Respect region end opcode

src/sfizz/Voice.cpp

@@ -950,9 +950,11 @@ void Voice::Impl::fillWithData(AudioSpan<float> buffer) noexcept
     else {
         // cut short the voice at the instant of reaching end of sample
         const auto sampleEnd = min(
-            static_cast<int>(currentPromise_->information.end),
-            static_cast<int>(source.getNumFrames())
-        ) - 1;
+            int(region_->trueSampleEnd(resources_.filePool.getOversamplingFactor())),
+            int(currentPromise_->information.end),
+            int(source.getNumFrames()))
+            - 1;
+
         for (unsigned i = 0; i < numSamples; ++i) {
             if ((*indices)[i] >= sampleEnd) {
 #ifndef NDEBUG