Issue 1097 (#1148)

* [CONSIDER MERGING] Clarification and typo fixed in DRC doc.

* Implemented #1097 (discourage file compression, use CBLOCK)

* A warning is printed if file compression is enabled on OASIS
* A hint is present in the writer options
* CBLOCK is default (with fresh config) and for buddy tools
  (use --cblock=false to disable it)

* Strict mode is default too.

* Updated tests
This commit is contained in:
Matthias Köfferlein 2022-09-05 23:34:53 +02:00 committed by GitHub
parent 9ebb923d83
commit 390cac87d3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 317 additions and 143 deletions

View File

@ -30,34 +30,43 @@ namespace bd
{
GenericWriterOptions::GenericWriterOptions ()
: m_scale_factor (1.0),
m_dbu (0.0),
m_dont_write_empty_cells (false),
m_keep_instances (false),
m_write_context_info (true),
m_gds2_max_vertex_count (8000),
m_gds2_no_zero_length_paths (false),
m_gds2_multi_xy_records (false),
m_gds2_resolve_skew_arrays (false),
m_gds2_max_cellname_length (32000),
m_gds2_libname ("LIB"),
m_gds2_user_units (1.0),
m_gds2_write_timestamps (true),
m_gds2_write_cell_properties (false),
m_gds2_write_file_properties (false),
m_oasis_compression_level (2),
m_oasis_write_cblocks (false),
m_oasis_strict_mode (false),
m_oasis_recompress (false),
m_oasis_permissive (false),
m_oasis_write_std_properties (1),
m_oasis_subst_char ("*"),
m_cif_dummy_calls (false),
m_cif_blank_separator (false),
m_magic_lambda (1.0),
m_dxf_polygon_mode (0)
: m_scale_factor (1.0)
{
// .. nothing yet ..
db::SaveLayoutOptions save_options;
m_dbu = save_options.get_option_by_name ("dbu").to_double ();
m_dont_write_empty_cells = save_options.get_option_by_name ("no_empty_cells").to_bool ();
m_keep_instances = save_options.get_option_by_name ("keep_instances").to_bool ();
m_write_context_info = save_options.get_option_by_name ("write_context_info").to_bool ();
m_gds2_max_vertex_count = save_options.get_option_by_name ("gds2_max_vertex_count").to_uint ();
m_gds2_no_zero_length_paths = save_options.get_option_by_name ("gds2_no_zero_length_paths").to_bool ();
m_gds2_multi_xy_records = save_options.get_option_by_name ("gds2_multi_xy_records").to_bool ();
m_gds2_resolve_skew_arrays = save_options.get_option_by_name ("gds2_resolve_skew_arrays").to_bool ();
m_gds2_max_cellname_length = save_options.get_option_by_name ("gds2_max_cellname_length").to_uint ();
m_gds2_libname = save_options.get_option_by_name ("gds2_libname").to_string ();
m_gds2_user_units = save_options.get_option_by_name ("gds2_user_units").to_double ();
m_gds2_write_timestamps = save_options.get_option_by_name ("gds2_write_timestamps").to_bool ();
m_gds2_write_cell_properties = save_options.get_option_by_name ("gds2_write_cell_properties").to_bool ();
m_gds2_write_file_properties = save_options.get_option_by_name ("gds2_write_file_properties").to_bool ();
m_oasis_compression_level = save_options.get_option_by_name ("oasis_compression_level").to_int ();
m_oasis_write_cblocks = save_options.get_option_by_name ("oasis_write_cblocks").to_bool ();
m_oasis_strict_mode = save_options.get_option_by_name ("oasis_strict_mode").to_bool ();
m_oasis_recompress = save_options.get_option_by_name ("oasis_recompress").to_bool ();
m_oasis_permissive = save_options.get_option_by_name ("oasis_permissive").to_bool ();
m_oasis_write_std_properties = save_options.get_option_by_name ("oasis_write_std_properties").to_int ();
m_oasis_subst_char = save_options.get_option_by_name ("oasis_substitution_char").to_string ();
m_cif_dummy_calls = save_options.get_option_by_name ("cif_dummy_calls").to_bool ();
m_cif_blank_separator = save_options.get_option_by_name ("cif_blank_separator").to_bool ();
// The default options do not specify a lambda, but we prefer having a default here:
// m_magic_lambda = save_options.get_option_by_name ("mag_lambda").to_double ();
m_magic_lambda = 1.0;
m_dxf_polygon_mode = save_options.get_option_by_name ("dxf_polygon_mode").to_int ();
}
const std::string GenericWriterOptions::gds2_format_name = "GDS2";
@ -210,10 +219,14 @@ GenericWriterOptions::add_options (tl::CommandLineOptions &cmd, const std::strin
"* 2++ - enhanced shape array search algorithm using 2nd and further neighbor distances as well\n"
)
<< tl::arg (group +
"-ob|--cblocks", &m_oasis_write_cblocks, "Uses CBLOCK compression"
"-ob|--cblocks", &m_oasis_write_cblocks, "Uses CBLOCK compression",
"Please note that since version 0.27.12, CBLOCK compression is enabled by default. If you do not want "
"CBLOCK compression, use '--cblocks=false'."
)
<< tl::arg (group +
"-ot|--strict-mode", &m_oasis_strict_mode, "Uses strict mode"
"-ot|--strict-mode", &m_oasis_strict_mode, "Uses strict mode",
"Please note that since version 0.27.12, strict mode is enabled by default. If you do not want "
"strict mode, use '--strict-mode=false'."
)
<< tl::arg (group +
"#--recompress", &m_oasis_recompress, "Compresses shape arrays again",

