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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/WebGPUBinding.h"
#include "CommandEncoder.h"
#include "CommandBuffer.h"
#include "Buffer.h"
#include "ComputePassEncoder.h"
#include "Device.h"
#include "RenderPassEncoder.h"
#include "mozilla/dom/HTMLCanvasElement.h"
#include "mozilla/webgpu/ffi/wgpu.h"
#include "ipc/WebGPUChild.h"
namespace mozilla {
namespace webgpu {
GPU_IMPL_CYCLE_COLLECTION(CommandEncoder, mParent, mBridge)
GPU_IMPL_JS_WRAP(CommandEncoder)
void CommandEncoder::ConvertTextureDataLayoutToFFI(
const dom::GPUTextureDataLayout& aLayout,
ffi::WGPUTextureDataLayout* aLayoutFFI) {
*aLayoutFFI = {};
aLayoutFFI->offset = aLayout.mOffset;
aLayoutFFI->bytes_per_row = aLayout.mBytesPerRow;
aLayoutFFI->rows_per_image = aLayout.mRowsPerImage;
}
void CommandEncoder::ConvertTextureCopyViewToFFI(
const dom::GPUTextureCopyView& aView, ffi::WGPUTextureCopyView* aViewFFI) {
*aViewFFI = {};
aViewFFI->texture = aView.mTexture->mId;
aViewFFI->mip_level = aView.mMipLevel;
if (aView.mOrigin.WasPassed()) {
const auto& origin = aView.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");
}
}
}
void CommandEncoder::ConvertExtent3DToFFI(const dom::GPUExtent3D& aExtent,
ffi::WGPUExtent3d* aExtentFFI) {
*aExtentFFI = {};
if (aExtent.IsRangeEnforcedUnsignedLongSequence()) {
const auto& seq = aExtent.GetAsRangeEnforcedUnsignedLongSequence();
aExtentFFI->width = seq.Length() > 0 ? seq[0] : 0;
aExtentFFI->height = seq.Length() > 1 ? seq[1] : 0;
aExtentFFI->depth = seq.Length() > 2 ? seq[2] : 0;
} else if (aExtent.IsGPUExtent3DDict()) {
const auto& dict = aExtent.GetAsGPUExtent3DDict();
aExtentFFI->width = dict.mWidth;
aExtentFFI->height = dict.mHeight;
aExtentFFI->depth = dict.mDepth;
} else {
MOZ_CRASH("Unexptected extent type");
}
}
static ffi::WGPUBufferCopyView ConvertBufferCopyView(
const dom::GPUBufferCopyView& aView) {
ffi::WGPUBufferCopyView view = {};
view.buffer = aView.mBuffer->mId;
CommandEncoder::ConvertTextureDataLayoutToFFI(aView, &view.layout);
return view;
}
static ffi::WGPUTextureCopyView ConvertTextureCopyView(
const dom::GPUTextureCopyView& aView) {
ffi::WGPUTextureCopyView view = {};
CommandEncoder::ConvertTextureCopyViewToFFI(aView, &view);
return view;
}
static ffi::WGPUExtent3d ConvertExtent(const dom::GPUExtent3D& aExtent) {
ffi::WGPUExtent3d extent = {};
CommandEncoder::ConvertExtent3DToFFI(aExtent, &extent);
return extent;
}
CommandEncoder::CommandEncoder(Device* const aParent,
WebGPUChild* const aBridge, RawId aId)
: ChildOf(aParent), mId(aId), mBridge(aBridge) {}
CommandEncoder::~CommandEncoder() { Cleanup(); }
void CommandEncoder::Cleanup() {
if (mValid && mParent) {
mValid = false;
auto bridge = mParent->GetBridge();
if (bridge && bridge->IsOpen()) {
bridge->SendCommandEncoderDestroy(mId);
}
}
}
void CommandEncoder::CopyBufferToBuffer(const Buffer& aSource,
BufferAddress aSourceOffset,
const Buffer& aDestination,
BufferAddress aDestinationOffset,
BufferAddress aSize) {
if (mValid) {
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::GPUBufferCopyView& aSource,
const dom::GPUTextureCopyView& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (mValid) {
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_copy_buffer_to_texture(
ConvertBufferCopyView(aSource), ConvertTextureCopyView(aDestination),
ConvertExtent(aCopySize), ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
}
void CommandEncoder::CopyTextureToBuffer(
const dom::GPUTextureCopyView& aSource,
const dom::GPUBufferCopyView& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (mValid) {
ipc::ByteBuf bb;
ffi::wgpu_command_encoder_copy_texture_to_buffer(
ConvertTextureCopyView(aSource), ConvertBufferCopyView(aDestination),
ConvertExtent(aCopySize), ToFFI(&bb));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(bb));
}
}
void CommandEncoder::CopyTextureToTexture(
const dom::GPUTextureCopyView& aSource,
const dom::GPUTextureCopyView& aDestination,
const dom::GPUExtent3D& aCopySize) {
if (mValid) {
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));
}
}
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) {
auto* targetCanvasElement = at.mAttachment->GetTargetCanvasElement();
if (targetCanvasElement) {
if (mTargetCanvasElement) {
NS_WARNING("Command encoder touches more than one canvas");
} else {
mTargetCanvasElement = targetCanvasElement;
}
}
}
RefPtr<RenderPassEncoder> pass = new RenderPassEncoder(this, aDesc);
return pass.forget();
}
void CommandEncoder::EndComputePass(ffi::WGPUComputePass& aPass,
ErrorResult& aRv) {
if (!mValid) {
return aRv.ThrowInvalidStateError("Command encoder is not valid");
}
ipc::ByteBuf byteBuf;
ffi::wgpu_compute_pass_finish(&aPass, ToFFI(&byteBuf));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(byteBuf));
}
void CommandEncoder::EndRenderPass(ffi::WGPURenderPass& aPass,
ErrorResult& aRv) {
if (!mValid) {
return aRv.ThrowInvalidStateError("Command encoder is not valid");
}
ipc::ByteBuf byteBuf;
ffi::wgpu_render_pass_finish(&aPass, ToFFI(&byteBuf));
mBridge->SendCommandEncoderAction(mId, mParent->mId, std::move(byteBuf));
}
already_AddRefed<CommandBuffer> CommandEncoder::Finish(
const dom::GPUCommandBufferDescriptor& aDesc) {
RawId id = 0;
if (mValid) {
mValid = false;
id = mBridge->CommandEncoderFinish(mId, mParent->mId, aDesc);
}
RefPtr<CommandBuffer> comb =
new CommandBuffer(mParent, id, mTargetCanvasElement);
return comb.forget();
}
} // namespace webgpu
} // namespace mozilla
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