Backed out changeset 248c73a2c3b1 (bug 1215089)

gfx/2d/Tools.h

@@ -92,7 +92,6 @@ BytesPerPixel(SurfaceFormat aFormat)
   case SurfaceFormat::A8:
     return 1;
   case SurfaceFormat::R5G6B5_UINT16:
-  case SurfaceFormat::A16:
     return 2;
   case SurfaceFormat::R8G8B8:
   case SurfaceFormat::B8G8R8:
@@ -107,19 +106,6 @@ BytesPerPixel(SurfaceFormat aFormat)
   }
 }
 
-static inline SurfaceFormat
-SurfaceFormatForAlphaDepth(uint32_t aDepth)
-{
-  if (aDepth == 8) {
-    return SurfaceFormat::A8;
-  } else if (aDepth == 10 ||
-             aDepth == 12) {
-    return SurfaceFormat::A16;
-  }
-  MOZ_ASSERT_UNREACHABLE("Unsupported alpha depth");
-  return SurfaceFormat::UNKNOWN;
-}
-
 static inline bool
 IsOpaqueFormat(SurfaceFormat aFormat) {
   switch (aFormat) {

gfx/2d/Types.h

@@ -56,7 +56,6 @@ enum class SurfaceFormat : int8_t {
 
   // This one is a single-byte, so endianness isn't an issue.
   A8,
-  A16,
 
   R8G8,
 

gfx/layers/BufferTexture.cpp

@@ -159,7 +159,6 @@ BufferTextureData*
 BufferTextureData::CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
                                                 int32_t aBufferSize,
                                                 YUVColorSpace aYUVColorSpace,
-                                                uint32_t aDepth,
                                                 TextureFlags aTextureFlags)
 {
   if (aBufferSize == 0 || !gfx::Factory::CheckBufferSize(aBufferSize)) {
@@ -172,10 +171,9 @@ BufferTextureData::CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
 
   // Initialize the metadata with something, even if it will have to be rewritten
   // afterwards since we don't know the dimensions of the texture at this point.
-  BufferDescriptor desc = YCbCrDescriptor(gfx::IntSize(), 0, gfx::IntSize(), 0,
+  BufferDescriptor desc = YCbCrDescriptor(gfx::IntSize(), gfx::IntSize(),
                                           0, 0, 0, StereoMode::MONO,
                                           aYUVColorSpace,
-                                          aDepth,
                                           hasIntermediateBuffer);
 
   return CreateInternal(aAllocator ? aAllocator->GetTextureForwarder() : nullptr,
@@ -185,16 +183,12 @@ BufferTextureData::CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
 BufferTextureData*
 BufferTextureData::CreateForYCbCr(KnowsCompositor* aAllocator,
                                   gfx::IntSize aYSize,
-                                  uint32_t aYStride,
                                   gfx::IntSize aCbCrSize,
-                                  uint32_t aCbCrStride,
                                   StereoMode aStereoMode,
                                   YUVColorSpace aYUVColorSpace,
-                                  uint32_t aDepth,
                                   TextureFlags aTextureFlags)
 {
-  uint32_t bufSize = ImageDataSerializer::ComputeYCbCrBufferSize(
+  uint32_t bufSize = ImageDataSerializer::ComputeYCbCrBufferSize(aYSize, aCbCrSize);
-    aYSize, aYStride, aCbCrSize, aCbCrStride);
   if (bufSize == 0) {
     return nullptr;
   }
@@ -202,30 +196,20 @@ BufferTextureData::CreateForYCbCr(KnowsCompositor* aAllocator,
   uint32_t yOffset;
   uint32_t cbOffset;
   uint32_t crOffset;
-  ImageDataSerializer::ComputeYCbCrOffsets(aYStride, aYSize.height,
+  ImageDataSerializer::ComputeYCbCrOffsets(aYSize.width, aYSize.height,
-                                           aCbCrStride, aCbCrSize.height,
+                                          aCbCrSize.width, aCbCrSize.height,
                                           yOffset, cbOffset, crOffset);
 
-  bool hasIntermediateBuffer =
+  bool hasIntermediateBuffer = aAllocator ? ComputeHasIntermediateBuffer(gfx::SurfaceFormat::YUV,
-    aAllocator
-      ? ComputeHasIntermediateBuffer(gfx::SurfaceFormat::YUV,
                                                                          aAllocator->GetCompositorBackendType())
                                           : true;
 
