Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "mozilla/dom/UnionTypes.h"
#include "mozilla/dom/WebGPUBinding.h"
#include "CommandEncoder.h"
#include "CommandBuffer.h"
#include "Buffer.h"
#include "ComputePassEncoder.h"
#include "Device.h"
#include "RenderPassEncoder.h"
#include "Utility.h"
#include "mozilla/webgpu/CanvasContext.h"
#include "mozilla/webgpu/ffi/wgpu.h"
#include "ipc/WebGPUChild.h"
namespace mozilla::webgpu {
GPU_IMPL_CYCLE_COLLECTION(CommandEncoder, mParent, mBridge)
GPU_IMPL_JS_WRAP(CommandEncoder)
void CommandEncoder::ConvertTextureDataLayoutToFFI(
const dom::GPUImageDataLayout& aLayout,
ffi::WGPUImageDataLayout* aLayoutFFI) {
*aLayoutFFI = {};
aLayoutFFI->offset = aLayout.mOffset;
if (aLayout.mBytesPerRow.WasPassed()) {
aLayoutFFI->bytes_per_row = &aLayout.mBytesPerRow.Value();
} else {
aLayoutFFI->bytes_per_row = nullptr;
}
if (aLayout.mRowsPerImage.WasPassed()) {
aLayoutFFI->rows_per_image = &aLayout.mRowsPerImage.Value();
} else {
aLayoutFFI->rows_per_image = nullptr;
}
}
void CommandEncoder::ConvertTextureCopyViewToFFI(
const dom::GPUImageCopyTexture& aCopy,
ffi::WGPUImageCopyTexture* aViewFFI) {
*aViewFFI = {};
aViewFFI->texture = aCopy.mTexture->mId;
aViewFFI->mip_level = aCopy.mMipLevel;
if (aCopy.mOrigin.WasPassed()) {
const auto& origin = aCopy.mOrigin.Value();
if (origin.IsRangeEnforcedUnsignedLongSequence()) {
const auto& seq = origin.GetAsRangeEnforcedUnsignedLongSequence();
aViewFFI->origin.x = seq.Length() > 0 ? seq[0] : 0;
aViewFFI->origin.y = seq.Length() > 1 ? seq[1] : 0;
aViewFFI->origin.z = seq.Length() > 2 ? seq[2] : 0;
} else if (origin.IsGPUOrigin3DDict()) {
const auto& dict = origin.GetAsGPUOrigin3DDict();
aViewFFI->origin.x = dict.mX;
aViewFFI->origin.y = dict.mY;
aViewFFI->origin.z = dict.mZ;
} else {
MOZ_CRASH("Unexpected origin type");
}
}
}
static ffi::WGPUImageCopyTexture ConvertTextureCopyView(
const dom::GPUImageCopyTexture& aCopy) {
ffi::WGPUImageCopyTexture view = {};
CommandEncoder::ConvertTextureCopyViewToFFI(aCopy, &view);
return view;
}
CommandEncoder::CommandEncoder(Device* const aParent,
WebGPUChild* const aBridge, RawId aId)
: ChildOf(aParent), mId(aId), mBridge(aBridge) {
MOZ_RELEASE_ASSERT(aId);
}
CommandEncoder::~CommandEncoder() { Cleanup(); }
void CommandEncoder::Cleanup() {
if (!mValid) {
return;
}
mValid = false;
if (!mBridge) {
return;
}
if (mBridge->CanSend()) {
mBridge->SendCommandEncoderDrop(mId);
}
wgpu_client_free_command_encoder_id(mBridge->GetClient(), mId);
}
void CommandEncoder::TrackPresentationContext(CanvasContext* aTargetContext) {
if (aTargetContext) {
if (!aTargetContext->IsOffscreenCanvas()) {
mPresentationContexts.AppendElement(aTargetContext);
}
}
}
void CommandEncoder::CopyBufferToBuffer(const Buffer& aSource,
BufferAddress aSourceOffset,
const Buffer& aDestination,
BufferAddress aDestinationOffset,
BufferAddress aSize) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_copy_buffer_to_buffer(
aSource.mId, aSourceOffset, aDestination.mId, aDestinationOffset, aSize,
ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
void CommandEncoder::CopyBufferToTexture(
const dom::GPUImageCopyBuffer& aSource,
const dom::GPUImageCopyTexture& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
ffi::WGPUImageDataLayout src_layout = {};
CommandEncoder::ConvertTextureDataLayoutToFFI(aSource, &src_layout);
ffi::wgpu_command_encoder_copy_buffer_to_texture(
aSource.mBuffer->mId, &src_layout, ConvertTextureCopyView(aDestination),
ConvertExtent(aCopySize), ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
TrackPresentationContext(aDestination.mTexture->mTargetContext);
}
void CommandEncoder::CopyTextureToBuffer(
const dom::GPUImageCopyTexture& aSource,
