Perf Tests: Add offscreen mode.

src/tests/perf_tests/ANGLEPerfTestArgs.cpp

@@ -22,6 +22,7 @@ bool gVerboseLogging       = false;
 double gTestTimeSeconds    = 1.0;
 int gTestTrials            = 3;
 bool gNoFinish             = false;
+bool gEnableOffscreen      = false;
 
 // Default to three warmup loops. There's no science to this. More than two loops was experimentally
 // helpful on a Windows NVIDIA setup when testing with Vulkan and native trace tests.
@@ -116,6 +117,10 @@ void ANGLEProcessPerfTestArgs(int *argc, char **argv)
         {
             gNoFinish = true;
         }
+        else if (strcmp("--enable-offscreen", argv[argIndex]) == 0)
+        {
+            gEnableOffscreen = true;
+        }
         else
         {
             argv[argcOutCount++] = argv[argIndex];

src/tests/perf_tests/ANGLEPerfTestArgs.h

@@ -24,6 +24,7 @@ extern int gWarmupLoops;
 extern double gTestTimeSeconds;
 extern int gTestTrials;
 extern bool gNoFinish;
+extern bool gEnableOffscreen;
 
 inline bool OneFrame()
 {

src/tests/perf_tests/README.md

@@ -35,6 +35,7 @@ Several command-line arguments control how the tests run:
 * `--test-time`: Run each test trial in a fixed time. Defaults to 1 second.
 * `--trials`: Number of times to repeat testing. Defaults to 3.
 * `--no-finish`: Don't call glFinish after each test trial.
+* `--enable-offscreen`: Offscreen tests disabled by default to reduce test time.
 
 For example, for an endless run with no warmup, run:
 

util/OSWindow.cpp

@@ -347,7 +347,8 @@ static void PrintEvent(const Event &event)
 }
 #endif
 
-OSWindow::OSWindow() : mX(0), mY(0), mWidth(0), mHeight(0) {}
+OSWindow::OSWindow() : mX(0), mY(0), mWidth(0), mHeight(0), mValid(false), mIgnoreSizeEvents(false)
+{}
 
 OSWindow::~OSWindow() {}
 

util/OSWindow.h

@@ -68,6 +68,8 @@ class ANGLE_UTIL_EXPORT OSWindow
     // Whether window has been successfully initialized.
     bool valid() const { return mValid; }
 
+    void ignoreSizeEvents() { mIgnoreSizeEvents = true; }
+
   protected:
     OSWindow();
     virtual ~OSWindow();
@@ -82,6 +84,7 @@ class ANGLE_UTIL_EXPORT OSWindow
     std::list<Event> mEvents;
 
     bool mValid;
+    bool mIgnoreSizeEvents;
 };
 
 #endif  // UTIL_OSWINDOW_H_

util/windows/win32/Win32Window.cpp

@@ -277,6 +277,9 @@ LRESULT CALLBACK Win32Window::WndProc(HWND hWnd, UINT message, WPARAM wParam, LP
 
             case WM_SIZE:
             {
+                if (window->mIgnoreSizeEvents)
+                    break;
+
                 RECT winRect;
                 GetClientRect(hWnd, &winRect);