Implement remote display service stubs.

Change-Id: I582ed000026bba6d116db8304e15a3c52f8a9a01

6 files changed, 205 insertions, 1 deletions

diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index bcce063..76308e8 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -27,6 +27,8 @@ LOCAL_SRC_FILES:= \
     IMediaRecorderClient.cpp \
     IMediaPlayer.cpp \
     IMediaRecorder.cpp \
+    IRemoteDisplay.cpp \
+    IRemoteDisplayClient.cpp \
     IStreamSource.cpp \
     Metadata.cpp \
     mediarecorder.cpp \
diff --git a/media/libmedia/IMediaPlayerService.cpp b/media/libmedia/IMediaPlayerService.cpp
index d3e2e19..c2ec439 100644
--- a/media/libmedia/IMediaPlayerService.cpp
+++ b/media/libmedia/IMediaPlayerService.cpp
@@ -24,9 +24,12 @@
 #include <media/IMediaPlayerService.h>
 #include <media/IMediaRecorder.h>
 #include <media/IOMX.h>
+#include <media/IRemoteDisplay.h>
+#include <media/IRemoteDisplayClient.h>
 #include <media/IStreamSource.h>
 
 #include <utils/Errors.h>  // for status_t
+#include <utils/String8.h>
 
 namespace android {
 
@@ -40,7 +43,8 @@ enum {
     MAKE_CRYPTO,
     ENABLE_REMOTE_DISPLAY,
     ADD_BATTERY_DATA,
-    PULL_BATTERY_DATA
+    PULL_BATTERY_DATA,
+    LISTEN_FOR_REMOTE_DISPLAY,
 };
 
 class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
@@ -148,6 +152,17 @@ public:
         data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
         return remote()->transact(PULL_BATTERY_DATA, data, reply);
     }
+
+    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client,
+            const String8& iface)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
+        data.writeStrongBinder(client->asBinder());
+        data.writeString8(iface);
+        remote()->transact(LISTEN_FOR_REMOTE_DISPLAY, data, &reply);
+        return interface_cast<IRemoteDisplay>(reply.readStrongBinder());
+    }
 };
 
 IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService");
@@ -242,6 +257,15 @@ status_t BnMediaPlayerService::onTransact(
             pullBatteryData(reply);
             return NO_ERROR;
         } break;
+        case LISTEN_FOR_REMOTE_DISPLAY: {
+            CHECK_INTERFACE(IMediaPlayerService, data, reply);
+            sp<IRemoteDisplayClient> client(
+                    interface_cast<IRemoteDisplayClient>(data.readStrongBinder()));
+            String8 iface(data.readString8());
+            sp<IRemoteDisplay> display(listenForRemoteDisplay(client, iface));
+            reply->writeStrongBinder(display->asBinder());
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IRemoteDisplay.cpp b/media/libmedia/IRemoteDisplay.cpp
new file mode 100644
index 0000000..5d6ab34
--- /dev/null
+++ b/media/libmedia/IRemoteDisplay.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2012 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 <stdint.h>
+#include <sys/types.h>
+
+#include <media/IRemoteDisplay.h>
+
+namespace android {
+
+enum {
+    DISCONNECT = IBinder::FIRST_CALL_TRANSACTION,
+};
+
+class BpRemoteDisplay: public BpInterface<IRemoteDisplay>
+{
+public:
+    BpRemoteDisplay(const sp<IBinder>& impl)
+        : BpInterface<IRemoteDisplay>(impl)
+    {
+    }
+
+    status_t disconnect()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IRemoteDisplay::getInterfaceDescriptor());
+        remote()->transact(DISCONNECT, data, &reply);
+        return reply.readInt32();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(RemoteDisplay, "android.media.IRemoteDisplay");
+
+// ----------------------------------------------------------------------
+
+status_t BnRemoteDisplay::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case DISCONNECT: {
+            CHECK_INTERFACE(IRemoteDisplay, data, reply);
+            reply->writeInt32(disconnect());
+            return NO_ERROR;
+        }
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}; // namespace android
diff --git a/media/libmedia/IRemoteDisplayClient.cpp b/media/libmedia/IRemoteDisplayClient.cpp
new file mode 100644
index 0000000..4a1b570
--- /dev/null
+++ b/media/libmedia/IRemoteDisplayClient.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2012 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 <stdint.h>
+#include <sys/types.h>
+
+#include <media/IRemoteDisplayClient.h>
+#include <gui/ISurfaceTexture.h>
+#include <utils/String8.h>
+
+namespace android {
+
+enum {
+    ON_DISPLAY_CONNECTED = IBinder::FIRST_CALL_TRANSACTION,
+    ON_DISPLAY_DISCONNECTED,
+    ON_DISPLAY_ERROR,
+};
+
+class BpRemoteDisplayClient: public BpInterface<IRemoteDisplayClient>
+{
+public:
+    BpRemoteDisplayClient(const sp<IBinder>& impl)
+        : BpInterface<IRemoteDisplayClient>(impl)
+    {
+    }
+
+    void onDisplayConnected(const sp<ISurfaceTexture>& surfaceTexture,
+            uint32_t width, uint32_t height, uint32_t flags)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
+        data.writeStrongBinder(surfaceTexture->asBinder());
+        data.writeInt32(width);
+        data.writeInt32(height);
+        data.writeInt32(flags);
+        remote()->transact(ON_DISPLAY_CONNECTED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void onDisplayDisconnected()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
+        remote()->transact(ON_DISPLAY_DISCONNECTED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    void onDisplayError(int32_t error)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
+        data.writeInt32(error);
+        remote()->transact(ON_DISPLAY_ERROR, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(RemoteDisplayClient, "android.media.IRemoteDisplayClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnRemoteDisplayClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case ON_DISPLAY_CONNECTED: {
+            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
+            sp<ISurfaceTexture> surfaceTexture(
+                    interface_cast<ISurfaceTexture>(data.readStrongBinder()));
+            uint32_t width = data.readInt32();
+            uint32_t height = data.readInt32();
+            uint32_t flags = data.readInt32();
+            onDisplayConnected(surfaceTexture, width, height, flags);
+            return NO_ERROR;
+        }
+        case ON_DISPLAY_DISCONNECTED: {
+            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
+            onDisplayDisconnected();
+            return NO_ERROR;
+        }
+        case ON_DISPLAY_ERROR: {
+            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
+            int32_t error = data.readInt32();
+            onDisplayError(error);
+            return NO_ERROR;
+        }
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}; // namespace android
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 166bae9..ae55642 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -44,6 +44,8 @@
 #include <utils/SystemClock.h>
 #include <utils/Vector.h>
 
+#include <media/IRemoteDisplay.h>
+#include <media/IRemoteDisplayClient.h>
 #include <media/MediaPlayerInterface.h>
 #include <media/mediarecorder.h>
 #include <media/MediaMetadataRetrieverInterface.h>
@@ -279,6 +281,12 @@ sp<ICrypto> MediaPlayerService::makeCrypto() {
     return new Crypto;
 }
 
+sp<IRemoteDisplay> MediaPlayerService::listenForRemoteDisplay(
+        const sp<IRemoteDisplayClient>& client, const String8& iface) {
+    // TODO: implement me!
+    return NULL;
+}
+
 status_t MediaPlayerService::enableRemoteDisplay(const char *iface) {
     Mutex::Autolock autoLock(mLock);
 
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 2577c58..ca8a96f 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -41,6 +41,8 @@ class AudioTrack;
 class IMediaRecorder;
 class IMediaMetadataRetriever;
 class IOMX;
+class IRemoteDisplay;
+class IRemoteDisplayClient;
 class MediaRecorderClient;
 struct RemoteDisplay;
 
@@ -248,6 +250,9 @@ public:
     virtual sp<IMemory>         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat);
     virtual sp<IOMX>            getOMX();
     virtual sp<ICrypto>         makeCrypto();
+
+    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client,
+            const String8& iface);
     virtual status_t            enableRemoteDisplay(const char *iface);
 
     virtual status_t            dump(int fd, const Vector<String16>& args);