View File

@ -58,9 +58,9 @@ TEST(1)
"--write-cell-properties",
"--write-file-properties",
// OASIS
"-ob",
"-ob=false",
"-ok=9",
"-ot",
"-ot=false",
"--recompress",
"--subst-char=XY",
"--write-std-properties=2"
@ -85,9 +85,9 @@ TEST(1)
EXPECT_EQ (tl::to_string (stream_opt.get_option_by_name ("gds2_user_units").to_double ()), "1");
EXPECT_EQ (stream_opt.get_option_by_name ("gds2_write_cell_properties").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("gds2_write_file_properties").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_cblocks").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_cblocks").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_compression_level").to_int (), 2);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_strict_mode").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_strict_mode").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_recompress").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_substitution_char").to_string (), "*");
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_std_properties_ext").to_int (), 1);
@ -110,9 +110,9 @@ TEST(1)
EXPECT_EQ (tl::to_string (stream_opt.get_option_by_name ("gds2_user_units").to_double ()), "2.5");
EXPECT_EQ (stream_opt.get_option_by_name ("gds2_write_cell_properties").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("gds2_write_file_properties").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_cblocks").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_cblocks").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_compression_level").to_int (), 9);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_strict_mode").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_strict_mode").to_bool (), false);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_recompress").to_bool (), true);
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_substitution_char").to_string (), "X");
EXPECT_EQ (stream_opt.get_option_by_name ("oasis_write_std_properties_ext").to_int (), 2);

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@ -101,7 +101,7 @@ public:
* @brief The constructor
*/
OASISWriterOptions ()
: compression_level (2), write_cblocks (false), strict_mode (false), recompress (false), permissive (false), write_std_properties (1), subst_char ("*")
: compression_level (2), write_cblocks (true), strict_mode (true), recompress (false), permissive (false), write_std_properties (1), subst_char ("*")
{
// .. nothing yet ..
}

View File

@ -1176,6 +1176,11 @@ OASISWriter::write (db::Layout &layout, tl::OutputStream &stream, const db::Save
m_options = options.get_options<OASISWriterOptions> ();
mp_stream = &stream;
if (stream.is_compressing ()) {
std::string msg = tl::to_string (tr ("File compression is discouraged in OASIS, please use CBLOCK compression"));
tl::warn << msg;
}
double dbu = (options.dbu () == 0.0) ? layout.dbu () : options.dbu ();
m_sf = options.scale_factor () * (layout.dbu () / dbu);
if (fabs (m_sf - 1.0) < 1e-9) {

