gearmulator

commit 18297ead751a1fe1747efa82eec05bbe8abeb83f
parent d27c56cf73ea9cd7dbc2ae9110b748a253ead4b8
Author: dsp56300 <dsp56300@users.noreply.github.com>
Date:   Mon,  5 Aug 2024 15:58:49 +0200

add rom verification to prevent that we accidentially load a rom that is not a NL2x rom

Diffstat:
M
source/nord/n2x/n2xLib/n2xrom.cpp
 | 
10
++++++++++
M
source/nord/n2x/n2xLib/n2xrom.h
 | 
6
+++++-
M
source/nord/n2x/n2xLib/n2xromdata.h
 | 
4
++++

3 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/source/nord/n2x/n2xLib/n2xrom.cpp b/source/nord/n2x/n2xLib/n2xrom.cpp
@@ -1,7 +1,17 @@
 #include "n2xrom.h"
 
+#include <algorithm>
+
 #include "synthLib/os.h"
 
 namespace n2x
 {
+	Rom::Rom() : RomData()
+	{
+		constexpr uint8_t key[] = {'n', 'r', '2', 0, 'n', 'L', '2', 0};
+
+		const auto it = std::search(data().begin(), data().end(), std::begin(key), std::end(key));
+		if(it == data().end())
+			invalidate();
+	}
 }
diff --git a/source/nord/n2x/n2xLib/n2xrom.h b/source/nord/n2x/n2xLib/n2xrom.h
@@ -5,5 +5,9 @@
 
 namespace n2x
 {
-	class Rom : public RomData<g_romSize>	{};
+	class Rom : public RomData<g_romSize>
+	{
+	public:
+		Rom();
+	};
 }
diff --git a/source/nord/n2x/n2xLib/n2xromdata.h b/source/nord/n2x/n2xLib/n2xromdata.h
@@ -20,6 +20,10 @@ namespace n2x
 
 		const auto& getFilename() const { return m_filename; }
 
+		void invalidate()
+		{
+			m_filename.clear();
+		}
 	private:
 		std::array<uint8_t, Size> m_data;
 		std::string m_filename;