under Windows waiting for user input when some tutorials got opened in a new window

Author: svenwoop

tutorials/bvh_access/CMakeLists.txt

@@ -2,7 +2,7 @@
 ## SPDX-License-Identifier: Apache-2.0
 
 ADD_EXECUTABLE(bvh_access ../../kernels/embree.rc bvh_access.cpp)
-TARGET_LINK_LIBRARIES(bvh_access embree math sys tasking ${GLFW_LIBRARY})
+TARGET_LINK_LIBRARIES(bvh_access embree math sys tasking tutorial ${GLFW_LIBRARY})
 SET_PROPERTY(TARGET bvh_access PROPERTY FOLDER tutorials/single)
 SET_PROPERTY(TARGET bvh_access APPEND PROPERTY COMPILE_FLAGS " ${FLAGS_LOWEST}")
 INSTALL(TARGETS bvh_access DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT examples)

tutorials/bvh_access/bvh_access.cpp

@@ -233,6 +233,10 @@ namespace embree
     /* cleanup */
     rtcReleaseScene (scene);
     rtcReleaseDevice(device);
+
+    /* wait for user input under Windows when opened in separate window */
+    waitForKeyPressedUnderWindows();
+    
     return 0;
   }
 }

tutorials/bvh_builder/bvh_builder.cpp

@@ -16,6 +16,12 @@ namespace embree
 
 }
 
-int main(int argc, char** argv) {
-  return embree::Tutorial().main(argc,argv);
+int main(int argc, char** argv)
+{
+  int code = embree::Tutorial().main(argc,argv);
+
+  /* wait for user input under Windows when opened in separate window */
+  embree::waitForKeyPressedUnderWindows();
+
+  return code;
 }

tutorials/common/tutorial/application.cpp

@@ -3,9 +3,36 @@
 
 #include "application.h"
 
+#if defined(_WIN32)
+#  include <stdio.h>
+#  include <conio.h>
+#  include <windows.h>
+#endif
+
 namespace embree
 {
   Application* Application::instance = nullptr;
+
+  void waitForKeyPressedUnderWindows()
+  {
+#if defined(_WIN32)
+    HANDLE hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+    
+    CONSOLE_SCREEN_BUFFER_INFO csbi;
+    if (!GetConsoleScreenBufferInfo(hStdOutput, &csbi)) {
+      printf("GetConsoleScreenBufferInfo failed: %d\n", GetLastError());
+      return;
+    }
+    
+    /* do not pause when running on a shell */
+    if (csbi.dwCursorPosition.X != 0 || csbi.dwCursorPosition.Y != 0)
+      return;
+    
+    /* only pause if running in separate console window. */
+    printf("\n\tPress any key to exit...\n");
+    int ch = getch();
+#endif
+  }
 
   Application::Application(int features)
     : rtcore("start_threads=1,set_affinity=1"), verbosity(0),

tutorials/common/tutorial/application.h

@@ -7,6 +7,8 @@
 
 namespace embree
 {
+  void waitForKeyPressedUnderWindows();
+ 
   class Application
   {
   public:

tutorials/minimal/minimal.cpp

@@ -5,6 +5,12 @@
 #include <stdio.h>
 #include <math.h>
 #include <limits>
+#include <stdio.h>
+
+#if defined(_WIN32)
+#  include <conio.h>
+#  include <windows.h>
+#endif
 
 /*
  * A minimal tutorial. 
@@ -200,6 +206,27 @@ void castRay(RTCScene scene,
     printf("Did not find any intersection.\n");
 }
 
+void waitForKeyPressedUnderWindows()
+{
+#if defined(_WIN32)
+  HANDLE hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
+  
+  CONSOLE_SCREEN_BUFFER_INFO csbi;
+  if (!GetConsoleScreenBufferInfo(hStdOutput, &csbi)) {
+    printf("GetConsoleScreenBufferInfo failed: %d\n", GetLastError());
+    return;
+  }
+  
+  /* do not pause when running on a shell */
+  if (csbi.dwCursorPosition.X != 0 || csbi.dwCursorPosition.Y != 0)
+    return;
+  
+  /* only pause if running in separate console window. */
+  printf("\n\tPress any key to exit...\n");
+  int ch = getch();
+#endif
+}
+
 
 /* -------------------------------------------------------------------------- */
 
@@ -220,7 +247,10 @@ int main()
    * always make sure to release resources allocated through Embree. */
   rtcReleaseScene(scene);
   rtcReleaseDevice(device);
-
+  
+  /* wait for user input under Windows when opened in separate window */
+  waitForKeyPressedUnderWindows();
+  
   return 0;
 }
 

tutorials/verify/verify.cpp

@@ -6029,6 +6029,11 @@ namespace embree
 int main(int argc, char** argv)
 {
   embree::VerifyApplication app;
-  return app.main(argc,argv);
+  int code = app.main(argc,argv);
+
+  /* wait for user input under Windows when opened in separate window */
+  embree::waitForKeyPressedUnderWindows();
+
+  return code;
 }