gecko-dev/gfx/webrender_bindings/RenderCompositorANGLE.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 "RenderCompositorANGLE.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#include "GLContextProvider.h"
#include "mozilla/gfx/DeviceManagerDx.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/layers/HelpersD3D11.h"
#include "mozilla/layers/SyncObject.h"
#include "mozilla/StaticPrefs_gfx.h"
#include "mozilla/webrender/DCLayerTree.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/widget/CompositorWidget.h"
#include "mozilla/widget/WinCompositorWidget.h"
#include "mozilla/WindowsVersion.h"
#include "FxROutputHandler.h"
#undef NTDDI_VERSION
#define NTDDI_VERSION NTDDI_WIN8
#include <d3d11.h>
#include <dcomp.h>
#include <dxgi1_2.h>
namespace mozilla {
namespace wr {
/* static */
UniquePtr<RenderCompositor> RenderCompositorANGLE::Create(
RefPtr<widget::CompositorWidget>&& aWidget) {
const auto& gl = RenderThread::Get()->SharedGL();
if (!gl) {
gfxCriticalNote << "Failed to get shared GL context";
return nullptr;
}
UniquePtr<RenderCompositorANGLE> compositor =
MakeUnique<RenderCompositorANGLE>(std::move(aWidget));
if (!compositor->Initialize()) {
return nullptr;
}
return compositor;
}
RenderCompositorANGLE::RenderCompositorANGLE(
RefPtr<widget::CompositorWidget>&& aWidget)
: RenderCompositor(std::move(aWidget)),
mEGLConfig(nullptr),
mEGLSurface(nullptr),
mUseTripleBuffering(false),
mUseAlpha(false) {}
RenderCompositorANGLE::~RenderCompositorANGLE() {
DestroyEGLSurface();
MOZ_ASSERT(!mEGLSurface);
}
ID3D11Device* RenderCompositorANGLE::GetDeviceOfEGLDisplay() {
auto* egl = gl::GLLibraryEGL::Get();
MOZ_ASSERT(egl);
if (!egl || !egl->IsExtensionSupported(gl::GLLibraryEGL::EXT_device_query)) {
return nullptr;
}
// Fetch the D3D11 device.
EGLDeviceEXT eglDevice = nullptr;
egl->fQueryDisplayAttribEXT(egl->Display(), LOCAL_EGL_DEVICE_EXT,
(EGLAttrib*)&eglDevice);
MOZ_ASSERT(eglDevice);
ID3D11Device* device = nullptr;
egl->fQueryDeviceAttribEXT(eglDevice, LOCAL_EGL_D3D11_DEVICE_ANGLE,
(EGLAttrib*)&device);
if (!device) {
gfxCriticalNote << "Failed to get D3D11Device from EGLDisplay";
return nullptr;
}
return device;
}
bool RenderCompositorANGLE::SutdownEGLLibraryIfNecessary() {
const RefPtr<gl::GLLibraryEGL> egl = gl::GLLibraryEGL::Get();
if (!egl) {
// egl is not initialized yet;
return true;
}
RefPtr<ID3D11Device> device =
gfx::DeviceManagerDx::Get()->GetCompositorDevice();
// When DeviceReset is handled by GPUProcessManager/GPUParent,
// CompositorDevice is updated to a new device. EGLDisplay also needs to be
// updated, since EGLDisplay uses DeviceManagerDx::mCompositorDevice on ANGLE
// WebRender use case. EGLDisplay could be updated when Renderer count becomes
// 0. It is ensured by GPUProcessManager during handling DeviceReset.
// GPUChild::RecvNotifyDeviceReset() destroys all CompositorSessions before
// re-creating them.
if (device.get() != GetDeviceOfEGLDisplay() &&
RenderThread::Get()->RendererCount() == 0) {
// Shutdown GLLibraryEGL for updating EGLDisplay.
RenderThread::Get()->ClearSharedGL();
egl->Shutdown();
}
return true;
}
bool RenderCompositorANGLE::Initialize() {
if (RenderThread::Get()->IsHandlingDeviceReset()) {
gfxCriticalNote << "Waiting for handling device reset";
return false;
}
// Update device if necessary.
