130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
#pragma once
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#include "logger.hpp"
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#include "controller.hpp"
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#define _LOW_MEM_SIZE 0x800
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#define _HIGH_MEM_SIZE 0x2000
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#define _NAMETABLES_MEM_SIZE 0x1000
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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() = default;
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virtual ~NESInstanceBase() = default;
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inline void advanceState(const std::string &move)
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{
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bool isInputValid = _controller.parseInputString(move);
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if (isInputValid == false) EXIT_WITH_ERROR("Move provided cannot be parsed: '%s'\n", move.c_str());
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// Parsing power
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if (_controller.getPowerButtonState() == true) EXIT_WITH_ERROR("Power button pressed, but not supported: '%s'\n", move.c_str());
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// Parsing reset
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if (_controller.getResetButtonState() == true) doSoftReset();
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// Parsing Controllers
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const auto controller1 = _controller.getController1Code();
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const auto controller2 = _controller.getController2Code();
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advanceStateImpl(controller1, controller2);
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}
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inline void setController1Type(const std::string& type)
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{
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bool isTypeRecognized = false;
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if (type == "None") { _controller.setController1Type(Controller::controller_t::none); isTypeRecognized = true; }
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if (type == "Joypad") { _controller.setController1Type(Controller::controller_t::joypad); isTypeRecognized = true; }
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if (type == "FourScore1") { _controller.setController1Type(Controller::controller_t::fourscore1); isTypeRecognized = true; }
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if (type == "FourScore2") { _controller.setController1Type(Controller::controller_t::fourscore2); isTypeRecognized = true; }
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if (isTypeRecognized == false) EXIT_WITH_ERROR("Input type not recognized: '%s'\n", type.c_str());
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}
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inline void setController2Type(const std::string& type)
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{
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bool isTypeRecognized = false;
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if (type == "None") { _controller.setController2Type(Controller::controller_t::none); isTypeRecognized = true; }
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if (type == "Joypad") { _controller.setController2Type(Controller::controller_t::joypad); isTypeRecognized = true; }
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if (type == "FourScore1") { _controller.setController2Type(Controller::controller_t::fourscore1); isTypeRecognized = true; }
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if (type == "FourScore2") { _controller.setController2Type(Controller::controller_t::fourscore2); isTypeRecognized = true; }
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if (isTypeRecognized == false) EXIT_WITH_ERROR("Input type not recognized: '%s'\n", type.c_str());
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}
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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 = getStateSize();
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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 = getStateSize();
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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 = getStateSize();
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}
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// Virtual functions
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virtual uint8_t *getLowMem() const = 0;
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virtual uint8_t *getNametableMem() const = 0;
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virtual uint8_t *getHighMem() const = 0;
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virtual const uint8_t *getChrMem() const = 0;
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virtual size_t getChrMemSize() const = 0;
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virtual void serializeState(uint8_t *state) const = 0;
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virtual void deserializeState(const uint8_t *state) = 0;
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virtual size_t getStateSize() const = 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() const = 0;
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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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virtual void advanceStateImpl(const Controller::port_t controller1, const Controller::port_t controller2) = 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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private:
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// Controller class for input parsing
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Controller _controller;
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};
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