drawinglayer/source/tools/emfphelperdata.cxx         |   27 ++++++++---------
 emfio/qa/cppunit/emf/EmfImportTest.cxx               |   30 +++++++++++++++++++
 emfio/qa/cppunit/emf/data/TestEmfPlusDrawBeziers.emf |binary
 3 files changed, 44 insertions(+), 13 deletions(-)

New commits:
commit b1ed265975407aea9eda568049be4d68301276af
Author:     Bartosz Kosiorek <gan...@poczta.onet.pl>
AuthorDate: Sun Apr 23 01:37:20 2023 +0200
Commit:     Xisco Fauli <xiscofa...@libreoffice.org>
CommitDate: Wed Apr 26 13:24:58 2023 +0200

    tdf#154789 EMF+ Performance boost of the EmfPlusRecordTypeDrawBeziers
    
    There is several benefits of such performance optimization:
     1. We are drawing single curve instead of hundreds of small curves.
        In the loop we are creating single Polygon and outside
        of the loop we are invoking EMFPPlusDrawPolygon drawing method only
        once. As https://bugs.documentfoundation.org/attachment.cgi?id=186725
        image is using single EmfPlusRecordTypeDrawBeziers EMF+ record with
        hundreds of curves, with using single EMFPPlusDrawPolygon call,
        there is no lnger need for individual line creation (e.g. line
        color, weight, line caps, line joints, line dashes, etc.)
    
        - The PDF export performance without optimizations of the 
https://bugs.documentfoundation.org/attachment.cgi?id=186725:
    
            time ./instdir/program/soffice --headless --convert-to 
"pdf:writer_pdf_Export" --outdir ~ ~/Pobrane/problem.docx
            real 24m18,471s
            user 2m56,004s
            sys 1m37,816
    
        - The PDF export performance with optimizations:
    
            real 0m37,527s
            user 0m37,004s
            sys 0m0,531s
    
        - With Libreoffice 7.5.2 from Ubuntu 22.04, the conversion was
        crashed.
    
     2. The PDF export for document: 
https://bugs.documentfoundation.org/attachment.cgi?id=186725
        was not working correctly for me. The original image is containing
        chart. Without optimization, the exported chart was empty.
        Current export is working correctly, and graph is visible.
    
     3. The standard opening of the document from 
https://bugs.documentfoundation.org/attachment.cgi?id=186725
        is now much faster. The zooming in, move image operations are also
        noticible faster.
    
     4. Implementation is according to [MS-EMFPLUS] documentation of the
        EmfPlusDrawBeziers, which states:
        "The ending coordinate of one Bezier curve is the starting coordinate 
of the
    next. The control points are used for producing the Bezier effect."
    
    Change-Id: Ic77d4c20a462587bb5da4a4df757e30c5ca04fc9
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/150821
    Tested-by: Jenkins
    Reviewed-by: Noel Grandin <noel.gran...@collabora.co.uk>
    Reviewed-by: Bartosz Kosiorek <gan...@poczta.onet.pl>
    (cherry picked from commit ce008fa9d8f2752bdfeaeff763aafc774a4b4fb2)
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/150788
    Reviewed-by: Xisco Fauli <xiscofa...@libreoffice.org>
    (cherry picked from commit 1328e2b7eb5251162834d7c0f953c6334686e95e)
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/150911
    Tested-by: Xisco Fauli <xiscofa...@libreoffice.org>

diff --git a/drawinglayer/source/tools/emfphelperdata.cxx 
b/drawinglayer/source/tools/emfphelperdata.cxx
index b8a3abb2bac1..94c4c32f026f 100644
--- a/drawinglayer/source/tools/emfphelperdata.cxx
+++ b/drawinglayer/source/tools/emfphelperdata.cxx
@@ -1345,11 +1345,15 @@ namespace emfplushelper
                         rMS.ReadUInt32(aCount);
                         SAL_INFO("drawinglayer.emf", "EMF+\t DrawBeziers slot: 
" << (flags & 0xff));
                         SAL_INFO("drawinglayer.emf", "EMF+\t Number of points: 
" << aCount);
-                        SAL_WARN_IF((aCount - 1) % 3 != 0, "drawinglayer.emf", 
"EMF+\t Bezier Draw not support number of points other than 4, 7, 10, 13, 
16...");
+                        SAL_WARN_IF((aCount - 1) % 3 != 0, "drawinglayer.emf",
+                                    "EMF+\t Bezier Draw not support number of 
points other than 4, 7, "
+                                    "10, 13, 16...");
 
                         if (aCount < 4)
                         {
-                            SAL_WARN("drawinglayer.emf", "EMF+\t Bezier Draw 
does not support less than 4 points. Number of points: " << aCount);
+                            SAL_WARN("drawinglayer.emf", "EMF+\t Bezier Draw 
does not support less "
+                                                         "than 4 points. 
Number of points: "
+                                                             << aCount);
                             break;
                         }
 
@@ -1357,29 +1361,26 @@ namespace emfplushelper
                         // We need to add first starting point
                         aStartPoint = Map(x1, y1);
                         aPolygon.append(aStartPoint);
-
+                        SAL_INFO("drawinglayer.emf",
+                                 "EMF+\t Bezier starting point: " << x1 << "," 
<< y1);
                         for (sal_uInt32 i = 4; i <= aCount; i += 3)
                         {
                             ReadPoint(rMS, x2, y2, flags);
                             ReadPoint(rMS, x3, y3, flags);
                             ReadPoint(rMS, x4, y4, flags);
 
