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SDL_androidwindow.c

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208 lines (164 loc) · 6.33 KB
 
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/*
Simple DirectMedia Layer
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Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_ANDROID
#include "SDL_syswm.h"
#include "../SDL_sysvideo.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/SDL_mouse_c.h"
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#include "../../events/SDL_windowevents_c.h"
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#include "../../core/android/SDL_android.h"
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#include "SDL_androidvideo.h"
#include "SDL_androidwindow.h"
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#include "SDL_hints.h"
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/* Currently only one window */
SDL_Window *Android_Window = NULL;
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int
Android_CreateWindow(_THIS, SDL_Window * window)
{
SDL_WindowData *data;
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int retval = 0;
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SDL_LockMutex(Android_ActivityMutex);
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if (Android_Window) {
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retval = SDL_SetError("Android only supports one window");
goto endfunction;
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Android_PauseSem = SDL_CreateSemaphore(0);
Android_ResumeSem = SDL_CreateSemaphore(0);
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/* Set orientation */
Android_JNI_SetOrientation(window->w, window->h, window->flags & SDL_WINDOW_RESIZABLE, SDL_GetHint(SDL_HINT_ORIENTATIONS));
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/* Adjust the window data to match the screen */
window->x = 0;
window->y = 0;
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window->w = Android_SurfaceWidth;
window->h = Android_SurfaceHeight;
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window->flags &= ~SDL_WINDOW_RESIZABLE; /* window is NEVER resizeable */
window->flags &= ~SDL_WINDOW_HIDDEN;
window->flags |= SDL_WINDOW_SHOWN; /* only one window on Android */
window->flags |= SDL_WINDOW_INPUT_FOCUS; /* always has input focus */
/* One window, it always has focus */
SDL_SetMouseFocus(window);
SDL_SetKeyboardFocus(window);
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data = (SDL_WindowData *) SDL_calloc(1, sizeof(*data));
if (!data) {
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retval = SDL_OutOfMemory();
goto endfunction;
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data->native_window = Android_JNI_GetNativeWindow();
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if (!data->native_window) {
SDL_free(data);
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retval = SDL_SetError("Could not fetch native window");
goto endfunction;
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/* Do not create EGLSurface for Vulkan window since it will then make the window
incompatible with vkCreateAndroidSurfaceKHR */
if ((window->flags & SDL_WINDOW_VULKAN) == 0) {
data->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) data->native_window);
if (data->egl_surface == EGL_NO_SURFACE) {
ANativeWindow_release(data->native_window);
SDL_free(data);
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retval = -1;
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goto endfunction;
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}
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}
window->driverdata = data;
Android_Window = window;
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endfunction:
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SDL_UnlockMutex(Android_ActivityMutex);
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return retval;
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Android_SetWindowTitle(_THIS, SDL_Window *window)
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{
Android_JNI_SetActivityTitle(window->title);
}
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void
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Android_SetWindowFullscreen(_THIS, SDL_Window *window, SDL_VideoDisplay *display, SDL_bool fullscreen)
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{
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SDL_LockMutex(Android_ActivityMutex);
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if (window == Android_Window) {
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/* If the window is being destroyed don't change visible state */
if (!window->is_destroying) {
Android_JNI_SetWindowStyle(fullscreen);
}
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/* Ensure our size matches reality after we've executed the window style change.
*
* It is possible that we've set width and height to the full-size display, but on
* Samsung DeX or Chromebooks or other windowed Android environemtns, our window may
* still not be the full display size.
*/
if (!SDL_IsDeXMode() && !SDL_IsChromebook()) {
goto endfunction;
}
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SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
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if (!data || !data->native_window) {
goto endfunction;
}
int old_w = window->w;
int old_h = window->h;
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int new_w = ANativeWindow_getWidth(data->native_window);
int new_h = ANativeWindow_getHeight(data->native_window);
if (old_w != new_w || old_h != new_h) {
SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, new_w, new_h);
}
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}
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endfunction:
SDL_UnlockMutex(Android_ActivityMutex);
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}
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Android_DestroyWindow(_THIS, SDL_Window *window)
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{
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SDL_LockMutex(Android_ActivityMutex);
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if (window == Android_Window) {
Android_Window = NULL;
if (Android_PauseSem) SDL_DestroySemaphore(Android_PauseSem);
if (Android_ResumeSem) SDL_DestroySemaphore(Android_ResumeSem);
Android_PauseSem = NULL;
Android_ResumeSem = NULL;
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if (window->driverdata) {
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
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if (data->egl_surface != EGL_NO_SURFACE) {
SDL_EGL_DestroySurface(_this, data->egl_surface);
}
if (data->native_window) {
ANativeWindow_release(data->native_window);
}
SDL_free(window->driverdata);
window->driverdata = NULL;
}
}
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SDL_UnlockMutex(Android_ActivityMutex);
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Android_GetWindowWMInfo(_THIS, SDL_Window *window, SDL_SysWMinfo *info)
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{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
if (info->version.major == SDL_MAJOR_VERSION &&
info->version.minor == SDL_MINOR_VERSION) {
info->subsystem = SDL_SYSWM_ANDROID;
info->info.android.window = data->native_window;
info->info.android.surface = data->egl_surface;
return SDL_TRUE;
} else {
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SDL_SetError("Application not compiled with SDL %d.%d",
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SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return SDL_FALSE;
}
}
#endif /* SDL_VIDEO_DRIVER_ANDROID */
/* vi: set ts=4 sw=4 expandtab: */