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/* |
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* Copyright (C) 2005-2008 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#include "debugmodule/debugmodule.h" |
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DECLARE_GLOBAL_DEBUG_MODULE; |
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#include "libutil/ByteSwap.h" |
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#include "libutil/SystemTimeSource.h" |
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#include <inttypes.h> |
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#include <emmintrin.h> |
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/* |
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void test() { |
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vSInt16 *in, *out; //must be 16 byte aligned |
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for( x = 0; x < array_bytes / sizeof( vSInt16); x++ ) |
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{ |
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vSInt16 v = in[x]; //load 16 bytes |
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v = _mm_or_si128( _mm_slli_epi16( v, 8 ), _mm_srli_epi16( v, 8 ) ); //swap it |
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out[x] = v; //store it out |
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} |
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}*/ |
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#define NB_QUADLETS (4096 * 4096) |
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#define NB_TESTS 10 |
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int |
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main(int argc, char **argv) { |
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quadlet_t *buffer_1; |
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quadlet_t *buffer_ref; |
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int i=0; |
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Util::SystemTimeSource time; |
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ffado_microsecs_t start; |
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ffado_microsecs_t elapsed; |
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setDebugLevel(DEBUG_LEVEL_NORMAL); |
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buffer_1 = new quadlet_t[NB_QUADLETS]; |
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buffer_ref = new quadlet_t[NB_QUADLETS]; |
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debugOutput(DEBUG_LEVEL_NORMAL, "Generating test data...\n"); |
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for (i=0; i<NB_QUADLETS; i++) { |
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byte_t tmp = i & 0xFF; |
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buffer_1[i] = tmp << 24; |
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tmp = (i + 1) & 0xFF; |
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buffer_1[i] |= tmp << 16; |
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tmp = (i + 2) & 0xFF; |
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buffer_1[i] |= tmp << 8; |
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tmp = (i + 3) & 0xFF; |
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buffer_1[i] |= tmp; |
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} |
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// do reference conversion |
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for (i=0; i<NB_QUADLETS; i++) { |
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buffer_ref[i] = htonl(buffer_1[i]); |
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} |
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debugOutput(DEBUG_LEVEL_NORMAL, "Performing byte-swap...\n"); |
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int test=0; |
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for (test=0; test<NB_TESTS; test++) { |
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for (i=0; i<NB_QUADLETS; i++) { |
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byte_t tmp = i & 0xFF; |
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buffer_1[i] = tmp << 24; |
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tmp = (i + 1) & 0xFF; |
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buffer_1[i] |= tmp << 16; |
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tmp = (i + 2) & 0xFF; |
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buffer_1[i] |= tmp << 8; |
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tmp = (i + 3) & 0xFF; |
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buffer_1[i] |= tmp; |
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} |
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start = time.getCurrentTimeAsUsecs(); |
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byteSwapToBus(buffer_1, NB_QUADLETS); |
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elapsed = time.getCurrentTimeAsUsecs() - start; |
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debugOutput(DEBUG_LEVEL_NORMAL, " took %lluusec...\n", elapsed); |
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} |
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// check |
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debugOutput(DEBUG_LEVEL_NORMAL, "Checking results...\n"); |
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bool all_ok=true; |
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for (i=0; i<NB_QUADLETS; i++) { |
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if (buffer_1[i] != buffer_ref[i]) { |
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debugOutput(DEBUG_LEVEL_NORMAL, " bad result: %08X should be %08X\n", |
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buffer_1[i], buffer_ref[i]); |
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all_ok=false; |
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} else { |
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//debugOutput(DEBUG_LEVEL_VERBOSE, "good result: %08X should be %08X\n", |
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// buffer_1[i], buffer_ref[i]); |
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} |
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} |
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delete[] buffer_1; |
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delete[] buffer_ref; |
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return 0; |
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} |
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