windowmaker-wl/wrlib/wstubs_no_x11.c

/* wstubs_no_x11.c - empty implementations for the X11 wraster public API.
 *
 * Compiled only when --disable-x11-wraster is configured.  The X11
 * conversion path source files (context.c, convert.c, convert_x11.c,
 * xpixmap.c, xutil.c, load_xpm.c) are excluded in that build; this
 * file provides the public-API symbols they would otherwise export
 * so consumer code that calls them (or references them but never
 * executes the call, like load.c's IM_XPM branch) links cleanly.
 *
 * Behaviour: every stub returns failure-neutral values (NULL, 0,
 * RERR_INTERNAL).  Calling them in pure-Wayland mode is silent and
 * non-crashing rather than an error abort, so applications that
 * branch on context->dpy correctly skip past these paths anyway.
 *
 * Raster graphics library
 *
 * Copyright (c) 2025 Window Maker Team
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 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
 *  Library General Public License for more details.
 */

#define WRASTER_NO_XLIB

#include <config.h>

#include <stdlib.h>

#include "wraster.h"

/* ------------------------------------------------------------------ */
/* Context (context.c)                                                 */
/* ------------------------------------------------------------------ */

RContext *RCreateContext(Display *dpy, int screen_number,
                         const RContextAttributes *attribs)
{
    (void)dpy; (void)screen_number; (void)attribs;
    RErrorCode = RERR_INTERNAL;
    return NULL;
}

void RDestroyContext(RContext *context)
{
    if (!context) return;
    if (context->attribs) free(context->attribs);
    if (context->colors)  free(context->colors);
    if (context->pixels)  free(context->pixels);
    free(context);
}

/* ------------------------------------------------------------------ */
/* Image conversion (convert.c, convert_x11.c)                         */
/* ------------------------------------------------------------------ */

int RConvertImage(RContext *context, RImage *image, Pixmap *pixmap)
{
    /* Use the backend vtable installed by RCreateContextWayland. */
    if (context && context->convert_image)
        return context->convert_image(context, image, pixmap);
    RErrorCode = RERR_INTERNAL;
    return 0;
}

int RConvertImageMask(RContext *context, RImage *image,
                      Pixmap *pixmap, Pixmap *mask, int threshold)
{
    if (context && context->convert_image_mask)
        return context->convert_image_mask(context, image, pixmap, mask, threshold);
    RErrorCode = RERR_INTERNAL;
    return 0;
}

Bool RGetClosestXColor(RContext *context, const RColor *color, XColor *retColor)
{
    (void)context; (void)color; (void)retColor;
    RErrorCode = RERR_INTERNAL;
    return 0;
}

/* ------------------------------------------------------------------ */
/* Drawable → RImage (xpixmap.c)                                       */
/* ------------------------------------------------------------------ */

RImage *RCreateImageFromDrawable(RContext *context, Drawable drawable, Pixmap mask)
{
    (void)context; (void)drawable; (void)mask;
    RErrorCode = RERR_INTERNAL;
    return NULL;
}

RImage *RCreateImageFromXImage(RContext *context, XImage *image, XImage *mask)
{
    (void)context; (void)image; (void)mask;
    RErrorCode = RERR_INTERNAL;
    return NULL;
}

/* ------------------------------------------------------------------ */
/* RXImage utilities (xutil.c)                                         */
/* ------------------------------------------------------------------ */

RXImage *RCreateXImage(RContext *context, int depth,
                       unsigned width, unsigned height)
{
    (void)context; (void)depth; (void)width; (void)height;
    RErrorCode = RERR_INTERNAL;
    return NULL;
}

RXImage *RGetXImage(RContext *context, Drawable d, int x, int y,
                    unsigned width, unsigned height)
{
    (void)context; (void)d; (void)x; (void)y; (void)width; (void)height;
    RErrorCode = RERR_INTERNAL;
    return NULL;
}

void RDestroyXImage(RContext *context, RXImage *ximage)
{
    (void)context;
    if (ximage) free(ximage);
}

void RPutXImage(RContext *context, Drawable d, GC gc, RXImage *ximage,
                int src_x, int src_y, int dest_x, int dest_y,
                unsigned width, unsigned height)
{
    (void)context; (void)d; (void)gc; (void)ximage;
    (void)src_x; (void)src_y; (void)dest_x; (void)dest_y;
    (void)width; (void)height;
}

/* ------------------------------------------------------------------ */
/* XPM loading (load_xpm.c)                                            */
/* ------------------------------------------------------------------ */

RImage *RGetImageFromXPMData(RContext *context, char **xpmData)
{
    (void)context; (void)xpmData;
    RErrorCode = RERR_BADFORMAT;
    return NULL;
}

RImage *RLoadXPM(RContext *context, const char *file)
{
    (void)context; (void)file;
    RErrorCode = RERR_BADFORMAT;
    return NULL;
}
void r_destroy_conversion_tables(void) { }