if (!SutdownEGLLibraryIfNecessary()) {
return false;
}
const auto gl = RenderThread::Get()->SharedGL();
if (!gl) {
gfxCriticalNote << "[WR] failed to get shared GL context.";
return false;
}
// Force enable alpha channel to make sure ANGLE use correct framebuffer
// formart
const auto& gle = gl::GLContextEGL::Cast(gl);
const auto& egl = gle->mEgl;
if (!gl::CreateConfig(egl, &mEGLConfig, /* bpp */ 32,
/* enableDepthBuffer */ true)) {
gfxCriticalNote << "Failed to create EGLConfig for WebRender";
}
MOZ_ASSERT(mEGLConfig);
mDevice = GetDeviceOfEGLDisplay();
if (!mDevice) {
gfxCriticalNote << "[WR] failed to get compositor device.";
return false;
}
mDevice->GetImmediateContext(getter_AddRefs(mCtx));
if (!mCtx) {
gfxCriticalNote << "[WR] failed to get immediate context.";
return false;
}
HWND hwnd = mWidget->AsWindows()->GetHwnd();
RefPtr<IDXGIDevice> dxgiDevice;
mDevice->QueryInterface((IDXGIDevice**)getter_AddRefs(dxgiDevice));
RefPtr<IDXGIFactory> dxgiFactory;
{
RefPtr<IDXGIAdapter> adapter;
dxgiDevice->GetAdapter(getter_AddRefs(adapter));
adapter->GetParent(
IID_PPV_ARGS((IDXGIFactory**)getter_AddRefs(dxgiFactory)));
}
RefPtr<IDXGIFactory2> dxgiFactory2;
HRESULT hr = dxgiFactory->QueryInterface(
(IDXGIFactory2**)getter_AddRefs(dxgiFactory2));
if (FAILED(hr)) {
dxgiFactory2 = nullptr;
}
CreateSwapChainForDCompIfPossible(dxgiFactory2);
if (!mSwapChain && dxgiFactory2 && IsWin8OrLater()) {
RefPtr<IDXGISwapChain1> swapChain1;
bool useTripleBuffering = false;
DXGI_SWAP_CHAIN_DESC1 desc{};
desc.Width = 0;
desc.Height = 0;
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
// DXGI_USAGE_SHADER_INPUT is set for improving performanc of copying from
// framebuffer to texture on intel gpu.
desc.BufferUsage =
DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT;
if (gfx::gfxVars::UseWebRenderFlipSequentialWin()) {
useTripleBuffering = gfx::gfxVars::UseWebRenderTripleBufferingWin();
if (useTripleBuffering) {
desc.BufferCount = 3;
} else {
desc.BufferCount = 2;
}
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
} else {
desc.BufferCount = 1;
desc.SwapEffect = DXGI_SWAP_EFFECT_SEQUENTIAL;
}
desc.Scaling = DXGI_SCALING_NONE;
desc.Flags = 0;
hr = dxgiFactory2->CreateSwapChainForHwnd(
mDevice, hwnd, &desc, nullptr, nullptr, getter_AddRefs(swapChain1));
if (SUCCEEDED(hr) && swapChain1) {
DXGI_RGBA color = {1.0f, 1.0f, 1.0f, 1.0f};
swapChain1->SetBackgroundColor(&color);
mSwapChain = swapChain1;
mUseTripleBuffering = useTripleBuffering;
}
}
if (!mSwapChain) {
DXGI_SWAP_CHAIN_DESC swapDesc{};
swapDesc.BufferDesc.Width = 0;
swapDesc.BufferDesc.Height = 0;
swapDesc.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
swapDesc.BufferDesc.RefreshRate.Numerator = 60;
swapDesc.BufferDesc.RefreshRate.Denominator = 1;
swapDesc.SampleDesc.Count = 1;
swapDesc.SampleDesc.Quality = 0;
// DXGI_USAGE_SHADER_INPUT is set for improving performanc of copying from
// framebuffer to texture on intel gpu.
swapDesc.BufferUsage =
DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT;
swapDesc.BufferCount = 1;
swapDesc.OutputWindow = hwnd;
swapDesc.Windowed = TRUE;
swapDesc.Flags = 0;
swapDesc.SwapEffect = DXGI_SWAP_EFFECT_SEQUENTIAL;
HRESULT hr = dxgiFactory->CreateSwapChain(dxgiDevice, &swapDesc,
getter_AddRefs(mSwapChain));
if (FAILED(hr)) {
gfxCriticalNote << "Could not create swap chain: " << gfx::hexa(hr);
return false;
}
}
// We need this because we don't want DXGI to respond to Alt+Enter.
dxgiFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_WINDOW_CHANGES);
mSyncObject = layers::SyncObjectHost::CreateSyncObjectHost(mDevice);
if (!mSyncObject->Init()) {
// Some errors occur. Clear the mSyncObject here.
