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WebRenderAPI.cpp
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WebRenderAPI.cpp
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/* -*- 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 "WebRenderAPI.h"
#include "gfxPrefs.h"
#include "LayersLogging.h"
#include "mozilla/webrender/RendererOGL.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/webrender/RenderCompositor.h"
#include "mozilla/widget/CompositorWidget.h"
#include "mozilla/layers/SynchronousTask.h"
#define WRDL_LOG(...)
//#define WRDL_LOG(...) printf_stderr("WRDL(%p): " __VA_ARGS__)
//#define WRDL_LOG(...) if (XRE_IsContentProcess()) printf_stderr("WRDL(%p): " __VA_ARGS__)
namespace mozilla {
namespace wr {
using layers::Stringify;
MOZ_DEFINE_MALLOC_SIZE_OF(WebRenderMallocSizeOf)
class NewRenderer : public RendererEvent
{
public:
NewRenderer(wr::DocumentHandle** aDocHandle,
layers::CompositorBridgeParent* aBridge,
uint32_t* aMaxTextureSize,
bool* aUseANGLE,
bool* aUseDComp,
RefPtr<widget::CompositorWidget>&& aWidget,
layers::SynchronousTask* aTask,
LayoutDeviceIntSize aSize,
layers::SyncHandle* aHandle)
: mDocHandle(aDocHandle)
, mMaxTextureSize(aMaxTextureSize)
, mUseANGLE(aUseANGLE)
, mUseDComp(aUseDComp)
, mBridge(aBridge)
, mCompositorWidget(std::move(aWidget))
, mTask(aTask)
, mSize(aSize)
, mSyncHandle(aHandle)
{
MOZ_COUNT_CTOR(NewRenderer);
}
~NewRenderer()
{
MOZ_COUNT_DTOR(NewRenderer);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
layers::AutoCompleteTask complete(mTask);
UniquePtr<RenderCompositor> compositor = RenderCompositor::Create(std::move(mCompositorWidget));
if (!compositor) {
// RenderCompositor::Create puts a message into gfxCriticalNote if it is nullptr
return;
}
*mUseANGLE = compositor->UseANGLE();
*mUseDComp = compositor->UseDComp();
bool supportLowPriorityTransactions = true; // TODO only for main windows.
wr::Renderer* wrRenderer = nullptr;
if (!wr_window_new(aWindowId, mSize.width, mSize.height, supportLowPriorityTransactions,
compositor->gl(),
aRenderThread.ProgramCache() ? aRenderThread.ProgramCache()->Raw() : nullptr,
aRenderThread.Shaders() ? aRenderThread.Shaders()->RawShaders() : nullptr,
aRenderThread.ThreadPool().Raw(),
&WebRenderMallocSizeOf,
mDocHandle, &wrRenderer,
mMaxTextureSize)) {
// wr_window_new puts a message into gfxCriticalNote if it returns false
return;
}
MOZ_ASSERT(wrRenderer);
RefPtr<RenderThread> thread = &aRenderThread;
auto renderer = MakeUnique<RendererOGL>(std::move(thread),
std::move(compositor),
aWindowId,
wrRenderer,
mBridge);
if (wrRenderer && renderer) {
wr::WrExternalImageHandler handler = renderer->GetExternalImageHandler();
wr_renderer_set_external_image_handler(wrRenderer, &handler);
}
if (renderer) {
layers::SyncObjectHost* syncObj = renderer->GetSyncObject();
if (syncObj) {
*mSyncHandle = syncObj->GetSyncHandle();
}
}
aRenderThread.AddRenderer(aWindowId, std::move(renderer));
}
private:
wr::DocumentHandle** mDocHandle;
