1 /*
2   Simple DirectMedia Layer
3   Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4 
5   This software is provided 'as-is', without any express or implied
6   warranty.  In no event will the authors be held liable for any damages
7   arising from the use of this software.
8 
9   Permission is granted to anyone to use this software for any purpose,
10   including commercial applications, and to alter it and redistribute it
11   freely, subject to the following restrictions:
12 
13   1. The origin of this software must not be misrepresented; you must not
14      claim that you wrote the original software. If you use this software
15      in a product, an acknowledgment in the product documentation would be
16      appreciated but is not required.
17   2. Altered source versions must be plainly marked as such, and must not be
18      misrepresented as being the original software.
19   3. This notice may not be removed or altered from any source distribution.
20 */
21 
22 /**
23  *  \file SDL_syswm.h
24  *
25  *  Include file for SDL custom system window manager hooks.
26  */
27 
28 #ifndef SDL_syswm_h_
29 #define SDL_syswm_h_
30 
31 #include "SDL_stdinc.h"
32 #include "SDL_error.h"
33 #include "SDL_video.h"
34 #include "SDL_version.h"
35 
36 /**
37  *  \brief SDL_syswm.h
38  *
39  *  Your application has access to a special type of event ::SDL_SYSWMEVENT,
40  *  which contains window-manager specific information and arrives whenever
41  *  an unhandled window event occurs.  This event is ignored by default, but
42  *  you can enable it with SDL_EventState().
43  */
44 struct SDL_SysWMinfo;
45 
46 #if !defined(SDL_PROTOTYPES_ONLY)
47 
48 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
49 #ifndef WIN32_LEAN_AND_MEAN
50 #define WIN32_LEAN_AND_MEAN
51 #endif
52 #ifndef NOMINMAX   /* don't define min() and max(). */
53 #define NOMINMAX
54 #endif
55 #include <windows.h>
56 #endif
57 
58 #if defined(SDL_VIDEO_DRIVER_WINRT)
59 #include <Inspectable.h>
60 #endif
61 
62 /* This is the structure for custom window manager events */
63 #if defined(SDL_VIDEO_DRIVER_X11)
64 #if defined(__APPLE__) && defined(__MACH__)
65 /* conflicts with Quickdraw.h */
66 #define Cursor X11Cursor
67 #endif
68 
69 #include <X11/Xlib.h>
70 #include <X11/Xatom.h>
71 
72 #if defined(__APPLE__) && defined(__MACH__)
73 /* matches the re-define above */
74 #undef Cursor
75 #endif
76 
77 #endif /* defined(SDL_VIDEO_DRIVER_X11) */
78 
79 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
80 #include <directfb.h>
81 #endif
82 
83 #if defined(SDL_VIDEO_DRIVER_COCOA)
84 #ifdef __OBJC__
85 @class NSWindow;
86 #else
87 typedef struct _NSWindow NSWindow;
88 #endif
89 #endif
90 
91 #if defined(SDL_VIDEO_DRIVER_UIKIT)
92 #ifdef __OBJC__
93 #include <UIKit/UIKit.h>
94 #else
95 typedef struct _UIWindow UIWindow;
96 typedef struct _UIViewController UIViewController;
97 #endif
98 typedef Uint32 GLuint;
99 #endif
100 
101 #if defined(SDL_VIDEO_DRIVER_ANDROID)
102 typedef struct ANativeWindow ANativeWindow;
103 typedef void *EGLSurface;
104 #endif
105 
106 #if defined(SDL_VIDEO_DRIVER_VIVANTE)
107 #include "SDL_egl.h"
108 #endif
109 
110 #if defined(SDL_VIDEO_DRIVER_OS2)
111 #define INCL_WIN
112 #include <os2.h>
113 #endif
114 #endif /* SDL_PROTOTYPES_ONLY */
115 
116 #if defined(SDL_VIDEO_DRIVER_KMSDRM)
117 struct gbm_device;
118 #endif
119 
120 
121 #include "begin_code.h"
122 /* Set up for C function definitions, even when using C++ */
123 #ifdef __cplusplus
124 extern "C" {
125 #endif
126 
127 #if !defined(SDL_PROTOTYPES_ONLY)
128 /**
129  *  These are the various supported windowing subsystems
130  */
131 typedef enum
132 {
133     SDL_SYSWM_UNKNOWN,
134     SDL_SYSWM_WINDOWS,
135     SDL_SYSWM_X11,
136     SDL_SYSWM_DIRECTFB,
137     SDL_SYSWM_COCOA,
138     SDL_SYSWM_UIKIT,
139     SDL_SYSWM_WAYLAND,
140     SDL_SYSWM_MIR,  /* no longer available, left for API/ABI compatibility. Remove in 2.1! */
141     SDL_SYSWM_WINRT,
142     SDL_SYSWM_ANDROID,
143     SDL_SYSWM_VIVANTE,
144     SDL_SYSWM_OS2,
145     SDL_SYSWM_HAIKU,
146     SDL_SYSWM_KMSDRM,
147     SDL_SYSWM_RISCOS
148 } SDL_SYSWM_TYPE;
149 
150 /**
151  *  The custom event structure.
