Merge "Getting rid of the (hidden) oldName parameter for widgets"
diff --git a/include/utils/RefBase.h b/include/utils/RefBase.h
index ca17082..c7a9b78 100644
--- a/include/utils/RefBase.h
+++ b/include/utils/RefBase.h
@@ -80,9 +80,12 @@
void incWeak(const void* id);
void decWeak(const void* id);
+ // acquires a strong reference if there is already one.
bool attemptIncStrong(const void* id);
- //! This is only safe if you have set OBJECT_LIFETIME_FOREVER.
+ // acquires a weak reference if there is already one.
+ // This is not always safe. see ProcessState.cpp and BpBinder.cpp
+ // for proper use.
bool attemptIncWeak(const void* id);
//! DEBUGGING ONLY: Get current weak ref count.
@@ -116,28 +119,15 @@
typedef RefBase basetype;
- // used to override the RefBase destruction.
- class Destroyer {
- friend class RefBase;
- friend class weakref_type;
- public:
- virtual ~Destroyer();
- private:
- virtual void destroy(RefBase const* base) = 0;
- };
-
- // Make sure to never acquire a strong reference from this function. The
- // same restrictions than for destructors apply.
- void setDestroyer(Destroyer* destroyer);
-
protected:
RefBase();
virtual ~RefBase();
//! Flags for extendObjectLifetime()
enum {
+ OBJECT_LIFETIME_STRONG = 0x0000,
OBJECT_LIFETIME_WEAK = 0x0001,
- OBJECT_LIFETIME_FOREVER = 0x0003
+ OBJECT_LIFETIME_MASK = 0x0001
};
void extendObjectLifetime(int32_t mode);
@@ -163,7 +153,7 @@
RefBase(const RefBase& o);
RefBase& operator=(const RefBase& o);
-
+
weakref_impl* const mRefs;
};
diff --git a/libs/ui/EGLUtils.cpp b/libs/ui/EGLUtils.cpp
index 020646b..f24a71d 100644
--- a/libs/ui/EGLUtils.cpp
+++ b/libs/ui/EGLUtils.cpp
@@ -24,8 +24,6 @@
#include <EGL/egl.h>
-#include <system/graphics.h>
-
#include <private/ui/android_natives_priv.h>
// ----------------------------------------------------------------------------
@@ -69,49 +67,31 @@
return BAD_VALUE;
// Get all the "potential match" configs...
- if (eglChooseConfig(dpy, attrs, 0, 0, &numConfigs) == EGL_FALSE)
+ if (eglGetConfigs(dpy, NULL, 0, &numConfigs) == EGL_FALSE)
return BAD_VALUE;
- if (numConfigs) {
- EGLConfig* const configs = new EGLConfig[numConfigs];
- if (eglChooseConfig(dpy, attrs, configs, numConfigs, &n) == EGL_FALSE) {
- delete [] configs;
- return BAD_VALUE;
- }
-
- bool hasAlpha = false;
- switch (format) {
- case HAL_PIXEL_FORMAT_RGBA_8888:
- case HAL_PIXEL_FORMAT_BGRA_8888:
- case HAL_PIXEL_FORMAT_RGBA_5551:
- case HAL_PIXEL_FORMAT_RGBA_4444:
- hasAlpha = true;
- break;
- }
-
- // The first config is guaranteed to over-satisfy the constraints
- EGLConfig config = configs[0];
-
- // go through the list and skip configs that over-satisfy our needs
- int i;
- for (i=0 ; i<n ; i++) {
- if (!hasAlpha) {
- EGLint alphaSize;
- eglGetConfigAttrib(dpy, configs[i], EGL_ALPHA_SIZE, &alphaSize);
- if (alphaSize > 0) {
- continue;
- }
- }
+ EGLConfig* const configs = (EGLConfig*)malloc(sizeof(EGLConfig)*numConfigs);
+ if (eglChooseConfig(dpy, attrs, configs, numConfigs, &n) == EGL_FALSE) {
+ free(configs);
+ return BAD_VALUE;
+ }
+
+ int i;
+ EGLConfig config = NULL;
+ for (i=0 ; i<n ; i++) {
+ EGLint nativeVisualId = 0;
+ eglGetConfigAttrib(dpy, configs[i], EGL_NATIVE_VISUAL_ID, &nativeVisualId);
+ if (nativeVisualId>0 && format == nativeVisualId) {
config = configs[i];
break;
}
+ }
- delete [] configs;
-
- if (i<n) {
- *outConfig = config;
- return NO_ERROR;
- }
+ free(configs);
+
+ if (i<n) {
+ *outConfig = config;
+ return NO_ERROR;
}
