F(FRAC_CONST(-0.9807852804032304), f213); - f216 = MUL_F(FRAC_CONST(-0.7856949583871021), f145); - f217 = f214 + f215; - f218 = f216 - f215; - f219 = f153 + f149; - f220 = MUL_C(COEF_CONST(1.3870398453221473), f153); - f221 = MUL_F(FRAC_CONST(-0.8314696123025455), f219); - f222 = MUL_F(FRAC_CONST(-0.2758993792829436), f149); - f223 = f220 + f221; - f224 = f222 - f221; - f225 = f218 - f224; - f226 = f218 + f224; - f227 = MUL_F(FRAC_CONST(0.7071067811865476), f225); - f228 = f217 - f223; - f229 = f217 + f223; - f230 = MUL_F(FRAC_CONST(0.7071067811865476), f229); - f231 = f227 - f230; - f232 = f227 + f230; - f233 = f210 - f226; - f234 = f210 + f226; - f235 = f212 - f232; - f236 = f212 + f232; - f237 = f211 - f231; - f238 = f211 + f231; - f239 = f209 - f228; - f240 = f209 + f228; - f241 = f234 + f193; - f242 = MUL_F(FRAC_CONST(-0.9497277818777543), f234); - f243 = MUL_F(FRAC_CONST(0.9987954562051724), f241); - f244 = MUL_C(COEF_CONST(1.0478631305325905), f193); - y[1] = f242 + f243; - y[31] = f244 - f243; - f247 = f195 - f236; - f248 = MUL_F(FRAC_CONST(-0.8424460355094192), f236); - f249 = MUL_F(FRAC_CONST(0.9891765099647810), f247); - f250 = MUL_C(COEF_CONST(1.1359069844201428), f195); - y[3] = f249 - f248; - y[29] = f250 - f249; - f253 = f238 + f197; - f254 = MUL_F(FRAC_CONST(-0.7270510732912801), f238); - f255 = MUL_F(FRAC_CONST(0.9700312531945440), f253); - f256 = MUL_C(COEF_CONST(1.2130114330978079), f197); - y[5] = f254 + f255; - y[27] = f256 - f255; - f259 = f199 - f240; - f260 = MUL_F(FRAC_CONST(-0.6046542117908007), f240); - f261 = MUL_F(FRAC_CONST(0.9415440651830208), f259); - f262 = MUL_C(COEF_CONST(1.2784339185752409), f199); - y[7] = f261 - f260; - y[25] = f262 - f261; - f265 = f239 + f198; - f266 = MUL_F(FRAC_CONST(-0.4764341996931611), f239); - f267 = MUL_F(FRAC_CONST(0.9039892931234433), f265); - f268 = MUL_C(COEF_CONST(1.3315443865537255), f198); - y[9] = f266 + f267; - y[23] = f268 - f267; - f271 = f196 - f237; - f272 = MUL_F(FRAC_CONST(-0.3436258658070505), f237); - f273 = MUL_F(FRAC_CONST(0.8577286100002721), f271); - f274 = MUL_C(COEF_CONST(1.3718313541934939), f196); - y[11] = f273 - f272; - y[21] = f274 - f273; - f277 = f235 + f194; - f278 = MUL_F(FRAC_CONST(-0.2075082269882114), f235); - f279 = MUL_F(FRAC_CONST(0.8032075314806448), f277); - f280 = MUL_C(COEF_CONST(1.3989068359730783), f194); - y[13] = f278 + f279; - y[19] = f280 - f279; - f283 = f192 - f233; - f284 = MUL_F(FRAC_CONST(-0.0693921705079408), f233); - f285 = MUL_F(FRAC_CONST(0.7409511253549591), f283); - f286 = MUL_C(COEF_CONST(1.4125100802019774), f192); - y[15] = f285 - f284; - y[17] = f286 - f285; -} - -#else - - -#define n 32 -#define log2n 5 - -// w_array_real[i] = cos(2*M_PI*i/32) -static const real_t w_array_real[] = { - FRAC_CONST(1.000000000000000), FRAC_CONST(0.980785279337272), - FRAC_CONST(0.923879528329380), FRAC_CONST(0.831469603195765), - FRAC_CONST(0.707106765732237), FRAC_CONST(0.555570210304169), - FRAC_CONST(0.382683402077046), FRAC_CONST(0.195090284503576), - FRAC_CONST(0.000000000000000), FRAC_CONST(-0.195090370246552), - FRAC_CONST(-0.382683482845162), FRAC_CONST(-0.555570282993553), - FRAC_CONST(-0.707106827549476), FRAC_CONST(-0.831469651765257), - FRAC_CONST(-0.923879561784627), FRAC_CONST(-0.980785296392607) -}; - -// w_array_imag[i] = sin(-2*M_PI*i/32) -static const real_t w_array_imag[] = { - FRAC_CONST(0.000000000000000), FRAC_CONST(-0.195090327375064), - FRAC_CONST(-0.382683442461104), FRAC_CONST(-0.555570246648862), - FRAC_CONST(-0.707106796640858), FRAC_CONST(-0.831469627480512), - FRAC_CONST(-0.923879545057005), FRAC_CONST(-0.980785287864940), - FRAC_CONST(-1.000000000000000), FRAC_CONST(-0.980785270809601), - FRAC_CONST(-0.923879511601754), FRAC_CONST(-0.831469578911016), - FRAC_CONST(-0.707106734823616), FRAC_CONST(-0.555570173959476), - FRAC_CONST(-0.382683361692986), FRAC_CONST(-0.195090241632088) -}; - -// FFT