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authorautocommitter <autocommitter@linux-forks.de>2024-04-22 15:03:04 +0200
committerautocommitter <autocommitter@linux-forks.de>2024-04-22 15:03:04 +0200
commit26813270f4092417d9f1f52a9763813457cbf918 (patch)
tree2e532f444c888a9d6fb0e9cefacffa43809e9731 /Crossroads/nodes/(1835,5,1000).lua
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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 numzero, Lobachevskiy Vitaliy <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 "interlaced.h"
#include "client/client.h"
#include "client/shader.h"
#include "client/tile.h"

RenderingCoreInterlaced::RenderingCoreInterlaced(
	IrrlichtDevice *_device, Client *_client, Hud *_hud)
	: RenderingCoreStereo(_device, _client, _hud)
{
	initMaterial();
}

void RenderingCoreInterlaced::initMaterial()
{
	IShaderSource *s = client->getShaderSource();
	mat.UseMipMaps = false;
	mat.ZBuffer = false;
	mat.ZWriteEnable = false;
	u32 shader = s->getShader("3d_interlaced_merge", TILE_MATERIAL_BASIC, 0);
	mat.MaterialType = s->getShaderInfo(shader).material;
	for (int k = 0; k < 3; ++k) {
		mat.TextureLayer[k].AnisotropicFilter = false;
		mat.TextureLayer[k].BilinearFilter = false;
		mat.TextureLayer[k].TrilinearFilter = false;
		mat.TextureLayer[k].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
		mat.TextureLayer[k].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
	}
}

void RenderingCoreInterlaced::initTextures()
{
	v2u32 image_size{screensize.X, screensize.Y / 2};
	left = driver->addRenderTargetTexture(
			image_size, "3d_render_left", video::ECF_A8R8G8B8);
	right = driver->addRenderTargetTexture(
			image_size, "3d_render_right", video::ECF_A8R8G8B8);
	mask = driver->addTexture(screensize, "3d_render_mask", video::ECF_A8R8G8B8);
	initMask();
	mat.TextureLayer[0].Texture = left;
	mat.TextureLayer[1].Texture = right;
	mat.TextureLayer[2].Texture = mask;
}

void RenderingCoreInterlaced::clearTextures()
{
	driver->removeTexture(left);
	driver->removeTexture(right);
	driver->removeTexture(mask);
}

void RenderingCoreInterlaced::initMask()
{
	u8 *data = reinterpret_cast<u8 *>(mask->lock());
	for (u32 j = 0; j < screensize.Y; j++) {
		u8 val = j % 2 ? 0xff : 0x00;
		memset(data, val, 4 * screensize.X);
		data += 4 * screensize.X;
	}
	mask->unlock();
}

void RenderingCoreInterlaced::drawAll()
{
	renderBothImages();
	merge();
	drawHUD();
}

void RenderingCoreInterlaced::merge()
{
	static const video::S3DVertex vertices[4] = {
			video::S3DVertex(1.0, -1.0, 0.0, 0.0, 0.0, -1.0,
					video::SColor(255, 0, 255, 255), 1.0, 0.0),
			video::S3DVertex(-1.0, -1.0, 0.0, 0.0, 0.0, -1.0,
					video::SColor(255, 255, 0, 255), 0.0, 0.0),
			video::S3DVertex(-1.0, 1.0, 0.0, 0.0, 0.0, -1.0,
					video::SColor(255, 255, 255, 0), 0.0, 1.0),
			video::S3DVertex(1.0, 1.0, 0.0, 0.0, 0.0, -1.0,