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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.
*/
#ifndef ANDROID_HARDWARE_FAKECAMERA_H
#define ANDROID_HARDWARE_FAKECAMERA_H
#include <sys/types.h>
namespace android {
/*
* FakeCamera is used in the CameraHardwareStub to provide a fake video feed
* when the system does not have a camera in hardware.
* The fake video is a moving black and white checkerboard background with a
* bouncing gray square in the foreground.
* This class is not thread-safe.
*
* TODO: Since the major methods provides a raw/uncompressed video feed, rename
* this class to RawVideoSource.
*/
class FakeCamera {
public:
FakeCamera(int width, int height);
~FakeCamera();
void setSize(int width, int height);
void getNextFrameAsYuv422(uint8_t *buffer);
// Write to the fd a string representing the current state.
void dump(int fd) const;
private:
// TODO: remove the uint16_t buffer param everywhere since it is a field of
// this class.
void getNextFrameAsRgb565(uint16_t *buffer);
void drawSquare(uint16_t *buffer, int x, int y, int size, int color, int shadow);
void drawCheckerboard(uint16_t *buffer, int size);
static const int kRed = 0xf800;
static const int kGreen = 0x07c0;
static const int kBlue = 0x003e;
int mWidth, mHeight;
int mCounter;
int mCheckX, mCheckY;
uint16_t *mTmpRgb16Buffer;
};
}; // namespace android
#endif // ANDROID_HARDWARE_FAKECAMERA_H
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