v01

thirdparty/Pangolin/examples/HelloPangolinThreads/main.cpp

@@ -0,0 +1,64 @@
+#include <pangolin/pangolin.h>
+#include <thread>
+
+static const std::string window_name = "HelloPangolinThreads";
+
+void setup() {
+    // create a window and bind its context to the main thread
+    pangolin::CreateWindowAndBind(window_name, 640, 480);
+
+    // enable depth
+    glEnable(GL_DEPTH_TEST);
+
+    // unset the current context from the main thread
+    pangolin::GetBoundWindow()->RemoveCurrent();
+}
+
+void run() {
+    // fetch the context and bind it to this thread
+    pangolin::BindToContext(window_name);
+
+    // we manually need to restore the properties of the context
+    glEnable(GL_DEPTH_TEST);
+
+    // Define Projection and initial ModelView matrix
+    pangolin::OpenGlRenderState s_cam(
+        pangolin::ProjectionMatrix(640,480,420,420,320,240,0.2,100),
+        pangolin::ModelViewLookAt(-2,2,-2, 0,0,0, pangolin::AxisY)
+    );
+
+    // Create Interactive View in window
+    pangolin::Handler3D handler(s_cam);
+    pangolin::View& d_cam = pangolin::CreateDisplay()
+            .SetBounds(0.0, 1.0, 0.0, 1.0, -640.0f/480.0f)
+            .SetHandler(&handler);
+
+    while( !pangolin::ShouldQuit() )
+    {
+        // Clear screen and activate view to render into
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        d_cam.Activate(s_cam);
+
+        // Render OpenGL Cube
+        pangolin::glDrawColouredCube();
+
+        // Swap frames and Process Events
+        pangolin::FinishFrame();
+    }
+
+    // unset the current context from the main thread
+    pangolin::GetBoundWindow()->RemoveCurrent();
+}
+
+int main( int /*argc*/, char** /*argv*/ )
+{
+    // create window and context in the main thread
+    setup();
+
+    // use the context in a separate rendering thread
+    std::thread render_loop;
+    render_loop = std::thread(run);
+    render_loop.join();
+
+    return 0;
+}