decimation in frequency -// 4*16*2+16=128+16=144 multiplications -// 6*16*2+10*8+4*16*2=192+80+128=400 additions -static void fft_dif(real_t * Real, real_t * Imag) -{ - real_t w_real, w_imag; // For faster access - real_t point1_real, point1_imag, point2_real, point2_imag; // For faster access - uint32_t j, i, i2, w_index; // Counters - - // First 2 stages of 32 point FFT decimation in frequency - // 4*16*2=64*2=128 multiplications - // 6*16*2=96*2=192 additions - // Stage 1 of 32 point FFT decimation in frequency - for (i = 0; i < 16; i++) - { - point1_real = Real[i]; - point1_imag = Imag[i]; - i2 = i+16; - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - w_real = w_array_real[i]; - w_imag = w_array_imag[i]; - - // temp1 = x[i] - x[i2] - point1_real -= point2_real; - point1_imag -= point2_imag; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * w - Real[i2] = (MUL_F(point1_real,w_real) - MUL_F(point1_imag,w_imag)); - Imag[i2] = (MUL_F(point1_real,w_imag) + MUL_F(point1_imag,w_real)); - } - // Stage 2 of 32 point FFT decimation in frequency - for (j = 0, w_index = 0; j < 8; j++, w_index += 2) - { - w_real = w_array_real[w_index]; - w_imag = w_array_imag[w_index]; - - i = j; - point1_real = Real[i]; - point1_imag = Imag[i]; - i2 = i+8; - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // temp1 = x[i] - x[i2] - point1_real -= point2_real; - point1_imag -= point2_imag; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * w - Real[i2] = (MUL_F(point1_real,w_real) - MUL_F(point1_imag,w_imag)); - Imag[i2] = (MUL_F(point1_real,w_imag) + MUL_F(point1_imag,w_real)); - - i = j+16; - point1_real = Real[i]; - point1_imag = Imag[i]; - i2 = i+8; - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // temp1 = x[i] - x[i2] - point1_real -= point2_real; - point1_imag -= point2_imag; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * w - Real[i2] = (MUL_F(point1_real,w_real) - MUL_F(point1_imag,w_imag)); - Imag[i2] = (MUL_F(point1_real,w_imag) + MUL_F(point1_imag,w_real)); - } - - // Stage 3 of 32 point FFT decimation in frequency - // 2*4*2=16 multiplications - // 4*4*2+6*4*2=10*8=80 additions - for (i = 0; i < n; i += 8) - { - i2 = i+4; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // out[i1] = point1 + point2 - Real[i] += point2_real; - Imag[i] += point2_imag; - - // out[i2] = point1 - point2 - Real[i2] = point1_real - point2_real; - Imag[i2] = point1_imag - point2_imag; - } - w_real = w_array_real[4]; // = sqrt(2)/2 - // w_imag = -w_real; // = w_array_imag[4]; // = -sqrt(2)/2 - for (i = 1; i < n; i += 8) - { - i2 = i+4; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // temp1 = x[i] - x[i2] - point1_real -= point2_real; - point1_imag -= point2_imag; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * w - Real[i2] = MUL_F(point1_real+point1_imag, w_real); - Imag[i2] = MUL_F(point1_imag-point1_real, w_real); - } - for (i = 2; i < n; i += 8) - { - i2 = i+4; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // x[i] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * (-i) - Real[i2] = point1_imag - point2_imag; - Imag[i2] = point2_real - point1_real; - } - w_real = w_array_real[12]; // = -sqrt(2)/2 - // w_imag = w_real; // = w_array_imag[12]; // = -sqrt(2)/2 - for (i = 3; i < n; i += 8) - { - i2 = i+4; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // temp1 = x[i] - x[i2] - point1_real -= point2_real; - point1_imag -= point2_imag; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * w - Real[i2] = MUL_F(point1_real-point1_imag, w_real); - Imag[i2] = MUL_F(point1_real+point1_imag, w_real); - } - - - // Stage 4 of 32 point FFT decimation in frequency (no multiplications) - // 16*4=64 additions - for (i = 0; i < n; i += 4) - { - i2 = i+2; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // x[i1] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = x[i] - x[i2] - Real[i2] = point1_real - point2_real; - Imag[i2] = point1_imag - point2_imag; - } - for (i = 1; i < n; i += 4) - { - i2 = i+2; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // x[i] = x[i] + x[i2] - Real[i] += point2_real; - Imag[i] += point2_imag; - - // x[i2] = (x[i] - x[i2]) * (-i) - Real[i2] = point1_imag - point2_imag; - Imag[i2] = point2_real - point1_real; - } - - // Stage 5 of 32 point FFT decimation in frequency (no multiplications) - // 16*4=64 additions - for (i = 0; i < n; i += 2) - { - i2 = i+1; - point1_real = Real[i]; - point1_imag = Imag[i]; - - point2_real = Real[i2]; - point2_imag = Imag[i2]; - - // out[i1] = point1 + point2 - Real[i] += point2_real; - Imag[i] += point2_imag; - - // out[i2] = point1 - point2 - Real[i2] = point1_real - point2_real; - Imag[i2] = point1_imag - point2_imag; - } - -#ifdef REORDER_IN_FFT - FFTReorder(Real, Imag); -#endif // #ifdef REORDER_IN_FFT -} -#undef n -#undef log2n - -static const real_t dct4_64_tab[] = { - COEF_CONST(0.999924719333649), COEF_CONST(0.998118102550507), - COEF_CONST(0.993906974792480), COEF_CONST(0.987301409244537), - COEF_CONST(0.978317379951477), COEF_CONST(0.966976463794708), - COEF_CONST(0.953306019306183), COEF_CONST(0.937339007854462), - COEF_CONST(0.919113874435425), COEF_CONST(0.898674488067627), - COEF_CONST(0.876070082187653), COEF_CONST(0.851355195045471), - COEF_CONST(0.824589252471924), COEF_CONST(0.795836925506592), - COEF_CONST(0.765167236328125), COEF_CONST(0.732654273509979), - COEF_CONST(0.698376238346100), COEF_CONST(0.662415742874146), - COEF_CONST(0.624859452247620), COEF_CONST(0.585797846317291), - COEF_CONST(0.545324981212616), COEF_CONST(0.503538429737091), - COEF_CONST(0.460538715124130), COEF_CONST(0.416429549455643), - COEF_CONST(0.371317148208618), COEF_CONST(0.325310230255127), - COEF_CONST(0.278519600629807), COEF_CONST(0.231058135628700), - COEF_CONST(0.183039888739586), COEF_CONST(0.134580686688423), - COEF_CONST(0.085797272622585), COEF_CONST(0.036807164549828), - COEF_CONST(-1.012196302413940), COEF_CONST(-1.059438824653626), - COEF_CONST(-1.104129195213318), COEF_CONST(-1.146159529685974), - COEF_CONST(-1.185428738594055), COEF_CONST(-1.221842169761658), - COEF_CONST(-1.255311965942383), COEF_CONST(-1.285757660865784), - COEF_CONST(-1.313105940818787), COEF_CONST(-1.337290763854981), - COEF_CONST(-1.358253836631775), COEF_CONST(-1.375944852828980), - COEF_CONST(-1.390321016311646), COEF_CONST(-1.401347875595093), - COEF_CONST(-1.408998727798462), COEF_CONST(-1.413255214691162), - COEF_CONST(-1.414107084274292), COEF_CONST(-1.411552190780640), - COEF_CONST(-1.405596733093262), COEF_CONST(-1.396255016326904), - COEF_CONST(-1.383549690246582), COEF_CONST(-1.367511272430420), - COEF_CONST(-1.348178386688232), COEF_CONST(-1.325597524642944), - COEF_CONST(-1.299823284149170), COEF_CONST(-1.270917654037476), - COEF_CONST(-1.238950133323669), COEF_CONST(-1.203998088836670), - COEF_CONST(-1.166145324707031), COEF_CONST(-1.125483393669128), - COEF_CONST(-1.082109928131104), COEF_CONST(-1.036129593849182), - COEF_CONST(-0.987653195858002), COEF_CONST(-0.936797380447388), - COEF_CONST(-0.883684754371643), COEF_CONST(-0.828443288803101), - COEF_CONST(-0.771206021308899), COEF_CONST(-0.712110757827759), - COEF_CONST(-0.651300072669983), COEF_CONST(-0.588920354843140), - COEF_CONST(-0.525121808052063), COEF_CONST(-0.460058242082596), - COEF_CONST(-0.393886327743530), COEF_CONST(-0.326765477657318), - COEF_CONST(-0.258857429027557), COEF_CONST(-0.190325915813446), - COEF_CONST(-0.121335685253143), COEF_CONST(-0.052053272724152), - COEF_CONST(0.017354607582092), COEF_CONST(0.086720645427704), - COEF_CONST(0.155877828598022), COEF_CONST(0.224659323692322), - COEF_CONST(