diff options
Diffstat (limited to 'src/client/render/plain.cpp')
-rw-r--r-- | src/client/render/plain.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/client/render/plain.cpp b/src/client/render/plain.cpp new file mode 100644 index 000000000..94921245b --- /dev/null +++ b/src/client/render/plain.cpp @@ -0,0 +1,76 @@ +/* +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 "plain.h" +#include "settings.h" + +inline u32 scaledown(u32 coef, u32 size) +{ + return (size + coef - 1) / coef; +} + +RenderingCorePlain::RenderingCorePlain( + IrrlichtDevice *_device, Client *_client, Hud *_hud) + : RenderingCore(_device, _client, _hud) +{ + scale = g_settings->getU16("undersampling"); +} + +void RenderingCorePlain::initTextures() +{ + if (!scale) + return; + v2u32 size{scaledown(scale, screensize.X), scaledown(scale, screensize.Y)}; + lowres = driver->addRenderTargetTexture( + size, "render_lowres", video::ECF_A8R8G8B8); +} + +void RenderingCorePlain::clearTextures() +{ + if (!scale) + return; + driver->removeTexture(lowres); +} + +void RenderingCorePlain::beforeDraw() +{ + if (!scale) + return; + driver->setRenderTarget(lowres, true, true, skycolor); +} + +void RenderingCorePlain::upscale() +{ + if (!scale) + return; + driver->setRenderTarget(0, true, true); + v2u32 size{scaledown(scale, screensize.X), scaledown(scale, screensize.Y)}; + v2u32 dest_size{scale * size.X, scale * size.Y}; + driver->draw2DImage(lowres, core::rect<s32>(0, 0, dest_size.X, dest_size.Y), + core::rect<s32>(0, 0, size.X, size.Y)); +} + +void RenderingCorePlain::drawAll() +{ + draw3D(); + drawPostFx(); + upscale(); + drawHUD(); +} |