-  YCbCrDescriptor descriptor = YCbCrDescriptor(aYSize, aYStride,
+  YCbCrDescriptor descriptor = YCbCrDescriptor(aYSize, aCbCrSize, yOffset, cbOffset,
-                                               aCbCrSize, aCbCrStride,
+                                               crOffset, aStereoMode, aYUVColorSpace,
-                                               yOffset, cbOffset, crOffset,
-                                               aStereoMode,
-                                               aYUVColorSpace,
-                                               aDepth,
                                                hasIntermediateBuffer);
 
-  return CreateInternal(aAllocator ? aAllocator->GetTextureForwarder()
+ return CreateInternal(aAllocator ? aAllocator->GetTextureForwarder() : nullptr, descriptor,
-                                   : nullptr,
+                       gfx::BackendType::NONE, bufSize, aTextureFlags);
-                        descriptor,
-                        gfx::BackendType::NONE,
-                        bufSize,
-                        aTextureFlags);
 }
 
 void
@@ -270,12 +254,6 @@ BufferTextureData::GetYUVColorSpace() const
   return ImageDataSerializer::YUVColorSpaceFromBufferDescriptor(mDescriptor);
 }
 
-Maybe<uint32_t>
-BufferTextureData::GetDepth() const
-{
-  return ImageDataSerializer::DepthFromBufferDescriptor(mDescriptor);
-}
-
 Maybe<StereoMode>
 BufferTextureData::GetStereoMode() const
 {
@@ -373,17 +351,17 @@ BufferTextureData::BorrowMappedYCbCrData(MappedYCbCrTextureData& aMap)
 
   aMap.y.data = data + desc.yOffset();
   aMap.y.size = ySize;
-  aMap.y.stride = desc.yStride();
+  aMap.y.stride = ySize.width;
   aMap.y.skip = 0;
 
   aMap.cb.data = data + desc.cbOffset();
   aMap.cb.size = cbCrSize;
-  aMap.cb.stride = desc.cbCrStride();
+  aMap.cb.stride = cbCrSize.width;
   aMap.cb.skip = 0;
 
   aMap.cr.data = data + desc.crOffset();
   aMap.cr.size = cbCrSize;
-  aMap.cr.stride = desc.cbCrStride();
+  aMap.cr.stride = cbCrSize.width;
   aMap.cr.skip = 0;
 
   return true;

gfx/layers/BufferTexture.h

@@ -30,12 +30,9 @@ public:
 
   static BufferTextureData* CreateForYCbCr(KnowsCompositor* aAllocator,
                                            gfx::IntSize aYSize,
-                                           uint32_t aYStride,
                                            gfx::IntSize aCbCrSize,
-                                           uint32_t aCbCrStride,
                                            StereoMode aStereoMode,
                                            YUVColorSpace aYUVColorSpace,
-                                           uint32_t aDepth,
                                            TextureFlags aTextureFlags);
 
   // It is generally better to use CreateForYCbCr instead.
@@ -44,7 +41,6 @@ public:
   static BufferTextureData* CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
                                                          int32_t aSize,
                                                          YUVColorSpace aYUVColorSpace,
-                                                         uint32_t aDepth,
                                                          TextureFlags aTextureFlags);
 
   virtual bool Lock(OpenMode aMode) override { return true; }
@@ -71,8 +67,6 @@ public:
 
   Maybe<YUVColorSpace> GetYUVColorSpace() const;
 
-  Maybe<uint32_t> GetDepth() const;
-
   Maybe<StereoMode> GetStereoMode() const;
 
 protected:

gfx/layers/Effects.h

@@ -161,16 +161,14 @@ struct EffectRGB : public TexturedEffect
 
 struct EffectYCbCr : public TexturedEffect
 {
-  EffectYCbCr(TextureSource *aSource, YUVColorSpace aYUVColorSpace, uint32_t aDepth, gfx::SamplingFilter aSamplingFilter)
+  EffectYCbCr(TextureSource *aSource, YUVColorSpace aYUVColorSpace, gfx::SamplingFilter aSamplingFilter)
     : TexturedEffect(EffectTypes::YCBCR, aSource, false, aSamplingFilter)
     , mYUVColorSpace(aYUVColorSpace)
-    , mDepth(aDepth)
   {}
 
   virtual const char* Name() { return "EffectYCbCr"; }
 
   YUVColorSpace mYUVColorSpace;
-  uint32_t mDepth;
 };
 
