19501815793

Committed 19 Nov 2025 12:46PM UTC coverage: 50.566% (+0.1%) from 50.469%

Build # 19501815793

Build Type

Pull #1823

github

Committed by

web-flow

Commit Message

Merge f7c183f52 into d3618af1f

Pull Request Pull Request #1823: Make sure zooming via mouse goes back to 1.0

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10.48

/extras/videoDrivers/SDL2/VideoSDL2.cpp

// Copyright (C) 2005 - 2025 Settlers Freaks (sf-team at siedler25.org)
//
// SPDX-License-Identifier: GPL-2.0-or-later

#include "VideoSDL2.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 <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

#define CHECK_SDL(call)                 \
    do                                  \
    {                                   \
        if((call) == -1)                \
            PrintError(SDL_GetError()); \
    } while(false)

namespace {
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()
{
    return "(SDL2) OpenGL via SDL2-Library";
}

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 _;
    if(SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
    {
        PrintError(SDL_GetError());
        return false;
    }

    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));
}

bool VideoSDL2::CreateScreen(const std::string& title, const VideoMode& size, bool fullscreen)
{
    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))
        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));

    int wndPos = SDL_WINDOWPOS_CENTERED;

    const auto requestedSize = fullscreen ? FindClosestVideoMode(size) : size;
    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;

    window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,
                              commonFlags | (fullscreen ? SDL_WINDOW_FULLSCREEN : SDL_WINDOW_RESIZABLE));

    // Fallback to non-fullscreen
    if(!window && fullscreen)
    {
        window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,
                                  commonFlags | SDL_WINDOW_RESIZABLE);
    }

    if(!window)
    {
        PrintError(SDL_GetError());
        return false;
    }

    isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;
    UpdateCurrentSizes();

    if(!isFullscreen_)
        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(SDL_GetError());

    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(const VideoMode& newSize, bool fullscreen)
{
    if(!initialized)
        return false;

    if(isFullscreen_ != fullscreen)
    {
        SDL_SetWindowFullscreen(window, fullscreen ? SDL_WINDOW_FULLSCREEN : 0);
        isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;
        if(!isFullscreen_)
        {
            SDL_SetWindowResizable(window, SDL_TRUE);
            MoveWindowToCenter();
        }
    }

    if(newSize != GetWindowSize())
    {
        if(isFullscreen_)
        {
            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; // initialize to 0
            // 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(SDL_SetWindowDisplayMode(window, &target) < 0)
            {
                PrintError(SDL_GetError());
                return false;
            }
        } else
        {
            SDL_SetWindowSize(window, newSize.width, newSize.height);
        }
        UpdateCurrentSizes();
    }
    return true;
}

void VideoSDL2::PrintError(const std::string& msg) const
{
    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:
                    {
                        isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;
                        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;
                }

                if(ke.kt == KeyType::Invalid)
                    break;

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

                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));

                if(/*!mouse_xy.ldown && */ ev.button.button == SDL_BUTTON_LEFT)
                {
                    mouse_xy.ldown = true;
                    CallBack->Msg_LeftDown(mouse_xy);
                }
                if(/*!mouse_xy.rdown &&*/ ev.button.button == SDL_BUTTON_RIGHT)
                {
                    mouse_xy.rdown = true;
                    CallBack->Msg_RightDown(mouse_xy);
                }
                break;
            case SDL_MOUSEBUTTONUP:
                mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));

                if(/*mouse_xy.ldown &&*/ ev.button.button == SDL_BUTTON_LEFT)
                {
                    mouse_xy.ldown = false;
                    CallBack->Msg_LeftUp(mouse_xy);
                }
                if(/*mouse_xy.rdown &&*/ ev.button.button == SDL_BUTTON_RIGHT)
                {
                    mouse_xy.rdown = false;
                    CallBack->Msg_RightUp(mouse_xy);
                }
                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;
        }
    }

    return true;
}

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

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

OpenGL_Loader_Proc VideoSDL2::GetLoaderFunction() const
{
    return SDL_GL_GetProcAddress;
}