uint32_t* mMaxTextureSize;
bool* mUseANGLE;
bool* mUseDComp;
layers::CompositorBridgeParent* mBridge;
RefPtr<widget::CompositorWidget> mCompositorWidget;
layers::SynchronousTask* mTask;
LayoutDeviceIntSize mSize;
layers::SyncHandle* mSyncHandle;
};
class RemoveRenderer : public RendererEvent
{
public:
explicit RemoveRenderer(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(RemoveRenderer);
}
~RemoveRenderer()
{
MOZ_COUNT_DTOR(RemoveRenderer);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.RemoveRenderer(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
private:
layers::SynchronousTask* mTask;
};
TransactionBuilder::TransactionBuilder(bool aUseSceneBuilderThread)
: mUseSceneBuilderThread(aUseSceneBuilderThread)
{
mTxn = wr_transaction_new(mUseSceneBuilderThread);
}
TransactionBuilder::~TransactionBuilder()
{
wr_transaction_delete(mTxn);
}
void
TransactionBuilder::SetLowPriority(bool aIsLowPriority)
{
wr_transaction_set_low_priority(mTxn, aIsLowPriority);
}
void
TransactionBuilder::UpdateEpoch(PipelineId aPipelineId, Epoch aEpoch)
{
wr_transaction_update_epoch(mTxn, aPipelineId, aEpoch);
}
void
TransactionBuilder::SetRootPipeline(PipelineId aPipelineId)
{
wr_transaction_set_root_pipeline(mTxn, aPipelineId);
}
void
TransactionBuilder::RemovePipeline(PipelineId aPipelineId)
{
wr_transaction_remove_pipeline(mTxn, aPipelineId);
}
void
TransactionBuilder::SetDisplayList(gfx::Color aBgColor,
Epoch aEpoch,
mozilla::LayerSize aViewportSize,
wr::WrPipelineId pipeline_id,
const wr::LayoutSize& content_size,
wr::BuiltDisplayListDescriptor dl_descriptor,
wr::Vec<uint8_t>& dl_data)
{
wr_transaction_set_display_list(mTxn,
aEpoch,
ToColorF(aBgColor),
aViewportSize.width, aViewportSize.height,
pipeline_id,
content_size,
dl_descriptor,
&dl_data.inner);
}
void
TransactionBuilder::ClearDisplayList(Epoch aEpoch, wr::WrPipelineId aPipelineId)
{
wr_transaction_clear_display_list(mTxn, aEpoch, aPipelineId);
}
void
TransactionBuilder::GenerateFrame()
{
wr_transaction_generate_frame(mTxn);
}
void
TransactionBuilder::InvalidateRenderedFrame()
{
wr_transaction_invalidate_rendered_frame(mTxn);
}
void
TransactionBuilder::UpdateDynamicProperties(const nsTArray<wr::WrOpacityProperty>& aOpacityArray,
const nsTArray<wr::WrTransformProperty>& aTransformArray)
{
wr_transaction_update_dynamic_properties(
mTxn,
aOpacityArray.IsEmpty() ? nullptr : aOpacityArray.Elements(),
aOpacityArray.Length(),
aTransformArray.IsEmpty() ? nullptr : aTransformArray.Elements(),
aTransformArray.Length());
}
bool
TransactionBuilder::IsEmpty() const
{
return wr_transaction_is_empty(mTxn);
}
void
TransactionBuilder::SetWindowParameters(const LayoutDeviceIntSize& aWindowSize,
const LayoutDeviceIntRect& aDocumentRect)
{
wr::DeviceUintSize wrWindowSize;
wrWindowSize.width = aWindowSize.width;
wrWindowSize.height = aWindowSize.height;
wr::DeviceUintRect wrDocRect;
wrDocRect.origin.x = aDocumentRect.x;
wrDocRect.origin.y = aDocumentRect.y;
wrDocRect.size.width = aDocumentRect.width;
