audio_core: Resolve sign conversion warnings

While were at it, we can also enable sign conversion warnings and other
common warnings as errors to prevent these from creeping back into the
codebase.

src/audio_core/CMakeLists.txt

@@ -44,6 +44,16 @@ add_library(audio_core STATIC
 
 create_target_directory_groups(audio_core)
 
+if (NOT MSVC)
+    target_compile_options(audio_core PRIVATE
+        -Werror=ignored-qualifiers
+        -Werror=implicit-fallthrough
+        -Werror=reorder
+        -Werror=sign-compare
+        -Werror=unused-variable
+    )
+endif()
+
 target_link_libraries(audio_core PUBLIC common core)
 target_link_libraries(audio_core PRIVATE SoundTouch)
 

src/audio_core/command_generator.cpp

@@ -152,7 +152,7 @@ void CommandGenerator::GenerateVoiceCommand(ServerVoiceInfo& voice_info) {
                     if (!destination_data->IsConfigured()) {
                         continue;
                     }
-                    if (destination_data->GetMixId() >= mix_context.GetCount()) {
+                    if (destination_data->GetMixId() >= static_cast<int>(mix_context.GetCount())) {
                         continue;
                     }
 
@@ -435,7 +435,7 @@ void CommandGenerator::GenerateAuxCommand(s32 mix_buffer_offset, EffectBase* inf
                     GetMixBuffer(output_index), worker_params.sample_count, offset, write_count);
                 memory.WriteBlock(aux->GetRecvInfo(), &recv_info, sizeof(AuxInfoDSP));
 
-                if (samples_read != worker_params.sample_count &&
+                if (samples_read != static_cast<int>(worker_params.sample_count) &&
                     samples_read <= params.sample_count) {
                     std::memset(GetMixBuffer(output_index), 0, params.sample_count - samples_read);
                 }
@@ -611,7 +611,8 @@ void CommandGenerator::GenerateMixCommands(ServerMixInfo& mix_info) {
             const auto& dest_mix = mix_context.GetInfo(destination_data->GetMixId());
             const auto& dest_in_params = dest_mix.GetInParams();
             const auto mix_index = (base - 1) % in_params.buffer_count + in_params.buffer_offset;
-            for (std::size_t i = 0; i < dest_in_params.buffer_count; i++) {
+            for (std::size_t i = 0; i < static_cast<std::size_t>(dest_in_params.buffer_count);
+                 i++) {
                 const auto mixed_volume = in_params.volume * destination_data->GetMixVolume(i);
                 if (mixed_volume != 0.0f) {
                     GenerateMixCommand(dest_in_params.buffer_offset + i, mix_index, mixed_volume,
@@ -704,7 +705,7 @@ s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_s
         std::vector<s16> buffer(samples_processed * channel_count);
         memory.ReadBlock(buffer_pos, buffer.data(), buffer.size() * sizeof(s16));
 
-        for (std::size_t i = 0; i < samples_processed; i++) {
+        for (std::size_t i = 0; i < static_cast<std::size_t>(samples_processed); i++) {
             sample_buffer[mix_offset + i] = buffer[i * channel_count + channel];
         }
     }
@@ -789,7 +790,7 @@ s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_s
             position_in_frame += 2;
 
             // Decode entire frame
-            if (remaining_samples >= SAMPLES_PER_FRAME) {
+            if (remaining_samples >= static_cast<int>(SAMPLES_PER_FRAME)) {
                 for (std::size_t i = 0; i < SAMPLES_PER_FRAME / 2; i++) {
 
                     // Sample 1
@@ -866,7 +867,6 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
     const auto resample_rate = static_cast<s32>(
         static_cast<float>(in_params.sample_rate) / static_cast<float>(target_sample_rate) *
         static_cast<float>(static_cast<s32>(in_params.pitch * 32768.0f)));
-    auto* output_base = output;
     if (dsp_state.fraction + sample_count * resample_rate >
         static_cast<s32>(SCALED_MIX_BUFFER_SIZE - 4ULL)) {
         return;

src/audio_core/effect_context.cpp

@@ -184,19 +184,19 @@ void EffectAuxInfo::UpdateForCommandGeneration() {
     }
 }
 
-const VAddr EffectAuxInfo::GetSendInfo() const {
+VAddr EffectAuxInfo::GetSendInfo() const {
     return send_info;
 }
 
-const VAddr EffectAuxInfo::GetSendBuffer() const {
+VAddr EffectAuxInfo::GetSendBuffer() const {
     return send_buffer;
 }
 
-const VAddr EffectAuxInfo::GetRecvInfo() const {
+VAddr EffectAuxInfo::GetRecvInfo() const {
     return recv_info;
 }
 