return NAME_NOT_FOUND;
diff --git a/libs/utils/RefBase.cpp b/libs/utils/RefBase.cpp
index 8db2009..37d061c 100644
--- a/libs/utils/RefBase.cpp
+++ b/libs/utils/RefBase.cpp
@@ -49,11 +49,6 @@
// ---------------------------------------------------------------------------
-RefBase::Destroyer::~Destroyer() {
-}
-
-// ---------------------------------------------------------------------------
-
class RefBase::weakref_impl : public RefBase::weakref_type
{
public:
@@ -61,7 +56,6 @@
volatile int32_t mWeak;
RefBase* const mBase;
volatile int32_t mFlags;
- Destroyer* mDestroyer;
#if !DEBUG_REFS
@@ -70,7 +64,6 @@
, mWeak(0)
, mBase(base)
, mFlags(0)
- , mDestroyer(0)
{
}
@@ -113,7 +106,7 @@
LOGD("\t%c ID %p (ref %d):", inc, refs->id, refs->ref);
#if DEBUG_REFS_CALLSTACK_ENABLED
refs->stack.dump();
-#endif;
+#endif
refs = refs->next;
}
}
@@ -131,7 +124,7 @@
LOGD("\t%c ID %p (ref %d):", inc, refs->id, refs->ref);
#if DEBUG_REFS_CALLSTACK_ENABLED
refs->stack.dump();
-#endif;
+#endif
refs = refs->next;
}
}
@@ -193,7 +186,7 @@
String8 text;
{
- Mutex::Autolock _l(const_cast<weakref_impl*>(this)->mMutex);
+ Mutex::Autolock _l(mMutex);
char buf[128];
sprintf(buf, "Strong references on RefBase %p (weakref_type %p):\n", mBase, this);
text.append(buf);
@@ -318,7 +311,7 @@
}
}
- Mutex mMutex;
+ mutable Mutex mMutex;
ref_entry* mStrongRefs;
ref_entry* mWeakRefs;
@@ -348,7 +341,7 @@
}
android_atomic_add(-INITIAL_STRONG_VALUE, &refs->mStrong);
- const_cast<RefBase*>(this)->onFirstRef();
+ refs->mBase->onFirstRef();
}
void RefBase::decStrong(const void* id) const
@@ -361,13 +354,9 @@
#endif
LOG_ASSERT(c >= 1, "decStrong() called on %p too many times", refs);
if (c == 1) {
- const_cast<RefBase*>(this)->onLastStrongRef(id);
- if ((refs->mFlags&OBJECT_LIFETIME_WEAK) != OBJECT_LIFETIME_WEAK) {
- if (refs->mDestroyer) {
- refs->mDestroyer->destroy(this);
- } else {
- delete this;
- }
+ refs->mBase->onLastStrongRef(id);
+ if ((refs->mFlags&OBJECT_LIFETIME_MASK) == OBJECT_LIFETIME_STRONG) {
+ delete this;
}
}
refs->decWeak(id);
@@ -391,7 +380,7 @@
android_atomic_add(-INITIAL_STRONG_VALUE, &refs->mStrong);
// fall through...
case 0:
- const_cast<RefBase*>(this)->onFirstRef();
+ refs->mBase->onFirstRef();
}
}
@@ -400,10 +389,6 @@
return mRefs->mStrong;
}
-void RefBase::setDestroyer(RefBase::Destroyer* destroyer) {
- mRefs->mDestroyer = destroyer;
-}
-
RefBase* RefBase::weakref_type::refBase() const
{
return static_cast<const weakref_impl*>(this)->mBase;
@@ -417,6 +402,7 @@
LOG_ASSERT(c >= 0, "incWeak called on %p after last weak ref", this);
}
+
void RefBase::weakref_type::decWeak(const void* id)
{
weakref_impl* const impl = static_cast<weakref_impl*>(this);
@@ -424,30 +410,27 @@
const int32_t c = android_atomic_dec(&impl->mWeak);
LOG_ASSERT(c >= 1, "decWeak called on %p too many times", this);
if (c != 1) return;
-
- if ((impl->mFlags&OBJECT_LIFETIME_WEAK) != OBJECT_LIFETIME_WEAK) {
+
+ if ((impl->mFlags&OBJECT_LIFETIME_WEAK) == OBJECT_LIFETIME_STRONG) {
+ // This is the regular lifetime case. The object is destroyed
+ // when the last strong reference goes away. Since weakref_impl
+ // outlive the object, it is not destroyed in the dtor, and
+ // we'll have to do it here.
if (impl->mStrong == INITIAL_STRONG_VALUE) {
- if (impl->mBase) {
- if (impl->mDestroyer) {
- impl->mDestroyer->destroy(impl->mBase);
- } else {
- delete impl->mBase;
- }
- }
+ // Special case: we never had a strong reference, so we need to
+ // destroy the object now.
