Fix/arp clock sync

.gitmodules

@@ -19,3 +19,6 @@
 [submodule "source/3rdparty/freetype"]
 	path = source/3rdparty/freetype
 	url = https://github.com/freetype/freetype.git
+[submodule "source/3rdparty/lunasvg"]
+	path = source/3rdparty/lunasvg
+	url = https://github.com/sammycage/lunasvg.git

build_mac.sh

@@ -1,4 +1,5 @@
-cmake -G Xcode -S . -B ./temp/cmake
-cd ./temp/cmake
-cmake --build . --config Release
-cpack -G ZIP
+cmake -G Xcode -S . -B ./temp/cmake_macos
+cmake --build ./temp/cmake_macos --config Release
+cd ./temp/cmake_macos
+CMAKE_BIN="$(dirname "$(command -v cmake)")"
+"${CMAKE_BIN}/cpack" -G ZIP

source/3rdparty/CMakeLists.txt

@@ -18,9 +18,14 @@ add_library(Freetype::Freetype ALIAS freetype)
 # Lua 5.4 for RmlUi scripting
 add_subdirectory(lua)
 
+# lunasvg for RmlUi SVG plugin
+set(LUNASVG_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+add_subdirectory(lunasvg)
+
 # Enable RmlUi Lua bindings and point to our bundled Lua
 set(RMLUI_LUA_BINDINGS ON CACHE BOOL "" FORCE)
 set(RMLUI_LUA_BINDINGS_LIBRARY "lua_as_cxx" CACHE STRING "" FORCE)
+set(RMLUI_SVG_PLUGIN ON CACHE BOOL "" FORCE)
 
 # Create the Lua::Lua target so RmlUi's Dependencies.cmake finds it and skips find_package(Lua)
 add_library(Lua::Lua INTERFACE IMPORTED)

source/juceRmlUi/CMakeLists.txt

@@ -78,7 +78,7 @@ endif()
 if(APPLE)
     # Universal or x86_64-only: scope flags to the x86_64 slice
     if(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" OR CMAKE_SYSTEM_PROCESSOR MATCHES "x86|X86|amd64|AMD64")
-        target_compile_options(juceRmlUi PRIVATE -Xarch_x86_64 -mssse3 -Xarch_x86_64 -msse4.1)
+        target_compile_options(juceRmlUi PRIVATE "SHELL:-Xarch_x86_64 -mssse3" "SHELL:-Xarch_x86_64 -msse4.1")
     endif()
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "x86|X86|amd64|AMD64|i[3-6]86")
     include(CheckCXXCompilerFlag)

source/synthLib/midiClock.cpp

@@ -39,6 +39,15 @@ namespace synthLib
 			LOGMC("Stop at ppqPos=" << _ppqPos);
 			stop();
 		}
+		else if(m_isPlaying && _isPlaying && _ppqPos < m_lastPpqPos - 0.5)
+		{
+			// Host looped back or seeked backward — re-sync the clock
+			LOGMC("Loop/seek detected: ppqPos " << m_lastPpqPos << " -> " << _ppqPos);
+			stop();
+			start(_ppqPos);
+		}
+
+		m_lastPpqPos = _ppqPos;
 
 		for(uint32_t i=0; i<static_cast<uint32_t>(_sampleCount); ++i)
 		{
@@ -66,10 +75,18 @@ namespace synthLib
 	void MidiClock::start(const float _ppqPos)
 	{
 		const double ppqPos = _ppqPos;
-		const auto quarterPos = (ppqPos - std::floor(ppqPos + 1.0));
-
-		m_clockTickPos = quarterPos * (ClockTicksPerQuarter);
 
+		// Compute how far through the current clock tick period we already are,
+		// so the first tick fires at the correct phase rather than always at the
+		// start of the next full tick period.
+		// m_clockTickPos must be in [-1, 0): the loop fires a tick each time it
+		// crosses 0, so starting at (fracTick - 1.0) fires the first tick after
+		// exactly (1 - fracTick) of a tick period.
+		const double absoluteTicks = ppqPos * ClockTicksPerQuarter;
+		const double fracTick = absoluteTicks - std::floor(absoluteTicks);
+		m_clockTickPos = fracTick - 1.0;
+
+		m_lastPpqPos = ppqPos;
 		m_isPlaying = true;
 
 		LOGMC("Start at ppqPos=" << ppqPos << ", clock tick offset " << m_clockTickPos);

source/synthLib/midiClock.h

@@ -24,5 +24,6 @@ namespace synthLib
 
 		bool m_isPlaying = false;
 		double m_clockTickPos = 0.0;
+		double m_lastPpqPos = 0.0;
 	};
 }