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/* Copyright (C) 1997, 1998, 1999 Aladdin Enterprises. All rights reserved.
This software is licensed to a single customer by Artifex Software Inc.
under the terms of a specific OEM agreement.
*/
/*$RCSfile$ $Revision$ */
/* Display PostScript extensions */
#include "ghost.h"
#include "oper.h"
#include "gsstate.h"
#include "gsdps.h"
#include "gsimage.h"
#include "gsiparm2.h"
#include "gxfixed.h" /* for gxpath.h */
#include "gxpath.h"
#include "btoken.h" /* for user_names_p */
#include "iddict.h"
#include "idparam.h"
#include "igstate.h"
#include "iimage2.h"
#include "iname.h"
#include "store.h"
/* Import the procedure for constructing user paths. */
extern int make_upath(P5(i_ctx_t *, ref *, const gs_state *, gx_path *, bool));
/* ------ Graphics state ------ */
/* <screen_index> <x> <y> .setscreenphase - */
private int
zsetscreenphase(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
int code;
long x, y;
check_type(op[-2], t_integer);
check_type(op[-1], t_integer);
check_type(*op, t_integer);
x = op[-1].value.intval;
y = op->value.intval;
if (x != (int)x || y != (int)y ||
op[-2].value.intval < -1 ||
op[-2].value.intval >= gs_color_select_count
)
return_error(e_rangecheck);
code = gs_setscreenphase(igs, (int)x, (int)y,
(gs_color_select_t) op[-2].value.intval);
if (code >= 0)
pop(3);
return code;
}
/* <screen_index> .currentscreenphase <x> <y> */
private int
zcurrentscreenphase(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gs_int_point phase;
int code;
check_type(*op, t_integer);
if (op->value.intval < -1 ||
op->value.intval >= gs_color_select_count
)
return_error(e_rangecheck);
code = gs_currentscreenphase(igs, &phase,
(gs_color_select_t)op->value.intval);
if (code < 0)
return code;
push(1);
make_int(op - 1, phase.x);
make_int(op, phase.y);
return 0;
}
/* ------ Device-source images ------ */
/* <dict> .image2 - */
private int
zimage2(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
int code;
check_type(*op, t_dictionary);
check_dict_read(*op);
{
gs_image2_t image;
ref *pDataSource;
gs_image2_t_init(&image);
if ((code = dict_matrix_param(op, "ImageMatrix",
&image.ImageMatrix)) < 0 ||
(code = dict_find_string(op, "DataSource", &pDataSource)) < 0 ||
(code = dict_float_param(op, "XOrigin", 0.0,
&image.XOrigin)) != 0 ||
(code = dict_float_param(op, "YOrigin", 0.0,
&image.YOrigin)) != 0 ||
(code = dict_float_param(op, "Width", 0.0,
&image.Width)) != 0 ||
image.Width <= 0 ||
(code = dict_float_param(op, "Height", 0.0,
&image.Height)) != 0 ||
image.Height <= 0 ||
(code = dict_bool_param(op, "PixelCopy", false,
&image.PixelCopy)) < 0
)
return (code < 0 ? code : gs_note_error(e_rangecheck));
check_stype(*pDataSource, st_igstate_obj);
image.DataSource = igstate_ptr(pDataSource);
{
ref *ignoref;
if (dict_find_string(op, "UnpaintedPath", &ignoref) > 0) {
check_dict_write(*op);
image.UnpaintedPath = gx_path_alloc(imemory,
".image2 UnpaintedPath");
if (image.UnpaintedPath == 0)
return_error(e_VMerror);
} else
image.UnpaintedPath = 0;
}
code = process_non_source_image(i_ctx_p,
(const gs_image_common_t *)&image,
".image2");
if (image.UnpaintedPath) {
ref rupath;
if (code < 0)
return code;
if (gx_path_is_null(image.UnpaintedPath))
make_null(&rupath);
else
code = make_upath(i_ctx_p, &rupath, igs, image.UnpaintedPath,
false);
gx_path_free(image.UnpaintedPath, ".image2 UnpaintedPath");
if (code < 0)
return code;
code = idict_put_string(op, "UnpaintedPath", &rupath);
}
}
if (code >= 0)
pop(1);
return code;
}
/* ------ View clipping ------ */
/* - viewclip - */
private int
zviewclip(i_ctx_t *i_ctx_p)
{
return gs_viewclip(igs);
}
/* - eoviewclip - */
private int
zeoviewclip(i_ctx_t *i_ctx_p)
{
return gs_eoviewclip(igs);
}
/* - initviewclip - */
private int
zinitviewclip(i_ctx_t *i_ctx_p)
{
return gs_initviewclip(igs);
}
/* - viewclippath - */
private int
zviewclippath(i_ctx_t *i_ctx_p)
{
return gs_viewclippath(igs);
}
/* ------ User names ------ */
/* <index> <name> defineusername - */
private int
zdefineusername(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
ref uname;
check_int_ltu(op[-1], max_array_size);
check_type(*op, t_name);
if (array_get(user_names_p, op[-1].value.intval, &uname) >= 0) {
switch (r_type(&uname)) {
case t_null:
break;
case t_name:
if (name_eq(&uname, op))
goto ret;
/* falls through */
default:
return_error(e_invalidaccess);
}
} else { /* Expand the array. */
ref new_array;
uint old_size = r_size(user_names_p);
uint new_size = (uint) op[-1].value.intval + 1;
if (new_size < 100)
new_size = 100;
else if (new_size > max_array_size / 2)
new_size = max_array_size;
else if (new_size >> 1 < old_size)
new_size = (old_size > max_array_size / 2 ? max_array_size :
old_size << 1);
else
new_size <<= 1;
/* The user name array is always allocated in system VM, */
/* because it must be immune to save/restore. */
{
uint save_space = icurrent_space;
int code;
ialloc_set_space(idmemory, avm_system);
code = ialloc_ref_array(&new_array, a_all, new_size,
"defineusername(new)");
if (code < 0) {
ialloc_set_space(idmemory, save_space);
return code;
}
refcpy_to_new(new_array.value.refs, user_names_p->value.refs,
old_size, idmemory);
refset_null(new_array.value.refs + old_size,
new_size - old_size);
ifree_ref_array(user_names_p, "defineusername(old)");
ialloc_set_space(idmemory, save_space);
}
ref_assign(user_names_p, &new_array);
}
ref_assign(user_names_p->value.refs + op[-1].value.intval, op);
ret:pop(2);
return 0;
}
/* ------ Initialization procedure ------ */
const op_def zdps_op_defs[] =
{
/* Graphics state */
{"1.currentscreenphase", zcurrentscreenphase},
{"3.setscreenphase", zsetscreenphase},
/* Device-source images */
{"1.image2", zimage2},
/* View clipping */
{"0eoviewclip", zeoviewclip},
{"0initviewclip", zinitviewclip},
{"0viewclip", zviewclip},
{"0viewclippath", zviewclippath},
/* User names */
{"2defineusername", zdefineusername},
op_def_end(0)
};
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