24903561834

Committed 24 Apr 2026 05:43PM UTC coverage: 50.223% (-0.2%) from 50.384%

Build # 24903561834

Build Type

Pull #1890

github

Committed by

web-flow

Commit Message

Merge 70c42b3ee into 45e8bc010

Pull Request Pull Request #1890: Add support for borderless Windows

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167 of 641 new or added lines in 44 files covered. (26.05%)

25 existing lines in 8 files now uncovered.

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8.6

/extras/videoDrivers/SDL2/VideoSDL2.cpp

// Copyright (C) 2005 - 2026 Settlers Freaks (sf-team at siedler25.org)
//
// SPDX-License-Identifier: GPL-2.0-or-later

#include "VideoSDL2.h"
#include "RTTR_Assert.h"
#include "driver/Interface.h"
#include "driver/VideoDriverLoaderInterface.h"
#include "driver/VideoInterface.h"
#include "enum_cast.hpp"
#include "helpers/LSANUtils.h"
#include "helpers/containerUtils.h"
#include "icon.h"
#include "openglCfg.hpp"
#include <s25util/utf8.h>
#include <boost/nowide/iostream.hpp>
#include <SDL.h>
#include <SDL_hints.h>
#include <SDL_video.h>
#include <algorithm>
#include <memory>

#ifdef _WIN32
#    include <boost/nowide/convert.hpp>
#    ifndef WIN32_LEAN_AND_MEAN
#        define WIN32_LEAN_AND_MEAN
#    endif
#    include <windows.h> // Avoid "Windows headers require the default packing option" due to SDL2
#    include <SDL_syswm.h>
#endif // _WIN32
#if RTTR_OGL_GL4ES
#    include <gl4esinit.h>
#endif

namespace {

/// Check that the (SDL) call returns success or print the error
/// Can be used in conditions: if(CHECK_SDL(SDL_Foo()))
bool CHECK_SDL(int sdlResult)
{
    if(sdlResult >= 0)
        return true;
    VideoSDL2::PrintError();
    return false;
}

template<typename T>
struct SDLMemoryDeleter
{
    void operator()(T* p) const { SDL_free(p); }
};

template<typename T>
using SDL_memory = std::unique_ptr<T, SDLMemoryDeleter<T>>;

void setSpecialKeys(KeyEvent& ke, const SDL_Keymod mod)
{
    ke.ctrl = (mod & KMOD_CTRL);
    ke.shift = (mod & KMOD_SHIFT);
    ke.alt = (mod & KMOD_ALT);
}
void setSpecialKeys(KeyEvent& ke)
{
    setSpecialKeys(ke, SDL_GetModState());
}
} // namespace

IVideoDriver* CreateVideoInstance(VideoDriverLoaderInterface* CallBack)
{
    return new VideoSDL2(CallBack);
}

void FreeVideoInstance(IVideoDriver* driver)
{
    delete driver;
}

const char* GetDriverName()
{
#if RTTR_OGL_GL4ES
    return "(SDL2) OpenGL-ES gl4es via SDL2-Library";
#else
    return "(SDL2) OpenGL via SDL2-Library";
#endif
}

VideoSDL2::VideoSDL2(VideoDriverLoaderInterface* CallBack) : VideoDriver(CallBack), window(nullptr), context(nullptr) {}

VideoSDL2::~VideoSDL2()
{
    CleanUp();
}

const char* VideoSDL2::GetName() const
{
    return GetDriverName();
}

bool VideoSDL2::Initialize()
{
    initialized = false;
    rttr::ScopedLeakDisabler _;
    // Do not emulate mouse events using touch
    SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");
    if(CHECK_SDL(SDL_InitSubSystem(SDL_INIT_VIDEO)))
        initialized = true;

    return initialized;
}

void VideoSDL2::CleanUp()
{
    if(!initialized)
        return;

    if(context)
        SDL_GL_DeleteContext(context);
    if(window)
        SDL_DestroyWindow(window);
    SDL_QuitSubSystem(SDL_INIT_VIDEO);
    SDL_Quit();
    initialized = false;
}

void VideoSDL2::UpdateCurrentSizes()
{
    int w, h, w2, h2;
    SDL_GetWindowSize(window, &w, &h);
    SDL_GL_GetDrawableSize(window, &w2, &h2);
    SetNewSize(VideoMode(w, h), Extent(w2, h2));
}

static VideoMode getDesktopSize(SDL_Window* window, VideoMode fallback)
{
    const int display = window ? std::max(0, SDL_GetWindowDisplayIndex(window)) : 0;
    SDL_DisplayMode dskSize;
    if(CHECK_SDL(SDL_GetDesktopDisplayMode(display, &dskSize)))
        return VideoMode(dskSize.w, dskSize.h);
    return fallback;
}

bool VideoSDL2::CreateScreen(const std::string& title, const VideoMode size, DisplayMode displayMode)
{
    if(!initialized)
        return false;

    // GL-Attributes
    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, RTTR_OGL_MAJOR));
    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, RTTR_OGL_MINOR));
    SDL_GLprofile profile;
    if(RTTR_OGL_ES || RTTR_OGL_GL4ES)
        profile = SDL_GL_CONTEXT_PROFILE_ES;
    else if(RTTR_OGL_COMPAT)
        profile = SDL_GL_CONTEXT_PROFILE_COMPATIBILITY;
    else
        profile = SDL_GL_CONTEXT_PROFILE_CORE;

    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, profile));

