ngs2: report voice port routing and volume

Co-authored-by: Phr3d13 <phr3d13@gmail.com>

src/libs/libAudio.cpp

@@ -1163,6 +1163,7 @@ LIB_DEFINE(InitAudio_1_Ngs2) {
 	LIB_FUNC("-TOuuAQ-buE", Ngs2::Ngs2VoiceGetState);
 	LIB_FUNC("rEh728kXk3w", Ngs2::Ngs2VoiceGetStateFlags);
 	LIB_FUNC("9eic4AmjGVI", Ngs2::Ngs2VoiceQueryInfo);
+	LIB_FUNC("WCayTgob7-o", Ngs2::Ngs2VoiceGetPortInfo);
 	LIB_FUNC("i0VnXM-C9fc", Ngs2::Ngs2SystemRender);
 	LIB_FUNC("l4Q2dWEH6UM", Ngs2::Ngs2SystemSetGrainSamples);
 	LIB_FUNC("hyVLT2VlOYk", Ngs2::Ngs2ParseWaveformData);

src/libs/ngs2.cpp

@@ -2802,6 +2802,31 @@ int KYTY_SYSV_ABI Ngs2VoiceQueryInfo(uintptr_t voice_handle, uint32_t query_id,
 	return OK;
 }
 
+int KYTY_SYSV_ABI Ngs2VoiceGetPortInfo(uintptr_t voice_handle, uint32_t port, void* info,
+                                       size_t info_size) {
+	PRINT_NAME();
+
+	struct PortInfo {
+		int32_t   matrix;
+		float     volume;
+		uint32_t  delay_samples, input;
+		uintptr_t dest;
+	};
+	EXIT_NOT_IMPLEMENTED(voice_handle == 0 || info == nullptr || info_size != sizeof(PortInfo));
+
+	auto* voice = reinterpret_cast<Ngs2VoiceInternal*>(voice_handle);
+
+	Common::LockGuard lock(voice->rack->ngs->mutex);
+
+	EXIT_NOT_IMPLEMENTED(port >= voice->ports.size());
+	const auto& p = voice->ports[port];
+
+	*static_cast<PortInfo*>(info) = {p.matrix, p.volume, 0, p.input,
+	                                 reinterpret_cast<uintptr_t>(p.dest)};
+
+	return OK;
+}
+
 int KYTY_SYSV_ABI Ngs2SystemLock(uintptr_t system_handle) {
 	PRINT_NAME();
 

src/libs/ngs2.h

@@ -62,6 +62,8 @@ int KYTY_SYSV_ABI Ngs2VoiceGetState(uintptr_t voice_handle, Ngs2VoiceState* stat
 int KYTY_SYSV_ABI Ngs2VoiceGetStateFlags(uintptr_t voice_handle, uint32_t* state_flags);
 int KYTY_SYSV_ABI Ngs2VoiceQueryInfo(uintptr_t voice_handle, uint32_t query_id, void* info,
                                      size_t info_size);
+int KYTY_SYSV_ABI Ngs2VoiceGetPortInfo(uintptr_t voice_handle, uint32_t port, void* info,
+                                       size_t info_size);
 int KYTY_SYSV_ABI Ngs2SystemRender(uintptr_t system_handle, const Ngs2RenderBufferInfo* buffer_info,
                                    uint32_t num_buffer_info);
 int KYTY_SYSV_ABI Ngs2ParseWaveformData(const void* data, size_t data_size, Ngs2WaveformInfo* info);

tests/Ngs2SamplerTests.cpp

@@ -1165,6 +1165,22 @@ void TestSetupQuery() {
 	Check(info[0] == 2 && info[1] == 0, "setup query did not report the voice channels");
 }
 
+void TestPortInfo() {
+	Fixture           f(48000);
+	Ngs2VoiceInternal dest;
+	f.voice.ports.push_back({&dest, 1, 0.5f, 0});
+	struct {
+		int32_t   matrix;
+		float     volume;
+		uint32_t  delay_samples, input;
+		uintptr_t dest;
+	} info {99, 99, 99, 99, 99};
+	Ngs2VoiceGetPortInfo(reinterpret_cast<uintptr_t>(&f.voice), 0, &info, sizeof(info));
+	Check(info.matrix == 0 && info.volume == 0.5f && info.delay_samples == 0 && info.input == 1 &&
+	          info.dest == reinterpret_cast<uintptr_t>(&dest),
+	      "port info did not report the port routing and volume");
+}
+
 void TestPlayStateBeforeRender() {
 	Fixture       f(48000);
 	const int16_t pcm[] = {8192, -16384};
@@ -1896,6 +1912,7 @@ int main() {
 	TestMatrixOutputChannels();
 	TestCustomPcmStillPlays();
 	TestSetupQuery();
+	TestPortInfo();
 	TestPlayStateBeforeRender();
 	TestStatePublication();
 	TestStopThenPlayBeforeRender();