-const VAddr EffectAuxInfo::GetRecvBuffer() const {
+VAddr EffectAuxInfo::GetRecvBuffer() const {
     return recv_buffer;
 }
 

src/audio_core/effect_context.h

@@ -257,10 +257,10 @@ public:
 
     void Update(EffectInfo::InParams& in_params) override;
     void UpdateForCommandGeneration() override;
-    const VAddr GetSendInfo() const;
-    const VAddr GetSendBuffer() const;
-    const VAddr GetRecvInfo() const;
-    const VAddr GetRecvBuffer() const;
+    VAddr GetSendInfo() const;
+    VAddr GetSendBuffer() const;
+    VAddr GetRecvInfo() const;
+    VAddr GetRecvBuffer() const;
 
 private:
     VAddr send_info{};

src/audio_core/info_updater.cpp

@@ -64,7 +64,6 @@ bool InfoUpdater::UpdateBehaviorInfo(BehaviorInfo& in_behavior_info) {
 }
 
 bool InfoUpdater::UpdateMemoryPools(std::vector<ServerMemoryPoolInfo>& memory_pool_info) {
-    const auto force_mapping = behavior_info.IsMemoryPoolForceMappingEnabled();
     const auto memory_pool_count = memory_pool_info.size();
     const auto total_memory_pool_in = sizeof(ServerMemoryPoolInfo::InParams) * memory_pool_count;
     const auto total_memory_pool_out = sizeof(ServerMemoryPoolInfo::OutParams) * memory_pool_count;
@@ -174,7 +173,7 @@ bool InfoUpdater::UpdateVoices(VoiceContext& voice_context,
         }
         // Voice states for each channel
         std::array<VoiceState*, AudioCommon::MAX_CHANNEL_COUNT> voice_states{};
-        ASSERT(in_params.id < voice_count);
+        ASSERT(static_cast<std::size_t>(in_params.id) < voice_count);
 
         // Grab our current voice info
         auto& voice_info = voice_context.GetInfo(static_cast<std::size_t>(in_params.id));
@@ -352,8 +351,8 @@ ResultCode InfoUpdater::UpdateMixes(MixContext& mix_context, std::size_t mix_buf
         for (std::size_t i = 0; i < mix_count; i++) {
             const auto& in = mix_in_params[i];
             total_buffer_count += in.buffer_count;
-            if (in.dest_mix_id > mix_count && in.dest_mix_id != AudioCommon::NO_MIX &&
-                in.mix_id != AudioCommon::FINAL_MIX) {
+            if (static_cast<std::size_t>(in.dest_mix_id) > mix_count &&
+                in.dest_mix_id != AudioCommon::NO_MIX && in.mix_id != AudioCommon::FINAL_MIX) {
                 LOG_ERROR(
                     Audio,
                     "Invalid mix destination, mix_id={:X}, dest_mix_id={:X}, mix_buffer_count={:X}",

src/audio_core/mix_context.cpp

@@ -53,7 +53,7 @@ void MixContext::UpdateDistancesFromFinalMix() {
         auto mix_id = in_params.mix_id;
         // Needs to be referenced out of scope
         s32 distance_to_final_mix{AudioCommon::FINAL_MIX};
-        for (; distance_to_final_mix < info_count; distance_to_final_mix++) {
+        for (; distance_to_final_mix < static_cast<s32>(info_count); distance_to_final_mix++) {
             if (mix_id == AudioCommon::FINAL_MIX) {
                 // If we're at the final mix, we're done
                 break;
@@ -77,7 +77,7 @@ void MixContext::UpdateDistancesFromFinalMix() {
         }
 
         // If we're out of range for our distance, mark it as no final mix
-        if (distance_to_final_mix >= info_count) {
+        if (distance_to_final_mix >= static_cast<s32>(info_count)) {
             distance_to_final_mix = AudioCommon::NO_FINAL_MIX;
         }
 

src/audio_core/splitter_context.cpp

@@ -306,7 +306,7 @@ bool SplitterContext::UpdateInfo(const std::vector<u8>& input, std::size_t& inpu
             break;
         }
 
-        if (header.send_id < 0 || header.send_id > info_count) {
+        if (header.send_id < 0 || static_cast<std::size_t>(header.send_id) > info_count) {
             LOG_ERROR(Audio, "Bad splitter data id");
             break;
         }
@@ -348,7 +348,7 @@ bool SplitterContext::UpdateData(const std::vector<u8>& input, std::size_t& inpu
             break;
         }
 
-        if (header.splitter_id < 0 || header.splitter_id > data_count) {
+        if (header.splitter_id < 0 || static_cast<std::size_t>(header.splitter_id) > data_count) {
             LOG_ERROR(Audio, "Bad splitter data id");
             break;
         }
@@ -434,7 +434,7 @@ const std::vector<s32>& NodeStates::GetIndexList() const {
 }
 
 void NodeStates::PushTsortResult(s32 index) {
-    ASSERT(index < node_count);
+    ASSERT(index < static_cast<s32>(node_count));
     index_list[index_pos++] = index;
 }
 

src/audio_core/voice_context.cpp

@@ -488,11 +488,11 @@ s32 VoiceContext::DecodePcm16(s32* output_buffer, ServerWaveBuffer* wave_buffer,
 
     // Fast path
     if (channel_count == 1) {
-        for (std::size_t i = 0; i < samples_processed; i++) {
+        for (std::ptrdiff_t i = 0; i < samples_processed; i++) {
             output_buffer[i] = buffer_data[i];
         }
     } else {
-        for (std::size_t i = 0; i < samples_processed; i++) {
+        for (std::ptrdiff_t i = 0; i < samples_processed; i++) {
             output_buffer[i] = buffer_data[i * channel_count + channel];
         }
     }