Source code

Revision control

Copy as Markdown

Other Tools

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebRenderCanvasRenderer.h"
#include "GLContext.h"
#include "GLScreenBuffer.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/StaticPrefs_webgl.h"
#include "SharedSurfaceGL.h"
#include "WebRenderBridgeChild.h"
namespace mozilla {
namespace layers {
CompositableForwarder* WebRenderCanvasRenderer::GetForwarder() {
return mManager->WrBridge();
}
WebRenderCanvasRendererAsync::~WebRenderCanvasRendererAsync() {
if (mPipelineId.isSome()) {
mManager->RemovePipelineIdForCompositable(mPipelineId.ref());
mPipelineId.reset();
}
}
void WebRenderCanvasRendererAsync::Initialize(const CanvasRendererData& aData) {
WebRenderCanvasRenderer::Initialize(aData);
ClearCachedResources();
}
bool WebRenderCanvasRendererAsync::CreateCompositable() {
if (!mCanvasClient) {
auto compositableFlags = TextureFlags::NO_FLAGS;
if (!mData.mIsAlphaPremult) {
// WR needs this flag marked on the compositable, not just the texture.
compositableFlags |= TextureFlags::NON_PREMULTIPLIED;
}
mCanvasClient = new CanvasClient(GetForwarder(), compositableFlags);
mCanvasClient->Connect();
}
return true;
}
void WebRenderCanvasRendererAsync::EnsurePipeline(bool aIsAsync) {
MOZ_ASSERT(mCanvasClient);
if (!mCanvasClient) {
return;
}
if (StaticPrefs::webgl_out_of_process_async_present_force_sync()) {
// pref webgl.out-of-process.async-present.force-sync = true forces async
// present to wait for a sync, even while using remote textures.
aIsAsync = false;
} else {
// When image pipeline is updated in empty transaction, display list still
// refers to deleted image pipeline. See Bug 1782044.
// XXX address image pipeline update problem in empty transaction.
MOZ_ASSERT_UNREACHABLE("unexpected to be called");
}
if (mPipelineId && mIsAsync != aIsAsync) {
mManager->RemovePipelineIdForCompositable(mPipelineId.ref());
mPipelineId.reset();
}
if (mPipelineId) {
return;
}
if (mIsAsync != aIsAsync) {
GetForwarder()->EnableAsyncCompositable(mCanvasClient, aIsAsync);
mIsAsync = aIsAsync;
}
// Alloc async image pipeline id.
mPipelineId = Some(
mManager->WrBridge()->GetCompositorBridgeChild()->GetNextPipelineId());
mManager->AddPipelineIdForCompositable(
mPipelineId.ref(), mCanvasClient->GetIPCHandle(),
CompositableHandleOwner::WebRenderBridge);
}
void WebRenderCanvasRendererAsync::ClearCachedResources() {
if (mPipelineId.isSome()) {
mManager->RemovePipelineIdForCompositable(mPipelineId.ref());
mPipelineId.reset();
}
}
void WebRenderCanvasRendererAsync::
UpdateCompositableClientForEmptyTransaction() {
bool wasDirty = IsDirty();
UpdateCompositableClient();
if (wasDirty && mPipelineId.isSome()) {
// Notify an update of async image pipeline during empty transaction.
// During non empty transaction, WebRenderBridgeParent receives
// OpUpdateAsyncImagePipeline message, but during empty transaction, the
// message is not sent to WebRenderBridgeParent. Then
// OpUpdatedAsyncImagePipeline is used to notify the update.
mManager->AddWebRenderParentCommand(
OpUpdatedAsyncImagePipeline(mPipelineId.ref()));
}
}
} // namespace layers
} // namespace mozilla