View File

@ -6,8 +6,8 @@
<rect>
<x>0</x>
<y>0</y>
<width>590</width>
<height>248</height>
<width>633</width>
<height>338</height>
</rect>
</property>
<property name="windowTitle">
@ -74,46 +74,35 @@
<property name="spacing">
<number>6</number>
</property>
<item row="4" column="2" colspan="3">
<widget class="QComboBox" name="std_prop_mode">
<property name="sizePolicy">
<sizepolicy hsizetype="Fixed" vsizetype="Fixed">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<item>
<property name="text">
<string>No standard properties</string>
</property>
</item>
<item>
<property name="text">
<string>Global standard properties</string>
</property>
</item>
<item>
<property name="text">
<string>Global + per-cell bounding boxes</string>
</property>
</item>
</widget>
</item>
<item row="3" column="2" colspan="3">
<widget class="QCheckBox" name="strict_mode">
<item row="1" column="3">
<widget class="QLabel" name="label_2">
<property name="text">
<string>Write strict-mode OASIS files</string>
<string/>
</property>
</widget>
</item>
<item row="3" column="0">
<item row="5" column="0">
<widget class="QLabel" name="label_6">
<property name="text">
<string>Strict mode</string>
</property>
</widget>
</item>
<item row="5" column="2" colspan="3">
<item row="7" column="0">
<widget class="QLabel" name="label_9">
<property name="text">
<string>Standard properties</string>
</property>
</widget>
</item>
<item row="8" column="0">
<widget class="QLabel" name="label_7">
<property name="text">
<string>Substitution character</string>
</property>
</widget>
</item>
<item row="8" column="2" colspan="3">
<widget class="QFrame" name="frame_2">
<property name="frameShape">
<enum>QFrame::NoFrame</enum>
@ -169,17 +158,86 @@
</layout>
</widget>
</item>
<item row="4" column="0">
<widget class="QLabel" name="label_9">
<item row="1" column="2">
<widget class="QLabel" name="label_3">
<property name="sizePolicy">
<sizepolicy hsizetype="Minimum" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="text">
<string>Standard properties</string>
<string>0 (low)</string>
</property>
</widget>
</item>
<item row="5" column="0">
<widget class="QLabel" name="label_7">
<item row="7" column="2" colspan="3">
<widget class="QComboBox" name="std_prop_mode">
<property name="sizePolicy">
<sizepolicy hsizetype="Fixed" vsizetype="Fixed">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<item>
<property name="text">
<string>No standard properties</string>
</property>
</item>
<item>
<property name="text">
<string>Global standard properties</string>
</property>
</item>
<item>
<property name="text">
<string>Global + per-cell bounding boxes</string>
</property>
</item>
</widget>
</item>
<item row="5" column="2" colspan="3">
<widget class="QCheckBox" name="strict_mode">
<property name="text">
<string>Substitution character</string>
<string>Write strict-mode OASIS files</string>
</property>
</widget>
</item>
<item row="2" column="2" colspan="3">
<widget class="QCheckBox" name="write_cblocks">
<property name="text">
<string>Use CBLOCK compression for each cell (RFC1951)</string>
</property>
</widget>
</item>
<item row="9" column="2" colspan="3">
<widget class="QCheckBox" name="permissive">
<property name="text">
<string>Don't fail on paths with odd width and other odd shapes</string>
</property>
</widget>
</item>
<item row="0" column="0" rowspan="2">
<widget class="QLabel" name="label">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="text">
<string>Compaction level
(repetition detection)</string>
</property>
<property name="alignment">
<set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
</property>
</widget>
</item>
<item row="9" column="0">
<widget class="QLabel" name="label_10">
<property name="text">
<string>Permissive mode</string>
</property>
</widget>
</item>
@ -199,17 +257,54 @@
</property>
</spacer>
</item>
<item row="1" column="2">
<widget class="QLabel" name="label_3">
<property name="sizePolicy">
<sizepolicy hsizetype="Minimum" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
<item row="3" column="2" colspan="3">
<widget class="QFrame" name="cblock_warning_frame">
<property name="frameShape">
<enum>QFrame::NoFrame</enum>
</property>
<property name="text">
<string>0 (low)</string>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
<layout class="QHBoxLayout" name="horizontalLayout">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QLabel" name="label_12">
<property name="text">
<string/>
</property>
<property name="pixmap">
<pixmap resource="../../../../lay/lay/layResources.qrc">:/warn.png</pixmap>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label_11">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>1</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="text">
<string>File compression - i.e. &quot;.gz&quot; - is discouraged in OASIS, please consider using CBLOCK compression</string>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item row="0" column="2" colspan="3">
@ -234,13 +329,6 @@
</property>
</widget>
</item>
<item row="1" column="3">
<widget class="QLabel" name="label_2">
<property name="text">
<string/>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="label_5">
<property name="text">
@ -248,30 +336,6 @@
</property>
</widget>
</item>
<item row="0" column="0" rowspan="2">
<widget class="QLabel" name="label">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="text">
<string>Compaction level
(repetition detection)</string>
</property>
<property name="alignment">
<set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
</property>
</widget>
</item>
<item row="2" column="2" colspan="3">
<widget class="QCheckBox" name="write_cblocks">
<property name="text">
<string>Use CBLOCK compression for each cell (RFC1951)</string>
</property>
</widget>
</item>
<item row="1" column="4">
<widget class="QLabel" name="label_4">
<property name="sizePolicy">
@ -289,17 +353,53 @@
</widget>
</item>
<item row="6" column="2" colspan="3">
<widget class="QCheckBox" name="permissive">
<property name="text">
<string>Don't fail on paths with odd width and other odd shapes</string>
<widget class="QFrame" name="strict_mode_warning_frame">
<property name="frameShape">
<enum>QFrame::NoFrame</enum>
</property>
</widget>
</item>
<item row="6" column="0">
<widget class="QLabel" name="label_10">
<property name="text">
<string>Permissive mode</string>
<property name="frameShadow">
<enum>QFrame::Raised</enum>
</property>
<layout class="QHBoxLayout" name="horizontalLayout_2">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QLabel" name="label_13">
<property name="text">
<string/>
</property>
<property name="pixmap">
<pixmap resource="../../../../lay/lay/layResources.qrc">:/warn.png</pixmap>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="label_14">
<property name="sizePolicy">
<sizepolicy hsizetype="Preferred" vsizetype="Preferred">
<horstretch>1</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="text">
<string>Strict mode is recommended as strict mode OASIS files can be read more efficiently by some readers</string>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
</item>
</layout>
</widget>
</item>
</layout>
@ -329,6 +429,8 @@
<tabstop>strict_mode</tabstop>
<tabstop>subst_char</tabstop>
</tabstops>
<resources/>
<resources>
<include location="../../../../lay/lay/layResources.qrc"/>
</resources>
<connections/>
</ui>

