Merge pull request #4671 from lioncash/nfp-copy

command_generator/nfp: Eliminate unnecessary copies

2 files changed, 25 insertions, 21 deletions

diff --git a/src/audio_core/command_generator.cpp b/src/audio_core/command_generator.cpp
index 84782cde6..8f7da49e6 100644
--- a/src/audio_core/command_generator.cpp
+++ b/src/audio_core/command_generator.cpp
@@ -196,7 +196,7 @@ void CommandGenerator::PreCommand() {
     for (std::size_t i = 0; i < splitter_context.GetInfoCount(); i++) {
         const auto& base = splitter_context.GetInfo(i);
         std::string graph = fmt::format("b[{}]", i);
-        auto* head = base.GetHead();
+        const auto* head = base.GetHead();
         while (head != nullptr) {
             graph += fmt::format("->{}", head->GetMixId());
             head = head->GetNextDestination();
@@ -214,7 +214,7 @@ void CommandGenerator::PostCommand() {
 
 void CommandGenerator::GenerateDataSourceCommand(ServerVoiceInfo& voice_info, VoiceState& dsp_state,
                                                  s32 channel) {
-    auto& in_params = voice_info.GetInParams();
+    const auto& in_params = voice_info.GetInParams();
     const auto depop = in_params.should_depop;
 
     if (depop) {
@@ -405,7 +405,7 @@ void CommandGenerator::GenerateBiquadFilterEffectCommand(s32 mix_buffer_offset,
 }
 
 void CommandGenerator::GenerateAuxCommand(s32 mix_buffer_offset, EffectBase* info, bool enabled) {
-    auto aux = dynamic_cast<EffectAuxInfo*>(info);
+    auto* aux = dynamic_cast<EffectAuxInfo*>(info);
     const auto& params = aux->GetParams();
     if (aux->GetSendBuffer() != 0 && aux->GetRecvBuffer() != 0) {
         const auto max_channels = params.count;
@@ -571,7 +571,7 @@ void CommandGenerator::GenerateSubMixCommand(ServerMixInfo& mix_info) {
     if (dumping_frame) {
         LOG_DEBUG(Audio, "(DSP_TRACE) GenerateSubMixCommand");
     }
-    auto& in_params = mix_info.GetInParams();
+    const auto& in_params = mix_info.GetInParams();
     GenerateDepopForMixBuffersCommand(in_params.buffer_count, in_params.buffer_offset,
                                       in_params.sample_rate);
 
@@ -650,7 +650,7 @@ void CommandGenerator::GenerateFinalMixCommand() {
         LOG_DEBUG(Audio, "(DSP_TRACE) GenerateFinalMixCommand");
     }
     auto& mix_info = mix_context.GetFinalMixInfo();
-    const auto in_params = mix_info.GetInParams();
+    const auto& in_params = mix_info.GetInParams();
 
     GenerateDepopForMixBuffersCommand(in_params.buffer_count, in_params.buffer_offset,
                                       in_params.sample_rate);
@@ -674,7 +674,7 @@ void CommandGenerator::GenerateFinalMixCommand() {
 
 s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_state,
                                   s32 sample_count, s32 channel, std::size_t mix_offset) {
-    auto& in_params = voice_info.GetInParams();
+    const auto& in_params = voice_info.GetInParams();
     const auto& wave_buffer = in_params.wave_buffer[dsp_state.wave_buffer_index];
     if (wave_buffer.buffer_address == 0) {
         return 0;
@@ -714,7 +714,7 @@ s32 CommandGenerator::DecodePcm16(ServerVoiceInfo& voice_info, VoiceState& dsp_s
 
 s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_state,
                                   s32 sample_count, s32 channel, std::size_t mix_offset) {
-    auto& in_params = voice_info.GetInParams();
+    const auto& in_params = voice_info.GetInParams();
     const auto& wave_buffer = in_params.wave_buffer[dsp_state.wave_buffer_index];
     if (wave_buffer.buffer_address == 0) {
         return 0;
@@ -766,8 +766,8 @@ s32 CommandGenerator::DecodeAdpcm(ServerVoiceInfo& voice_info, VoiceState& dsp_s
         val = std::clamp<s32>(val, -32768, 32767);
         // Advance output feedback.
         yn2 = yn1;
-        yn1 = val;
-        return static_cast<s16>(val);
+        yn1 = static_cast<s16>(val);
+        return yn1;
     };
 
     std::size_t buffer_offset{};
@@ -853,7 +853,7 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
                                              VoiceState& dsp_state, s32 channel,
                                              s32 target_sample_rate, s32 sample_count,
                                              s32 node_id) {
-    auto& in_params = voice_info.GetInParams();
+    const auto& in_params = voice_info.GetInParams();
     if (dumping_frame) {
         LOG_DEBUG(Audio,
                   "(DSP_TRACE) DecodeFromWaveBuffers, node_id={}, channel={}, "
@@ -867,7 +867,8 @@ void CommandGenerator::DecodeFromWaveBuffers(ServerVoiceInfo& voice_info, s32* o
         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) > (SCALED_MIX_BUFFER_SIZE - 4ULL)) {
+    if (dsp_state.fraction + sample_count * resample_rate >
+        static_cast<s32>(SCALED_MIX_BUFFER_SIZE - 4ULL)) {
         return;
     }
 
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index 5e2d769a4..a0469ffbd 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <array>
 #include <atomic>
 
 #include "common/logging/log.h"
@@ -72,10 +73,10 @@ private:
         std::array<u8, 10> uuid;
         u8 uuid_length; // TODO(ogniK): Figure out if this is actual the uuid length or does it
                         // mean something else
-        INSERT_PADDING_BYTES(0x15);
+        std::array<u8, 0x15> padding_1;
         u32_le protocol;
         u32_le tag_type;
-        INSERT_PADDING_BYTES(0x2c);
+        std::array<u8, 0x2c> padding_2;
     };
     static_assert(sizeof(TagInfo) == 0x54, "TagInfo is an invalid size");
 
@@ -213,13 +214,15 @@ private:
         LOG_DEBUG(Service_NFP, "called");
 
         IPC::ResponseBuilder rb{ctx, 2};
-        auto amiibo = nfp_interface.GetAmiiboBuffer();
-        TagInfo tag_info{};
-        tag_info.uuid = amiibo.uuid;
-        tag_info.uuid_length = static_cast<u8>(tag_info.uuid.size());
-
-        tag_info.protocol = 1; // TODO(ogniK): Figure out actual values
-        tag_info.tag_type = 2;
+        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
+        const TagInfo tag_info{
+            .uuid = amiibo.uuid,
+            .uuid_length = static_cast<u8>(tag_info.uuid.size()),
+            .padding_1 = {},
+            .protocol = 1, // TODO(ogniK): Figure out actual values
+            .tag_type = 2,
+            .padding_2 = {},
+        };
         ctx.WriteBuffer(tag_info);
         rb.Push(RESULT_SUCCESS);
     }
@@ -236,7 +239,7 @@ private:
         LOG_DEBUG(Service_NFP, "called");
 
         IPC::ResponseBuilder rb{ctx, 2};
-        auto amiibo = nfp_interface.GetAmiiboBuffer();
+        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
         ctx.WriteBuffer(amiibo.model_info);
         rb.Push(RESULT_SUCCESS);
     }