renderman.cpp

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * xoreos 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#include "glm/gtc/type_ptr.hpp"

#include "src/graphics/render/renderman.h"

DECLARE_SINGLETON(Graphics::Render::RenderManager)

namespace Graphics {

namespace Render {

RenderManager::RenderManager() : _sortingHints(SORT_HINT_NORMAL) {
}

RenderManager::~RenderManager() {
}

void RenderManager::setSortingHint(SortingHints hint) {
    _sortingHints = hint;
}

void RenderManager::setCameraReference(const glm::vec3 &reference) {
    _queueColorSolidPrimary.setCameraReference(reference);
    _queueColorSolidSecondary.setCameraReference(reference);
    _queueColorSolidDecal.setCameraReference(reference);
    _queueColorTransparentPrimary.setCameraReference(reference);
    _queueColorTransparentSecondary.setCameraReference(reference);
}

void RenderManager::queueRenderable(Shader::ShaderRenderable *renderable, const glm::mat4 *transform, float alpha) {
    uint32 flags = renderable->getMaterial()->getFlags();
    if (flags & Shader::ShaderMaterial::MATERIAL_DECAL) {
        _queueColorSolidDecal.queueItem(renderable, transform, alpha);
    } else if (flags & Shader::ShaderMaterial::MATERIAL_TRANSPARENT) {
        if (flags & Shader::ShaderMaterial::MATERIAL_TRANSPARENT_B) {
            _queueColorTransparentSecondary.queueItem(renderable, transform, alpha);
        } else {
            _queueColorTransparentPrimary.queueItem(renderable, transform, alpha);
        }
    } else {
        if (renderable->getMaterial()->getFlags() & Shader::ShaderMaterial::MATERIAL_OPAQUE) {
            _queueColorSolidPrimary.queueItem(renderable, transform, alpha);
        } else if (renderable->getMesh()->getVertexBuffer()->getCount() > 6) {
            _queueColorSolidSecondary.queueItem(renderable, transform, alpha);
        } else {
            _queueColorSolidDecal.queueItem(renderable, transform, alpha);
        }
    }
}

void RenderManager::sort() {
    switch (_sortingHints) {
    case SORT_HINT_NORMAL:
        _queueColorSolidPrimary.sortShader();
        _queueColorSolidSecondary.sortShader();
        _queueColorSolidDecal.sortShader();
        _queueColorTransparentPrimary.sortDepth();
        _queueColorTransparentSecondary.sortDepth();
        break;
    case SORT_HINT_ALLDEPTH:
        _queueColorSolidPrimary.sortDepth();
        _queueColorSolidSecondary.sortDepth();
        _queueColorSolidDecal.sortDepth();
        _queueColorTransparentPrimary.sortDepth();
        _queueColorTransparentSecondary.sortDepth();
        break;
    default: break;
    }
}

void RenderManager::render() {
    _queueColorSolidPrimary.render();
    _queueColorSolidSecondary.render();
    _queueColorSolidDecal.render();
    _queueColorTransparentPrimary.render();
    _queueColorTransparentSecondary.render();
}

void RenderManager::clear() {
    _queueColorSolidPrimary.clear();
    _queueColorSolidSecondary.clear();
    _queueColorSolidDecal.clear();
    _queueColorTransparentPrimary.clear();
    _queueColorTransparentSecondary.clear();
}

} // namespace Render

} // namespace Graphics