зеркало из https://github.com/mozilla/gecko-dev.git
415 строки
10 KiB
C++
415 строки
10 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* 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 "mozilla/ipc/Shmem.h"
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#include "mozilla/ipc/CrossProcessMutex.h"
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#include "ImageLayers.h"
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#include "gfxImageSurface.h"
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#include "yuv_convert.h"
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#ifdef XP_MACOSX
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#include "nsCoreAnimationSupport.h"
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#endif
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using namespace mozilla::ipc;
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namespace mozilla {
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namespace layers {
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already_AddRefed<Image>
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ImageFactory::CreateImage(const Image::Format *aFormats,
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PRUint32 aNumFormats,
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const gfxIntSize &,
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BufferRecycleBin *aRecycleBin)
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{
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if (!aNumFormats) {
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return nsnull;
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}
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nsRefPtr<Image> img;
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if (FormatInList(aFormats, aNumFormats, Image::PLANAR_YCBCR)) {
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img = new PlanarYCbCrImage(aRecycleBin);
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} else if (FormatInList(aFormats, aNumFormats, Image::CAIRO_SURFACE)) {
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img = new CairoImage();
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#ifdef XP_MACOSX
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} else if (FormatInList(aFormats, aNumFormats, Image::MAC_IO_SURFACE)) {
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img = new MacIOSurfaceImage();
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#endif
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}
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return img.forget();
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}
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BufferRecycleBin::BufferRecycleBin()
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: mLock("mozilla.layers.BufferRecycleBin.mLock")
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{
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}
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void
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BufferRecycleBin::RecycleBuffer(PRUint8* aBuffer, PRUint32 aSize)
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{
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MutexAutoLock lock(mLock);
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if (!mRecycledBuffers.IsEmpty() && aSize != mRecycledBufferSize) {
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mRecycledBuffers.Clear();
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}
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mRecycledBufferSize = aSize;
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mRecycledBuffers.AppendElement(aBuffer);
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}
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PRUint8*
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BufferRecycleBin::GetBuffer(PRUint32 aSize)
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{
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MutexAutoLock lock(mLock);
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if (mRecycledBuffers.IsEmpty() || mRecycledBufferSize != aSize)
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return new PRUint8[aSize];
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PRUint32 last = mRecycledBuffers.Length() - 1;
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PRUint8* result = mRecycledBuffers[last].forget();
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mRecycledBuffers.RemoveElementAt(last);
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return result;
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}
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ImageContainer::~ImageContainer()
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{
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}
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already_AddRefed<Image>
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ImageContainer::CreateImage(const Image::Format *aFormats,
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PRUint32 aNumFormats)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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return mImageFactory->CreateImage(aFormats, aNumFormats, mScaleHint, mRecycleBin);
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}
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void
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ImageContainer::SetCurrentImage(Image *aImage)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
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mRemoteDataMutex->Lock();
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// This is important since it ensures we won't change the active image
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// when we currently have a locked image that depends on mRemoteData.
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}
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mActiveImage = aImage;
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CurrentImageChanged();
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if (mRemoteData) {
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mRemoteDataMutex->Unlock();
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}
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}
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bool
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ImageContainer::HasCurrentImage()
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
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EnsureActiveImage();
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return !!mActiveImage.get();
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}
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return !!mActiveImage.get();
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}
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already_AddRefed<Image>
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ImageContainer::LockCurrentImage()
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
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mRemoteDataMutex->Lock();
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}
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EnsureActiveImage();
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nsRefPtr<Image> retval = mActiveImage;
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return retval.forget();
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}
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already_AddRefed<gfxASurface>
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ImageContainer::LockCurrentAsSurface(gfxIntSize *aSize, Image** aCurrentImage)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
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mRemoteDataMutex->Lock();
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EnsureActiveImage();
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if (aCurrentImage) {
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NS_IF_ADDREF(mActiveImage);
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*aCurrentImage = mActiveImage.get();
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}
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if (!mActiveImage) {
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return nsnull;
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}
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if (mActiveImage->GetFormat() == Image::REMOTE_IMAGE_BITMAP) {
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nsRefPtr<gfxImageSurface> newSurf =
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new gfxImageSurface(mRemoteData->mBitmap.mData, mRemoteData->mSize, mRemoteData->mBitmap.mStride,
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mRemoteData->mFormat == RemoteImageData::BGRX32 ?
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gfxASurface::ImageFormatARGB32 :
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gfxASurface::ImageFormatRGB24);
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*aSize = newSurf->GetSize();
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return newSurf.forget();
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}
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}
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if (aCurrentImage) {
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NS_IF_ADDREF(mActiveImage);
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*aCurrentImage = mActiveImage.get();
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}
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if (!mActiveImage) {
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return nsnull;
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}
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*aSize = mActiveImage->GetSize();
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return mActiveImage->GetAsSurface();
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}
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void
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ImageContainer::UnlockCurrentImage()
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{
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if (mRemoteData) {
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NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
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mRemoteDataMutex->Unlock();
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}
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}
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already_AddRefed<gfxASurface>
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ImageContainer::GetCurrentAsSurface(gfxIntSize *aSize)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
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EnsureActiveImage();
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if (!mActiveImage)
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return nsnull;
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*aSize = mRemoteData->mSize;
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} else {
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if (!mActiveImage)
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return nsnull;
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*aSize = mActiveImage->GetSize();
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}
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return mActiveImage->GetAsSurface();
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}
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gfxIntSize
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ImageContainer::GetCurrentSize()
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mRemoteData) {
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CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
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// We don't need to ensure we have an active image here, as we need to
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// be in the mutex anyway, and this is easiest to return from there.
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return mRemoteData->mSize;
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}
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if (!mActiveImage) {
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return gfxIntSize(0,0);
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}
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return mActiveImage->GetSize();
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}
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void
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ImageContainer::SetRemoteImageData(RemoteImageData *aData, CrossProcessMutex *aMutex)
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{
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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NS_ASSERTION(!mActiveImage || !aData, "No active image expected when SetRemoteImageData is called with non-NULL aData.");
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NS_ASSERTION(!mRemoteData || !aData, "No remote data expected when SetRemoteImageData is called with non-NULL aData.");
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mRemoteData = aData;
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if (aData) {
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memset(aData, 0, sizeof(RemoteImageData));
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} else {
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mActiveImage = nsnull;
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}
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mRemoteDataMutex = aMutex;
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}
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void
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ImageContainer::EnsureActiveImage()
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{
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if (mRemoteData) {
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if (mRemoteData->mWasUpdated) {
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mActiveImage = nsnull;
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}
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if (mRemoteData->mType == RemoteImageData::RAW_BITMAP &&
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mRemoteData->mBitmap.mData && !mActiveImage) {
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nsRefPtr<RemoteBitmapImage> newImg = new RemoteBitmapImage();
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newImg->mFormat = mRemoteData->mFormat;
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newImg->mData = mRemoteData->mBitmap.mData;
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newImg->mSize = mRemoteData->mSize;
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newImg->mStride = mRemoteData->mBitmap.mStride;
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mRemoteData->mWasUpdated = false;
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mActiveImage = newImg;
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}
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}
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}
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PlanarYCbCrImage::PlanarYCbCrImage(BufferRecycleBin *aRecycleBin)
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: Image(nsnull, PLANAR_YCBCR)
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, mBufferSize(0)
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, mRecycleBin(aRecycleBin)
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{
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}
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PlanarYCbCrImage::~PlanarYCbCrImage()
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{
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if (mBuffer) {
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mRecycleBin->RecycleBuffer(mBuffer.forget(), mBufferSize);
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}
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}
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PRUint8*
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PlanarYCbCrImage::AllocateBuffer(PRUint32 aSize)
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{
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return mRecycleBin->GetBuffer(aSize);
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}
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void
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PlanarYCbCrImage::CopyData(const Data& aData)
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{
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mData = aData;
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mData.mYStride = mData.mYSize.width;
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mData.mCbCrStride = mData.mCbCrSize.width;
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// update buffer size
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mBufferSize = mData.mCbCrStride * mData.mCbCrSize.height * 2 +
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mData.mYStride * mData.mYSize.height;
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// get new buffer
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mBuffer = AllocateBuffer(mBufferSize);
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if (!mBuffer)
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return;
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mData.mYChannel = mBuffer;
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mData.mCbChannel = mData.mYChannel + mData.mYStride * mData.mYSize.height;
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mData.mCrChannel = mData.mCbChannel + mData.mCbCrStride * mData.mCbCrSize.height;
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for (int i = 0; i < mData.mYSize.height; i++) {
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memcpy(mData.mYChannel + i * mData.mYStride,
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aData.mYChannel + i * aData.mYStride,
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mData.mYStride);
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}
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for (int i = 0; i < mData.mCbCrSize.height; i++) {
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memcpy(mData.mCbChannel + i * mData.mCbCrStride,
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aData.mCbChannel + i * aData.mCbCrStride,
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mData.mCbCrStride);
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memcpy(mData.mCrChannel + i * mData.mCbCrStride,
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aData.mCrChannel + i * aData.mCbCrStride,
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mData.mCbCrStride);
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}
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mSize = aData.mPicSize;
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}
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void
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PlanarYCbCrImage::SetData(const Data &aData)
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{
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CopyData(aData);
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}
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already_AddRefed<gfxASurface>
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PlanarYCbCrImage::GetAsSurface()
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{
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if (mSurface) {
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nsRefPtr<gfxASurface> result = mSurface.get();
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return result.forget();
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}
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nsRefPtr<gfxImageSurface> imageSurface =
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new gfxImageSurface(mSize, gfxASurface::ImageFormatRGB24);
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gfx::YUVType type =
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gfx::TypeFromSize(mData.mYSize.width,
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mData.mYSize.height,
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mData.mCbCrSize.width,
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mData.mCbCrSize.height);
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// Convert from YCbCr to RGB now
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gfx::ConvertYCbCrToRGB32(mData.mYChannel,
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mData.mCbChannel,
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mData.mCrChannel,
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imageSurface->Data(),
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mData.mPicX,
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mData.mPicY,
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mData.mPicSize.width,
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mData.mPicSize.height,
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mData.mYStride,
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mData.mCbCrStride,
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imageSurface->Stride(),
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type);
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mSurface = imageSurface;
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return imageSurface.forget().get();
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}
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#ifdef XP_MACOSX
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void
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MacIOSurfaceImage::SetData(const Data& aData)
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{
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mIOSurface = nsIOSurface::LookupSurface(aData.mIOSurface->GetIOSurfaceID());
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mSize = gfxIntSize(mIOSurface->GetWidth(), mIOSurface->GetHeight());
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}
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already_AddRefed<gfxASurface>
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MacIOSurfaceImage::GetAsSurface()
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{
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return mIOSurface->GetAsSurface();
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}
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void
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MacIOSurfaceImage::Update(ImageContainer* aContainer)
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{
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if (mUpdateCallback) {
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mUpdateCallback(aContainer, mPluginInstanceOwner);
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}
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}
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#endif
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already_AddRefed<gfxASurface>
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RemoteBitmapImage::GetAsSurface()
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{
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nsRefPtr<gfxImageSurface> newSurf =
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new gfxImageSurface(mSize,
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mFormat == RemoteImageData::BGRX32 ? gfxASurface::ImageFormatRGB24 : gfxASurface::ImageFormatARGB32);
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for (int y = 0; y < mSize.height; y++) {
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memcpy(newSurf->Data() + newSurf->Stride() * y,
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mData + mStride * y,
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mSize.width * 4);
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}
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return newSurf.forget();
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}
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}
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}
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