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_Rect usableBounds;
    CHECK_SDL(SDL_GetDisplayUsableBounds(SDL_GetWindowDisplayIndex(window), &usableBounds));
    int top, left, bottom, right;
    CHECK_SDL(SDL_GetWindowBordersSize(window, &top, &left, &bottom, &right));
    usableBounds.w -= left + right;
    usableBounds.h -= top + bottom;
    if(usableBounds.w < GetWindowSize().width || usableBounds.h < GetWindowSize().height)
    {
        SDL_SetWindowSize(window, usableBounds.w, usableBounds.h);
        UpdateCurrentSizes();
    }
    SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
}

1	// Copyright (C) 2005 - 2025 Settlers Freaks (sf-team at siedler25.org)
2	//
3	// SPDX-License-Identifier: GPL-2.0-or-later
4
5	#include "VideoSDL2.h"
6	#include "driver/Interface.h"
7	#include "driver/VideoDriverLoaderInterface.h"
8	#include "driver/VideoInterface.h"
9	#include "enum_cast.hpp"
10	#include "helpers/LSANUtils.h"
11	#include "helpers/containerUtils.h"
12	#include "icon.h"
13	#include "openglCfg.hpp"
14	#include <s25util/utf8.h>
15	#include <boost/nowide/iostream.hpp>
16	#include <SDL.h>
17	#include <algorithm>
18	#include <memory>
19
20	#ifdef _WIN32
21	# include <boost/nowide/convert.hpp>
22	# ifndef WIN32_LEAN_AND_MEAN
23	# define WIN32_LEAN_AND_MEAN
24	# endif
25	# include <windows.h> // Avoid "Windows headers require the default packing option" due to SDL2
26	# include <SDL_syswm.h>
27	#endif // _WIN32
28
29	#define CHECK_SDL(call) \
30	do \
31	{ \
32	if((call) == -1) \
33	PrintError(SDL_GetError()); \
34	} while(false)
35
36	namespace {
37	template<typename T>
38	struct SDLMemoryDeleter
39	{
40	void operator()(T* p) const { SDL_free(p); }	×
41	};
42
43	template<typename T>
44	using SDL_memory = std::unique_ptr<T, SDLMemoryDeleter<T>>;
45
NEW 46	void setSpecialKeys(KeyEvent& ke, const SDL_Keymod mod)	×
47	{
NEW 48	ke.ctrl = (mod & KMOD_CTRL);	×
NEW 49	ke.shift = (mod & KMOD_SHIFT);	×
NEW 50	ke.alt = (mod & KMOD_ALT);	×
NEW 51	}	×
NEW 52	void setSpecialKeys(KeyEvent& ke)	×
53	{
NEW 54	setSpecialKeys(ke, SDL_GetModState());	×
NEW 55	}	×
56	} // namespace
57
58	IVideoDriver* CreateVideoInstance(VideoDriverLoaderInterface* CallBack)	1✔
59	{
60	return new VideoSDL2(CallBack);	1✔
61	}
62
63	void FreeVideoInstance(IVideoDriver* driver)	1✔
64	{
65	delete driver;	1✔
66	}	1✔
67
68	const char* GetDriverName()	5✔
69	{
70	return "(SDL2) OpenGL via SDL2-Library";	5✔
71	}
72
73	VideoSDL2::VideoSDL2(VideoDriverLoaderInterface* CallBack) : VideoDriver(CallBack), window(nullptr), context(nullptr) {}	1✔
74
75	VideoSDL2::~VideoSDL2()	2✔
76	{
77	CleanUp();	1✔
78	}	2✔
79
80	const char* VideoSDL2::GetName() const	2✔
81	{
82	return GetDriverName();	2✔
83	}
84
85	bool VideoSDL2::Initialize()	1✔
86	{
87	initialized = false;	1✔
88	rttr::ScopedLeakDisabler _;	1✔
89	if(SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)	1✔
90	{
91	PrintError(SDL_GetError());	×
