Rewrite rendering engine (#6253)

* Clean draw_*() arguments

* Split rendering core

* Add anaglyph 3D

* Interlaced 3D

* Drop obsolete methods

1 files changed, 101 insertions, 0 deletions

diff --git a/src/client/render/core.cpp b/src/client/render/core.cpp
new file mode 100644
index 000000000..7a4230c84
--- /dev/null
+++ b/src/client/render/core.cpp
@@ -0,0 +1,101 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2017 numzero, Lobachesky Vitaly <numzer0@yandex.ru>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "core.h"
+#include "camera.h"
+#include "client.h"
+#include "clientmap.h"
+#include "hud.h"
+#include "minimap.h"
+
+RenderingCore::RenderingCore(IrrlichtDevice *_device, Client *_client, Hud *_hud)
+    : device(_device), driver(device->getVideoDriver()), smgr(device->getSceneManager()),
+      guienv(device->getGUIEnvironment()), client(_client), camera(client->getCamera()),
+      mapper(client->getMinimap()), hud(_hud)
+{
+	screensize = driver->getScreenSize();
+	virtual_size = screensize;
+}
+
+RenderingCore::~RenderingCore()
+{
+	clearTextures();
+}
+
+void RenderingCore::initialize()
+{
+	// have to be called late as the VMT is not ready in the constructor:
+	initTextures();
+}
+
+void RenderingCore::updateScreenSize()
+{
+	virtual_size = screensize;
+	clearTextures();
+	initTextures();
+}
+
+void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
+		bool _draw_wield_tool, bool _draw_crosshair)
+{
+	v2u32 ss = driver->getScreenSize();
+	if (screensize != ss) {
+		screensize = ss;
+		updateScreenSize();
+	}
+	skycolor = _skycolor;
+	show_hud = _show_hud;
+	show_minimap = _show_minimap;
+	draw_wield_tool = _draw_wield_tool;
+	draw_crosshair = _draw_crosshair;
+
+	beforeDraw();
+	drawAll();
+}
+
+void RenderingCore::draw3D()
+{
+	smgr->drawAll();
+	driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
+	if (!show_hud)
+		return;
+	hud->drawSelectionMesh();
+	if (draw_wield_tool)
+		camera->drawWieldedTool();
+}
+
+void RenderingCore::drawHUD()
+{
+	if (show_hud) {
+		if (draw_crosshair)
+			hud->drawCrosshair();
+		hud->drawHotbar(client->getPlayerItem());
+		hud->drawLuaElements(camera->getOffset());
+		camera->drawNametags();
+		if (mapper && show_minimap)
+			mapper->drawMinimap();
+	}
+	guienv->drawAll();
+}
+
+void RenderingCore::drawPostFx()
+{
+	client->getEnv().getClientMap().renderPostFx(camera->getCameraMode());
+}