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-rw-r--r--test/test_pcm_volume.cxx171
1 files changed, 171 insertions, 0 deletions
diff --git a/test/test_pcm_volume.cxx b/test/test_pcm_volume.cxx
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index 000000000..d5aa3782e
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+++ b/test/test_pcm_volume.cxx
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "test_pcm_all.hxx"
+#include "pcm/PcmVolume.hxx"
+#include "test_pcm_util.hxx"
+
+#include <glib.h>
+
+#include <algorithm>
+
+#include <string.h>
+
+void
+test_pcm_volume_8()
+{
+ constexpr unsigned N = 256;
+ static int8_t zero[N];
+ const auto src = TestDataBuffer<int8_t, N>();
+
+ int8_t dest[N];
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S8,
+ 0), ==, true);
+ g_assert_cmpint(memcmp(dest, zero, sizeof(zero)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S8,
+ PCM_VOLUME_1), ==, true);
+ g_assert_cmpint(memcmp(dest, src, sizeof(src)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S8,
+ PCM_VOLUME_1 / 2), ==, true);
+
+ for (unsigned i = 0; i < N; ++i) {
+ g_assert_cmpint(dest[i], >=, (src[i] - 1) / 2);
+ g_assert_cmpint(dest[i], <=, src[i] / 2 + 1);
+ }
+}
+
+void
+test_pcm_volume_16()
+{
+ constexpr unsigned N = 256;
+ static int16_t zero[N];
+ const auto src = TestDataBuffer<int16_t, N>();
+
+ int16_t dest[N];
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S16,
+ 0), ==, true);
+ g_assert_cmpint(memcmp(dest, zero, sizeof(zero)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S16,
+ PCM_VOLUME_1), ==, true);
+ g_assert_cmpint(memcmp(dest, src, sizeof(src)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S16,
+ PCM_VOLUME_1 / 2), ==, true);
+
+ for (unsigned i = 0; i < N; ++i) {
+ g_assert_cmpint(dest[i], >=, (src[i] - 1) / 2);
+ g_assert_cmpint(dest[i], <=, src[i] / 2 + 1);
+ }
+}
+
+void
+test_pcm_volume_24()
+{
+ constexpr unsigned N = 256;
+ static int32_t zero[N];
+ const auto src = TestDataBuffer<int32_t, N>(GlibRandomInt24());
+
+ int32_t dest[N];
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S24_P32,
+ 0), ==, true);
+ g_assert_cmpint(memcmp(dest, zero, sizeof(zero)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S24_P32,
+ PCM_VOLUME_1), ==, true);
+ g_assert_cmpint(memcmp(dest, src, sizeof(src)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S24_P32,
+ PCM_VOLUME_1 / 2), ==, true);
+
+ for (unsigned i = 0; i < N; ++i) {
+ g_assert_cmpint(dest[i], >=, (src[i] - 1) / 2);
+ g_assert_cmpint(dest[i], <=, src[i] / 2 + 1);
+ }
+}
+
+void
+test_pcm_volume_32()
+{
+ constexpr unsigned N = 256;
+ static int32_t zero[N];
+ const auto src = TestDataBuffer<int32_t, N>();
+
+ int32_t dest[N];
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S32,
+ 0), ==, true);
+ g_assert_cmpint(memcmp(dest, zero, sizeof(zero)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S32,
+ PCM_VOLUME_1), ==, true);
+ g_assert_cmpint(memcmp(dest, src, sizeof(src)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::S32,
+ PCM_VOLUME_1 / 2), ==, true);
+
+ for (unsigned i = 0; i < N; ++i) {
+ g_assert_cmpint(dest[i], >=, (src[i] - 1) / 2);
+ g_assert_cmpint(dest[i], <=, src[i] / 2 + 1);
+ }
+}
+
+void
+test_pcm_volume_float()
+{
+ constexpr unsigned N = 256;
+ static float zero[N];
+ const auto src = TestDataBuffer<float, N>(GlibRandomFloat());
+
+ float dest[N];
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::FLOAT,
+ 0), ==, true);
+ g_assert_cmpint(memcmp(dest, zero, sizeof(zero)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::FLOAT,
+ PCM_VOLUME_1), ==, true);
+ g_assert_cmpint(memcmp(dest, src, sizeof(src)), ==, 0);
+
+ std::copy(src.begin(), src.end(), dest);
+ g_assert_cmpint(pcm_volume(dest, sizeof(dest), SampleFormat::FLOAT,
+ PCM_VOLUME_1 / 2), ==, true);
+
+ for (unsigned i = 0; i < N; ++i)
+ g_assert_cmpfloat(dest[i], ==, src[i] / 2);
+}