    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8));
    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8));
    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8));
    CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1));

    const int wndPos = SDL_WINDOWPOS_CENTERED;
    const unsigned commonFlags = SDL_WINDOW_OPENGL;
    // TODO: Fix GUI scaling with High DPI support enabled.
    // See https://github.com/Return-To-The-Roots/s25client/issues/1621
    // commonFlags |= SDL_WINDOW_ALLOW_HIGHDPI;

    unsigned windowTypeFlag = 0;
    auto requestedSize = size;
    if(displayMode == DisplayMode::Fullscreen)
    {
        windowTypeFlag = SDL_WINDOW_FULLSCREEN;
        requestedSize = FindClosestVideoMode(size);
    } else if(displayMode == DisplayMode::BorderlessWindow)
    {
        windowTypeFlag = SDL_WINDOW_BORDERLESS;
        requestedSize = getDesktopSize(nullptr, size);
    } else if(displayMode.resizeable)
        windowTypeFlag = SDL_WINDOW_RESIZABLE;

    window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,
                              commonFlags | windowTypeFlag);

    if(!window)
    {
        PrintError();
        // Fallback to borderless fullscreen if unable to set resolution
        if(displayMode == DisplayMode::Fullscreen)
            return CreateScreen(title, size, DisplayMode::BorderlessWindow);
        // No borderless -> Resizable window as last fallback to at least show something
        if(displayMode == DisplayMode::BorderlessWindow)
            return CreateScreen(title, size, DisplayMode::Windowed);
        PrintError();
        return false;
    }

    UpdateCurrentDisplayMode();
    UpdateCurrentSizes();

    if(displayMode != DisplayMode::Fullscreen)
        MoveWindowToCenter();

    SDL_Surface* iconSurf =
      SDL_CreateRGBSurfaceFrom(image.data(), 48, 48, 32, 48 * 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
    if(iconSurf)
    {
        SDL_SetWindowIcon(window, iconSurf);
        SDL_FreeSurface(iconSurf);
    } else
        PrintError();

    context = SDL_GL_CreateContext(window);

#ifdef _WIN32
    SetWindowTextW(GetConsoleWindow(), boost::nowide::widen(title).c_str());
#endif

    std::fill(keyboard.begin(), keyboard.end(), false);

    SDL_ShowCursor(0);

    return true;
}

bool VideoSDL2::ResizeScreen(VideoMode newSize, DisplayMode displayMode)
{
    if(!initialized)
        return false;

    bool centerWindow = false;

    if(displayMode_ != displayMode)
    {
        if(displayMode_ == DisplayMode::Fullscreen || displayMode == DisplayMode::Fullscreen)
        {
            if(!CHECK_SDL(
                 SDL_SetWindowFullscreen(window, (displayMode == DisplayMode::Fullscreen) ? SDL_WINDOW_FULLSCREEN : 0)))
            {
                if(displayMode == DisplayMode::Fullscreen)
                    displayMode = DisplayMode::BorderlessWindow;
            }
        }
        SDL_SetWindowResizable(window,
                               static_cast<SDL_bool>(displayMode == DisplayMode::Windowed && displayMode.resizeable));
        SDL_SetWindowBordered(window, static_cast<SDL_bool>(displayMode == DisplayMode::Windowed));

        UpdateCurrentDisplayMode();
        centerWindow = true;
    }
    if(displayMode_ == DisplayMode::BorderlessWindow)
        newSize = getDesktopSize(nullptr, newSize);
    if(newSize != GetWindowSize())
    {
        if(displayMode_ == DisplayMode::Fullscreen)
        {
            auto const targetMode = FindClosestVideoMode(newSize);
            SDL_DisplayMode target;
            target.w = targetMode.width;
            target.h = targetMode.height;
            target.format = 0;       // don't care
            target.refresh_rate = 0; // don't care
            target.driverdata = nullptr;
            // Explicitly change the window size to avoid a bug with SDL reporting the wrong size until alt+tab
            SDL_SetWindowSize(window, target.w, target.h);
            if(!CHECK_SDL(SDL_SetWindowDisplayMode(window, &target)))
                return false;
        } else
        {
            SDL_SetWindowSize(window, newSize.width, newSize.height);
            centerWindow = true;
        }
        UpdateCurrentSizes();
    }
    if(centerWindow)
        MoveWindowToCenter();

    return true;
}

void VideoSDL2::PrintError()
{
    PrintError(SDL_GetError());
}

void VideoSDL2::PrintError(const std::string& msg)
{
    boost::nowide::cerr << msg << std::endl;
}

void VideoSDL2::ShowErrorMessage(const std::string& title, const std::string& message)
{
    // window==nullptr is okay too ("no parent")
#ifdef __linux__
    // When using window, SDL will try to use a system tool like "zenity" which isn't always installed on every distro
    // so rttr will crash. But without a window it will use an x11 backend that should be available on x11 AND wayland
    // for compatibility reasons
    SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), nullptr);
#else
    SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), window);
#endif
}

void VideoSDL2::HandlePaste()
{
    if(!SDL_HasClipboardText())
        return;

    SDL_memory<char> text(SDL_GetClipboardText());
    if(!text || *text == '\0') // empty string indicates error
        PrintError(text ? SDL_GetError() : "Paste failed.");

    for(const char32_t c : s25util::utf8to32(text.get()))
        CallBack->Msg_KeyDown(KeyEvent(c));
}

void VideoSDL2::DestroyScreen()
{
    CleanUp();
}

bool VideoSDL2::SwapBuffers()
{
    SDL_GL_SwapWindow(window);
    return true;
}

bool VideoSDL2::MessageLoop()
{
    SDL_Event ev;
    while(SDL_PollEvent(&ev))
    {
        switch(ev.type)
        {
            default: break;

            case SDL_QUIT: return false;
            case SDL_WINDOWEVENT:
            {
                switch(ev.window.event)
                {
                    case SDL_WINDOWEVENT_RESIZED:
                    {
                        UpdateCurrentDisplayMode();
                        VideoMode newSize(ev.window.data1, ev.window.data2);
                        if(newSize != GetWindowSize())
                        {
                            UpdateCurrentSizes();
                            CallBack->WindowResized();
                        }
                    }
                    break;
                }
            }
            break;

            case SDL_KEYDOWN:
            {
                KeyEvent ke;

