From fc397802d408441ce354c5b0328adc93f617aca5 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 22 Nov 2008 06:54:01 +0000
Subject: Fix event loss for outputs connected directly to several inputs (fix
 ticket #231).

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@1763 a436a847-0d15-0410-975c-d299462d15a1
---
 src/engine/ConnectionImpl.cpp |  4 +++-
 src/engine/EventBuffer.cpp    |  3 ++-
 src/engine/EventBuffer.hpp    |  2 --
 src/engine/InputPort.cpp      | 16 ++++++++++------
 4 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/engine/ConnectionImpl.cpp b/src/engine/ConnectionImpl.cpp
index 79fb59e1..46e7fcc6 100644
--- a/src/engine/ConnectionImpl.cpp
+++ b/src/engine/ConnectionImpl.cpp
@@ -233,8 +233,10 @@ ConnectionImpl::process(ProcessContext& context)
 			if (copy_size < dst_buf->size())
 				dst_buf->set_block(src_buf->value_at(copy_size - 1), copy_size, dst_buf->size() - 1);
 		}
+	} else if (_mode == DIRECT) {
+		for (uint32_t j=0; j < src_port()->poly(); ++j)
+			src_port()->buffer(j)->prepare_read(context.start(), context.nframes());
 	}
-
 }
 
 
diff --git a/src/engine/EventBuffer.cpp b/src/engine/EventBuffer.cpp
index 4d499496..98a98a20 100644
--- a/src/engine/EventBuffer.cpp
+++ b/src/engine/EventBuffer.cpp
@@ -100,6 +100,7 @@ EventBuffer::join(Buffer* buf)
 void
 EventBuffer::unjoin()
 {
+	//cout << this << " unjoin" << endl;
 	_joined_buf = NULL;
 	_buf = _local_buf;
 	reset(_this_nframes);
@@ -109,7 +110,6 @@ EventBuffer::unjoin()
 void
 EventBuffer::prepare_read(FrameTime start, SampleCount nframes)
 {
-	//cerr << "\t" << this << " prepare_read: " << event_count() << endl;
 	rewind();
 	_this_nframes = nframes;
 }
@@ -134,6 +134,7 @@ EventBuffer::copy(const Buffer* src_buf, size_t start_sample, size_t end_sample)
 	src->rewind();
 
 	memcpy(_buf, src->_buf, src->_buf->size);
+	_this_nframes = end_sample - start_sample;
 }
 
 
diff --git a/src/engine/EventBuffer.hpp b/src/engine/EventBuffer.hpp
index 0c80d452..654e229b 100644
--- a/src/engine/EventBuffer.hpp
+++ b/src/engine/EventBuffer.hpp
@@ -18,7 +18,6 @@
 #ifndef EVENTBUFFER_H
 #define EVENTBUFFER_H
 
-#include <iostream>
 #include <lv2ext/lv2_event.h>
 #include <lv2ext/lv2_event_helpers.h>
 #include "Buffer.hpp"
@@ -56,7 +55,6 @@ public:
 	inline void rewind() const { lv2_event_begin(&_iter, _buf); }
 	inline void clear() { reset(_this_nframes); }
 	inline void reset(SampleCount nframes) {
-		//std::cerr << this << " reset" << std::endl;
 		_this_nframes = nframes;
 		_latest_frames = 0;
 		_latest_subframes = 0;
diff --git a/src/engine/InputPort.cpp b/src/engine/InputPort.cpp
index 3257144c..531ca468 100644
--- a/src/engine/InputPort.cpp
+++ b/src/engine/InputPort.cpp
@@ -207,6 +207,8 @@ InputPort::pre_process(ProcessContext& context)
 		if (can_direct()) {
 			for (uint32_t i=0; i < _poly; ++i) {
 				_buffers->at(i)->join(_connections.front()->buffer(i));
+				_connections.front()->buffer(i)->prepare_read(context.start(), context.nframes());
+				_buffers->at(i)->prepare_read(context.start(), context.nframes());
 			}
 			do_mixdown = false;
 		}
@@ -224,9 +226,10 @@ InputPort::pre_process(ProcessContext& context)
 	
 	/*if (type() == DataType::EVENT) 
 		for (uint32_t i=0; i < _poly; ++i)
-			cerr << path() << " (" << buffer(i) << ") # events: "
-				<< ((EventBuffer*)buffer(i))->event_count()
-				<< ", joined: " << _buffers->at(i)->is_joined() << endl;*/
+			if (((EventBuffer*)buffer(i))->event_count() > 0)
+				cerr << path() << " (" << buffer(i) << ") # events: "
+					<< ((EventBuffer*)buffer(i))->event_count()
+					<< ", joined: " << _buffers->at(i)->is_joined() << endl;*/
 
 	if (!do_mixdown) {
 		/*#ifndef NDEBUG
@@ -270,9 +273,10 @@ InputPort::post_process(ProcessContext& context)
 {
 	broadcast(context);
 
-	// Prepare for next cycle
-	for (uint32_t i=0; i < _poly; ++i)
-		buffer(i)->prepare_write(context.start(), context.nframes());
+	// Prepare buffers for next cycle
+	if (!can_direct())
+		for (uint32_t i=0; i < _poly; ++i)
+			buffer(i)->prepare_write(context.start(), context.nframes());
 
 	_set_by_user = false;
 	
-- 
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