src/video/wayland/SDL_waylandwindow.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 03 Jan 2018 10:03:25 -0800
changeset 11811 5d94cb6b24d3
parent 11284 3db78361e751
child 11848 2f157c1ca383
permissions -rw-r--r--
Updated copyright for 2018
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL
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#include "../SDL_sysvideo.h"
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#include "../../events/SDL_windowevents_c.h"
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#include "../SDL_egl_c.h"
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#include "SDL_waylandevents_c.h"
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#include "SDL_waylandwindow.h"
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#include "SDL_waylandvideo.h"
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#include "SDL_waylandtouch.h"
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#include "SDL_waylanddyn.h"
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#include "SDL_hints.h"
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static void
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handle_ping(void *data, struct wl_shell_surface *shell_surface,
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            uint32_t serial)
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{
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    wl_shell_surface_pong(shell_surface, serial);
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}
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static void
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handle_configure(void *data, struct wl_shell_surface *shell_surface,
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                 uint32_t edges, int32_t width, int32_t height)
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{
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    SDL_WindowData *wind = (SDL_WindowData *)data;
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    SDL_Window *window = wind->sdlwindow;
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    struct wl_region *region;
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    /* wl_shell_surface spec states that this is a suggestion.
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       Ignore if less than or greater than max/min size. */
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    if (width == 0 || height == 0) {
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        return;
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    }
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    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
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        if ((window->flags & SDL_WINDOW_RESIZABLE)) {
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            if (window->max_w > 0) {
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                width = SDL_min(width, window->max_w);
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            } 
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            width = SDL_max(width, window->min_w);
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            if (window->max_h > 0) {
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                height = SDL_min(height, window->max_h);
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            }
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            height = SDL_max(height, window->min_h);
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        } else {
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            return;
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        }
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    }
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    if (width == window->w && height == window->h) {
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        return;
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    }
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    window->w = width;
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    window->h = height;
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    WAYLAND_wl_egl_window_resize(wind->egl_window, window->w, window->h, 0, 0);
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    region = wl_compositor_create_region(wind->waylandData->compositor);
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    wl_region_add(region, 0, 0, window->w, window->h);
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    wl_surface_set_opaque_region(wind->surface, region);
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    wl_region_destroy(region);
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    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, window->w, window->h);
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}
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static void
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handle_popup_done(void *data, struct wl_shell_surface *shell_surface)
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{
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}
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static const struct wl_shell_surface_listener shell_surface_listener = {
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    handle_ping,
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    handle_configure,
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    handle_popup_done
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};
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#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH
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static void
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handle_onscreen_visibility(void *data,
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        struct qt_extended_surface *qt_extended_surface, int32_t visible)
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{
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}
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static void
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handle_set_generic_property(void *data,
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        struct qt_extended_surface *qt_extended_surface, const char *name,
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        struct wl_array *value)
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{
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}
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static void
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handle_close(void *data, struct qt_extended_surface *qt_extended_surface)
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{
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    SDL_WindowData *window = (SDL_WindowData *)data;
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    SDL_SendWindowEvent(window->sdlwindow, SDL_WINDOWEVENT_CLOSE, 0, 0);
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}
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static const struct qt_extended_surface_listener extended_surface_listener = {