                switch(ev.key.keysym.sym)
                {
                    default:
                    {
                        // Die 12 F-Tasten
                        if(ev.key.keysym.sym >= SDLK_F1 && ev.key.keysym.sym <= SDLK_F12)
                            ke.kt = static_cast<KeyType>(rttr::enum_cast(KeyType::F1) + ev.key.keysym.sym - SDLK_F1);
                    }
                    break;
                    case SDLK_RETURN: ke.kt = KeyType::Return; break;
                    case SDLK_SPACE: ke.kt = KeyType::Space; break;
                    case SDLK_LEFT: ke.kt = KeyType::Left; break;
                    case SDLK_RIGHT: ke.kt = KeyType::Right; break;
                    case SDLK_UP: ke.kt = KeyType::Up; break;
                    case SDLK_DOWN: ke.kt = KeyType::Down; break;
                    case SDLK_BACKSPACE: ke.kt = KeyType::Backspace; break;
                    case SDLK_DELETE: ke.kt = KeyType::Delete; break;
                    case SDLK_LSHIFT:
                    case SDLK_RSHIFT: ke.kt = KeyType::Shift; break;
                    case SDLK_TAB: ke.kt = KeyType::Tab; break;
                    case SDLK_HOME: ke.kt = KeyType::Home; break;
                    case SDLK_END: ke.kt = KeyType::End; break;
                    case SDLK_ESCAPE: ke.kt = KeyType::Escape; break;
                    case SDLK_PRINTSCREEN: ke.kt = KeyType::Print; break;
                    // case SDLK_BACKQUOTE: ev.key.keysym.scancode = '^'; break;
                    case SDLK_v:
                        if(SDL_GetModState() & KMOD_CTRL)
                        {
                            HandlePaste();
                            continue;
                        }
                        break;
                }

                setSpecialKeys(ke, SDL_Keymod(ev.key.keysym.mod));

                if(ke.kt != KeyType::Invalid)
                    CallBack->Msg_KeyDown(ke);
                else if(ke.alt || ke.ctrl)
                {
                    // Handle shortcuts (CTRL+x, ALT+y)
                    // but not possible combinations (ALT+0054)
                    const SDL_Keycode keycode = ev.key.keysym.sym;
                    if(keycode >= 'a' && keycode <= 'z')
                    {
                        ke.kt = KeyType::Char;
                        ke.c = static_cast<char32_t>(keycode);
                        CallBack->Msg_KeyDown(ke);
                    }
                }
            }
            break;
            case SDL_TEXTINPUT:
            {
                const std::u32string text = s25util::utf8to32(ev.text.text);
                KeyEvent ke(0);
                setSpecialKeys(ke);
                for(char32_t c : text)
                {
                    ke.c = c;
                    CallBack->Msg_KeyDown(ke);
                }
                break;
            }
            case SDL_MOUSEBUTTONDOWN:
                mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));

                switch(ev.button.button)
                {
                    case SDL_BUTTON_LEFT:
                        mouse_xy.ldown = true;
                        CallBack->Msg_LeftDown(mouse_xy);
                        break;

                    case SDL_BUTTON_RIGHT:
                        mouse_xy.rdown = true;
                        CallBack->Msg_RightDown(mouse_xy);
                        break;

                    case SDL_BUTTON_MIDDLE:
                        mouse_xy.mdown = true;
                        CallBack->Msg_MiddleDown(mouse_xy);
                        break;
                }
                break;
            case SDL_MOUSEBUTTONUP:
                mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));

                switch(ev.button.button)
                {
                    case SDL_BUTTON_LEFT:
                        mouse_xy.ldown = false;
                        CallBack->Msg_LeftUp(mouse_xy);
                        break;

                    case SDL_BUTTON_RIGHT:
                        mouse_xy.rdown = false;
                        CallBack->Msg_RightUp(mouse_xy);
                        break;

                    case SDL_BUTTON_MIDDLE:
                        mouse_xy.mdown = false;
                        CallBack->Msg_MiddleUp(mouse_xy);
                        break;
                }
                break;
            case SDL_MOUSEWHEEL:
            {
                int y = ev.wheel.y;
                if(ev.wheel.direction == SDL_MOUSEWHEEL_FLIPPED)
                    y = -y;
                if(y > 0)
                    CallBack->Msg_WheelUp(mouse_xy);
                else if(y < 0)
                    CallBack->Msg_WheelDown(mouse_xy);
            }
            break;
            case SDL_MOUSEMOTION:
            {
                const auto newPos = getGuiScale().screenToView(Position(ev.motion.x, ev.motion.y));
                // Avoid duplicate events especially when warping the mouse
                if(newPos != mouse_xy.pos)
                {
                    mouse_xy.pos = newPos;
                    CallBack->Msg_MouseMove(mouse_xy);
                }
            }
            break;
            case SDL_FINGERDOWN:
            {
                VideoMode wnSize = GetWindowSize();
                mouse_xy.pos = getGuiScale().screenToView(Position(static_cast<int>(ev.tfinger.x * wnSize.width),
                                                                   static_cast<int>(ev.tfinger.y * wnSize.height)));
                mouse_xy.ldown = true;
                mouse_xy.num_tfingers++;
                CallBack->Msg_LeftDown(mouse_xy);
                break;
            }
            case SDL_FINGERUP:
            {
                VideoMode wnSize = GetWindowSize();
                mouse_xy.pos = getGuiScale().screenToView(Position(static_cast<int>(ev.tfinger.x * wnSize.width),
                                                                   static_cast<int>(ev.tfinger.y * wnSize.height)));
                mouse_xy.ldown = false;
                CallBack->Msg_LeftUp(mouse_xy);
                mouse_xy.num_tfingers--; // Dirty way to count leftUp as touch event without extra isTouch bool
                break;
            }
            case SDL_FINGERMOTION:
            {
                VideoMode wnSize = GetWindowSize();
                const auto newPos = getGuiScale().screenToView(Position(
                  static_cast<int>(ev.tfinger.x * wnSize.width), static_cast<int>(ev.tfinger.y * wnSize.height)));

                if(newPos != mouse_xy.pos)
                {
                    mouse_xy.pos = newPos;
                    CallBack->Msg_MouseMove(mouse_xy);
                }
                break;
            }
            case SDL_MULTIGESTURE:
            {
                if(std::fabs(ev.mgesture.dDist) > 0.001)
                {
                    if(ev.mgesture.dDist > 0)
                        CallBack->Msg_WheelUp(mouse_xy);
                    else
                        CallBack->Msg_WheelDown(mouse_xy);
                }
                break;
            }
        }
    }

