// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2021 Liso <anlismon@gmail.com>

#include "shadowsScreenQuad.h"
#include <IVideoDriver.h>

shadowScreenQuad::shadowScreenQuad()
{
	Material.Wireframe = false;

	video::SColor color(0x0);
	Vertices[0] = video::S3DVertex(
			-1.0f, -1.0f, 0.0f, 0, 0, 1, color, 0.0f, 1.0f);
	Vertices[1] = video::S3DVertex(
			-1.0f, 1.0f, 0.0f, 0, 0, 1, color, 0.0f, 0.0f);
	Vertices[2] = video::S3DVertex(
			1.0f, 1.0f, 0.0f, 0, 0, 1, color, 1.0f, 0.0f);
	Vertices[3] = video::S3DVertex(
			1.0f, -1.0f, 0.0f, 0, 0, 1, color, 1.0f, 1.0f);
	Vertices[4] = video::S3DVertex(
			-1.0f, -1.0f, 0.0f, 0, 0, 1, color, 0.0f, 1.0f);
	Vertices[5] = video::S3DVertex(
			1.0f, 1.0f, 0.0f, 0, 0, 1, color, 1.0f, 0.0f);
}

void shadowScreenQuad::render(video::IVideoDriver *driver)
{
	u16 indices[6] = {0, 1, 2, 3, 4, 5};
	driver->setMaterial(Material);
	driver->setTransform(video::ETS_WORLD, core::matrix4());
	driver->drawIndexedTriangleList(&Vertices[0], 6, &indices[0], 2);
}

void shadowScreenQuadCB::OnSetConstants(
		video::IMaterialRendererServices *services, s32 userData)
{
	s32 TextureId = 0;
	m_sm_client_map_setting.set(&TextureId, services);

	TextureId = 1;
	m_sm_client_map_trans_setting.set(&TextureId, services);

	TextureId = 2;
	m_sm_dynamic_sampler_setting.set(&TextureId, services);
}