 struct EffectNV12 : public TexturedEffect
@@ -272,8 +270,7 @@ CreateTexturedEffect(TextureHost* aHost,
   RefPtr<TexturedEffect> result;
   if (aHost->GetReadFormat() == gfx::SurfaceFormat::YUV) {
     MOZ_ASSERT(aHost->GetYUVColorSpace() != YUVColorSpace::UNKNOWN);
-    result = new EffectYCbCr(
+    result = new EffectYCbCr(aSource, aHost->GetYUVColorSpace(), aSamplingFilter);
-      aSource, aHost->GetYUVColorSpace(), aHost->GetDepth(), aSamplingFilter);
   } else {
     result = CreateTexturedEffect(aHost->GetReadFormat(),
                                   aSource,

gfx/layers/ImageDataSerializer.cpp

@@ -71,12 +71,18 @@ ComputeYCbCrBufferSize(const gfx::IntSize& aYSize, int32_t aYStride,
       !gfx::Factory::AllowedSurfaceSize(IntSize(aCbCrStride, aCbCrSize.height))) {
     return 0;
   }
-
   // Overflow checks are performed in AllowedSurfaceSize
   return GetAlignedStride<4>(aYSize.height, aYStride) +
          2 * GetAlignedStride<4>(aCbCrSize.height, aCbCrStride);
 }
 
+// Minimum required shmem size in bytes
+uint32_t
+ComputeYCbCrBufferSize(const gfx::IntSize& aYSize, const gfx::IntSize& aCbCrSize)
+{
+  return ComputeYCbCrBufferSize(aYSize, aYSize.width, aCbCrSize, aCbCrSize.width);
+}
+
 uint32_t
 ComputeYCbCrBufferSize(uint32_t aBufferSize)
 {
@@ -130,6 +136,7 @@ Maybe<gfx::IntSize> CbCrSizeFromBufferDescriptor(const BufferDescriptor& aDescri
 }
 
 Maybe<YUVColorSpace> YUVColorSpaceFromBufferDescriptor(const BufferDescriptor& aDescriptor)
+{
 {
   switch (aDescriptor.type()) {
     case BufferDescriptor::TRGBDescriptor:
@@ -137,20 +144,9 @@ Maybe<YUVColorSpace> YUVColorSpaceFromBufferDescriptor(const BufferDescriptor& a
     case BufferDescriptor::TYCbCrDescriptor:
       return Some(aDescriptor.get_YCbCrDescriptor().yUVColorSpace());
     default:
-      MOZ_CRASH("GFX:  YUVColorSpaceFromBufferDescriptor");
+      MOZ_CRASH("GFX:  CbCrSizeFromBufferDescriptor");
   }
 }
-
-Maybe<uint32_t> DepthFromBufferDescriptor(const BufferDescriptor& aDescriptor)
-{
-  switch (aDescriptor.type()) {
-    case BufferDescriptor::TRGBDescriptor:
-      return Nothing();
-    case BufferDescriptor::TYCbCrDescriptor:
-      return Some(aDescriptor.get_YCbCrDescriptor().depth());
-    default:
-      MOZ_CRASH("GFX:  DepthFromBufferDescriptor");
-  }
 }
 
 Maybe<StereoMode> StereoModeFromBufferDescriptor(const BufferDescriptor& aDescriptor)
@@ -161,7 +157,7 @@ Maybe<StereoMode> StereoModeFromBufferDescriptor(const BufferDescriptor& aDescri
     case BufferDescriptor::TYCbCrDescriptor:
       return Some(aDescriptor.get_YCbCrDescriptor().stereoMode());
     default:
-      MOZ_CRASH("GFX:  StereoModeFromBufferDescriptor");
+      MOZ_CRASH("GFX:  CbCrSizeFromBufferDescriptor");
   }
 }
 
@@ -184,6 +180,9 @@ already_AddRefed<DataSourceSurface>
 DataSourceSurfaceFromYCbCrDescriptor(uint8_t* aBuffer, const YCbCrDescriptor& aDescriptor, gfx::DataSourceSurface* aSurface)
 {
   gfx::IntSize ySize = aDescriptor.ySize();
+  gfx::IntSize cbCrSize = aDescriptor.cbCrSize();
+  int32_t yStride = ySize.width;
+  int32_t cbCrStride = cbCrSize.width;
 
