vcpkg/ports/opencv3/0005-fix-vtk9.patch

--- a/cmake/OpenCVDetectVTK.cmake
+++ b/cmake/OpenCVDetectVTK.cmake
@@ -1,12 +1,30 @@
+# VTK 9.0
+if(NOT VTK_FOUND)
+  find_package(VTK 9 QUIET NAMES vtk COMPONENTS
+    FiltersExtraction
+    FiltersSources
+    FiltersTexture
+    IOExport
+    IOGeometry
+    IOPLY
+    InteractionStyle
+    RenderingCore
+    RenderingLOD
+    RenderingOpenGL2
+    NO_MODULE)
+endif()
+
 # VTK 6.x components
-find_package(VTK QUIET COMPONENTS vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport NO_MODULE)
-IF(VTK_FOUND)
-  IF(VTK_RENDERING_BACKEND) #in vtk 7, the rendering backend is exported as a var.
+if(NOT VTK_FOUND)
+  find_package(VTK QUIET COMPONENTS vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport NO_MODULE)
+  IF(VTK_FOUND)
+    IF(VTK_RENDERING_BACKEND) #in vtk 7, the rendering backend is exported as a var.
       find_package(VTK QUIET COMPONENTS vtkRendering${VTK_RENDERING_BACKEND} vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport vtkIOGeometry NO_MODULE)
-  ELSE(VTK_RENDERING_BACKEND)
+    ELSE(VTK_RENDERING_BACKEND)
       find_package(VTK QUIET COMPONENTS vtkRenderingOpenGL vtkInteractionStyle vtkRenderingLOD vtkIOPLY vtkFiltersTexture vtkRenderingFreeType vtkIOExport NO_MODULE)
-  ENDIF(VTK_RENDERING_BACKEND)
-ENDIF(VTK_FOUND)
+    ENDIF(VTK_RENDERING_BACKEND)
+  ENDIF(VTK_FOUND)
+endif()
 
 # VTK 5.x components
 if(NOT VTK_FOUND)
diff --git a/modules/viz/CMakeLists.txt b/modules/viz/CMakeLists.txt
index 256b464..92698c3 100644
--- a/modules/viz/CMakeLists.txt
+++ b/modules/viz/CMakeLists.txt
@@ -3,7 +3,6 @@ if(NOT HAVE_VTK)
 endif()
 
 set(the_description "Viz")
-include(${VTK_USE_FILE})
 
 if(NOT BUILD_SHARED_LIBS)
   # We observed conflict between builtin 3rdparty libraries and
@@ -27,7 +26,14 @@ endif()
 ocv_warnings_disable(CMAKE_CXX_FLAGS -Winconsistent-missing-override -Wsuggest-override)
 
 ocv_define_module(viz opencv_core WRAP python)
-ocv_target_link_libraries(${the_module} PRIVATE ${VTK_LIBRARIES})
+
+if (VTK_VERSION VERSION_LESS "8.90.0")
+  include(${VTK_USE_FILE})
+  ocv_target_link_libraries(${the_module} PRIVATE ${VTK_LIBRARIES})
+else ()
+  ocv_target_link_libraries(${the_module} PRIVATE ${VTK_LIBRARIES})
+  vtk_module_autoinit(TARGETS ${the_module} MODULES ${VTK_LIBRARIES})
+endif()
 
 if(APPLE AND BUILD_opencv_viz)
   ocv_target_link_libraries(${the_module} PRIVATE "-framework Cocoa")
diff --git a/modules/viz/src/precomp.hpp b/modules/viz/src/precomp.hpp
index f92fdb6..4c4bf7c 100644
--- a/modules/viz/src/precomp.hpp
+++ b/modules/viz/src/precomp.hpp
@@ -133,7 +133,8 @@
 #include <vtkColorTransferFunction.h>
 #include <vtkStreamingDemandDrivenPipeline.h>
 #include <vtkLight.h>
-#include "vtkCallbackCommand.h"
+#include <vtkCallbackCommand.h>
+#include <vtkVersion.h>
 
