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https://github.com/SourMesen/Mesen2.git
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119 lines
No EOL
3 KiB
C++
119 lines
No EOL
3 KiB
C++
#pragma once
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#include "pch.h"
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#include "Shared/BaseControlDevice.h"
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#include "Shared/KeyManager.h"
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#include "Shared/EmuSettings.h"
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#include "Shared/Emulator.h"
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#include "Utilities/Serializer.h"
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class SuborMouse : public BaseControlDevice
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{
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private:
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uint32_t _stateBuffer = 0;
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uint8_t _packetBytes[3] = {};
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uint8_t _packetPos = 0;
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uint8_t _packetSize = 1;
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protected:
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bool HasCoordinates() override { return true; }
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enum Buttons { Left = 0, Right };
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void Serialize(Serializer& s) override
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{
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BaseControlDevice::Serialize(s);
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SVArray(_packetBytes, 3);
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SV(_stateBuffer); SV(_packetPos); SV(_packetSize);
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}
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void InternalSetStateFromInput() override
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{
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for(KeyMapping& keyMapping : _keyMappings) {
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SetPressedState(Buttons::Left, KeyManager::IsKeyPressed(keyMapping.CustomKeys[0]));
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SetPressedState(Buttons::Right, KeyManager::IsKeyPressed(keyMapping.CustomKeys[1]));
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}
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SetMovement(KeyManager::GetMouseMovement(_emu, _emu->GetSettings()->GetInputConfig().MouseSensitivity));
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}
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public:
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SuborMouse(Emulator* emu, uint8_t port, KeyMappingSet keyMappings) : BaseControlDevice(emu, ControllerType::SuborMouse, port, keyMappings)
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{
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}
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void WriteRam(uint16_t addr, uint8_t value) override
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{
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StrobeProcessWrite(value);
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}
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uint8_t ReadRam(uint16_t addr) override
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{
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uint8_t output = 0;
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if((addr == 0x4016 && (_port & 0x01) == 0) || (addr == 0x4017 && (_port & 0x01) == 1)) {
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StrobeProcessRead();
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output = (_stateBuffer & 0x80) >> 7;
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if(_port >= 2) {
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output <<= 1;
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}
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_stateBuffer <<= 1;
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}
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return output;
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}
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void RefreshStateBuffer() override
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{
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if(_packetPos < _packetSize - 1) {
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//3-byte packet is not done yet, move to next byte
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_packetPos++;
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_stateBuffer = _packetBytes[_packetPos];
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return;
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}
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MouseMovement mov = GetMovement();
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uint32_t upFlag = mov.dy < 0 ? 0x80 : 0;
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uint32_t leftFlag = mov.dx < 0 ? 0x80 : 0;
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mov.dx = std::min<int16_t>(std::abs(mov.dx), 31);
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mov.dy = std::min<int16_t>(std::abs(mov.dy), 31);
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if(mov.dx <= 1 && mov.dy <= 1) {
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//1-byte packet
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_packetBytes[0] =
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(IsPressed(SuborMouse::Buttons::Left) ? 0x80 : 0) |
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(IsPressed(SuborMouse::Buttons::Right) ? 0x40 : 0) |
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(leftFlag && mov.dx ? 0x30 : (mov.dx ? 0x10 : 0)) |
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(upFlag && mov.dy ? 0x0C : (mov.dy ? 0x04 : 0));
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_packetBytes[1] = 0;
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_packetBytes[2] = 0;
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_packetSize = 1;
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} else {
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//3-byte packet
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_packetBytes[0] =
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(IsPressed(SuborMouse::Buttons::Left) ? 0x80 : 0) |
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(IsPressed(SuborMouse::Buttons::Right) ? 0x40 : 0) |
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(leftFlag ? 0x20 : 0) |
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(mov.dx & 0x10) |
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(upFlag ? 0x08 : 0) |
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((mov.dy & 0x10) >> 2) |
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0x01;
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_packetBytes[1] = ((mov.dx & 0x0F) << 2) | 0x02;
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_packetBytes[2] = ((mov.dy & 0x0F) << 2) | 0x03;
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_packetSize = 3;
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}
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_packetPos = 0;
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_stateBuffer = _packetBytes[0];
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}
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vector<DeviceButtonName> GetKeyNameAssociations() override
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{
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return {
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{ "xOffset", BaseControlDevice::DeviceXCoordButtonId, true },
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{ "yOffset", BaseControlDevice::DeviceYCoordButtonId, true },
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{ "left", Buttons::Left },
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{ "right", Buttons::Right }
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};
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}
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}; |