   RefPtr<DataSourceSurface> result;
   if (aSurface) {
@@ -210,15 +209,14 @@ DataSourceSurfaceFromYCbCrDescriptor(uint8_t* aBuffer, const YCbCrDescriptor& aD
 
   layers::PlanarYCbCrData ycbcrData;
   ycbcrData.mYChannel     = GetYChannel(aBuffer, aDescriptor);
-  ycbcrData.mYStride      = aDescriptor.yStride();
+  ycbcrData.mYStride      = yStride;
   ycbcrData.mYSize        = ySize;
   ycbcrData.mCbChannel    = GetCbChannel(aBuffer, aDescriptor);
   ycbcrData.mCrChannel    = GetCrChannel(aBuffer, aDescriptor);
-  ycbcrData.mCbCrStride   = aDescriptor.cbCrStride();
+  ycbcrData.mCbCrStride   = cbCrStride;
-  ycbcrData.mCbCrSize     = aDescriptor.cbCrSize();
+  ycbcrData.mCbCrSize     = cbCrSize;
   ycbcrData.mPicSize      = ySize;
   ycbcrData.mYUVColorSpace = aDescriptor.yUVColorSpace();
-  ycbcrData.mDepth        = aDescriptor.depth();
 
   gfx::ConvertYCbCrToRGB(ycbcrData,
                          gfx::SurfaceFormat::B8G8R8X8,
@@ -239,18 +237,21 @@ ConvertAndScaleFromYCbCrDescriptor(uint8_t* aBuffer,
                                    int32_t aStride)
 {
   MOZ_ASSERT(aBuffer);
+  gfx::IntSize ySize = aDescriptor.ySize();
+  gfx::IntSize cbCrSize = aDescriptor.cbCrSize();
+  int32_t yStride = ySize.width;
+  int32_t cbCrStride = cbCrSize.width;
 
   layers::PlanarYCbCrData ycbcrData;
   ycbcrData.mYChannel     = GetYChannel(aBuffer, aDescriptor);
-  ycbcrData.mYStride      = aDescriptor.yStride();;
+  ycbcrData.mYStride      = yStride;
-  ycbcrData.mYSize        = aDescriptor.ySize();
+  ycbcrData.mYSize        = ySize;
   ycbcrData.mCbChannel    = GetCbChannel(aBuffer, aDescriptor);
   ycbcrData.mCrChannel    = GetCrChannel(aBuffer, aDescriptor);
-  ycbcrData.mCbCrStride   = aDescriptor.cbCrStride();
+  ycbcrData.mCbCrStride   = cbCrStride;
-  ycbcrData.mCbCrSize     = aDescriptor.cbCrSize();
+  ycbcrData.mCbCrSize     = cbCrSize;
-  ycbcrData.mPicSize      = aDescriptor.ySize();
+  ycbcrData.mPicSize      = ySize;
   ycbcrData.mYUVColorSpace = aDescriptor.yUVColorSpace();
-  ycbcrData.mDepth        = aDescriptor.depth();
 
   gfx::ConvertYCbCrToRGB(ycbcrData, aDestFormat, aDestSize, aDestBuffer, aStride);
 }

gfx/layers/ImageDataSerializer.h

@@ -45,6 +45,9 @@ uint32_t ComputeYCbCrBufferSize(const gfx::IntSize& aYSize,
                                 int32_t aYStride,
                                 const gfx::IntSize& aCbCrSize,
                                 int32_t aCbCrStride);
+uint32_t ComputeYCbCrBufferSize(const gfx::IntSize& aYSize,
+                                const gfx::IntSize& aCbCrSize);
+
 uint32_t ComputeYCbCrBufferSize(uint32_t aBufferSize);
 
 void ComputeYCbCrOffsets(int32_t yStride, int32_t yHeight,
@@ -59,8 +62,6 @@ Maybe<gfx::IntSize> CbCrSizeFromBufferDescriptor(const BufferDescriptor& aDescri
 
 Maybe<YUVColorSpace> YUVColorSpaceFromBufferDescriptor(const BufferDescriptor& aDescriptor);
 