92	return false;	×
93	}
94
95	initialized = true;	1✔
96	return initialized;	1✔
97	}
98
99	void VideoSDL2::CleanUp()	1✔
100	{
101	if(!initialized)	1✔
102	return;	×
103
104	if(context)	1✔
105	SDL_GL_DeleteContext(context);	×
106	if(window)	1✔
107	SDL_DestroyWindow(window);	×
108	SDL_QuitSubSystem(SDL_INIT_VIDEO);	1✔
109	SDL_Quit();	1✔
110	initialized = false;	1✔
111	}
112
113	void VideoSDL2::UpdateCurrentSizes()	×
114	{
115	int w, h, w2, h2;
116	SDL_GetWindowSize(window, &w, &h);	×
117	SDL_GL_GetDrawableSize(window, &w2, &h2);	×
118	SetNewSize(VideoMode(w, h), Extent(w2, h2));	×
119	}	×
120
121	bool VideoSDL2::CreateScreen(const std::string& title, const VideoMode& size, bool fullscreen)	×
122	{
123	if(!initialized)	×
124	return false;	×
125
126	// GL-Attributes
127	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, RTTR_OGL_MAJOR));	×
128	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, RTTR_OGL_MINOR));	×
129	SDL_GLprofile profile;
130	if((RTTR_OGL_ES))
131	profile = SDL_GL_CONTEXT_PROFILE_ES;
132	else if((RTTR_OGL_COMPAT))
133	profile = SDL_GL_CONTEXT_PROFILE_COMPATIBILITY;	×
134	else
135	profile = SDL_GL_CONTEXT_PROFILE_CORE;
136	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, profile));	×
137
138	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8));	×
139	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8));	×
140	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8));	×
141	CHECK_SDL(SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1));	×
142
143	int wndPos = SDL_WINDOWPOS_CENTERED;	×
144
145	const auto requestedSize = fullscreen ? FindClosestVideoMode(size) : size;	×
146	unsigned commonFlags = SDL_WINDOW_OPENGL;	×
147	// TODO: Fix GUI scaling with High DPI support enabled.
148	// See https://github.com/Return-To-The-Roots/s25client/issues/1621
149	// commonFlags \|= SDL_WINDOW_ALLOW_HIGHDPI;
150
151	window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,	×
152	commonFlags \| (fullscreen ? SDL_WINDOW_FULLSCREEN : SDL_WINDOW_RESIZABLE));	×
153
154	// Fallback to non-fullscreen
155	if(!window && fullscreen)	×
156	{
157	window = SDL_CreateWindow(title.c_str(), wndPos, wndPos, requestedSize.width, requestedSize.height,	×
158	commonFlags \| SDL_WINDOW_RESIZABLE);
159	}
160
161	if(!window)	×
162	{
163	PrintError(SDL_GetError());	×
164	return false;	×
165	}
166
167	isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;	×
168	UpdateCurrentSizes();	×
169
170	if(!isFullscreen_)	×
171	MoveWindowToCenter();	×
172
173	SDL_Surface* iconSurf =
174	SDL_CreateRGBSurfaceFrom(image.data(), 48, 48, 32, 48 * 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);	×
175	if(iconSurf)	×
176	{
177	SDL_SetWindowIcon(window, iconSurf);	×
178	SDL_FreeSurface(iconSurf);	×
179	} else
180	PrintError(SDL_GetError());	×
181
182	context = SDL_GL_CreateContext(window);	×
183
184	#ifdef _WIN32
185	SetWindowTextW(GetConsoleWindow(), boost::nowide::widen(title).c_str());
