2 files changed, 236 insertions, 0 deletions

diff --git a/src/yuzu_cmd/emu_window/emu_window_sdl2.cpp b/src/yuzu_cmd/emu_window/emu_window_sdl2.cpp
new file mode 100644
index 000000000..e65b04e4b
--- /dev/null
+++ b/src/yuzu_cmd/emu_window/emu_window_sdl2.cpp
@@ -0,0 +1,177 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <cstdlib>
+#include <string>
+#define SDL_MAIN_HANDLED
+#include <SDL.h>
+#include <glad/glad.h>
+#include "citra/emu_window/emu_window_sdl2.h"
+#include "common/logging/log.h"
+#include "common/scm_rev.h"
+#include "common/string_util.h"
+#include "core/settings.h"
+#include "input_common/keyboard.h"
+#include "input_common/main.h"
+#include "input_common/motion_emu.h"
+#include "network/network.h"
+
+void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
+    TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
+    InputCommon::GetMotionEmu()->Tilt(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) {
+            InputCommon::GetMotionEmu()->BeginTilt(x, y);
+        } else {
+            InputCommon::GetMotionEmu()->EndTilt();
+        }
+    }
+}
+
+void EmuWindow_SDL2::OnKeyEvent(int key, u8 state) {
+    if (state == SDL_PRESSED) {
+        InputCommon::GetKeyboard()->PressKey(key);
+    } else if (state == SDL_RELEASED) {
+        InputCommon::GetKeyboard()->ReleaseKey(key);
+    }
+}
+
+bool EmuWindow_SDL2::IsOpen() const {
+    return is_open;
+}
+
+void EmuWindow_SDL2::OnResize() {
+    int width, height;
+    SDL_GetWindowSize(render_window, &width, &height);
+    UpdateCurrentFramebufferLayout(width, height);
+}
+
+EmuWindow_SDL2::EmuWindow_SDL2() {
+    InputCommon::Init();
+    Network::Init();
+
+    SDL_SetMainReady();
+
+    // Initialize the window
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        LOG_CRITICAL(Frontend, "Failed to initialize SDL2! Exiting...");
+        exit(1);
+    }
+
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+    SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+    SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
+
+    std::string window_title = Common::StringFromFormat("yuzu %s| %s-%s ", Common::g_build_name,
+                                                        Common::g_scm_branch, Common::g_scm_desc);
+    render_window =
+        SDL_CreateWindow(window_title.c_str(),
+                         SDL_WINDOWPOS_UNDEFINED, // x position
+                         SDL_WINDOWPOS_UNDEFINED, // y position
+                         Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height,
+                         SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
+
+    if (render_window == nullptr) {
+        LOG_CRITICAL(Frontend, "Failed to create SDL2 window! Exiting...");
+        exit(1);
+    }
+
+    gl_context = SDL_GL_CreateContext(render_window);
+
+    if (gl_context == nullptr) {
+        LOG_CRITICAL(Frontend, "Failed to create SDL2 GL context! Exiting...");
+        exit(1);
+    }
+
+    if (!gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress))) {
+        LOG_CRITICAL(Frontend, "Failed to initialize GL functions! Exiting...");
+        exit(1);
+    }
+
+    OnResize();
+    OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
+    SDL_PumpEvents();
+    SDL_GL_SetSwapInterval(Settings::values.use_vsync);
+
+    DoneCurrent();
+}
+
+EmuWindow_SDL2::~EmuWindow_SDL2() {
+    SDL_GL_DeleteContext(gl_context);
+    SDL_Quit();
+
+    Network::Shutdown();
+    InputCommon::Shutdown();
+}
+
+void EmuWindow_SDL2::SwapBuffers() {
+    SDL_GL_SwapWindow(render_window);
+}
+
+void EmuWindow_SDL2::PollEvents() {
+    SDL_Event event;
+
+    // SDL_PollEvent returns 0 when there are no more events in the event queue
+    while (SDL_PollEvent(&event)) {
+        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:
+            case SDL_WINDOWEVENT_MINIMIZED:
+                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:
+            OnMouseMotion(event.motion.x, event.motion.y);
+            break;
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            OnMouseButton(event.button.button, event.button.state, event.button.x, event.button.y);
+            break;
+        case SDL_QUIT:
+            is_open = false;
+            break;
+        }
+    }
+}
+
+void EmuWindow_SDL2::MakeCurrent() {
+    SDL_GL_MakeCurrent(render_window, gl_context);
+}
+
+void EmuWindow_SDL2::DoneCurrent() {
+    SDL_GL_MakeCurrent(render_window, nullptr);
+}
+
+void EmuWindow_SDL2::OnMinimalClientAreaChangeRequest(
+    const std::pair<unsigned, unsigned>& minimal_size) {
+
+    SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
+}
diff --git a/src/yuzu_cmd/emu_window/emu_window_sdl2.h b/src/yuzu_cmd/emu_window/emu_window_sdl2.h
new file mode 100644
index 000000000..3664d2fbe
--- /dev/null
+++ b/src/yuzu_cmd/emu_window/emu_window_sdl2.h
@@ -0,0 +1,59 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <utility>
+#include "core/frontend/emu_window.h"
+
+struct SDL_Window;
+
+class EmuWindow_SDL2 : public EmuWindow {
+public:
+    EmuWindow_SDL2();
+    ~EmuWindow_SDL2();
+
+    /// Swap buffers to display the next frame
+    void SwapBuffers() override;
+
+    /// Polls window events
+    void PollEvents() override;
+
+    /// Makes the graphics context current for the caller thread
+    void MakeCurrent() override;
+
+    /// Releases the GL context from the caller thread
+    void DoneCurrent() override;
+
+    /// Whether the window is still open, and a close request hasn't yet been sent
+    bool IsOpen() const;
+
+private:
+    /// Called by PollEvents when a key is pressed or released.
+    void OnKeyEvent(int key, u8 state);
+
+    /// Called by PollEvents when the mouse moves.
+    void OnMouseMotion(s32 x, s32 y);
+
+    /// Called by PollEvents when a mouse button is pressed or released
+    void OnMouseButton(u32 button, u8 state, s32 x, s32 y);
+
+    /// Called by PollEvents when any event that may cause the window to be resized occurs
+    void OnResize();
+
+    /// Called when a configuration change affects the minimal size of the window
+    void OnMinimalClientAreaChangeRequest(
+        const std::pair<unsigned, unsigned>& minimal_size) override;
+
+    /// Is the window still open?
+    bool is_open = true;
+
+    /// Internal SDL2 render window
+    SDL_Window* render_window;
+
+    using SDL_GLContext = void*;
+    /// The OpenGL context associated with the window
+    SDL_GLContext gl_context;
+};