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    handle_onscreen_visibility,
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    handle_set_generic_property,
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    handle_close,
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};
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#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
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SDL_bool
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Wayland_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
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{
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    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
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    const Uint32 version = ((((Uint32) info->version.major) * 1000000) +
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                            (((Uint32) info->version.minor) * 10000) +
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                            (((Uint32) info->version.patch)));
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    /* Before 2.0.6, it was possible to build an SDL with Wayland support
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       (SDL_SysWMinfo will be large enough to hold Wayland info), but build
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       your app against SDL headers that didn't have Wayland support
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       (SDL_SysWMinfo could be smaller than Wayland needs. This would lead
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       to an app properly using SDL_GetWindowWMInfo() but we'd accidentally
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       overflow memory on the stack or heap. To protect against this, we've
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       padded out the struct unconditionally in the headers and Wayland will
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       just return an error for older apps using this function. Those apps
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       will need to be recompiled against newer headers or not use Wayland,
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       maybe by forcing SDL_VIDEODRIVER=x11. */
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    if (version < 2000006) {
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        info->subsystem = SDL_SYSWM_UNKNOWN;
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        SDL_SetError("Version must be 2.0.6 or newer");
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        return SDL_FALSE;
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    }
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    info->info.wl.display = data->waylandData->display;
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    info->info.wl.surface = data->surface;
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    info->info.wl.shell_surface = data->shell_surface;
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    info->subsystem = SDL_SYSWM_WAYLAND;
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    return SDL_TRUE;
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}
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int
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Wayland_SetWindowHitTest(SDL_Window *window, SDL_bool enabled)
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{
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    return 0;  /* just succeed, the real work is done elsewhere. */
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}
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void Wayland_ShowWindow(_THIS, SDL_Window *window)
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{
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    SDL_WindowData *wind = window->driverdata;
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    if (window->flags & SDL_WINDOW_FULLSCREEN)
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        wl_shell_surface_set_fullscreen(wind->shell_surface,
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                                        WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
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                                        0, (struct wl_output *)window->fullscreen_mode.driverdata);
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    else
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        wl_shell_surface_set_toplevel(wind->shell_surface);
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    WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
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}
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#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH
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static void SDLCALL
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QtExtendedSurface_OnHintChanged(void *userdata, const char *name,
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        const char *oldValue, const char *newValue)
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{
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    struct qt_extended_surface *qt_extended_surface = userdata;
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    if (name == NULL) {
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        return;
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    }
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    if (strcmp(name, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION) == 0) {
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        int32_t orientation = QT_EXTENDED_SURFACE_ORIENTATION_PRIMARYORIENTATION;
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        if (newValue != NULL) {
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            if (strcmp(newValue, "portrait") == 0) {
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                orientation = QT_EXTENDED_SURFACE_ORIENTATION_PORTRAITORIENTATION;
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            } else if (strcmp(newValue, "landscape") == 0) {
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                orientation = QT_EXTENDED_SURFACE_ORIENTATION_LANDSCAPEORIENTATION;
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            } else if (strcmp(newValue, "inverted-portrait") == 0) {
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                orientation = QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDPORTRAITORIENTATION;
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            } else if (strcmp(newValue, "inverted-landscape") == 0) {
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                orientation = QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDLANDSCAPEORIENTATION;
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            }
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        }
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        qt_extended_surface_set_content_orientation(qt_extended_surface, orientation);
