void
CameraControlImpl::OnHardwareStateChange(CameraControlListener::HardwareState aNewState,
nsresult aReason)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it may be called from the camera's
// local binder thread, should the mediaserver process die.
MutexAutoLock lock(mListenerLock);
if (aNewState == mHardwareState) {
DOM_CAMERA_LOGI("OnHardwareStateChange: state did not change from %d\n", mHardwareState);
return;
}
const char* state[] = { "uninitialized", "closed", "open", "failed" };
MOZ_ASSERT(aNewState >= 0);
if (static_cast<unsigned int>(aNewState) < sizeof(state) / sizeof(state[0])) {
DOM_CAMERA_LOGI("New hardware state is '%s' (reason=0x%x)\n",
state[aNewState], aReason);
} else {
DOM_CAMERA_LOGE("OnHardwareStateChange: got invalid HardwareState value %d\n", aNewState);
}
mHardwareState = aNewState;
mHardwareStateChangeReason = aReason;
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnHardwareStateChange(mHardwareState, mHardwareStateChangeReason);
}
}
void
CameraControlImpl::OnPreviewStateChange(CameraControlListener::PreviewState aNewState)
{
// This callback runs on the Main Thread and the Camera Thread, and
// may run on the local binder thread, should the mediaserver
// process die.
MutexAutoLock lock(mListenerLock);
if (aNewState == mPreviewState) {
DOM_CAMERA_LOGI("OnPreviewStateChange: state did not change from %d\n", mPreviewState);
return;
}
const char* state[] = { "stopped", "paused", "started" };
MOZ_ASSERT(aNewState >= 0);
if (static_cast<unsigned int>(aNewState) < sizeof(state) / sizeof(state[0])) {
DOM_CAMERA_LOGI("New preview state is '%s'\n", state[aNewState]);
} else {
DOM_CAMERA_LOGE("OnPreviewStateChange: got unknown PreviewState value %d\n", aNewState);
}
mPreviewState = aNewState;
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnPreviewStateChange(mPreviewState);
}
}
void
CameraControlImpl::OnSystemError(CameraControlListener::SystemContext aContext,
nsresult aError)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
RwLockAutoEnterRead lock(mListenerLock);
#ifdef PR_LOGGING
const char* context[] = {
"Camera Service"
};
if (static_cast<size_t>(aContext) < sizeof(context) / sizeof(context[0])) {
DOM_CAMERA_LOGW("CameraControlImpl::OnSystemError : aContext='%s' (%d), aError=0x%x\n",
context[aContext], aContext, aError);
} else {
DOM_CAMERA_LOGE("CameraControlImpl::OnSystemError : aContext=%d, aError=0x%x\n",
aContext, aError);
}
#endif
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnSystemError(aContext, aError);
}
}
void
CameraControlImpl::OnAutoFocusMoving(bool aIsMoving)
{
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnAutoFocusMoving(aIsMoving);
}
}
void
CameraControlImpl::OnClosed()
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
RwLockAutoEnterRead lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnHardwareStateChange(CameraControlListener::kHardwareClosed);
}
}
void
CameraControlImpl::OnPoster(dom::BlobImpl* aBlobImpl)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnPoster(aBlobImpl);
}
}
void
CameraControlImpl::OnTakePictureComplete(const uint8_t* aData, uint32_t aLength, const nsAString& aMimeType)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it is called from the camera
// library's snapshot thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnTakePictureComplete(aData, aLength, aMimeType);
}
}
void
CameraControlImpl::OnFacesDetected(const nsTArray<Face>& aFaces)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it is called from the camera
// library's face detection thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnFacesDetected(aFaces);
}
}
void
CameraControlImpl::OnAutoFocusComplete(bool aAutoFocusSucceeded)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it is called from the camera
// library's auto focus thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnAutoFocusComplete(aAutoFocusSucceeded);
}
}
void
CameraControlImpl::OnConfigurationChange()
{
MOZ_ASSERT(NS_GetCurrentThread() == mCameraThread);
MutexAutoLock lock(mListenerLock);
DOM_CAMERA_LOGI("OnConfigurationChange : %zu listeners\n", mListeners.Length());
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnConfigurationChange(mCurrentConfiguration);
}
}
void
CameraControlImpl::AddListenerImpl(already_AddRefed<CameraControlListener> aListener)
{
MutexAutoLock lock(mListenerLock);
CameraControlListener* l = *mListeners.AppendElement() = aListener;
DOM_CAMERA_LOGI("Added camera control listener %p\n", l);
// Update the newly-added listener's state
l->OnConfigurationChange(mCurrentConfiguration);
l->OnHardwareStateChange(mHardwareState, mHardwareStateChangeReason);
l->OnPreviewStateChange(mPreviewState);
}
void
CameraControlImpl::OnShutter()
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it is called from the camera driver's
// preview thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnShutter();
}
}
void
CameraControlImpl::OnRateLimitPreview(bool aLimit)
{
// This function runs on neither the Main Thread nor the Camera Thread.
