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kaizen/src/frontend/KaizenGui.cpp

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#include <KaizenGui.hpp>
#include <backend/Core.hpp>
#include <ImGuiImpl/GUI.hpp>
#include <ImGuiImpl/ProgressIndicators.hpp>
#include <ImGuiImpl/StatusBar.hpp>
#include <resources/gamecontrollerdb.h>
KaizenGui::KaizenGui() noexcept : window("Kaizen", 800, 600), settingsWindow(window), vulkanWidget(window.getHandle()), emuThread(fpsCounter, settingsWindow) {
gui::Initialize(n64::Core::GetInstance().parallel.wsi, window.getHandle());
SDL_InitSubSystem(SDL_INIT_GAMEPAD);
SDL_AddGamepadMapping(gamecontrollerdb_str);
}
KaizenGui::~KaizenGui() {
gui::Cleanup();
SDL_Quit();
}
void KaizenGui::QueryDevices(const SDL_Event &event) {
switch (event.type) {
case SDL_EVENT_GAMEPAD_ADDED:
if (!gamepad) {
const auto index = event.gdevice.which;
gamepad = SDL_OpenGamepad(index);
info("Found controller!");
info("Name: {}", SDL_GetGamepadName(gamepad));
info("Vendor: {}", SDL_GetGamepadVendor(gamepad));
}
break;
case SDL_EVENT_GAMEPAD_REMOVED:
if (gamepad)
SDL_CloseGamepad(gamepad);
break;
default: break;
}
}
void KaizenGui::HandleInput(const SDL_Event &event) {
const n64::Core& core = n64::Core::GetInstance();
n64::PIF &pif = n64::Core::GetMem().mmio.si.pif;
switch(event.type) {
case SDL_EVENT_GAMEPAD_AXIS_MOTION:
if(!gamepad)
break;
{
pif.UpdateButton(0, n64::Controller::Key::Z, SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_LEFT_TRIGGER) == SDL_JOYSTICK_AXIS_MAX);
pif.UpdateButton(0, n64::Controller::Key::CUp, SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_RIGHTY) <= -127);
pif.UpdateButton(0, n64::Controller::Key::CDown, SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_RIGHTY) >= 127);
pif.UpdateButton(0, n64::Controller::Key::CLeft, SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_RIGHTX) <= -127);
pif.UpdateButton(0, n64::Controller::Key::CRight, SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_RIGHTX) >= 127);
float xclamped = SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_LEFTX);
if (xclamped < 0) {
xclamped /= static_cast<float>(std::abs(SDL_JOYSTICK_AXIS_MAX));
} else {
xclamped /= SDL_JOYSTICK_AXIS_MAX;
}
xclamped *= 86;
float yclamped = SDL_GetGamepadAxis(gamepad, SDL_GAMEPAD_AXIS_LEFTY);
if (yclamped < 0) {
yclamped /= static_cast<float>(std::abs(SDL_JOYSTICK_AXIS_MIN));
} else {
yclamped /= SDL_JOYSTICK_AXIS_MAX;
}
yclamped *= 86;
pif.UpdateAxis(0, n64::Controller::Axis::Y, static_cast<s8>(-yclamped));
pif.UpdateAxis(0, n64::Controller::Axis::X, static_cast<s8>( xclamped));
}
break;
case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
case SDL_EVENT_GAMEPAD_BUTTON_UP:
if(!gamepad)
break;
pif.UpdateButton(0, n64::Controller::Key::A, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_SOUTH));
pif.UpdateButton(0, n64::Controller::Key::B, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_WEST));
pif.UpdateButton(0, n64::Controller::Key::Start, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_START));
pif.UpdateButton(0, n64::Controller::Key::DUp, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_DPAD_UP));
pif.UpdateButton(0, n64::Controller::Key::DDown, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_DPAD_DOWN));
pif.UpdateButton(0, n64::Controller::Key::DLeft, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_DPAD_LEFT));
pif.UpdateButton(0, n64::Controller::Key::DRight, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_DPAD_RIGHT));