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    } else if (strcmp(name, SDL_HINT_QTWAYLAND_WINDOW_FLAGS) == 0) {
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        uint32_t flags = 0;
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        if (newValue != NULL) {
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            char *tmp = strdup(newValue);
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            char *saveptr = NULL;
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            char *flag = strtok_r(tmp, " ", &saveptr);
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            while (flag) {
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                if (strcmp(flag, "OverridesSystemGestures") == 0) {
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                    flags |= QT_EXTENDED_SURFACE_WINDOWFLAG_OVERRIDESSYSTEMGESTURES;
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                } else if (strcmp(flag, "StaysOnTop") == 0) {
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                    flags |= QT_EXTENDED_SURFACE_WINDOWFLAG_STAYSONTOP;
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                } else if (strcmp(flag, "BypassWindowManager") == 0) {
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                    // See https://github.com/qtproject/qtwayland/commit/fb4267103d
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                    flags |= 4 /* QT_EXTENDED_SURFACE_WINDOWFLAG_BYPASSWINDOWMANAGER */;
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                }
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                flag = strtok_r(NULL, " ", &saveptr);
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            }
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            free(tmp);
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        }
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        qt_extended_surface_set_window_flags(qt_extended_surface, flags);
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    }
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}
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static void QtExtendedSurface_Subscribe(struct qt_extended_surface *surface, const char *name)
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{
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    SDL_AddHintCallback(name, QtExtendedSurface_OnHintChanged, surface);
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}
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static void QtExtendedSurface_Unsubscribe(struct qt_extended_surface *surface, const char *name)
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{
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    SDL_DelHintCallback(name, QtExtendedSurface_OnHintChanged, surface);
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}
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#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
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void
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Wayland_SetWindowFullscreen(_THIS, SDL_Window * window,
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                            SDL_VideoDisplay * _display, SDL_bool fullscreen)
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{
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    SDL_WindowData *wind = window->driverdata;
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    if (fullscreen)
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        wl_shell_surface_set_fullscreen(wind->shell_surface,
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                                        WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE,
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                                        0, (struct wl_output *)_display->driverdata);
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    else
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        wl_shell_surface_set_toplevel(wind->shell_surface);
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    WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
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}
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void
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Wayland_RestoreWindow(_THIS, SDL_Window * window)
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{
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    SDL_WindowData *wind = window->driverdata;
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    wl_shell_surface_set_toplevel(wind->shell_surface);
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    WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
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}
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void
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Wayland_MaximizeWindow(_THIS, SDL_Window * window)
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{
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    SDL_WindowData *wind = window->driverdata;
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    wl_shell_surface_set_maximized(wind->shell_surface, NULL);
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    WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
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}
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int Wayland_CreateWindow(_THIS, SDL_Window *window)
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{
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    SDL_WindowData *data;
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    SDL_VideoData *c;
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    struct wl_region *region;
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    data = calloc(1, sizeof *data);
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    if (data == NULL)
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        return SDL_OutOfMemory();
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    c = _this->driverdata;
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    window->driverdata = data;
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    if (!(window->flags & SDL_WINDOW_OPENGL)) {
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        SDL_GL_LoadLibrary(NULL);
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        window->flags |= SDL_WINDOW_OPENGL;
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    }
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    if (window->x == SDL_WINDOWPOS_UNDEFINED) {
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        window->x = 0;
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    }
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    if (window->y == SDL_WINDOWPOS_UNDEFINED) {
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        window->y = 0;
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    }
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    data->waylandData = c;
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    data->sdlwindow = window;
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    data->surface =