wrDocRect.size.height = aDocumentRect.height;
wr_transaction_set_window_parameters(mTxn, &wrWindowSize, &wrDocRect);
}
void
TransactionBuilder::UpdateScrollPosition(const wr::WrPipelineId& aPipelineId,
const layers::FrameMetrics::ViewID& aScrollId,
const wr::LayoutPoint& aScrollPosition)
{
wr_transaction_scroll_layer(mTxn, aPipelineId, aScrollId, aScrollPosition);
}
TransactionWrapper::TransactionWrapper(Transaction* aTxn)
: mTxn(aTxn)
{
}
void
TransactionWrapper::AppendTransformProperties(const nsTArray<wr::WrTransformProperty>& aTransformArray)
{
wr_transaction_append_transform_properties(
mTxn,
aTransformArray.IsEmpty() ? nullptr : aTransformArray.Elements(),
aTransformArray.Length());
}
void
TransactionWrapper::UpdateScrollPosition(const wr::WrPipelineId& aPipelineId,
const layers::FrameMetrics::ViewID& aScrollId,
const wr::LayoutPoint& aScrollPosition)
{
wr_transaction_scroll_layer(mTxn, aPipelineId, aScrollId, aScrollPosition);
}
void
TransactionWrapper::UpdatePinchZoom(float aZoom)
{
wr_transaction_pinch_zoom(mTxn, aZoom);
}
/*static*/ already_AddRefed<WebRenderAPI>
WebRenderAPI::Create(layers::CompositorBridgeParent* aBridge,
RefPtr<widget::CompositorWidget>&& aWidget,
const wr::WrWindowId& aWindowId,
LayoutDeviceIntSize aSize)
{
MOZ_ASSERT(aBridge);
MOZ_ASSERT(aWidget);
static_assert(sizeof(size_t) == sizeof(uintptr_t),
"The FFI bindings assume size_t is the same size as uintptr_t!");
wr::DocumentHandle* docHandle = nullptr;
uint32_t maxTextureSize = 0;
bool useANGLE = false;
bool useDComp = false;
layers::SyncHandle syncHandle = 0;
// Dispatch a synchronous task because the DocumentHandle object needs to be created
// on the render thread. If need be we could delay waiting on this task until
// the next time we need to access the DocumentHandle object.
layers::SynchronousTask task("Create Renderer");
auto event = MakeUnique<NewRenderer>(&docHandle, aBridge, &maxTextureSize, &useANGLE, &useDComp,
std::move(aWidget), &task, aSize,
&syncHandle);
RenderThread::Get()->RunEvent(aWindowId, std::move(event));
task.Wait();
if (!docHandle) {
return nullptr;
}
return RefPtr<WebRenderAPI>(new WebRenderAPI(docHandle, aWindowId, maxTextureSize, useANGLE, useDComp, syncHandle)).forget();
}
already_AddRefed<WebRenderAPI>
WebRenderAPI::Clone()
{
wr::DocumentHandle* docHandle = nullptr;
wr_api_clone(mDocHandle, &docHandle);
RefPtr<WebRenderAPI> renderApi = new WebRenderAPI(docHandle, mId, mMaxTextureSize, mUseANGLE, mUseDComp, mSyncHandle);
renderApi->mRootApi = this; // Hold root api
renderApi->mRootDocumentApi = this;
return renderApi.forget();
}
already_AddRefed<WebRenderAPI>
WebRenderAPI::CreateDocument(LayoutDeviceIntSize aSize, int8_t aLayerIndex)
{
wr::DeviceUintSize wrSize;
wrSize.width = aSize.width;
wrSize.height = aSize.height;
wr::DocumentHandle* newDoc;
wr_api_create_document(mDocHandle, &newDoc, wrSize, aLayerIndex);
RefPtr<WebRenderAPI> api(new WebRenderAPI(newDoc, mId,
mMaxTextureSize,
mUseANGLE,
