Add N64-VADPCM decoder; DSP-ADPCM seamless loop fix

CMakeLists.txt

@@ -26,7 +26,8 @@ set(SOURCES
     lib/EffectDelay.cpp
     lib/SurroundProfiles.cpp
     lib/ContainerRegistry.cpp
-    lib/dsp.c)
+    lib/DSPCodec.c
+    lib/N64MusyXCodec.c)
 
 set(HEADERS
     include/amuse/AudioGroup.hpp
@@ -55,7 +56,8 @@ set(HEADERS
     include/amuse/ContainerRegistry.hpp
     include/amuse/Common.hpp
     include/amuse/amuse.hpp
-    include/amuse/dsp.h)
+    include/amuse/DSPCodec.h
+    include/amuse/N64MusyXCodec.h)
 
 unset(EXTRAS)
 if(TARGET boo)

driver/main.cpp

@@ -586,7 +586,7 @@ struct AppCallback : boo::IApplicationCallback
         for (auto& grp : data)
         {
             /* Load project to assemble group list */
-            m_projs.emplace_back(grp.second.getProj());
+            m_projs.push_back(amuse::AudioGroupProject::CreateAudioGroupProject(grp.second));
             amuse::AudioGroupProject& proj = m_projs.back();
             totalGroups += proj.sfxGroups().size() + proj.songGroups().size();
 

include/amuse/AudioGroup.hpp

@@ -19,15 +19,19 @@ class AudioGroup
     AudioGroupPool m_pool;
     AudioGroupSampleDirectory m_sdir;
     const unsigned char* m_samp;
+    DataFormat m_fmt;
     bool m_valid;
 public:
     operator bool() const {return m_valid;}
-    AudioGroup(const AudioGroupData& data);
+    AudioGroup(const AudioGroupData& data, GCNDataTag);
+    AudioGroup(const AudioGroupData& data, N64DataTag);
+    AudioGroup(const AudioGroupData& data, PCDataTag);
 
     const Sample* getSample(int sfxId) const;
     const unsigned char* getSampleData(uint32_t offset) const;
     const AudioGroupProject& getProj() const {return m_proj;}
     const AudioGroupPool& getPool() const {return m_pool;}
+    DataFormat getDataFormat() const {return m_fmt;}
 };
 
 }

include/amuse/AudioGroupData.hpp

@@ -1,21 +1,36 @@
 #ifndef __AMUSE_AUDIOGROUPDATA_HPP__
 #define __AMUSE_AUDIOGROUPDATA_HPP__
 
+#include "Common.hpp"
+
 namespace amuse
 {
 
 /** Simple pointer-container of the four Audio Group chunks */
 class AudioGroupData
 {
+    friend class Engine;
+    friend class AudioGroupProject;
 protected:
     unsigned char* m_proj;
     unsigned char* m_pool;
     unsigned char* m_sdir;
     unsigned char* m_samp;
+    DataFormat m_fmt;
+
+    AudioGroupData(unsigned char* proj, unsigned char* pool,
+                   unsigned char* sdir, unsigned char* samp, DataFormat fmt)
+    : m_proj(proj), m_pool(pool), m_sdir(sdir), m_samp(samp), m_fmt(fmt) {}
 public:
     AudioGroupData(unsigned char* proj, unsigned char* pool,
-                   unsigned char* sdir, unsigned char* samp)
+                   unsigned char* sdir, unsigned char* samp, GCNDataTag)
-    : m_proj(proj), m_pool(pool), m_sdir(sdir), m_samp(samp) {}
+    : m_proj(proj), m_pool(pool), m_sdir(sdir), m_samp(samp), m_fmt(DataFormat::GCN) {}
+    AudioGroupData(unsigned char* proj, unsigned char* pool,
+                   unsigned char* sdir, unsigned char* samp, N64DataTag)
+    : m_proj(proj), m_pool(pool), m_sdir(sdir), m_samp(samp), m_fmt(DataFormat::N64) {}
+    AudioGroupData(unsigned char* proj, unsigned char* pool,
+                   unsigned char* sdir, unsigned char* samp, PCDataTag)
+    : m_proj(proj), m_pool(pool), m_sdir(sdir), m_samp(samp), m_fmt(DataFormat::PC) {}
 
     const unsigned char* getProj() const {return m_proj;}
     const unsigned char* getPool() const {return m_pool;}

include/amuse/AudioGroupPool.hpp

@@ -98,6 +98,7 @@ class AudioGroupPool
     std::unordered_map<ObjectId, std::vector<const LayerMapping*>> m_layers;
 public:
     AudioGroupPool(const unsigned char* data);
+    AudioGroupPool(const unsigned char* data, PCDataTag);
     const unsigned char* soundMacro(ObjectId id) const;
     const Keymap* keymap(ObjectId id) const;
     const std::vector<const LayerMapping*>* layer(ObjectId id) const;

include/amuse/AudioGroupProject.hpp

@@ -2,12 +2,14 @@
 #define __AMUSE_AUDIOGROUPPROJECT_HPP__
 
 #include "Entity.hpp"
+#include "Common.hpp"
 #include <vector>
 #include <array>
 #include <unordered_map>
 
 namespace amuse
 {
+class AudioGroupData;
 
 /** Common index members of SongGroups and SFXGroups */
 struct AudioGroupIndex
@@ -68,8 +70,19 @@ class AudioGroupProject
 {
     std::unordered_map<int, SongGroupIndex> m_songGroups;
     std::unordered_map<int, SFXGroupIndex> m_sfxGroups;
+
+    /* MusyX 1.0 structures converted to MusyX 2.0 structures for pointer-compatible access */
+    std::unique_ptr<SongGroupIndex::PageEntry[]> m_convNormalPages;
+    std::unique_ptr<SongGroupIndex::PageEntry[]> m_convDrumPages;
+    std::unique_ptr<std::array<SongGroupIndex::MIDISetup, 16>[]> m_convMidiSetups;
+    void _allocateConvBuffers(const unsigned char* data, N64DataTag);
+    void _allocateConvBuffers(const unsigned char* data, PCDataTag);
+
 public:
-    AudioGroupProject(const unsigned char* data);
+    AudioGroupProject(const unsigned char* data, GCNDataTag);
+    AudioGroupProject(const unsigned char* data, N64DataTag);
+    AudioGroupProject(const unsigned char* data, PCDataTag);
+    static AudioGroupProject CreateAudioGroupProject(const AudioGroupData& data);
 
     const SongGroupIndex* getSongGroupIndex(int groupId) const;
     const SFXGroupIndex* getSFXGroupIndex(int groupId) const;

include/amuse/AudioGroupSampleDirectory.hpp

@@ -3,6 +3,7 @@
 
 #include <unordered_map>
 #include <stdint.h>
+#include "Common.hpp"
 
 namespace amuse
 {
@@ -30,15 +31,17 @@ public:
         uint16_t m_bytesPerFrame;
         uint8_t m_ps;
         uint8_t m_lps;
-        int16_t m_hist1;
         int16_t m_hist2;
+        int16_t m_hist1;
         int16_t m_coefs[8][2];
         void swapBig();
     };
 private:
     std::unordered_map<uint16_t, std::pair<Entry, ADPCMParms>> m_entries;
 public:
-    AudioGroupSampleDirectory(const unsigned char* data);
+    AudioGroupSampleDirectory(const unsigned char* data, GCNDataTag);
+    AudioGroupSampleDirectory(const unsigned char* data, N64DataTag);
+    AudioGroupSampleDirectory(const unsigned char* data, PCDataTag);
 };
 
 }

include/amuse/Common.hpp

@@ -204,6 +204,23 @@ static inline double SBig(double val) {return val;}
 #endif
 #endif
 
