/* Copyright (C) 2001-2021 Artifex Software, Inc.

   All Rights Reserved.

   This software is provided AS-IS with no warranty, either express or

   implied.

   This software is distributed under license and may not be copied,

   modified or distributed except as expressly authorized under the terms

   of the license contained in the file LICENSE in this distribution.

   Refer to licensing information at http://www.artifex.com or contact

   Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,

   CA 94945, U.S.A., +1(415)492-9861, for further information.

*/

/* Painting operators */

#include "ghost.h"

#include "oper.h"

#include "gspaint.h"

#include "igstate.h"

#include "store.h"

#include "estack.h"

/* - fill - */

static int

zfill(i_ctx_t *i_ctx_p)

{

    return gs_fill(igs);

}

/* - eofill - */

static int

zeofill(i_ctx_t *i_ctx_p)

{

    return gs_eofill(igs);

}

/* - stroke - */

static int

zstroke(i_ctx_t *i_ctx_p)

{

    return gs_stroke(igs);

}

static int

fillstroke_cont(i_ctx_t *i_ctx_p)

{

    os_ptr op = osp;

    int restart, code;

    check_type(*op, t_integer);

    restart = (int)op->value.intval;

    code = gs_fillstroke(igs, &restart);

    if (code == gs_error_Remap_Color) {

        op->value.intval = restart;

        return code;

    }

    pop(1);

    return code;

}

static int

zfillstroke(i_ctx_t *i_ctx_p)

{

    os_ptr op = osp;

    push(1);

    make_int(op, 0);    /* 0 implies we are at fill color, need to swap first */

    push_op_estack(fillstroke_cont);

    return o_push_estack;

}

static int

eofillstroke_cont(i_ctx_t *i_ctx_p)

{

    os_ptr op = osp;

    int restart, code;

    check_type(*op, t_integer);

    restart = (int)op->value.intval;

    code = gs_eofillstroke(igs, &restart);

    if (code == gs_error_Remap_Color) {

        op->value.intval = restart;

        return code;

    }

    pop(1);

    return code;

}

static int

zeofillstroke(i_ctx_t *i_ctx_p)

{

    os_ptr op = osp;

    push(1);

    make_int(op, 0);

    push_op_estack(eofillstroke_cont);

    return o_push_estack;

}

/* ------ Non-standard operators ------ */

/* - .fillpage - */

static int

zfillpage(i_ctx_t *i_ctx_p)

{

    return gs_fillpage(igs);

}

/* <width> <height> <data> .imagepath - */

static int

zimagepath(i_ctx_t *i_ctx_p)

{

    os_ptr op = osp;

    int code;

    check_type(op[-2], t_integer);

    check_type(op[-1], t_integer);

    check_read_type(*op, t_string);

    if (r_size(op) < ((op[-2].value.intval + 7) >> 3) * op[-1].value.intval)

        return_error(gs_error_rangecheck);

    code = gs_imagepath(igs,

                        (int)op[-2].value.intval, (int)op[-1].value.intval,

                        op->value.const_bytes);

    if (code >= 0)

        pop(3);

    return code;

}

/* ------ Initialization procedure ------ */

const op_def zpaint_op_defs[] =

{

    {"0eofill", zeofill},

    {"0fill", zfill},

    {"0stroke", zstroke},

                /* Non-standard operators */

    {"0.fillpage", zfillpage},

    {"3.imagepath", zimagepath},

    {"0.eofillstroke", zeofillstroke},

    {"0.fillstroke", zfillstroke},

    {"0%eofillstroke_cont", eofillstroke_cont },

    {"0%fillstroke_cont", fillstroke_cont },

    op_def_end(0)

};