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Diffstat (limited to 'src/pulsecore/svolume_orc.c')
| -rw-r--r-- | src/pulsecore/svolume_orc.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/pulsecore/svolume_orc.c b/src/pulsecore/svolume_orc.c new file mode 100644 index 00000000..8e1e46cf --- /dev/null +++ b/src/pulsecore/svolume_orc.c @@ -0,0 +1,138 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2009 Wim Taymans <wim.taymans@collabora.co.uk> + Copyright 2010 Arun Raghavan <arun.raghavan@collabora.co.uk> + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of the License, + or (at your option) any later version. + + PulseAudio 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 Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "cpu-orc.h" +#include <pulse/rtclock.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/random.h> +#include <pulsecore/svolume-orc-gen.h> + +pa_do_volume_func_t fallback; + +static void +pa_volume_s16ne_orc(int16_t *samples, int32_t *volumes, unsigned channels, unsigned length) +{ + if (channels == 2) { + int64_t v = (int64_t)volumes[1] << 32 | volumes[0]; + pa_volume_s16ne_orc_2ch (samples, v, ((length / (sizeof(int16_t))) / 2)); + } else if (channels == 1) + pa_volume_s16ne_orc_1ch (samples, volumes[0], length / (sizeof(int16_t))); + else + fallback(samples, volumes, channels, length); +} + +#undef RUN_TEST + +#ifdef RUN_TEST +#define CHANNELS 2 +#define SAMPLES 1022 +#define TIMES 1000 +#define TIMES2 100 +#define PADDING 16 + +static void run_test(void) { + int16_t samples[SAMPLES]; + int16_t samples_ref[SAMPLES]; + int16_t samples_orig[SAMPLES]; + int32_t volumes[CHANNELS + PADDING]; + int i, j, padding; + pa_do_volume_func_t func; + pa_usec_t start, stop; + int k; + pa_usec_t min = INT_MAX, max = 0; + double s1 = 0, s2 = 0; + + func = pa_get_volume_func(PA_SAMPLE_S16NE); + + printf("checking ORC %zd\n", sizeof(samples)); + + pa_random(samples, sizeof(samples)); + memcpy(samples_ref, samples, sizeof(samples)); + memcpy(samples_orig, samples, sizeof(samples)); + + for (i = 0; i < CHANNELS; i++) + volumes[i] = PA_CLAMP_VOLUME(rand() >> 1); + for (padding = 0; padding < PADDING; padding++, i++) + volumes[i] = volumes[padding]; + + func(samples_ref, volumes, CHANNELS, sizeof(samples)); + pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples)); + for (i = 0; i < SAMPLES; i++) { + if (samples[i] != samples_ref[i]) { + printf ("%d: %04x != %04x (%04x * %04x)\n", i, samples[i], samples_ref[i], + samples_orig[i], volumes[i % CHANNELS]); + } + } + + for (k = 0; k < TIMES2; k++) { + start = pa_rtclock_now(); + for (j = 0; j < TIMES; j++) { + memcpy(samples, samples_orig, sizeof(samples)); + pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples)); + } + stop = pa_rtclock_now(); + + if (min > (stop - start)) min = stop - start; + if (max < (stop - start)) max = stop - start; + s1 += stop - start; + s2 += (stop - start) * (stop - start); + } + pa_log_info("ORC: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1, + (long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2); + + min = INT_MAX; max = 0; + s1 = s2 = 0; + for (k = 0; k < TIMES2; k++) { + start = pa_rtclock_now(); + for (j = 0; j < TIMES; j++) { + memcpy(samples_ref, samples_orig, sizeof(samples)); + func(samples_ref, volumes, CHANNELS, sizeof(samples)); + } + stop = pa_rtclock_now(); + + if (min > (stop - start)) min = stop - start; + if (max < (stop - start)) max = stop - start; + s1 += stop - start; + s2 += (stop - start) * (stop - start); + } + pa_log_info("ref: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1, + (long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2); + + pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0); +} +#endif + +void pa_volume_func_init_orc(void) { + pa_log_info("Initialising ORC optimized functions."); + +#ifdef RUN_TEST + run_test(); +#endif + + fallback = pa_get_volume_func(PA_SAMPLE_S16NE); + pa_set_volume_func(PA_SAMPLE_S16NE, (pa_do_volume_func_t) pa_volume_s16ne_orc); +} |