97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
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#include <gtest/gtest.h>
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#include <string>
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#include <vector>
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#include <thread>
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#include <atomic>
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#include <mutex>
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#include <condition_variable>
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#ifdef _WIN32
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#define NOMINMAX
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#include <windows.h>
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#include <mmsystem.h>
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#endif
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#define private public
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#include <XCEngine/Audio/WindowsAudioBackend.h>
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#undef private
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using namespace XCEngine::Audio;
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namespace {
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#ifdef _WIN32
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TEST(WaveOutBackend, MasterVolumeIsClampedToValidRange) {
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WaveOut::WaveOutBackend backend;
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backend.SetMasterVolume(1.5f);
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EXPECT_FLOAT_EQ(backend.GetMasterVolume(), 1.0f);
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backend.SetMasterVolume(-0.5f);
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EXPECT_FLOAT_EQ(backend.GetMasterVolume(), 0.0f);
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}
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TEST(WaveOutBackend, ProcessAudioCopiesOnlyRequestedSamplesIntoPendingMixBuffer) {
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WaveOut::WaveOutBackend backend;
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backend.m_pendingMixBuffer.assign(8, 1.0f);
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float input[] = {0.25f, -0.5f, 0.75f, -1.0f};
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backend.ProcessAudio(input, 2, 2, 48000);
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ASSERT_EQ(backend.m_pendingMixBuffer.size(), 8u);
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EXPECT_TRUE(backend.m_hasPendingMix);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[0], 0.25f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[1], -0.5f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[2], 0.75f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[3], -1.0f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[4], 0.0f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[5], 0.0f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[6], 0.0f);
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EXPECT_FLOAT_EQ(backend.m_pendingMixBuffer[7], 0.0f);
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}
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TEST(WaveOutBackend, SetDeviceAcceptsDefaultDeviceBeforeInitialize) {
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WaveOut::WaveOutBackend backend;
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EXPECT_TRUE(backend.SetDevice("Default Device"));
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EXPECT_EQ(backend.m_deviceName, "Default Device");
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EXPECT_TRUE(backend.m_requestedDeviceName.empty());
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}
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TEST(WaveOutBackend, SetDeviceRejectsHotSwitchAfterOpen) {
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WaveOut::WaveOutBackend backend;
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backend.m_deviceName = "Default Device";
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backend.m_hWaveOut = reinterpret_cast<HWAVEOUT>(1);
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EXPECT_FALSE(backend.SetDevice("Some Other Device"));
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EXPECT_EQ(backend.m_deviceName, "Default Device");
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backend.m_hWaveOut = nullptr;
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}
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TEST(WaveOutBackend, FillPcm16BufferAppliesVolumeClampAndMute) {
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std::vector<float> input = {-2.0f, -0.5f, 0.5f, 2.0f};
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std::vector<int16_t> output(4, 123);
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WaveOut::WaveOutBackend::FillPcm16Buffer(output, input, 0.5f, false);
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ASSERT_EQ(output.size(), 4u);
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EXPECT_EQ(output[0], -32767);
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EXPECT_EQ(output[1], -8191);
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EXPECT_EQ(output[2], 8191);
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EXPECT_EQ(output[3], 32767);
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WaveOut::WaveOutBackend::FillPcm16Buffer(output, input, 1.0f, true);
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EXPECT_EQ(output[0], 0);
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EXPECT_EQ(output[1], 0);
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EXPECT_EQ(output[2], 0);
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EXPECT_EQ(output[3], 0);
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}
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#endif
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} // namespace
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