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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
   Copyright (C) 2009 Red Hat, Inc.

   This library 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 2.1 of the License, or (at your option) any later version.

   This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _H_RED_PIXMAP
#define _H_RED_PIXMAP

#include "red_drawable.h"
#include "utils.h"
#include <pixman_utils.h>

class RedPixmap: public RedDrawable {
public:
    enum Format {
        ARGB32,
        RGB32,
        RGB16_555,
        RGB16_565,
        A1,
    };

    static int format_to_bpp(Format format) {
        if (format == RedPixmap::A1) {
            return 1;
        } else if (format == RGB16_555 || format == RGB16_565) {
            return 16;
        } else {
            return 32;
        }
    }

    static pixman_format_code_t format_to_pixman(Format format) {
            switch (format) {
            case RedPixmap::ARGB32:
                return PIXMAN_a8r8g8b8;
            case RedPixmap::RGB32:
                return PIXMAN_x8r8g8b8;
            case RedPixmap::RGB16_555:
                return PIXMAN_x1r5g5b5;
            case RedPixmap::RGB16_565:
                return PIXMAN_r5g6b5;
            case RedPixmap::A1:
                return PIXMAN_a1;
            default:
                THROW("unsupported format %d", format);
            }
    }

    static Format format_from_surface(uint32_t format) {
        switch (format) {
        case SPICE_SURFACE_FMT_16_555:
            return RedPixmap::RGB16_555;
        case SPICE_SURFACE_FMT_16_565:
            return RedPixmap::RGB16_565;
        case SPICE_SURFACE_FMT_32_xRGB:
            return RedPixmap::RGB32;
        case SPICE_SURFACE_FMT_32_ARGB:
            return RedPixmap::ARGB32;
        default:
            THROW("Unsupported RedPixman format");
        }
    }

    RedPixmap(int width, int height, Format format, bool top_bottom);
    virtual ~RedPixmap();

    virtual SpicePoint get_size() { SpicePoint pt = {_width, _height}; return pt;}

    int get_width() { return _width;}
    int get_height() { return _height;}
    int get_stride() { return _stride;}
    uint8_t* get_data() { return _data;}
    bool is_big_endian_bits();

protected:
    Format _format;
    int _width;
    int _height;
    int _stride;
    bool _top_bottom;
    uint8_t* _data;
};

#endif