    return true;
}

unsigned long VideoSDL2::GetTickCount() const
{
    return SDL_GetTicks();
}

std::vector<VideoMode> VideoSDL2::ListVideoModes() const
{
    int display = SDL_GetWindowDisplayIndex(window);
    if(display < 0)
        display = 0;
    std::vector<VideoMode> video_modes;
    for(int i = SDL_GetNumDisplayModes(display) - 1; i >= 0; --i)
    {
        SDL_DisplayMode mode;
        if(SDL_GetDisplayMode(display, i, &mode) != 0)
            PrintError();
        else
        {
            VideoMode vm(mode.w, mode.h);
            if(!helpers::contains(video_modes, vm))
                video_modes.push_back(vm);
        }
    }
    return video_modes;
}

OpenGL_Loader_Proc VideoSDL2::GetLoaderFunction() const
{
#if RTTR_OGL_GL4ES
    return gl4es_GetProcAddress;
#else
    return SDL_GL_GetProcAddress;
#endif
}

void VideoSDL2::SetMousePos(Position pos)
{
    const auto screenPos = getGuiScale().viewToScreen(pos);
    mouse_xy.pos = pos;
    SDL_WarpMouseInWindow(window, screenPos.x, screenPos.y);
}

KeyEvent VideoSDL2::GetModKeyState() const
{
    KeyEvent ke;
    setSpecialKeys(ke);
    return ke;
}

void* VideoSDL2::GetMapPointer() const
{
#ifdef WIN32
    SDL_SysWMinfo wmInfo;
    SDL_VERSION(&wmInfo.version);
    SDL_GetWindowWMInfo(window, &wmInfo);
    // return (void*)wmInfo.info.win.window;
    return (void*)wmInfo.info.win.window;
#else
    return nullptr;
#endif
}

void VideoSDL2::MoveWindowToCenter()
{
    SDL_PumpEvents(); // Let window system run update events/initialization
    const int display = window ? std::max(0, SDL_GetWindowDisplayIndex(window)) : 0;

    SDL_Rect usableBounds;
    CHECK_SDL(SDL_GetDisplayUsableBounds(display, &usableBounds));
    int top, left, bottom, right;
    if(!CHECK_SDL(SDL_GetWindowBordersSize(window, &top, &left, &bottom, &right)))
        top = left = bottom = right = 0;
    auto wndOuterSize = GetWindowSize();
    wndOuterSize.width += left + right;
    wndOuterSize.height += top + bottom;
    if(usableBounds.w < wndOuterSize.width || usableBounds.h < wndOuterSize.height)
    {
        SDL_SetWindowSize(window, usableBounds.w - left - right, usableBounds.h - top - bottom);
        UpdateCurrentSizes();
        wndOuterSize.width = usableBounds.w;
        wndOuterSize.height = usableBounds.h;
    }
    const int x = usableBounds.x + (usableBounds.w - wndOuterSize.width) / 2 + left;
    const int y = usableBounds.y + (usableBounds.h - wndOuterSize.height) / 2 + top;
    SDL_SetWindowPosition(window, x, y);
}

void VideoSDL2::UpdateCurrentDisplayMode()
{
    RTTR_Assert(window);
    const auto flags = SDL_GetWindowFlags(window);
    if(flags & SDL_WINDOW_FULLSCREEN)
        displayMode_ = DisplayMode::Fullscreen;
    else if((flags & SDL_WINDOW_BORDERLESS) != 0)
        displayMode_ = DisplayMode::BorderlessWindow;
    else
        displayMode_ = DisplayMode::Windowed;
    displayMode_.resizeable = (flags & SDL_WINDOW_RESIZABLE) != 0;
}

