Move some ContextBase function definitions to the right place

1 files changed, 70 insertions, 0 deletions

diff --git a/core/context.cpp b/core/context.cpp
index f1c310aa..c8d9ea93 100644
--- a/core/context.cpp
+++ b/core/context.cpp
@@ -1,5 +1,75 @@
 
 #include "config.h"
 
+#include <memory>
+
 #include "context.h"
+#include "device.h"
+#include "logging.h"
+#include "voice.h"
+#include "voice_change.h"
+
+
+void ContextBase::allocVoiceChanges()
+{
+    constexpr size_t clustersize{128};
+
+    VoiceChangeCluster cluster{std::make_unique<VoiceChange[]>(clustersize)};
+    for(size_t i{1};i < clustersize;++i)
+        cluster[i-1].mNext.store(std::addressof(cluster[i]), std::memory_order_relaxed);
+    cluster[clustersize-1].mNext.store(mVoiceChangeTail, std::memory_order_relaxed);
+
+    mVoiceChangeClusters.emplace_back(std::move(cluster));
+    mVoiceChangeTail = mVoiceChangeClusters.back().get();
+}
+
+void ContextBase::allocVoiceProps()
+{
+    constexpr size_t clustersize{32};
+
+    TRACE("Increasing allocated voice properties to %zu\n",
+        (mVoicePropClusters.size()+1) * clustersize);
+
+    VoicePropsCluster cluster{std::make_unique<VoicePropsItem[]>(clustersize)};
+    for(size_t i{1};i < clustersize;++i)
+        cluster[i-1].next.store(std::addressof(cluster[i]), std::memory_order_relaxed);
+    mVoicePropClusters.emplace_back(std::move(cluster));
+
+    VoicePropsItem *oldhead{mFreeVoiceProps.load(std::memory_order_acquire)};
+    do {
+        mVoicePropClusters.back()[clustersize-1].next.store(oldhead, std::memory_order_relaxed);
+    } while(mFreeVoiceProps.compare_exchange_weak(oldhead, mVoicePropClusters.back().get(),
+        std::memory_order_acq_rel, std::memory_order_acquire) == false);
+}
+
+void ContextBase::allocVoices(size_t addcount)
+{
+    constexpr size_t clustersize{32};
+    /* Convert element count to cluster count. */
+    addcount = (addcount+(clustersize-1)) / clustersize;
+
+    if(addcount >= std::numeric_limits<int>::max()/clustersize - mVoiceClusters.size())
+        throw std::runtime_error{"Allocating too many voices"};
+    const size_t totalcount{(mVoiceClusters.size()+addcount) * clustersize};
+    TRACE("Increasing allocated voices to %zu\n", totalcount);
+
+    auto newarray = VoiceArray::Create(totalcount);
+    while(addcount)
+    {
+        mVoiceClusters.emplace_back(std::make_unique<Voice[]>(clustersize));
+        --addcount;
+    }
+
+    auto voice_iter = newarray->begin();
+    for(VoiceCluster &cluster : mVoiceClusters)
+    {
+        for(size_t i{0};i < clustersize;++i)
+            *(voice_iter++) = &cluster[i];
+    }
 
+    if(auto *oldvoices = mVoices.exchange(newarray.release(), std::memory_order_acq_rel))
+    {
+        mDevice->waitForMix();
+        delete oldvoices;
+    }
+}