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