 #if !defined(_WIN32) || defined(__CYGWIN__)
 # include <unistd.h> /* unlink */
@@ -149,6 +150,11 @@
 #include "vtk/vtkTrajectorySource.h"
 #include "vtk/vtkImageMatSource.h"
 
+#if VTK_MAJOR_VERSION >= 9
+typedef vtkIdType const * CellIterT;
+#else
+typedef vtkIdType * CellIterT;
+#endif
 
 #include <opencv2/core.hpp>
 #include <opencv2/viz.hpp>
diff --git a/modules/viz/src/types.cpp b/modules/viz/src/types.cpp
index 65571a1..e9a470c 100644
--- a/modules/viz/src/types.cpp
+++ b/modules/viz/src/types.cpp
@@ -97,10 +97,12 @@ cv::viz::Mesh cv::viz::Mesh::load(const String& file, int type)
     // Now handle the polygons
     vtkSmartPointer<vtkCellArray> polygons = polydata->GetPolys();
     mesh.polygons.create(1, polygons->GetSize(), CV_32SC1);
+    mesh.polygons = 0;
     int* poly_ptr = mesh.polygons.ptr<int>();
 
     polygons->InitTraversal();
-    vtkIdType nr_cell_points, *cell_points;
+    vtkIdType nr_cell_points;
+    CellIterT cell_points;
     while (polygons->GetNextCell(nr_cell_points, cell_points))
     {
         *poly_ptr++ = nr_cell_points;
--- a/modules/viz/src/vizimpl.cpp
+++ b/modules/viz/src/vizimpl.cpp
@@ -55,8 +55,17 @@ cv::viz::Viz3d::VizImpl::VizImpl(const String &name) : spin_once_state_(false),
 
     // Create render window
     window_ = vtkSmartPointer<vtkRenderWindow>::New();
-    cv::Vec2i window_size = cv::Vec2i(window_->GetScreenSize()) / 2;
-    window_->SetSize(window_size.val);
+    int * sz = window_->GetScreenSize();
+    if (sz)
+    {
+        cv::Vec2i window_size = cv::Vec2i(sz) / 2;
+        window_->SetSize(window_size.val);
+    }
+    else
+    {
+        int new_sz[2] = { 640, 480 };
+        window_->SetSize(new_sz);
+    }
     window_->AddRenderer(renderer_);
 
     // Create the interactor style
--- a/modules/viz/src/vtk/vtkOBJWriter.cpp
+++ b/modules/viz/src/vtk/vtkOBJWriter.cpp
@@ -72,7 +72,7 @@ void cv::viz::vtkOBJWriter::WriteData()
     }
 
     vtkDebugMacro(<<"Opening vtk file for writing...");
-    ostream *outfilep = new ofstream(this->FileName, ios::out);
+    std::ostream *outfilep = new std::ofstream(this->FileName, ios::out);
     if (outfilep->fail())
     {
         vtkErrorMacro(<< "Unable to open file: "<< this->FileName);
@@ -127,7 +127,8 @@ void cv::viz::vtkOBJWriter::WriteData()
     // write out verts if any
     if (input->GetNumberOfVerts() > 0)
     {
-        vtkIdType npts = 0, *index = 0;
+        vtkIdType npts = 0;
+        CellIterT index = 0;
         vtkCellArray *cells = input->GetVerts();
         for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
         {
@@ -141,7 +142,8 @@ void cv::viz::vtkOBJWriter::WriteData()
     // write out lines if any
     if (input->GetNumberOfLines() > 0)
     {
-        vtkIdType npts = 0, *index = 0;
+        vtkIdType npts = 0;
+        CellIterT index = 0;
         vtkCellArray *cells = input->GetLines();
         for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
         {
@@ -162,7 +164,8 @@ void cv::viz::vtkOBJWriter::WriteData()
     // write out polys if any
     if (input->GetNumberOfPolys() > 0)
     {
-        vtkIdType npts = 0, *index = 0;
+        vtkIdType npts = 0;
+        CellIterT index = 0;
         vtkCellArray *cells = input->GetPolys();
         for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
         {
@@ -191,7 +194,8 @@ void cv::viz::vtkOBJWriter::WriteData()
     // write out tstrips if any
     if (input->GetNumberOfStrips() > 0)
     {
-        vtkIdType npts = 0, *index = 0;
+        vtkIdType npts = 0;
+        CellIterT index = 0;
         vtkCellArray *cells = input->GetStrips();
         for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
         {
--- a/modules/viz/src/vtk/vtkXYZReader.cpp
+++ b/modules/viz/src/vtk/vtkXYZReader.cpp
@@ -77,7 +77,7 @@ int cv::viz::vtkXYZReader::RequestData(vtkInformation*, vtkInformationVector**,
     }
 