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        wl_compositor_create_surface(c->compositor);
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    wl_surface_set_user_data(data->surface, data);
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    data->shell_surface = wl_shell_get_shell_surface(c->shell,
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                                                     data->surface);
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    wl_shell_surface_set_class (data->shell_surface, c->classname);
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#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH
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    if (c->surface_extension) {
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        data->extended_surface = qt_surface_extension_get_extended_surface(
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                c->surface_extension, data->surface);
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        QtExtendedSurface_Subscribe(data->extended_surface, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION);
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        QtExtendedSurface_Subscribe(data->extended_surface, SDL_HINT_QTWAYLAND_WINDOW_FLAGS);
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    }
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#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
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    data->egl_window = WAYLAND_wl_egl_window_create(data->surface,
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                                            window->w, window->h);
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    /* Create the GLES window surface */
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    data->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) data->egl_window);
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    if (data->egl_surface == EGL_NO_SURFACE) {
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        return SDL_SetError("failed to create a window surface");
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    }
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    if (data->shell_surface) {
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        wl_shell_surface_set_user_data(data->shell_surface, data);
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        wl_shell_surface_add_listener(data->shell_surface,
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                                      &shell_surface_listener, data);
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    }
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#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH
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    if (data->extended_surface) {
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   344
        qt_extended_surface_set_user_data(data->extended_surface, data);
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   345
        qt_extended_surface_add_listener(data->extended_surface,
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   346
                                         &extended_surface_listener, data);
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   347
    }
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   348
#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
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   349
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   350
    region = wl_compositor_create_region(c->compositor);
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   351
    wl_region_add(region, 0, 0, window->w, window->h);
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   352
    wl_surface_set_opaque_region(data->surface, region);
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   353
    wl_region_destroy(region);
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   354
slouken@10304
   355
    if (c->relative_mouse_mode) {
slouken@10304
   356
        Wayland_input_lock_pointer(c->input);
slouken@10304
   357
    }
slouken@10304
   358
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   359
    WAYLAND_wl_display_flush(c->display);
gabomdq@8062
   360
gabomdq@8062
   361
    return 0;
gabomdq@8062
   362
}
gabomdq@8062
   363
gabomdq@8062
   364
void Wayland_SetWindowSize(_THIS, SDL_Window * window)
gabomdq@8062
   365
{
gabomdq@8062
   366
    SDL_VideoData *data = _this->driverdata;
gabomdq@8062
   367
    SDL_WindowData *wind = window->driverdata;
gabomdq@8062
   368
    struct wl_region *region;
gabomdq@8062
   369
gabomdq@8104
   370
    WAYLAND_wl_egl_window_resize(wind->egl_window, window->w, window->h, 0, 0);
gabomdq@8062
   371
gabomdq@8104
   372
    region =wl_compositor_create_region(data->compositor);
gabomdq@8062
   373
    wl_region_add(region, 0, 0, window->w, window->h);
gabomdq@8062
   374
    wl_surface_set_opaque_region(wind->surface, region);
gabomdq@8062
   375
    wl_region_destroy(region);
gabomdq@8062
   376
}
gabomdq@8062
   377
slouken@10492
   378
void Wayland_SetWindowTitle(_THIS, SDL_Window * window)
slouken@10492
   379
{
slouken@10492
   380
    SDL_WindowData *wind = window->driverdata;
slouken@10492
   381
    
slouken@10492
   382
    if (window->title != NULL) {
slouken@10492
   383
        wl_shell_surface_set_title(wind->shell_surface, window->title);
slouken@10492
   384
    }
slouken@10492
   385
slouken@10492
   386
    WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );
slouken@10492
   387
}
slouken@10492
   388
gabomdq@8062
   389
void Wayland_DestroyWindow(_THIS, SDL_Window *window)
gabomdq@8062
   390
{
gabomdq@8062
   391
    SDL_VideoData *data = _this->driverdata;
gabomdq@8062
   392
    SDL_WindowData *wind = window->driverdata;
gabomdq@8062
   393
gabomdq@8062
   394
    if (data) {
gabomdq@8062
   395
        SDL_EGL_DestroySurface(_this, wind->egl_surface);
gabomdq@8104
   396
        WAYLAND_wl_egl_window_destroy(wind->egl_window);
gabomdq@8062
   397
gabomdq@8062
   398
        if (wind->shell_surface)
gabomdq@8062
   399
            wl_shell_surface_destroy(wind->shell_surface);
gabomdq@8062
   400
gabomdq@8082
   401
#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH
m@10614
   402
        if (wind->extended_surface) {
m@10614
   403
            QtExtendedSurface_Unsubscribe(wind->extended_surface, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION);
m@10614
   404
            QtExtendedSurface_Unsubscribe(wind->extended_surface, SDL_HINT_QTWAYLAND_WINDOW_FLAGS);
gabomdq@8082
   405
            qt_extended_surface_destroy(wind->extended_surface);
m@10614
   406
        }
gabomdq@8082
   407
#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
gabomdq@8062
   408
        wl_surface_destroy(wind->surface);
gabomdq@8062
   409
gabomdq@8062
   410
        SDL_free(wind);
gabomdq@8104
   411
        WAYLAND_wl_display_flush(data->display);
gabomdq@8062
   412
    }
slouken@8978
   413
    window->driverdata = NULL;
gabomdq@8062
   414
}
gabomdq@8062
   415
icculus@8116
   416
#endif /* SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL */
icculus@8116
   417
gabomdq@8062
   418
/* vi: set ts=4 sw=4 expandtab: */