#ifndef LCDF_GIFX_H
#define LCDF_GIFX_H
#include <lcdfgif/gif.h>
#ifdef __cplusplus
extern "C" {
#endif

/* gifx.h - Functions to turn GIFs in memory into X Pixmaps.
   Copyright (C) 1997-2023 Eddie Kohler, ekohler@gmail.com
   This file is part of the LCDF GIF library.

   The LCDF GIF library is free software*. It is distributed under the GNU
   General Public License, version 2; you can copy, distribute, or
   alter it at will, as long as this notice is kept intact and this source
   code is made available. There is no warranty, express or implied. */

#include <X11/Xlib.h>

#define GIFX_COLORMAP_EXTENSION -107


typedef struct Gif_XContext Gif_XContext;
typedef struct Gif_XColormap Gif_XColormap;
typedef struct Gif_XFrame Gif_XFrame;

struct Gif_XContext {
    Display *display;
    int screen_number;
    Drawable drawable;
    Visual *visual;
    uint16_t depth;
    uint16_t ncolormap;
    Colormap colormap;

    uint16_t nclosest;
    Gif_Color *closest;

    int free_deleted_colormap_pixels;
    Gif_XColormap *xcolormap;

    GC image_gc;
    GC mask_gc;

    unsigned long transparent_pixel;
    unsigned long foreground_pixel;
    int refcount;
};

struct Gif_XFrame {
    Pixmap pixmap;
    int postdisposal;
    int user_data;
};

Gif_XContext *  Gif_NewXContext(Display *display, Window window);
Gif_XContext *  Gif_NewXContextFromVisual(Display *display, int screen_number,
                                Visual *visual, int depth, Colormap cmap);
void            Gif_DeleteXContext(Gif_XContext *gfx);

Pixmap          Gif_XImage(Gif_XContext *gfx, Gif_Stream *gfs, Gif_Image *gfi);
Pixmap          Gif_XImageColormap(Gif_XContext *gfx, Gif_Stream *gfs,
                                Gif_Colormap *gfcm, Gif_Image *gfi);
Pixmap          Gif_XSubImage(Gif_XContext *gfx, Gif_Stream *gfs,
                                Gif_Image *gfi, int l, int t, int w, int h);
Pixmap          Gif_XSubImageColormap(Gif_XContext *gfx,
                                Gif_Stream* gfs, Gif_Image *gfi,
                                Gif_Colormap* gfcm, int l, int t, int w, int h);

Pixmap          Gif_XMask(Gif_XContext *gfx, Gif_Stream *gfs, Gif_Image *gfi);
Pixmap          Gif_XSubMask(Gif_XContext* gfx, Gif_Stream* gfs, Gif_Image* gfi,
                                int l, int t, int w, int h);

Gif_XFrame *    Gif_NewXFrames(Gif_Stream *gfs);
void            Gif_DeleteXFrames(Gif_XContext *gfx, Gif_Stream *gfs,
                                Gif_XFrame *frames);
Pixmap          Gif_XNextImage(Gif_XContext *gfx, Gif_Stream *gfs, int i,
                                Gif_XFrame *frames);

int             Gif_XAllocateColors(Gif_XContext *gfx, Gif_Colormap *gfcm);
void            Gif_XDeallocateColors(Gif_XContext *gfx, Gif_Colormap *gfcm);
unsigned long * Gif_XClaimStreamColors(Gif_XContext *gfx, Gif_Stream *gfs,
                                int *np_store);


#ifdef __cplusplus
}
#endif
#endif