LCOV - code coverage report
Current view: top level - pulsecore - svolume_orc.c (source / functions) Hit Total Coverage
Test: lcov.out Lines: 0 13 0.0 %
Date: 2012-07-17 Functions: 0 2 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 4 0.0 %

           Branch data     Line data    Source code
       1                 :            : /***
       2                 :            :   This file is part of PulseAudio.
       3                 :            : 
       4                 :            :   Copyright 2004-2006 Lennart Poettering
       5                 :            :   Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk>
       6                 :            :   Copyright 2010 Arun Raghavan <arun.raghavan@collabora.co.uk>
       7                 :            : 
       8                 :            :   PulseAudio is free software; you can redistribute it and/or modify
       9                 :            :   it under the terms of the GNU Lesser General Public License as published
      10                 :            :   by the Free Software Foundation; either version 2.1 of the License,
      11                 :            :   or (at your option) any later version.
      12                 :            : 
      13                 :            :   PulseAudio is distributed in the hope that it will be useful, but
      14                 :            :   WITHOUT ANY WARRANTY; without even the implied warranty of
      15                 :            :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      16                 :            :   General Public License for more details.
      17                 :            : 
      18                 :            :   You should have received a copy of the GNU Lesser General Public License
      19                 :            :   along with PulseAudio; if not, write to the Free Software
      20                 :            :   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
      21                 :            :   USA.
      22                 :            : ***/
      23                 :            : 
      24                 :            : #ifdef HAVE_CONFIG_H
      25                 :            : #include <config.h>
      26                 :            : #endif
      27                 :            : 
      28                 :            : #include "cpu-orc.h"
      29                 :            : #include <pulse/rtclock.h>
      30                 :            : #include <pulsecore/sample-util.h>
      31                 :            : #include <pulsecore/random.h>
      32                 :            : #include <pulsecore/svolume-orc-gen.h>
      33                 :            : 
      34                 :            : pa_do_volume_func_t fallback;
      35                 :            : 
      36                 :            : static void
      37                 :          0 : pa_volume_s16ne_orc(int16_t *samples, const int32_t *volumes, unsigned channels, unsigned length)
      38                 :            : {
      39         [ #  # ]:          0 :     if (channels == 2) {
      40                 :          0 :         int64_t v = (int64_t)volumes[1] << 32 | volumes[0];
      41                 :          0 :         pa_volume_s16ne_orc_2ch (samples, v, ((length / (sizeof(int16_t))) / 2));
      42         [ #  # ]:          0 :     } else if (channels == 1)
      43                 :          0 :         pa_volume_s16ne_orc_1ch (samples, volumes[0], length / (sizeof(int16_t)));
      44                 :            :     else
      45                 :          0 :         fallback(samples, volumes, channels, length);
      46                 :          0 : }
      47                 :            : 
      48                 :            : #undef RUN_TEST
      49                 :            : 
      50                 :            : #ifdef RUN_TEST
      51                 :            : #define CHANNELS 2
      52                 :            : #define SAMPLES 1022
      53                 :            : #define TIMES 1000
      54                 :            : #define TIMES2 100
      55                 :            : #define PADDING 16
      56                 :            : 
      57                 :            : static void run_test(void) {
      58                 :            :     int16_t samples[SAMPLES];
      59                 :            :     int16_t samples_ref[SAMPLES];
      60                 :            :     int16_t samples_orig[SAMPLES];
      61                 :            :     int32_t volumes[CHANNELS + PADDING];
      62                 :            :     int i, j, padding;
      63                 :            :     pa_do_volume_func_t func;
      64                 :            :     pa_usec_t start, stop;
      65                 :            :     int k;
      66                 :            :     pa_usec_t min = INT_MAX, max = 0;
      67                 :            :     double s1 = 0, s2 = 0;
      68                 :            : 
      69                 :            :     func = pa_get_volume_func(PA_SAMPLE_S16NE);
      70                 :            : 
      71                 :            :     printf("checking ORC %zd\n", sizeof(samples));
      72                 :            : 
      73                 :            :     pa_random(samples, sizeof(samples));
      74                 :            :     memcpy(samples_ref, samples, sizeof(samples));
      75                 :            :     memcpy(samples_orig, samples, sizeof(samples));
      76                 :            : 
      77                 :            :     for (i = 0; i < CHANNELS; i++)
      78                 :            :         volumes[i] = PA_CLAMP_VOLUME(rand() >> 15);
      79                 :            :     for (padding = 0; padding < PADDING; padding++, i++)
      80                 :            :         volumes[i] = volumes[padding];
      81                 :            : 
      82                 :            :     func(samples_ref, volumes, CHANNELS, sizeof(samples));
      83                 :            :     pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples));
      84                 :            :     for (i = 0; i < SAMPLES; i++) {
      85                 :            :         if (samples[i] != samples_ref[i]) {
      86                 :            :             printf ("%d: %04x != %04x (%04x * %04x)\n", i, samples[i], samples_ref[i],
      87                 :            :                       samples_orig[i], volumes[i % CHANNELS]);
      88                 :            :         }
      89                 :            :     }
      90                 :            : 
      91                 :            :     for (k = 0; k < TIMES2; k++) {
      92                 :            :         start = pa_rtclock_now();
      93                 :            :         for (j = 0; j < TIMES; j++) {
      94                 :            :             memcpy(samples, samples_orig, sizeof(samples));
      95                 :            :             pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples));
      96                 :            :         }
      97                 :            :         stop = pa_rtclock_now();
      98                 :            : 
      99                 :            :         if (min > (stop - start)) min = stop - start;
     100                 :            :         if (max < (stop - start)) max = stop - start;
     101                 :            :         s1 += stop - start;
     102                 :            :         s2 += (stop - start) * (stop - start);
     103                 :            :     }
     104                 :            :     pa_log_info("ORC: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1,
     105                 :            :             (long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2);
     106                 :            : 
     107                 :            :     min = INT_MAX; max = 0;
     108                 :            :     s1 = s2 = 0;
     109                 :            :     for (k = 0; k < TIMES2; k++) {
     110                 :            :         start = pa_rtclock_now();
     111                 :            :         for (j = 0; j < TIMES; j++) {
     112                 :            :             memcpy(samples_ref, samples_orig, sizeof(samples));
     113                 :            :             func(samples_ref, volumes, CHANNELS, sizeof(samples));
     114                 :            :         }
     115                 :            :         stop = pa_rtclock_now();
     116                 :            : 
     117                 :            :         if (min > (stop - start)) min = stop - start;
     118                 :            :         if (max < (stop - start)) max = stop - start;
     119                 :            :         s1 += stop - start;
     120                 :            :         s2 += (stop - start) * (stop - start);
     121                 :            :     }
     122                 :            :     pa_log_info("ref: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1,
     123                 :            :             (long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2);
     124                 :            : 
     125                 :            :     pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
     126                 :            : }
     127                 :            : #endif
     128                 :            : 
     129                 :          0 : void pa_volume_func_init_orc(void) {
     130                 :          0 :     pa_log_info("Initialising ORC optimized volume functions.");
     131                 :            : 
     132                 :            : #ifdef RUN_TEST
     133                 :            :     run_test();
     134                 :            : #endif
     135                 :            : 
     136                 :          0 :     fallback = pa_get_volume_func(PA_SAMPLE_S16NE);
     137                 :          0 :     pa_set_volume_func(PA_SAMPLE_S16NE, (pa_do_volume_func_t) pa_volume_s16ne_orc);
     138                 :          0 : }

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