const char* CameraHal::getPixelFormatConstant(const char* parametersFormat)
{
const char *pixelFormat = NULL;
if ( NULL != parametersFormat ) {
if ( 0 == strcmp(parametersFormat, (const char *) android::CameraParameters::PIXEL_FORMAT_YUV422I) ) {
CAMHAL_LOGVA("CbYCrY format selected");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_YUV422I;
} else if ( (0 == strcmp(parametersFormat, (const char *) android::CameraParameters::PIXEL_FORMAT_YUV420SP)) ||
(0 == strcmp(parametersFormat, (const char *) android::CameraParameters::PIXEL_FORMAT_YUV420P)) ) {
// TODO(XXX): We are treating YV12 the same as YUV420SP
CAMHAL_LOGVA("YUV420SP format selected");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_YUV420SP;
} else if ( 0 == strcmp(parametersFormat, (const char *) android::CameraParameters::PIXEL_FORMAT_RGB565) ) {
CAMHAL_LOGVA("RGB565 format selected");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_RGB565;
} else if ( 0 == strcmp(parametersFormat, (const char *) android::CameraParameters::PIXEL_FORMAT_BAYER_RGGB) ) {
CAMHAL_LOGVA("BAYER format selected");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_BAYER_RGGB;
} else if ( 0 == strcmp(parametersFormat, android::CameraParameters::PIXEL_FORMAT_JPEG) ) {
CAMHAL_LOGVA("JPEG format selected");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_JPEG;
} else {
CAMHAL_LOGEA("Invalid format, NV12 format selected as default");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_YUV420SP;
}
} else {
CAMHAL_LOGEA("Preview format is NULL, defaulting to NV12");
pixelFormat = (const char *) android::CameraParameters::PIXEL_FORMAT_YUV420SP;
}
return pixelFormat;
}
static int sensor_events_listener(int fd, int events, void* data)
{
SensorListener* listener = (SensorListener*) data;
ssize_t num_sensors;
ASensorEvent sen_events[8];
while ((num_sensors = listener->mSensorEventQueue->read(sen_events, 8)) > 0) {
for (int i = 0; i < num_sensors; i++) {
if (sen_events[i].type == Sensor::TYPE_ACCELEROMETER) {
float x = sen_events[i].vector.azimuth;
float y = sen_events[i].vector.pitch;
float z = sen_events[i].vector.roll;
float radius = 0;
int tilt = 0, orient = 0;
CAMHAL_LOGVA("ACCELEROMETER EVENT");
CAMHAL_LOGVB(" azimuth = %f pitch = %f roll = %f",
sen_events[i].vector.azimuth,
sen_events[i].vector.pitch,
sen_events[i].vector.roll);
// see http://en.wikipedia.org/wiki/Spherical_coordinate_system#Cartesian_coordinates
// about conversion from cartesian to spherical for orientation calculations
radius = (float) sqrt(x * x + y * y + z * z);
tilt = (int) asinf(z / radius) * RADIANS_2_DEG;
orient = (int) atan2f(-x, y) * RADIANS_2_DEG;
if (orient < 0) {
orient += 360;
}
if (orient >= DEGREES_270_THRESH) {
orient = 270;
} else if (orient >= DEGREES_180_THRESH) {
orient = 180;
} else if (orient >= DEGREES_90_THRESH) {
orient = 90;
} else {
orient = 0;
}
listener->handleOrientation(orient, tilt);
CAMHAL_LOGVB(" tilt = %d orientation = %d", tilt, orient);
} else if (sen_events[i].type == Sensor::TYPE_GYROSCOPE) {
CAMHAL_LOGVA("GYROSCOPE EVENT");
}
}
}
if (num_sensors < 0 && num_sensors != -EAGAIN) {
CAMHAL_LOGEB("reading events failed: %s", strerror(-num_sensors));
}
return 1;
}
