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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);
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,
video::SColor(255, 255, 255, 255), 1.0, 1.0),
};
static const u16 indices[6] = {0, 1, 2, 2, 3, 0};
driver->setMaterial(mat);
driver->drawVertexPrimitiveList(&vertices, 4, &indices, 2);
}
void RenderingCoreInterlaced::useEye(bool _right)
{
driver->setRenderTarget(_right ? right : left, true, true, skycolor);
RenderingCoreStereo::useEye(_right);
}
void RenderingCoreInterlaced::resetEye()
{
driver->setRenderTarget(nullptr, false, false, skycolor);
RenderingCoreStereo::resetEye();
}
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