+/** Versioned data format to interpret */
+enum class DataFormat
+{
+    GCN,
+    N64,
+    PC
+};
+
+/** Meta-type for selecting GameCube (MusyX 2.0) data formats */
+struct GCNDataTag {};
+
+/** Meta-type for selecting N64 (MusyX 1.0) data formats */
+struct N64DataTag {};
+
+/** Meta-type for selecting PC (MusyX 1.0) data formats */
+struct PCDataTag {};
+
 }
 
 #endif // __AMUSE_COMMON_HPP__

include/amuse/DSPCodec.h

@@ -1,5 +1,5 @@
-#ifndef _DSP_h
+#ifndef _DSPCODEC_h
-#define _DSP_h
+#define _DSPCODEC_h
 
 #ifdef __cplusplus
 extern "C" {
@@ -36,4 +36,4 @@ unsigned DSPDecompressFrameStateOnly(const uint8_t* in,
 }
 #endif
 
-#endif // _DSP_h
+#endif // _DSPCODEC_h

include/amuse/Engine.hpp

@@ -46,6 +46,7 @@ class Engine
     std::linear_congruential_engine<uint32_t, 0x41c64e6d, 0x3039, UINT32_MAX> m_random;
     int m_nextVid = 0;
 
+    AudioGroup* _addAudioGroup(const AudioGroupData& data, std::unique_ptr<AudioGroup>&& grp);
     std::pair<AudioGroup*, const SongGroupIndex*> _findSongGroup(int groupId) const;
     std::pair<AudioGroup*, const SFXGroupIndex*> _findSFXGroup(int groupId) const;
 

include/amuse/N64MusyXCodec.h

@@ -0,0 +1,29 @@
+#ifndef _N64MUSYXCODEC_h
+#define _N64MUSYXCODEC_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+static inline int16_t N64MusyXSampClamp(int32_t val)
+{
+    if (val < -32768) val = -32768;
+    else if (val > 32767) val = 32767;
+    return val;
+}
+
+unsigned N64MusyXDecompressFrame(int16_t* out, const uint8_t* in,
+                                 const int16_t coefs[8][2][8],
+                                 unsigned lastSample);
+
+unsigned N64MusyXDecompressFrameRanged(int16_t* out, const uint8_t* in,
+                                       const int16_t coefs[8][2][8],
+                                       unsigned firstSample, unsigned lastSample);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _N64MUSYXCODEC_h

include/amuse/SoundMacroState.hpp

@@ -215,9 +215,9 @@ class SoundMacroState
 
 public:
     /** initialize state for SoundMacro data at `ptr` */
-    void initialize(const unsigned char* ptr, int step);
+    void initialize(const unsigned char* ptr, int step, bool swapData);
     void initialize(const unsigned char* ptr, int step, double ticksPerSec,
-                    uint8_t midiKey, uint8_t midiVel, uint8_t midiMod);
+                    uint8_t midiKey, uint8_t midiVel, uint8_t midiMod, bool swapData);
 
     /** advances `dt` seconds worth of commands in the SoundMacro
      *  @return `true` if END reached

include/amuse/Voice.hpp

@@ -50,7 +50,8 @@ class Voice : public Entity
     {
         DSP,
         IMA,
-        PCM
+        PCM,
+        N64
     };
     const Sample* m_curSample = nullptr; /**< Current sample entry playing */
     const unsigned char* m_curSampleData = nullptr; /**< Current sample data playing */
@@ -128,7 +129,7 @@ class Voice : public Entity
 
     void _destroy();
     void _reset();
-    bool _checkSamplePos();
+    bool _checkSamplePos(bool& looped);
     void _doKeyOff();
     void _macroKeyOff();
     void _macroSampleEnd();
@@ -136,6 +137,7 @@ class Voice : public Entity
     void _setTotalPitch(int32_t cents, bool slew);
     bool _isRecursivelyDead();
     void _bringOutYourDead();
+    static uint32_t _GetBlockSampleCount(SampleFormat fmt);
     std::shared_ptr<Voice> _findVoice(int vid, std::weak_ptr<Voice> thisPtr);
     std::unique_ptr<int8_t[]>& _ensureCtrlVals();
 

lib/AudioGroup.cpp

@@ -4,11 +4,28 @@
 namespace amuse
 {
 
-AudioGroup::AudioGroup(const AudioGroupData& data)
+AudioGroup::AudioGroup(const AudioGroupData& data, GCNDataTag)
-: m_proj(data.getProj()),
+: m_proj(data.getProj(), GCNDataTag{}),
   m_pool(data.getPool()),
-  m_sdir(data.getSdir()),
+  m_sdir(data.getSdir(), GCNDataTag{}),
-  m_samp(data.getSamp())
+  m_samp(data.getSamp()),
+  m_fmt(DataFormat::GCN)
+{}
+
+AudioGroup::AudioGroup(const AudioGroupData& data, N64DataTag)
+: m_proj(data.getProj(), N64DataTag{}),
+  m_pool(data.getPool()),
+  m_sdir(data.getSdir(), N64DataTag{}),
+  m_samp(data.getSamp()),
+  m_fmt(DataFormat::N64)
+{}
+
+AudioGroup::AudioGroup(const AudioGroupData& data, PCDataTag)
+: m_proj(data.getProj(), PCDataTag{}),
+  m_pool(data.getPool(), PCDataTag{}),
+  m_sdir(data.getSdir(), PCDataTag{}),
+  m_samp(data.getSamp()),
+  m_fmt(DataFormat::PC)
 {}
 
 const Sample* AudioGroup::getSample(int sfxId) const

lib/AudioGroupData.cpp

@@ -15,7 +15,7 @@ IntrusiveAudioGroupData::~IntrusiveAudioGroupData()
 }
 
 IntrusiveAudioGroupData::IntrusiveAudioGroupData(IntrusiveAudioGroupData&& other)
-: AudioGroupData(other.m_proj, other.m_pool, other.m_sdir, other.m_samp)
+: AudioGroupData(other.m_proj, other.m_pool, other.m_sdir, other.m_samp, other.m_fmt)
 {
     m_owns = other.m_owns;
     other.m_owns = false;

lib/AudioGroupPool.cpp

@@ -81,6 +81,66 @@ AudioGroupPool::AudioGroupPool(const unsigned char* data)
     }
 }
 
+AudioGroupPool::AudioGroupPool(const unsigned char* data, PCDataTag)
+{
+    const Header* head = reinterpret_cast<const Header*>(data);
+
+    if (head->soundMacrosOffset)
+    {
+        const unsigned char* cur = data + head->soundMacrosOffset;
+        while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+        {
+            uint32_t size = *reinterpret_cast<const uint32_t*>(cur);
+            ObjectId id = *reinterpret_cast<const ObjectId*>(cur + 4);
+            m_soundMacros[id] = cur;
+            cur += size;
+        }
+    }
+
+    if (head->tablesOffset)
+    {
+        const unsigned char* cur = data + head->tablesOffset;
+        while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+        {
+            uint32_t size = *reinterpret_cast<const uint32_t*>(cur);
+            ObjectId id = *reinterpret_cast<const ObjectId*>(cur + 4);
+            m_tables[id] = cur + 8;
+            cur += size;
+        }
+    }
+
+    if (head->keymapsOffset)
+    {
+        const unsigned char* cur = data + head->keymapsOffset;
+        while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+        {
+            uint32_t size = *reinterpret_cast<const uint32_t*>(cur);
+            ObjectId id = *reinterpret_cast<const ObjectId*>(cur + 4);
+            m_keymaps[id] = reinterpret_cast<const Keymap*>(cur + 8);
+            cur += size;
+        }
+    }
+
+    if (head->layersOffset)
+    {
+        const unsigned char* cur = data + head->layersOffset;
+        while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+        {
+            uint32_t size = *reinterpret_cast<const uint32_t*>(cur);
+            ObjectId id = *reinterpret_cast<const ObjectId*>(cur + 4);
+            std::vector<const LayerMapping*>& mappingsOut = m_layers[id];
+
+            uint32_t count = *reinterpret_cast<const uint32_t*>(cur+8);
+            mappingsOut.reserve(count);
+            const unsigned char* subcur = cur + 12;
+            for (int i=0 ; i<count ; ++i)
+                mappingsOut.push_back(reinterpret_cast<const LayerMapping*>(subcur + i * 12));
+
+            cur += size;
+        }
+    }
+}
+
 const unsigned char* AudioGroupPool::soundMacro(ObjectId id) const
 {
     auto search = m_soundMacros.find(id);

lib/AudioGroupProject.cpp

@@ -1,4 +1,5 @@
 #include "amuse/AudioGroupProject.hpp"
+#include "amuse/AudioGroupData.hpp"
 #include "amuse/Common.hpp"
 #include <stdint.h>
 