MutexAutoLock lock(mListenerLock);
DOM_CAMERA_LOGI("OnRateLimitPreview: %d\n", aLimit);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnRateLimitPreview(aLimit);
}
}
void
CameraControlImpl::OnRecorderStateChange(CameraControlListener::RecorderState aState,
int32_t aStatus, int32_t aTrackNumber)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread. On Gonk, it is called from the media encoder
// thread.
MutexAutoLock lock(mListenerLock);
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnRecorderStateChange(aState, aStatus, aTrackNumber);
}
}
void
CameraControlImpl::OnError(CameraControlListener::CameraErrorContext aContext,
CameraControlListener::CameraError aError)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
RwLockAutoEnterRead lock(mListenerLock);
#ifdef PR_LOGGING
const char* error[] = {
"api-failed",
"init-failed",
"invalid-configuration",
"service-failed",
"set-picture-size-failred",
"set-thumbnail-size-failed",
"unknown"
};
const char* context[] = {
"StartCamera",
"StopCamera",
"AutoFocus",
"TakePicture",
"StartRecording",
"StopRecording",
"SetConfiguration",
"StartPreview",
"StopPreview",
"Unspecified"
};
if (static_cast<unsigned int>(aError) < sizeof(error) / sizeof(error[0]) &&
static_cast<unsigned int>(aContext) < sizeof(context) / sizeof(context[0])) {
DOM_CAMERA_LOGW("CameraControlImpl::OnError : aContext='%s' (%u), aError='%s' (%u)\n",
context[aContext], aContext, error[aError], aError);
} else {
DOM_CAMERA_LOGE("CameraControlImpl::OnError : aContext=%u, aError=%d\n",
aContext, aError);
}
#endif
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnError(aContext, aError);
}
}
bool
CameraControlImpl::OnNewPreviewFrame(layers::Image* aImage, uint32_t aWidth, uint32_t aHeight)
{
// This function runs on neither the Main Thread nor the Camera Thread.
// On Gonk, it is called from the camera driver's preview thread.
MutexAutoLock lock(mListenerLock);
DOM_CAMERA_LOGI("OnNewPreviewFrame: we have %zu preview frame listener(s)\n",
mListeners.Length());
bool consumed = false;
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
consumed = l->OnNewPreviewFrame(aImage, aWidth, aHeight) || consumed;
}
return consumed;
}
void
CameraControlImpl::OnUserError(CameraControlListener::UserContext aContext,
nsresult aError)
{
// This callback can run on threads other than the Main Thread and
// the Camera Thread.
MutexAutoLock lock(mListenerLock);
const char* context[] = {
"StartCamera",
"StopCamera",
"AutoFocus",
"StartFaceDetection",
"StopFaceDetection",
"TakePicture",
"StartRecording",
"StopRecording",
"PauseRecording",
"ResumeRecording",
"SetConfiguration",
"StartPreview",
"StopPreview",
"SetPictureSize",
"SetThumbnailSize",
"ResumeContinuousFocus",
"Unspecified"
};
if (static_cast<size_t>(aContext) < sizeof(context) / sizeof(context[0])) {
DOM_CAMERA_LOGW("CameraControlImpl::OnUserError : aContext='%s' (%d), aError=0x%x\n",
context[aContext], aContext, aError);
} else {
DOM_CAMERA_LOGE("CameraControlImpl::OnUserError : aContext=%d, aError=0x%x\n",
aContext, aError);
}
for (uint32_t i = 0; i < mListeners.Length(); ++i) {
CameraControlListener* l = mListeners[i];
l->OnUserError(aContext, aError);
}
}