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/* -*- Mode: C++; tab-width: 4; 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/WebGPUBinding.h"
#include "Adapter.h"
#include "Device.h"
#include "Instance.h"
#include "SupportedFeatures.h"
#include "SupportedLimits.h"
#include "ipc/WebGPUChild.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/webgpu/ffi/wgpu.h"
namespace mozilla::webgpu {
bool AdapterInfo::WrapObject(JSContext* const cx,
JS::Handle<JSObject*> givenProto,
JS::MutableHandle<JSObject*> reflector) {
return dom::GPUAdapterInfo_Binding::Wrap(cx, this, givenProto, reflector);
}
void AdapterInfo::GetWgpuName(nsString& s) const {
s = mAboutSupportInfo->name;
}
uint32_t AdapterInfo::WgpuVendor() const { return mAboutSupportInfo->vendor; }
uint32_t AdapterInfo::WgpuDevice() const { return mAboutSupportInfo->device; }
void AdapterInfo::GetWgpuDeviceType(nsString& s) const {
switch (mAboutSupportInfo->device_type) {
case ffi::WGPUDeviceType_Cpu:
s.AssignLiteral("Cpu");
return;
case ffi::WGPUDeviceType_DiscreteGpu:
s.AssignLiteral("DiscreteGpu");
return;
case ffi::WGPUDeviceType_IntegratedGpu:
s.AssignLiteral("IntegratedGpu");
return;
case ffi::WGPUDeviceType_VirtualGpu:
s.AssignLiteral("VirtualGpu");
return;
case ffi::WGPUDeviceType_Other:
s.AssignLiteral("Other");
return;
case ffi::WGPUDeviceType_Sentinel:
break;
}
MOZ_CRASH("Bad `ffi::WGPUDeviceType`");
}
void AdapterInfo::GetWgpuDriver(nsString& s) const {
s = mAboutSupportInfo->driver;
}
void AdapterInfo::GetWgpuDriverInfo(nsString& s) const {
s = mAboutSupportInfo->driver_info;
}
void AdapterInfo::GetWgpuBackend(nsString& s) const {
switch (mAboutSupportInfo->backend) {
case ffi::WGPUBackend_Empty:
s.AssignLiteral("Empty");
return;
case ffi::WGPUBackend_Vulkan:
s.AssignLiteral("Vulkan");
return;
case ffi::WGPUBackend_Metal:
s.AssignLiteral("Metal");
return;
case ffi::WGPUBackend_Dx12:
s.AssignLiteral("Dx12");
return;
case ffi::WGPUBackend_Dx11:
s.AssignLiteral("Dx11");
return;
case ffi::WGPUBackend_Gl:
s.AssignLiteral("Gl");
return;
case ffi::WGPUBackend_BrowserWebGpu: // This should never happen, because
// we _are_ the browser.
case ffi::WGPUBackend_Sentinel:
break;
}
MOZ_CRASH("Bad `ffi::WGPUBackend`");
}
// -
GPU_IMPL_CYCLE_COLLECTION(Adapter, mParent, mBridge, mFeatures, mLimits)
GPU_IMPL_JS_WRAP(Adapter)
Maybe<uint32_t> Adapter::MakeFeatureBits(
const dom::Sequence<dom::GPUFeatureName>& aFeatures) {
uint32_t bits = 0;
for (const auto& feature : aFeatures) {
if (feature == dom::GPUFeatureName::Depth_clip_control) {
bits |= WGPUFeatures_DEPTH_CLIP_CONTROL;
} else if (feature == dom::GPUFeatureName::Texture_compression_bc) {
bits |= WGPUFeatures_TEXTURE_COMPRESSION_BC;
} else if (feature == dom::GPUFeatureName::Indirect_first_instance) {
bits |= WGPUFeatures_INDIRECT_FIRST_INSTANCE;
} else if (feature == dom::GPUFeatureName::Depth32float_stencil8) {
bits |= WGPUFeatures_DEPTH32FLOAT_STENCIL8;
} else {
NS_WARNING(
nsPrintfCString("Requested feature bit '%d' is not recognized.",
static_cast<int>(feature))
.get());
return Nothing();
}
}
return Some(bits);
}
Adapter::Adapter(Instance* const aParent, WebGPUChild* const aBridge,
const std::shared_ptr<ffi::WGPUAdapterInformation>& aInfo)
: ChildOf(aParent),
mBridge(aBridge),
mId(aInfo->id),
mFeatures(new SupportedFeatures(this)),
mLimits(new SupportedLimits(this,
MakeUnique<ffi::WGPULimits>(aInfo->limits))),
mInfo(aInfo) {
