From bf9ec425bb1b066aa9a2fe14ff88c5608eac25c8 Mon Sep 17 00:00:00 2001
From: Jean Pierre Cimalando <jp-dev@inbox.ru>
Date: Mon, 22 Feb 2021 19:57:50 +0100
Subject: [PATCH] Send key ranges to editor

---
 plugins/editor/src/editor/Editor.cpp | 14 ++++++++++----
 src/sfizz/Synth.cpp                  | 10 ++++++++++
 src/sfizz/SynthMessaging.cpp         |  8 ++++++++
 src/sfizz/SynthPrivate.h             |  1 +
 4 files changed, 29 insertions(+), 4 deletions(-)

diff --git a/plugins/editor/src/editor/Editor.cpp b/plugins/editor/src/editor/Editor.cpp
index f56b7f0a..fa0bb186 100644
--- a/plugins/editor/src/editor/Editor.cpp
+++ b/plugins/editor/src/editor/Editor.cpp
@@ -219,7 +219,8 @@ void Editor::open(CFrame& frame)
     impl.frame_ = &frame;
     frame.addView(impl.mainView_.get());
 
-    // request the whole CC information
+    // request the whole Key and CC information
+    impl.sendQueuedOSC("/key/slots", "", nullptr);
     impl.sendQueuedOSC("/cc/slots", "", nullptr);
 }
 
@@ -244,7 +245,8 @@ void Editor::Impl::uiReceiveValue(EditId id, const EditValue& v)
             currentSfzFile_ = value;
             updateSfzFileLabel(value);
 
-            // request the whole CC information
+            // request the whole Key and CC information
+            sendQueuedOSC("/key/slots", "", nullptr);
             sendQueuedOSC("/cc/slots", "", nullptr);
         }
         break;
@@ -390,7 +392,10 @@ void Editor::Impl::uiReceiveMessage(const char* path, const char* sig, const sfi
 {
     unsigned indices[8];
 
-    if (Messages::matchOSC("/cc/slots", path, indices) && !strcmp(sig, "b")) {
+    if (Messages::matchOSC("/key/slots", path, indices) && !strcmp(sig, "b")) {
+        // TODO(jpc) key ranges
+    }
+    else if (Messages::matchOSC("/cc/slots", path, indices) && !strcmp(sig, "b")) {
         const uint8_t* bitChunks = args[0].b->data;
         uint32_t byteSize = args[0].b->size;
 
@@ -962,7 +967,8 @@ void Editor::Impl::changeSfzFile(const std::string& filePath)
     currentSfzFile_ = filePath;
     updateSfzFileLabel(filePath);
 
-    // request the whole CC information
+    // request the whole Key and CC information
+    sendQueuedOSC("/key/slots", "", nullptr);
     sendQueuedOSC("/cc/slots", "", nullptr);
 }
 
diff --git a/src/sfizz/Synth.cpp b/src/sfizz/Synth.cpp
index c43302b7..c2f73319 100644
--- a/src/sfizz/Synth.cpp
+++ b/src/sfizz/Synth.cpp
@@ -249,6 +249,7 @@ void Synth::Impl::clear()
     currentUsedCCs_.clear();
     changedCCsThisCycle_.clear();
     keyLabels_.clear();
+    keySlots_.clear();
     keyswitchLabels_.clear();
     globalOpcodes_.clear();
     masterOpcodes_.clear();
@@ -735,6 +736,15 @@ void Synth::Impl::finalizeSfzLoad()
 
     // cache the set of used CCs for future access
     currentUsedCCs_ = collectAllUsedCCs();
+
+    // cache the set of keys assigned
+    for (const RegionPtr& regionPtr : regions_) {
+        Range<uint8_t> keyRange = regionPtr->keyRange;
+        unsigned loKey = keyRange.getStart();
+        unsigned hiKey = keyRange.getEnd();
+        for (unsigned key = loKey; key <= hiKey; ++key)
+            keySlots_.set(key);
+    }
 }
 
 bool Synth::loadScalaFile(const fs::path& path)
diff --git a/src/sfizz/SynthMessaging.cpp b/src/sfizz/SynthMessaging.cpp
index 123fac10..f8672cca 100644
--- a/src/sfizz/SynthMessaging.cpp
+++ b/src/sfizz/SynthMessaging.cpp
@@ -38,6 +38,14 @@ void sfz::Synth::dispatchMessage(Client& client, int delay, const char* path, co
 
         //----------------------------------------------------------------------
 
+        MATCH("/key/slots", "") {
+            const BitArray<128>& keys = impl.keySlots_;
+            sfizz_blob_t blob { keys.data(), static_cast<uint32_t>(keys.byte_size()) };
+            client.receive<'b'>(delay, path, &blob);
+        } break;
+
+        //----------------------------------------------------------------------
+
         MATCH("/cc/slots", "") {
             const BitArray<config::numCCs>& ccs = impl.currentUsedCCs_;
             sfizz_blob_t blob { ccs.data(), static_cast<uint32_t>(ccs.byte_size()) };
diff --git a/src/sfizz/SynthPrivate.h b/src/sfizz/SynthPrivate.h
index 08c3fcca..e0d3124a 100644
--- a/src/sfizz/SynthPrivate.h
+++ b/src/sfizz/SynthPrivate.h
@@ -216,6 +216,7 @@ struct Synth::Impl final: public Parser::Listener {
     std::vector<CCNamePair> ccLabels_;
     std::map<int, size_t> ccLabelsMap_;
     std::vector<NoteNamePair> keyLabels_;
+    BitArray<128> keySlots_;
     std::vector<NoteNamePair> keyswitchLabels_;
 
     // Set as sw_default if present in the file