@@ -41,7 +42,7 @@ struct GroupHeader
     }
 };
 
-AudioGroupProject::AudioGroupProject(const unsigned char* data)
+AudioGroupProject::AudioGroupProject(const unsigned char* data, GCNDataTag)
 {
     const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
     while (group->groupEndOff != 0xffffffff)
@@ -114,6 +115,340 @@ AudioGroupProject::AudioGroupProject(const unsigned char* data)
     }
 }
 
+struct MusyX1PageEntry
+{
+    ObjectId objId;
+    uint8_t priority;
+    uint8_t maxVoices;
+    uint8_t unk;
+    uint8_t programNo;
+    uint8_t pad[2];
+
+    void setIntoMusyX2(SongGroupIndex::PageEntry& ent) const
+    {
+        ent.objId = objId;
+        ent.priority = priority;
+        ent.maxVoices = maxVoices;
+        ent.programNo = programNo;
+    }
+};
+
+struct MusyX1MIDISetup
+{
+    uint8_t programNo;
+    uint8_t volume;
+    uint8_t panning;
+    uint8_t reverb;
+    uint8_t chorus;
+    uint8_t pad[3];
+
+    void setIntoMusyX2(SongGroupIndex::MIDISetup& ent) const
+    {
+        ent.programNo = programNo;
+        ent.volume = volume;
+        ent.panning = panning;
+        ent.reverb = reverb;
+        ent.chorus = chorus;
+    }
+};
+
+void AudioGroupProject::_allocateConvBuffers(const unsigned char* data, N64DataTag)
+{
+    size_t normPageCount = 0;
+    size_t drumPageCount = 0;
+    size_t midiSetupCount = 0;
+
+    const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
+    while (group->groupEndOff != 0xffffffff)
+    {
+        const unsigned char* subData = data + 8;
+        GroupHeader header = *group;
+        header.swapBig();
+
+        if (header.type == GroupType::Song)
+        {
+            /* Normal pages */
+            const MusyX1PageEntry* normEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + header.pageTableOff);
+            while (normEntries->objId != 0xffff)
+            {
+                ++normPageCount;
+                ++normEntries;
+            }
+
+            /* Drum pages */
+            const MusyX1PageEntry* drumEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + header.drumTableOff);
+            while (drumEntries->objId != 0xffff)
+            {
+                ++drumPageCount;
+                ++drumEntries;
+            }
+
+            /* MIDI setups */
+            const uint8_t* setupData = subData + header.midiSetupsOff;
+            const uint8_t* setupEnd = subData + header.groupEndOff;
+            while (setupData < setupEnd)
+            {
+                ++midiSetupCount;
+                setupData += 8 * 16 + 4;
+            }
+        }
+
+        data += header.groupEndOff;
+        group = reinterpret_cast<const GroupHeader*>(data);
+    }
+
+    if (normPageCount)
+        m_convNormalPages.reset(new SongGroupIndex::PageEntry[normPageCount]);
+    if (drumPageCount)
+        m_convDrumPages.reset(new SongGroupIndex::PageEntry[drumPageCount]);
+    if (midiSetupCount)
+        m_convMidiSetups.reset(new std::array<SongGroupIndex::MIDISetup, 16>[midiSetupCount]);
+}
+
+AudioGroupProject::AudioGroupProject(const unsigned char* data, N64DataTag)
+{
+    _allocateConvBuffers(data, N64DataTag{});
+    SongGroupIndex::PageEntry* normPagesBuf = m_convNormalPages.get();
+    SongGroupIndex::PageEntry* drumPagesBuf = m_convDrumPages.get();
+    std::array<SongGroupIndex::MIDISetup, 16>* midiSetupsBuf = m_convMidiSetups.get();
+
+    const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
+    while (group->groupEndOff != 0xffffffff)
+    {
+        const unsigned char* subData = data + 8;
+        GroupHeader header = *group;
+        header.swapBig();
+
+        AudioGroupIndex* bIdx = nullptr;
+
+        if (header.type == GroupType::Song)
+        {
+            SongGroupIndex& idx = m_songGroups[header.groupId];
+            bIdx = &idx;
+
+            /* Normal pages */
+            const MusyX1PageEntry* normEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + header.pageTableOff);
+            while (normEntries->objId != 0xffff)
+            {
+                normEntries->setIntoMusyX2(*normPagesBuf);
+                idx.m_normPages[normEntries->programNo] = normPagesBuf;
+                ++normEntries;
+                ++normPagesBuf;
+            }
+
+            /* Drum pages */
+            const MusyX1PageEntry* drumEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + header.drumTableOff);
+            while (drumEntries->objId != 0xffff)
+            {
+                drumEntries->setIntoMusyX2(*drumPagesBuf);
+                idx.m_drumPages[drumEntries->programNo] = drumPagesBuf;
+                ++drumEntries;
+                ++drumPagesBuf;
+            }
+
+            /* MIDI setups */
+            const uint8_t* setupData = subData + header.midiSetupsOff;
+            const uint8_t* setupEnd = subData + header.groupEndOff;
+            while (setupData < setupEnd)
+            {
+                uint16_t songId = SBig(*reinterpret_cast<const uint16_t*>(setupData));
+                const std::array<MusyX1MIDISetup, 16>* midiSetups =
+                    reinterpret_cast<const std::array<MusyX1MIDISetup, 16>*>(setupData + 4);
+
+                for (int i=0 ; i<16 ; ++i)
+                    (*midiSetups)[i].setIntoMusyX2((*midiSetupsBuf)[i]);
+
+                idx.m_midiSetups[songId] = midiSetupsBuf;
+                setupData += 8 * 16 + 4;
+                ++midiSetupsBuf;
+            }
+        }
+        else if (header.type == GroupType::SFX)
+        {
+            SFXGroupIndex& idx = m_sfxGroups[header.groupId];
+            bIdx = &idx;
+
+            /* SFX entries */
+            uint16_t count = SBig(*reinterpret_cast<const uint16_t*>(subData + header.pageTableOff));
+            idx.m_sfxEntries.reserve(count);
+            for (int i=0 ; i<count ; ++i)
+            {
+                const SFXGroupIndex::SFXEntry* entries =
+                    reinterpret_cast<const SFXGroupIndex::SFXEntry*>(subData + header.pageTableOff + 4 + i * 12);
+                idx.m_sfxEntries[SBig(entries->defineId)] = entries;
+            }
+        }
+
+        if (bIdx)
+        {
+            bIdx->m_soundMacroIndex = reinterpret_cast<const uint16_t*>(subData + header.soundMacroIdsOff);
+            bIdx->m_tablesIndex = reinterpret_cast<const uint16_t*>(subData + header.tableIdsOff);
+            bIdx->m_keymapsIndex = reinterpret_cast<const uint16_t*>(subData + header.keymapIdsOff);
+            bIdx->m_layersIndex = reinterpret_cast<const uint16_t*>(subData + header.layerIdsOff);
