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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <SDL.h>
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "core/core.h"
#include "core/perf_stats.h"
#include "input_common/keyboard.h"
#include "input_common/main.h"
#include "input_common/mouse/mouse_input.h"
#include "input_common/sdl/sdl.h"
#include "yuzu_cmd/emu_window/emu_window_sdl2.h"
#include "yuzu_cmd/yuzu_icon.h"
EmuWindow_SDL2::EmuWindow_SDL2(InputCommon::InputSubsystem* input_subsystem_)
: input_subsystem{input_subsystem_} {
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
LOG_CRITICAL(Frontend, "Failed to initialize SDL2! Exiting...");
exit(1);
}
input_subsystem->Initialize();
SDL_SetMainReady();
}
EmuWindow_SDL2::~EmuWindow_SDL2() {
input_subsystem->Shutdown();
SDL_Quit();
}
void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0), 0);
input_subsystem->GetMouse()->MouseMove(x, y, 0, 0);
}
MouseInput::MouseButton EmuWindow_SDL2::SDLButtonToMouseButton(u32 button) const {
switch (button) {
case SDL_BUTTON_LEFT:
return MouseInput::MouseButton::Left;
case SDL_BUTTON_RIGHT:
return MouseInput::MouseButton::Right;
case SDL_BUTTON_MIDDLE:
return MouseInput::MouseButton::Wheel;
case SDL_BUTTON_X1:
return MouseInput::MouseButton::Backward;
case SDL_BUTTON_X2:
return MouseInput::MouseButton::Forward;
default:
return MouseInput::MouseButton::Undefined;
}
}
void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
const auto mouse_button = SDLButtonToMouseButton(button);
if (button == SDL_BUTTON_LEFT) {
if (state == SDL_PRESSED) {
TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0), 0);
} else {
TouchReleased(0);
}
} else {
if (state == SDL_PRESSED) {
input_subsystem->GetMouse()->PressButton(x, y, mouse_button);
} else {
input_subsystem->GetMouse()->ReleaseButton(mouse_button);
}
}
}
std::pair<unsigned, unsigned> EmuWindow_SDL2::TouchToPixelPos(float touch_x, float touch_y) const {
int w, h;
SDL_GetWindowSize(render_window, &w, &h);
touch_x *= w;
touch_y *= h;
return {static_cast<unsigned>(std::max(std::round(touch_x), 0.0f)),
static_cast<unsigned>(std::max(std::round(touch_y), 0.0f))};
}
void EmuWindow_SDL2::OnFingerDown(float x, float y) {
// TODO(NeatNit): keep track of multitouch using the fingerID and a dictionary of some kind
// This isn't critical because the best we can do when we have that is to average them, like the
// 3DS does
const auto [px, py] = TouchToPixelPos(x, y);
TouchPressed(px, py, 0);
}
void EmuWindow_SDL2::OnFingerMotion(float x, float y) {
const auto [px, py] = TouchToPixelPos(x, y);
TouchMoved(px, py, 0);
}
void EmuWindow_SDL2::OnFingerUp() {
TouchReleased(0);
}
void EmuWindow_SDL2::OnKeyEvent(int key, u8 state) {
if (state == SDL_PRESSED) {
input_subsystem->GetKeyboard()->PressKey(key);
} else if (state == SDL_RELEASED) {
input_subsystem->GetKeyboard()->ReleaseKey(key);
}
}
bool EmuWindow_SDL2::IsOpen() const {
return is_open;
}
bool EmuWindow_SDL2::IsShown() const {
return is_shown;
}
void EmuWindow_SDL2::OnResize() {
int width, height;
SDL_GetWindowSize(render_window, &width, &height);
UpdateCurrentFramebufferLayout(width, height);
}
void EmuWindow_SDL2::Fullscreen() {
if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN) == 0) {
return;
}
LOG_ERROR(Frontend, "Fullscreening failed: {}", SDL_GetError());
// Try a different fullscreening method
LOG_INFO(Frontend, "Attempting to use borderless fullscreen...");
if (SDL_SetWindowFullscreen(render_window, SDL_WINDOW_FULLSCREEN_DESKTOP) == 0) {
return;
}
LOG_ERROR(Frontend, "Borderless fullscreening failed: {}", SDL_GetError());
// Fallback algorithm: Maximise window.
// Works on all systems (unless something is seriously wrong), so no fallback for this one.
LOG_INFO(Frontend, "Falling back on a maximised window...");
SDL_MaximizeWindow(render_window);
}
void EmuWindow_SDL2::WaitEvent() {
// Called on main thread
SDL_Event event;
if (!SDL_WaitEvent(&event)) {
LOG_CRITICAL(Frontend, "SDL_WaitEvent failed: {}", SDL_GetError());
exit(1);
}
switch (event.type) {
case SDL_WINDOWEVENT:
switch (event.window.event) {
case SDL_WINDOWEVENT_SIZE_CHANGED:
case SDL_WINDOWEVENT_RESIZED:
case SDL_WINDOWEVENT_MAXIMIZED:
case SDL_WINDOWEVENT_RESTORED:
OnResize();
break;
case SDL_WINDOWEVENT_MINIMIZED:
case SDL_WINDOWEVENT_EXPOSED:
is_shown = event.window.event == SDL_WINDOWEVENT_EXPOSED;
OnResize();
break;
case SDL_WINDOWEVENT_CLOSE:
is_open = false;
break;
}
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
OnKeyEvent(static_cast<int>(event.key.keysym.scancode), event.key.state);
break;
case SDL_MOUSEMOTION:
// ignore if it came from touch
if (event.button.which != SDL_TOUCH_MOUSEID)
OnMouseMotion(event.motion.x, event.motion.y);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
// ignore if it came from touch
if (event.button.which != SDL_TOUCH_MOUSEID) {
OnMouseButton(event.button.button, event.button.state, event.button.x, event.button.y);
}
break;
case SDL_FINGERDOWN:
OnFingerDown(event.tfinger.x, event.tfinger.y);
break;
case SDL_FINGERMOTION:
OnFingerMotion(event.tfinger.x, event.tfinger.y);
break;
case SDL_FINGERUP:
OnFingerUp();
break;
case SDL_QUIT:
is_open = false;
break;
default:
break;
}
const u32 current_time = SDL_GetTicks();
if (current_time > last_time + 2000) {
const auto results = Core::System::GetInstance().GetAndResetPerfStats();
const auto title =
fmt::format("yuzu {} | {}-{} | FPS: {:.0f} ({:.0f}%)", Common::g_build_fullname,
Common::g_scm_branch, Common::g_scm_desc, results.average_game_fps,
results.emulation_speed * 100.0);
SDL_SetWindowTitle(render_window, title.c_str());
last_time = current_time;
}
}
void EmuWindow_SDL2::SetWindowIcon() {
SDL_RWops* const yuzu_icon_stream = SDL_RWFromConstMem((void*)yuzu_icon, yuzu_icon_size);
if (yuzu_icon_stream == nullptr) {
LOG_WARNING(Frontend, "Failed to create yuzu icon stream.");
return;
}
SDL_Surface* const window_icon = SDL_LoadBMP_RW(yuzu_icon_stream, 1);
if (window_icon == nullptr) {
LOG_WARNING(Frontend, "Failed to read BMP from stream.");
return;
}
// The icon is attached to the window pointer
SDL_SetWindowIcon(render_window, window_icon);
SDL_FreeSurface(window_icon);
}
void EmuWindow_SDL2::OnMinimalClientAreaChangeRequest(std::pair<u32, u32> minimal_size) {
SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
}
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