186	#endif
187
188	std::fill(keyboard.begin(), keyboard.end(), false);	×
189
190	SDL_ShowCursor(0);	×
191
192	return true;	×
193	}
194
195	bool VideoSDL2::ResizeScreen(const VideoMode& newSize, bool fullscreen)	×
196	{
197	if(!initialized)	×
198	return false;	×
199
200	if(isFullscreen_ != fullscreen)	×
201	{
202	SDL_SetWindowFullscreen(window, fullscreen ? SDL_WINDOW_FULLSCREEN : 0);	×
203	isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;	×
204	if(!isFullscreen_)	×
205	{
206	SDL_SetWindowResizable(window, SDL_TRUE);	×
207	MoveWindowToCenter();	×
208	}
209	}
210
211	if(newSize != GetWindowSize())	×
212	{
213	if(isFullscreen_)	×
214	{
215	auto const targetMode = FindClosestVideoMode(newSize);	×
216	SDL_DisplayMode target;
217	target.w = targetMode.width;	×
218	target.h = targetMode.height;	×
219	target.format = 0; // don't care	×
220	target.refresh_rate = 0; // don't care	×
221	target.driverdata = nullptr; // initialize to 0	×
222	// Explicitly change the window size to avoid a bug with SDL reporting the wrong size until alt+tab
223	SDL_SetWindowSize(window, target.w, target.h);	×
224	if(SDL_SetWindowDisplayMode(window, &target) < 0)	×
225	{
226	PrintError(SDL_GetError());	×
227	return false;	×
228	}
229	} else
230	{
231	SDL_SetWindowSize(window, newSize.width, newSize.height);	×
232	}
233	UpdateCurrentSizes();	×
234	}
235	return true;	×
236	}
237
238	void VideoSDL2::PrintError(const std::string& msg) const	×
239	{
240	boost::nowide::cerr << msg << std::endl;	×
241	}	×
242
243	void VideoSDL2::ShowErrorMessage(const std::string& title, const std::string& message)	×
244	{
245	// window==nullptr is okay too ("no parent")
246	#ifdef __linux__
247	// When using window, SDL will try to use a system tool like "zenity" which isn't always installed on every distro
248	// so rttr will crash. But without a window it will use an x11 backend that should be available on x11 AND wayland
249	// for compatibility reasons
250	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), nullptr);	×
251	#else
252	SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title.c_str(), message.c_str(), window);
253	#endif
254	}	×
255
256	void VideoSDL2::HandlePaste()	×
257	{
258	if(!SDL_HasClipboardText())	×
259	return;	×
260
261	SDL_memory<char> text(SDL_GetClipboardText());	×
262	if(!text \|\| *text == '\0') // empty string indicates error	×
263	PrintError(text ? SDL_GetError() : "Paste failed.");	×
264
265	for(const char32_t c : s25util::utf8to32(text.get()))	×
NEW 266	CallBack->Msg_KeyDown(KeyEvent(c));	×
267	}
268
269	void VideoSDL2::DestroyScreen()	×
270	{
271	CleanUp();	×
272	}	×
273
274	bool VideoSDL2::SwapBuffers()	×
275	{
276	SDL_GL_SwapWindow(window);	×
277	return true;	×
278	}
279
280	bool VideoSDL2::MessageLoop()	×
281	{
282	SDL_Event ev;
283	while(SDL_PollEvent(&ev))	×
284	{
285	switch(ev.type)	×
286	{
287	default: break;	×
