1 files changed, 74 insertions, 0 deletions
diff --git a/src/client/render/sidebyside.cpp b/src/client/render/sidebyside.cpp
new file mode 100644
index 000000000..2af09ee33
--- /dev/null
+++ b/src/client/render/sidebyside.cpp
@@ -0,0 +1,74 @@
+/*
+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 "sidebyside.h"
+#include <ICameraSceneNode.h>
+#include "hud.h"
+
+RenderingCoreSideBySide::RenderingCoreSideBySide(
+		IrrlichtDevice *_device, Client *_client, Hud *_hud, bool _horizontal)
+    : RenderingCoreStereo(_device, _client, _hud), horizontal(_horizontal)
+{
+}
+
+void RenderingCoreSideBySide::initTextures()
+{
+	if (horizontal) {
+		image_size = {screensize.X, screensize.Y / 2};
+		rpos = v2s32(0, screensize.Y / 2);
+	} else {
+		image_size = {screensize.X / 2, screensize.Y};
+		rpos = v2s32(screensize.X / 2, 0);
+	}
+	virtual_size = image_size;
+	left = driver->addRenderTargetTexture(
+			image_size, "3d_render_left", video::ECF_A8R8G8B8);
+	right = driver->addRenderTargetTexture(
+			image_size, "3d_render_right", video::ECF_A8R8G8B8);
+}
+
+void RenderingCoreSideBySide::clearTextures()
+{
+	driver->removeTexture(left);
+	driver->removeTexture(right);
+}
+
+void RenderingCoreSideBySide::drawAll()
+{
+	driver->OnResize(image_size); // HACK to make GUI smaller
+	renderBothImages();
+	driver->OnResize(screensize);
+	driver->draw2DImage(left, {});
+	driver->draw2DImage(right, rpos);
+}
+
+void RenderingCoreSideBySide::useEye(bool _right)
+{
+	driver->setRenderTarget(_right ? right : left, true, true, skycolor);
+	RenderingCoreStereo::useEye(_right);
+}
+
+void RenderingCoreSideBySide::resetEye()
+{
+	hud->resizeHotbar();
+	drawHUD();
+	driver->setRenderTarget(nullptr, false, false, skycolor);
+	RenderingCoreStereo::resetEye();
+}