render/egl: enable EGL_LOSE_CONTEXT_ON_RESET

This allows the GLES2 renderer to figure out when a GPU reset
happens.

include/render/egl.h

@@ -15,6 +15,7 @@ struct wlr_egl {
 		bool EXT_image_dma_buf_import;
 		bool EXT_image_dma_buf_import_modifiers;
 		bool IMG_context_priority;
+		bool EXT_create_context_robustness;
 
 		// Device extensions
 		bool EXT_device_drm;

render/egl.c

@@ -288,6 +288,9 @@ static bool egl_init_display(struct wlr_egl *egl, EGLDisplay display) {
 			"eglQueryDmaBufModifiersEXT");
 	}
 
+	egl->exts.EXT_create_context_robustness =
+		check_egl_ext(display_exts_str, "EGL_EXT_create_context_robustness");
+
 	const char *device_exts_str = NULL, *driver_name = NULL;
 	if (egl->exts.EXT_device_query) {
 		EGLAttrib device_attrib;
@@ -385,7 +388,7 @@ static bool egl_init(struct wlr_egl *egl, EGLenum platform,
 	}
 
 	size_t atti = 0;
-	EGLint attribs[5];
+	EGLint attribs[7];
 	attribs[atti++] = EGL_CONTEXT_CLIENT_VERSION;
 	attribs[atti++] = 2;
 
@@ -400,6 +403,11 @@ static bool egl_init(struct wlr_egl *egl, EGLenum platform,
 		attribs[atti++] = EGL_CONTEXT_PRIORITY_HIGH_IMG;
 	}
 
+	if (egl->exts.EXT_create_context_robustness) {
+		attribs[atti++] = EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_EXT;
+		attribs[atti++] = EGL_LOSE_CONTEXT_ON_RESET_EXT;
+	}
+
 	attribs[atti++] = EGL_NONE;
 	assert(atti <= sizeof(attribs)/sizeof(attribs[0]));