288
289	case SDL_QUIT: return false;	×
290	case SDL_WINDOWEVENT:	×
291	{
292	switch(ev.window.event)	×
293	{
294	case SDL_WINDOWEVENT_RESIZED:	×
295	{
296	isFullscreen_ = (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN) != 0;	×
297	VideoMode newSize(ev.window.data1, ev.window.data2);	×
298	if(newSize != GetWindowSize())	×
299	{
300	UpdateCurrentSizes();	×
301	CallBack->WindowResized();	×
302	}
303	}
304	break;	×
305	}
306	}
307	break;	×
308
309	case SDL_KEYDOWN:	×
310	{
NEW 311	KeyEvent ke;	×
312
313	switch(ev.key.keysym.sym)	×
314	{
315	default:	×
316	{
317	// Die 12 F-Tasten
318	if(ev.key.keysym.sym >= SDLK_F1 && ev.key.keysym.sym <= SDLK_F12)	×
319	ke.kt = static_cast<KeyType>(rttr::enum_cast(KeyType::F1) + ev.key.keysym.sym - SDLK_F1);	×
320	}
321	break;	×
322	case SDLK_RETURN: ke.kt = KeyType::Return; break;	×
323	case SDLK_SPACE: ke.kt = KeyType::Space; break;	×
324	case SDLK_LEFT: ke.kt = KeyType::Left; break;	×
325	case SDLK_RIGHT: ke.kt = KeyType::Right; break;	×
326	case SDLK_UP: ke.kt = KeyType::Up; break;	×
327	case SDLK_DOWN: ke.kt = KeyType::Down; break;	×
328	case SDLK_BACKSPACE: ke.kt = KeyType::Backspace; break;	×
329	case SDLK_DELETE: ke.kt = KeyType::Delete; break;	×
330	case SDLK_LSHIFT:	×
331	case SDLK_RSHIFT: ke.kt = KeyType::Shift; break;	×
332	case SDLK_TAB: ke.kt = KeyType::Tab; break;	×
333	case SDLK_HOME: ke.kt = KeyType::Home; break;	×
334	case SDLK_END: ke.kt = KeyType::End; break;	×
335	case SDLK_ESCAPE: ke.kt = KeyType::Escape; break;	×
336	case SDLK_PRINTSCREEN: ke.kt = KeyType::Print; break;	×
337	// case SDLK_BACKQUOTE: ev.key.keysym.scancode = '^'; break;
338	case SDLK_v:	×
339	if(SDL_GetModState() & KMOD_CTRL)	×
340	{
341	HandlePaste();	×
342	continue;	×
343	}
344	break;	×
345	}
346
347	if(ke.kt == KeyType::Invalid)	×
348	break;	×
349
NEW 350	setSpecialKeys(ke, SDL_Keymod(ev.key.keysym.mod));	×
351
352	CallBack->Msg_KeyDown(ke);	×
353	}
354	break;	×
355	case SDL_TEXTINPUT:	×
356	{
357	const std::u32string text = s25util::utf8to32(ev.text.text);	×
NEW 358	KeyEvent ke(0);	×
NEW 359	setSpecialKeys(ke);	×
UNCOV 360	for(char32_t c : text)	×
361	{
NEW 362	ke.c = c;	×
363	CallBack->Msg_KeyDown(ke);	×
364	}
365	break;	×
366	}
367	case SDL_MOUSEBUTTONDOWN:	×
368	mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));	×
369
370	if(/!mouse_xy.ldown && / ev.button.button == SDL_BUTTON_LEFT)	×
371	{
372	mouse_xy.ldown = true;	×
373	CallBack->Msg_LeftDown(mouse_xy);	×
374	}
375	if(/!mouse_xy.rdown &&/ ev.button.button == SDL_BUTTON_RIGHT)	×
376	{
377	mouse_xy.rdown = true;	×
378	CallBack->Msg_RightDown(mouse_xy);	×
379	}
380	break;	×
381	case SDL_MOUSEBUTTONUP:	×
382	mouse_xy.pos = getGuiScale().screenToView(Position(ev.button.x, ev.button.y));	×
383
384	if(/mouse_xy.ldown &&/ ev.button.button == SDL_BUTTON_LEFT)	×
385	{
386	mouse_xy.ldown = false;	×
387	CallBack->Msg_LeftUp(mouse_xy);	×
388	}
