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First stuff running with scheduler

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wheremyfoodat 2024-01-22 02:29:14 +02:00
parent 97f97dc6e2
commit fa82dad38d
5 changed files with 86 additions and 36 deletions
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52
src/emulator.cpp
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@ -17,10 +17,11 @@ __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 1;
#endif
Emulator::Emulator()
: config(getConfigPath()), kernel(cpu, memory, gpu, config), cpu(memory, kernel), gpu(memory, config),
memory(cpu.getTicksRef(), config), cheats(memory, kernel.getServiceManager().getHID()), lua(memory), running(false), programRunning(false)
: config(getConfigPath()), kernel(cpu, memory, gpu, config), cpu(memory, kernel, *this), gpu(memory, config), memory(cpu.getTicksRef(), config),
cheats(memory, kernel.getServiceManager().getHID()), lua(memory), running(false), programRunning(false)
#ifdef PANDA3DS_ENABLE_HTTP_SERVER
, httpServer(this)
,
httpServer(this)
#endif
{
#ifdef PANDA3DS_ENABLE_DISCORD_RPC
@ -45,6 +46,10 @@ void Emulator::reset(ReloadOption reload) {
cpu.reset();
gpu.reset();
memory.reset();
// Reset scheduler and add a VBlank event
scheduler.reset();
scheduler.addEvent(Scheduler::EventType::VBlank, CPU::ticksPerSec / 60);
// Kernel must be reset last because it depends on CPU/Memory state
kernel.reset();
@ -99,12 +104,6 @@ void Emulator::runFrame() {
if (running) {
cpu.runFrame(); // Run 1 frame of instructions
gpu.display(); // Display graphics
lua.signalEvent(LuaEvent::Frame);
// Send VBlank interrupts
ServiceManager& srv = kernel.getServiceManager();
srv.sendGPUInterrupt(GPUInterrupt::VBlank0);
srv.sendGPUInterrupt(GPUInterrupt::VBlank1);
// Run cheats if any are loaded
if (cheats.haveCheats()) [[unlikely]] {
@ -117,6 +116,41 @@ void Emulator::runFrame() {
}
}
void Emulator::pollScheduler() {
auto& events = scheduler.events;
// Pop events until there's none pending anymore
while (scheduler.currentTimestamp > scheduler.nextTimestamp) {
// Read event timestamp and type, pop it from the scheduler and handle it
auto [time, eventType] = std::move(*events.begin());
events.erase(events.begin());
scheduler.updateNextTimestamp();
switch (eventType) {
case Scheduler::EventType::VBlank: {
// Signal that we've reached the end of a frame
frameDone = true;
lua.signalEvent(LuaEvent::Frame);
// Send VBlank interrupts
ServiceManager& srv = kernel.getServiceManager();
srv.sendGPUInterrupt(GPUInterrupt::VBlank0);
srv.sendGPUInterrupt(GPUInterrupt::VBlank1);
// Queue next VBlank event
scheduler.addEvent(Scheduler::EventType::VBlank, time + CPU::ticksPerSec / 60);
break;
}
default: {
Helpers::panic("Scheduler: Unimplemented event type received: %d\n", static_cast<int>(eventType));
break;
}
}
}
}
bool Emulator::loadROM(const std::filesystem::path& path) {
// Reset the emulator if we've already loaded a ROM
if (romType != ROMType::None) {