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- /* Copyright (C) 1997, 2000 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: gscolor3.c,v 1.4 2000/09/19 19:00:26 lpd Exp $ */
- /* "Operators" for LanguageLevel 3 color facilities */
- #include "gx.h"
- #include "gserrors.h"
- #include "gsmatrix.h" /* for gscolor2.h */
- #include "gscolor3.h"
- #include "gsptype2.h"
- #include "gxcolor2.h" /* for gxpcolor.h */
- #include "gxcspace.h" /* for gs_cspace_init */
- #include "gxpcolor.h" /* for gs_color_space_type_Pattern */
- #include "gzstate.h"
- #include "gzpath.h"
- #include "gxpaint.h" /* (requires gx_path) */
- #include "gxshade.h"
-
- /* setsmoothness */
- int
- gs_setsmoothness(gs_state * pgs, floatp smoothness)
- {
- pgs->smoothness =
- (smoothness < 0 ? 0 : smoothness > 1 ? 1 : smoothness);
- return 0;
- }
-
- /* currentsmoothness */
- float
- gs_currentsmoothness(const gs_state * pgs)
- {
- return pgs->smoothness;
- }
-
- /* shfill */
- int
- gs_shfill(gs_state * pgs, const gs_shading_t * psh)
- {
- /*
- * shfill is equivalent to filling the current clipping path (or, if
- * clipping, its bounding box) with the shading, disregarding the
- * Background if any. In order to produce reasonable high-level output,
- * we must actually implement this by calling gs_fill rather than
- * gs_shading_fill_path. However, filling with a shading pattern does
- * paint the Background, so if necessary, we construct a copy of the
- * shading with Background removed.
- */
- gs_pattern2_template_t pat;
- gx_path cpath;
- gs_matrix imat;
- gs_client_color cc;
- gs_color_space cs;
- gx_device_color devc;
- int code;
-
- gs_pattern2_init(&pat);
- pat.Shading = psh;
- gs_make_identity(&imat);
- code = gs_make_pattern(&cc, (gs_pattern_template_t *)&pat, &imat, pgs,
- pgs->memory);
- if (code < 0)
- return code;
- gs_cspace_init(&cs, &gs_color_space_type_Pattern, NULL);
- cs.params.pattern.has_base_space = false;
- code = cs.type->remap_color(&cc, &cs, &devc, (gs_imager_state *)pgs,
- pgs->device, gs_color_select_texture);
- if (code >= 0) {
- gx_path_init_local(&cpath, pgs->memory);
- code = gx_cpath_to_path(pgs->clip_path, &cpath);
- if (code >= 0)
- code = gx_fill_path(&cpath, &devc, pgs, gx_rule_winding_number,
- fixed_0, fixed_0);
- gx_path_free(&cpath, "gs_shfill");
- }
- gs_pattern_reference(&cc, -1);
- return code;
- }
-