1 files changed, 153 insertions, 0 deletions
diff --git a/libs/ui/ICameraClient.cpp b/libs/ui/ICameraClient.cpp
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--- /dev/null
+++ b/libs/ui/ICameraClient.cpp
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+/*
+**
+** Copyright 2008, 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 <ui/ICameraClient.h>
+
+namespace android {
+
+enum {
+    SHUTTER_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
+    RAW_CALLBACK,
+    JPEG_CALLBACK,
+    FRAME_CALLBACK,
+    ERROR_CALLBACK,
+    AUTOFOCUS_CALLBACK
+};
+
+class BpCameraClient: public BpInterface<ICameraClient>
+{
+public:
+    BpCameraClient(const sp<IBinder>& impl)
+        : BpInterface<ICameraClient>(impl)
+    {
+    }
+
+    // callback to let the app know the shutter has closed, ideal for playing the shutter sound
+    void shutterCallback()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        remote()->transact(SHUTTER_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    // callback from camera service to app with picture data
+    void rawCallback(const sp<IMemory>& picture)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        data.writeStrongBinder(picture->asBinder());
+        remote()->transact(RAW_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    // callback from camera service to app with picture data
+    void jpegCallback(const sp<IMemory>& picture)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        data.writeStrongBinder(picture->asBinder());
+        remote()->transact(JPEG_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    // callback from camera service to app with video frame data
+    void frameCallback(const sp<IMemory>& frame)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        data.writeStrongBinder(frame->asBinder());
+        remote()->transact(FRAME_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    // callback from camera service to app to report error
+    void errorCallback(status_t error)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        data.writeInt32(error);
+        remote()->transact(ERROR_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+
+    // callback from camera service to app to report autofocus completion
+    void autoFocusCallback(bool focused)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICameraClient::getInterfaceDescriptor());
+        data.writeInt32(focused);
+        remote()->transact(AUTOFOCUS_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(CameraClient, "android.hardware.ICameraClient");
+
+// ----------------------------------------------------------------------
+
+#define CHECK_INTERFACE(interface, data, reply) \
+        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
+            LOGW("Call incorrectly routed to " #interface); \
+            return PERMISSION_DENIED; \
+        } } while (0)
+
+status_t BnCameraClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch(code) {
+        case SHUTTER_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            shutterCallback();
+            return NO_ERROR;
+        } break;
+        case RAW_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            sp<IMemory> picture = interface_cast<IMemory>(data.readStrongBinder());
+            rawCallback(picture);
+            return NO_ERROR;
+        } break;
+        case JPEG_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            sp<IMemory> picture = interface_cast<IMemory>(data.readStrongBinder());
+            jpegCallback(picture);
+            return NO_ERROR;
+        } break;
+        case FRAME_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            sp<IMemory> frame = interface_cast<IMemory>(data.readStrongBinder());
+            frameCallback(frame);
+            return NO_ERROR;
+        } break;
+        case ERROR_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            status_t error = data.readInt32();
+            errorCallback(error);
+            return NO_ERROR;
+        } break;
+        case AUTOFOCUS_CALLBACK: {
+            CHECK_INTERFACE(ICameraClient, data, reply);
+            bool focused = (bool)data.readInt32();
+            autoFocusCallback(focused);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+