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test/test_pcm: use C++11 random instead of GLib

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This commit is contained in:
Max Kellermann 2013-10-19 15:05:48 +02:00
parent 8e063829c4
commit 7cb803ad5c
5 changed files with 28 additions and 20 deletions
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2
test/test_pcm_dither.cxx
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@ -25,7 +25,7 @@ void
PcmDitherTest::TestDither24() PcmDitherTest::TestDither24()
{ {
constexpr unsigned N = 256; constexpr unsigned N = 256;
const auto src = TestDataBuffer<int32_t, N>(GlibRandomInt24()); const auto src = TestDataBuffer<int32_t, N>(RandomInt24());
int16_t dest[N]; int16_t dest[N];
PcmDither dither; PcmDither dither;

4
test/test_pcm_mix.cxx
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@ -22,7 +22,7 @@
#include "test_pcm_util.hxx" #include "test_pcm_util.hxx"
#include "pcm/PcmMix.hxx" #include "pcm/PcmMix.hxx"
template<typename T, SampleFormat format, typename G=GlibRandomInt<T>> template<typename T, SampleFormat format, typename G=RandomInt<T>>
static void static void
TestPcmMix(G g=G()) TestPcmMix(G g=G())
{ {
@ -72,7 +72,7 @@ PcmMixTest::TestMix16()
void void
PcmMixTest::TestMix24() PcmMixTest::TestMix24()
{ {
TestPcmMix<int32_t, SampleFormat::S24_P32>(GlibRandomInt24()); TestPcmMix<int32_t, SampleFormat::S24_P32>(RandomInt24());
} }
void void

4
test/test_pcm_pack.cxx
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@ -22,13 +22,11 @@
#include "pcm/PcmPack.hxx" #include "pcm/PcmPack.hxx"
#include "system/ByteOrder.hxx" #include "system/ByteOrder.hxx"
#include <glib.h>
void void
PcmPackTest::TestPack24() PcmPackTest::TestPack24()
{ {
constexpr unsigned N = 256; constexpr unsigned N = 256;
const auto src = TestDataBuffer<int32_t, N>(GlibRandomInt24()); const auto src = TestDataBuffer<int32_t, N>(RandomInt24());
uint8_t dest[N * 3]; uint8_t dest[N * 3];
pcm_pack_24(dest, src.begin(), src.end()); pcm_pack_24(dest, src.begin(), src.end());

34
test/test_pcm_util.hxx
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@ -17,23 +17,28 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/ */
#include <glib.h>
#include <array> #include <array>
#include <random>
#include <stddef.h> #include <stddef.h>
#include <stdint.h> #include <stdint.h>
template<typename T> template<typename T>
struct GlibRandomInt { struct RandomInt {
T operator()() const { typedef std::minstd_rand Engine;
return T(g_random_int()); Engine engine;
static_assert(sizeof(T) <= sizeof(Engine::result_type),
"RNG result type too small");
T operator()() {
return T(random());
} }
}; };
struct GlibRandomInt24 : GlibRandomInt<int32_t> { struct RandomInt24 : RandomInt<int32_t> {
int32_t operator()() const { int32_t operator()() {
auto t = GlibRandomInt::operator()(); auto t = RandomInt::operator()();
t &= 0xffffff; t &= 0xffffff;
if (t & 0x800000) if (t & 0x800000)
t |= 0xff000000; t |= 0xff000000;
@ -41,9 +46,14 @@ struct GlibRandomInt24 : GlibRandomInt<int32_t> {
} }
}; };
struct GlibRandomFloat { struct RandomFloat {
float operator()() const { std::mt19937 gen;
return g_random_double_range(-1.0, 1.0); std::uniform_real_distribution<float> dis;
RandomFloat():gen(std::random_device()()), dis(-1.0, 1.0) {}
float operator()() {
return dis(gen);
} }
}; };
@ -56,7 +66,7 @@ public:
using std::array<T, N>::end; using std::array<T, N>::end;
using std::array<T, N>::operator[]; using std::array<T, N>::operator[];
template<typename G=GlibRandomInt<T>> template<typename G=RandomInt<T>>
TestDataBuffer(G g=G()):std::array<T, N>() { TestDataBuffer(G g=G()):std::array<T, N>() {
for (auto &i : *this) for (auto &i : *this)
i = g(); i = g();

4
test/test_pcm_volume.cxx
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@ -94,7 +94,7 @@ PcmVolumeTest::TestVolume24()
{ {
constexpr unsigned N = 256; constexpr unsigned N = 256;
static int32_t zero[N]; static int32_t zero[N];
const auto src = TestDataBuffer<int32_t, N>(GlibRandomInt24()); const auto src = TestDataBuffer<int32_t, N>(RandomInt24());
int32_t dest[N]; int32_t dest[N];
@ -158,7 +158,7 @@ PcmVolumeTest::TestVolumeFloat()
{ {
constexpr unsigned N = 256; constexpr unsigned N = 256;
static float zero[N]; static float zero[N];
const auto src = TestDataBuffer<float, N>(GlibRandomFloat()); const auto src = TestDataBuffer<float, N>(RandomFloat());
float dest[N]; float dest[N];