-Maybe<uint32_t> DepthFromBufferDescriptor(const BufferDescriptor& aDescriptor);
-
 Maybe<StereoMode> StereoModeFromBufferDescriptor(const BufferDescriptor& aDescriptor);
 
 uint8_t* GetYChannel(uint8_t* aBuffer, const YCbCrDescriptor& aDescriptor);

gfx/layers/client/ImageClient.cpp

@@ -101,11 +101,8 @@ ImageClient::CreateTextureClientForImage(Image* aImage, KnowsCompositor* aForwar
       return nullptr;
     }
     texture = TextureClient::CreateForYCbCr(aForwarder,
-                                            data->mYSize, data->mYStride,
+                                            data->mYSize, data->mCbCrSize, data->mStereoMode,
-                                            data->mCbCrSize, data->mCbCrStride,
-                                            data->mStereoMode,
                                             data->mYUVColorSpace,
-                                            data->mDepth,
                                             TextureFlags::DEFAULT);
     if (!texture) {
       return nullptr;

gfx/layers/client/TextureClient.cpp

@@ -1256,12 +1256,9 @@ TextureClient::CreateForRawBufferAccess(LayersIPCChannel* aAllocator,
 already_AddRefed<TextureClient>
 TextureClient::CreateForYCbCr(KnowsCompositor* aAllocator,
                               gfx::IntSize aYSize,
-                              uint32_t aYStride,
                               gfx::IntSize aCbCrSize,
-                              uint32_t aCbCrStride,
                               StereoMode aStereoMode,
                               YUVColorSpace aYUVColorSpace,
-                              uint32_t aDepth,
                               TextureFlags aTextureFlags)
 {
   if (!aAllocator || !aAllocator->GetLayersIPCActor()->IPCOpen()) {
@@ -1272,12 +1269,9 @@ TextureClient::CreateForYCbCr(KnowsCompositor* aAllocator,
     return nullptr;
   }
 
-  TextureData* data =
+  TextureData* data = BufferTextureData::CreateForYCbCr(aAllocator, aYSize, aCbCrSize,
-    BufferTextureData::CreateForYCbCr(aAllocator,
-                                      aYSize, aYStride,
-                                      aCbCrSize, aCbCrStride,
                                                         aStereoMode, aYUVColorSpace,
-                                      aDepth, aTextureFlags);
+                                                        aTextureFlags);
   if (!data) {
     return nullptr;
   }
@@ -1291,15 +1285,15 @@ already_AddRefed<TextureClient>
 TextureClient::CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
                                             size_t aSize,
                                             YUVColorSpace aYUVColorSpace,
-                                            uint32_t aDepth,
                                             TextureFlags aTextureFlags)
 {
   if (!aAllocator || !aAllocator->GetLayersIPCActor()->IPCOpen()) {
     return nullptr;
   }
 
-  TextureData* data = BufferTextureData::CreateForYCbCrWithBufferSize(
+  TextureData* data =
-    aAllocator, aSize, aYUVColorSpace, aDepth, aTextureFlags);
+    BufferTextureData::CreateForYCbCrWithBufferSize(aAllocator, aSize, aYUVColorSpace,
+                                                    aTextureFlags);
   if (!data) {
     return nullptr;
   }
@@ -1308,28 +1302,26 @@ TextureClient::CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
                                       aAllocator->GetTextureForwarder());
 }
 
-TextureClient::TextureClient(TextureData* aData,
+TextureClient::TextureClient(TextureData* aData, TextureFlags aFlags, LayersIPCChannel* aAllocator)
-                             TextureFlags aFlags,
+: AtomicRefCountedWithFinalize("TextureClient")
-                             LayersIPCChannel* aAllocator)
+, mAllocator(aAllocator)
-  : AtomicRefCountedWithFinalize("TextureClient")
+, mActor(nullptr)
-  , mAllocator(aAllocator)
+, mData(aData)
-  , mActor(nullptr)
+, mFlags(aFlags)
-  , mData(aData)
+, mOpenMode(OpenMode::OPEN_NONE)
-  , mFlags(aFlags)
-  , mOpenMode(OpenMode::OPEN_NONE)
 #ifdef DEBUG
-  , mExpectedDtRefs(0)
+, mExpectedDtRefs(0)
 #endif
-  , mIsLocked(false)
+, mIsLocked(false)
-  , mIsReadLocked(false)
+, mIsReadLocked(false)
-  , mUpdated(false)
+, mUpdated(false)
-  , mAddedToCompositableClient(false)
+, mAddedToCompositableClient(false)
-  , mWorkaroundAnnoyingSharedSurfaceLifetimeIssues(false)
+, mWorkaroundAnnoyingSharedSurfaceLifetimeIssues(false)
-  , mWorkaroundAnnoyingSharedSurfaceOwnershipIssues(false)
+, mWorkaroundAnnoyingSharedSurfaceOwnershipIssues(false)
-  , mFwdTransactionId(0)
+, mFwdTransactionId(0)
-  , mSerial(++sSerialCounter)
+, mSerial(++sSerialCounter)
 #ifdef GFX_DEBUG_TRACK_CLIENTS_IN_POOL
-  , mPoolTracker(nullptr)
+, mPoolTracker(nullptr)
 #endif
 {
   mData->FillInfo(mInfo);
@@ -1765,18 +1757,14 @@ UpdateYCbCrTextureClient(TextureClient* aTexture, const PlanarYCbCrData& aData)
   srcData.y.size = aData.mYSize;
   srcData.y.stride = aData.mYStride;
   srcData.y.skip = aData.mYSkip;
-  MOZ_ASSERT(aData.mDepth == 8 || (aData.mDepth > 8 && aData.mDepth <= 16));
-  srcData.y.bytesPerPixel = (aData.mDepth > 8) ? 2 : 1;
   srcData.cb.data = aData.mCbChannel;
   srcData.cb.size = aData.mCbCrSize;
   srcData.cb.stride = aData.mCbCrStride;
   srcData.cb.skip = aData.mCbSkip;
-  srcData.cb.bytesPerPixel = (aData.mDepth > 8) ? 2 : 1;
   srcData.cr.data = aData.mCrChannel;
   srcData.cr.size = aData.mCbCrSize;
   srcData.cr.stride = aData.mCbCrStride;
   srcData.cr.skip = aData.mCrSkip;
-  srcData.cr.bytesPerPixel = (aData.mDepth > 8) ? 2 : 1;
   srcData.metadata = nullptr;
 
