Add logging of various important graphics events
There are 16 events logged in the event log:
SF_APP_DEQUEUE_BEFORE
SF_APP_DEQUEUE_AFTER
SF_APP_LOCK_BEFORE
SF_APP_LOCK_AFTER
SF_APP_QUEUE
SF_REPAINT
SF_COMPOSITION_COMPLETE
SF_UNLOCK_CLIENTS
SF_SWAP_BUFFERS
SF_REPAINT_DONE
SF_FB_POST_BEFORE
SF_FB_POST_AFTER
SF_FB_DEQUEUE_BEFORE
SF_FB_DEQUEUE_AFTER
SF_FB_LOCK_BEFORE
SF_FB_LOCK_AFTER
all events log the buffer conserned and a timestamp in microseconds.
by default the logging is not enabled, to turn it on:
adb shell service call SurfaceFlinger 1006 i31 1
adb shell setprop debug.graphic_log 1
The effect is immediate in SurfaceFlinger, but applications need to be
restarted.
Change-Id: Ifc2e31f7aed072d9a7dede20ff2ce59231edbec1
diff --git a/libs/ui/FramebufferNativeWindow.cpp b/libs/ui/FramebufferNativeWindow.cpp
index 6f8948d..a36d555 100644
--- a/libs/ui/FramebufferNativeWindow.cpp
+++ b/libs/ui/FramebufferNativeWindow.cpp
@@ -29,6 +29,7 @@
#include <ui/Rect.h>
#include <ui/FramebufferNativeWindow.h>
+#include <ui/GraphicLog.h>
#include <EGL/egl.h>
@@ -174,6 +175,14 @@
return fb->setSwapInterval(fb, interval);
}
+// only for debugging / logging
+int FramebufferNativeWindow::getCurrentBufferIndex() const
+{
+ Mutex::Autolock _l(mutex);
+ const int index = mCurrentBufferIndex;
+ return index;
+}
+
int FramebufferNativeWindow::dequeueBuffer(ANativeWindow* window,
android_native_buffer_t** buffer)
{
@@ -181,18 +190,24 @@
Mutex::Autolock _l(self->mutex);
framebuffer_device_t* fb = self->fbDev;
+ int index = self->mBufferHead++;
+ if (self->mBufferHead >= self->mNumBuffers)
+ self->mBufferHead = 0;
+
+ GraphicLog& logger(GraphicLog::getInstance());
+ logger.log(GraphicLog::SF_FB_DEQUEUE_BEFORE, index);
+
// wait for a free buffer
while (!self->mNumFreeBuffers) {
self->mCondition.wait(self->mutex);
}
// get this buffer
self->mNumFreeBuffers--;
- int index = self->mBufferHead++;
- if (self->mBufferHead >= self->mNumBuffers)
- self->mBufferHead = 0;
+ self->mCurrentBufferIndex = index;
*buffer = self->buffers[index].get();
+ logger.log(GraphicLog::SF_FB_DEQUEUE_AFTER, index);
return 0;
}
@@ -202,11 +217,17 @@
FramebufferNativeWindow* self = getSelf(window);
Mutex::Autolock _l(self->mutex);
+ const int index = self->mCurrentBufferIndex;
+ GraphicLog& logger(GraphicLog::getInstance());
+ logger.log(GraphicLog::SF_FB_LOCK_BEFORE, index);
+
// wait that the buffer we're locking is not front anymore
while (self->front == buffer) {
self->mCondition.wait(self->mutex);
}
+ logger.log(GraphicLog::SF_FB_LOCK_AFTER, index);
+
return NO_ERROR;
}
@@ -217,7 +238,15 @@
Mutex::Autolock _l(self->mutex);
framebuffer_device_t* fb = self->fbDev;
buffer_handle_t handle = static_cast<NativeBuffer*>(buffer)->handle;
+
+ const int index = self->mCurrentBufferIndex;
+ GraphicLog& logger(GraphicLog::getInstance());
+ logger.log(GraphicLog::SF_FB_POST_BEFORE, index);
+
int res = fb->post(fb, handle);
+
+ logger.log(GraphicLog::SF_FB_POST_AFTER, index);
+
self->front = static_cast<NativeBuffer*>(buffer);
self->mNumFreeBuffers++;
self->mCondition.broadcast();