ErrorResult result; // TODO: should this come from outside
// This list needs to match `AdapterRequestDevice`
if (aInfo->features & WGPUFeatures_DEPTH_CLIP_CONTROL) {
dom::GPUSupportedFeatures_Binding::SetlikeHelpers::Add(
mFeatures, u"depth-clip-control"_ns, result);
}
if (aInfo->features & WGPUFeatures_TEXTURE_COMPRESSION_BC) {
dom::GPUSupportedFeatures_Binding::SetlikeHelpers::Add(
mFeatures, u"texture-compression-bc"_ns, result);
}
if (aInfo->features & WGPUFeatures_INDIRECT_FIRST_INSTANCE) {
dom::GPUSupportedFeatures_Binding::SetlikeHelpers::Add(
mFeatures, u"indirect-first-instance"_ns, result);
}
if (aInfo->features & WGPUFeatures_DEPTH32FLOAT_STENCIL8) {
dom::GPUSupportedFeatures_Binding::SetlikeHelpers::Add(
mFeatures, u"depth32float-stencil8"_ns, result);
}
}
Adapter::~Adapter() { Cleanup(); }
void Adapter::Cleanup() {
if (mValid && mBridge && mBridge->CanSend()) {
mValid = false;
mBridge->SendAdapterDestroy(mId);
}
}
const RefPtr<SupportedFeatures>& Adapter::Features() const { return mFeatures; }
const RefPtr<SupportedLimits>& Adapter::Limits() const { return mLimits; }
bool Adapter::IsFallbackAdapter() const {
return mInfo->device_type == ffi::WGPUDeviceType::WGPUDeviceType_Cpu;
}
already_AddRefed<dom::Promise> Adapter::RequestDevice(
const dom::GPUDeviceDescriptor& aDesc, ErrorResult& aRv) {
RefPtr<dom::Promise> promise = dom::Promise::Create(GetParentObject(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
if (!mBridge->CanSend()) {
promise->MaybeRejectWithInvalidStateError(
"WebGPUChild cannot send, must recreate Adapter");
return promise.forget();
}
ffi::WGPULimits limits = {};
auto request = mBridge->AdapterRequestDevice(mId, aDesc, &limits);
if (request) {
RefPtr<Device> device =
new Device(this, request->mId, MakeUnique<ffi::WGPULimits>(limits));
// copy over the features
for (const auto& feature : aDesc.mRequiredFeatures) {
NS_ConvertASCIItoUTF16 string(
dom::GPUFeatureNameValues::GetString(feature));
dom::GPUSupportedFeatures_Binding::SetlikeHelpers::Add(device->mFeatures,
string, aRv);
}
request->mPromise->Then(
GetCurrentSerialEventTarget(), __func__,
[promise, device](bool aSuccess) {
if (aSuccess) {
promise->MaybeResolve(device);
} else {
// In this path, request->mId has an error entry in the wgpu
// registry, so let Device::~Device clean things up on both the
// child and parent side.
promise->MaybeRejectWithInvalidStateError(
"Unable to fulfill requested features and limits");
}
},
[promise, device](const ipc::ResponseRejectReason& aReason) {
// We can't be sure how far along the WebGPUParent got in handling
// our AdapterRequestDevice message, but we can't communicate with it,
// so clear up our client state for this Device without trying to
// communicate with the parent about it.
device->CleanupUnregisteredInParent();
promise->MaybeRejectWithNotSupportedError("IPC error");
});
} else {
promise->MaybeRejectWithNotSupportedError("Unable to instantiate a Device");
}
return promise.forget();
}
// -
already_AddRefed<dom::Promise> Adapter::RequestAdapterInfo(
const dom::Sequence<nsString>& /*aUnmaskHints*/, ErrorResult& aRv) const {
RefPtr<dom::Promise> promise = dom::Promise::Create(GetParentObject(), aRv);
if (!promise) return nullptr;
auto rai = UniquePtr<AdapterInfo>{new AdapterInfo(mInfo)};
promise->MaybeResolve(std::move(rai));
return promise.forget();
}
} // namespace mozilla::webgpu
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