Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
#include "DcompSurfaceImage.h"
#include "mozilla/ipc/FileDescriptor.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/LayersSurfaces.h"
#include "mozilla/layers/TextureForwarder.h"
#include "mozilla/layers/KnowsCompositor.h"
#include "mozilla/webrender/RenderDcompSurfaceTextureHost.h"
#include "mozilla/webrender/WebRenderAPI.h"
extern mozilla::LazyLogModule gDcompSurface;
#define LOG(...) MOZ_LOG(gDcompSurface, LogLevel::Debug, (__VA_ARGS__))
namespace mozilla::layers {
already_AddRefed<TextureHost> CreateTextureHostDcompSurface(
const SurfaceDescriptor& aDesc, ISurfaceAllocator* aDeallocator,
LayersBackend aBackend, TextureFlags aFlags) {
MOZ_ASSERT(aDesc.type() == SurfaceDescriptor::TSurfaceDescriptorDcompSurface);
RefPtr<TextureHost> result = new DcompSurfaceHandleHost(
aFlags, aDesc.get_SurfaceDescriptorDcompSurface());
return result.forget();
}
/* static */
already_AddRefed<TextureClient> DcompSurfaceTexture::CreateTextureClient(
HANDLE aHandle, gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
KnowsCompositor* aKnowsCompositor) {
RefPtr<TextureClient> textureClient = MakeAndAddRef<TextureClient>(
new DcompSurfaceTexture(aHandle, aSize, aFormat), TextureFlags::NO_FLAGS,
aKnowsCompositor->GetTextureForwarder());
return textureClient.forget();
}
DcompSurfaceTexture::~DcompSurfaceTexture() {
LOG("Destroy DcompSurfaceTexture %p, close handle=%p", this, mHandle);
CloseHandle(mHandle);
}
bool DcompSurfaceTexture::Serialize(SurfaceDescriptor& aOutDescriptor) {
aOutDescriptor = SurfaceDescriptorDcompSurface(ipc::FileDescriptor(mHandle),
mSize, mFormat);
return true;
}
void DcompSurfaceTexture::GetSubDescriptor(
RemoteDecoderVideoSubDescriptor* aOutDesc) {
*aOutDesc = SurfaceDescriptorDcompSurface(ipc::FileDescriptor(mHandle), mSize,
mFormat);
}
DcompSurfaceImage::DcompSurfaceImage(HANDLE aHandle, gfx::IntSize aSize,
gfx::SurfaceFormat aFormat,
KnowsCompositor* aKnowsCompositor)
: Image(nullptr, ImageFormat::DCOMP_SURFACE),
mTextureClient(DcompSurfaceTexture::CreateTextureClient(
aHandle, aSize, aFormat, aKnowsCompositor)) {
// Dcomp surface supports DXGI_FORMAT_B8G8R8A8_UNORM,
// DXGI_FORMAT_R8G8B8A8_UNORM and DXGI_FORMAT_R16G16B16A16_FLOAT
MOZ_ASSERT(aFormat == gfx::SurfaceFormat::B8G8R8A8 ||
aFormat == gfx::SurfaceFormat::R8G8B8A8);
}
TextureClient* DcompSurfaceImage::GetTextureClient(
KnowsCompositor* aKnowsCompositor) {
return mTextureClient;
}
DcompSurfaceHandleHost::DcompSurfaceHandleHost(
TextureFlags aFlags, const SurfaceDescriptorDcompSurface& aDescriptor)
: TextureHost(TextureHostType::DcompSurface, aFlags),
mHandle(const_cast<ipc::FileDescriptor&>(aDescriptor.handle())
.TakePlatformHandle()),
mSize(aDescriptor.size()),
mFormat(aDescriptor.format()) {
LOG("Create DcompSurfaceHandleHost %p", this);
}
DcompSurfaceHandleHost::~DcompSurfaceHandleHost() {
LOG("Destroy DcompSurfaceHandleHost %p", this);
}
void DcompSurfaceHandleHost::CreateRenderTexture(
const wr::ExternalImageId& aExternalImageId) {
MOZ_ASSERT(mExternalImageId.isSome());
LOG("DcompSurfaceHandleHost %p CreateRenderTexture, ext-id=%" PRIu64, this,
wr::AsUint64(aExternalImageId));
RefPtr<wr::RenderTextureHost> texture =
new wr::RenderDcompSurfaceTextureHost(mHandle.get(), mSize, mFormat);
wr::RenderThread::Get()->RegisterExternalImage(aExternalImageId,
texture.forget());
}
void DcompSurfaceHandleHost::PushResourceUpdates(
wr::TransactionBuilder& aResources, ResourceUpdateOp aOp,
const Range<wr::ImageKey>& aImageKeys,
const wr::ExternalImageId& aExternalImageId) {
if (!gfx::gfxVars::UseWebRenderANGLE()) {
MOZ_ASSERT_UNREACHABLE("Unexpected to be called without ANGLE");
return;
}
MOZ_ASSERT(mHandle);
MOZ_ASSERT(aImageKeys.length() == 1);
auto method = aOp == TextureHost::ADD_IMAGE
? &wr::TransactionBuilder::AddExternalImage
: &wr::TransactionBuilder::UpdateExternalImage;
wr::ImageDescriptor descriptor(mSize, GetFormat());
// Prefer TextureExternal unless the backend requires TextureRect.
TextureHost::NativeTexturePolicy policy =
TextureHost::BackendNativeTexturePolicy(aResources.GetBackendType(),
mSize);
auto imageType = policy == TextureHost::NativeTexturePolicy::REQUIRE
? wr::ExternalImageType::TextureHandle(
wr::ImageBufferKind::TextureRect)
: wr::ExternalImageType::TextureHandle(
wr::ImageBufferKind::TextureExternal);
LOG("DcompSurfaceHandleHost %p PushResourceUpdate, exi-id=%" PRIu64
", type=%s",
this, wr::AsUint64(aExternalImageId),
policy == TextureHost::NativeTexturePolicy::REQUIRE ? "rect" : "ext");
(aResources.*method)(aImageKeys[0], descriptor, aExternalImageId, imageType,
0);
}
void DcompSurfaceHandleHost::PushDisplayItems(
wr::DisplayListBuilder& aBuilder, const wr::LayoutRect& aBounds,
const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
const Range<wr::ImageKey>& aImageKeys, PushDisplayItemFlagSet aFlags) {
if (!gfx::gfxVars::UseWebRenderANGLE()) {
MOZ_ASSERT_UNREACHABLE("Unexpected to be called without ANGLE");
return;
}
LOG("DcompSurfaceHandleHost %p PushDisplayItems", this);
MOZ_ASSERT(aImageKeys.length() == 1);
aBuilder.PushImage(
aBounds, aClip, true, false, aFilter, aImageKeys[0],
!(mFlags & TextureFlags::NON_PREMULTIPLIED),
wr::ColorF{1.0f, 1.0f, 1.0f, 1.0f},
aFlags.contains(PushDisplayItemFlag::PREFER_COMPOSITOR_SURFACE),
SupportsExternalCompositing(aBuilder.GetBackendType()));
}
} // namespace mozilla::layers
#undef LOG