+        }
+
+        data += header.groupEndOff;
+        group = reinterpret_cast<const GroupHeader*>(data);
+    }
+}
+
+void AudioGroupProject::_allocateConvBuffers(const unsigned char* data, PCDataTag)
+{
+    size_t normPageCount = 0;
+    size_t drumPageCount = 0;
+    size_t midiSetupCount = 0;
+
+    const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
+    while (group->groupEndOff != 0xffffffff)
+    {
+        const unsigned char* subData = data + 8;
+
+        if (group->type == GroupType::Song)
+        {
+            /* Normal pages */
+            const MusyX1PageEntry* normEntries =
+            reinterpret_cast<const MusyX1PageEntry*>(subData + group->pageTableOff);
+            while (normEntries->objId != 0xffff)
+            {
+                ++normPageCount;
+                ++normEntries;
+            }
+
+            /* Drum pages */
+            const MusyX1PageEntry* drumEntries =
+            reinterpret_cast<const MusyX1PageEntry*>(subData + group->drumTableOff);
+            while (drumEntries->objId != 0xffff)
+            {
+                ++drumPageCount;
+                ++drumEntries;
+            }
+
+            /* MIDI setups */
+            const uint8_t* setupData = subData + group->midiSetupsOff;
+            const uint8_t* setupEnd = subData + group->groupEndOff;
+            while (setupData < setupEnd)
+            {
+                ++midiSetupCount;
+                setupData += 8 * 16 + 4;
+            }
+        }
+
+        data += group->groupEndOff;
+        group = reinterpret_cast<const GroupHeader*>(data);
+    }
+
+    if (normPageCount)
+        m_convNormalPages.reset(new SongGroupIndex::PageEntry[normPageCount]);
+    if (drumPageCount)
+        m_convDrumPages.reset(new SongGroupIndex::PageEntry[drumPageCount]);
+    if (midiSetupCount)
+        m_convMidiSetups.reset(new std::array<SongGroupIndex::MIDISetup, 16>[midiSetupCount]);
+}
+
+AudioGroupProject::AudioGroupProject(const unsigned char* data, PCDataTag)
+{
+    _allocateConvBuffers(data, PCDataTag{});
+    SongGroupIndex::PageEntry* normPagesBuf = m_convNormalPages.get();
+    SongGroupIndex::PageEntry* drumPagesBuf = m_convDrumPages.get();
+    std::array<SongGroupIndex::MIDISetup, 16>* midiSetupsBuf = m_convMidiSetups.get();
+
+    const GroupHeader* group = reinterpret_cast<const GroupHeader*>(data);
+    while (group->groupEndOff != 0xffffffff)
+    {
+        const unsigned char* subData = data + 8;
+
+        AudioGroupIndex* bIdx = nullptr;
+
+        if (group->type == GroupType::Song)
+        {
+            SongGroupIndex& idx = m_songGroups[group->groupId];
+            bIdx = &idx;
+
+            /* Normal pages */
+            const MusyX1PageEntry* normEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + group->pageTableOff);
+            while (normEntries->objId != 0xffff)
+            {
+                normEntries->setIntoMusyX2(*normPagesBuf);
+                idx.m_normPages[normEntries->programNo] = normPagesBuf;
+                ++normEntries;
+                ++normPagesBuf;
+            }
+
+            /* Drum pages */
+            const MusyX1PageEntry* drumEntries =
+                reinterpret_cast<const MusyX1PageEntry*>(subData + group->drumTableOff);
+            while (drumEntries->objId != 0xffff)
+            {
+                drumEntries->setIntoMusyX2(*drumPagesBuf);
+                idx.m_drumPages[drumEntries->programNo] = drumPagesBuf;
+                ++drumEntries;
+                ++drumPagesBuf;
+            }
+
+            /* MIDI setups */
+            const uint8_t* setupData = subData + group->midiSetupsOff;
+            const uint8_t* setupEnd = subData + group->groupEndOff;
+            while (setupData < setupEnd)
+            {
+                uint16_t songId = SBig(*reinterpret_cast<const uint16_t*>(setupData));
+                const std::array<MusyX1MIDISetup, 16>* midiSetups =
+                    reinterpret_cast<const std::array<MusyX1MIDISetup, 16>*>(setupData + 4);
+
+                for (int i=0 ; i<16 ; ++i)
+                    (*midiSetups)[i].setIntoMusyX2((*midiSetupsBuf)[i]);
+
+                idx.m_midiSetups[songId] = midiSetupsBuf;
+                setupData += 8 * 16 + 4;
+                ++midiSetupsBuf;
+            }
+        }
+        else if (group->type == GroupType::SFX)
+        {
+            SFXGroupIndex& idx = m_sfxGroups[group->groupId];
+            bIdx = &idx;
+
+            /* SFX entries */
+            uint16_t count = *reinterpret_cast<const uint16_t*>(subData + group->pageTableOff);
+            idx.m_sfxEntries.reserve(count);
+            for (int i=0 ; i<count ; ++i)
+            {
+                const SFXGroupIndex::SFXEntry* entries =
+                reinterpret_cast<const SFXGroupIndex::SFXEntry*>(subData + group->pageTableOff + 4 + i * 12);
+                idx.m_sfxEntries[entries->defineId] = entries;
+            }
+        }
+
+        if (bIdx)
+        {
+            bIdx->m_soundMacroIndex = reinterpret_cast<const uint16_t*>(subData + group->soundMacroIdsOff);
+            bIdx->m_tablesIndex = reinterpret_cast<const uint16_t*>(subData + group->tableIdsOff);
+            bIdx->m_keymapsIndex = reinterpret_cast<const uint16_t*>(subData + group->keymapIdsOff);
+            bIdx->m_layersIndex = reinterpret_cast<const uint16_t*>(subData + group->layerIdsOff);
+        }
+
+        data += group->groupEndOff;
+        group = reinterpret_cast<const GroupHeader*>(data);
+    }
+}
+
+AudioGroupProject AudioGroupProject::CreateAudioGroupProject(const AudioGroupData& data)
+{
+    switch (data.m_fmt)
+    {
+    case DataFormat::GCN:
+        return AudioGroupProject(data.getProj(), GCNDataTag{});
+    case DataFormat::N64:
+        return AudioGroupProject(data.getProj(), N64DataTag{});
+    case DataFormat::PC:
+        return AudioGroupProject(data.getProj(), PCDataTag{});
+    }
+}
+
 const SongGroupIndex* AudioGroupProject::getSongGroupIndex(int groupId) const
 {
     auto search = m_songGroups.find(groupId);

lib/AudioGroupSampleDirectory.cpp

@@ -19,8 +19,8 @@ void AudioGroupSampleDirectory::Entry::swapBig()
 void AudioGroupSampleDirectory::ADPCMParms::swapBig()
 {
     m_bytesPerFrame = SBig(m_bytesPerFrame);
-    m_hist1 = SBig(m_hist1);
     m_hist2 = SBig(m_hist2);
+    m_hist1 = SBig(m_hist1);
     for (int i=0 ; i<8 ; ++i)
     {
         m_coefs[i][0] = SBig(m_coefs[i][0]);
@@ -28,7 +28,7 @@ void AudioGroupSampleDirectory::ADPCMParms::swapBig()
     }
 }
 
