1 files changed, 7 insertions, 38 deletions

diff --git a/drivers/gles2/rasterizer_gles2.cpp b/drivers/gles2/rasterizer_gles2.cpp
index ab48e682d6..5de1d5f1dc 100644
--- a/drivers/gles2/rasterizer_gles2.cpp
+++ b/drivers/gles2/rasterizer_gles2.cpp
@@ -203,7 +203,7 @@ void RasterizerGLES2::initialize() {
 
 #endif // GLAD_ENABLED
 
-		// For debugging
+	// For debugging
 #ifdef GLES_OVER_GL
 	if (GLAD_GL_ARB_debug_output) {
 		glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_ERROR_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE);
@@ -227,21 +227,14 @@ void RasterizerGLES2::initialize() {
 	scene->initialize();
 }
 
-void RasterizerGLES2::begin_frame() {
-	uint64_t tick = OS::get_singleton()->get_ticks_usec();
+void RasterizerGLES2::begin_frame(double frame_step) {
+	time_total += frame_step;
 
-	double delta = double(tick - prev_ticks) / 1000000.0;
-	delta *= Engine::get_singleton()->get_time_scale();
-
-	time_total += delta;
-
-	if (delta == 0) {
+	if (frame_step == 0) {
 		//to avoid hiccups
-		delta = 0.001;
+		frame_step = 0.001;
 	}
 
-	prev_ticks = tick;
-
 	// double time_roll_over = GLOBAL_GET("rendering/limits/time/time_rollover_secs");
 	// if (time_total > time_roll_over)
 	//	time_total = 0; //roll over every day (should be customz
@@ -251,9 +244,7 @@ void RasterizerGLES2::begin_frame() {
 	storage->frame.time[2] = Math::fmod(time_total, 900);
 	storage->frame.time[3] = Math::fmod(time_total, 60);
 	storage->frame.count++;
-	storage->frame.delta = delta;
-
-	storage->frame.prev_tick = tick;
+	storage->frame.delta = frame_step;
 
 	storage->update_dirty_resources();
 
@@ -344,28 +335,7 @@ void RasterizerGLES2::set_boot_image(const Ref<Image> &p_image, const Color &p_c
 
 	storage->free(texture);
 
-	if (OS::get_singleton()->is_layered_allowed()) {
-		if (OS::get_singleton()->get_window_per_pixel_transparency_enabled()) {
-#if (defined WINDOWS_ENABLED) && !(defined UWP_ENABLED)
-			Size2 wndsize = OS::get_singleton()->get_layered_buffer_size();
-			uint8_t *data = OS::get_singleton()->get_layered_buffer_data();
-			if (data) {
-				glReadPixels(0, 0, wndsize.x, wndsize.y, GL_BGRA, GL_UNSIGNED_BYTE, data);
-				OS::get_singleton()->swap_layered_buffer();
-
-				return;
-			}
-#endif
-		} else {
-			//clear alpha
-			glColorMask(false, false, false, true);
-			glClearColor(0, 0, 0, 1);
-			glClear(GL_COLOR_BUFFER_BIT);
-			glColorMask(true, true, true, true);
-		}
-	}
-
-	OS::get_singleton()->swap_buffers();
+	end_frame(true);
 }
 
 void RasterizerGLES2::blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen) {
@@ -452,7 +422,6 @@ RasterizerGLES2::RasterizerGLES2() {
 	scene->storage = storage;
 	storage->scene = scene;
 
-	prev_ticks = 0;
 	time_total = 0;
 }