mUseDComp,
mSyncHandle));
api->mRootApi = this;
return api.forget();
}
wr::WrIdNamespace
WebRenderAPI::GetNamespace() {
return wr_api_get_namespace(mDocHandle);
}
WebRenderAPI::~WebRenderAPI()
{
if (!mRootDocumentApi) {
wr_api_delete_document(mDocHandle);
}
if (!mRootApi) {
RenderThread::Get()->SetDestroyed(GetId());
layers::SynchronousTask task("Destroy WebRenderAPI");
auto event = MakeUnique<RemoveRenderer>(&task);
RunOnRenderThread(std::move(event));
task.Wait();
wr_api_shut_down(mDocHandle);
}
wr_api_delete(mDocHandle);
}
void
WebRenderAPI::SendTransaction(TransactionBuilder& aTxn)
{
wr_api_send_transaction(mDocHandle, aTxn.Raw(), aTxn.UseSceneBuilderThread());
}
bool
WebRenderAPI::HitTest(const wr::WorldPoint& aPoint,
wr::WrPipelineId& aOutPipelineId,
layers::FrameMetrics::ViewID& aOutScrollId,
gfx::CompositorHitTestInfo& aOutHitInfo)
{
static_assert(DoesCompositorHitTestInfoFitIntoBits<16>(),
"CompositorHitTestFlags MAX value has to be less than number of bits in uint16_t");
uint16_t serialized = static_cast<uint16_t>(aOutHitInfo.serialize());
const bool result = wr_api_hit_test(mDocHandle, aPoint,
&aOutPipelineId, &aOutScrollId, &serialized);
if (result) {
aOutHitInfo.deserialize(serialized);
}
return result;
}
void
WebRenderAPI::Readback(const TimeStamp& aStartTime,
gfx::IntSize size,
const Range<uint8_t>& buffer)
{
class Readback : public RendererEvent
{
public:
explicit Readback(layers::SynchronousTask* aTask,
TimeStamp aStartTime,
gfx::IntSize aSize, const Range<uint8_t>& aBuffer)
: mTask(aTask)
, mStartTime(aStartTime)
, mSize(aSize)
, mBuffer(aBuffer)
{
MOZ_COUNT_CTOR(Readback);
}
~Readback()
{
MOZ_COUNT_DTOR(Readback);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.UpdateAndRender(aWindowId, mStartTime, /* aRender */ true, Some(mSize), Some(mBuffer));
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
TimeStamp mStartTime;
gfx::IntSize mSize;
const Range<uint8_t>& mBuffer;
};
layers::SynchronousTask task("Readback");
auto event = MakeUnique<Readback>(&task, aStartTime, size, buffer);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this
// read-back event. Then, we could make sure this read-back event gets the
// latest result.
RunOnRenderThread(std::move(event));
task.Wait();
}
void
WebRenderAPI::ClearAllCaches()
{
wr_api_clear_all_caches(mDocHandle);
}
void
WebRenderAPI::Pause()
{
class PauseEvent : public RendererEvent
{
public:
explicit PauseEvent(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(PauseEvent);
}
~PauseEvent()
{
MOZ_COUNT_DTOR(PauseEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.Pause(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
};
layers::SynchronousTask task("Pause");
auto event = MakeUnique<PauseEvent>(&task);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(std::move(event));
task.Wait();
}
bool
WebRenderAPI::Resume()
{
class ResumeEvent : public RendererEvent
{
public:
explicit ResumeEvent(layers::SynchronousTask* aTask, bool* aResult)
: mTask(aTask)
