image.h

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/*
 * Copyright 2011, Blender Foundation.
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef __IMAGE_H__
#define __IMAGE_H__

#include "device_memory.h"

#include "util_string.h"
#include "util_vector.h"

CCL_NAMESPACE_BEGIN

#define TEX_IMAGE_MAX 100

class Device;
class DeviceScene;
class Progress;

class ImageManager {
public:
    ImageManager();
    ~ImageManager();

    int add_image(const string& filename);
    void remove_image(const string& filename);

    void device_update(Device *device, DeviceScene *dscene, Progress& progress);
    void device_free(Device *device, DeviceScene *dscene);

    void set_osl_texture_system(void *texture_system);

    bool need_update;

private:
    struct Image {
        string filename;

        bool need_load;
        int users;
    };

    vector<Image*> images;
    void *osl_texture_system;

    bool file_load_image(Image *img, device_vector<uchar4>& tex_img);

    void device_load_image(Device *device, DeviceScene *dscene, int slot);
    void device_free_image(Device *device, DeviceScene *dscene, int slot);
};

CCL_NAMESPACE_END

#endif /* __IMAGE_H__ */