pif.UpdateButton(0, n64::Controller::Key::LT, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER));
pif.UpdateButton(0, n64::Controller::Key::RT, SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER));
break;
case SDL_EVENT_KEY_DOWN:
case SDL_EVENT_KEY_UP:
{
const auto keys = SDL_GetKeyboardState(nullptr);
if((keys[SDL_SCANCODE_LCTRL] || keys[SDL_SCANCODE_RCTRL]) && keys[SDL_SCANCODE_O]) {
fileDialogOpen = true;
}
fastForward = keys[SDL_SCANCODE_SPACE];
if(!unlockFramerate)
core.parallel.SetFramerateUnlocked(fastForward);
if(core.romLoaded) {
if(keys[SDL_SCANCODE_P]) {
emuThread.TogglePause();
}
if(keys[SDL_SCANCODE_R]) {
emuThread.Reset();
}
if(keys[SDL_SCANCODE_Q]) {
emuThread.Stop();
}
}
if(gamepad)
break;
pif.UpdateButton(0, n64::Controller::Key::Z, keys[SDL_SCANCODE_Z]);
pif.UpdateButton(0, n64::Controller::Key::CUp, keys[SDL_SCANCODE_HOME]);
pif.UpdateButton(0, n64::Controller::Key::CDown, keys[SDL_SCANCODE_END]);
pif.UpdateButton(0, n64::Controller::Key::CLeft, keys[SDL_SCANCODE_DELETE]);
pif.UpdateButton(0, n64::Controller::Key::CRight, keys[SDL_SCANCODE_PAGEDOWN]);
pif.UpdateButton(0, n64::Controller::Key::A, keys[SDL_SCANCODE_X]);
pif.UpdateButton(0, n64::Controller::Key::B, keys[SDL_SCANCODE_C]);
pif.UpdateButton(0, n64::Controller::Key::Start, keys[SDL_SCANCODE_RETURN]);
pif.UpdateButton(0, n64::Controller::Key::DUp, keys[SDL_SCANCODE_I]);
pif.UpdateButton(0, n64::Controller::Key::DDown, keys[SDL_SCANCODE_K]);
pif.UpdateButton(0, n64::Controller::Key::DLeft, keys[SDL_SCANCODE_J]);
pif.UpdateButton(0, n64::Controller::Key::DRight, keys[SDL_SCANCODE_L]);
pif.UpdateButton(0, n64::Controller::Key::LT, keys[SDL_SCANCODE_A]);
pif.UpdateButton(0, n64::Controller::Key::RT, keys[SDL_SCANCODE_S]);
if (keys[SDL_SCANCODE_UP]) pif.UpdateAxis(0, n64::Controller::Axis::Y, 86);
else pif.UpdateAxis(0, n64::Controller::Axis::Y, 0);
if (keys[SDL_SCANCODE_DOWN]) pif.UpdateAxis(0, n64::Controller::Axis::Y, -86);
else pif.UpdateAxis(0, n64::Controller::Axis::Y, 0);
if (keys[SDL_SCANCODE_LEFT]) pif.UpdateAxis(0, n64::Controller::Axis::X, -86);
else pif.UpdateAxis(0, n64::Controller::Axis::X, 0);
if (keys[SDL_SCANCODE_RIGHT]) pif.UpdateAxis(0, n64::Controller::Axis::X, 86);
else pif.UpdateAxis(0, n64::Controller::Axis::X, 0);
}
break;
default: break;
}
}
std::pair<std::optional<s64>, std::optional<Util::Error::MemoryAccess>> RenderErrorMessageDetails() {
auto lastPC = Util::Error::GetLastPC();
if(lastPC.has_value()) {
ImGui::Text("%s", std::format("Occurred @ PC = {:016X}", Util::Error::GetLastPC().value()).c_str());
}
auto memoryAccess = Util::Error::GetMemoryAccess();
if(memoryAccess.has_value()) {
const auto [is_write, size, address, written_val] = memoryAccess.value();
ImGui::Text("%s", std::format("{} {}-bit value @ {:08X}{}", is_write ? "Writing" : "Reading",
static_cast<u8>(size), address,
is_write ? std::format(" (value = 0x{:X})", written_val) : "")
.c_str());
}
return {lastPC, memoryAccess};
}
void KaizenGui::RenderUI() {
n64::Core& core = n64::Core::GetInstance();
gui::StartFrame();
if(ImGui::BeginMainMenuBar()) {
if(ImGui::BeginMenu("File")) {
if(ImGui::MenuItem("Open", "Ctrl-O")) {
fileDialogOpen = true;
}
if(ImGui::MenuItem("Exit")) {
quit = true;
emuThread.Stop();
}
ImGui::EndMenu();
}
if(ImGui::BeginMenu("Emulation")) {
ImGui::BeginDisabled(!core.romLoaded);
if(ImGui::MenuItem(core.pause ? "Resume" : "Pause", "P")) {
emuThread.TogglePause();
}
if(ImGui::MenuItem("Reset", "R")) {
emuThread.Reset();
}
if(ImGui::MenuItem("Stop", "Q")) {
emuThread.Stop();
core.romLoaded = false;
}
if(ImGui::Checkbox("Unlock framerate", &unlockFramerate)) {
core.parallel.SetFramerateUnlocked(unlockFramerate);
}
if(ImGui::MenuItem("Open Debugger")) {
debugger.Open();
}
ImGui::EndDisabled();
if(ImGui::MenuItem("Options")) {
settingsWindow.isOpen = true;
}
ImGui::EndMenu();
}
if(ImGui::BeginMenu("Help")) {
if(ImGui::MenuItem("About")) {
aboutOpen = true;
}
ImGui::EndMenu();
}
ImGui::EndMainMenuBar();
}
if(!Util::Error::IsHandled()) {
ImGui::OpenPopup(Util::Error::GetSeverity().as_c_str());
}
if(settingsWindow.isOpen) {
ImGui::OpenPopup("Settings", ImGuiPopupFlags_None);
}
if(aboutOpen) {
ImGui::OpenPopup("About Kaizen");
}
settingsWindow.render();
debugger.render();
const ImVec2 center = ImGui::GetMainViewport()->GetCenter();
ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
if (ImGui::BeginPopupModal("About Kaizen", &aboutOpen, ImGuiWindowFlags_AlwaysAutoResize)) {
ImGui::Text("Kaizen is a Nintendo 64 emulator that strives");
ImGui::Text("to offer a friendly user experience and compatibility.");
ImGui::Text("Kaizen is licensed under the BSD 3-clause license.");
ImGui::Text("Nintendo 64 is a registered trademark of Nintendo Co., Ltd.");
if(ImGui::Button("OK")) {
aboutOpen = false;
ImGui::CloseCurrentPopup();
}
ImGui::EndPopup();
}
ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
if (ImGui::BeginPopupModal(Util::Error::GetSeverity().as_c_str(), nullptr, ImGuiWindowFlags_AlwaysAutoResize)) {
emuThread.TogglePause();
switch(Util::Error::GetSeverity().as_enum) {
case Util::Error::Severity::WARN: {
ImGui::PushStyleColor(ImGuiCol_TitleBg, 0x8054eae5);
ImGui::PushStyleColor(ImGuiCol_Text, 0xff7be4e1);
ImGui::Text("Warning of type: %s", Util::Error::GetType().as_c_str());
ImGui::PopStyleColor();
ImGui::PopStyleColor();
ImGui::Text(R"(Warning message: "%s")", Util::Error::GetError().c_str());
RenderErrorMessageDetails();
if(n64::Core::GetInstance().romLoaded && !n64::Core::GetInstance().pause) {
const bool ignore = ImGui::Button("Try continuing"); ImGui::SameLine();
const bool stop = ImGui::Button("Stop emulation"); ImGui::SameLine();
const bool chooseAnother = ImGui::Button("Choose another ROM");
if(ignore || stop || chooseAnother) {
Util::Error::SetHandled();
ImGui::CloseCurrentPopup();
}
if(ignore) {
emuThread.TogglePause();
}
if(stop || chooseAnother) {
emuThread.Stop();
}
if(chooseAnother) {
fileDialogOpen = true;
}
break;
}
if(ImGui::Button("OK"))
ImGui::CloseCurrentPopup();
} break;
case Util::Error::Severity::UNRECOVERABLE: {
emuThread.Stop();
ImGui::PushStyleColor(ImGuiCol_TitleBg, 0x800000ff);
ImGui::PushStyleColor(ImGuiCol_Text, 0xff3b3bbf);
ImGui::Text("An unrecoverable error has occurred! Emulation has been stopped...");
ImGui::Text("Error of type: %s", Util::Error::GetType().as_c_str());
ImGui::PopStyleColor();
ImGui::PopStyleColor();
ImGui::Text(R"(Error message: "%s")", Util::Error::GetError().c_str());
RenderErrorMessageDetails();
if(ImGui::Button("OK"))
ImGui::CloseCurrentPopup();
} break;
case Util::Error::Severity::NON_FATAL: {
ImGui::PushStyleColor(ImGuiCol_TitleBg, 0x800000ff);
ImGui::PushStyleColor(ImGuiCol_Text, 0xff3b3bbf);
ImGui::Text("An error has occurred!");
ImGui::Text("Error of type: %s", Util::Error::GetType().as_c_str());
ImGui::PopStyleColor();
ImGui::PopStyleColor();
ImGui::Text(R"(Error message: "%s")", Util::Error::GetError().c_str());
auto [lastPC, memoryAccess] = RenderErrorMessageDetails();
