as a debug option SrufaceFlinger can now connect to DDMS
this is disabled by default. To enable:
setprop debug.sf.ddms 1
this debug option requires to restart SurfaceFlinger
Change-Id: Ic2f8050b29911b55bcd21721648b6978700c277d
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/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 082effe..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()
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 6f93f5b..89df0de 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -371,6 +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;