389	if(/mouse_xy.rdown &&/ ev.button.button == SDL_BUTTON_RIGHT)	×
390	{
391	mouse_xy.rdown = false;	×
392	CallBack->Msg_RightUp(mouse_xy);	×
393	}
394	break;	×
395	case SDL_MOUSEWHEEL:	×
396	{
397	int y = ev.wheel.y;	×
398	if(ev.wheel.direction == SDL_MOUSEWHEEL_FLIPPED)	×
399	y = -y;	×
400	if(y > 0)	×
401	CallBack->Msg_WheelUp(mouse_xy);	×
402	else if(y < 0)	×
403	CallBack->Msg_WheelDown(mouse_xy);	×
404	}
405	break;	×
406	case SDL_MOUSEMOTION:	×
407	{
408	const auto newPos = getGuiScale().screenToView(Position(ev.motion.x, ev.motion.y));	×
409	// Avoid duplicate events especially when warping the mouse
410	if(newPos != mouse_xy.pos)	×
411	{
412	mouse_xy.pos = newPos;	×
413	CallBack->Msg_MouseMove(mouse_xy);	×
414	}
415	}
416	break;	×
417	}
418	}
419
420	return true;	×
421	}
422
423	unsigned long VideoSDL2::GetTickCount() const	×
424	{
425	return SDL_GetTicks();	×
426	}
427
428	void VideoSDL2::ListVideoModes(std::vector<VideoMode>& video_modes) const	×
429	{
430	int display = SDL_GetWindowDisplayIndex(window);	×
431	if(display < 0)	×
432	display = 0;	×
433	for(int i = SDL_GetNumDisplayModes(display) - 1; i >= 0; --i)	×
434	{
435	SDL_DisplayMode mode;
436	if(SDL_GetDisplayMode(display, i, &mode) != 0)	×
437	PrintError(SDL_GetError());	×
438	else
439	{
440	VideoMode vm(mode.w, mode.h);	×
441	if(!helpers::contains(video_modes, vm))	×
442	video_modes.push_back(vm);	×
443	}
444	}
445	}	×
446
447	OpenGL_Loader_Proc VideoSDL2::GetLoaderFunction() const	×
448	{
449	return SDL_GL_GetProcAddress;	×
450	}
451
452	void VideoSDL2::SetMousePos(Position pos)	×
453	{
454	const auto screenPos = getGuiScale().viewToScreen(pos);	×
455	mouse_xy.pos = pos;	×
456	SDL_WarpMouseInWindow(window, screenPos.x, screenPos.y);	×
457	}	×
458
459	KeyEvent VideoSDL2::GetModKeyState() const	×
460	{
NEW 461	KeyEvent ke;	×
NEW 462	setSpecialKeys(ke);	×
UNCOV 463	return ke;	×
464	}
465
466	void* VideoSDL2::GetMapPointer() const	×
467	{
468	#ifdef WIN32
469	SDL_SysWMinfo wmInfo;
470	SDL_VERSION(&wmInfo.version);
471	SDL_GetWindowWMInfo(window, &wmInfo);
472	// return (void*)wmInfo.info.win.window;
473	return (void*)wmInfo.info.win.window;
474	#else
475	return nullptr;	×
476	#endif
477	}
478
479	void VideoSDL2::MoveWindowToCenter()	×
480	{
481	SDL_Rect usableBounds;
482	CHECK_SDL(SDL_GetDisplayUsableBounds(SDL_GetWindowDisplayIndex(window), &usableBounds));	×
483	int top, left, bottom, right;
484	CHECK_SDL(SDL_GetWindowBordersSize(window, &top, &left, &bottom, &right));	×
485	usableBounds.w -= left + right;	×
486	usableBounds.h -= top + bottom;	×
487	if(usableBounds.w < GetWindowSize().width \|\| usableBounds.h < GetWindowSize().height)	×
488	{
489	SDL_SetWindowSize(window, usableBounds.w, usableBounds.h);	×
490	UpdateCurrentSizes();	×
491	}
492	SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);	×
493	}	×

Return-To-The-Roots / s25client / 19501815793

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