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fix EGL context loss on Android

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This commit is contained in:
omigamedev
2017-09-27 20:21:34 +01:00
parent 50d7e57d7c
commit 90ec0b6f7b
2 changed files with 46 additions and 12 deletions
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52
android/src/main/cpp/main.cpp
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@@ -54,8 +54,13 @@ struct saved_state {
float angle;
int32_t x;
int32_t y;
EGLDisplay display;
EGLContext context;
};
EGLDisplay g_display = EGL_NO_DISPLAY;
EGLContext g_context = EGL_NO_CONTEXT;
/**
* Shared state for our app.
*/
@@ -251,9 +256,14 @@ static int engine_init_display(struct engine* engine) {
EGLSurface surface;
EGLContext context;
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(display, 0, 0);
EGLDisplay display = g_display;
if (g_display == EGL_NO_DISPLAY)
{
LOG("DYSPLAY CREATE");
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(display, 0, 0);
}
else LOG("DISPLAY RESUME");
/* Here, the application chooses the configuration it desires.
* find the best match if possible, otherwise use the very first one
@@ -295,7 +305,15 @@ static int engine_init_display(struct engine* engine) {
EGL_NONE
};
context = eglCreateContext(display, config, EGL_NO_CONTEXT, attribs_test);
bool resuming_context = true;
context = g_context;
if (g_context == EGL_NO_CONTEXT)
{
LOG("CONTEXT CREATE");
context = eglCreateContext(display, config, EGL_NO_CONTEXT, attribs_test);
resuming_context = false;
}
else LOG("CONTEXT RESUME");
if (context == EGL_NO_CONTEXT)
{
@@ -363,6 +381,15 @@ static int engine_init_display(struct engine* engine) {
engine->height = h;
engine->state.angle = 0;
g_display = display;
g_context = context;
if (resuming_context)
{
LOG("RESUME APP");
return 0;
}
// Check openGL on the system
auto opengl_info = { GL_VENDOR, GL_RENDERER, GL_VERSION/*, GL_EXTENSIONS*/ };
for (auto name : opengl_info) {
@@ -496,13 +523,13 @@ static void engine_draw_frame(struct engine* engine) {
static void engine_term_display(struct engine* engine) {
if (engine->display != EGL_NO_DISPLAY) {
eglMakeCurrent(engine->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (engine->context != EGL_NO_CONTEXT) {
eglDestroyContext(engine->display, engine->context);
}
// if (engine->context != EGL_NO_CONTEXT) {
// eglDestroyContext(engine->display, engine->context);
// }
if (engine->surface != EGL_NO_SURFACE) {
eglDestroySurface(engine->display, engine->surface);
}
eglTerminate(engine->display);
// eglTerminate(engine->display);
}
engine->animating = 0;
engine->display = EGL_NO_DISPLAY;
@@ -700,11 +727,16 @@ static int32_t engine_handle_input(struct android_app* app, AInputEvent* event)
static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
struct engine* engine = (struct engine*)app->userData;
switch (cmd) {
case APP_CMD_RESUME:
LOG("APP_CMD_RESUME");
App::I.redraw = true;
break;
case APP_CMD_SAVE_STATE:
// The system has asked us to save our current state. Do so.
engine->app->savedState = malloc(sizeof(struct saved_state));
*((struct saved_state*)engine->app->savedState) = engine->state;
engine->app->savedStateSize = sizeof(struct saved_state);
LOG("SAVE STATE");
break;
case APP_CMD_INIT_WINDOW:
// The window is being shown, get it ready.
@@ -715,7 +747,7 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
break;
case APP_CMD_TERM_WINDOW:
// The window is being hidden or closed, clean it up.
App::I.terminate();
//App::I.terminate();
engine_term_display(engine);
//exit(0);
break;
@@ -772,12 +804,14 @@ void android_main(struct android_app* state) {
state->looper, LOOPER_ID_USER,
NULL, NULL);
LOG("START MAIN");
if (state->savedState != NULL) {
// We are starting with a previous saved state; restore from it.
engine.state = *(struct saved_state*)state->savedState;
}
//App::I.create();
App::I.redraw = true;
// loop waiting for stuff to do.