renderman.h

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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/>.
 */

#ifndef GRAPHICS_RENDER_RENDERMANAGER_H
#define GRAPHICS_RENDER_RENDERMANAGER_H

#include "glm/vec3.hpp"
#include "glm/mat4x4.hpp"

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

#include "src/common/singleton.h"

namespace Graphics {

namespace Render {

class RenderManager : public Common::Singleton<RenderManager> {
public:

    enum SortingHints {
        SORT_HINT_NORMAL = 0,   // Set normal render order sorting.
        SORT_HINT_ALLDEPTH = 1  // Sort _everything_ by depth. Not optimal for rendering, but some games require it.
    };

    RenderManager();
    ~RenderManager();

    void setSortingHint(SortingHints hint);

    void setCameraReference(const glm::vec3 &reference);

    void queueRenderable(Shader::ShaderRenderable *renderable, const glm::mat4 *transform, float alpha);

    void sort();

    void render();

    void clear();

    void init() {}
    void deinit() {}
    void cleanup() {}

private:
    RenderQueue _queueColorSolidPrimary;
    RenderQueue _queueColorSolidSecondary;
    RenderQueue _queueColorSolidDecal;
    RenderQueue _queueColorTransparentPrimary;
    RenderQueue _queueColorTransparentSecondary;
    RenderQueue _queueLast;

    SortingHints _sortingHints;

    //std::vector<GLContainer *> _queueColorImmediate; // For anything special outside the normal render path.
};

} // namespace Render

} // namespace Graphics

#define RenderMan Graphics::Render::RenderManager::instance()

#endif // GRAPHICS_RENDER_RENDERMANAGER_H