+ delete impl->mBase;
} else {
// LOGV("Freeing refs %p of old RefBase %p\n", this, impl->mBase);
delete impl;
}
} else {
+ // less common case: lifetime is OBJECT_LIFETIME_{WEAK|FOREVER}
impl->mBase->onLastWeakRef(id);
- if ((impl->mFlags&OBJECT_LIFETIME_FOREVER) != OBJECT_LIFETIME_FOREVER) {
- if (impl->mBase) {
- if (impl->mDestroyer) {
- impl->mDestroyer->destroy(impl->mBase);
- } else {
- delete impl->mBase;
- }
- }
+ if ((impl->mFlags&OBJECT_LIFETIME_MASK) == OBJECT_LIFETIME_WEAK) {
+ // this is the OBJECT_LIFETIME_WEAK case. The last weak-reference
+ // is gone, we can destroy the object.
+ delete impl->mBase;
}
}
}
@@ -569,11 +552,23 @@
RefBase::~RefBase()
{
- if ((mRefs->mFlags & OBJECT_LIFETIME_WEAK) == OBJECT_LIFETIME_WEAK) {
- if (mRefs->mWeak == 0) {
- delete mRefs;
+ if (mRefs->mStrong == INITIAL_STRONG_VALUE) {
+ // we never acquired a strong (and/or weak) reference on this object.
+ delete mRefs;
+ } else {
+ // life-time of this object is extended to WEAK or FOREVER, in
+ // which case weakref_impl doesn't out-live the object and we
+ // can free it now.
+ if ((mRefs->mFlags & OBJECT_LIFETIME_MASK) != OBJECT_LIFETIME_STRONG) {
+ // It's possible that the weak count is not 0 if the object
+ // re-acquired a weak reference in its destructor
+ if (mRefs->mWeak == 0) {
+ delete mRefs;
+ }
}
}
+ // for debugging purposes, clear this.
+ const_cast<weakref_impl*&>(mRefs) = NULL;
}
void RefBase::extendObjectLifetime(int32_t mode)
diff --git a/opengl/tests/swapinterval/swapinterval.cpp b/opengl/tests/swapinterval/swapinterval.cpp
index df53b62..8ca031b 100644
--- a/opengl/tests/swapinterval/swapinterval.cpp
+++ b/opengl/tests/swapinterval/swapinterval.cpp
@@ -48,31 +48,35 @@
EGLNativeWindowType window = android_createDisplaySurface();
dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
- eglInitialize(dpy, 0 ,0) ;//&majorVersion, &minorVersion);
+ eglInitialize(dpy, &majorVersion, &minorVersion);
eglGetConfigs(dpy, NULL, 0, &numConfigs);
printf("# configs = %d\n", numConfigs);
status_t err = EGLUtils::selectConfigForNativeWindow(
dpy, configAttribs, window, &config);
if (err) {
- fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+ fprintf(stderr, "error: %s", EGLUtils::strerror(eglGetError()));
+ eglTerminate(dpy);
return 0;
}
- EGLint r,g,b,a;
+ EGLint r,g,b,a, vid;
eglGetConfigAttrib(dpy, config, EGL_RED_SIZE, &r);
eglGetConfigAttrib(dpy, config, EGL_GREEN_SIZE, &g);
eglGetConfigAttrib(dpy, config, EGL_BLUE_SIZE, &b);
eglGetConfigAttrib(dpy, config, EGL_ALPHA_SIZE, &a);
+ eglGetConfigAttrib(dpy, config, EGL_NATIVE_VISUAL_ID, &vid);
surface = eglCreateWindowSurface(dpy, config, window, NULL);
if (surface == EGL_NO_SURFACE) {
EGLint err = eglGetError();
- fprintf(stderr, "%s, config=%p, format = %d-%d-%d-%d\n",
- EGLUtils::strerror(err), config, r,g,b,a);
+ fprintf(stderr, "error: %s, config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
+ EGLUtils::strerror(err), config, r,g,b,a, vid);
+ eglTerminate(dpy);
return 0;
} else {
- printf("config=%p, format = %d-%d-%d-%d\n", config, r,g,b,a);
+ printf("config=%p, format = %d-%d-%d-%d, visual-id = %d\n",
+ config, r,g,b,a, vid);
}
context = eglCreateContext(dpy, config, NULL, NULL);
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index b178e49..51eb0a3 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -5,6 +5,7 @@
Layer.cpp \
LayerBase.cpp \
LayerDim.cpp \
+ DdmConnection.cpp \
DisplayHardware/DisplayHardware.cpp \
DisplayHardware/DisplayHardwareBase.cpp \
DisplayHardware/HWComposer.cpp \
@@ -36,6 +37,9 @@
libui \
libgui
+# this is only needed for DDMS debugging
+LOCAL_SHARED_LIBRARIES += libdvm libandroid_runtime
+
