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#include "SDL_androidevents.h"
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#include "SDL_events.h"
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#include "SDL_androidwindow.h"
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void android_egl_context_backup();
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void android_egl_context_restore();
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android_egl_context_restore()
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SDL_WindowData *data = (SDL_WindowData *) Android_Window->driverdata;
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if (SDL_GL_MakeCurrent(Android_Window, (SDL_GLContext) data->egl_context) < 0) {
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/* The context is no longer valid, create a new one */
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/* FIXME: Notify the user that the context changed and textures need to be re created */
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data->egl_context = (EGLContext) SDL_GL_CreateContext(Android_Window);
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SDL_GL_MakeCurrent(Android_Window, (SDL_GLContext) data->egl_context);
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android_egl_context_backup()
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/* Keep a copy of the EGL Context so we can try to restore it when we resume */
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SDL_WindowData *data = (SDL_WindowData *) Android_Window->driverdata;
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data->egl_context = SDL_GL_GetCurrentContext();
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/* We need to do this so the EGLSurface can be freed */
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SDL_GL_MakeCurrent(Android_Window, NULL);
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Android_PumpEvents(_THIS)
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#if SDL_ANDROID_BLOCK_ON_PAUSE
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if (isPaused && !isPausing) {
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/* Make sure this is the last thing we do before pausing */
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android_egl_context_backup();
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if(SDL_SemWait(Android_ResumeSem) == 0) {
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if(SDL_SemTryWait(Android_ResumeSem) == 0) {
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/* TODO: Should we double check if we are on the same thread as the one that made the original GL context?
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* This call will go through the following chain of calls in Java:
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* SDLActivity::createGLContext -> SDLActivity:: initEGL -> SDLActivity::createEGLSurface -> SDLActivity::createEGLContext
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* SDLActivity::createEGLContext will attempt to restore the GL context first, and if that fails it will create a new one
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* If a new GL context is created, the user needs to restore the textures manually (TODO: notify the user that this happened with a message)
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SDL_GL_CreateContext(Android_Window);
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/* Restore the GL Context from here, as this operation is thread dependent */
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android_egl_context_restore();
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#if SDL_ANDROID_BLOCK_ON_PAUSE
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if( isPausing || SDL_SemTryWait(Android_PauseSem) == 0 ) {
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/* We've been signaled to pause, but before we block ourselves, we need to make sure that
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SDL_WINDOWEVENT_FOCUS_LOST and SDL_WINDOWEVENT_MINIMIZED have reached the app */
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if (SDL_HasEvent(SDL_WINDOWEVENT)) {
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/* We've been signaled to pause, but before we block ourselves,
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we need to make sure that certain key events have reached the app */
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if (SDL_HasEvent(SDL_WINDOWEVENT) || SDL_HasEvent(SDL_APP_WILLENTERBACKGROUND) || SDL_HasEvent(SDL_APP_DIDENTERBACKGROUND) ) {
added
removed
src/video/android/SDL_androidevents.c
