Test that recreating renderbuffers doesn't leak resources

util/test/demos/gl/gl_leak_check.cpp

@@ -52,6 +52,10 @@ RD_TEST(GL_Leak_Check, OpenGLGraphicsTest)
     glBindTexture(GL_TEXTURE_2D, tex);
     glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA32F, 4, 4);
 
+    GLuint rb = 0;
+    glGenRenderbuffers(1, &rb);
+    glBindRenderbuffer(GL_RENDERBUFFER, rb);
+
     while(Running())
     {
       // allow a generous 500MB, we're really only after catching big leaks here
@@ -61,6 +65,9 @@ RD_TEST(GL_Leak_Check, OpenGLGraphicsTest)
         break;
       }
 
+      glBindRenderbuffer(GL_RENDERBUFFER, rb);
+      glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA16F, 300, 300);
+
       float col[] = {0.2f, 0.2f, 0.2f, 1.0f};
       glClearBufferfv(GL_COLOR, 0, col);
 
@@ -77,6 +84,8 @@ RD_TEST(GL_Leak_Check, OpenGLGraphicsTest)
       Present();
     }
 
+    glDeleteRenderbuffers(1, &rb);
+
     return 0;
   }
 };