     // Open the input file.
-    ifstream fin(this->FileName);
+    std::ifstream fin(this->FileName);
     if(!fin)
     {
         vtkErrorMacro("Error opening file " << this->FileName);
--- a/modules/viz/src/vtk/vtkXYZWriter.cpp
+++ b/modules/viz/src/vtk/vtkXYZWriter.cpp
@@ -69,7 +69,7 @@ void cv::viz::vtkXYZWriter::WriteData()
     }
 
     vtkDebugMacro(<<"Opening vtk file for writing...");
-    ostream *outfilep = new ofstream(this->FileName, ios::out);
+    std::ostream *outfilep = new std::ofstream(this->FileName, ios::out);
     if (outfilep->fail())
     {
         vtkErrorMacro(<< "Unable to open file: "<< this->FileName);
--- a/modules/viz/test/test_tutorial2.cpp
+++ b/modules/viz/test/test_tutorial2.cpp
@@ -28,7 +28,7 @@ static void tutorial2()
     /// Rodrigues vector
     Vec3d rot_vec = Vec3d::all(0);
     double translation_phase = 0.0, translation = 0.0;
-    while(!myWindow.wasStopped())
+    for(unsigned num = 0; num < 50; ++num)
     {
         /* Rotation using rodrigues */
         /// Rotate around (1,1,1)
@@ -45,7 +45,7 @@ static void tutorial2()
 
         myWindow.setWidgetPose("Cube Widget", pose);
 
-        myWindow.spinOnce(1, true);
+        myWindow.spinOnce(100, true);
     }
 }
 
--- a/modules/viz/test/test_tutorial3.cpp
+++ b/modules/viz/test/test_tutorial3.cpp
@@ -48,7 +48,7 @@ static void tutorial3(bool camera_pov)
         myWindow.setViewerPose(camera_pose);
 
     /// Start event loop.
-    myWindow.spin();
+    myWindow.spinOnce(500, true);
 }
 
 TEST(Viz, tutorial3_global_view)
--- a/modules/viz/test/test_viz3d.cpp
+++ b/modules/viz/test/test_viz3d.cpp
@@ -59,7 +59,7 @@ TEST(Viz_viz3d, DISABLED_develop)
     //cv::Mat cloud = cv::viz::readCloud(get_dragon_ply_file_path());
     //---->>>>> </to_test_in_future>
 
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 }} // namespace
--- a/modules/viz/test/tests_simple.cpp
+++ b/modules/viz/test/tests_simple.cpp
@@ -56,7 +56,7 @@ TEST(Viz, show_cloud_bluberry)
     viz.showWidget("dragon", WCloud(dragon_cloud, Color::bluberry()), pose);
 