, mResult(aResult)
{
MOZ_COUNT_CTOR(ResumeEvent);
}
~ResumeEvent()
{
MOZ_COUNT_DTOR(ResumeEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
*mResult = aRenderThread.Resume(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
bool* mResult;
};
bool result = false;
layers::SynchronousTask task("Resume");
auto event = MakeUnique<ResumeEvent>(&task, &result);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(std::move(event));
task.Wait();
return result;
}
void
WebRenderAPI::NotifyMemoryPressure()
{
wr_api_notify_memory_pressure(mDocHandle);
}
void
WebRenderAPI::AccumulateMemoryReport(MemoryReport* aReport)
{
wr_api_accumulate_memory_report(mDocHandle, aReport);
}
void
WebRenderAPI::WakeSceneBuilder()
{
wr_api_wake_scene_builder(mDocHandle);
}
void
WebRenderAPI::FlushSceneBuilder()
{
wr_api_flush_scene_builder(mDocHandle);
}
void
WebRenderAPI::WaitFlushed()
{
class WaitFlushedEvent : public RendererEvent
{
public:
explicit WaitFlushedEvent(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(WaitFlushedEvent);
}
~WaitFlushedEvent()
{
MOZ_COUNT_DTOR(WaitFlushedEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
};
layers::SynchronousTask task("WaitFlushed");
auto event = MakeUnique<WaitFlushedEvent>(&task);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(std::move(event));
task.Wait();
}
void
WebRenderAPI::Capture()
{
uint8_t bits = 3; //TODO: get from JavaScript
const char* path = "wr-capture"; //TODO: get from JavaScript
wr_api_capture(mDocHandle, path, bits);
}
void
TransactionBuilder::Clear()
{
wr_resource_updates_clear(mTxn);
}
void
TransactionBuilder::Notify(wr::Checkpoint aWhen, UniquePtr<NotificationHandler> aEvent) {
wr_transaction_notify(mTxn, aWhen, reinterpret_cast<uintptr_t>(aEvent.release()));
}
void
TransactionBuilder::AddImage(ImageKey key, const ImageDescriptor& aDescriptor,
wr::Vec<uint8_t>& aBytes)
{
wr_resource_updates_add_image(mTxn,
key,
&aDescriptor,
&aBytes.inner);
}
void
TransactionBuilder::AddBlobImage(ImageKey key, const ImageDescriptor& aDescriptor,
wr::Vec<uint8_t>& aBytes)
{
wr_resource_updates_add_blob_image(mTxn,
key,
&aDescriptor,
&aBytes.inner);
}
void
TransactionBuilder::AddExternalImage(ImageKey key,
const ImageDescriptor& aDescriptor,
ExternalImageId aExtID,
wr::WrExternalImageBufferType aBufferType,
uint8_t aChannelIndex)
{
wr_resource_updates_add_external_image(mTxn,
key,
&aDescriptor,
aExtID,
aBufferType,
aChannelIndex);
}
void
TransactionBuilder::AddExternalImageBuffer(ImageKey aKey,
const ImageDescriptor& aDescriptor,
ExternalImageId aHandle)
{
auto channelIndex = 0;
AddExternalImage(aKey, aDescriptor, aHandle,
wr::WrExternalImageBufferType::ExternalBuffer,
channelIndex);
}
void
TransactionBuilder::UpdateImageBuffer(ImageKey aKey,
const ImageDescriptor& aDescriptor,
wr::Vec<uint8_t>& aBytes)
{
wr_resource_updates_update_image(mTxn,
aKey,
&aDescriptor,
&aBytes.inner);
}
void
TransactionBuilder::UpdateBlobImage(ImageKey aKey,
const ImageDescriptor& aDescriptor,
wr::Vec<uint8_t>& aBytes,
const wr::DeviceUintRect& aDirtyRect)
{
wr_resource_updates_update_blob_image(mTxn,
aKey,
&aDescriptor,
&aBytes.inner,
aDirtyRect);
}
void
TransactionBuilder::UpdateExternalImage(ImageKey aKey,
const ImageDescriptor& aDescriptor,
ExternalImageId aExtID,
wr::WrExternalImageBufferType aBufferType,
uint8_t aChannelIndex)
{
wr_resource_updates_update_external_image(mTxn,
aKey,
&aDescriptor,
aExtID,
aBufferType,
aChannelIndex);
}
void
TransactionBuilder::UpdateExternalImageWithDirtyRect(ImageKey aKey,
const ImageDescriptor& aDescriptor,
ExternalImageId aExtID,
wr::WrExternalImageBufferType aBufferType,
const wr::DeviceUintRect& aDirtyRect,
uint8_t aChannelIndex)
{
wr_resource_updates_update_external_image_with_dirty_rect(mTxn,
aKey,
&aDescriptor,
aExtID,
aBufferType,
aChannelIndex,
aDirtyRect);
}
void
TransactionBuilder::SetImageVisibleArea(ImageKey aKey,
const wr::DeviceUintRect& aArea)
{
wr_resource_updates_set_image_visible_area(mTxn, aKey, &aArea);
}
void
TransactionBuilder::DeleteImage(ImageKey aKey)
{
wr_resource_updates_delete_image(mTxn, aKey);
}
void
TransactionBuilder::AddRawFont(wr::FontKey aKey, wr::Vec<uint8_t>& aBytes, uint32_t aIndex)
{
wr_resource_updates_add_raw_font(mTxn, aKey, &aBytes.inner, aIndex);
}
void
TransactionBuilder::AddFontDescriptor(wr::FontKey aKey, wr::Vec<uint8_t>& aBytes, uint32_t aIndex)
{
wr_resource_updates_add_font_descriptor(mTxn, aKey, &aBytes.inner, aIndex);
}
void
TransactionBuilder::DeleteFont(wr::FontKey aKey)
{
wr_resource_updates_delete_font(mTxn, aKey);
}
void
TransactionBuilder::AddFontInstance(wr::FontInstanceKey aKey,
wr::FontKey aFontKey,
float aGlyphSize,
const wr::FontInstanceOptions* aOptions,
const wr::FontInstancePlatformOptions* aPlatformOptions,
wr::Vec<uint8_t>& aVariations)
{
wr_resource_updates_add_font_instance(mTxn, aKey, aFontKey, aGlyphSize,
aOptions, aPlatformOptions,
&aVariations.inner);
}
void
TransactionBuilder::DeleteFontInstance(wr::FontInstanceKey aKey)
{
wr_resource_updates_delete_font_instance(mTxn, aKey);
}
class FrameStartTime : public RendererEvent
{
public:
explicit FrameStartTime(const TimeStamp& aTime)
: mTime(aTime)
{
MOZ_COUNT_CTOR(FrameStartTime);
}
~FrameStartTime()
{
MOZ_COUNT_DTOR(FrameStartTime);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
auto renderer = aRenderThread.GetRenderer(aWindowId);
if (renderer) {
renderer->SetFrameStartTime(mTime);
}
}
private:
TimeStamp mTime;
};
void
WebRenderAPI::SetFrameStartTime(const TimeStamp& aTime)
{
auto event = MakeUnique<FrameStartTime>(aTime);
RunOnRenderThread(std::move(event));
}
void
WebRenderAPI::RunOnRenderThread(UniquePtr<RendererEvent> aEvent)
{
auto event = reinterpret_cast<uintptr_t>(aEvent.release());
wr_api_send_external_event(mDocHandle, event);
}
DisplayListBuilder::DisplayListBuilder(PipelineId aId,
const wr::LayoutSize& aContentSize,
size_t aCapacity)
: mActiveFixedPosTracker(nullptr)
{
MOZ_COUNT_CTOR(DisplayListBuilder);
mWrState = wr_state_new(aId, aContentSize, aCapacity);
