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/* Copyright (C) 1993, 2000 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: zcolor1.c,v 1.6 2002/08/22 07:12:29 henrys Exp $ */
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/* Level 1 extended color operators */
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#include "ghost.h"
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#include "oper.h"
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#include "estack.h"
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#include "ialloc.h"
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#include "igstate.h"
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#include "iutil.h"
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#include "store.h"
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#include "gxfixed.h"
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#include "gxmatrix.h"
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#include "gzstate.h"
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#include "gxdevice.h"
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#include "gxcmap.h"
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#include "gscolor1.h"
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#include "gxcspace.h"
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#include "icolor.h"
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#include "iimage.h"
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/* - currentblackgeneration <proc> */
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private int
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zcurrentblackgeneration(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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push(1);
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*op = istate->black_generation;
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return 0;
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}
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/* - currentcolortransfer <redproc> <greenproc> <blueproc> <grayproc> */
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private int
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zcurrentcolortransfer(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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push(4);
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op[-3] = istate->transfer_procs.red;
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op[-2] = istate->transfer_procs.green;
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op[-1] = istate->transfer_procs.blue;
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*op = istate->transfer_procs.gray;
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return 0;
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}
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/* - currentundercolorremoval <proc> */
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private int
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zcurrentundercolorremoval(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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push(1);
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*op = istate->undercolor_removal;
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return 0;
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}
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/* <proc> setblackgeneration - */
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private int
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zsetblackgeneration(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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int code;
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check_proc(*op);
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check_ostack(zcolor_remap_one_ostack - 1);
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check_estack(1 + zcolor_remap_one_estack);
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code = gs_setblackgeneration_remap(igs, gs_mapped_transfer, false);
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if (code < 0)
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return code;
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istate->black_generation = *op;
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pop(1);
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push_op_estack(zcolor_remap_color);
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return zcolor_remap_one(i_ctx_p, &istate->black_generation,
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igs->black_generation, igs,
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zcolor_remap_one_finish);
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}
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/* <redproc> <greenproc> <blueproc> <grayproc> setcolortransfer - */
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private int
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zsetcolortransfer(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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int code;
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check_proc(op[-3]);
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check_proc(op[-2]);
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check_proc(op[-1]);
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check_proc(*op);
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check_ostack(zcolor_remap_one_ostack * 4 - 4);
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check_estack(1 + zcolor_remap_one_estack * 4);
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istate->transfer_procs.red = op[-3];
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istate->transfer_procs.green = op[-2];
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istate->transfer_procs.blue = op[-1];
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istate->transfer_procs.gray = *op;
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if ((code = gs_setcolortransfer_remap(igs,
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gs_mapped_transfer, gs_mapped_transfer,
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gs_mapped_transfer, gs_mapped_transfer,
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false)) < 0
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)
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return code;
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/* Use osp rather than op here, because zcolor_remap_one pushes. */
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pop(4);
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push_op_estack(zcolor_reset_transfer);
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if ((code = zcolor_remap_one(i_ctx_p,
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&istate->transfer_procs.red,
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igs->set_transfer.red, igs,
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zcolor_remap_one_finish)) < 0 ||
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(code = zcolor_remap_one(i_ctx_p,
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&istate->transfer_procs.green,
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igs->set_transfer.green, igs,
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zcolor_remap_one_finish)) < 0 ||
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(code = zcolor_remap_one(i_ctx_p,
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&istate->transfer_procs.blue,
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igs->set_transfer.blue, igs,
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zcolor_remap_one_finish)) < 0 ||
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(code = zcolor_remap_one(i_ctx_p, &istate->transfer_procs.gray,
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igs->set_transfer.gray, igs,
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zcolor_remap_one_finish)) < 0
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)
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return code;
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return o_push_estack;
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}
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/* <proc> setundercolorremoval - */
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private int
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zsetundercolorremoval(i_ctx_t *i_ctx_p)
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{
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os_ptr op = osp;
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int code;
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check_proc(*op);
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check_ostack(zcolor_remap_one_ostack - 1);
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check_estack(1 + zcolor_remap_one_estack);
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code = gs_setundercolorremoval_remap(igs, gs_mapped_transfer, false);
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if (code < 0)
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return code;
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istate->undercolor_removal = *op;
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pop(1);
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push_op_estack(zcolor_remap_color);
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return zcolor_remap_one(i_ctx_p, &istate->undercolor_removal,
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igs->undercolor_removal, igs,
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zcolor_remap_one_signed_finish);
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}
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/* ------ Initialization procedure ------ */
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const op_def zcolor1_op_defs[] =
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{
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{"0currentblackgeneration", zcurrentblackgeneration},
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{"0currentcolortransfer", zcurrentcolortransfer},
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{"0currentundercolorremoval", zcurrentundercolorremoval},
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{"1setblackgeneration", zsetblackgeneration},
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{"4setcolortransfer", zsetcolortransfer},
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{"1setundercolorremoval", zsetundercolorremoval},
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op_def_end(0)
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};
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