     viz.showWidget("text2d", WText("Bluberry cloud", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_cloud_random_color)
@@ -73,7 +73,7 @@ TEST(Viz, show_cloud_random_color)
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("dragon", WCloud(dragon_cloud, colors), pose);
     viz.showWidget("text2d", WText("Random color cloud", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_cloud_masked)
@@ -91,7 +91,7 @@ TEST(Viz, show_cloud_masked)
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("dragon", WCloud(dragon_cloud), pose);
     viz.showWidget("text2d", WText("Nan masked cloud", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_cloud_collection)
@@ -109,7 +109,7 @@ TEST(Viz, show_cloud_collection)
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("ccol", ccol);
     viz.showWidget("text2d", WText("Cloud collection", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_painted_clouds)
@@ -124,7 +124,7 @@ TEST(Viz, show_painted_clouds)
     viz.showWidget("cloud3", WPaintedCloud(cloud, Vec3d(0.0, 0.0, -1.0), Vec3d(0.0, 0.0, 1.0), Color::blue(), Color::red()));
     viz.showWidget("arrow", WArrow(Vec3d(0.0, 1.0, -1.0), Vec3d(0.0, 1.0, 1.0), 0.009, Color::raspberry()));
     viz.showWidget("text2d", WText("Painted clouds", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_mesh)
@@ -137,7 +137,7 @@ TEST(Viz, show_mesh)
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("mesh", WMesh(mesh), pose);
     viz.showWidget("text2d", WText("Just mesh", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_mesh_random_colors)
@@ -152,7 +152,7 @@ TEST(Viz, show_mesh_random_colors)
     viz.showWidget("mesh", WMesh(mesh), pose);
     viz.setRenderingProperty("mesh", SHADING, SHADING_PHONG);
     viz.showWidget("text2d", WText("Random color mesh", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_widget_merger)
@@ -173,7 +173,7 @@ TEST(Viz, show_widget_merger)
     viz.showWidget("coo", WCoordinateSystem());
     viz.showWidget("merger", merger);
     viz.showWidget("text2d", WText("Widget merger", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_textured_mesh)
@@ -210,7 +210,7 @@ TEST(Viz, show_textured_mesh)
     viz.showWidget("mesh", WMesh(mesh));
     viz.setRenderingProperty("mesh", SHADING, SHADING_PHONG);
     viz.showWidget("text2d", WText("Textured mesh", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_polyline)
@@ -229,7 +229,7 @@ TEST(Viz, show_polyline)
     viz.showWidget("polyline", WPolyLine(polyline, colors));
     viz.showWidget("coosys", WCoordinateSystem());
     viz.showWidget("text2d", WText("Polyline", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_sampled_normals)
@@ -244,7 +244,7 @@ TEST(Viz, show_sampled_normals)
     viz.showWidget("normals", WCloudNormals(mesh.cloud, mesh.normals, 30, 0.1f, Color::green()), pose);
     viz.setRenderingProperty("normals", LINE_WIDTH, 2.0);
     viz.showWidget("text2d", WText("Cloud or mesh normals", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_cloud_shaded_by_normals)
@@ -260,7 +260,7 @@ TEST(Viz, show_cloud_shaded_by_normals)
     Viz3d viz("show_cloud_shaded_by_normals");
     viz.showWidget("cloud", cloud, pose);
     viz.showWidget("text2d", WText("Cloud shaded by normals", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_trajectories)
@@ -287,15 +287,15 @@ TEST(Viz, show_trajectories)
     viz.showWidget("text2d", WText("Different kinds of supported trajectories", Point(20, 20), 20, Color::green()));
 