LOCAL_C_INCLUDES := \
$(call include-path-for, corecg graphics)
diff --git a/services/surfaceflinger/DdmConnection.cpp b/services/surfaceflinger/DdmConnection.cpp
new file mode 100644
index 0000000..467a915
--- /dev/null
+++ b/services/surfaceflinger/DdmConnection.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android_runtime/AndroidRuntime.h>
+
+#include "jni.h"
+#include "DdmConnection.h"
+
+extern "C" jint Java_com_android_internal_util_WithFramework_registerNatives(
+ JNIEnv* env, jclass clazz);
+
+namespace android {
+
+void DdmConnection::start(const char* name) {
+ JavaVM* vm;
+ JNIEnv* env;
+
+ // start a VM
+ JavaVMInitArgs args;
+ JavaVMOption opt;
+
+ opt.optionString =
+ "-agentlib:jdwp=transport=dt_android_adb,suspend=n,server=y";
+
+ args.version = JNI_VERSION_1_4;
+ args.options = &opt;
+ args.nOptions = 1;
+ args.ignoreUnrecognized = JNI_FALSE;
+
+ if (JNI_CreateJavaVM(&vm, &env, &args) == 0) {
+ jclass startClass;
+ jmethodID startMeth;
+
+ // register native code
+ if (Java_com_android_internal_util_WithFramework_registerNatives(env, 0) == 0) {
+ // set our name by calling DdmHandleAppName.setAppName()
+ startClass = env->FindClass("android/ddm/DdmHandleAppName");
+ if (startClass) {
+ startMeth = env->GetStaticMethodID(startClass,
+ "setAppName", "(Ljava/lang/String;)V");
+ if (startMeth) {
+ jstring str = env->NewStringUTF(name);
+ env->CallStaticVoidMethod(startClass, startMeth, str);
+ env->DeleteLocalRef(str);
+ }
+ }
+
+ // initialize DDMS communication by calling
+ // DdmRegister.registerHandlers()
+ startClass = env->FindClass("android/ddm/DdmRegister");
+ if (startClass) {
+ startMeth = env->GetStaticMethodID(startClass,
+ "registerHandlers", "()V");
+ if (startMeth) {
+ env->CallStaticVoidMethod(startClass, startMeth);
+ }
+ }
+ }
+ }
+}
+
+}; // namespace android
diff --git a/services/surfaceflinger/DdmConnection.h b/services/surfaceflinger/DdmConnection.h
new file mode 100644
index 0000000..91b737c
--- /dev/null
+++ b/services/surfaceflinger/DdmConnection.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SF_DDM_CONNECTION
+#define ANDROID_SF_DDM_CONNECTION
+
+namespace android {
+
+class DdmConnection {
+public:
+ static void start(const char* name);
+};
+
+}; // namespace android
+
+#endif /* ANDROID_SF_DDM_CONNECTION */
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 505c843..0425fc3 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -65,14 +65,9 @@
glGenTextures(1, &mTextureName);
}
-void Layer::destroy(RefBase const* base) {
- mFlinger->destroyLayer(static_cast<LayerBase const*>(base));
-}
-
void Layer::onFirstRef()
{
LayerBaseClient::onFirstRef();
- setDestroyer(this);
struct FrameQueuedListener : public SurfaceTexture::FrameAvailableListener {
FrameQueuedListener(Layer* layer) : mLayer(layer) { }
@@ -93,7 +88,16 @@
Layer::~Layer()
{
- glDeleteTextures(1, &mTextureName);
+ class MessageDestroyGLState : public MessageBase {
+ GLuint texture;
+ public:
+ MessageDestroyGLState(GLuint texture) : texture(texture) { }
+ virtual bool handler() {
+ glDeleteTextures(1, &texture);
+ return true;
+ }
+ };
+ mFlinger->postMessageAsync( new MessageDestroyGLState(mTextureName) );
}
void Layer::onFrameQueued() {
@@ -187,14 +191,13 @@
* 1) buffer orientation/flip/mirror
* 2) state transformation (window manager)
* 3) layer orientation (screen orientation)
+ * mOrientation is already the composition of (2) and (3)
* (NOTE: the matrices are multiplied in reverse order)
*/
const Transform bufferOrientation(mCurrentTransform);
- const Transform& stateTransform(s.transform);
const Transform layerOrientation(mOrientation);
-