152  */
153 struct SDL_SysWMmsg
154 {
155     SDL_version version;
156     SDL_SYSWM_TYPE subsystem;
157     union
158     {
159 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
160         struct {
161             HWND hwnd;                  /**< The window for the message */
162             UINT msg;                   /**< The type of message */
163             WPARAM wParam;              /**< WORD message parameter */
164             LPARAM lParam;              /**< LONG message parameter */
165         } win;
166 #endif
167 #if defined(SDL_VIDEO_DRIVER_X11)
168         struct {
169             XEvent event;
170         } x11;
171 #endif
172 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
173         struct {
174             DFBEvent event;
175         } dfb;
176 #endif
177 #if defined(SDL_VIDEO_DRIVER_COCOA)
178         struct
179         {
180             /* Latest version of Xcode clang complains about empty structs in C v. C++:
181                  error: empty struct has size 0 in C, size 1 in C++
182              */
183             int dummy;
184             /* No Cocoa window events yet */
185         } cocoa;
186 #endif
187 #if defined(SDL_VIDEO_DRIVER_UIKIT)
188         struct
189         {
190             int dummy;
191             /* No UIKit window events yet */
192         } uikit;
193 #endif
194 #if defined(SDL_VIDEO_DRIVER_VIVANTE)
195         struct
196         {
197             int dummy;
198             /* No Vivante window events yet */
199         } vivante;
200 #endif
201 #if defined(SDL_VIDEO_DRIVER_OS2)
202         struct
203         {
204             BOOL fFrame;                /**< TRUE if hwnd is a frame window */
205             HWND hwnd;                  /**< The window receiving the message */
206             ULONG msg;                  /**< The message identifier */
207             MPARAM mp1;                 /**< The first first message parameter */
208             MPARAM mp2;                 /**< The second first message parameter */
209         } os2;
210 #endif
211         /* Can't have an empty union */
212         int dummy;
213     } msg;
214 };
215 
216 /**
217  *  The custom window manager information structure.
218  *
219  *  When this structure is returned, it holds information about which
220  *  low level system it is using, and will be one of SDL_SYSWM_TYPE.
221  */
222 struct SDL_SysWMinfo
223 {
224     SDL_version version;
225     SDL_SYSWM_TYPE subsystem;
226     union
227     {
228 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
229         struct
230         {
231             HWND window;                /**< The window handle */
232             HDC hdc;                    /**< The window device context */
233             HINSTANCE hinstance;        /**< The instance handle */
234         } win;
235 #endif
236 #if defined(SDL_VIDEO_DRIVER_WINRT)
237         struct
238         {
239             IInspectable * window;      /**< The WinRT CoreWindow */
240         } winrt;
241 #endif
242 #if defined(SDL_VIDEO_DRIVER_X11)
243         struct
244         {
245             Display *display;           /**< The X11 display */
246             Window window;              /**< The X11 window */
247         } x11;
248 #endif
249 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
250         struct
251         {
252             IDirectFB *dfb;             /**< The directfb main interface */
253             IDirectFBWindow *window;    /**< The directfb window handle */
254             IDirectFBSurface *surface;  /**< The directfb client surface */
255         } dfb;
256 #endif
257 #if defined(SDL_VIDEO_DRIVER_COCOA)
258         struct
259         {
260 #if defined(__OBJC__) && defined(__has_feature)
261         #if __has_feature(objc_arc)
262             NSWindow __unsafe_unretained *window; /**< The Cocoa window */
263         #else
264             NSWindow *window;                     /**< The Cocoa window */
265         #endif
266 #else
267             NSWindow *window;                     /**< The Cocoa window */
268 #endif
269         } cocoa;
270 #endif
271 #if defined(SDL_VIDEO_DRIVER_UIKIT)
272         struct
273         {
274 #if defined(__OBJC__) && defined(__has_feature)
275         #if __has_feature(objc_arc)