-                            SAL_INFO("drawinglayer.emf", "EMF+\t Bezier 
points: " << x1 << "," << y1 << " " << x2 << "," << y2 << " " << x3 << "," << 
y3 << " " << x4 << "," << y4);
+                            SAL_INFO("drawinglayer.emf",
+                                     "EMF+\t Bezier points: " << x2 << "," << 
y2 << " " << x3 << ","
+                                                              << y3 << " " << 
x4 << "," << y4);
 
-                            aStartPoint = Map(x1, y1);
                             aControlPointA = Map(x2, y2);
                             aControlPointB = Map(x3, y3);
                             aEndPoint = Map(x4, y4);
-
-                            ::basegfx::B2DCubicBezier cubicBezier(aStartPoint, 
aControlPointA, aControlPointB, aEndPoint);
-                            cubicBezier.adaptiveSubdivideByDistance(aPolygon, 
10.0);
-
-                            
EMFPPlusDrawPolygon(::basegfx::B2DPolyPolygon(aPolygon), flags & 0xff);
-
+                            aPolygon.appendBezierSegment(aControlPointA, 
aControlPointB, aEndPoint);
                             // The ending coordinate of one Bezier curve is 
the starting coordinate of the next.
-                            x1 = x4;
-                            y1 = y4;
+                            aStartPoint = aEndPoint;
                         }
+                        
EMFPPlusDrawPolygon(::basegfx::B2DPolyPolygon(aPolygon), flags & 0xff);
                         break;
                     }
                     case EmfPlusRecordTypeDrawClosedCurve:
diff --git a/emfio/qa/cppunit/emf/EmfImportTest.cxx 
b/emfio/qa/cppunit/emf/EmfImportTest.cxx
index e858fd7afc4d..930e4f0961dc 100644
--- a/emfio/qa/cppunit/emf/EmfImportTest.cxx
+++ b/emfio/qa/cppunit/emf/EmfImportTest.cxx
@@ -47,6 +47,7 @@ class Test : public UnoApiXmlTest
     void TestDrawStringAlign();
     void TestDrawStringTransparent();
     void TestDrawStringWithBrush();
+    void TestEmfPlusDrawBeziers();
     void TestDrawLine();
     void TestDrawLineWithCaps();
     void TestDrawLineWithDash();
@@ -101,6 +102,7 @@ public:
     CPPUNIT_TEST(TestDrawStringAlign);
     CPPUNIT_TEST(TestDrawStringTransparent);
     CPPUNIT_TEST(TestDrawStringWithBrush);
+    CPPUNIT_TEST(TestEmfPlusDrawBeziers);
     CPPUNIT_TEST(TestDrawLine);
     CPPUNIT_TEST(TestDrawLineWithCaps);
     CPPUNIT_TEST(TestDrawLineWithDash);
@@ -376,6 +378,34 @@ void Test::TestDrawStringWithBrush()
                 "TIMES NEW ROMAN");
 }
 
+void Test::TestEmfPlusDrawBeziers()
+{
+    // tdf#107019 tdf#154789 EMF+ records: DrawBeziers
+    // Check if DrawBeziers is displayed correctly and text is rotated
+    Primitive2DSequence aSequence
+        = parseEmf(u"emfio/qa/cppunit/emf/data/TestEmfPlusDrawBeziers.emf");
+    CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(aSequence.getLength()));
+    drawinglayer::Primitive2dXmlDump dumper;
+    xmlDocUniquePtr pDocument = 
dumper.dumpAndParse(Primitive2DContainer(aSequence));
+    CPPUNIT_ASSERT(pDocument);
+
+    assertXPath(pDocument, aXPathPrefix + "polypolygoncolor", 4);
+    assertXPath(pDocument, aXPathPrefix + "polypolygoncolor[1]", "color", 
"#000000");
+
+    assertXPath(pDocument, aXPathPrefix + "polygonstrokearrow", 9);
+    assertXPath(pDocument, aXPathPrefix + "polygonstrokearrow[9]/line", 
"color", "#00ff00");
+
+    assertXPath(pDocument, aXPathPrefix + "transform", 5);
+    assertXPath(pDocument, aXPathPrefix + "transform[1]/textsimpleportion", 
"fontcolor", "#000000");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]/textsimpleportion", 
"text", "% Efficiency");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy11", "0");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy12", "4");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy13", "800");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy21", "-4");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy22", "0");
+    assertXPath(pDocument, aXPathPrefix + "transform[1]", "xy23", "3195");
+}
+
 void Test::TestDrawLine()
 {
     // EMF+ with records: DrawLine
diff --git a/emfio/qa/cppunit/emf/data/TestEmfPlusDrawBeziers.emf 
b/emfio/qa/cppunit/emf/data/TestEmfPlusDrawBeziers.emf
new file mode 100644
index 000000000000..11f07412168d
Binary files /dev/null and 
b/emfio/qa/cppunit/emf/data/TestEmfPlusDrawBeziers.emf differ

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