// Then, there will be no texture synchronization.
return false;
}
if (!UseCompositor()) {
if (!ResizeBufferIfNeeded()) {
return false;
}
}
return true;
}
void RenderCompositorANGLE::CreateSwapChainForDCompIfPossible(
IDXGIFactory2* aDXGIFactory2) {
if (!aDXGIFactory2) {
return;
}
HWND hwnd = mWidget->AsWindows()->GetCompositorHwnd();
if (!hwnd) {
gfxCriticalNote << "Compositor window was not created ";
return;
}
mDCLayerTree = DCLayerTree::Create(gl(), mEGLConfig, mDevice, hwnd);
if (!mDCLayerTree) {
return;
}
MOZ_ASSERT(XRE_IsGPUProcess());
// When compositor is enabled, CompositionSurface is used for rendering.
// It does not support triple buffering.
bool useTripleBuffering =
gfx::gfxVars::UseWebRenderTripleBufferingWin() && !UseCompositor();
// Non Glass window is common since Windows 10.
bool useAlpha = false;
RefPtr<IDXGISwapChain1> swapChain1 =
CreateSwapChainForDComp(useTripleBuffering, useAlpha);
if (swapChain1) {
mSwapChain = swapChain1;
mUseTripleBuffering = useTripleBuffering;
mUseAlpha = useAlpha;
mDCLayerTree->SetDefaultSwapChain(swapChain1);
} else {
// Clear CLayerTree on falire
mDCLayerTree = nullptr;
}
}
RefPtr<IDXGISwapChain1> RenderCompositorANGLE::CreateSwapChainForDComp(
bool aUseTripleBuffering, bool aUseAlpha) {
HRESULT hr;
RefPtr<IDXGIDevice> dxgiDevice;
mDevice->QueryInterface((IDXGIDevice**)getter_AddRefs(dxgiDevice));
RefPtr<IDXGIFactory> dxgiFactory;
{
RefPtr<IDXGIAdapter> adapter;
dxgiDevice->GetAdapter(getter_AddRefs(adapter));
adapter->GetParent(
IID_PPV_ARGS((IDXGIFactory**)getter_AddRefs(dxgiFactory)));
}
RefPtr<IDXGIFactory2> dxgiFactory2;
hr = dxgiFactory->QueryInterface(
(IDXGIFactory2**)getter_AddRefs(dxgiFactory2));
if (FAILED(hr)) {
return nullptr;
}
RefPtr<IDXGISwapChain1> swapChain1;
DXGI_SWAP_CHAIN_DESC1 desc{};
// DXGI does not like 0x0 swapchains. Swap chain creation failed when 0x0 was
// set.
desc.Width = 1;
desc.Height = 1;
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
// DXGI_USAGE_SHADER_INPUT is set for improving performanc of copying from
// framebuffer to texture on intel gpu.
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT;
if (aUseTripleBuffering) {
desc.BufferCount = 3;
} else {
desc.BufferCount = 2;
}
// DXGI_SCALING_NONE caused swap chain creation failure.
desc.Scaling = DXGI_SCALING_STRETCH;
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
if (aUseAlpha) {
// This could degrade performance. Use it only when it is necessary.
desc.AlphaMode = DXGI_ALPHA_MODE_PREMULTIPLIED;
} else {
desc.AlphaMode = DXGI_ALPHA_MODE_IGNORE;
}
desc.Flags = 0;
hr = dxgiFactory2->CreateSwapChainForComposition(mDevice, &desc, nullptr,
getter_AddRefs(swapChain1));
if (SUCCEEDED(hr) && swapChain1) {
DXGI_RGBA color = {1.0f, 1.0f, 1.0f, 1.0f};
swapChain1->SetBackgroundColor(&color);
return swapChain1;
}
return nullptr;
}
bool RenderCompositorANGLE::BeginFrame() {
mWidget->AsWindows()->UpdateCompositorWndSizeIfNecessary();
if (!UseCompositor()) {
if (mDCLayerTree) {
bool useAlpha = mWidget->AsWindows()->HasGlass();
// When Alpha usage is changed, SwapChain needs to be recreatd.
if (useAlpha != mUseAlpha) {
DestroyEGLSurface();
mBufferSize.reset();
RefPtr<IDXGISwapChain1> swapChain1 =
CreateSwapChainForDComp(mUseTripleBuffering, useAlpha);
if (swapChain1) {
mSwapChain = swapChain1;
mUseAlpha = useAlpha;
mDCLayerTree->SetDefaultSwapChain(swapChain1);
} else {
gfxCriticalNote << "Failed to re-create SwapChain";
RenderThread::Get()->HandleWebRenderError(
WebRenderError::NEW_SURFACE);
return false;
}
}
}
if (!ResizeBufferIfNeeded()) {
return false;
}
}
if (!MakeCurrent()) {
gfxCriticalNote << "Failed to make render context current, can't draw.";
return false;
}
if (mSyncObject) {
if (!mSyncObject->Synchronize(/* aFallible */ true)) {
// It's timeout or other error. Handle the device-reset here.
