Pass sp<Fence>s around instead of file descriptors

Change-Id: Iac70584a2207940730e8f803a543e4e9a4000c47

9 files changed, 20 insertions, 23 deletions

diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 5493e7d..e16abef 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -235,8 +235,8 @@ void DisplayDevice::swapBuffers(HWComposer& hwc) const {
 
 void DisplayDevice::onSwapBuffersCompleted(HWComposer& hwc) const {
     if (hwc.initCheck() == NO_ERROR) {
-        int fd = hwc.getAndResetReleaseFenceFd(mType);
-        mDisplaySurface->onFrameCommitted(fd);
+        sp<Fence> fence = hwc.getAndResetReleaseFence(mType);
+        mDisplaySurface->onFrameCommitted(fence);
     }
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/DisplaySurface.h b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
index 6445848..bc717a9 100644
--- a/services/surfaceflinger/DisplayHardware/DisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
@@ -52,7 +52,7 @@ public:
     // hardware composer and a release fence is available for the buffer.
     // Further operations on the buffer can be queued as long as they wait for
     // the fence to signal.
-    virtual void onFrameCommitted(int fenceFd) = 0;
+    virtual void onFrameCommitted(const sp<Fence>& fence) = 0;
 
     virtual void dump(String8& result) const = 0;
 
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
index 83ab38e..c35ac95 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
@@ -140,14 +140,12 @@ void FramebufferSurface::freeBufferLocked(int slotIndex) {
     }
 }
 
-void FramebufferSurface::onFrameCommitted(int fenceFd) {
-    if (fenceFd >= 0) {
-        sp<Fence> fence(new Fence(fenceFd));
-        if (mCurrentBufferSlot != BufferQueue::INVALID_BUFFER_SLOT) {
-            status_t err = addReleaseFence(mCurrentBufferSlot, fence);
-            ALOGE_IF(err, "setReleaseFenceFd: failed to add the fence: %s (%d)",
-                    strerror(-err), err);
-        }
+void FramebufferSurface::onFrameCommitted(const sp<Fence>& fence) {
+    if (fence->isValid() &&
+            mCurrentBufferSlot != BufferQueue::INVALID_BUFFER_SLOT) {
+        status_t err = addReleaseFence(mCurrentBufferSlot, fence);
+        ALOGE_IF(err, "setReleaseFenceFd: failed to add the fence: %s (%d)",
+                strerror(-err), err);
     }
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
index 1402740..164f81f 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
@@ -43,7 +43,7 @@ public:
 
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
-    virtual void onFrameCommitted(int fenceFd);
+    virtual void onFrameCommitted(const sp<Fence>& fence);
 
     // Implementation of DisplaySurface::dump(). Note that ConsumerBase also
     // has a non-virtual dump() with the same signature.
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 8599a29..eb7d128 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -627,9 +627,9 @@ bool HWComposer::hasGlesComposition(int32_t id) const {
     return mDisplayData[id].hasFbComp;
 }
 
-int HWComposer::getAndResetReleaseFenceFd(int32_t id) {
+sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) {
     if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
-        return BAD_INDEX;
+        return Fence::NO_FENCE;
 
     int fd = INVALID_OPERATION;
     if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
@@ -640,7 +640,7 @@ int HWComposer::getAndResetReleaseFenceFd(int32_t id) {
             disp.framebufferTarget->releaseFenceFd = -1;
         }
     }
-    return fd;
+    return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
 }
 
 status_t HWComposer::commit() {
@@ -803,10 +803,10 @@ public:
     virtual uint32_t getHints() const {
         return getLayer()->hints;
     }
-    virtual int getAndResetReleaseFenceFd() {
+    virtual sp<Fence> getAndResetReleaseFence() {
         int fd = getLayer()->releaseFenceFd;
         getLayer()->releaseFenceFd = -1;
-        return fd;
+        return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
     }
     virtual void setAcquireFenceFd(int fenceFd) {
         getLayer()->acquireFenceFd = fenceFd;
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index fdbd2d9..346526a 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -114,7 +114,7 @@ public:
 
     // get the releaseFence file descriptor for a display's framebuffer layer.
     // the release fence is only valid after commit()
-    int getAndResetReleaseFenceFd(int32_t id);
+    sp<Fence> getAndResetReleaseFence(int32_t id);
 
     // needed forward declarations
     class LayerListIterator;
@@ -141,7 +141,7 @@ public:
     public:
         virtual int32_t getCompositionType() const = 0;
         virtual uint32_t getHints() const = 0;
-        virtual int getAndResetReleaseFenceFd() = 0;
+        virtual sp<Fence> getAndResetReleaseFence() = 0;
         virtual void setDefaultState() = 0;
         virtual void setSkip(bool skip) = 0;
         virtual void setBlending(uint32_t blending) = 0;
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index fac6c3e..255b77f 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -70,9 +70,8 @@ status_t VirtualDisplaySurface::advanceFrame() {
     return mHwc.fbPost(mDisplayId, fence, mAcquiredBuffer);
 }
 
-void VirtualDisplaySurface::onFrameCommitted(int fenceFd) {
+void VirtualDisplaySurface::onFrameCommitted(const sp<Fence>& fence) {
     Mutex::Autolock lock(mMutex);
-    sp<Fence> fence(new Fence(fenceFd));
     if (mAcquiredBuffer != NULL) {
         status_t result = mSource->releaseBuffer(fence);
         ALOGE_IF(result != NO_ERROR, "VirtualDisplaySurface \"%s\": "
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index 85a7a87..1347680 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -58,7 +58,7 @@ public:
 
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
-    virtual void onFrameCommitted(int fenceFd);
+    virtual void onFrameCommitted(const sp<Fence>& fence);
     virtual void dump(String8& result) const;
 
 private:
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 1677c76..a4c613c 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -144,7 +144,7 @@ void Layer::onLayerDisplayed(const sp<const DisplayDevice>& hw,
         HWComposer::HWCLayerInterface* layer) {
     if (layer) {
         layer->onDisplayed();
-        mSurfaceFlingerConsumer->setReleaseFence(layer->getAndResetReleaseFenceFd());
+        mSurfaceFlingerConsumer->setReleaseFence(layer->getAndResetReleaseFence());
     }
 }