Adding functionality to paint and signal buffer swap for ozone surface factory.

OZONE event factory should be a bit more verbose on error.

BUG=

Review URL: https://chromiumcodereview.appspot.com/23438002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@220632 0039d316-1c4b-4281-b951-d872f2087c98

third_party/khronos/EGL/eglplatform.h

@@ -96,7 +96,7 @@ typedef void*                           EGLNativeDisplayType;
 
 #elif defined(USE_OZONE)
 
-typedef int      EGLNativeDisplayType;
+typedef intptr_t EGLNativeDisplayType;
 typedef intptr_t EGLNativeWindowType;
 typedef intptr_t EGLNativePixmapType;
 

ui/base/ozone/event_factory_ozone.cc

@@ -4,6 +4,7 @@
 
 #include "ui/base/ozone/event_factory_ozone.h"
 
+#include <errno.h>
 #include <fcntl.h>
 #include <linux/input.h>
 #include <poll.h>
@@ -45,8 +46,10 @@ void EventFactoryOzone::CreateStartupEventConverters() {
   for (int id = 0; true; id++) {
     std::string path = base::StringPrintf("/dev/input/event%d", id);
     int fd = open(path.c_str(), O_RDONLY | O_NONBLOCK);
-    if (fd < 0)
+    if (fd < 0) {
+      DLOG(ERROR) << "Cannot open '" << path << "': " << strerror(errno);
       break;
+    }
     size_t evtype = 0;
     COMPILE_ASSERT(sizeof(evtype) * 8 >= EV_MAX, evtype_wide_enough);
     if (ioctl(fd, EVIOCGBIT(0, sizeof(evtype)), &evtype) == -1) {

ui/base/ozone/surface_factory_ozone.cc

@@ -16,7 +16,7 @@ class SurfaceFactoryOzoneStub : public SurfaceFactoryOzone {
   SurfaceFactoryOzoneStub() {}
   virtual ~SurfaceFactoryOzoneStub() {}
 
-  virtual void InitializeHardware() OVERRIDE {}
+  virtual HardwareState InitializeHardware() OVERRIDE { return INITIALIZED; }
   virtual void ShutdownHardware() OVERRIDE {}
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE { return 0; }
   virtual gfx::AcceleratedWidget RealizeAcceleratedWidget(
@@ -61,6 +61,14 @@ gfx::Screen* SurfaceFactoryOzone::CreateDesktopScreen() {
   return NULL;
 }
 
+intptr_t SurfaceFactoryOzone::GetNativeDisplay() {
+  return 0;
+}
+
+bool SurfaceFactoryOzone::SchedulePageFlip(gfx::AcceleratedWidget) {
+  return true;
+}
+
 // static
 SurfaceFactoryOzone* SurfaceFactoryOzone::CreateTestHelper() {
   return new SurfaceFactoryOzoneStub;

ui/base/ozone/surface_factory_ozone.h

@@ -18,6 +18,12 @@ namespace ui {
 
 class UI_EXPORT SurfaceFactoryOzone {
  public:
+  // Describes the state of the hardware after initialization.
+  enum HardwareState {
+    INITIALIZED,
+    FAILED,
+  };
+
   SurfaceFactoryOzone();
   virtual ~SurfaceFactoryOzone();
 
@@ -35,15 +41,18 @@ class UI_EXPORT SurfaceFactoryOzone {
   // This method implements gfx::Screen, particularly useful in Desktop Aura.
   virtual gfx::Screen* CreateDesktopScreen();
 
-  // TODO(rjkroege): Add a status code if necessary.
   // Configures the display hardware. Must be called from within the GPU
   // process before the sandbox has been activated.
-  virtual void InitializeHardware() = 0;
+  virtual HardwareState InitializeHardware() = 0;
 
   // Cleans up display hardware state. Call this from within the GPU process.
   // This method must be safe to run inside of the sandbox.
   virtual void ShutdownHardware() = 0;
 
+  // Returns the native EGL display. This is generally needed in creating
+  // EGL windows.
+  virtual intptr_t GetNativeDisplay();
+
   // Obtains an AcceleratedWidget backed by a native Linux framebuffer.
   // The  returned AcceleratedWidget is an opaque token that must realized
   // before it can be used to create a GL surface.
@@ -65,6 +74,10 @@ class UI_EXPORT SurfaceFactoryOzone {
       gfx::AcceleratedWidget w,
       const gfx::Rect& bounds) = 0;
 
+  // Called after the appropriate GL swap buffers command. Used if extra work
+  // is needed to perform the actual buffer swap.
+  virtual bool SchedulePageFlip(gfx::AcceleratedWidget w);
+
   // Returns a gfx::VsyncProvider for the provided AcceleratedWidget. Note
   // that this may be called after we have entered the sandbox so if there are
   // operations (e.g. opening a file descriptor providing vsync events) that
@@ -81,5 +94,4 @@ class UI_EXPORT SurfaceFactoryOzone {
 
 }  // namespace ui
 
-
 #endif  // UI_BASE_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_

ui/gl/gl_surface_egl.cc

@@ -100,10 +100,6 @@ bool GLSurfaceEGL::InitializeOneOff() {
   if (initialized)
     return true;
 
-#if defined (USE_OZONE)
-  ui::SurfaceFactoryOzone::GetInstance()->InitializeHardware();
-#endif
-
 #if defined(USE_X11)
   g_native_display = base::MessagePumpForUI::GetDefaultXDisplay();
 #elif defined(OS_WIN)
@@ -111,6 +107,16 @@ bool GLSurfaceEGL::InitializeOneOff() {
   if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableD3D11)) {
     g_native_display = EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE;
   }
+#elif defined(USE_OZONE)
+  ui::SurfaceFactoryOzone* surface_factory =
+      ui::SurfaceFactoryOzone::GetInstance();
+  if (surface_factory->InitializeHardware() !=
+      ui::SurfaceFactoryOzone::INITIALIZED) {
+    LOG(ERROR) << "OZONE failed to initialize hardware";
+    return false;
+  }
+  g_native_display = reinterpret_cast<EGLNativeDisplayType>(
+      surface_factory->GetNativeDisplay());
 #else
   g_native_display = EGL_DEFAULT_DISPLAY;
 #endif