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-rw-r--r--src/engine/AudioBuffer.hpp32
1 files changed, 31 insertions, 1 deletions
diff --git a/src/engine/AudioBuffer.hpp b/src/engine/AudioBuffer.hpp
index cfac3d59..7edfdef3 100644
--- a/src/engine/AudioBuffer.hpp
+++ b/src/engine/AudioBuffer.hpp
@@ -23,6 +23,7 @@
#include <boost/utility.hpp>
#include "types.hpp"
#include "ObjectBuffer.hpp"
+#include "Context.hpp"
using namespace std;
@@ -42,7 +43,7 @@ public:
void copy(Context& context, const Buffer* src);
void accumulate(Context& context, const AudioBuffer* src);
- bool is_control() const { return _type.symbol() == Shared::PortType::CONTROL; }
+ inline bool is_control() const { return _type.symbol() == Shared::PortType::CONTROL; }
inline Sample* data() const {
return (is_control())
@@ -75,6 +76,35 @@ private:
};
+/** Accumulate a block of @a src into buffer.
+ */
+inline void
+AudioBuffer::accumulate(Context& context, const AudioBuffer* const src)
+{
+ Sample* const buf = data();
+ const Sample* const src_buf = src->data();
+
+ if (is_control()) {
+ if (src->is_control()) { // control => control
+ buf[0] += src_buf[0];
+ } else { // audio => control
+ buf[0] += src_buf[context.offset()];
+ }
+ } else {
+ const SampleCount end = context.offset() + context.nframes();
+ if (src->is_control()) { // control => audio
+ for (SampleCount i = context.offset(); i < end; ++i) {
+ buf[i] += src_buf[0];
+ }
+ } else { // audio => audio
+ for (SampleCount i = context.offset(); i < end; ++i) {
+ buf[i] += src_buf[i];
+ }
+ }
+ }
+}
+
+
} // namespace Ingen
#endif // INGEN_ENGINE_AUDIOBUFFER_HPP