-AudioGroupSampleDirectory::AudioGroupSampleDirectory(const unsigned char* data)
+AudioGroupSampleDirectory::AudioGroupSampleDirectory(const unsigned char* data, GCNDataTag)
 {
     const unsigned char* cur = data;
     while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
@@ -53,4 +53,66 @@ AudioGroupSampleDirectory::AudioGroupSampleDirectory(const unsigned char* data)
     }
 }
 
+struct MusyX1SdirEntry
+{
+    uint16_t m_sfxId;
+    uint32_t m_sampleOff;
+    uint32_t m_pitchSampleRate;
+    uint32_t m_numSamples;
+    uint32_t m_loopStartSample;
+    uint32_t m_loopLengthSamples;
+
+    void swapBig()
+    {
+        m_sfxId = SBig(m_sfxId);
+        m_sampleOff = SBig(m_sampleOff);
+        m_pitchSampleRate = SBig(m_pitchSampleRate);
+        m_numSamples = SBig(m_numSamples);
+        m_loopStartSample = SBig(m_loopStartSample);
+        m_loopLengthSamples = SBig(m_loopLengthSamples);
+    }
+
+    void setIntoMusyX2(AudioGroupSampleDirectory::Entry& ent) const
+    {
+        ent.m_sfxId = m_sfxId;
+        ent.m_sampleOff = m_sampleOff;
+        ent.m_unk = 0;
+        ent.m_pitch = m_pitchSampleRate >> 24;
+        ent.m_sampleRate = m_pitchSampleRate & 0xffff;
+        ent.m_numSamples = m_numSamples;
+        ent.m_loopStartSample = m_loopStartSample;
+        ent.m_loopLengthSamples = m_loopLengthSamples;
+        ent.m_adpcmParmOffset = 0;
+    }
+};
+
+AudioGroupSampleDirectory::AudioGroupSampleDirectory(const unsigned char* data, N64DataTag)
+{
+    const unsigned char* cur = data;
+    while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+    {
+        MusyX1SdirEntry ent = *reinterpret_cast<const MusyX1SdirEntry*>(cur);
+        ent.swapBig();
+
+        std::pair<Entry, ADPCMParms>& store = m_entries[ent.m_sfxId];
+        ent.setIntoMusyX2(store.first);
+
+        cur += 24;
+    }
+}
+
+AudioGroupSampleDirectory::AudioGroupSampleDirectory(const unsigned char* data, PCDataTag)
+{
+    const unsigned char* cur = data;
+    while (*reinterpret_cast<const uint32_t*>(cur) != 0xffffffff)
+    {
+        const MusyX1SdirEntry* ent = reinterpret_cast<const MusyX1SdirEntry*>(cur);
+
+        std::pair<Entry, ADPCMParms>& store = m_entries[ent->m_sfxId];
+        ent->setIntoMusyX2(store.first);
+
+        cur += 24;
+    }
+}
+
 }

lib/ContainerRegistry.cpp

@@ -228,7 +228,7 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadMP1(FILE
                         fread(sdir.get(), 1, len, fp);
 
                         ret.emplace_back(std::move(name), IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                                                  sdir.release(), samp.release()});
+                                                                                  sdir.release(), samp.release(), GCNDataTag{}});
                     }
                 }
                 FSeek(fp, origPos, SEEK_SET);
@@ -379,7 +379,8 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadMP2(FILE
                         fread(pool.get(), 1, sampSz, fp);
 
                         ret.emplace_back(std::move(name), IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                                                  sdir.release(), samp.release()});                    }
+                                                                                  sdir.release(), samp.release(), GCNDataTag{}});
+                    }
                 }
                 FSeek(fp, origPos, SEEK_SET);
             }
@@ -503,7 +504,7 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadRS1PC(FI
             }
             
             ret.emplace_back("Group", IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                              sdir.release(), samp.release()});
+                                                              sdir.release(), samp.release(), PCDataTag{}});
         }
     }
 
@@ -513,6 +514,15 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadRS1PC(FI
 static bool ValidateRS1N64(FILE* fp)
 {
     size_t endPos = FileLength(fp);
+    if (endPos > 32 * 1024 * 1024)
+        return false; /* N64 ROM definitely won't exceed 32MB */
+
+    FSeek(fp, 59, SEEK_SET);
+    uint32_t gameId;
+    fread(&gameId, 1, 4, fp);
+    if (gameId != 0x4e525345 && gameId != 0x4553524e)
+        return false; /* GameId not 'NRSE' */
+    FSeek(fp, 0, SEEK_SET);
 
     std::unique_ptr<uint8_t[]> data(new uint8_t[endPos]);
     fread(data.get(), 1, endPos, fp);
@@ -646,6 +656,9 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadRS1N64(F
                 }
             }
         }
+
+        ret.emplace_back("Group", IntrusiveAudioGroupData{proj.release(), pool.release(),
+                                                          sdir.release(), samp.release(), N64DataTag{}});
     }
 
     return ret;
@@ -773,7 +786,7 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadRS2(FILE
                 char name[128];
                 snprintf(name, 128, "GroupFile%u", j);
                 ret.emplace_back(name, IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                               sdir.release(), samp.release()});
+                                                               sdir.release(), samp.release(), GCNDataTag{}});
             }
 
             break;
@@ -879,7 +892,7 @@ static std::vector<std::pair<std::string, IntrusiveAudioGroupData>> LoadRS3(FILE
                 char name[128];
                 snprintf(name, 128, "GroupFile%u", j);
                 ret.emplace_back(name, IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                               sdir.release(), samp.release()});
+                                                               sdir.release(), samp.release(), GCNDataTag{}});
             }
 
             break;
@@ -1086,8 +1099,18 @@ ContainerRegistry::LoadContainer(const char* path)
         fread(samp.get(), 1, fLen, fp);
 
         fclose(fp);
+
+        /* SDIR-based format detection */
+        if (*reinterpret_cast<uint32_t*>(sdir.get() + 8) == 0x0)
             ret.emplace_back("Group", IntrusiveAudioGroupData{proj.release(), pool.release(),
-                                                          sdir.release(), samp.release()});
+                                                              sdir.release(), samp.release(), GCNDataTag{}});
+        else if (sdir[9] == 0x0)
+            ret.emplace_back("Group", IntrusiveAudioGroupData{proj.release(), pool.release(),
+                                                              sdir.release(), samp.release(), N64DataTag{}});
+        else
+            ret.emplace_back("Group", IntrusiveAudioGroupData{proj.release(), pool.release(),
+                                                              sdir.release(), samp.release(), PCDataTag{}});
+
         return ret;
     }
 

lib/DSPCodec.c

@@ -1,4 +1,4 @@
-#include "amuse/dsp.h"
+#include "amuse/DSPCodec.h"
 
 static const int32_t NibbleToInt[16] = {0,1,2,3,4,5,6,7,-8,-7,-6,-5,-4,-3,-2,-1};
 

lib/Engine.cpp

@@ -176,14 +176,8 @@ void Engine::pumpEngine()
     m_nextVid = maxVid + 1;
 }
 
-/** Add audio group data pointers to engine; must remain resident! */
+AudioGroup* Engine::_addAudioGroup(const AudioGroupData& data, std::unique_ptr<AudioGroup>&& grp)
-const AudioGroup* Engine::addAudioGroup(const AudioGroupData& data)
 {
-    removeAudioGroup(data);
-
-    std::unique_ptr<AudioGroup> grp = std::make_unique<AudioGroup>(data);
-    if (!grp)
-        return nullptr;
     AudioGroup* ret = grp.get();
     m_audioGroups.emplace(std::make_pair(&data, std::move(grp)));
 
@@ -199,6 +193,30 @@ const AudioGroup* Engine::addAudioGroup(const AudioGroupData& data)
     return ret;
 }
 
