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luanti/src/client/render/sidebyside.cpp
2025-02-01 13:41:51 +01:00

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2.7 KiB
C++

// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
// Copyright (C) 2017 numzero, Lobachevskiy Vitaliy <numzer0@yandex.ru>
#include "sidebyside.h"
#include "client/client.h"
#include "client/hud.h"
#include "client/camera.h"
#include <ISceneManager.h>
DrawImageStep::DrawImageStep(u8 texture_index, v2f _offset) :
texture_index(texture_index), offset(_offset)
{}
void DrawImageStep::setRenderSource(RenderSource *_source)
{
source = _source;
}
void DrawImageStep::setRenderTarget(RenderTarget *_target)
{
target = _target;
}
void DrawImageStep::run(PipelineContext &context)
{
if (target)
target->activate(context);
auto texture = source->getTexture(texture_index);
core::dimension2du output_size = context.device->getVideoDriver()->getScreenSize();
v2s32 pos(offset.X * output_size.Width, offset.Y * output_size.Height);
context.device->getVideoDriver()->draw2DImage(texture, pos);
}
void populateSideBySidePipeline(RenderPipeline *pipeline, Client *client, bool horizontal, bool flipped, v2f &virtual_size_scale)
{
static const u8 TEXTURE_LEFT = 0;
static const u8 TEXTURE_RIGHT = 1;
static const u8 TEXTURE_DEPTH = 2;
auto driver = client->getSceneManager()->getVideoDriver();
video::ECOLOR_FORMAT color_format = selectColorFormat(driver);
video::ECOLOR_FORMAT depth_format = selectDepthFormat(driver);
v2f offset;
if (horizontal) {
virtual_size_scale = v2f(1.0f, 0.5f);
offset = v2f(0.0f, 0.5f);
}
else {
virtual_size_scale = v2f(0.5f, 1.0f);
offset = v2f(0.5f, 0.0f);
}
TextureBuffer *buffer = pipeline->createOwned<TextureBuffer>();
buffer->setTexture(TEXTURE_LEFT, virtual_size_scale, "3d_render_left", color_format);
buffer->setTexture(TEXTURE_RIGHT, virtual_size_scale, "3d_render_right", color_format);
buffer->setTexture(TEXTURE_DEPTH, virtual_size_scale, "3d_depthmap_sidebyside", depth_format);
auto step3D = pipeline->own(create3DStage(client, virtual_size_scale));
// eyes
for (bool right : { false, true }) {
pipeline->addStep<OffsetCameraStep>(flipped ? !right : right);
auto output = pipeline->createOwned<TextureBufferOutput>(
buffer, std::vector<u8> {right ? TEXTURE_RIGHT : TEXTURE_LEFT}, TEXTURE_DEPTH);
pipeline->addStep<SetRenderTargetStep>(step3D, output);
pipeline->addStep(step3D);
pipeline->addStep<DrawWield>();
pipeline->addStep<MapPostFxStep>();
pipeline->addStep<DrawHUD>();
}
pipeline->addStep<OffsetCameraStep>(0.0f);
auto screen = pipeline->createOwned<ScreenTarget>();
for (bool right : { false, true }) {
auto step = pipeline->addStep<DrawImageStep>(
right ? TEXTURE_RIGHT : TEXTURE_LEFT,
right ? offset : v2f());
step->setRenderSource(buffer);
step->setRenderTarget(screen);
}
}