View File

@ -24,9 +24,7 @@
#include "dbOASIS.h"
#include "dbOASISWriter.h"
#include "dbSaveLayoutOptions.h"
#include "layStream.h"
#include "ui_OASISWriterOptionPage.h"
#include "layOASISWriterPlugin.h"
#include <QFrame>
@ -36,25 +34,14 @@ namespace lay
// ---------------------------------------------------------------
// OASISWriterOptionPage definition and implementation
class OASISWriterOptionPage
: public StreamWriterOptionsPage
{
public:
OASISWriterOptionPage (QWidget *parent);
~OASISWriterOptionPage ();
void setup (const db::FormatSpecificWriterOptions *options, const db::Technology *tech);
void commit (db::FormatSpecificWriterOptions *options, const db::Technology *tech, bool gzip);
private:
Ui::OASISWriterOptionPage *mp_ui;
};
OASISWriterOptionPage::OASISWriterOptionPage (QWidget *parent)
: StreamWriterOptionsPage (parent)
{
mp_ui = new Ui::OASISWriterOptionPage ();
mp_ui->setupUi (this);
connect (mp_ui->write_cblocks, SIGNAL (clicked(bool)), this, SLOT (flags_changed()));
connect (mp_ui->strict_mode, SIGNAL (clicked(bool)), this, SLOT (flags_changed()));
}
OASISWriterOptionPage::~OASISWriterOptionPage ()
@ -69,13 +56,22 @@ OASISWriterOptionPage::setup (const db::FormatSpecificWriterOptions *o, const db
if (options) {
mp_ui->compression_slider->setValue (options->compression_level);
mp_ui->write_cblocks->setChecked (options->write_cblocks);
mp_ui->cblock_warning_frame->setEnabled (! options->write_cblocks);
mp_ui->strict_mode->setChecked (options->strict_mode);
mp_ui->strict_mode_warning_frame->setEnabled (! options->strict_mode);
mp_ui->std_prop_mode->setCurrentIndex (options->write_std_properties);
mp_ui->subst_char->setText (tl::to_qstring (options->subst_char));
mp_ui->permissive->setChecked (options->permissive);
}
}
void
OASISWriterOptionPage::flags_changed ()
{
mp_ui->cblock_warning_frame->setEnabled (! mp_ui->write_cblocks->isChecked ());
mp_ui->strict_mode_warning_frame->setEnabled (! mp_ui->strict_mode->isChecked ());
}
void
OASISWriterOptionPage::commit (db::FormatSpecificWriterOptions *o, const db::Technology * /*tech*/, bool gzip)
{

View File

@ -24,10 +24,30 @@
#ifndef HDR_layOASISWriterPlugin_h
#define HDR_layOASISWriterPlugin_h
#include "layStream.h"
#include "ui_OASISWriterOptionPage.h"
namespace lay
{
// .. nothing yet (but needed for MOC) ..
class OASISWriterOptionPage
: public StreamWriterOptionsPage
{
Q_OBJECT
public:
OASISWriterOptionPage (QWidget *parent);
~OASISWriterOptionPage ();
void setup (const db::FormatSpecificWriterOptions *options, const db::Technology *tech);
void commit (db::FormatSpecificWriterOptions *options, const db::Technology *tech, bool gzip);
public slots:
void flags_changed ();
private:
Ui::OASISWriterOptionPage *mp_ui;
};
}