+/** Add GameCube audio group data pointers to engine; must remain resident! */
+const AudioGroup* Engine::addAudioGroup(const AudioGroupData& data)
+{
+    removeAudioGroup(data);
+
+    std::unique_ptr<AudioGroup> grp;
+    switch (data.m_fmt)
+    {
+    case DataFormat::GCN:
+        grp = std::make_unique<AudioGroup>(data, GCNDataTag{});
+        break;
+    case DataFormat::N64:
+        grp = std::make_unique<AudioGroup>(data, N64DataTag{});
+        break;
+    case DataFormat::PC:
+        grp = std::make_unique<AudioGroup>(data, PCDataTag{});
+        break;
+    }
+    if (!grp)
+        return nullptr;
+
+    return _addAudioGroup(data, std::move(grp));
+}
+
 /** Remove audio group from engine */
 void Engine::removeAudioGroup(const AudioGroupData& data)
 {
@@ -331,11 +349,14 @@ std::shared_ptr<Voice> Engine::fxStart(int sfxId, float vol, float pan, Submix*
 
     std::shared_ptr<Voice> ret = _allocateVoice(*grp, std::get<1>(search->second),
                                                 32000.0, true, false, smx);
-    if (!ret->loadSoundObject(SBig(entry->objId), 0, 1000.f, entry->defKey, entry->defVel, 0))
+
+    ObjectId oid = (grp->getDataFormat() == DataFormat::PC) ? entry->objId : SBig(entry->objId);
+    if (!ret->loadSoundObject(oid, 0, 1000.f, entry->defKey, entry->defVel, 0))
     {
         _destroyVoice(ret.get());
         return {};
     }
+
     ret->setVolume(vol);
     ret->setPan(pan);
     return ret;
@@ -358,12 +379,15 @@ std::shared_ptr<Emitter> Engine::addEmitter(const Vector3f& pos, const Vector3f&
                                                 32000.0, true, true, smx);
     m_activeEmitters.emplace(m_activeEmitters.end(), new Emitter(*this, *grp, std::move(vox)));
     Emitter& ret = *m_activeEmitters.back();
-    if (!ret.getVoice()->loadSoundObject(entry->objId, 0, 1000.f, entry->defKey, entry->defVel, 0))
+
+    ObjectId oid = (grp->getDataFormat() == DataFormat::PC) ? entry->objId : SBig(entry->objId);
+    if (!ret.getVoice()->loadSoundObject(oid, 0, 1000.f, entry->defKey, entry->defVel, 0))
     {
         ret._destroy();
         m_activeEmitters.pop_back();
         return {};
     }
+
     vox->setPan(entry->panning);
     ret.setPos(pos);
     ret.setDir(dir);

lib/N64MusyXCodec.c

@@ -0,0 +1,224 @@
+#include "amuse/N64MusyXCodec.h"
+#include <stdint.h>
+#include <string.h>
+
+/* Acknowledgements:
+ * SubDrag for N64 Sound Tool (http://www.goldeneyevault.com/viewfile.php?id=212)
+ * Bobby Smiles for MusyX codec research
+ */
+
+static int rdot(unsigned n, const int16_t* x, const int16_t* y)
+{
+    int accu = 0;
+
+    y += n;
+
+    while (n != 0)
+    {
+        accu += ((int)*(x++) * (int)*(--y));
+        --n;
+    }
+
+    return accu;
+}
+
+static int16_t adpcm_get_predicted_sample(unsigned char byte, unsigned char mask,
+                                          unsigned lshift, unsigned rshift)
+{
+    int16_t sample = ((int16_t)byte & (int16_t)mask) << lshift;
+    sample >>= rshift; /* signed */
+    return sample;
+}
+
+static void adpcm_get_predicted_frame(int16_t* dst, const unsigned char* src,
+                                      const unsigned char* nibbles,
+                                      unsigned rshift)
+{
+    *(dst++) = (src[0] << 8) | src[1];
+    *(dst++) = (src[2] << 8) | src[3];
+
+    for (unsigned i=1 ; i<16 ; ++i)
+    {
+        unsigned char byteData = nibbles[i];
+
+        *(dst++) = adpcm_get_predicted_sample(byteData, 0xf0,  8, rshift);
+        *(dst++) = adpcm_get_predicted_sample(byteData, 0x0f, 12, rshift);
+    }
+}
+
+static unsigned adpcm_decode_upto_8_samples(int16_t* dst, const int16_t* src,
+                                            const int16_t* cb_entry,
+                                            const int16_t* last_samples,
+                                            unsigned size)
+{
+    if (size == 0)
+        return 0;
+
+    const int16_t* book1 = cb_entry;
+    const int16_t* book2 = cb_entry + 8;
+
+    int16_t l1 = last_samples[0];
+    int16_t l2 = last_samples[1];
+
+    int accu;
+
+    for (unsigned i=0 ; i<size ; ++i)
+    {
+        accu = (int)src[i] << 11;
+        accu += book1[i] * l1 + book2[i] * l2 + rdot(i, book2, src);
+        dst[i] = N64MusyXSampClamp(accu >> 11);
+    }
+
+    return size;
+}
+
+static unsigned adpcm_decode_upto_8_samples_ranged(int16_t* dst, const int16_t* src,
+                                                   const int16_t* cb_entry,
+                                                   const int16_t* last_samples,
+                                                   unsigned firstSample,
+                                                   unsigned size)
+{
+    if (firstSample >= size)
+        return 0;
+
+    const int16_t* book1 = cb_entry;
+    const int16_t* book2 = cb_entry + 8;
+
+    int16_t l1 = last_samples[0];
+    int16_t l2 = last_samples[1];
+
+    int accu;
+
+    unsigned ret = 0;
+    for (unsigned i=firstSample ; i<size ; ++i)
+    {
+        accu = (int)src[i] << 11;
+        accu += book1[i] * l1 + book2[i] * l2 + rdot(i, book2, src);
+        *dst++ = N64MusyXSampClamp(accu >> 11);
+        ++ret;
+    }
+
+    return ret;
+}
+
+unsigned N64MusyXDecompressFrame(int16_t* out, const uint8_t* in,
+                                 const int16_t coefs[8][2][8],
+                                 unsigned lastSample)
+{
+    int16_t frame[32];
+
+    unsigned samples = 0;
+    unsigned procSamples;
+
+    unsigned char c2 = in[0x8];
+    c2 = c2 % 0x80;
+
+    const int16_t* bookPredictors = coefs[(c2 & 0xf0) >> 8][0];
+    unsigned int rshift = (c2 & 0x0f);
+
+    adpcm_get_predicted_frame(frame, &in[0x0], &in[0x8], rshift);
+
+    procSamples = (lastSample < 2) ? lastSample : 2;
+    memcpy(out, frame, 2 * procSamples);
+    samples += procSamples;
+    if (samples == lastSample)
+        return samples;
+
+#define adpcm_decode_upto_end_samples(inOffset, bookPredictors, outOffset, size) \
+    procSamples = (lastSample < size) ? lastSample : size; \
+    samples += adpcm_decode_upto_8_samples(out + inOffset, frame + inOffset, bookPredictors, out + outOffset, procSamples); \
+    if (samples == lastSample) \
+        return samples;
+
+    adpcm_decode_upto_end_samples(2, bookPredictors, 0, 6);
+    adpcm_decode_upto_end_samples(8, bookPredictors, 6, 8);
+    adpcm_decode_upto_end_samples(16, bookPredictors, 14, 8);
+    adpcm_decode_upto_end_samples(24, bookPredictors, 22, 8);
+
+    out += 32;
+
+
+    c2 = in[0x18];
+    c2 = c2 % 0x80;
+
+    bookPredictors = coefs[(c2 & 0xf0) >> 8][0];
+    rshift = (c2 & 0x0f);
+
+    adpcm_get_predicted_frame(frame, &in[0x4], &in[0x18], rshift);
+
+    procSamples = (lastSample < 2) ? lastSample : 2;
+    memcpy(out, frame, 2 * procSamples);
+    samples += procSamples;
+    if (samples == lastSample)
+        return samples;
+
+    adpcm_decode_upto_end_samples(2, bookPredictors, 0, 6);
+    adpcm_decode_upto_end_samples(8, bookPredictors, 6, 8);
+    adpcm_decode_upto_end_samples(16, bookPredictors, 14, 8);
+    adpcm_decode_upto_end_samples(24, bookPredictors, 22, 8);
+
+    return samples;
+}
+
+unsigned N64MusyXDecompressFrameRanged(int16_t* out, const uint8_t* in,
+                                       const int16_t coefs[8][2][8],
+                                       unsigned firstSample, unsigned lastSample)
+{
+    int16_t frame[32];
+
+    unsigned samples = 0;
+    unsigned procSamples;
+
+    unsigned char c2 = in[0x8];
+    c2 = c2 % 0x80;
+
+    const int16_t* bookPredictors = coefs[(c2 & 0xf0) >> 8][0];
+    unsigned int rshift = (c2 & 0x0f);
+
+    adpcm_get_predicted_frame(frame, &in[0x0], &in[0x8], rshift);
+
+    procSamples = (lastSample < 2) ? lastSample : 2;
+    memcpy(out, frame, 2 * procSamples);
+    samples += procSamples;
+    firstSample = (2 > firstSample) ? 0 : (firstSample - 2);
+    if (samples == lastSample)
+        return samples;
+
+#define adpcm_decode_upto_end_samples_ranged(inOffset, bookPredictors, outOffset, size) \
+    procSamples = (lastSample < size) ? lastSample : size; \
+    samples += adpcm_decode_upto_8_samples_ranged(out + inOffset, frame + inOffset, bookPredictors, out + outOffset, firstSample, procSamples); \
+    firstSample = (size > firstSample) ? 0 : (firstSample - size); \
+    if (samples == lastSample) \
+        return samples;\
+
+    adpcm_decode_upto_end_samples_ranged(2, bookPredictors, 0, 6);
+    adpcm_decode_upto_end_samples_ranged(8, bookPredictors, 6, 8);
+    adpcm_decode_upto_end_samples_ranged(16, bookPredictors, 14, 8);
+    adpcm_decode_upto_end_samples_ranged(24, bookPredictors, 22, 8);
+
+    out += 32;
+
+
+    c2 = in[0x18];
+    c2 = c2 % 0x80;
+
+    bookPredictors = coefs[(c2 & 0xf0) >> 8][0];
+    rshift = (c2 & 0x0f);
+
+    adpcm_get_predicted_frame(frame, &in[0x4], &in[0x18], rshift);
+
+    procSamples = (lastSample < 2) ? lastSample : 2;
+    memcpy(out, frame, 2 * procSamples);
+    samples += procSamples;
+    firstSample = (2 > firstSample) ? 0 : (firstSample - 2);
+    if (samples == lastSample)
+        return samples;
+
+    adpcm_decode_upto_end_samples_ranged(2, bookPredictors, 0, 6);
+    adpcm_decode_upto_end_samples_ranged(8, bookPredictors, 6, 8);
+    adpcm_decode_upto_end_samples_ranged(16, bookPredictors, 14, 8);
+    adpcm_decode_upto_end_samples_ranged(24, bookPredictors, 22, 8);
+
+    return samples;
+}
+

