Automatically clean up buffers with ther sublist

Alc/alc.cpp

@@ -2396,11 +2396,11 @@ ALCdevice_struct::~ALCdevice_struct()
 
     almtx_destroy(&BackendLock);
 
-    ReleaseALBuffers(this);
-    std::for_each(BufferList.begin(), BufferList.end(),
-        [](BufferSubList &entry) noexcept -> void
-        { al_free(entry.Buffers); }
-    );
+    size_t count{0u};
+    for(auto &sublist : BufferList)
+        count += POPCNT64(~sublist.FreeMask);
+    if(count > 0)
+        WARN(SZFMT " Buffer%s not deleted\n", count, (count==1)?"":"s");
     BufferList.clear();
     almtx_destroy(&BufferLock);
 

OpenAL32/Include/alBuffer.h

@@ -121,6 +121,4 @@ struct ALbuffer {
     ALuint id{0};
 };
 
-ALvoid ReleaseALBuffers(ALCdevice *device);
-
 #endif

OpenAL32/Include/alMain.h

@@ -551,10 +551,20 @@ typedef union AmbiConfig {
 } AmbiConfig;
 
 
-typedef struct BufferSubList {
-    ALuint64 FreeMask{~ALuint64{}};
+struct BufferSubList {
+    uint64_t FreeMask{~uint64_t{}};
     struct ALbuffer *Buffers{nullptr}; /* 64 */
-} BufferSubList;
+
+    BufferSubList() noexcept = default;
+    BufferSubList(const BufferSubList&) = delete;
+    BufferSubList(BufferSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Buffers{rhs.Buffers}
+    { rhs.FreeMask = ~uint64_t{}; rhs.Buffers = nullptr; }
+    ~BufferSubList();
+
+    BufferSubList& operator=(const BufferSubList&) = delete;
+    BufferSubList& operator=(BufferSubList&& rhs) noexcept
+    { std::swap(FreeMask, rhs.FreeMask); std::swap(Buffers, rhs.Buffers); return *this; }
+};
 
 typedef struct EffectSubList {
     ALuint64 FreeMask{~ALuint64{}};

OpenAL32/alBuffer.cpp

@@ -1174,30 +1174,16 @@ ALsizei ChannelsFromFmt(FmtChannels chans)
 }
 
 
-/*
- *    ReleaseALBuffers()
- *
- *    INTERNAL: Called to destroy any buffers that still exist on the device
- */
-ALvoid ReleaseALBuffers(ALCdevice *device)
+BufferSubList::~BufferSubList()
 {
-    size_t leftover = 0;
-    for(auto &sublist : device->BufferList)
+    ALuint64 usemask = ~FreeMask;
+    while(usemask)
     {
-        ALuint64 usemask = ~sublist.FreeMask;
-        while(usemask)
-        {
-            ALsizei idx = CTZ64(usemask);
-            ALbuffer *buffer = sublist.Buffers + idx;
-
-            buffer->~ALbuffer();
-
-            ++leftover;
-
-            usemask &= ~(U64(1) << idx);
-        }
-        sublist.FreeMask = ~usemask;
+        ALsizei idx{CTZ64(usemask)};
+        Buffers[idx].~ALbuffer();
+        usemask &= ~(U64(1) << idx);
     }
-    if(leftover > 0)
-        WARN("(%p) Deleted " SZFMT " Buffer%s\n", device, leftover, (leftover==1)?"":"s");
+    FreeMask = ~usemask;
+    al_free(Buffers);
+    Buffers = nullptr;
 }

OpenAL32/alSource.cpp

@@ -3405,10 +3405,7 @@ SourceSubList::~SourceSubList()
     while(usemask)
     {
         ALsizei idx{CTZ64(usemask)};
-        ALsource *source{Sources + idx};
-
-        source->~ALsource();
-
+        Sources[idx].~ALsource();
         usemask &= ~(U64(1) << idx);
     }
     FreeMask = ~usemask;