}
DisplayListBuilder::~DisplayListBuilder()
{
MOZ_COUNT_DTOR(DisplayListBuilder);
wr_state_delete(mWrState);
}
void DisplayListBuilder::Save() { wr_dp_save(mWrState); }
void DisplayListBuilder::Restore() { wr_dp_restore(mWrState); }
void DisplayListBuilder::ClearSave() { wr_dp_clear_save(mWrState); }
usize DisplayListBuilder::Dump(usize aIndent,
const Maybe<usize>& aStart,
const Maybe<usize>& aEnd)
{
return wr_dump_display_list(mWrState, aIndent, aStart.ptrOr(nullptr), aEnd.ptrOr(nullptr));
}
void
DisplayListBuilder::Finalize(wr::LayoutSize& aOutContentSize,
BuiltDisplayList& aOutDisplayList)
{
wr_api_finalize_builder(mWrState,
&aOutContentSize,
&aOutDisplayList.dl_desc,
&aOutDisplayList.dl.inner);
}
Maybe<wr::WrClipId>
DisplayListBuilder::PushStackingContext(const wr::LayoutRect& aBounds,
const wr::WrClipId* aClipNodeId,
const WrAnimationProperty* aAnimation,
const float* aOpacity,
const gfx::Matrix4x4* aTransform,
wr::TransformStyle aTransformStyle,
const gfx::Matrix4x4* aPerspective,
const wr::MixBlendMode& aMixBlendMode,
const nsTArray<wr::WrFilterOp>& aFilters,
bool aIsBackfaceVisible,
const wr::RasterSpace& aRasterSpace)
{
MOZ_ASSERT(mClipChainLeaf.isNothing(),
"Non-empty leaf from clip chain given, but not used with SC!");
wr::LayoutTransform matrix;
if (aTransform) {
matrix = ToLayoutTransform(*aTransform);
}
const wr::LayoutTransform* maybeTransform = aTransform ? &matrix : nullptr;
wr::LayoutTransform perspective;
if (aPerspective) {
perspective = ToLayoutTransform(*aPerspective);
}
const wr::LayoutTransform* maybePerspective = aPerspective ? &perspective : nullptr;
const size_t* maybeClipNodeId = aClipNodeId ? &aClipNodeId->id : nullptr;
WRDL_LOG("PushStackingContext b=%s t=%s\n", mWrState, Stringify(aBounds).c_str(),
aTransform ? Stringify(*aTransform).c_str() : "none");
bool outIsReferenceFrame = false;
uintptr_t outReferenceFrameId = 0;
wr_dp_push_stacking_context(mWrState, aBounds, maybeClipNodeId, aAnimation,
aOpacity, maybeTransform, aTransformStyle,
maybePerspective, aMixBlendMode,
aFilters.Elements(), aFilters.Length(),
aIsBackfaceVisible, aRasterSpace,
&outIsReferenceFrame, &outReferenceFrameId);
return outIsReferenceFrame ? Some(wr::WrClipId { outReferenceFrameId }) : Nothing();
}
void
DisplayListBuilder::PopStackingContext(bool aIsReferenceFrame)
{
WRDL_LOG("PopStackingContext\n", mWrState);
wr_dp_pop_stacking_context(mWrState, aIsReferenceFrame);
}
wr::WrClipChainId
DisplayListBuilder::DefineClipChain(const Maybe<wr::WrClipChainId>& aParent,
const nsTArray<wr::WrClipId>& aClips)
{
nsTArray<size_t> clipIds;
for (wr::WrClipId id : aClips) {
clipIds.AppendElement(id.id);
}
uint64_t clipchainId = wr_dp_define_clipchain(mWrState,
aParent ? &(aParent->id) : nullptr,
clipIds.Elements(), clipIds.Length());
WRDL_LOG("DefineClipChain id=%" PRIu64 " p=%s clips=%zu\n", mWrState,
clipchainId,
aParent ? Stringify(aParent->id).c_str() : "(nil)",
clipIds.Length());
return wr::WrClipChainId{ clipchainId };