lib/Sequencer.cpp

@@ -160,7 +160,9 @@ std::shared_ptr<Voice> Sequencer::ChannelState::keyOn(uint8_t note, uint8_t velo
     {
         m_chanVoxs[note] = ret;
         ret->installCtrlValues(m_ctrlVals);
-        if (!ret->loadSoundObject(SBig(m_page->objId), 0, 1000.f, note, velocity, m_ctrlVals[1]))
+
+        ObjectId oid = (m_parent.m_audioGroup.getDataFormat() == DataFormat::PC) ? m_page->objId : SBig(m_page->objId);
+        if (!ret->loadSoundObject(oid, 0, 1000.f, note, velocity, m_ctrlVals[1]))
         {
             m_parent.m_engine._destroyVoice(ret.get());
             return {};

lib/SoundMacroState.cpp

@@ -111,13 +111,13 @@ float SoundMacroState::Evaluator::evaluate(const Voice& vox, const SoundMacroSta
     return value;
 }
 
-void SoundMacroState::initialize(const unsigned char* ptr, int step)
+void SoundMacroState::initialize(const unsigned char* ptr, int step, bool swapData)
 {
-    initialize(ptr, step, 1000.f, 0, 0, 0);
+    initialize(ptr, step, 1000.f, 0, 0, 0, swapData);
 }
 
 void SoundMacroState::initialize(const unsigned char* ptr, int step, double ticksPerSec,
-                                 uint8_t midiKey, uint8_t midiVel, uint8_t midiMod)
+                                 uint8_t midiKey, uint8_t midiVel, uint8_t midiMod, bool swapData)
 {
     m_ticksPerSec = ticksPerSec;
     m_initKey = midiKey;
@@ -137,6 +137,7 @@ void SoundMacroState::initialize(const unsigned char* ptr, int step, double tick
     m_useAdsrControllers = false;
     m_portamentoMode = 0;
     m_header = *reinterpret_cast<const Header*>(ptr);
+    if (swapData)
         m_header.swapBig();
 }
 
@@ -173,6 +174,7 @@ bool SoundMacroState::advance(Voice& vox, double dt)
         /* Load next command based on counter */
         const Command* commands = reinterpret_cast<const Command*>(m_pc.back().first + sizeof(Header));
         Command cmd = commands[m_pc.back().second++];
+        if (vox.getAudioGroup().getDataFormat() != DataFormat::PC)
             cmd.swapBig();
 
         /* Perform function of command */
@@ -751,6 +753,7 @@ bool SoundMacroState::advance(Voice& vox, double dt)
             {
                 m_pc.pop_back();
                 m_header = *reinterpret_cast<const Header*>(m_pc.back().first);
+                if (vox.getAudioGroup().getDataFormat() != DataFormat::PC)
                     m_header.swapBig();
                 vox.m_objectId = m_header.m_macroId;
             }
@@ -768,6 +771,7 @@ bool SoundMacroState::advance(Voice& vox, double dt)
                                    m_initKey, m_initVel, m_initMod, true);
 
             m_header = *reinterpret_cast<const Header*>(m_pc.back().first);
+            if (vox.getAudioGroup().getDataFormat() != DataFormat::PC)
                 m_header.swapBig();
             vox.m_objectId = m_header.m_macroId;
 

lib/Voice.cpp

@@ -5,7 +5,8 @@
 #include "amuse/AudioGroup.hpp"
 #include "amuse/Common.hpp"
 #include "amuse/Engine.hpp"
-#include "amuse/dsp.h"
+#include "amuse/DSPCodec.h"
+#include "amuse/N64MusyXCodec.h"
 #include <cmath>
 #include <string.h>
 
@@ -81,8 +82,9 @@ void Voice::_macroSampleEnd()
         m_state.sampleEndNotify(*this);
 }
 
-bool Voice::_checkSamplePos()
+bool Voice::_checkSamplePos(bool& looped)
 {
+    looped = false;
     if (!m_curSample)
         return true;
 
@@ -92,8 +94,9 @@ bool Voice::_checkSamplePos()
         {
             /* Turn over looped sample */
             m_curSamplePos = m_curSample->first.m_loopStartSample;
-            m_prev1 = m_curSample->second.m_hist2;
+            m_prev1 = m_curSample->second.m_hist1;
-            m_prev2 = m_curSample->second.m_hist1;
+            m_prev2 = m_curSample->second.m_hist2;
+            looped = true;
         }
         else
         {
@@ -350,6 +353,19 @@ bool Voice::_advanceSample(int16_t& samp, int32_t& newPitch)
     return refresh;
 }
 
