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SourMesen
37de357b75
-ProcessCpuClock was used to check for events that don't need to be checked that often (auto-switch disk + auto fast-forward options). This has been moved to an EndFrame callback. -This was even slower than intended because of the call to _emu->GetFrameCount() which was, relatively speaking, fairly slow. To improve its performance (since it's used rarely for some things like turbo button processing), a separate GetFrameCount function was added on all console classes, and Emulator::GetFrameCount was also optimized to be faster when called from the emulation thread. When the auto-switch disk option is enabled, this can improve performance by about 25-30%. When the option is not enabled, this still improves performance by 4-5%.
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
#include "pch.h"
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#include "SNES/Input/SnesRumbleController.h"
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#include "SNES/SnesConsole.h"
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#include "SNES/InternalRegisters.h"
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#include "Shared/Emulator.h"
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#include "Shared/KeyManager.h"
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SnesRumbleController::SnesRumbleController(Emulator* emu, SnesConsole* console, uint8_t port, KeyMappingSet keyMappings) : SnesController(emu, port, keyMappings)
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{
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_console = console;
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_type = ControllerType::SnesRumbleController;
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}
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SnesRumbleController::~SnesRumbleController()
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{
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KeyManager::SetForceFeedback(0, 0);
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}
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void SnesRumbleController::Serialize(Serializer& s)
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{
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SnesController::Serialize(s);
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SV(_rumbleData);
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SV(_rumbleActive);
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SV(_lastRumbleFrame);
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}
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void SnesRumbleController::RefreshStateBuffer()
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{
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_rumbleData = 0;
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//The LRG rumble controller stops rumbling shortly after the last rumble command.
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//Not accurate, assumes the game regularly latches the controller.
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if(_rumbleActive) {
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if(_console->GetFrameCount() - _lastRumbleFrame > 2) {
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KeyManager::SetForceFeedback(0, 0);
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_rumbleActive = false;
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}
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}
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SnesController::RefreshStateBuffer();
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}
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uint8_t SnesRumbleController::ReadRam(uint16_t addr)
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{
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if(IsCurrentPort(addr)) {
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uint8_t ioPort = _console->GetInternalRegisters()->GetIoPortOutput();
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//Technically, when plugged into port 2, this uses bit 7, but activating the rumble
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//in both ports at the same time could potentially draw too much current, so the
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//UI current prevents picking a rumble controller for P2
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uint8_t ioBit = (GetPort() == 0 ? (ioPort >> 6) : (ioPort >> 7)) & 0x01;
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_rumbleData = (_rumbleData << 1) | ioBit;
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if((_rumbleData & 0xFF00) == 0x7200) {
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uint8_t rumble = _rumbleData & 0xFF;
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//Multiply by 4369 to use all values from 0 to 65535
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uint16_t rightRumble = (rumble >> 4) * 4369;
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uint16_t leftRumble = (rumble & 0x0F) * 4369;
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KeyManager::SetForceFeedback(rightRumble, leftRumble);
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_rumbleActive = true;
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_lastRumbleFrame = _console->GetFrameCount();
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}
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}
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return SnesController::ReadRam(addr);
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}
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