85cfdd0112
This change makes the camera HAL interface take an ANativeWindow interface from which all the camera preview buffers will be allocated. The framework code running in application processes now passes a Surface object rather than an ISurface to the camera server via Binder when setting the preview surface. The camera server then forwards that Surface object (which implements the ANativeWindow interface) to the camera HAL, which uses it to communicate with SurfaceFlinger to allocate the camera preview buffers. Change-Id: Ie438f721559cd7de5e4f848a26d96360dda07b5f
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_ICAMERA_H
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#define ANDROID_HARDWARE_ICAMERA_H
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#include <utils/RefBase.h>
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#include <binder/IInterface.h>
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#include <binder/Parcel.h>
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#include <surfaceflinger/Surface.h>
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#include <binder/IMemory.h>
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#include <utils/String8.h>
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#include <camera/Camera.h>
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namespace android {
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class ICameraClient;
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class ICamera: public IInterface
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{
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public:
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DECLARE_META_INTERFACE(Camera);
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virtual void disconnect() = 0;
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// connect new client with existing camera remote
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virtual status_t connect(const sp<ICameraClient>& client) = 0;
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// prevent other processes from using this ICamera interface
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virtual status_t lock() = 0;
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// allow other processes to use this ICamera interface
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virtual status_t unlock() = 0;
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// pass the buffered Surface to the camera service
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virtual status_t setPreviewDisplay(const sp<Surface>& surface) = 0;
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// set the preview callback flag to affect how the received frames from
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// preview are handled.
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virtual void setPreviewCallbackFlag(int flag) = 0;
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// start preview mode, must call setPreviewDisplay first
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virtual status_t startPreview() = 0;
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// stop preview mode
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virtual void stopPreview() = 0;
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// get preview state
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virtual bool previewEnabled() = 0;
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// start recording mode
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virtual status_t startRecording() = 0;
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// stop recording mode
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virtual void stopRecording() = 0;
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// get recording state
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virtual bool recordingEnabled() = 0;
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// release a recording frame
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virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0;
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// auto focus
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virtual status_t autoFocus() = 0;
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// cancel auto focus
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virtual status_t cancelAutoFocus() = 0;
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// take a picture
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virtual status_t takePicture() = 0;
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// set preview/capture parameters - key/value pairs
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virtual status_t setParameters(const String8& params) = 0;
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// get preview/capture parameters - key/value pairs
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virtual String8 getParameters() const = 0;
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// send command to camera driver
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virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
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};
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// ----------------------------------------------------------------------------
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class BnCamera: public BnInterface<ICamera>
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{
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public:
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virtual status_t onTransact( uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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};
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}; // namespace android
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#endif
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