const dom::GPUImageCopyBuffer& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
ffi::WGPUImageDataLayout dstLayout = {};
CommandEncoder::ConvertTextureDataLayoutToFFI(aDestination, &dstLayout);
ffi::wgpu_command_encoder_copy_texture_to_buffer(
ConvertTextureCopyView(aSource), aDestination.mBuffer->mId, &dstLayout,
ConvertExtent(aCopySize), ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
void CommandEncoder::CopyTextureToTexture(
const dom::GPUImageCopyTexture& aSource,
const dom::GPUImageCopyTexture& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_copy_texture_to_texture(
ConvertTextureCopyView(aSource), ConvertTextureCopyView(aDestination),
ConvertExtent(aCopySize), ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
TrackPresentationContext(aDestination.mTexture->mTargetContext);
}
void CommandEncoder::ClearBuffer(const Buffer& aBuffer, const uint64_t aOffset,
const dom::Optional<uint64_t>& aSize) {
uint64_t sizeVal = 0xdeaddead;
uint64_t* size = nullptr;
if (aSize.WasPassed()) {
sizeVal = aSize.Value();
size = &sizeVal;
}
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_clear_buffer(aBuffer.mId, aOffset, size,
ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
void CommandEncoder::PushDebugGroup(const nsAString& aString) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
NS_ConvertUTF16toUTF8 marker(aString);
ffi::wgpu_command_encoder_push_debug_group(&marker, ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
void CommandEncoder::PopDebugGroup() {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_pop_debug_group(ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
void CommandEncoder::InsertDebugMarker(const nsAString& aString) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf bb;
NS_ConvertUTF16toUTF8 marker(aString);
ffi::wgpu_command_encoder_insert_debug_marker(&marker, ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
already_AddRefed<ComputePassEncoder> CommandEncoder::BeginComputePass(
const dom::GPUComputePassDescriptor& aDesc) {
RefPtr<ComputePassEncoder> pass = new ComputePassEncoder(this, aDesc);
return pass.forget();
}
already_AddRefed<RenderPassEncoder> CommandEncoder::BeginRenderPass(
const dom::GPURenderPassDescriptor& aDesc) {
for (const auto& at : aDesc.mColorAttachments) {
TrackPresentationContext(at.mView->GetTargetContext());
if (at.mResolveTarget.WasPassed()) {
TrackPresentationContext(at.mResolveTarget.Value().GetTargetContext());
}
}
RefPtr<RenderPassEncoder> pass = new RenderPassEncoder(this, aDesc);
return pass.forget();
}
void CommandEncoder::EndComputePass(ffi::WGPURecordedComputePass& aPass) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf byteBuf;
ffi::wgpu_compute_pass_finish(&aPass, ToFFI(&byteBuf));
mBridge->SendComputePass(mId, mParent->mId, std::move(byteBuf));
}
void CommandEncoder::EndRenderPass(ffi::WGPURecordedRenderPass& aPass) {
if (!mBridge->CanSend()) {
return;
}
ipc::ByteBuf byteBuf;
ffi::wgpu_render_pass_finish(&aPass, ToFFI(&byteBuf));
mBridge->SendRenderPass(mId, mParent->mId, std::move(byteBuf));
}
already_AddRefed<CommandBuffer> CommandEncoder::Finish(
const dom::GPUCommandBufferDescriptor& aDesc) {
// We rely on knowledge that `CommandEncoderId` == `CommandBufferId`
// TODO: refactor this to truly behave as if the encoder is being finished,
// and a new command buffer ID is being created from it. Resolve the ID
// type aliasing at the place that introduces it: `wgpu-core`.
RawId deviceId = mParent->mId;
if (mBridge->CanSend()) {
mBridge->SendCommandEncoderFinish(mId, deviceId, aDesc);
}
RefPtr<CommandEncoder> me(this);
RefPtr<CommandBuffer> comb = new CommandBuffer(
mParent, mId, std::move(mPresentationContexts), std::move(me));
return comb.forget();
}
} // namespace mozilla::webgpu