90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
#pragma once
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#include "inputParser.hpp"
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#include "jaffarCommon/logger.hpp"
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#include "jaffarCommon/serializers/contiguous.hpp"
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#include "jaffarCommon/serializers/differential.hpp"
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#include "jaffarCommon/deserializers/base.hpp"
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// Size of image generated in graphics buffer
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static const uint16_t image_width = 256;
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static const uint16_t image_height = 240;
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class NESInstanceBase
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{
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public:
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NESInstanceBase(const nlohmann::json &config)
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{
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_inputParser = std::make_unique<jaffar::InputParser>(config);
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}
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virtual ~NESInstanceBase() = default;
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virtual void advanceState(const jaffar::input_t &input) = 0;
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inline void enableRendering() { _doRendering = true; };
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inline void disableRendering() { _doRendering = false; };
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inline bool loadROM(const uint8_t *romData, const size_t romSize)
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{
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// Actually loading rom file
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auto status = loadROMImpl(romData, romSize);
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// Detecting full state size
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_stateSize = getFullStateSize();
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// Returning status
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return status;
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}
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void enableStateBlock(const std::string &block)
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{
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// Calling implementation
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enableStateBlockImpl(block);
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// Recalculating State size
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_stateSize = getFullStateSize();
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}
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void disableStateBlock(const std::string &block)
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{
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// Calling implementation
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disableStateBlockImpl(block);
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// Recalculating State Size
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_stateSize = getFullStateSize();
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}
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virtual size_t getFullStateSize() const = 0;
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virtual size_t getDifferentialStateSize() const = 0;
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inline jaffar::InputParser *getInputParser() const { return _inputParser.get(); }
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// Virtual functions
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virtual uint8_t *getLowMem() const = 0;
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virtual size_t getLowMemSize() const = 0;
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virtual void serializeState(jaffarCommon::serializer::Base &serializer) const = 0;
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virtual void deserializeState(jaffarCommon::deserializer::Base &deserializer) = 0;
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virtual void doSoftReset() = 0;
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virtual void doHardReset() = 0;
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virtual std::string getCoreName() const = 0;
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virtual void *getInternalEmulatorPointer() = 0;
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virtual void setNTABBlockSize(const size_t size) {};
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protected:
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virtual void enableStateBlockImpl(const std::string &block) = 0;
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virtual void disableStateBlockImpl(const std::string &block) = 0;
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virtual bool loadROMImpl(const uint8_t *romData, const size_t romSize) = 0;
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// Storage for the light state size
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size_t _stateSize;
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// Flag to determine whether to enable/disable rendering
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bool _doRendering = true;
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// Input parser instance
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std::unique_ptr<jaffar::InputParser> _inputParser;
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};
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