tests: validate manager-driven DrawList rendering

Author: tritao

.github/workflows/continuous-integration-workflow.yml

@@ -116,8 +116,7 @@ jobs:
           $installedPrefix = (Join-Path $env:GITHUB_WORKSPACE "cmake_install_dir").Replace('\', '/')
           cmake -S $smokeSource -B $smokeBuild -G "Visual Studio 17 2022" -A x64 -DCMAKE_PREFIX_PATH="$installedPrefix"
           cmake --build $smokeBuild --config Release
-      - name: Run compatibility tests
-        if: matrix.legacy_gl_renderer == 'ON'
+      - name: Run tests
         run: ctest -C Release -VV
         working-directory: cmake_build_dir
       - name: Create Artifacts
@@ -157,8 +156,7 @@ jobs:
             -DCMAKE_BUILD_TYPE=Release \
             -DCMAKE_PREFIX_PATH="$GITHUB_WORKSPACE/cmake_install_dir"
           cmake --build installed-package-smoke --config Release -- -j4
-      - name: Run compatibility tests
-        if: matrix.legacy_gl_renderer == 'ON'
+      - name: Run tests
         run: ctest -C Release -VV
         working-directory: cmake_build_dir
       - name: Create Artifacts

testsuite/CMakeLists.txt

@@ -145,6 +145,18 @@ if(HAVE_EGL)
 	add_test(NAME DrawListPickingTest COMMAND DrawListPickingTest)
 	set_tests_properties(DrawListPickingTest PROPERTIES SKIP_RETURN_CODE 77)
 
+	add_executable(DrawListManagerTest drawlist-manager-test.cpp)
+	target_link_libraries(DrawListManagerTest Coin ${COIN_TARGET_LINK_LIBRARIES})
+	target_compile_definitions(DrawListManagerTest PRIVATE COIN_INTERNAL)
+	target_include_directories(DrawListManagerTest PRIVATE
+		${PROJECT_SOURCE_DIR}/src
+		${PROJECT_SOURCE_DIR}/include
+		${PROJECT_BINARY_DIR}/include
+		${COIN_TARGET_INCLUDE_DIRECTORIES}
+	)
+	add_test(NAME DrawListManagerTest COMMAND DrawListManagerTest)
+	set_tests_properties(DrawListManagerTest PROPERTIES SKIP_RETURN_CODE 77)
+
 	add_executable(EGLBindingTest egl-binding-test.cpp)
 	target_link_libraries(EGLBindingTest Coin ${COIN_TARGET_LINK_LIBRARIES})
 	target_compile_definitions(EGLBindingTest PRIVATE COIN_INTERNAL)

testsuite/drawlist-manager-test.cpp

@@ -0,0 +1,70 @@
+#include "rendering/CoinOffscreenGLCanvas.h"
+
+#include <Inventor/SoDB.h>
+#include <Inventor/SoRenderManager.h>
+#include <Inventor/SbViewportRegion.h>
+#include <Inventor/nodes/SoCube.h>
+#include <Inventor/nodes/SoSeparator.h>
+
+#include <cstdlib>
+#include <iostream>
+
+namespace {
+
+int skip(const char * reason)
+{
+  std::cout << "SKIP: " << reason << std::endl;
+  return 77;
+}
+
+void set_environment(const char * name, const char * value)
+{
+#ifdef _WIN32
+  _putenv_s(name, value);
+#else
+  setenv(name, value, 1);
+#endif
+}
+
+}
+
+int
+main()
+{
+  set_environment("COIN_EGL", "1");
+  set_environment("EGL_PLATFORM", "surfaceless");
+  set_environment("COIN_EGL_CORE_PROFILE", "1");
+
+  SoDB::init();
+  CoinOffscreenGLCanvas canvas;
+  canvas.setWantedSize(SbVec2s(32, 32));
+  if (canvas.activateGLContext() == 0) {
+    SoDB::finish();
+    return skip("core EGL offscreen context is unavailable");
+  }
+
+  SoSeparator * root = new SoSeparator;
+  SoCube * cube = new SoCube;
+  root->addChild(cube);
+  root->ref();
+
+  uint8_t pixel[4] = {0, 0, 0, 0};
+  {
+    SoRenderManager manager;
+    manager.setViewportRegion(SbViewportRegion(SbVec2s(32, 32)));
+    manager.setSceneGraph(root);
+    manager.setRenderPipeline(SoRenderManager::RenderPipeline::DRAW_LIST);
+    manager.render(TRUE, TRUE);
+    canvas.readPixels(pixel, SbVec2s(1, 1), 1, 4);
+  }
+
+  root->unref();
+  canvas.deactivateGLContext();
+  SoDB::finish();
+
+  if (pixel[0] == 0 && pixel[1] == 0 && pixel[2] == 0) {
+    std::cerr << "FAIL: manager DrawList pipeline produced no pixels" << std::endl;
+    return 1;
+  }
+  return 0;
+}