}
wr::WrClipId
DisplayListBuilder::DefineClip(const Maybe<wr::WrClipId>& aParentId,
const wr::LayoutRect& aClipRect,
const nsTArray<wr::ComplexClipRegion>* aComplex,
const wr::WrImageMask* aMask)
{
size_t clip_id = wr_dp_define_clip(mWrState,
aParentId ? &(aParentId->id) : nullptr,
aClipRect,
aComplex ? aComplex->Elements() : nullptr,
aComplex ? aComplex->Length() : 0,
aMask);
WRDL_LOG("DefineClip id=%zu p=%s r=%s m=%p b=%s complex=%zu\n", mWrState,
clip_id, aParentId ? Stringify(aParentId->id).c_str() : "(nil)",
Stringify(aClipRect).c_str(), aMask,
aMask ? Stringify(aMask->rect).c_str() : "none",
aComplex ? aComplex->Length() : 0);
return wr::WrClipId { clip_id };
}
void
DisplayListBuilder::PushClip(const wr::WrClipId& aClipId)
{
WRDL_LOG("PushClip id=%zu\n", mWrState, aClipId.id);
wr_dp_push_clip(mWrState, aClipId.id);
}
void
DisplayListBuilder::PopClip()
{
WRDL_LOG("PopClip\n", mWrState);
wr_dp_pop_clip(mWrState);
}
wr::WrClipId
DisplayListBuilder::DefineStickyFrame(const wr::LayoutRect& aContentRect,
const float* aTopMargin,
const float* aRightMargin,
const float* aBottomMargin,
const float* aLeftMargin,
const StickyOffsetBounds& aVerticalBounds,
const StickyOffsetBounds& aHorizontalBounds,
const wr::LayoutVector2D& aAppliedOffset)
{
size_t id = wr_dp_define_sticky_frame(mWrState, aContentRect, aTopMargin,
aRightMargin, aBottomMargin, aLeftMargin, aVerticalBounds, aHorizontalBounds,
aAppliedOffset);
WRDL_LOG("DefineSticky id=%zu c=%s t=%s r=%s b=%s l=%s v=%s h=%s a=%s\n",
mWrState, id,
Stringify(aContentRect).c_str(),
aTopMargin ? Stringify(*aTopMargin).c_str() : "none",
aRightMargin ? Stringify(*aRightMargin).c_str() : "none",
aBottomMargin ? Stringify(*aBottomMargin).c_str() : "none",
aLeftMargin ? Stringify(*aLeftMargin).c_str() : "none",
Stringify(aVerticalBounds).c_str(),
Stringify(aHorizontalBounds).c_str(),
Stringify(aAppliedOffset).c_str());
return wr::WrClipId { id };
}
Maybe<wr::WrClipId>
DisplayListBuilder::GetScrollIdForDefinedScrollLayer(layers::FrameMetrics::ViewID aViewId) const
{
if (aViewId == layers::FrameMetrics::NULL_SCROLL_ID) {
return Some(wr::WrClipId::RootScrollNode());
}
auto it = mScrollIds.find(aViewId);
if (it == mScrollIds.end()) {
return Nothing();
}
return Some(it->second);
}
wr::WrClipId
DisplayListBuilder::DefineScrollLayer(const layers::FrameMetrics::ViewID& aViewId,
const Maybe<wr::WrClipId>& aParentId,
const wr::LayoutRect& aContentRect,
const wr::LayoutRect& aClipRect)
{
auto it = mScrollIds.find(aViewId);
if (it != mScrollIds.end()) {
return it->second;
}
// We haven't defined aViewId before, so let's define it now.
size_t numericScrollId = wr_dp_define_scroll_layer(
mWrState,
aViewId,
aParentId ? &(aParentId->id) : nullptr,
aContentRect,
aClipRect);
WRDL_LOG("DefineScrollLayer id=%" PRIu64 "/%zu p=%s co=%s cl=%s\n", mWrState,
aViewId, numericScrollId,
aParentId ? Stringify(aParentId->id).c_str() : "(nil)",
Stringify(aContentRect).c_str(), Stringify(aClipRect).c_str());