upload android base code part6

android/device/generic/goldfish/camera/EmulatedBaseCamera.cpp

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+/*
+ * 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.
+ */
+
+/*
+ * Contains implementation of a class EmulatedBaseCamera that encapsulates
+ * functionality common to all emulated camera device versions ("fake",
+ * "webcam", "video file", "cam2.0" etc.).  Instances of this class (for each
+ * emulated camera) are created during the construction of the
+ * EmulatedCameraFactory instance.  This class serves as an entry point for all
+ * camera API calls that are common across all versions of the
+ * camera_device_t/camera_module_t structures.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "EmulatedCamera_BaseCamera"
+#include <cutils/log.h>
+
+#include "EmulatedBaseCamera.h"
+
+namespace android {
+
+EmulatedBaseCamera::EmulatedBaseCamera(int cameraId,
+        uint32_t cameraVersion,
+        struct hw_device_t* device,
+        struct hw_module_t* module)
+        : mCameraInfo(NULL),
+          mCameraID(cameraId),
+          mCameraDeviceVersion(cameraVersion)
+{
+    /*
+     * Initialize camera_device descriptor for this object.
+     */
+
+    /* Common header */
+    device->tag = HARDWARE_DEVICE_TAG;
+    device->version = cameraVersion;
+    device->module = module;
+    device->close = NULL; // Must be filled in by child implementation
+}
+
+EmulatedBaseCamera::~EmulatedBaseCamera()
+{
+}
+
+status_t EmulatedBaseCamera::getCameraInfo(struct camera_info* info)
+{
+    ALOGV("%s", __FUNCTION__);
+
+    info->device_version = mCameraDeviceVersion;
+    if (mCameraDeviceVersion >= HARDWARE_DEVICE_API_VERSION(2, 0)) {
+        info->static_camera_characteristics = mCameraInfo;
+    } else {
+        info->static_camera_characteristics = (camera_metadata_t*)0xcafef00d;
+    }
+
+    return NO_ERROR;
+}
+
+status_t EmulatedBaseCamera::plugCamera() {
+    ALOGE("%s: not supported", __FUNCTION__);
+    return INVALID_OPERATION;
+}
+
+status_t EmulatedBaseCamera::unplugCamera() {
+    ALOGE("%s: not supported", __FUNCTION__);
+    return INVALID_OPERATION;
+}
+
+camera_device_status_t EmulatedBaseCamera::getHotplugStatus() {
+    return CAMERA_DEVICE_STATUS_PRESENT;
+}
+
+
+
+
+} /* namespace android */