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/************************************************************************
*
* Copyright (C) 2015-2025 IRCAD France
* Copyright (C) 2015-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight 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 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "viz/scene3d/texture.hpp"
#include <viz/scene3d/detail/texture_manager.hpp>
namespace sight::viz::scene3d
{
//-----------------------------------------------------------------------------
texture::texture(const data::image::csptr& _image, const std::string& _suffix_id)
{
m_resource = detail::texture_manager::get()->instantiate(_image, _suffix_id);
}
//-----------------------------------------------------------------------------
texture::~texture()
{
if(m_resource)
{
detail::texture_manager::get()->release(m_resource);
}
}
//-----------------------------------------------------------------------------
void texture::update()
{
m_window = viz::scene3d::detail::texture_manager::get()->load(m_resource).second;
}
//-----------------------------------------------------------------------------
void texture::set_dirty()
{
if(m_resource)
{
m_resource->touch();
}
}
//------------------------------------------------------------------------------
void texture::bind(
Ogre::TextureUnitState* _tex_unit,
Ogre::TextureType _type,
Ogre::TextureFilterOptions _filter_type,
Ogre::TextureAddressingMode _address_mode
) const
{
SIGHT_ASSERT("The texture unit is null.", _tex_unit);
_tex_unit->setTextureName(m_resource->getName(), _type);
_tex_unit->setTextureFiltering(_filter_type);
_tex_unit->setTextureAddressingMode(_address_mode);
}
//------------------------------------------------------------------------------
void texture::bind(
Ogre::Pass* _pass,
const std::string& _sampler_name,
std::optional<Ogre::TextureFilterOptions> _filter_type,
std::optional<Ogre::TextureAddressingMode> _address_mode,
bool _upload_window_uniform
) const
{
SIGHT_ASSERT("The pass is null.", _pass);
Ogre::TextureUnitState* tex_unit = _pass->getTextureUnitState(_sampler_name);
SIGHT_ASSERT("The sampler '" + _sampler_name + "' cannot be retrieved.", tex_unit);
if(_filter_type != std::nullopt)
{
tex_unit->setTextureFiltering(_filter_type.value());
}
if(_address_mode != std::nullopt)
{
tex_unit->setTextureAddressingMode(_address_mode.value());
}
if(m_resource)
{
tex_unit->setTexture(m_resource);
tex_unit->setTextureName(m_resource->getName(), m_resource->getTextureType());
}
auto fp_params = _pass->getFragmentProgramParameters();
if(_upload_window_uniform && fp_params && (fp_params->_findNamedConstantDefinition("u_window") != nullptr))
{
fp_params->setNamedConstant("u_window", this->window());
}
}
//------------------------------------------------------------------------------
void texture::create_binding(
Ogre::Pass* _pass,
const std::string& _sampler_name,
const std::string& _uniform_name,
std::optional<Ogre::TextureFilterOptions> _filter_type,
std::optional<Ogre::TextureAddressingMode> _address_mode
) const
{
SIGHT_ASSERT("The pass is null.", _pass);
Ogre::TextureUnitState* const tex_unit = _pass->createTextureUnitState(_sampler_name);
SIGHT_ASSERT("The sampler '" + _sampler_name + "' cannot be retrieved.", tex_unit);
if(_filter_type != std::nullopt)
{
tex_unit->setTextureFiltering(_filter_type.value());
}
if(_address_mode != std::nullopt)
{
tex_unit->setTextureAddressingMode(_address_mode.value());
}
if(m_resource)
{
tex_unit->setTexture(m_resource);
tex_unit->setTextureName(m_resource->getName(), m_resource->getTextureType());
}
auto fp_params = _pass->getFragmentProgramParameters();
auto tex_unit_index = _pass->getTextureUnitStateIndex(tex_unit);
fp_params->setNamedConstant(_uniform_name, tex_unit_index);
}
//-----------------------------------------------------------------------------
} // namespace sight::viz::scene3d
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