     int i = 0;
-    while(!viz.wasStopped())
+    for(unsigned num = 0; num < 50; ++num)
     {
         double a = --i % 360;
         Vec3d pose(sin(a * CV_PI/180), 0.7, cos(a * CV_PI/180));
         viz.setViewerPose(makeCameraPose(pose * 7.5, Vec3d(0.0, 0.5, 0.0), Vec3d(0.0, 0.1, 0.0)));
-        viz.spinOnce(20, true);
+        viz.spinOnce(100, true);
     }
     viz.resetCamera();
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_trajectory_reposition)
@@ -306,7 +306,7 @@ TEST(Viz, show_trajectory_reposition)
     viz.showWidget("coos", WCoordinateSystem());
     viz.showWidget("sub3", WTrajectory(Mat(path).rowRange(0, (int)path.size()/3), WTrajectory::BOTH, 0.2, Color::brown()), path.front().inv());
     viz.showWidget("text2d", WText("Trajectory resposition to origin", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_camera_positions)
@@ -330,7 +330,7 @@ TEST(Viz, show_camera_positions)
     viz.showWidget("pos3", WCameraPosition(0.75), poses[1]);
     viz.showWidget("pos4", WCameraPosition(K, gray, 3, Color::indigo()), poses[1]);
     viz.showWidget("text2d", WText("Camera positions with images", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_overlay_image)
@@ -353,16 +353,16 @@ TEST(Viz, show_overlay_image)
     viz.showWidget("text2d", WText("Overlay images", Point(20, 20), 20, Color::green()));
 
     int i = 0;
-    while(!viz.wasStopped())
+    for(unsigned num = 0; num < 50; ++num)
     {
         double a = ++i % 360;
         Vec3d pose(sin(a * CV_PI/180), 0.7, cos(a * CV_PI/180));
         viz.setViewerPose(makeCameraPose(pose * 3, Vec3d(0.0, 0.5, 0.0), Vec3d(0.0, 0.1, 0.0)));
         viz.getWidget("img1").cast<WImageOverlay>().setImage(lena * pow(sin(i*10*CV_PI/180) * 0.5 + 0.5, 1.0));
-        viz.spinOnce(1, true);
+        viz.spinOnce(100, true);
     }
     viz.showWidget("text2d", WText("Overlay images (stopped)", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 
@@ -376,7 +376,7 @@ TEST(Viz, show_image_method)
     viz.showImage(lena, lena.size());
     viz.spinOnce(1500, true);
 
-    cv::viz::imshow("show_image_method", make_gray(lena)).spin();
+    cv::viz::imshow("show_image_method", make_gray(lena)).spinOnce(500, true);
 }
 
 TEST(Viz, show_image_3d)
@@ -398,13 +398,13 @@ TEST(Viz, show_image_3d)
     viz.showWidget("text2d", WText("Images in 3D", Point(20, 20), 20, Color::green()));
 
     int i = 0;
-    while(!viz.wasStopped())
+    for(unsigned num = 0; num < 50; ++num)
     {
         viz.getWidget("img0").cast<WImage3D>().setImage(lena * pow(sin(i++*7.5*CV_PI/180) * 0.5 + 0.5, 1.0));
-        viz.spinOnce(1, true);
+        viz.spinOnce(100, true);
     }
     viz.showWidget("text2d", WText("Images in 3D (stopped)", Point(20, 20), 20, Color::green()));
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_simple_widgets)
@@ -431,10 +431,10 @@ TEST(Viz, show_simple_widgets)
 
     viz.showWidget("grid1", WGrid(Vec2i(7,7), Vec2d::all(0.75), Color::gray()), Affine3d().translate(Vec3d(0.0, 0.0, -1.0)));
 
-    viz.spin();
+    viz.spinOnce(500, true);
     viz.getWidget("text2d").cast<WText>().setText("Different simple widgets (updated)");
     viz.getWidget("text3d").cast<WText3D>().setText("Updated text 3D");
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 TEST(Viz, show_follower)
@@ -446,9 +446,9 @@ TEST(Viz, show_follower)
     viz.showWidget("t3d_2", WText3D("Simple 3D follower", Point3d(-0.5, -0.5, 0.5), 0.125, true,  Color::green()));
     viz.showWidget("text2d", WText("Follower: text always facing camera", Point(20, 20), 20, Color::green()));
     viz.setBackgroundMeshLab();
-    viz.spin();
+    viz.spinOnce(500, true);
     viz.getWidget("t3d_2").cast<WText3D>().setText("Updated follower 3D");
-    viz.spin();
+    viz.spinOnce(500, true);
 }
 
 }} // namespace