Modify AHardwareBuffer implementation as to support gl::SharedSurface of out-of-process WebGL. And remove unused AHardwareBuffer implementation.
By limiting AHardwareBuffer only in GPU process, AHardwareBuffer implementation becomes simpler. We do not need to handle cross process AHardwareBuffer delivery and cross process android Fence delivery.
Differential Revision: https://phabricator.services.mozilla.com/D167911
This updates the version wpf-gpu-raster which adds support for
GPUs/drivers that use truncation instead of rounding when converting
vertices to fixed point.
It also adds the GL vendor to InitContextResult so that we can detect
AMD on macOS and tell wpf-gpu-raster that truncation is going to happen.
Differential Revision: https://phabricator.services.mozilla.com/D167503
WebGPU uses CompositableInProcessManager to push TextureHost directly from WebGPUParent to WebRender. But CompositableInProcessManager plumbing has a problem and caused Bug 1805209.
gecko already has a similar mechanism, called RemoteTextureMap. It is used in oop WebGL. If WebGPU uses RemoteTextureMap instead of CompositableInProcessManager, both WebGPU and oop WebGL use same mechanism.
WebGPUParent pushes a new texture to RemoteTextureMap. The RemoteTextureMap notifies the pushed texture to WebRenderImageHost.
Before the change, only one TextureHost is used for one swap chain. With the change, multiple TextureHosts are used for one swap chain with recycling.
The changes are followings.
- Use RemoteTextureMap instead of CompositableInProcessManager.
- Use RemoteTextureOwnerId instead of CompositableHandle.
- Use WebRenderCanvasData instead of WebRenderInProcessImageData.
- Add remote texture pushed callback functionality to RemoteTextureMap. With it, RemoteTextureMap notifies a new pushed remote texture to WebRenderImageHost.
- Remove CompositableInProcessManager.
Differential Revision: https://phabricator.services.mozilla.com/D164890
The change addressed followings problems.
- Recycling of gl::SharedSurface by RemoteTextureMap is not handled by gl::SwapChain.
- PrepareForUse()/NotifyNotUsed() of remote texture's TextureHost(SurfaceTextureHost) is not handled
- Wrapping of RenderAndroidSurfaceTextureHost by RenderTextureHostWrapper is not handled
PrepareForUse()/NotifyNotUsed() is called based on compositor ref count of TextureHost. Normally TextureHost is wrapped by WebRenderTextureHost, then the WebRenderTextureHost handles PrepareForUse()/NotifyNotUsed(). But in remote texture case, WebRenderTextureHost wraps RemoteTextureHostWrapper. And compositable ref of remote texture's TextureHost is updated within RemoteTextureMap::mMutex. Then PrepareForUse()/NotifyNotUsed() happen outside of WebRenderTextureHost in non compositor thread.
With pref gfx.canvas.accelerated=true, canvas renderings were broken on android emulator. The boroken rendering seemed to happen by GL of android emulator. The boroken rendering did not happen with tests on android hardware.
Differential Revision: https://phabricator.services.mozilla.com/D159261
```
// We guarantee our robustness via these requirements:
// * Object.MutTiedFields() gives us a tuple,
// * where the combined sizeofs all field types sums to sizeof(Object),
// * (thus we know we are exhaustively listing all fields)
// * where feeding each field back into ParamTraits succeeds,
// * and ParamTraits is only automated for BytesAlwaysValidT<T> types.
// (BytesAlwaysValidT rejects bool and enum types, and only accepts int/float
// types, or array or std::arrays of such types)
// (Yes, bit-field fields are rejected by MutTiedFields too)
```
BytesAlwaysValidT<T> is the same as the IsTriviallySerializable<T> that
it replaces, however the emphasis is different, and should discourage
tagging structs as IsTriviallySerializable, since they more clearly
aren't BytesAlwaysValid.
Differential Revision: https://phabricator.services.mozilla.com/D151676
Since the BufferTextureData is getting created based on ImageDataSerialize::ComputeRGBBufferSize,
the stride may be padded for alignment which doesn't agree with the simple calculation duplicated
here. In general, it is less error-prone to just ask the BufferTextureData itself for its buffer
size, so just do that here instead rather than trying to make duplicate calculations with invalid
assumptions.
Differential Revision: https://phabricator.services.mozilla.com/D153868
`Maybe` isn't is_trivially_copyable, and std::optional isn't either on
the old libstdc++ we use from gcc7 still.
I'm working on more robust approach to serialization but that's beyond
the scope of this bug.
Differential Revision: https://phabricator.services.mozilla.com/D151421
`Maybe` isn't is_trivially_copyable, and std::optional isn't either on
the old libstdc++ we use from gcc7 still.
I'm working on more robust approach to serialization but that's beyond
the scope of this bug.
