Add the boilerplate for the Agat encoder.

arch/agat/agat.h

@@ -3,7 +3,13 @@
 
 #define AGAT_SECTOR_SIZE 256
 
+class Encoder;
+class EncoderProto;
+class Decoder;
+class DecoderProto;
+
 extern std::unique_ptr<Decoder> createAgatDecoder(const DecoderProto& config);
+extern std::unique_ptr<Encoder> createAgatEncoder(const EncoderProto& config);
 
 extern uint8_t agatChecksum(const Bytes& bytes);
 

arch/agat/agat.proto

@@ -2,4 +2,5 @@ syntax = "proto2";
 
 message AgatDecoderProto {}
 
+message AgatEncoderProto {}
 

arch/agat/encoder.cc

@@ -0,0 +1,37 @@
+#include "globals.h"
+#include "decoders/decoders.h"
+#include "encoders/encoders.h"
+#include "agat.h"
+#include "crc.h"
+#include "readerwriter.h"
+#include "image.h"
+#include "arch/agat/agat.pb.h"
+#include "lib/encoders/encoders.pb.h"
+
+class AgatEncoder : public Encoder
+{
+public:
+    AgatEncoder(const EncoderProto& config):
+        Encoder(config),
+        _config(config.agat())
+    {
+    }
+
+public:
+    std::unique_ptr<Fluxmap> encode(std::shared_ptr<const TrackInfo>& trackInfo,
+        const std::vector<std::shared_ptr<const Sector>>& sectors,
+        const Image& image) override
+    {
+        Error() << "unimplemented";
+    }
+
+private:
+    const AgatEncoderProto& _config;
+};
+
+
+std::unique_ptr<Encoder> createAgatEncoder(const EncoderProto& config)
+{
+    return std::unique_ptr<Encoder>(new AgatEncoder(config));
+}
+

arch/build.mk

@@ -2,6 +2,7 @@ LIBARCH_SRCS = \
 	arch/aeslanier/decoder.cc \
 	arch/agat/agat.cc \
 	arch/agat/decoder.cc \
+	arch/agat/encoder.cc \
 	arch/amiga/amiga.cc \
 	arch/amiga/decoder.cc \
 	arch/amiga/encoder.cc \