// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Extremely basic gadget for re-using textures, since texture creation turns out to be quite expensive.
 * Copyright (C) 2022 PBS <pbs3141@gmail.com>
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */

#ifndef INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H
#define INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H

#include <memory>
#include "texture.h"

namespace Inkscape {
namespace UI {
namespace Widget {

class TextureCache
{
public:
    virtual ~TextureCache() = default;

    static std::unique_ptr<TextureCache> create();

    /**
     * Request a texture of at least the given dimensions.
     * The texture is bound to GL_TEXTURE_2D.
     */
    virtual Texture request(Geom::IntPoint const &dimensions) = 0;

    /**
     * Return a no-longer used texture to the pool.
     */
    virtual void finish(Texture tex) = 0;
};

} // namespace Widget
} // namespace UI
} // namespace Inkscape

#endif // INKSCAPE_UI_WIDGET_CANVAS_TEXTURECACHE_H

/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :