LCOV - code coverage report
Current view: directory - gfx/layers - ImageLayers.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 172 0 0.0 %
Date: 2012-06-02 Functions: 23 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2                 :  * ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Corporation code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Bas Schouten <bschouten@mozilla.com>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "mozilla/ipc/Shmem.h"
      39                 : #include "mozilla/ipc/CrossProcessMutex.h"
      40                 : #include "ImageLayers.h"
      41                 : #include "gfxImageSurface.h"
      42                 : #include "yuv_convert.h"
      43                 : 
      44                 : #ifdef XP_MACOSX
      45                 : #include "nsCoreAnimationSupport.h"
      46                 : #endif
      47                 : 
      48                 : using namespace mozilla::ipc;
      49                 : 
      50                 : namespace mozilla {
      51                 : namespace layers {
      52                 : 
      53                 : already_AddRefed<Image>
      54               0 : ImageFactory::CreateImage(const Image::Format *aFormats,
      55                 :                           PRUint32 aNumFormats,
      56                 :                           const gfxIntSize &,
      57                 :                           BufferRecycleBin *aRecycleBin)
      58                 : {
      59               0 :   if (!aNumFormats) {
      60               0 :     return nsnull;
      61                 :   }
      62               0 :   nsRefPtr<Image> img;
      63               0 :   if (FormatInList(aFormats, aNumFormats, Image::PLANAR_YCBCR)) {
      64               0 :     img = new PlanarYCbCrImage(aRecycleBin);
      65               0 :   } else if (FormatInList(aFormats, aNumFormats, Image::CAIRO_SURFACE)) {
      66               0 :     img = new CairoImage();
      67                 : #ifdef XP_MACOSX
      68                 :   } else if (FormatInList(aFormats, aNumFormats, Image::MAC_IO_SURFACE)) {
      69                 :     img = new MacIOSurfaceImage();
      70                 : #endif
      71                 :   }
      72               0 :   return img.forget();
      73                 : }
      74                 : 
      75               0 : BufferRecycleBin::BufferRecycleBin()
      76               0 :   : mLock("mozilla.layers.BufferRecycleBin.mLock")
      77                 : {
      78               0 : }
      79                 : 
      80                 : void
      81               0 : BufferRecycleBin::RecycleBuffer(PRUint8* aBuffer, PRUint32 aSize)
      82                 : {
      83               0 :   MutexAutoLock lock(mLock);
      84                 : 
      85               0 :   if (!mRecycledBuffers.IsEmpty() && aSize != mRecycledBufferSize) {
      86               0 :     mRecycledBuffers.Clear();
      87                 :   }
      88               0 :   mRecycledBufferSize = aSize;
      89               0 :   mRecycledBuffers.AppendElement(aBuffer);
      90               0 : }
      91                 : 
      92                 : PRUint8*
      93               0 : BufferRecycleBin::GetBuffer(PRUint32 aSize)
      94                 : {
      95               0 :   MutexAutoLock lock(mLock);
      96                 : 
      97               0 :   if (mRecycledBuffers.IsEmpty() || mRecycledBufferSize != aSize)
      98               0 :     return new PRUint8[aSize];
      99                 : 
     100               0 :   PRUint32 last = mRecycledBuffers.Length() - 1;
     101               0 :   PRUint8* result = mRecycledBuffers[last].forget();
     102               0 :   mRecycledBuffers.RemoveElementAt(last);
     103               0 :   return result;
     104                 : }
     105                 : 
     106               0 : ImageContainer::~ImageContainer()
     107                 : {
     108               0 : }
     109                 : 
     110                 : already_AddRefed<Image>
     111               0 : ImageContainer::CreateImage(const Image::Format *aFormats,
     112                 :                             PRUint32 aNumFormats)
     113                 : {
     114               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     115               0 :   return mImageFactory->CreateImage(aFormats, aNumFormats, mScaleHint, mRecycleBin);
     116                 : }
     117                 : 
     118                 : void
     119               0 : ImageContainer::SetCurrentImage(Image *aImage)
     120                 : {
     121               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     122                 : 
     123               0 :   if (mRemoteData) {
     124               0 :     NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
     125               0 :     mRemoteDataMutex->Lock();
     126                 :     // This is important since it ensures we won't change the active image
     127                 :     // when we currently have a locked image that depends on mRemoteData.
     128                 :   }
     129                 : 
     130               0 :   mActiveImage = aImage;
     131               0 :   CurrentImageChanged();
     132                 : 
     133               0 :   if (mRemoteData) {
     134               0 :     mRemoteDataMutex->Unlock();
     135                 :   }
     136               0 : }
     137                 : 
     138                 : bool
     139               0 : ImageContainer::HasCurrentImage()
     140                 : {
     141               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     142                 : 
     143               0 :   if (mRemoteData) {
     144               0 :     CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
     145                 :     
     146               0 :     EnsureActiveImage();
     147                 : 
     148               0 :     return !!mActiveImage.get();
     149                 :   }
     150                 : 
     151               0 :   return !!mActiveImage.get();
     152                 : }
     153                 : 
     154                 : already_AddRefed<Image>
     155               0 : ImageContainer::LockCurrentImage()
     156                 : {
     157               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     158                 :   
     159               0 :   if (mRemoteData) {
     160               0 :     NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
     161               0 :     mRemoteDataMutex->Lock();
     162                 :   }
     163                 : 
     164               0 :   EnsureActiveImage();
     165                 : 
     166               0 :   nsRefPtr<Image> retval = mActiveImage;
     167               0 :   return retval.forget();
     168                 : }
     169                 : 
     170                 : already_AddRefed<gfxASurface>
     171               0 : ImageContainer::LockCurrentAsSurface(gfxIntSize *aSize, Image** aCurrentImage)
     172                 : {
     173               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     174                 : 
     175               0 :   if (mRemoteData) {
     176               0 :     NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
     177               0 :     mRemoteDataMutex->Lock();
     178                 : 
     179               0 :     EnsureActiveImage();
     180                 : 
     181               0 :     if (aCurrentImage) {
     182               0 :       NS_IF_ADDREF(mActiveImage);
     183               0 :       *aCurrentImage = mActiveImage.get();
     184                 :     }
     185                 : 
     186               0 :     if (!mActiveImage) {
     187               0 :       return nsnull;
     188                 :     } 
     189                 : 
     190               0 :     if (mActiveImage->GetFormat() == Image::REMOTE_IMAGE_BITMAP) {
     191                 :       nsRefPtr<gfxImageSurface> newSurf =
     192                 :         new gfxImageSurface(mRemoteData->mBitmap.mData, mRemoteData->mSize, mRemoteData->mBitmap.mStride,
     193                 :                             mRemoteData->mFormat == RemoteImageData::BGRX32 ?
     194                 :                                                    gfxASurface::ImageFormatARGB32 :
     195               0 :                                                    gfxASurface::ImageFormatRGB24);
     196                 : 
     197               0 :       *aSize = newSurf->GetSize();
     198                 :     
     199               0 :       return newSurf.forget();
     200                 :     }
     201                 :   }
     202                 : 
     203               0 :   if (aCurrentImage) {
     204               0 :     NS_IF_ADDREF(mActiveImage);
     205               0 :     *aCurrentImage = mActiveImage.get();
     206                 :   }
     207                 : 
     208               0 :   if (!mActiveImage) {
     209               0 :     return nsnull;
     210                 :   }
     211                 : 
     212               0 :   *aSize = mActiveImage->GetSize();
     213               0 :   return mActiveImage->GetAsSurface();
     214                 : }
     215                 : 
     216                 : void
     217               0 : ImageContainer::UnlockCurrentImage()
     218                 : {
     219               0 :   if (mRemoteData) {
     220               0 :     NS_ASSERTION(mRemoteDataMutex, "Should have remote data mutex when having remote data!");
     221               0 :     mRemoteDataMutex->Unlock();
     222                 :   }
     223               0 : }
     224                 : 
     225                 : already_AddRefed<gfxASurface>
     226               0 : ImageContainer::GetCurrentAsSurface(gfxIntSize *aSize)
     227                 : {
     228               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     229                 : 
     230               0 :   if (mRemoteData) {
     231               0 :     CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
     232               0 :     EnsureActiveImage();
     233                 : 
     234               0 :     *aSize = mRemoteData->mSize;
     235               0 :     return mActiveImage ? mActiveImage->GetAsSurface() : nsnull;
     236                 :   }
     237                 : 
     238               0 :   *aSize = mActiveImage->GetSize();
     239               0 :   return mActiveImage ? mActiveImage->GetAsSurface() : nsnull;
     240                 : }
     241                 : 
     242                 : gfxIntSize
     243               0 : ImageContainer::GetCurrentSize()
     244                 : {
     245               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     246                 : 
     247               0 :   if (mRemoteData) {
     248               0 :     CrossProcessMutexAutoLock autoLock(*mRemoteDataMutex);
     249                 : 
     250                 :     // We don't need to ensure we have an active image here, as we need to
     251                 :     // be in the mutex anyway, and this is easiest to return from there.
     252               0 :     return mRemoteData->mSize;
     253                 :   }
     254                 : 
     255               0 :   if (!mActiveImage) {
     256               0 :     return gfxIntSize(0,0);
     257                 :   }
     258                 : 
     259               0 :   return mActiveImage->GetSize();
     260                 : }
     261                 : 
     262                 : void
     263               0 : ImageContainer::SetRemoteImageData(RemoteImageData *aData, CrossProcessMutex *aMutex)
     264                 : {
     265               0 :   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
     266               0 :   NS_ASSERTION(!mActiveImage, "No active image expected when SetRemoteImageData is called.");
     267               0 :   NS_ASSERTION(!mRemoteData, "No remote data expected when SetRemoteImageData is called.");
     268                 : 
     269               0 :   mRemoteData = aData;
     270                 : 
     271               0 :   if (aData) {
     272               0 :     memset(aData, 0, sizeof(RemoteImageData));
     273                 :   } else {
     274               0 :     mActiveImage = nsnull;
     275                 :   }
     276                 : 
     277               0 :   mRemoteDataMutex = aMutex;
     278               0 : }
     279                 : 
     280                 : void
     281               0 : ImageContainer::EnsureActiveImage()
     282                 : {
     283               0 :   if (mRemoteData) {
     284               0 :     if (mRemoteData->mWasUpdated) {
     285               0 :       mActiveImage = nsnull;
     286                 :     }
     287                 : 
     288               0 :     if (mRemoteData->mType == RemoteImageData::RAW_BITMAP &&
     289               0 :         mRemoteData->mBitmap.mData && !mActiveImage) {
     290               0 :       nsRefPtr<RemoteBitmapImage> newImg = new RemoteBitmapImage();
     291                 :       
     292               0 :       newImg->mFormat = mRemoteData->mFormat;
     293               0 :       newImg->mData = mRemoteData->mBitmap.mData;
     294               0 :       newImg->mSize = mRemoteData->mSize;
     295               0 :       newImg->mStride = mRemoteData->mBitmap.mStride;
     296               0 :       mRemoteData->mWasUpdated = false;
     297                 :               
     298               0 :       mActiveImage = newImg;
     299                 :     }
     300                 :   }
     301               0 : }
     302                 : 
     303               0 : PlanarYCbCrImage::PlanarYCbCrImage(BufferRecycleBin *aRecycleBin)
     304                 :   : Image(nsnull, PLANAR_YCBCR)
     305                 :   , mBufferSize(0)
     306               0 :   , mRecycleBin(aRecycleBin)
     307                 : {
     308               0 : }
     309                 : 
     310               0 : PlanarYCbCrImage::~PlanarYCbCrImage()
     311                 : {
     312               0 :   if (mBuffer) {
     313               0 :     mRecycleBin->RecycleBuffer(mBuffer.forget(), mBufferSize);
     314                 :   }
     315               0 : }
     316                 : 
     317                 : PRUint8* 
     318               0 : PlanarYCbCrImage::AllocateBuffer(PRUint32 aSize)
     319                 : {
     320               0 :   return mRecycleBin->GetBuffer(aSize); 
     321                 : }
     322                 : 
     323                 : void
     324               0 : PlanarYCbCrImage::CopyData(const Data& aData)
     325                 : {
     326               0 :   mData = aData;
     327                 : 
     328               0 :   mData.mYStride = mData.mYSize.width;
     329               0 :   mData.mCbCrStride = mData.mCbCrSize.width;
     330                 : 
     331                 :   // update buffer size
     332                 :   mBufferSize = mData.mCbCrStride * mData.mCbCrSize.height * 2 +
     333               0 :                 mData.mYStride * mData.mYSize.height;
     334                 : 
     335                 :   // get new buffer
     336               0 :   mBuffer = AllocateBuffer(mBufferSize); 
     337               0 :   if (!mBuffer)
     338               0 :     return;
     339                 : 
     340               0 :   mData.mYChannel = mBuffer;
     341               0 :   mData.mCbChannel = mData.mYChannel + mData.mYStride * mData.mYSize.height;
     342               0 :   mData.mCrChannel = mData.mCbChannel + mData.mCbCrStride * mData.mCbCrSize.height;
     343                 : 
     344               0 :   for (int i = 0; i < mData.mYSize.height; i++) {
     345               0 :     memcpy(mData.mYChannel + i * mData.mYStride,
     346                 :            aData.mYChannel + i * aData.mYStride,
     347               0 :            mData.mYStride);
     348                 :   }
     349               0 :   for (int i = 0; i < mData.mCbCrSize.height; i++) {
     350               0 :     memcpy(mData.mCbChannel + i * mData.mCbCrStride,
     351                 :            aData.mCbChannel + i * aData.mCbCrStride,
     352               0 :            mData.mCbCrStride);
     353               0 :     memcpy(mData.mCrChannel + i * mData.mCbCrStride,
     354                 :            aData.mCrChannel + i * aData.mCbCrStride,
     355               0 :            mData.mCbCrStride);
     356                 :   }
     357                 : 
     358               0 :   mSize = aData.mPicSize;
     359                 : }
     360                 : 
     361                 : void
     362               0 : PlanarYCbCrImage::SetData(const Data &aData)
     363                 : {
     364               0 :   CopyData(aData);
     365               0 : }
     366                 : 
     367                 : already_AddRefed<gfxASurface>
     368               0 : PlanarYCbCrImage::GetAsSurface()
     369                 : {
     370               0 :   if (mSurface) {
     371               0 :     nsRefPtr<gfxASurface> result = mSurface.get();
     372               0 :     return result.forget();
     373                 :   }
     374                 : 
     375                 :   nsRefPtr<gfxImageSurface> imageSurface =
     376               0 :     new gfxImageSurface(mSize, gfxASurface::ImageFormatRGB24);
     377                 :   
     378                 :   gfx::YUVType type = 
     379                 :     gfx::TypeFromSize(mData.mYSize.width,
     380                 :                       mData.mYSize.height,
     381                 :                       mData.mCbCrSize.width,
     382               0 :                       mData.mCbCrSize.height);
     383                 : 
     384                 :   // Convert from YCbCr to RGB now
     385                 :   gfx::ConvertYCbCrToRGB32(mData.mYChannel,
     386                 :                            mData.mCbChannel,
     387                 :                            mData.mCrChannel,
     388                 :                            imageSurface->Data(),
     389                 :                            mData.mPicX,
     390                 :                            mData.mPicY,
     391                 :                            mData.mPicSize.width,
     392                 :                            mData.mPicSize.height,
     393                 :                            mData.mYStride,
     394                 :                            mData.mCbCrStride,
     395                 :                            imageSurface->Stride(),
     396               0 :                            type);
     397                 : 
     398               0 :   mSurface = imageSurface;
     399                 : 
     400               0 :   return imageSurface.forget().get();
     401                 : }
     402                 : 
     403                 : #ifdef XP_MACOSX
     404                 : void
     405                 : MacIOSurfaceImage::SetData(const Data& aData)
     406                 : {
     407                 :   mIOSurface = nsIOSurface::LookupSurface(aData.mIOSurface->GetIOSurfaceID());
     408                 :   mSize = gfxIntSize(mIOSurface->GetWidth(), mIOSurface->GetHeight());
     409                 : }
     410                 : 
     411                 : already_AddRefed<gfxASurface>
     412                 : MacIOSurfaceImage::GetAsSurface()
     413                 : {
     414                 :   return mIOSurface->GetAsSurface();
     415                 : }
     416                 : 
     417                 : void
     418                 : MacIOSurfaceImage::Update(ImageContainer* aContainer)
     419                 : {
     420                 :   if (mUpdateCallback) {
     421                 :     mUpdateCallback(aContainer, mPluginInstanceOwner);
     422                 :   }
     423                 : }
     424                 : #endif
     425                 : already_AddRefed<gfxASurface>
     426               0 : RemoteBitmapImage::GetAsSurface()
     427                 : {
     428                 :   nsRefPtr<gfxImageSurface> newSurf =
     429                 :     new gfxImageSurface(mSize,
     430               0 :     mFormat == RemoteImageData::BGRX32 ? gfxASurface::ImageFormatRGB24 : gfxASurface::ImageFormatARGB32);
     431                 : 
     432               0 :   for (int y = 0; y < mSize.height; y++) {
     433               0 :     memcpy(newSurf->Data() + newSurf->Stride() * y,
     434                 :            mData + mStride * y,
     435               0 :            mSize.width * 4);
     436                 :   }
     437                 : 
     438               0 :   return newSurf.forget();
     439                 : }
     440                 : 
     441                 : }
     442                 : }

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