RenderThread::Get()->HandleDeviceReset("SyncObject", /* aNotify */ true);
return false;
}
}
return true;
}
void RenderCompositorANGLE::EndFrame() {
InsertPresentWaitQuery();
if (!UseCompositor()) {
if (mWidget->AsWindows()->HasFxrOutputHandler()) {
// There is a Firefox Reality handler for this swapchain. Update this
// window's contents to the VR window.
FxROutputHandler* fxrHandler =
mWidget->AsWindows()->GetFxrOutputHandler();
if (fxrHandler->TryInitialize(mSwapChain, mDevice)) {
fxrHandler->UpdateOutput(mCtx);
}
}
mSwapChain->Present(0, 0);
}
if (mDCLayerTree) {
mDCLayerTree->MaybeUpdateDebug();
}
}
bool RenderCompositorANGLE::WaitForGPU() {
// Note: this waits on the query we inserted in the previous frame,
// not the one we just inserted now. Example:
// Insert query #1
// Present #1
// (first frame, no wait)
// Insert query #2
// Present #2
// Wait for query #1.
// Insert query #3
// Present #3
// Wait for query #2.
//
// This ensures we're done reading textures before swapping buffers.
return WaitForPreviousPresentQuery();
}
bool RenderCompositorANGLE::ResizeBufferIfNeeded() {
MOZ_ASSERT(mSwapChain);
LayoutDeviceIntSize size = mWidget->GetClientSize();
// DXGI does not like 0x0 swapchains. ResizeBuffers() failed when 0x0 was set
// when DComp is used.
size.width = std::max(size.width, 1);
size.height = std::max(size.height, 1);
if (mBufferSize.isSome() && mBufferSize.ref() == size) {
MOZ_ASSERT(mEGLSurface);
return true;
}
// Release EGLSurface of back buffer before calling ResizeBuffers().
DestroyEGLSurface();
mBufferSize = Some(size);
if (!CreateEGLSurface()) {
mBufferSize.reset();
return false;
}
return true;
}
bool RenderCompositorANGLE::CreateEGLSurface() {
MOZ_ASSERT(mBufferSize.isSome());
MOZ_ASSERT(mEGLSurface == EGL_NO_SURFACE);
HRESULT hr;
RefPtr<ID3D11Texture2D> backBuf;
if (mBufferSize.isNothing()) {
gfxCriticalNote << "Buffer size is invalid";
return false;
}
const LayoutDeviceIntSize& size = mBufferSize.ref();
// Resize swap chain
DXGI_SWAP_CHAIN_DESC desc;
hr = mSwapChain->GetDesc(&desc);
if (FAILED(hr)) {
gfxCriticalNote << "Failed to read swap chain description: "
<< gfx::hexa(hr) << " Size : " << size;
return false;
}
hr = mSwapChain->ResizeBuffers(desc.BufferCount, size.width, size.height,
DXGI_FORMAT_B8G8R8A8_UNORM, 0);
if (FAILED(hr)) {
gfxCriticalNote << "Failed to resize swap chain buffers: " << gfx::hexa(hr)
<< " Size : " << size;
return false;
}
hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D),
(void**)getter_AddRefs(backBuf));
if (hr == DXGI_ERROR_INVALID_CALL) {
// This happens on some GPUs/drivers when there's a TDR.
if (mDevice->GetDeviceRemovedReason() != S_OK) {
gfxCriticalError() << "GetBuffer returned invalid call: " << gfx::hexa(hr)
<< " Size : " << size;
return false;
}
}
const EGLint pbuffer_attribs[]{
LOCAL_EGL_WIDTH,
size.width,
LOCAL_EGL_HEIGHT,
size.height,
LOCAL_EGL_FLEXIBLE_SURFACE_COMPATIBILITY_SUPPORTED_ANGLE,
LOCAL_EGL_TRUE,
LOCAL_EGL_NONE};
const auto buffer = reinterpret_cast<EGLClientBuffer>(backBuf.get());
const auto gl = RenderThread::Get()->SharedGL();
const auto& gle = gl::GLContextEGL::Cast(gl);
const auto& egl = gle->mEgl;
const EGLSurface surface = egl->fCreatePbufferFromClientBuffer(
egl->Display(), LOCAL_EGL_D3D_TEXTURE_ANGLE, buffer, mEGLConfig,
pbuffer_attribs);
EGLint err = egl->fGetError();
if (err != LOCAL_EGL_SUCCESS) {
gfxCriticalError() << "Failed to create Pbuffer of back buffer error: "
<< gfx::hexa(err) << " Size : " << size;
return false;
}
mEGLSurface = surface;
return true;
}
void RenderCompositorANGLE::DestroyEGLSurface() {
// Release EGLSurface of back buffer before calling ResizeBuffers().
