mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-12 13:30:10 -05:00
aa02e1654b
This is needed for building with anonymous unions. A bunch of calls to fail() that used to mysteriously work need fixing -- fail() is a macro that takes a printf-style message as an argument. Not passing this somehow worked with the previous compiler flags, but breaks with -std=c11.
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/***
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This file is part of PulseAudio.
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <check.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <math.h>
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#include <pulse/rtclock.h>
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#include <pulsecore/random.h>
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#include <pulsecore/macro.h>
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#include "runtime-test-util.h"
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static inline int32_t pa_mult_s16_volume_32(int16_t v, int32_t cv) {
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/* Multiplying the 32 bit volume factor with the
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* 16 bit sample might result in an 48 bit value. We
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* want to do without 64 bit integers and hence do
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* the multiplication independently for the HI and
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* LO part of the volume. */
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int32_t hi = cv >> 16;
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int32_t lo = cv & 0xFFFF;
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return ((v * lo) >> 16) + (v * hi);
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}
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static inline int32_t pa_mult_s16_volume_64(int16_t v, int32_t cv) {
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/* Multiply with 64 bit integers on 64 bit platforms */
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return (v * (int64_t) cv) >> 16;
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}
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#define SAMPLES 1028
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#define TIMES 10000
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#define TIMES2 100
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START_TEST (mult_s16_test) {
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int16_t samples[SAMPLES];
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int32_t volumes[SAMPLES];
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int32_t sum1 = 0, sum2 = 0;
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int i;
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pa_random(samples, sizeof(samples));
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pa_random(volumes, sizeof(volumes));
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for (i = 0; i < SAMPLES; i++) {
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int32_t a = pa_mult_s16_volume_32(samples[i], volumes[i]);
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int32_t b = pa_mult_s16_volume_64(samples[i], volumes[i]);
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if (a != b) {
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pa_log_debug("%d: %d != %d", i, a, b);
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ck_abort();
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}
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}
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PA_RUNTIME_TEST_RUN_START("32 bit mult", TIMES, TIMES2) {
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for (i = 0; i < SAMPLES; i++) {
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sum1 += pa_mult_s16_volume_32(samples[i], volumes[i]);
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}
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} PA_RUNTIME_TEST_RUN_STOP
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PA_RUNTIME_TEST_RUN_START("64 bit mult", TIMES, TIMES2) {
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for (i = 0; i < SAMPLES; i++)
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sum2 += pa_mult_s16_volume_64(samples[i], volumes[i]);
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} PA_RUNTIME_TEST_RUN_STOP
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fail_unless(sum1 == sum2);
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}
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END_TEST
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int main(int argc, char *argv[]) {
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int failed = 0;
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Suite *s;
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TCase *tc;
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SRunner *sr;
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if (!getenv("MAKE_CHECK"))
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pa_log_set_level(PA_LOG_DEBUG);
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#ifdef HAVE_FAST_64BIT_OPERATIONS
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pa_log_debug("Detected CPU with fast 64-bit operations.");
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#else
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pa_log_debug("Not detected CPU with fast 64-bit operations.");
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#endif
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s = suite_create("Mult-s16");
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tc = tcase_create("mult-s16");
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tcase_add_test(tc, mult_s16_test);
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tcase_set_timeout(tc, 120);
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suite_add_tcase(s, tc);
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sr = srunner_create(s);
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srunner_run_all(sr, CK_NORMAL);
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failed = srunner_ntests_failed(sr);
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srunner_free(sr);
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return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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