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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CameraStreamImpl.h"
#include "GeneratedJNINatives.h"
#include "nsCRTGlue.h"
#include "nsThreadUtils.h"
#include "nsXULAppAPI.h"
#include "mozilla/Monitor.h"
using namespace mozilla;
namespace mozilla {
namespace net {
static CameraStreamImpl* mCamera0 = nullptr;
static CameraStreamImpl* mCamera1 = nullptr;
class CameraStreamImpl::Callback
: public java::GeckoAppShell::CameraCallback::Natives<Callback>
{
public:
static void OnFrameData(int32_t aCamera, jni::ByteArray::Param aData)
{
MOZ_ASSERT(NS_IsMainThread());
CameraStreamImpl* impl = GetInstance(uint32_t(aCamera));
if (impl) {
impl->TransmitFrame(aData);
}
}
};
/**
* CameraStreamImpl
*/
void CameraStreamImpl::TransmitFrame(jni::ByteArray::Param aData) {
if (!mCallback) {
return;
}
JNIEnv* const env = jni::GetGeckoThreadEnv();
const size_t length = size_t(env->GetArrayLength(aData.Get()));
if (!length) {
return;
}
jbyte* const data = env->GetByteArrayElements(aData.Get(), nullptr);
mCallback->ReceiveFrame(reinterpret_cast<char*>(data), length);
env->ReleaseByteArrayElements(aData.Get(), data, JNI_ABORT);
}
CameraStreamImpl* CameraStreamImpl::GetInstance(uint32_t aCamera) {
CameraStreamImpl* res = nullptr;
switch(aCamera) {
case 0:
if (mCamera0)
res = mCamera0;
else
res = mCamera0 = new CameraStreamImpl(aCamera);
break;
case 1:
if (mCamera1)
res = mCamera1;
else
res = mCamera1 = new CameraStreamImpl(aCamera);
break;
}
return res;
}
CameraStreamImpl::CameraStreamImpl(uint32_t aCamera) :
mInit(false), mCamera(aCamera)
{
NS_WARNING("CameraStreamImpl::CameraStreamImpl()");
mWidth = 0;
mHeight = 0;
mFps = 0;
}
CameraStreamImpl::~CameraStreamImpl()
{
NS_WARNING("CameraStreamImpl::~CameraStreamImpl()");
}
bool CameraStreamImpl::Init(const nsCString& contentType, const uint32_t& camera, const uint32_t& width, const uint32_t& height, FrameCallback* aCallback)
{
mCallback = aCallback;
mWidth = width;
mHeight = height;
Callback::Init();
jni::IntArray::LocalRef retArray = java::GeckoAppShell::InitCamera(
contentType, int32_t(camera), int32_t(width), int32_t(height));
nsTArray<int32_t> ret = retArray->GetElements();
mWidth = uint32_t(ret[1]);
mHeight = uint32_t(ret[2]);
mFps = uint32_t(ret[3]);
return !!ret[0];
}
void CameraStreamImpl::Close() {
java::GeckoAppShell::CloseCamera();
mCallback = nullptr;
}
} // namespace net
} // namespace mozilla
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