   if (!srcData.CopyInto(mapped)) {
@@ -1821,19 +1809,15 @@ MappedYCbCrChannelData::CopyInto(MappedYCbCrChannelData& aDst)
       // fast-ish path
       memcpy(aDst.data + i * aDst.stride,
              data + i * stride,
-             size.width * bytesPerPixel);
+             size.width);
     } else {
       // slow path
       uint8_t* src = data + i * stride;
       uint8_t* dst = aDst.data + i * aDst.stride;
       for (int32_t j = 0; j < size.width; ++j) {
-        for (uint32_t k = 0; k < bytesPerPixel; ++k) {
         *dst = *src;
-          src += 1;
+        src += 1 + skip;
-          dst += 1;
+        dst += 1 + aDst.skip;
-        }
-        src += skip;
-        dst += aDst.skip;
       }
     }
   }

gfx/layers/client/TextureClient.h

@@ -139,7 +139,6 @@ struct MappedYCbCrChannelData
   gfx::IntSize size;
   int32_t stride;
   int32_t skip;
-  uint32_t bytesPerPixel;
 
   bool CopyInto(MappedYCbCrChannelData& aDst);
 };
@@ -348,12 +347,9 @@ public:
   static already_AddRefed<TextureClient>
   CreateForYCbCr(KnowsCompositor* aAllocator,
                  gfx::IntSize aYSize,
-                 uint32_t aYStride,
                  gfx::IntSize aCbCrSize,
-                 uint32_t aCbCrStride,
                  StereoMode aStereoMode,
                  YUVColorSpace aYUVColorSpace,
-                 uint32_t aDepth,
                  TextureFlags aTextureFlags);
 
   // Creates and allocates a TextureClient (can be accessed through raw
@@ -373,7 +369,6 @@ public:
   CreateForYCbCrWithBufferSize(KnowsCompositor* aAllocator,
                                size_t aSize,
                                YUVColorSpace aYUVColorSpace,
-                               uint32_t aDepth,
                                TextureFlags aTextureFlags);
 
   // Creates and allocates a TextureClient of the same type.

gfx/layers/client/TextureClientRecycleAllocator.cpp

@@ -108,8 +108,6 @@ YCbCrTextureClientAllocationHelper::IsCompatible(TextureClient* aTextureClient)
       bufferData->GetCbCrSize().ref() != mData.mCbCrSize ||
       bufferData->GetYUVColorSpace().isNothing() ||
       bufferData->GetYUVColorSpace().ref() != mData.mYUVColorSpace ||
-      bufferData->GetDepth().isNothing() ||
-      bufferData->GetDepth().ref() != mData.mDepth ||
       bufferData->GetStereoMode().isNothing() ||
       bufferData->GetStereoMode().ref() != mData.mStereoMode) {
     return false;
@@ -121,11 +119,9 @@ already_AddRefed<TextureClient>
 YCbCrTextureClientAllocationHelper::Allocate(KnowsCompositor* aAllocator)
 {
   return TextureClient::CreateForYCbCr(aAllocator,
-                                       mData.mYSize, mData.mYStride,
+                                       mData.mYSize, mData.mCbCrSize,
-                                       mData.mCbCrSize, mData.mCbCrStride,
                                        mData.mStereoMode,
                                        mData.mYUVColorSpace,
-                                       mData.mDepth,
                                        mTextureFlags);
 }
 

gfx/layers/composite/TextureHost.cpp

@@ -880,16 +880,6 @@ BufferTextureHost::GetYUVColorSpace() const
   return YUVColorSpace::UNKNOWN;
 }
 