+uint32_t Voice::_GetBlockSampleCount(SampleFormat fmt)
+{
+    switch (fmt)
+    {
+    default:
+        return 1;
+    case Voice::SampleFormat::DSP:
+        return 14;
+    case Voice::SampleFormat::N64:
+        return 64;
+    }
+}
+
 size_t Voice::supplyAudio(size_t samples, int16_t* data)
 {
     uint32_t samplesRem = samples;
@@ -371,15 +387,20 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
 
     if (m_curSample)
     {
-        uint32_t block = m_curSamplePos / 14;
+        uint32_t blockSampleCount = _GetBlockSampleCount(m_curFormat);
-        uint32_t rem = m_curSamplePos % 14;
+        uint32_t block;
-
-        bool refresh = false;
         int32_t curPitch = m_curPitch;
+        bool refresh = false;
+
+        bool looped = true;
+        while (looped && samplesRem)
+        {
+            block = m_curSamplePos / blockSampleCount;
+            uint32_t rem = m_curSamplePos % blockSampleCount;
 
             if (rem)
             {
-            uint32_t remCount = std::min(samplesRem, m_lastSamplePos - block * 14);
+                uint32_t remCount = std::min(samplesRem, m_lastSamplePos - block * blockSampleCount);
                 uint32_t decSamples;
 
                 switch (m_curFormat)
@@ -400,6 +421,13 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
                     decSamples = remCount;
                     break;
                 }
+                case SampleFormat::N64:
+                {
+                    decSamples = N64MusyXDecompressFrameRanged(data, m_curSampleData + 256 + 40 * block,
+                                                               reinterpret_cast<const int16_t(*)[2][8]>(m_curSampleData),
+                                                               rem, remCount);
+                    break;
+                }
                 default:
                     memset(data, 0, sizeof(int16_t) * samples);
                     return samples;
@@ -417,17 +445,19 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
                 data += decSamples;
             }
 
-        if (_checkSamplePos())
+            if (_checkSamplePos(looped))
             {
                 if (samplesRem)
                     memset(data, 0, sizeof(int16_t) * samplesRem);
                 return samples;
             }
+            if (looped)
+                continue;
 
             while (samplesRem)
             {
-            block = m_curSamplePos / 14;
+                block = m_curSamplePos / blockSampleCount;
-            uint32_t remCount = std::min(samplesRem, m_lastSamplePos - block * 14);
+                uint32_t remCount = std::min(samplesRem, m_lastSamplePos - block * blockSampleCount);
                 uint32_t decSamples;
 
                 switch (m_curFormat)
@@ -448,6 +478,13 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
                         decSamples = remCount;
                         break;
                     }
+                    case SampleFormat::N64:
+                    {
+                        decSamples = N64MusyXDecompressFrame(data, m_curSampleData + 256 + 40 * block,
+                                                             reinterpret_cast<const int16_t(*)[2][8]>(m_curSampleData),
+                                                             remCount);
+                        break;
+                    }
                     default:
                         memset(data, 0, sizeof(int16_t) * samples);
                         return samples;
@@ -464,12 +501,15 @@ size_t Voice::supplyAudio(size_t samples, int16_t* data)
                 samplesRem -= decSamples;
                 data += decSamples;
 
-            if (_checkSamplePos())
+                if (_checkSamplePos(looped))
                 {
                     if (samplesRem)
                         memset(data, 0, sizeof(int16_t) * samplesRem);
                     return samples;
                 }
+                if (looped)
+                    break;
+            }
         }
 
         if (refresh)
@@ -524,13 +564,15 @@ bool Voice::_loadSoundMacro(const unsigned char* macroData, int macroStep, doubl
                             uint8_t midiKey, uint8_t midiVel, uint8_t midiMod, bool pushPc)
 {
     if (m_state.m_pc.empty())
-        m_state.initialize(macroData, macroStep, ticksPerSec, midiKey, midiVel, midiMod);
+        m_state.initialize(macroData, macroStep, ticksPerSec, midiKey, midiVel, midiMod,
+                           m_audioGroup.getDataFormat() != DataFormat::PC);
     else
     {
         if (!pushPc)
             m_state.m_pc.clear();
         m_state.m_pc.push_back({macroData, macroStep});
         m_state.m_header = *reinterpret_cast<const SoundMacroState::Header*>(macroData);
+        if (m_audioGroup.getDataFormat() != DataFormat::PC)
             m_state.m_header.swapBig();
     }
 
@@ -543,8 +585,9 @@ bool Voice::_loadKeymap(const Keymap* keymap, int macroStep, double ticksPerSec,
                         uint8_t midiKey, uint8_t midiVel, uint8_t midiMod, bool pushPc)
 {
     const Keymap& km = keymap[midiKey];
+    ObjectId oid = (m_audioGroup.getDataFormat() == DataFormat::PC) ? km.objectId : SBig(km.objectId);
     midiKey += km.transpose;
-    bool ret = loadSoundObject(SBig(km.objectId), macroStep, ticksPerSec, midiKey, midiVel, midiMod, pushPc);
+    bool ret = loadSoundObject(oid, macroStep, ticksPerSec, midiKey, midiVel, midiMod, pushPc);
     m_curVol = 1.f;
     _setPan((km.pan - 64) / 64.f);
     _setSurroundPan(-1.f);
@@ -559,10 +602,11 @@ bool Voice::_loadLayer(const std::vector<const LayerMapping*>& layer, int macroS
     {
         if (midiKey >= mapping->keyLo && midiKey <= mapping->keyHi)
         {
+            ObjectId oid = (m_audioGroup.getDataFormat() == DataFormat::PC) ? mapping->objectId : SBig(mapping->objectId);
             uint8_t mappingKey = midiKey + mapping->transpose;
             if (m_voxState != VoiceState::Playing)
             {
-                ret |= loadSoundObject(SBig(mapping->objectId), macroStep, ticksPerSec,
+                ret |= loadSoundObject(oid, macroStep, ticksPerSec,
                                        mappingKey, midiVel, midiMod, pushPc);
                 m_curVol = mapping->volume / 127.f;
                 _setPan((mapping->pan - 64) / 64.f);
@@ -571,7 +615,7 @@ bool Voice::_loadLayer(const std::vector<const LayerMapping*>& layer, int macroS
             else
             {
                 std::shared_ptr<Voice> vox =
-                    _startChildMacro(SBig(mapping->objectId), macroStep, ticksPerSec,
+                    _startChildMacro(oid, macroStep, ticksPerSec,
                                      mappingKey, midiVel, midiMod, pushPc);
                 if (vox)
                 {
@@ -685,13 +729,16 @@ void Voice::startSample(int16_t sampId, int32_t offset)
         m_lastSamplePos = m_curSample->first.m_loopLengthSamples ?
             (m_curSample->first.m_loopStartSample + m_curSample->first.m_loopLengthSamples) : numSamples;
 
-        if (m_curFormat != SampleFormat::DSP && m_curFormat != SampleFormat::PCM)
+        if (m_curFormat != SampleFormat::DSP &&
+            m_curFormat != SampleFormat::PCM &&
+            m_curFormat != SampleFormat::N64)
         {
             m_curSample = nullptr;
             return;
         }
 
-        _checkSamplePos();
+        bool looped;
+        _checkSamplePos(looped);
 
         /* Seek DSPADPCM state if needed */
         if (m_curSample && m_curSamplePos && m_curFormat == SampleFormat::DSP)