early-access version 1255

src/yuzu_cmd/emu_window/emu_window_sdl2.cpp

@@ -0,0 +1,198 @@
+// 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"
+
+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));
+    input_subsystem->GetMouse()->MouseMove(x, y);
+}
+
+void EmuWindow_SDL2::OnMouseButton(u32 button, u8 state, s32 x, s32 y) {
+    if (button == SDL_BUTTON_LEFT) {
+        if (state == SDL_PRESSED) {
+            TouchPressed((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
+        } else {
+            TouchReleased();
+        }
+    } else if (button == SDL_BUTTON_RIGHT) {
+        if (state == SDL_PRESSED) {
+            input_subsystem->GetMouse()->PressButton(x, y, button);
+        } else {
+            input_subsystem->GetMouse()->ReleaseButton(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);
+}
+
+void EmuWindow_SDL2::OnFingerMotion(float x, float y) {
+    const auto [px, py] = TouchToPixelPos(x, y);
+    TouchMoved(px, py);
+}
+
+void EmuWindow_SDL2::OnFingerUp() {
+    TouchReleased();
+}
+
+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.game_fps,
+                        results.emulation_speed * 100.0);
+        SDL_SetWindowTitle(render_window, title.c_str());
+        last_time = current_time;
+    }
+}
+
+void EmuWindow_SDL2::OnMinimalClientAreaChangeRequest(std::pair<unsigned, unsigned> minimal_size) {
+    SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
+}