-uint32_t
-BufferTextureHost::GetDepth() const
-{
-  if (mFormat == gfx::SurfaceFormat::YUV) {
-    const YCbCrDescriptor& desc = mDescriptor.get_YCbCrDescriptor();
-    return desc.depth();
-  }
-  return 8;
-}
-
 bool
 BufferTextureHost::UploadIfNeeded()
 {
@@ -996,19 +986,19 @@ BufferTextureHost::Upload(nsIntRegion *aRegion)
 
     RefPtr<gfx::DataSourceSurface> tempY =
       gfx::Factory::CreateWrappingDataSourceSurface(ImageDataSerializer::GetYChannel(buf, desc),
-                                                    desc.yStride(),
+                                                    desc.ySize().width,
                                                     desc.ySize(),
-                                                    SurfaceFormatForAlphaDepth(desc.depth()));
+                                                    gfx::SurfaceFormat::A8);
     RefPtr<gfx::DataSourceSurface> tempCb =
       gfx::Factory::CreateWrappingDataSourceSurface(ImageDataSerializer::GetCbChannel(buf, desc),
-                                                    desc.cbCrStride(),
+                                                    desc.cbCrSize().width,
                                                     desc.cbCrSize(),
-                                                    SurfaceFormatForAlphaDepth(desc.depth()));
+                                                    gfx::SurfaceFormat::A8);
     RefPtr<gfx::DataSourceSurface> tempCr =
       gfx::Factory::CreateWrappingDataSourceSurface(ImageDataSerializer::GetCrChannel(buf, desc),
-                                                    desc.cbCrStride(),
+                                                    desc.cbCrSize().width,
                                                     desc.cbCrSize(),
-                                                    SurfaceFormatForAlphaDepth(desc.depth()));
+                                                    gfx::SurfaceFormat::A8);
     // We don't support partial updates for Y U V textures
     NS_ASSERTION(!aRegion, "Unsupported partial updates for YCbCr textures");
     if (!tempY ||

gfx/layers/composite/TextureHost.h

@@ -438,11 +438,6 @@ public:
 
   virtual YUVColorSpace GetYUVColorSpace() const { return YUVColorSpace::UNKNOWN; }
 
-  /**
-   * Return the bit depth of the image. Used with YUV textures.
-   */
-  virtual uint32_t GetDepth() const { return 8; }
-
   /**
    * Called during the transaction. The TextureSource may or may not be composited.
    *
@@ -737,8 +732,6 @@ public:
 
   virtual YUVColorSpace GetYUVColorSpace() const override;
 
-  virtual uint32_t GetDepth() const override;
-
   virtual gfx::IntSize GetSize() const override { return mSize; }
 
   virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;

gfx/layers/ipc/LayersSurfaces.ipdlh

@@ -100,15 +100,12 @@ struct RGBDescriptor {
 
 struct YCbCrDescriptor {
   IntSize ySize;
-  uint32_t yStride;
   IntSize cbCrSize;
-  uint32_t cbCrStride;
   uint32_t yOffset;
   uint32_t cbOffset;
   uint32_t crOffset;
   StereoMode stereoMode;
   YUVColorSpace yUVColorSpace;
-  uint32_t depth;
   bool hasIntermediateBuffer;
 };
 

gfx/layers/ipc/SharedPlanarYCbCrImage.cpp

@@ -113,21 +113,13 @@ SharedPlanarYCbCrImage::AdoptData(const Data& aData)
   uint32_t crOffset = aData.mCrChannel - base;
 
   auto fwd = mCompositable->GetForwarder();
-  bool hasIntermediateBuffer = ComputeHasIntermediateBuffer(
+  bool hasIntermediateBuffer = ComputeHasIntermediateBuffer(gfx::SurfaceFormat::YUV,
-    gfx::SurfaceFormat::YUV, fwd->GetCompositorBackendType());
+                                                            fwd->GetCompositorBackendType());
 
