Add TV Out support

3 files changed, 81 insertions, 0 deletions

diff --git a/tvouthack/Android.mk b/tvouthack/Android.mk
new file mode 100644
index 0000000..a38be88
--- /dev/null
+++ b/tvouthack/Android.mk
@@ -0,0 +1,27 @@
+# Copyright (C) 2011 Pawit Pornkitprasan
+#
+# 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.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := main.cpp
+
+LOCAL_SHARED_LIBRARIES := libutils libbinder
+
+LOCAL_MODULE := tvouthack
+
+include $(BUILD_EXECUTABLE)
+
diff --git a/tvouthack/README.txt b/tvouthack/README.txt
new file mode 100644
index 0000000..bea0307
--- /dev/null
+++ b/tvouthack/README.txt
@@ -0,0 +1,5 @@
+The proprietary daemon "tvoutserver" expects the system to tell it
+when the frames should be refreshed. Samsung implemented this by
+integrating TV Out in surfaceflinger and other graphic services.
+However, we will just run a daemon that brute sends the signal every
+150 ms.
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diff --git a/tvouthack/main.cpp b/tvouthack/main.cpp
new file mode 100644
index 0000000..85005c7
--- /dev/null
+++ b/tvouthack/main.cpp
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <utils/Log.h>
+
+using namespace android;
+
+int main() {
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder;
+
+    do {
+        binder = sm->getService(String16("tvout"));
+        if (binder != 0) break;
+        usleep(500000); // 0.5 s
+    } while(true);
+
+    int ret;
+
+    Parcel s2, r2;
+    s2.writeInterfaceToken(String16("android.hardware.ITvOutService"));
+    binder->transact(1, s2, &r2);
+    sp<IBinder> binder2 = r2.readStrongBinder();
+
+    while (true) {
+        {
+            Parcel send, reply;
+            int code = 4;
+            send.writeInterfaceToken(String16("android.hardware.ITvOut"));
+            int ret = binder2->transact(code, send, &reply);
+        }
+        {
+            Parcel send, reply;
+            int code = 27;
+            send.writeInterfaceToken(String16("android.hardware.ITvOut"));
+            int ret = binder2->transact(code, send, &reply);
+        }
+        {
+            Parcel send, reply;
+            int code = 13;
+            send.writeInterfaceToken(String16("android.hardware.ITvOut"));
+            send.writeInt32(0);
+            int ret = binder2->transact(code, send, &reply);
+        }
+        usleep(15000); // Should give ~60 fps
+    }
+    return 0;
+}
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