1	// Copyright (C) 2005 - 2026 Settlers Freaks (sf-team at siedler25.org)
2	//
3	// SPDX-License-Identifier: GPL-2.0-or-later
4
5	#include "VideoSDL2.h"
6	#include "RTTR_Assert.h"
7	#include "driver/Interface.h"
8	#include "driver/VideoDriverLoaderInterface.h"
9	#include "driver/VideoInterface.h"
10	#include "enum_cast.hpp"
11	#include "helpers/LSANUtils.h"
12	#include "helpers/containerUtils.h"
13	#include "icon.h"
14	#include "openglCfg.hpp"
15	#include <s25util/utf8.h>
16	#include <boost/nowide/iostream.hpp>
17	#include <SDL.h>
18	#include <SDL_hints.h>
19	#include <SDL_video.h>
20	#include <algorithm>
21	#include <memory>
22
23	#ifdef _WIN32
24	# include <boost/nowide/convert.hpp>
25	# ifndef WIN32_LEAN_AND_MEAN
26	# define WIN32_LEAN_AND_MEAN
27	# endif
28	# include <windows.h> // Avoid "Windows headers require the default packing option" due to SDL2
29	# include <SDL_syswm.h>
30	#endif // _WIN32
31	#if RTTR_OGL_GL4ES
32	# include <gl4esinit.h>
33	#endif
34
35	namespace {
36
37	/// Check that the (SDL) call returns success or print the error
38	/// Can be used in conditions: if(CHECK_SDL(SDL_Foo()))
39	bool CHECK_SDL(int sdlResult)	1✔
40	{
41	if(sdlResult >= 0)	1✔
42	return true;	1✔
NEW 43	VideoSDL2::PrintError();	×
NEW 44	return false;	×
45	}
46
47	template<typename T>
48	struct SDLMemoryDeleter
49	{
50	void operator()(T* p) const { SDL_free(p); }	×
51	};
52
53	template<typename T>
54	using SDL_memory = std::unique_ptr<T, SDLMemoryDeleter<T>>;
55
56	void setSpecialKeys(KeyEvent& ke, const SDL_Keymod mod)	×
57	{
58	ke.ctrl = (mod & KMOD_CTRL);	×
59	ke.shift = (mod & KMOD_SHIFT);	×
60	ke.alt = (mod & KMOD_ALT);	×
61	}	×
62	void setSpecialKeys(KeyEvent& ke)	×
63	{
64	setSpecialKeys(ke, SDL_GetModState());	×
65	}	×
66	} // namespace
67
68	IVideoDriver* CreateVideoInstance(VideoDriverLoaderInterface* CallBack)	1✔
69	{
70	return new VideoSDL2(CallBack);	1✔
71	}
72
73	void FreeVideoInstance(IVideoDriver* driver)	1✔
74	{
75	delete driver;	1✔
76	}	1✔
77
78	const char* GetDriverName()	5✔
79	{
80	#if RTTR_OGL_GL4ES
81	return "(SDL2) OpenGL-ES gl4es via SDL2-Library";
82	#else
83	return "(SDL2) OpenGL via SDL2-Library";	5✔
84	#endif
85	}
86
87	VideoSDL2::VideoSDL2(VideoDriverLoaderInterface* CallBack) : VideoDriver(CallBack), window(nullptr), context(nullptr) {}	1✔
88
89	VideoSDL2::~VideoSDL2()	2✔
90	{
91	CleanUp();	1✔
92	}	2✔
93
94	const char* VideoSDL2::GetName() const	2✔
95	{
96	return GetDriverName();	2✔
97	}
98
99	bool VideoSDL2::Initialize()	1✔
100	{
101	initialized = false;	1✔
102	rttr::ScopedLeakDisabler _;	1✔
103	// Do not emulate mouse events using touch
104	SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");	1✔
105	if(CHECK_SDL(SDL_InitSubSystem(SDL_INIT_VIDEO)))	1✔
106	initialized = true;	1✔
107
108	return initialized;	1✔
109	}
110
111	void VideoSDL2::CleanUp()	1✔
112	{
113	if(!initialized)	1✔
114	return;	×
115
116	if(context)	1✔
117	SDL_GL_DeleteContext(context);	×
118	if(window)	1✔
119	SDL_DestroyWindow(window);	×
120	SDL_QuitSubSystem(SDL_INIT_VIDEO);	1✔
121	SDL_Quit();	1✔
122	initialized = false;	1✔
123	}
124
125	void VideoSDL2::UpdateCurrentSizes()	×
126	{
127	int w, h, w2, h2;
128	SDL_GetWindowSize(window, &w, &h);	×
129	SDL_GL_GetDrawableSize(window, &w2, &h2);	×
130	SetNewSize(VideoMode(w, h), Extent(w2, h2));	×
131	}	×
132
NEW 133	static VideoMode getDesktopSize(SDL_Window* window, VideoMode fallback)	×
134	{
NEW 135	const int display = window ? std::max(0, SDL_GetWindowDisplayIndex(window)) : 0;	×
136	SDL_DisplayMode dskSize;
NEW 137	if(CHECK_SDL(SDL_GetDesktopDisplayMode(display, &dskSize)))	×
NEW 138	return VideoMode(dskSize.w, dskSize.h);	×
NEW 139	return fallback;	×
140	}
141
NEW 142	bool VideoSDL2::CreateScreen(const std::string& title, const VideoMode size, DisplayMode displayMode)	×
143	{
144	if(!initialized)	×
145	return false;	×
146
147	// GL-Attributes
148	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, RTTR_OGL_MAJOR));	×
149	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, RTTR_OGL_MINOR));	×
150	SDL_GLprofile profile;
151	if(RTTR_OGL_ES \|\| RTTR_OGL_GL4ES)
152	profile = SDL_GL_CONTEXT_PROFILE_ES;
153	else if(RTTR_OGL_COMPAT)
154	profile = SDL_GL_CONTEXT_PROFILE_COMPATIBILITY;	×
155	else
156	profile = SDL_GL_CONTEXT_PROFILE_CORE;
157
158	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, profile));	×
159
160	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8));	×
161	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8));	×
162	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8));	×
163	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1));	×
164
NEW 165	const int wndPos = SDL_WINDOWPOS_CENTERED;	×
NEW 166	const unsigned commonFlags = SDL_WINDOW_OPENGL;	×
167	// TODO: Fix GUI scaling with High DPI support enabled.