const bool ignore = ImGui::Button("Try continuing"); ImGui::SameLine();
const bool stop = ImGui::Button("Stop emulation"); ImGui::SameLine();
const bool chooseAnother = ImGui::Button("Choose another ROM");
const bool openInDebugger = lastPC.has_value() ? ImGui::Button("Add breakpoint at this PC and open the debugger") : false;
if(ignore || stop || chooseAnother || openInDebugger) {
Util::Error::SetHandled();
ImGui::CloseCurrentPopup();
}
if(ignore) {
emuThread.TogglePause();
}
if(stop || chooseAnother) {
emuThread.Stop();
}
if(chooseAnother) {
fileDialogOpen = true;
}
if(openInDebugger) {
if(!n64::Core::GetInstance().breakpoints.contains(lastPC.value()))
n64::Core::GetInstance().ToggleBreakpoint(lastPC.value());
debugger.Open();
emuThread.Reset();
}
} break;
default: break;
}
ImGui::EndPopup();
}
if(ImGui::BeginMainStatusBar()) {
ImGui::Text("FPS: %.2f", ImGui::GetIO().Framerate);
ImGui::EndMainStatusBar();
}
if (shouldDisplaySpinner) {
ImGui::SetNextWindowPos({static_cast<float>(width) * 0.5f, static_cast<float>(height) * 0.5f}, 0, ImVec2(0.5f, 0.5f));
ImGui::PushStyleColor(ImGuiCol_WindowBg, IM_COL32_BLACK_TRANS);
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
ImGui::Begin("##spinnerContainer", nullptr, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoDecoration);
ImGui::Spinner("##spinner", 10.f, 4.f, ImGui::GetColorU32(ImGui::GetStyle().Colors[ImGuiCol_TitleBgActive]));
ImGui::SameLine();
ImGui::PushFont(nullptr, ImGui::GetStyle().FontSizeBase * 2.f);
ImGui::Text("Loading \"%s\"...", fs::path(fileToLoad).filename().string().c_str());
ImGui::PopFont();
ImGui::End();
ImGui::PopStyleVar();
ImGui::PopStyleColor();
}
ImGui::Render();
if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) {
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault();
}
if(fileDialogOpen) {
fileDialogOpen = false;
constexpr SDL_DialogFileFilter filters[] = {{"All files", "*"}, {"Nintendo 64 executable", "n64;z64;v64"}, {"Nintendo 64 executable archive", "rar;tar;zip;7z"}};
SDL_ShowOpenFileDialog([](void *userdata, const char * const *filelist, int) {
auto kaizen = static_cast<KaizenGui*>(userdata);
if (!filelist) {
panic("An error occured: {}", SDL_GetError());
}
if (!*filelist) {
warn("The user did not select any file.");
warn("Most likely, the dialog was canceled.");
return;
}
kaizen->fileToLoad = *filelist;
kaizen->shouldDisplaySpinner = true;
std::thread fileWorker(&KaizenGui::FileWorker, kaizen);
fileWorker.detach();
}, this, window.getHandle(), filters, 3, nullptr, false);
}
if(minimized)
return;
if(core.romLoaded) {
core.parallel.UpdateScreen<true>();
return;
}
core.parallel.UpdateScreen<false>();
}
void KaizenGui::LoadROM(const std::string &path) noexcept {
n64::Core& core = n64::Core::GetInstance();
core.LoadROM(path);
const auto gameNameDB = n64::Core::GetMem().rom.gameNameDB;
SDL_SetWindowTitle(window.getHandle(), ("Kaizen - " + gameNameDB).c_str());
}
void KaizenGui::run() {
while(!quit) {
SDL_Event e;
while (SDL_PollEvent(&e)) {
ImGui_ImplSDL3_ProcessEvent(&e);
switch(e.type) {
case SDL_EVENT_QUIT:
quit = true;
emuThread.Stop();
break;
case SDL_EVENT_WINDOW_MINIMIZED:
minimized = true;
break;
case SDL_EVENT_WINDOW_RESTORED:
minimized = false;
break;
default:
}
QueryDevices(e);
HandleInput(e);
}
SDL_GetWindowSize(window.getHandle(), &width, &height);
emuThread.run();
RenderUI();
}
}
void KaizenGui::LoadTAS(const std::string &path) noexcept {
n64::Core::GetInstance().LoadTAS(fs::path(path));
}
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