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Bug 1881076 - Ref snapshot shmem. r=aosmond

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Differential Revision: https://phabricator.services.mozilla.com/D205404
This commit is contained in:
Lee Salzman 2024-03-22 06:02:14 +00:00
parent 2537e5eaaf
commit 6525b36941
1 changed files with 13 additions and 8 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

21
gfx/layers/ipc/CanvasChild.cpp
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@ -511,6 +511,10 @@ already_AddRefed<gfx::DataSourceSurface> CanvasChild::GetDataSurface(
return nullptr;
}
gfx::IntSize ssSize = aSurface->GetSize();
gfx::SurfaceFormat ssFormat = aSurface->GetFormat();
auto stride = ImageDataSerializer::ComputeRGBStride(ssFormat, ssSize.width);
// Shmem is only valid if the surface is the latest snapshot (not detached).
if (!aDetached) {
// If there is a shmem associated with this snapshot id, then we want to try
@ -525,12 +529,16 @@ already_AddRefed<gfx::DataSourceSurface> CanvasChild::GetDataSurface(
if (NS_WARN_IF(!mRecorder->WaitForCheckpoint(checkpoint))) {
return nullptr;
}
gfx::IntSize size = aSurface->GetSize();
gfx::SurfaceFormat format = aSurface->GetFormat();
auto stride = ImageDataSerializer::ComputeRGBStride(format, size.width);
auto* closure =
new CanvasDataShmemHolder(it->second.mSnapshotShmem, this);
if (NS_WARN_IF(!closure->Init(mWorkerRef))) {
delete closure;
return nullptr;
}
RefPtr<gfx::DataSourceSurface> dataSurface =
gfx::Factory::CreateWrappingDataSourceSurface(shmemPtr, stride, size,
format);
gfx::Factory::CreateWrappingDataSourceSurface(
shmemPtr, stride, ssSize, ssFormat, ReleaseDataShmemHolder,
closure);
aMayInvalidate = true;
return dataSurface.forget();
}
@ -538,8 +546,6 @@ already_AddRefed<gfx::DataSourceSurface> CanvasChild::GetDataSurface(
RecordEvent(RecordedPrepareDataForSurface(aSurface));
gfx::IntSize ssSize = aSurface->GetSize();
gfx::SurfaceFormat ssFormat = aSurface->GetFormat();
if (!EnsureDataSurfaceShmem(ssSize, ssFormat)) {
return nullptr;
}
@ -559,7 +565,6 @@ already_AddRefed<gfx::DataSourceSurface> CanvasChild::GetDataSurface(
mDataSurfaceShmemAvailable = false;
auto* data = static_cast<uint8_t*>(mDataSurfaceShmem->memory());
auto stride = ImageDataSerializer::ComputeRGBStride(ssFormat, ssSize.width);
RefPtr<gfx::DataSourceSurface> dataSurface =
gfx::Factory::CreateWrappingDataSourceSurface(