168	// See https://github.com/Return-To-The-Roots/s25client/issues/1621
169	// commonFlags \|= SDL_WINDOW_ALLOW_HIGHDPI;
170
NEW 171	unsigned windowTypeFlag = 0;	×
NEW 172	auto requestedSize = size;	×
NEW 173	if(displayMode == DisplayMode::Fullscreen)	×
174	{
NEW 175	windowTypeFlag = SDL_WINDOW_FULLSCREEN;	×
NEW 176	requestedSize = FindClosestVideoMode(size);	×
NEW 177	} else if(displayMode == DisplayMode::BorderlessWindow)	×
178	{
NEW 179	windowTypeFlag = SDL_WINDOW_BORDERLESS;	×
NEW 180	requestedSize = getDesktopSize(nullptr, size);	×
NEW 181	} else if(displayMode.resizeable)	×
NEW 182	windowTypeFlag = SDL_WINDOW_RESIZABLE;	×
183
NEW 184	window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,	×
185	commonFlags \| windowTypeFlag);
186
187	if(!window)	×
188	{
NEW 189	PrintError();	×
190	// Fallback to borderless fullscreen if unable to set resolution
NEW 191	if(displayMode == DisplayMode::Fullscreen)	×
NEW 192	return CreateScreen(title, size, DisplayMode::BorderlessWindow);	×
193	// No borderless -> Resizable window as last fallback to at least show something
NEW 194	if(displayMode == DisplayMode::BorderlessWindow)	×
NEW 195	return CreateScreen(title, size, DisplayMode::Windowed);	×
NEW 196	PrintError();	×
UNCOV 197	return false;	×
198	}
199
NEW 200	UpdateCurrentDisplayMode();	×
201	UpdateCurrentSizes();	×
202
NEW 203	if(displayMode != DisplayMode::Fullscreen)	×
204	MoveWindowToCenter();	×
205
206	SDL_Surface* iconSurf =
207	SDL_CreateRGBSurfaceFrom(image.data(), 48, 48, 32, 48 * 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);	×
208	if(iconSurf)	×
209	{
210	SDL_SetWindowIcon(window, iconSurf);	×
211	SDL_FreeSurface(iconSurf);	×
212	} else
NEW 213	PrintError();	×
214
215	context = SDL_GL_CreateContext(window);	×
216
217	#ifdef _WIN32
218	SetWindowTextW(GetConsoleWindow(), boost::nowide::widen(title).c_str());
219	#endif
220
221	std::fill(keyboard.begin(), keyboard.end(), false);	×
222
223	SDL_ShowCursor(0);	×
224
225	return true;	×
226	}
227
NEW 228	bool VideoSDL2::ResizeScreen(VideoMode newSize, DisplayMode displayMode)	×
229	{
230	if(!initialized)	×
231	return false;	×
232
NEW 233	bool centerWindow = false;	×
234
NEW 235	if(displayMode_ != displayMode)	×
236	{
NEW 237	if(displayMode_ == DisplayMode::Fullscreen \|\| displayMode == DisplayMode::Fullscreen)	×
238	{
NEW 239	if(!CHECK_SDL(	×
NEW 240	SDL_SetWindowFullscreen(window, (displayMode == DisplayMode::Fullscreen) ? SDL_WINDOW_FULLSCREEN : 0)))	×
241	{
NEW 242	if(displayMode == DisplayMode::Fullscreen)	×
NEW 243	displayMode = DisplayMode::BorderlessWindow;	×
244	}
245	}
NEW 246	SDL_SetWindowResizable(window,	×
NEW 247	static_cast<SDL_bool>(displayMode == DisplayMode::Windowed && displayMode.resizeable));	×
NEW 248	SDL_SetWindowBordered(window, static_cast<SDL_bool>(displayMode == DisplayMode::Windowed));	×
249
NEW 250	UpdateCurrentDisplayMode();	×
NEW 251	centerWindow = true;	×
252	}
NEW 253	if(displayMode_ == DisplayMode::BorderlessWindow)	×
NEW 254	newSize = getDesktopSize(nullptr, newSize);	×
UNCOV 255	if(newSize != GetWindowSize())	×
256	{
NEW 257	if(displayMode_ == DisplayMode::Fullscreen)	×
258	{
259	auto const targetMode = FindClosestVideoMode(newSize);	×
260	SDL_DisplayMode target;
261	target.w = targetMode.width;	×
262	target.h = targetMode.height;	×
NEW 263	target.format = 0; // don't care	×
NEW 264	target.refresh_rate = 0; // don't care	×
NEW 265	target.driverdata = nullptr;	×
266	// Explicitly change the window size to avoid a bug with SDL reporting the wrong size until alt+tab
267	SDL_SetWindowSize(window, target.w, target.h);	×
NEW 268	if(!CHECK_SDL(SDL_SetWindowDisplayMode(window, &target)))	×
UNCOV 269	return false;	×
270	} else
271	{
272	SDL_SetWindowSize(window, newSize.width, newSize.height);	×
NEW 273	centerWindow = true;	×
274	}
275	UpdateCurrentSizes();	×
276	}
NEW 277	if(centerWindow)	×
NEW 278	MoveWindowToCenter();	×
279
UNCOV 280	return true;	×
281	}
282
NEW 283	void VideoSDL2::PrintError()	×
284	{
NEW 285	PrintError(SDL_GetError());	×
NEW 286	}	×
287
NEW 288	void VideoSDL2::PrintError(const std::string& msg)	×
289	{
290	boost::nowide::cerr << msg << std::endl;	×
291	}	×
292
293	void VideoSDL2::ShowErrorMessage(const std::string& title, const std::string& message)	×
294	{
295	// window==nullptr is okay too ("no parent")
296	#ifdef __linux__
297	// When using window, SDL will try to use a system tool like "zenity" which isn't always installed on every distro
298	// so rttr will crash. But without a window it will use an x11 backend that should be available on x11 AND wayland
299	// for compatibility reasons
300	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), nullptr);	×
301	#else
302	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), window);
303	#endif
304	}	×
