/* ** ** 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> #include <stdint.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 getNextFrameAsYuv420(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