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.

8 files changed, 34 insertions, 25 deletions

diff --git a/src/audio_core/CMakeLists.txt b/src/audio_core/CMakeLists.txt
index cb00ef60e..6a7075f73 100644
--- a/src/audio_core/CMakeLists.txt
+++ b/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)
 
diff --git a/src/audio_core/command_generator.cpp b/src/audio_core/command_generator.cpp
index 8f7da49e6..7f2597257 100644
--- a/src/audio_core/command_generator.cpp
+++ b/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;
diff --git a/src/audio_core/effect_context.cpp b/src/audio_core/effect_context.cpp
index adfec3df5..4d9cdf524 100644
--- a/src/audio_core/effect_context.cpp
+++ b/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;
 }
 
diff --git a/src/audio_core/effect_context.h b/src/audio_core/effect_context.h
index c2d2aa3ba..2c4ce53ef 100644
--- a/src/audio_core/effect_context.h
+++ b/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{};
diff --git a/src/audio_core/info_updater.cpp b/src/audio_core/info_updater.cpp
index f53ce21a5..2940e53a9 100644
--- a/src/audio_core/info_updater.cpp
+++ b/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}",
diff --git a/src/audio_core/mix_context.cpp b/src/audio_core/mix_context.cpp
index 042891490..4bca72eb0 100644
--- a/src/audio_core/mix_context.cpp
+++ b/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;
         }
 
diff --git a/src/audio_core/splitter_context.cpp b/src/audio_core/splitter_context.cpp
index 79bb2f516..f21b53147 100644
--- a/src/audio_core/splitter_context.cpp
+++ b/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;
 }
 
diff --git a/src/audio_core/voice_context.cpp b/src/audio_core/voice_context.cpp
index 1d8f69844..863ac9267 100644
--- a/src/audio_core/voice_context.cpp
+++ b/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];
         }
     }