305
306	void VideoSDL2::HandlePaste()	×
307	{
308	if(!SDL_HasClipboardText())	×
309	return;	×
310
311	SDL_memory<char> text(SDL_GetClipboardText());	×
312	if(!text \|\| *text == '\0') // empty string indicates error	×
313	PrintError(text ? SDL_GetError() : "Paste failed.");	×
314
315	for(const char32_t c : s25util::utf8to32(text.get()))	×
316	CallBack->Msg_KeyDown(KeyEvent(c));	×
317	}
318
319	void VideoSDL2::DestroyScreen()	×
320	{
321	CleanUp();	×
322	}	×
323
324	bool VideoSDL2::SwapBuffers()	×
325	{
326	SDL_GL_SwapWindow(window);	×
327	return true;	×
328	}
329
330	bool VideoSDL2::MessageLoop()	×
331	{
332	SDL_Event ev;
333	while(SDL_PollEvent(&ev))	×
334	{
335	switch(ev.type)	×
336	{
337	default: break;	×
338
339	case SDL_QUIT: return false;	×
340	case SDL_WINDOWEVENT:	×
341	{
342	switch(ev.window.event)	×
343	{
344	case SDL_WINDOWEVENT_RESIZED:	×
345	{
NEW 346	UpdateCurrentDisplayMode();	×
347	VideoMode newSize(ev.window.data1, ev.window.data2);	×
348	if(newSize != GetWindowSize())	×
349	{
350	UpdateCurrentSizes();	×
351	CallBack->WindowResized();	×
352	}
353	}
354	break;	×
355	}
356	}
357	break;	×
358
359	case SDL_KEYDOWN:	×
360	{
361	KeyEvent ke;	×
362
363	switch(ev.key.keysym.sym)	×
364	{
365	default:	×
366	{
367	// Die 12 F-Tasten
368	if(ev.key.keysym.sym >= SDLK_F1 && ev.key.keysym.sym <= SDLK_F12)	×
369	ke.kt = static_cast<KeyType>(rttr::enum_cast(KeyType::F1) + ev.key.keysym.sym - SDLK_F1);	×
370	}
371	break;	×
372	case SDLK_RETURN: ke.kt = KeyType::Return; break;	×
373	case SDLK_SPACE: ke.kt = KeyType::Space; break;	×
374	case SDLK_LEFT: ke.kt = KeyType::Left; break;	×
375	case SDLK_RIGHT: ke.kt = KeyType::Right; break;	×
376	case SDLK_UP: ke.kt = KeyType::Up; break;	×
377	case SDLK_DOWN: ke.kt = KeyType::Down; break;	×
378	case SDLK_BACKSPACE: ke.kt = KeyType::Backspace; break;	×
379	case SDLK_DELETE: ke.kt = KeyType::Delete; break;	×
380	case SDLK_LSHIFT:	×
381	case SDLK_RSHIFT: ke.kt = KeyType::Shift; break;	×
382	case SDLK_TAB: ke.kt = KeyType::Tab; break;	×
383	case SDLK_HOME: ke.kt = KeyType::Home; break;	×
384	case SDLK_END: ke.kt = KeyType::End; break;	×
385	case SDLK_ESCAPE: ke.kt = KeyType::Escape; break;	×
386	case SDLK_PRINTSCREEN: ke.kt = KeyType::Print; break;	×
387	// case SDLK_BACKQUOTE: ev.key.keysym.scancode = '^'; break;
388	case SDLK_v:	×
389	if(SDL_GetModState() & KMOD_CTRL)	×
390	{
391	HandlePaste();	×
392	continue;	×
393	}
394	break;	×
395	}
396
397	setSpecialKeys(ke, SDL_Keymod(ev.key.keysym.mod));	×
398
399	if(ke.kt != KeyType::Invalid)	×
400	CallBack->Msg_KeyDown(ke);	×
401	else if(ke.alt \|\| ke.ctrl)	×
402	{
403	// Handle shortcuts (CTRL+x, ALT+y)
404	// but not possible combinations (ALT+0054)
405	const SDL_Keycode keycode = ev.key.keysym.sym;	×
406	if(keycode >= 'a' && keycode <= 'z')	×
407	{
408	ke.kt = KeyType::Char;	×
409	ke.c = static_cast<char32_t>(keycode);	×
410	CallBack->Msg_KeyDown(ke);	×
411	}
412	}
413	}
414	break;	×
415	case SDL_TEXTINPUT:	×
416	{
417	const std::u32string text = s25util::utf8to32(ev.text.text);	×
418	KeyEvent ke(0);	×
419	setSpecialKeys(ke);	×
420	for(char32_t c : text)	×
421	{
422	ke.c = c;	×
423	CallBack->Msg_KeyDown(ke);	×
424	}
425	break;	×
426	}
427	case SDL_MOUSEBUTTONDOWN:	×
428	mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));	×
429
430	switch(ev.button.button)	×
431	{
432	case SDL_BUTTON_LEFT:	×
433	mouse_xy.ldown = true;	×
434	CallBack->Msg_LeftDown(mouse_xy);	×
435	break;	×
436
437	case SDL_BUTTON_RIGHT:	×
438	mouse_xy.rdown = true;	×
439	CallBack->Msg_RightDown(mouse_xy);	×
440	break;	×
441
442	case SDL_BUTTON_MIDDLE:	×
443	mouse_xy.mdown = true;	×
444	CallBack->Msg_MiddleDown(mouse_xy);	×
445	break;	×
446	}
447	break;	×
448	case SDL_MOUSEBUTTONUP:	×
449	mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));	×
450
451	switch(ev.button.button)	×
452	{
453	case SDL_BUTTON_LEFT:	×
454	mouse_xy.ldown = false;	×
455	CallBack->Msg_LeftUp(mouse_xy);	×
456	break;	×
457
458	case SDL_BUTTON_RIGHT:	×
459	mouse_xy.rdown = false;	×
460	CallBack->Msg_RightUp(mouse_xy);	×
461	break;	×
462
463	case SDL_BUTTON_MIDDLE:	×
464	mouse_xy.mdown = false;	×
465	CallBack->Msg_MiddleUp(mouse_xy);	×
466	break;	×
467	}
468	break;	×
469	case SDL_MOUSEWHEEL:	×
470	{
471	int y = ev.wheel.y;	×
472	if(ev.wheel.direction == SDL_MOUSEWHEEL_FLIPPED)	×
473	y = -y;	×
474	if(y > 0)	×
475	CallBack->Msg_WheelUp(mouse_xy);	×
476	else if(y < 0)	×
477	CallBack->Msg_WheelDown(mouse_xy);	×
478	}
479	break;	×
480	case SDL_MOUSEMOTION:	×
481	{
482	const auto newPos = getGuiScale().screenToView(Position(ev.motion.x, ev.motion.y));	×
483	// Avoid duplicate events especially when warping the mouse
484	if(newPos != mouse_xy.pos)	×
485	{
486	mouse_xy.pos = newPos;	×
487	CallBack->Msg_MouseMove(mouse_xy);	×
488	}
489	}
490	break;	×