View File

@ -57,6 +57,10 @@ void run_test (tl::TestBase *_this, const char *file, bool scaling_test, int com
tl::OutputStream stream (tmp_file);
db::OASISWriter writer;
db::SaveLayoutOptions options;
db::OASISWriterOptions oasis_options;
oasis_options.write_cblocks = false;
oasis_options.strict_mode = false;
options.set_options (oasis_options);
writer.write (layout, stream, options);
}
@ -158,6 +162,7 @@ void run_test (tl::TestBase *_this, const char *file, bool scaling_test, int com
db::OASISWriter writer;
db::SaveLayoutOptions options;
db::OASISWriterOptions oasis_options;
oasis_options.write_cblocks = false;
oasis_options.strict_mode = false;
oasis_options.write_std_properties = 2;
options.set_options (oasis_options);
@ -557,6 +562,7 @@ TEST(100)
{
tl::OutputStream out (tmp_file);
db::SaveLayoutOptions options;
options.set_option_by_name ("oasis_strict_mode", false);
options.set_format ("OASIS");
db::Writer writer (options);
writer.write (g, out);
@ -1225,6 +1231,7 @@ TEST(115)
{
tl::OutputStream out (tmp_file);
db::SaveLayoutOptions options;
options.set_option_by_name ("oasis_strict_mode", false);
options.set_format ("OASIS");
db::Writer writer (options);
writer.write (g, out);
@ -1302,6 +1309,7 @@ TEST(116)
{
tl::OutputStream out (tmp_file);
db::SaveLayoutOptions write_options;
write_options.set_option_by_name ("oasis_strict_mode", false);
write_options.set_format ("OASIS");
db::Writer writer (write_options);
writer.write (g, out);
@ -1354,6 +1362,7 @@ TEST(116)
write_options.set_format ("OASIS");
db::OASISWriterOptions oas_write_options;
oas_write_options.write_std_properties = 0;
oas_write_options.strict_mode = false;
write_options.set_options (oas_write_options);
db::Writer writer (write_options);
writer.write (g, out);
@ -1403,6 +1412,7 @@ TEST(116)
write_options.set_format ("OASIS");
db::OASISWriterOptions oas_write_options;
oas_write_options.write_std_properties = 2;
oas_write_options.strict_mode = false;
write_options.set_options (oas_write_options);
db::Writer writer (write_options);
writer.write (g, out);
@ -1462,6 +1472,7 @@ TEST(116)
db::OASISWriterOptions oas_write_options;
oas_write_options.write_std_properties = 2;
oas_write_options.strict_mode = true;
oas_write_options.write_cblocks = false;
write_options.set_options (oas_write_options);
db::Writer writer (write_options);
writer.write (g, out);
@ -1522,6 +1533,7 @@ TEST(116)
tl::OutputStream out (tmp_file);
db::SaveLayoutOptions write_options;
write_options.set_format ("OASIS");
write_options.set_option_by_name ("oasis_strict_mode", false);
db::Writer writer (write_options);
writer.write (g, out);
}
@ -1572,6 +1584,7 @@ TEST(116)
db::SaveLayoutOptions write_options;
write_options.select_cell (c2.cell_index ());
write_options.set_format ("OASIS");
write_options.set_option_by_name ("oasis_strict_mode", false);
db::Writer writer (write_options);
writer.write (g, out);
}

View File

@ -726,6 +726,14 @@ public:
return false;
}
/**
* @brief Returns a value indicating whether that stream is compressing
*/
virtual bool is_compressing () const
{
return false;
}
/**
* @brief Rejects the output - for delegates supporting unrolling, this means the original file is restored
*/
@ -972,6 +980,11 @@ protected:
*/
virtual void seek_file (size_t /*s*/) { }
/**
* @brief Returns a value indicating whether this steam is compressing
*/
virtual bool is_compressing () const { return true; }
private:
// No copying
OutputZLibFile (const OutputZLibFile &);
@ -1244,6 +1257,14 @@ public:
}
}
/**
* @brief Returns a value indicating whether that stream is compressing
*/
bool is_compressing () const
{
return mp_delegate != 0 && mp_delegate->is_compressing ();
}
/**
* @brief Returns a value indicating whether that stream supports seek
*/

View File

@ -1122,7 +1122,11 @@ class DBLayoutTest(unittest.TestCase):
shape.set_property("42", "the answer")
ly.write(file_gds)
ly.write(file_oas)
opt = pya.SaveLayoutOptions()
opt.format = "OASIS"
opt.oasis_strict_mode = False
ly.write(file_oas, opt)
ly2 = pya.Layout()
ly2.read(file_gds)