1 files changed, 8 insertions, 0 deletions
diff --git a/platform/glfw/glfw_view.cpp b/platform/glfw/glfw_view.cpp
index 41c3e93b35..43c4de9759 100644
--- a/platform/glfw/glfw_view.cpp
+++ b/platform/glfw/glfw_view.cpp
@@ -102,6 +102,7 @@ GLFWView::GLFWView(bool fullscreen_, bool benchmark_)
     glfwSetFramebufferSizeCallback(window, onFramebufferResize);
     glfwSetScrollCallback(window, onScroll);
     glfwSetKeyCallback(window, onKey);
+    glfwSetWindowFocusCallback(window, onWindowFocus);
 
     glfwGetWindowSize(window, &width, &height);
 
@@ -559,6 +560,13 @@ void GLFWView::onMouseMove(GLFWwindow *window, double x, double y) {
     view->lastY = y;
 }
 
+void GLFWView::onWindowFocus(GLFWwindow *window, int focused) {
+    if (focused == GLFW_FALSE) { // Focus lost.
+        auto *view = reinterpret_cast<GLFWView *>(glfwGetWindowUserPointer(window));
+        view->rendererFrontend->getRenderer()->reduceMemoryUse();
+    }
+}
+
 void GLFWView::run() {
     auto callback = [&] {
         if (glfwWindowShouldClose(window)) {