- const Transform tr(layerOrientation * stateTransform * bufferOrientation);
+ const Transform tr(layerOrientation * bufferOrientation);
// this gives us only the "orientation" component of the transform
const uint32_t finalTransform = tr.getOrientation();
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index ddfc666..d3ddab4 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -45,7 +45,7 @@
// ---------------------------------------------------------------------------
-class Layer : public LayerBaseClient, private RefBase::Destroyer
+class Layer : public LayerBaseClient
{
public:
Layer(SurfaceFlinger* flinger, DisplayID display,
@@ -78,7 +78,6 @@
inline const sp<FreezeLock>& getFreezeLock() const { return mFreezeLock; }
protected:
- virtual void destroy(RefBase const* base);
virtual void onFirstRef();
virtual void dump(String8& result, char* scratch, size_t size) const;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 4a27701..a68ab30 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -47,6 +47,7 @@
#include "clz.h"
#include "GLExtensions.h"
+#include "DdmConnection.h"
#include "Layer.h"
#include "LayerDim.h"
#include "SurfaceFlinger.h"
@@ -90,6 +91,7 @@
mFreezeDisplayTime(0),
mDebugRegion(0),
mDebugBackground(0),
+ mDebugDDMS(0),
mDebugDisableHWC(0),
mDebugInSwapBuffers(0),
mLastSwapBufferTime(0),
@@ -108,13 +110,22 @@
// debugging stuff...
char value[PROPERTY_VALUE_MAX];
+
property_get("debug.sf.showupdates", value, "0");
mDebugRegion = atoi(value);
+
property_get("debug.sf.showbackground", value, "0");
mDebugBackground = atoi(value);
+ property_get("debug.sf.ddms", value, "0");
+ mDebugDDMS = atoi(value);
+ if (mDebugDDMS) {
+ DdmConnection::start(getServiceName());
+ }
+
LOGI_IF(mDebugRegion, "showupdates enabled");
LOGI_IF(mDebugBackground, "showbackground enabled");
+ LOGI_IF(mDebugDDMS, "DDMS debugging enabled");
}
SurfaceFlinger::~SurfaceFlinger()
@@ -402,9 +413,6 @@
{
waitForEvent();
- // call Layer's destructor
- handleDestroyLayers();
-
// check for transactions
if (UNLIKELY(mConsoleSignals)) {
handleConsoleEvents();
@@ -597,31 +605,6 @@
commitTransaction();
}
-void SurfaceFlinger::destroyLayer(LayerBase const* layer)
-{
- Mutex::Autolock _l(mDestroyedLayerLock);
- mDestroyedLayers.add(layer);
- signalEvent();
-}
-
-void SurfaceFlinger::handleDestroyLayers()
-{
- Vector<LayerBase const *> destroyedLayers;
-
- { // scope for the lock
- Mutex::Autolock _l(mDestroyedLayerLock);
- destroyedLayers = mDestroyedLayers;
- mDestroyedLayers.clear();
- }
-
- // call destructors without a lock held
- const size_t count = destroyedLayers.size();
- for (size_t i=0 ; i<count ; i++) {
- //LOGD("destroying %s", destroyedLayers[i]->getName().string());
- delete destroyedLayers[i];
- }
-}
-
sp<FreezeLock> SurfaceFlinger::getFreezeLock() const
{
return new FreezeLock(const_cast<SurfaceFlinger *>(this));
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 15661f0..89df0de 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -189,7 +189,6 @@
status_t addLayer(const sp<LayerBase>& layer);
status_t invalidateLayerVisibility(const sp<LayerBase>& layer);
void invalidateHwcGeometry();
- void destroyLayer(LayerBase const* layer);
sp<Layer> getLayer(const sp<ISurface>& sur) const;
@@ -266,7 +265,6 @@
void handleConsoleEvents();
void handleTransaction(uint32_t transactionFlags);
void handleTransactionLocked(uint32_t transactionFlags);
- void handleDestroyLayers();
void computeVisibleRegions(
const LayerVector& currentLayers,
@@ -373,6 +371,7 @@
// don't use a lock for these, we don't care
int mDebugRegion;
int mDebugBackground;
+ int mDebugDDMS;
int mDebugDisableHWC;
volatile nsecs_t mDebugInSwapBuffers;
nsecs_t mLastSwapBufferTime;