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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 "ComputePassEncoder.h"
#include "BindGroup.h"
#include "CommandEncoder.h"
#include "ComputePipeline.h"
#include "ExternalTexture.h"
#include "Utility.h"
#include "mozilla/dom/WebGPUBinding.h"
#include "mozilla/webgpu/ffi/wgpu.h"
namespace mozilla::webgpu {
GPU_IMPL_CYCLE_COLLECTION(ComputePassEncoder, mParent, mUsedBindGroups,
mUsedBuffers, mUsedPipelines)
GPU_IMPL_JS_WRAP(ComputePassEncoder)
void ffiWGPUComputePassDeleter::operator()(ffi::WGPURecordedComputePass* raw) {
if (raw) {
ffi::wgpu_compute_pass_destroy(raw);
}
}
ffi::WGPURecordedComputePass* BeginComputePass(
RawId aEncoderId, const dom::GPUComputePassDescriptor& aDesc) {
MOZ_RELEASE_ASSERT(aEncoderId);
ffi::WGPUComputePassDescriptor desc = {};
webgpu::StringHelper label(aDesc.mLabel);
desc.label = label.Get();
ffi::WGPUPassTimestampWrites passTimestampWrites = {};
if (aDesc.mTimestampWrites.WasPassed()) {
AssignPassTimestampWrites(aDesc.mTimestampWrites.Value(),
passTimestampWrites);
desc.timestamp_writes = &passTimestampWrites;
}
return ffi::wgpu_command_encoder_begin_compute_pass(&desc);
}
ComputePassEncoder::ComputePassEncoder(
CommandEncoder* const aParent, RawId aId,
const dom::GPUComputePassDescriptor& aDesc)
: ObjectBase(aParent->GetChild(), aId,
ffi::wgpu_client_drop_compute_pass_encoder),
ChildOf(aParent),
mPass(BeginComputePass(aParent->GetId(), aDesc)) {}
ComputePassEncoder::~ComputePassEncoder() = default;
void ComputePassEncoder::SetBindGroup(uint32_t aSlot,
BindGroup* const aBindGroup,
const uint32_t* aDynamicOffsets,
size_t aDynamicOffsetsLength) {
RawId bindGroup = 0;
if (aBindGroup) {
mUsedBindGroups.AppendElement(aBindGroup);
mUsedCanvasContexts.AppendElements(aBindGroup->GetCanvasContexts());
bindGroup = aBindGroup->GetId();
}
ffi::wgpu_recorded_compute_pass_set_bind_group(
mPass.get(), aSlot, bindGroup, {aDynamicOffsets, aDynamicOffsetsLength});
}
void ComputePassEncoder::SetBindGroup(
uint32_t aSlot, BindGroup* const aBindGroup,
const dom::Sequence<uint32_t>& aDynamicOffsets, ErrorResult& aRv) {
if (!mValid) {
return;
}
this->SetBindGroup(aSlot, aBindGroup, aDynamicOffsets.Elements(),
aDynamicOffsets.Length());
}
void ComputePassEncoder::SetBindGroup(
uint32_t aSlot, BindGroup* const aBindGroup,
const dom::Uint32Array& aDynamicOffsetsData,
uint64_t aDynamicOffsetsDataStart, uint64_t aDynamicOffsetsDataLength,
ErrorResult& aRv) {
if (!mValid) {
return;
}
auto dynamicOffsets =
GetDynamicOffsetsFromArray(aDynamicOffsetsData, aDynamicOffsetsDataStart,
aDynamicOffsetsDataLength, aRv);
if (dynamicOffsets.isSome()) {
this->SetBindGroup(aSlot, aBindGroup, dynamicOffsets->Elements(),
dynamicOffsets->Length());
}
}
void ComputePassEncoder::SetPipeline(const ComputePipeline& aPipeline) {
if (!mValid) {
return;
}
mUsedPipelines.AppendElement(&aPipeline);
ffi::wgpu_recorded_compute_pass_set_pipeline(mPass.get(), aPipeline.GetId());
}
void ComputePassEncoder::DispatchWorkgroups(uint32_t workgroupCountX,
uint32_t workgroupCountY,
uint32_t workgroupCountZ) {
if (!mValid) {
return;
}
ffi::wgpu_recorded_compute_pass_dispatch_workgroups(
mPass.get(), workgroupCountX, workgroupCountY, workgroupCountZ);
}
void ComputePassEncoder::DispatchWorkgroupsIndirect(
const Buffer& aIndirectBuffer, uint64_t aIndirectOffset) {
if (!mValid) {
return;
}
mUsedBuffers.AppendElement(&aIndirectBuffer);
ffi::wgpu_recorded_compute_pass_dispatch_workgroups_indirect(
mPass.get(), aIndirectBuffer.GetId(), aIndirectOffset);
}
void ComputePassEncoder::PushDebugGroup(const nsAString& aString) {
if (!mValid) {
return;
}
const NS_ConvertUTF16toUTF8 utf8(aString);
ffi::wgpu_recorded_compute_pass_push_debug_group(mPass.get(), utf8.get(), 0);
}
void ComputePassEncoder::PopDebugGroup() {
if (!mValid) {
return;
}
ffi::wgpu_recorded_compute_pass_pop_debug_group(mPass.get());
}
void ComputePassEncoder::InsertDebugMarker(const nsAString& aString) {
if (!mValid) {
return;
}
const NS_ConvertUTF16toUTF8 utf8(aString);
ffi::wgpu_recorded_compute_pass_insert_debug_marker(mPass.get(), utf8.get(),
0);
}
void ComputePassEncoder::End() {
if (mParent->GetState() != CommandEncoderState::Locked) {
const auto* message = "Encoding must not have ended";
ffi::wgpu_report_validation_error(GetClient(),
mParent->GetDevice()->GetId(), message);
}
if (!mValid) {
return;
}
nsTArray<RefPtr<ExternalTexture>> externalTextures;
for (const auto& bindGroup : mUsedBindGroups) {
externalTextures.AppendElements(bindGroup->GetExternalTextures());
}
MOZ_ASSERT(!!mPass);
mParent->EndComputePass(*mPass, mUsedCanvasContexts, externalTextures);
mValid = false;
mPass.release();
mUsedBindGroups.Clear();
mUsedBuffers.Clear();
mUsedPipelines.Clear();
}
} // namespace mozilla::webgpu
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