276             UIWindow __unsafe_unretained *window; /**< The UIKit window */
277         #else
278             UIWindow *window;                     /**< The UIKit window */
279         #endif
280 #else
281             UIWindow *window;                     /**< The UIKit window */
282 #endif
283             GLuint framebuffer; /**< The GL view's Framebuffer Object. It must be bound when rendering to the screen using GL. */
284             GLuint colorbuffer; /**< The GL view's color Renderbuffer Object. It must be bound when SDL_GL_SwapWindow is called. */
285             GLuint resolveFramebuffer; /**< The Framebuffer Object which holds the resolve color Renderbuffer, when MSAA is used. */
286         } uikit;
287 #endif
288 #if defined(SDL_VIDEO_DRIVER_WAYLAND)
289         struct
290         {
291             struct wl_display *display;             /**< Wayland display */
292             struct wl_surface *surface;             /**< Wayland surface */
293             void *shell_surface;                    /**< DEPRECATED Wayland shell_surface (window manager handle) */
294             struct wl_egl_window *egl_window;       /**< Wayland EGL window (native window) */
295             struct xdg_surface *xdg_surface;        /**< Wayland xdg surface (window manager handle) */
296             struct xdg_toplevel *xdg_toplevel;      /**< Wayland xdg toplevel role */
297         } wl;
298 #endif
299 #if defined(SDL_VIDEO_DRIVER_MIR)  /* no longer available, left for API/ABI compatibility. Remove in 2.1! */
300         struct
301         {
302             void *connection;  /**< Mir display server connection */
303             void *surface;  /**< Mir surface */
304         } mir;
305 #endif
306 
307 #if defined(SDL_VIDEO_DRIVER_ANDROID)
308         struct
309         {
310             ANativeWindow *window;
311             EGLSurface surface;
312         } android;
313 #endif
314 
315 #if defined(SDL_VIDEO_DRIVER_OS2)
316         struct
317         {
318             HWND hwnd;                  /**< The window handle */
319             HWND hwndFrame;             /**< The frame window handle */
320         } os2;
321 #endif
322 
323 #if defined(SDL_VIDEO_DRIVER_VIVANTE)
324         struct
325         {
326             EGLNativeDisplayType display;
327             EGLNativeWindowType window;
328         } vivante;
329 #endif
330 
331 #if defined(SDL_VIDEO_DRIVER_KMSDRM)
332         struct
333         {
334             int dev_index;               /**< Device index (ex: the X in /dev/dri/cardX) */
335             int drm_fd;                  /**< DRM FD (unavailable on Vulkan windows) */
336             struct gbm_device *gbm_dev;  /**< GBM device (unavailable on Vulkan windows) */
337         } kmsdrm;
338 #endif
339 
340         /* Make sure this union is always 64 bytes (8 64-bit pointers). */
341         /* Be careful not to overflow this if you add a new target! */
342         Uint8 dummy[64];
343     } info;
344 };
345 
346 #endif /* SDL_PROTOTYPES_ONLY */
347 
348 typedef struct SDL_SysWMinfo SDL_SysWMinfo;
349 
350 
351 /**
352  * Get driver-specific information about a window.
353  *
354  * You must include SDL_syswm.h for the declaration of SDL_SysWMinfo.
355  *
356  * The caller must initialize the `info` structure's version by using
357  * `SDL_VERSION(&info.version)`, and then this function will fill in the rest
358  * of the structure with information about the given window.
359  *
360  * \param window the window about which information is being requested
361  * \param info an SDL_SysWMinfo structure filled in with window information
362  * \returns SDL_TRUE if the function is implemented and the `version` member
363  *          of the `info` struct is valid, or SDL_FALSE if the information
364  *          could not be retrieved; call SDL_GetError() for more information.
365  *
366  * \since This function is available since SDL 2.0.0.
367  */
368 extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowWMInfo(SDL_Window * window,
369                                                      SDL_SysWMinfo * info);
370 
371 
372 /* Ends C function definitions when using C++ */
373 #ifdef __cplusplus
374 }
375 #endif
376 #include "close_code.h"
377 
378 #endif /* SDL_syswm_h_ */
379 
380 /* vi: set ts=4 sw=4 expandtab: */
381