/* 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;
code = gs_pattern2_set_shfill(&cc);
if (code < 0)
return code;
gs_cspace_init(&cs, &gs_color_space_type_Pattern, pgs->memory, false);
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;
}
/* shfill */
int
gs_shfill(gs_gstate * 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 implement this by calling gs_fill_path.
*/
gs_pattern2_template_t pat;
gs_matrix imat;
gs_client_color cc;
gs_color_space *pcs;
gx_device_color devc;
int code;
/* Must install the shading color space
to allow check_DeviceN_component_names initialize
the color component map.
*/
/* Don't bother with saving the old color space, color,
and cie_joint_caches,
because .shfill is always called within gsave-grestore -
see gs/lib . */
code = gs_setcolorspace(pgs, psh->params.ColorSpace);
if (code < 0)
return 0;
if (psh->params.cie_joint_caches != NULL) {
pgs->cie_joint_caches = psh->params.cie_joint_caches;
rc_increment(pgs->cie_joint_caches);
}
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;
code = gs_pattern2_set_shfill(&cc);
if (code < 0)
return code;
pcs = gs_cspace_alloc(pgs->memory, &gs_color_space_type_Pattern);
if (pcs == NULL)
return_error(gs_error_VMerror);
pcs->params.pattern.has_base_space = false;
code = pcs->type->remap_color(&cc, pcs, &devc, pgs,
pgs->device, gs_color_select_texture);
if (code >= 0) {
gx_device *dev = pgs->device;
bool need_path = !dev_proc(dev, dev_spec_op)(dev,
gxdso_pattern_shfill_doesnt_need_path, NULL, 0);
if (need_path) {
gx_path cpath;
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,
pgs->fill_adjust.x, pgs->fill_adjust.y);
gx_path_free(&cpath, "gs_shfill");
} else
code = gx_fill_path(NULL, &devc, pgs, gx_rule_winding_number,
pgs->fill_adjust.x, pgs->fill_adjust.y);
}
rc_decrement_cs(pcs, "gs_shfill");
gs_pattern_reference(&cc, -1);
return code;
}