Differential Revision: https://phabricator.services.mozilla.com/D151421
Currently CopyToSwapChain creates spurious copies of the back buffer when SharedSurfaces aren't exportable (= ToSurfaceDescriptor returns Nothing from SharedSurface_Basic). These then later get read back into a CPU memory buffer when PresentFrontBufferToCompositor is used to send the buffer to RemoteTextureMap. This has associated performance and memory costs.
Conceptually, we want Present/CopyToSwapChain to just do the right thing and automatically push buffers to RemoteTextureMap, rather than secondarily needing a hidden call to PresentFrontBufferToCompositor. Then we can get rid of the need to create front buffers whose only purpose is to shuttle data to PresentFrontBufferToCompositor which then shuttles it RemoteTextureMap.
This patch achieves this by refactoring the guts of PresentFrontBufferToCompositor into Present/CopyToSwapChain. The remote texture ids are sent along inside SwapChainOptions if async present is enabled. Those remote texture ids are cached in ClientWebGLContext so that GetFrontBuffer can return them without any subsequent need for an IPDL call.
On the parent side, CopyToSwapChain will now notice if async present is to be used and if a SurfaceFactory does not generate SharedSurfaces that can be exported. In that case it cuts out the middle man and reads from the WebGLFramebuffer's back buffer directly into a CPU buffer to send to RemoteTextureMap.
This also adds a forceAsyncPresent option to SwapChainOptions so that in the future we can have a separate pref for Accelerated Canvas2D that will allow enabling async present independent of the global WebGL pref.
Differential Revision: https://phabricator.services.mozilla.com/D150720
The async front buffer posting is going to be enabled by another bug.
Async IPC was added for async front buffer posting for out-of-process WebGL.
Client does not use TextureClient for storing SurfaceDescriptor.
It works basically same way as to in-process WebGL around nsDisplayCanvas, WebRenderCanvasData, WebRenderCommandBuilder and WebRenderBridgeParent.
SharedSurfaces of SurfaceDescriptorD3D10 are kept alive during their usage. It is for keeping a shread handle valid.
Copied data buffers of SharedShurface_Basics are kept alive during their usage. It is for keeping RenderBufferTextureHost valid.
Differential Revision: https://phabricator.services.mozilla.com/D150197
The async front buffer posting is going to be enabled by another bug.
Async IPC was added for async front buffer posting for out-of-process WebGL.
Client does not use TextureClient for storing SurfaceDescriptor.
It works basically same way as to in-process WebGL around nsDisplayCanvas, WebRenderCanvasData, WebRenderCommandBuilder and WebRenderBridgeParent.
SharedSurfaces of SurfaceDescriptorD3D10 are kept alive during their usage. It is for keeping a shread handle valid.
Copied data buffers of SharedShurface_Basics are kept alive during their usage. It is for keeping RenderBufferTextureHost valid.
Differential Revision: https://phabricator.services.mozilla.com/D150197
For use within accelerated Canvas2D, it is expedient to have a variant of Present
that explicitly acknowledges that there is a copy from a supplied WebGL framebuffer
into the swap chain back buffer, as is usually the case when remoting, so that it
can be relied upon for format conversions or other concerns. This allows Present
to remain simple and assume rendering happened directly to the back buffer, without
need of a copy.
This backs out some of the earlier changes to Present in 1754130 in favor of
separating the new copy behavior into an explicit CopyToSwapChain interface,
which supports a format swizzle that is useful for converting between Canvas2D
and WebGL swap chain formats. The behavior of CopyToSwapChain, as noted,
assumes that there is a supplied WebGL framebuffer that must be copied to the
swap chain back buffer before any compositing should occur.
Differential Revision: https://phabricator.services.mozilla.com/D138954
* Accept that finding an explicit unpack for a given stride might fail.
* Directly use the logic from the GLES spec for unpacking stride calculations.
* Use structuredSrcSize member.
* Calc explicit unpack based on dstStride, not srcStride.
Differential Revision: https://phabricator.services.mozilla.com/D136052
Most of the support for presenting a WebGLFramebuffer to a swap chain existed as part of the
mechanism for opaque WebXR framebuffer support. However, such "opaque" framebuffer are meant
to be opaque in the sense that their attachments can't be inspected or changed, which does
not provide the requisite level of control for efficiently implementing Canvas2D snapshots.
To this end, the existing Present mechanism is slightly extended to allow presenting to the
swap chain already present in WebGLFramebuffer without the existence of a corresponding
MozFramebuffer.
This also fixes a bug in that AsWebgl() was no longer being utilized in CanvasRenderer, such
that a new mechanism that routed GetFrontBuffer() was needed to fix the code rot.
There are also some efforts to remove a couple redundant copies I noticed in profiles along
the way.
Differential Revision: https://phabricator.services.mozilla.com/D138119
Kelsey Gilbert
stransky
sotaro
Jeff Muizelaar
Botond Ballo
Marian-Vasile Laza
Cristian Tuns
Lee Salzman
Andrew Osmond
Iulian Moraru
Narcis Beleuzu
smolnar
criss
Norisz Fay
Kelsey Gilbert
Csoregi Natalia