491	case SDL_FINGERDOWN:	×
492	{
493	VideoMode wnSize = GetWindowSize();	×
494	mouse_xy.pos = getGuiScale().screenToView(Position(static_cast<int>(ev.tfinger.x * wnSize.width),	×
495	static_cast<int>(ev.tfinger.y * wnSize.height)));	×
496	mouse_xy.ldown = true;	×
497	mouse_xy.num_tfingers++;	×
498	CallBack->Msg_LeftDown(mouse_xy);	×
499	break;	×
500	}
501	case SDL_FINGERUP:	×
502	{
503	VideoMode wnSize = GetWindowSize();	×
504	mouse_xy.pos = getGuiScale().screenToView(Position(static_cast<int>(ev.tfinger.x * wnSize.width),	×
505	static_cast<int>(ev.tfinger.y * wnSize.height)));	×
506	mouse_xy.ldown = false;	×
507	CallBack->Msg_LeftUp(mouse_xy);	×
508	mouse_xy.num_tfingers--; // Dirty way to count leftUp as touch event without extra isTouch bool	×
509	break;	×
510	}
511	case SDL_FINGERMOTION:	×
512	{
513	VideoMode wnSize = GetWindowSize();	×
514	const auto newPos = getGuiScale().screenToView(Position(	×
515	static_cast<int>(ev.tfinger.x * wnSize.width), static_cast<int>(ev.tfinger.y * wnSize.height)));	×
516
517	if(newPos != mouse_xy.pos)	×
518	{
519	mouse_xy.pos = newPos;	×
520	CallBack->Msg_MouseMove(mouse_xy);	×
521	}
522	break;	×
523	}
524	case SDL_MULTIGESTURE:	×
525	{
526	if(std::fabs(ev.mgesture.dDist) > 0.001)	×
527	{
528	if(ev.mgesture.dDist > 0)	×
529	CallBack->Msg_WheelUp(mouse_xy);	×
530	else
531	CallBack->Msg_WheelDown(mouse_xy);	×
532	}
533	break;	×
534	}
535	}
536	}
537
538	return true;	×
539	}
540
541	unsigned long VideoSDL2::GetTickCount() const	×
542	{
543	return SDL_GetTicks();	×
544	}
545
NEW 546	std::vector<VideoMode> VideoSDL2::ListVideoModes() const	×
547	{
548	int display = SDL_GetWindowDisplayIndex(window);	×
549	if(display < 0)	×
550	display = 0;	×
NEW 551	std::vector<VideoMode> video_modes;	×
UNCOV 552	for(int i = SDL_GetNumDisplayModes(display) - 1; i >= 0; --i)	×
553	{
554	SDL_DisplayMode mode;
555	if(SDL_GetDisplayMode(display, i, &mode) != 0)	×
NEW 556	PrintError();	×
557	else
558	{
559	VideoMode vm(mode.w, mode.h);	×
560	if(!helpers::contains(video_modes, vm))	×
561	video_modes.push_back(vm);	×
562	}
563	}
NEW 564	return video_modes;	×
565	}
566
567	OpenGL_Loader_Proc VideoSDL2::GetLoaderFunction() const	×
568	{
569	#if RTTR_OGL_GL4ES
570	return gl4es_GetProcAddress;
571	#else
572	return SDL_GL_GetProcAddress;	×
573	#endif
574	}
575
576	void VideoSDL2::SetMousePos(Position pos)	×
577	{
578	const auto screenPos = getGuiScale().viewToScreen(pos);	×
579	mouse_xy.pos = pos;	×
580	SDL_WarpMouseInWindow(window, screenPos.x, screenPos.y);	×
581	}	×
582
583	KeyEvent VideoSDL2::GetModKeyState() const	×
584	{
585	KeyEvent ke;	×
586	setSpecialKeys(ke);	×
587	return ke;	×
588	}
589
590	void* VideoSDL2::GetMapPointer() const	×
591	{
592	#ifdef WIN32
593	SDL_SysWMinfo wmInfo;
594	SDL_VERSION(&wmInfo.version);
595	SDL_GetWindowWMInfo(window, &wmInfo);
596	// return (void*)wmInfo.info.win.window;
597	return (void*)wmInfo.info.win.window;
598	#else
599	return nullptr;	×
600	#endif
601	}
602
603	void VideoSDL2::MoveWindowToCenter()	×
604	{
NEW 605	SDL_PumpEvents(); // Let window system run update events/initialization	×
NEW 606	const int display = window ? std::max(0, SDL_GetWindowDisplayIndex(window)) : 0;	×
607
608	SDL_Rect usableBounds;
NEW 609	CHECK_SDL(SDL_GetDisplayUsableBounds(display, &usableBounds));	×
610	int top, left, bottom, right;
NEW 611	if(!CHECK_SDL(SDL_GetWindowBordersSize(window, &top, &left, &bottom, &right)))	×
612	top = left = bottom = right = 0;	×
NEW 613	auto wndOuterSize = GetWindowSize();	×
NEW 614	wndOuterSize.width += left + right;	×
NEW 615	wndOuterSize.height += top + bottom;	×
NEW 616	if(usableBounds.w < wndOuterSize.width \|\| usableBounds.h < wndOuterSize.height)	×
617	{
NEW 618	SDL_SetWindowSize(window, usableBounds.w - left - right, usableBounds.h - top - bottom);	×
619	UpdateCurrentSizes();	×
NEW 620	wndOuterSize.width = usableBounds.w;	×
NEW 621	wndOuterSize.height = usableBounds.h;	×
622	}
NEW 623	const int x = usableBounds.x + (usableBounds.w - wndOuterSize.width) / 2 + left;	×
NEW 624	const int y = usableBounds.y + (usableBounds.h - wndOuterSize.height) / 2 + top;	×
NEW 625	SDL_SetWindowPosition(window, x, y);	×
NEW 626	}	×
627
NEW 628	void VideoSDL2::UpdateCurrentDisplayMode()	×
629	{
NEW 630	RTTR_Assert(window);	×
NEW 631	const auto flags = SDL_GetWindowFlags(window);	×
NEW 632	if(flags & SDL_WINDOW_FULLSCREEN)	×
NEW 633	displayMode_ = DisplayMode::Fullscreen;	×
NEW 634	else if((flags & SDL_WINDOW_BORDERLESS) != 0)	×
NEW 635	displayMode_ = DisplayMode::BorderlessWindow;	×
636	else
NEW 637	displayMode_ = DisplayMode::Windowed;	×
NEW 638	displayMode_.resizeable = (flags & SDL_WINDOW_RESIZABLE) != 0;	×
UNCOV 639	}	×

Return-To-The-Roots / s25client / 24903561834

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