Merge pull request #935 from paulfd/pianobook

Store files to load and their offset and defer loading

src/sfizz/Layer.cpp

@@ -129,7 +129,7 @@ bool Layer::registerNoteOff(int noteNumber, float velocity, float randValue) noe
     return false;
 }
 
-bool Layer::registerCC(int ccNumber, float ccValue) noexcept
+bool Layer::registerCC(int ccNumber, float ccValue, bool dontTrigger) noexcept
 {
     const Region& region = region_;
 
@@ -152,14 +152,16 @@ bool Layer::registerCC(int ccNumber, float ccValue) noexcept
     else
         ccSwitched_.set(ccNumber, false);
 
-    if (!isSwitchedOn())
+    if (dontTrigger || !region.triggerOnCC)
-        return false;
-
-    if (!region.triggerOnCC)
         return false;
 
     if (auto triggerRange = region.ccTriggers.get(ccNumber)) {
-        if (triggerRange->containsWithEnd(ccValue))
+        if (!triggerRange->containsWithEnd(ccValue))
+            return false;
+
+        sequenceSwitched_ =
+            ((sequenceCounter_++ % region.sequenceLength) == region.sequencePosition - 1);
+        if (isSwitchedOn())
             return true;
     }
 

src/sfizz/Layer.h

@@ -88,7 +88,7 @@ public:
      * @return true if the region should trigger on this event
      * @return false
      */
-    bool registerCC(int ccNumber, float ccValue) noexcept;
+    bool registerCC(int ccNumber, float ccValue, bool dontTrigger = false) noexcept;
     /**
      * @brief Register a new pitch wheel event.
      *

src/sfizz/Synth.cpp

@@ -581,6 +581,8 @@ void Synth::Impl::finalizeSfzLoad()
     size_t currentRegionIndex = 0;
     size_t currentRegionCount = layers_.size();
 
+    absl::flat_hash_map<sfz::FileId, int64_t> filesToLoad;
+
     auto removeCurrentRegion = [this, &currentRegionIndex, &currentRegionCount]() {
         const Region& region = layers_[currentRegionIndex]->getRegion();
         DBG("Removing the region with sample " << *region.sampleId);
@@ -679,10 +681,8 @@ void Synth::Impl::finalizeSfzLoad()
                 return Default::offsetMod.bounds.clamp(sumOffsetCC);
             }();
 
-            if (!filePool.preloadFile(*region.sampleId, maxOffset)) {
+            auto& toLoad = filesToLoad[*region.sampleId];
-                removeCurrentRegion();
+            toLoad = max(toLoad, maxOffset);
-                continue;
-            }
         }
         else if (!region.isGenerator()) {
             if (!wavePool.createFileWave(filePool, std::string(region.sampleId->filename()))) {
@@ -726,7 +726,7 @@ void Synth::Impl::finalizeSfzLoad()
         // Defaults
         MidiState& midiState = resources_.getMidiState();
         for (int cc = 0; cc < config::numCCs; cc++) {
-            layer.registerCC(cc, midiState.getCCValue(cc));
+            layer.registerCC(cc, midiState.getCCValue(cc), true);
         }
 
 
@@ -763,6 +763,11 @@ void Synth::Impl::finalizeSfzLoad()
 
         ++currentRegionIndex;
     }
+
+    for (const auto& toLoad: filesToLoad) {
+        filePool.preloadFile(toLoad.first, toLoad.second);
+    }
+
     if (currentRegionCount < layers_.size()) {
         DBG("Removing " << (layers_.size() - currentRegionCount)
             << " out of " << layers_.size() << " regions");
@@ -1946,7 +1951,7 @@ void Synth::Impl::resetAllControllers(int delay) noexcept
     for (const LayerPtr& layerPtr : layers_) {
         Layer& layer = *layerPtr;
         for (int cc = 0; cc < config::numCCs; ++cc)
-            layer.registerCC(cc, defaultCCValues_[cc]);
+            layer.registerCC(cc, defaultCCValues_[cc], true);
     }
 }
 

tests/SynthT.cpp

@@ -1983,3 +1983,29 @@ TEST_CASE("[Synth] Resets all controllers to default values")
     REQUIRE( synth.getHdcc(56) == 64_norm );
     REQUIRE( synth.getHdcc(78) == 0.0f );
 }
+
+TEST_CASE("[Synth] Sequences also work on cc triggers")
+{
+    sfz::Synth synth;
+    std::vector<std::string> messageList;
+    sfz::Client client(&messageList);
+    client.setReceiveCallback(&simpleMessageReceiver);
+    sfz::AudioBuffer<float> buffer { 2, static_cast<unsigned>(synth.getSamplesPerBlock()) };
+    synth.loadSfzString(fs::current_path() / "tests/TestFiles/sequence_cc_triggers.sfz", R"(
+        <global> seq_length=3
+        <region> sample=*sine hikey=-1 start_locc61=0 start_hicc61=64 seq_position=1
+        <region> sample=*saw hikey=-1 start_locc61=0 start_hicc61=64 seq_position=2
+    )");
+    synth.cc(0, 61, 10);
+    synth.renderBlock(buffer);
+    REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine" } );
+    synth.cc(0, 61, 20);
+    synth.renderBlock(buffer);
+    REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw" } );
+    synth.cc(0, 61, 20);
+    synth.renderBlock(buffer);
+    REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw" } );
+    synth.cc(0, 61, 20);
+    synth.renderBlock(buffer);
+    REQUIRE( playingSamples(synth) == std::vector<std::string> { "*sine", "*saw", "*sine" } );
+}