-  static_cast<BufferTextureData*>(mTextureClient->GetInternalData())
+  static_cast<BufferTextureData*>(mTextureClient->GetInternalData())->SetDesciptor(
-    ->SetDesciptor(YCbCrDescriptor(aData.mYSize,
+    YCbCrDescriptor(aData.mYSize, aData.mCbCrSize, yOffset, cbOffset, crOffset,
-                                   aData.mYStride,
+                    aData.mStereoMode, aData.mYUVColorSpace, hasIntermediateBuffer)
-                                   aData.mCbCrSize,
+  );
-                                   aData.mCbCrStride,
-                                   yOffset,
-                                   cbOffset,
-                                   crOffset,
-                                   aData.mStereoMode,
-                                   aData.mYUVColorSpace,
-                                   aData.mDepth,
-                                   hasIntermediateBuffer));
 
   return true;
 }
@@ -183,20 +175,18 @@ SharedPlanarYCbCrImage::Allocate(PlanarYCbCrData& aData)
   mData.mPicSize = aData.mPicSize;
   mData.mStereoMode = aData.mStereoMode;
   mData.mYUVColorSpace = aData.mYUVColorSpace;
-  mData.mDepth = aData.mDepth;
   // those members are not always equal to aData's, due to potentially different
   // packing.
   mData.mYSkip = 0;
   mData.mCbSkip = 0;
   mData.mCrSkip = 0;
-  mData.mYStride = aData.mYStride;
+  mData.mYStride = mData.mYSize.width;
-  mData.mCbCrStride = aData.mCbCrStride;
+  mData.mCbCrStride = mData.mCbCrSize.width;
 
   // do not set mBuffer like in PlanarYCbCrImage because the later
   // will try to manage this memory without knowing it belongs to a
   // shmem.
-  mBufferSize = ImageDataSerializer::ComputeYCbCrBufferSize(
+  mBufferSize = ImageDataSerializer::ComputeYCbCrBufferSize(mData.mYSize, mData.mCbCrSize);
-    mData.mYSize, mData.mYStride, mData.mCbCrSize, mData.mCbCrStride);
   mSize = mData.mPicSize;
   mOrigin = gfx::IntPoint(aData.mPicX, aData.mPicY);
 

gfx/tests/gtest/TestTextures.cpp

@@ -262,7 +262,6 @@ TEST(Layers, TextureYCbCrSerialization) {
   clientData.mCbCrStride = cbSurface->Stride();
   clientData.mStereoMode = StereoMode::MONO;
   clientData.mYUVColorSpace = YUVColorSpace::BT601;
-  clientData.mDepth = 8;
   clientData.mYSkip = 0;
   clientData.mCbSkip = 0;
   clientData.mCrSkip = 0;
@@ -291,9 +290,9 @@ TEST(Layers, TextureYCbCrSerialization) {
     return;
   }
 
-  RefPtr<TextureClient> client = TextureClient::CreateForYCbCr(imageBridge, clientData.mYSize, clientData.mYStride, clientData.mCbCrSize, clientData.mCbCrStride,
+  RefPtr<TextureClient> client = TextureClient::CreateForYCbCr(imageBridge, clientData.mYSize, clientData.mCbCrSize,
                                                                StereoMode::MONO, YUVColorSpace::BT601,
-                                                               8, TextureFlags::DEALLOCATE_CLIENT);
+                                                               TextureFlags::DEALLOCATE_CLIENT);
 
   TestTextureClientYCbCr(client, clientData);
 

gfx/tests/gtest/TextureHelper.h

@@ -62,14 +62,9 @@ CreateYCbCrTextureClientWithBackend(LayersBackend aLayersBackend)
 
   // Create YCbCrTexture for basice backend.
   if (aLayersBackend == LayersBackend::LAYERS_BASIC) {
-    return TextureClient::CreateForYCbCr(nullptr,
+    return TextureClient::CreateForYCbCr(nullptr, clientData.mYSize,
-                                         clientData.mYSize,
+                                         clientData.mCbCrSize, StereoMode::MONO,
-                                         clientData.mYStride,
-                                         clientData.mCbCrSize,
-                                         clientData.mCbCrStride,
-                                         StereoMode::MONO,
                                          YUVColorSpace::BT601,
-                                         8,
                                          TextureFlags::DEALLOCATE_CLIENT);
   }