if (mEGLSurface) {
const auto& gle = gl::GLContextEGL::Cast(gl());
const auto& egl = gle->mEgl;
gle->SetEGLSurfaceOverride(EGL_NO_SURFACE);
egl->fDestroySurface(egl->Display(), mEGLSurface);
mEGLSurface = nullptr;
}
}
void RenderCompositorANGLE::Pause() {}
bool RenderCompositorANGLE::Resume() { return true; }
bool RenderCompositorANGLE::MakeCurrent() {
gl::GLContextEGL::Cast(gl())->SetEGLSurfaceOverride(mEGLSurface);
return gl()->MakeCurrent();
}
LayoutDeviceIntSize RenderCompositorANGLE::GetBufferSize() {
if (!UseCompositor()) {
MOZ_ASSERT(mBufferSize.isSome());
if (mBufferSize.isNothing()) {
return LayoutDeviceIntSize();
}
return mBufferSize.ref();
} else {
return mWidget->GetClientSize();
}
}
RefPtr<ID3D11Query> RenderCompositorANGLE::GetD3D11Query() {
RefPtr<ID3D11Query> query;
if (mRecycledQuery) {
query = mRecycledQuery.forget();
return query;
}
CD3D11_QUERY_DESC desc(D3D11_QUERY_EVENT);
HRESULT hr = mDevice->CreateQuery(&desc, getter_AddRefs(query));
if (FAILED(hr) || !query) {
gfxWarning() << "Could not create D3D11_QUERY_EVENT: " << gfx::hexa(hr);
return nullptr;
}
return query;
}
void RenderCompositorANGLE::InsertPresentWaitQuery() {
RefPtr<ID3D11Query> query;
query = GetD3D11Query();
if (!query) {
return;
}
mCtx->End(query);
mWaitForPresentQueries.emplace(query);
}
bool RenderCompositorANGLE::WaitForPreviousPresentQuery() {
size_t waitLatency = mUseTripleBuffering ? 3 : 2;
while (mWaitForPresentQueries.size() >= waitLatency) {
RefPtr<ID3D11Query>& query = mWaitForPresentQueries.front();
BOOL result;
bool ret = layers::WaitForFrameGPUQuery(mDevice, mCtx, query, &result);
// Recycle query for later use.
mRecycledQuery = query;
mWaitForPresentQueries.pop();
if (!ret) {
return false;
}
}
return true;
}
bool RenderCompositorANGLE::IsContextLost() {
// XXX glGetGraphicsResetStatus sometimes did not work for detecting TDR.
// Then this function just uses GetDeviceRemovedReason().
if (mDevice->GetDeviceRemovedReason() != S_OK) {
return true;
}
return false;
}
bool RenderCompositorANGLE::UseCompositor() {
if (!mDCLayerTree || !StaticPrefs::gfx_webrender_compositor_AtStartup()) {
return false;
}
return true;
}
bool RenderCompositorANGLE::ShouldUseNativeCompositor() {
return UseCompositor();
}
void RenderCompositorANGLE::CompositorBeginFrame() {
mDCLayerTree->CompositorBeginFrame();
}
void RenderCompositorANGLE::CompositorEndFrame() {
mDCLayerTree->CompositorEndFrame();
}
void RenderCompositorANGLE::Bind(wr::NativeSurfaceId aId,
wr::DeviceIntPoint* aOffset, uint32_t* aFboId,
wr::DeviceIntRect aDirtyRect) {
mDCLayerTree->Bind(aId, aOffset, aFboId, aDirtyRect);
}
void RenderCompositorANGLE::Unbind() { mDCLayerTree->Unbind(); }
void RenderCompositorANGLE::CreateSurface(wr::NativeSurfaceId aId,
wr::DeviceIntSize aSize,
bool aIsOpaque) {
mDCLayerTree->CreateSurface(aId, aSize, aIsOpaque);
}
void RenderCompositorANGLE::DestroySurface(NativeSurfaceId aId) {
mDCLayerTree->DestroySurface(aId);
}
void RenderCompositorANGLE::AddSurface(wr::NativeSurfaceId aId,
wr::DeviceIntPoint aPosition,
wr::DeviceIntRect aClipRect) {
mDCLayerTree->AddSurface(aId, aPosition, aClipRect);
}
} // namespace wr
} // namespace mozilla