0.292899727821350), COEF_CONST(0.360434412956238), - COEF_CONST(0.427100926637650), COEF_CONST(0.492738455533981), - COEF_CONST(0.557188928127289), COEF_CONST(0.620297133922577), - COEF_CONST(0.681910991668701), COEF_CONST(0.741881847381592), - COEF_CONST(0.800065577030182), COEF_CONST(0.856321990489960), - COEF_CONST(0.910515367984772), COEF_CONST(0.962515234947205), - COEF_CONST(1.000000000000000), COEF_CONST(0.998795449733734), - COEF_CONST(0.995184719562531), COEF_CONST(0.989176511764526), - COEF_CONST(0.980785250663757), COEF_CONST(0.970031261444092), - COEF_CONST(0.956940352916718), COEF_CONST(0.941544055938721), - COEF_CONST(0.923879504203796), COEF_CONST(0.903989315032959), - COEF_CONST(0.881921231746674), COEF_CONST(0.857728600502014), - COEF_CONST(0.831469595432281), COEF_CONST(0.803207516670227), - COEF_CONST(0.773010432720184), COEF_CONST(0.740951120853424), - COEF_CONST(0.707106769084930), COEF_CONST(0.671558916568756), - COEF_CONST(0.634393274784088), COEF_CONST(0.595699310302734), - COEF_CONST(0.555570185184479), COEF_CONST(0.514102697372437), - COEF_CONST(0.471396654844284), COEF_CONST(0.427555114030838), - COEF_CONST(0.382683426141739), COEF_CONST(0.336889833211899), - COEF_CONST(0.290284633636475), COEF_CONST(0.242980122566223), - COEF_CONST(0.195090234279633), COEF_CONST(0.146730497479439), - COEF_CONST(0.098017133772373), COEF_CONST(0.049067649990320), - COEF_CONST(-1.000000000000000), COEF_CONST(-1.047863125801086), - COEF_CONST(-1.093201875686646), COEF_CONST(-1.135906934738159), - COEF_CONST(-1.175875544548035), COEF_CONST(-1.213011503219605), - COEF_CONST(-1.247225046157837), COEF_CONST(-1.278433918952942), - COEF_CONST(-1.306562900543213), COEF_CONST(-1.331544399261475), - COEF_CONST(-1.353317975997925), COEF_CONST(-1.371831417083740), - COEF_CONST(-1.387039899826050), COEF_CONST(-1.398906826972961), - COEF_CONST(-1.407403707504273), COEF_CONST(-1.412510156631470), - COEF_CONST(0), COEF_CONST(-1.412510156631470), - COEF_CONST(-1.407403707504273), COEF_CONST(-1.398906826972961), - COEF_CONST(-1.387039899826050), COEF_CONST(-1.371831417083740), - COEF_CONST(-1.353317975997925), COEF_CONST(-1.331544399261475), - COEF_CONST(-1.306562900543213), COEF_CONST(-1.278433918952942), - COEF_CONST(-1.247225046157837), COEF_CONST(-1.213011384010315), - COEF_CONST(-1.175875544548035), COEF_CONST(-1.135907053947449), - COEF_CONST(-1.093201875686646), COEF_CONST(-1.047863125801086), - COEF_CONST(-1.000000000000000), COEF_CONST(-0.949727773666382), - COEF_CONST(-0.897167563438416), COEF_CONST(-0.842446029186249), - COEF_CONST(-0.785694956779480), COEF_CONST(-0.727051079273224), - COEF_CONST(-0.666655659675598), COEF_CONST(-0.604654192924500), - COEF_CONST(-0.541196048259735), COEF_CONST(-0.476434230804443), - COEF_CONST(-0.410524487495422), COEF_CONST(-0.343625843524933), - COEF_CONST(-0.275899350643158), COEF_CONST(-0.207508206367493), - COEF_CONST(-0.138617098331451), COEF_CONST(-0.069392144680023), - COEF_CONST(0), COEF_CONST(0.069392263889313), - COEF_CONST(0.138617157936096), COEF_CONST(0.207508206367493), - COEF_CONST(0.275899469852448), COEF_CONST(0.343625962734222), - COEF_CONST(0.410524636507034), COEF_CONST(0.476434201002121), - COEF_CONST(0.541196107864380), COEF_CONST(0.604654192924500), - COEF_CONST(0.666655719280243), COEF_CONST(0.727051138877869), - COEF_CONST(0.785695075988770), COEF_CONST(0.842446029186249), - COEF_CONST(0.897167563438416), COEF_CONST(0.949727773666382) -}; - -/* size 64 only! */ -void dct4_kernel(real_t * in_real, real_t * in_imag, real_t * out_real, real_t * out_imag) -{ - // Tables with bit reverse values for 5 bits, bit reverse of i at i-th position - const uint8_t bit_rev_tab[32] = { 0,16,8,24,4,20,12,28,2,18,10,26,6,22,14,30,1,17,9,25,5,21,13,29,3,19,11,27,7,23,15,31 }; - uint16_t i, i_rev; - - /* Step 2: modulate */ - // 3*32=96 multiplications - // 3*32=96 additions - for (i = 0; i < 32; i++) - { - real_t x_re, x_im, tmp; - x_re = in_real[i]; - x_im = in_imag[i]; - tmp = MUL_C(x_re + x_im, dct4_64_tab[i]); - in_real[i] = MUL_C(x_im, dct4_64_tab[i + 64]) + tmp; - in_imag[i] = MUL_C(x_re, dct4_64_tab[i + 32]) + tmp; - } - - /* Step 3: FFT, but with output in bit reverse order */ - fft_dif(in_real, in_imag); - - /* Step 4: modulate + bitreverse reordering */ - // 3*31+2=95 multiplications - // 3*31+2=95 additions - for (i = 0; i < 16; i++) - { - real_t x_re, x_im, tmp; - i_rev = bit_rev_tab[i]; - x_re = in_real[i_rev]; - x_im = in_imag[i_rev]; - - tmp = MUL_C(x_re + x_im, dct4_64_tab[i + 3*32]); - out_real[i] = MUL_C(x_im, dct4_64_tab[i + 5*32]) + tmp; - out_imag[i] = MUL_C(x_re, dct4_64_tab[i + 4*32]) + tmp; - } - // i = 16, i_rev = 1 = rev(16); - out_imag[16] = MUL_C(in_imag[1] - in_real[1], dct4_64_tab[16 + 3*32]); - out_real[16] = MUL_C(in_real[1] + in_imag[1], dct4_64_tab[16 + 3*32]); - for (i = 17; i < 32; i++) - { - real_t x_re, x_im, tmp; - i_rev = bit_rev_tab[i]; - x_re = in_real[i_rev]; - x_im = in_imag[i_rev]; - tmp = MUL_C(x_re + x_im, dct4_64_tab[i + 3*32]); - out_real[i] = MUL_C(x_im, dct4_64_tab[i + 5*32]) + tmp; - out_imag[i] = MUL_C(x_re, dct4_64_tab[i + 4*32]) + tmp; - } - -} - -void DST4_32(real_t *y, real_t *x) -{ - real_t f0, f1, f2, f3, f4, f5, f6, f7, f8, f9; - real_t f10, f11, f12, f13, f14, f15, f16, f17, f18, f19; - real_t f20, f21, f22, f23, f24, f25, f26, f27, f28, f29; - real_t f30, f31, f32, f33, f34, f35, f36, f37, f38, f39; - real_t f40, f41, f42, f43, f44, f45, f46, f47, f48, f49; - real_t f50, f51, f52, f53, f54, f55, f56, f57, f58, f59; - real_t f60, f61, f62, f63, f64, f65, f66, f67, f68, f69; - real_t f70, f71, f72, f73, f74, f75, f76, f77, f78, f79; - real_t f80, f81, f82, f83, f84, f85, f86, f87, f88, f89; - real_t f90, f91, f92, f93, f94, f95, f96, f97, f98, f99; - real_t f100, f101, f102, f103, f104, f105, f106, f107, f108, f109; - real_t f110, f111, f112, f113, f114, f115, f116, f117, f118, f119; - real_t f120, f121, f122, f123, f124, f125, f126, f127, f128, f129; - real_t f130, f131, f132, f133, f134, f135, f136, f137, f138, f139; - real_t f140, f141, f142, f143, f144, f145, f146, f147, f148, f149; - real_t f150, f151, f152, f153, f154, f155, f156, f157, f158, f159; - real_t f160, f161, f162, f163, f164, f165, f166, f167, f168, f169; - real_t f170, f171, f172, f173, f174, f175, f176, f177, f178, f179; - real_t f180, f181, f182, f183, f184, f185, f186, f187, f188, f189; - real_t f190, f191, f192, f193, f194, f195, f196, f197, f198, f199; - real_t f200, f201, f202, f203, f204, f205, f206, f207, f208, f209; - real_t f210, f211, f212, f213, f214, f215, f216, f217, f218, f219; - real_t f220, f221, f222, f223, f224, f225, f226, f227, f228, f229; - real_t f230, f231, f232, f233, f234, f235, f236, f237, f238, f239; - real_t f240, f241, f242, f243, f244, f245, f246, f247, f248, f249; - real_t f250, f251, f252, f253, f254, f255, f256, f257, f258, f259; - real_t f260, f261, f262, f263, f264, f265, f266, f267, f268, f269; - real_t f270, f271, f272, f273, f274, f275, f276, f277, f278, f279; - real_t f280, f281, f282, f283, f284, f285, f286, f287, f288, f289; - real_t f290, f291, f292, f293, f294, f295, f296, f297, f298, f299; - real_t f300, f301, f302, f303, f304, f305, f306, f307, f308, f309; - real_t f310, f311, f312, f313, f314, f315, f316, f317, f318, f319; - real_t f320, f321, f322, f323, f324, f325, f326, f327, f328, f329; - real_t f330, f331, f332, f333, f334, f335; - - f0 = x[0] - x[1]; - f1 = x[2] - x[1]; - f2 = x[2] - x[3]; - f3 = x[4] - x[3]; - f4 = x[4] - x[5]; - f5 = x[6] - x[5]; - f6 = x[6] - x[7]; - f7 = x[8] - x[7]; - f8 = x[8] - x[9]; - f9 = x[10] - x[9]; - f10 = x[10] - x[11]; - f11 = x[12] - x[11]; - f12 = x[12] - x[13]; - f13 = x[14] - x[13]; - f14 = x[14] - x[15]; - f15 = x[16] - x[15]; - f16 = x[16] - x[17]; - f17 = x[18] - x[17]; - f18 = x[18] - x[19]; - f19 = x[20] - x[19]; - f20 = x[20] - x[21]; - f21 = x[22] - x[21]; - f22 = x[22] - x[23]; - f23 = x[24] - x[23]; - f24 = x[24] - x[25]; - f25 = x[26] - x[25]; - f26 = x[26] - x[27]; - f27 = x[28] - x[27]; - f28 = x[28] - x[29]; - f29 = x[30] - x[29]; - f30 = x[30] - x[31]; - f31 = MUL_F(FRAC_CONST(0.7071067811865476), f15); - f32 = x[0] - f31; - f33 = x[0] + f31; - f34 = f7 + f23; - f35 = MUL_C(COEF_CONST(1.3065629648763766), f7); - f36 = MUL_F(FRAC_CONST(-0.9238795325112866), f34); - f37 = MUL_F(FRAC_CONST(-0.5411961001461967), f23); - f38 = f35 + f36; - f39 = f37 - f36; - f40 = f33 - f39; - f41 = f33 + f39; - f42 = f32 - f38; - f43 = f32 + f38; - f44 = f11 - f19; - f45 = f11 + f19; - f46 = MUL_F(FRAC_CONST(0.7071067811865476), f45); - f47 = f3 - f46; - f48 = f3 + f46; - f49 = MUL_F(FRAC_CONST(0.7071067811865476), f44); - f50 = f49 - f27; - f51 = f49 + f27; - f52 = f51 + f48; - f53 = MUL_F(FRAC_CONST(-0.7856949583871021), f51); - f54 = MUL_F(FRAC_CONST(0.9807852804032304), f52); - f55 = MUL_C(COEF_CONST(1.1758756024193588), f48); - f56 = f53 + f54; - f57 = f55 - f54; - f58 = f50 + f47; - f59 = MUL_F(FRAC_CONST(-0.2758993792829430), f50); - f60 = MUL_F(FRAC_CONST(0.8314696123025452), f58); - f61 = MUL_C(COEF_CONST(1.3870398453221475), f47); - f62 = f59 + f60; - f63 = f61 - f60; - f64 = f41 - f56; - f65 = f41 + f56; - f66 = f43 - f62; - f67 = f43 + f62; - f68 = f42 - f63; - f69 = f42 + f63; - f70 = f40 - f57; - f71 = f40 + f57; - f72 = f5 - f9; - f73 = f5 + f9; - f74 = f13 - f17; - f75 = f13 + f17; - f76 = f21 - f25; - f77 = f21 + f25; - f78 = MUL_F(FRAC_CONST(0.7071067811865476), f75); - f79 = f1 - f78; - f80 = f1 + f78; - f81 = f73 + f77; - f82 = MUL_C(COEF_CONST(1.3065629648763766), f73); - f83 = MUL_F(FRAC_CONST(-0.9238795325112866), f81); - f84 = MUL_F(FRAC_CONST(-0.5411961001461967), f77); - f85 = f82 + f83; - f86 = f84 - f83; - f87 = f80 - f86; - f88 = f80 + f86; - f89 = f79 - f85; - f90 = f79 + f85; - f91 = MUL_F(FRAC_CONST(0.7071067811865476), f74); - f92 = f29 - f91; - f93 = f29 + f91; - f94 = f76 + f72; - f95 = MUL_C(COEF_CONST(1.3065629648763766), f76); - f96 = MUL_F(FRAC_CONST(-0.9238795325112866), f94); - f97 = MUL_F(FRAC_CONST(-0.5411961001461967), f72); - f98 = f95 + f96; - f99 = f97 - f96; - f100 = f93 - f99; - f101 = f93 + f99; - f102 = f92 - f98; - f103 = f92 + f98; - f104 = f101 + f88; - f105 = MUL_F(FRAC_CONST(-0.8971675863426361), f101); - f106 = MUL_F(FRAC_CONST(0.9951847266721968), f104); - f107 = MUL_C(COEF_CONST(1.0932018670017576), f88); - f108 = f105 + f106; - f109 = f107 - f106; - f110 = f90 - f103; - f111 = MUL_F(FRAC_CONST(-0.6666556584777466), f103); - f112 = MUL_F(FRAC_CONST(0.9569403357322089), f110); - f113 = MUL_C(COEF_CONST(1.2472250129866713), f90); - f114 = f112 - f111; - f115 = f113 - f112; - f116 = f102 + f89; - f117 = MUL_F(FRAC_CONST(-0.4105245275223571), f102); - f118 = MUL_F(FRAC_CONST(0.8819212643483549), f116); - f119 = MUL_C(COEF_CONST(1.3533180011743529), f89); - f120 = f117 + f118; - f121 = f119 - f118; - f122 = f87 - f100; - f123 = MUL_F(FRAC_CONST(-0.1386171691990915), f100); - f124 = MUL_F(FRAC_CONST(0.7730104533627370), f122); - f125 = MUL_C(COEF_CONST(1.4074037375263826), f87); - f126 = f124 - f123; - f127 = f125 - f124; - f128 = f65 - f108; - f129 = f65 + f108; - f130 = f67 - f114; - f131 = f67 + f114; - f132 = f69 - f120; - f133 = f69 + f120; - f134 = f71 - f126; - f135 = f71 + f126; - f136 = f70 - f127; - f137 = f70 + f127; - f138 = f68 - f121; - f139 = f68 + f121; - f140 = f66 - f115; - f141 = f66 + f115; - f142 = f64 - f109; - f143 = f64 + f109; - f144 = f0 + f30; - f145 = MUL_C(COEF_CONST(1.0478631305325901), f0); - f146 = MUL_F(FRAC_CONST(-0.9987954562051724), f144); - f147 = MUL_F(FRAC_CONST(-0.9497277818777548), f30); - f148 = f145 + f146; - f149 = f147 - f146; - f150 = f4 + f26; - f151 = MUL_F(FRAC_CONST(1.2130114330978077), f4); - f152 = MUL_F(FRAC_CONST(-0.9700312531945440), f150); - f153 = MUL_F(FRAC_CONST(-0.7270510732912803), f26); - f154 = f151 + f152; - f155 = f153 - f152; - f156 = f8 + f22; - f157 = MUL_C(COEF_CONST(1.3315443865537255), f8); - f158 = MUL_F(FRAC_CONST(-0.9039892931234433), f156); - f159 = MUL_F(FRAC_CONST(-0.4764341996931612), f22); - f160 = f157 + f158; - f161 = f159 - f158; - f162 = f12 + f18; - f163 = MUL_C(COEF_CONST(1.3989068359730781), f12); - f164 = MUL_F(FRAC_CONST(-0.8032075314806453), f162); - f165 = MUL_F(FRAC_CONST(-0.2075082269882124), f18); - f166 = f163 + f164; - f167 = f165 - f164; - f168 = f16 + f14; - f169 = MUL_C(COEF_CONST(1.4125100802019777), f16); - f170 = MUL_F(FRAC_CONST(-0.6715589548470187), f168); - f171 = MUL_F(FRAC_CONST(0.0693921705079402), f14); - f172 = f169 + f170; - f173 = f171 - f170; - f174 = f20 + f10; - f175 = MUL_C(COEF_CONST(1.3718313541934939), f20); - f176 = MUL_F(FRAC_CONST(-0.5141027441932219), f174); - f177 = MUL_F(FRAC_CONST(0.3436258658070501), f10); - f178 = f175 + f176; - f179 = f177 - f176; - f180 = f24 + f6; - f181 = MUL_C(COEF_CONST(1.2784339185752409), f24); - f182 = MUL_F(FRAC_CONST(-0.3368898533922200), f180); - f183 = MUL_F(FRAC_CONST(0.6046542117908008), f6); - f184 = f181 + f182; - f185 = f183 - f182; - f186 = f28 + f2; - f187 = MUL_C(COEF_CONST(1.1359069844201433), f28); - f188 = MUL_F(FRAC_CONST(-0.1467304744553624), f186); - f189 = MUL_F(FRAC_CONST(0.8424460355094185), f2); - f190 = f187 + f188; - f191 = f189 - f188; - f192 = f149 - f173; - f193 = f149 + f173; - f194 = f148 - f172; - f195 = f148 + f172; - f196 = f155 - f179; - f197 = f155 + f179; - f198 = f154 - f178; - f199 = f154 + f178; - f200 = f161 - f185; - f201 = f161 + f185; - f202 = f160 - f184; - f203 = f160 + f184; - f204 = f167 - f191; - f205 = f167 + f191; - f206 = f166 - f190; - f207 = f166 + f190; - f208 = f192 + f194; - f209 = MUL_C(COEF_CONST(1.1758756024193588), f192); - f210 = MUL_F(FRAC_CONST(-0.9807852804032304), f208); - f211 = MUL_F(FRAC_CONST(-0.7856949583871021), f194); - f212 = f209 + f210; - f213 = f211 - f210; - f214 = f196 + f198; - f215 = MUL_C(COEF_CONST(1.3870398453221475), f196); - f216 = MUL_F(FRAC_CONST(-0.5555702330196022), f214); - f217 = MUL_F(FRAC_CONST(0.2758993792829431), f198); - f218 = f215 + f216; - f219 = f217 - f216; - f220 = f200 + f202; - f221 = MUL_F(FRAC_CONST(0.7856949583871022), f200); - f222 = MUL_F(FRAC_CONST(0.1950903220161283), f220); - f223 = MUL_C(COEF_CONST(1.1758756024193586), f202); - f224 = f221 + f222; - f225 = f223 - f222; - f226 = f204 + f206; - f227 = MUL_F(FRAC_CONST(-0.2758993792829430), f204); - f228 = MUL_F(FRAC_CONST(0.8314696123025452), f226); - f229 = MUL_C(COEF_CONST(1.3870398453221475), f206); - f230 = f227 + f228; - f231 = f229 - f228; - f232 = f193 - f201; - f233 = f193 + f201; - f234 = f195 - f203; - f235 = f195 + f203; - f236 = f197 - f205; - f237 = f197 + f205; - f238 = f199 - f207; - f239 = f199 + f207; - f240 = f213 - f225; - f241 = f213 + f225; - f242 = f212 - f224; - f243 = f212 + f224; - f244 = f219 - f231; - f245 = f219 + f231; - f246 = f218 - f230; - f247 = f218 + f230; - f248 = f232 + f234; - f249 = MUL_C(COEF_CONST(1.3065629648763766), f232); - f250 = MUL_F(FRAC_CONST(-0.9238795325112866), f248); - f251 = MUL_F(FRAC_CONST(-0.5411961001461967), f234); - f252 = f249 + f250; - f253 = f251 - f250; - f254 = f236 + f238; - f255 = MUL_F(FRAC_CONST(0.5411961001461969), f236); - f256 = MUL_F(FRAC_CONST(0.3826834323650898), f254); - f257 = MUL_C(COEF_CONST(1.3065629648763766), f238); - f258 = f255 + f256; - f259 = f257 - f256; - f260 = f240 + f242; - f261 = MUL_C(COEF_CONST(1.3065629648763766), f240); - f262 = MUL_F(FRAC_CONST(-0.9238795325112866), f260); - f263 = MUL_F(FRAC_CONST(-0.5411961001461967), f242); - f264 = f261 + f262; - f265 = f263 - f262; - f266 = f244 + f246; - f267 = MUL_F(FRAC_CONST(0.5411961001461969), f244); - f268 = MUL_F(FRAC_CONST(0.3826834323650898), f266); - f269 = MUL_C(COEF_CONST(1.3065629648763766), f246); - f270 = f267 + f268; - f271 = f269 - f268; - f272 = f233 - f237; - f273 = f233 + f237; - f274 = f235 - f239; - f275 = f235 + f239; - f276 = f253 - f259; - f277 = f253 + f259; - f278 = f252 - f258; - f279 = f252 + f258; - f280 = f241 - f245; - f281 = f241 + f245; - f282 = f243 - f247; - f283 = f243 + f247; - f284 = f265 - f271; - f285 = f265 + f271; - f286 = f264 - f270; - f287 = f264 + f270; - f288 = f272 - f274; - f289 = f272 + f274; - f290 = MUL_F(FRAC_CONST(0.7071067811865474), f288); - f291 = MUL_F(FRAC_CONST(0.7071067811865474), f289); - f292 = f276 - f278; - f293 = f276 + f278; - f294 = MUL_F(FRAC_CONST(0.7071067811865474), f292); - f295 = MUL_F(FRAC_CONST(0.7071067811865474), f293); - f296 = f280 - f282; - f297 = f280 + f282; - f298 = MUL_F(FRAC_CONST(0.7071067811865474), f296); - f299 = MUL_F(FRAC_CONST(0.7071067811865474), f297); - f300 = f284 - f286; - f301 = f284 + f286; - f302 = MUL_F(FRAC_CONST(0.7071067811865474), f300); - f303 = MUL_F(FRAC_CONST(0.7071067811865474), f301); - f304 = f129 - f273; - f305 = f129 + f273; - f306 = f131 - f281; - f307 = f131 + f281; - f308 = f133 - f285; - f309 = f133 + f285; - f310 = f135 - f277; - f311 = f135 + f277; - f312 = f137 - f295; - f313 = f137 + f295; - f314 = f139 - f303; - f315 = f139 + f303; - f316 = f141 - f299; - f317 = f141 + f299; - f318 = f143 - f291; - f319 = f143 + f291; - f320 = f142 - f290; - f321 = f142 + f290; - f322 = f140 - f298; - f323 = f140 + f298; - f324 = f138 - f302; - f325 = f138 + f302; - f326 = f136 - f294; - f327 = f136 + f294; - f328 = f134 - f279; - f329 = f134 + f279; - f330 = f132 - f287; - f331 = f132 + f287; - f332 = f130 - f283; - f333 = f130 + f283; - f334 = f128 - f275; - f335 = f128 + f275; - y[31] = MUL_F(FRAC_CONST(0.5001506360206510), f305); - y[30] = MUL_F(FRAC_CONST(0.5013584524464084), f307); - y[29] = MUL_F(FRAC_CONST(0.5037887256810443), f309); - y[28] = MUL_F(FRAC_CONST(0.5074711720725553), f311); - y[27] = MUL_F(FRAC_CONST(0.5124514794082247), f313); - y[26] = MUL_F(FRAC_CONST(0.5187927131053328), f315); - y[25] = MUL_F(FRAC_CONST(0.5265773151542700), f317); - y[24] = MUL_F(FRAC_CONST(0.5359098169079920), f319); - y[23] = MUL_F(FRAC_CONST(0.5469204379855088), f321); - y[22] = MUL_F(FRAC_CONST(0.5597698129470802), f323); - y[21] = MUL_F(FRAC_CONST(0.5746551840326600), f325); - y[20] = MUL_F(FRAC_CONST(0.5918185358574165), f327); - y[19] = MUL_F(FRAC_CONST(0.6115573478825099), f329); - y[18] = MUL_F(FRAC_CONST(0.6342389366884031), f331); - y[17] = MUL_F(FRAC_CONST(0.6603198078137061), f333); - y[16] = MUL_F(FRAC_CONST(0.6903721282002123), f335); - y[15] = MUL_F(FRAC_CONST(0.7251205223771985), f334); - y[14] = MUL_F(FRAC_CONST(0.7654941649730891), f332); - y[13] = MUL_F(FRAC_CONST(0.8127020908144905), f330); - y[12] = MUL_F(FRAC_CONST(0.8683447152233481), f328); - y[11] = MUL_F(FRAC_CONST(0.9345835970364075), f326); - y[10] = MUL_C(COEF_CONST(1.0144082649970547), f324); - y[9] = MUL_C(COEF_CONST(1.1120716205797176), f322); - y[8] = MUL_C(COEF_CONST(1.2338327379765710), f320); - y[7] = MUL_C(COEF_CONST(1.3892939586328277), f318); - y[6] = MUL_C(COEF_CONST(1.5939722833856311), f316); - y[5] = MUL_C(COEF_CONST(1.8746759800084078), f314); - y[4] = MUL_C(COEF_CONST(2.2820500680051619), f312); - y[3] = MUL_C(COEF_CONST(2.9246284281582162), f310); - y[2] = MUL_C(COEF_CONST(4.0846110781292477), f308); - y[1] = MUL_C(COEF_CONST(6.7967507116736332), f306); - y[0] = MUL_R(REAL_CONST(20.3738781672314530), f304); -} - -#endif - -#endif |