src/dawn_native/RenderPassEncoder.cpp - dawn - Git at Google

 // Copyright 2018 The Dawn Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include "dawn_native/RenderPassEncoder.h"

 #include "common/Constants.h"
 #include "dawn_native/Buffer.h"
 #include "dawn_native/CommandEncoder.h"
 #include "dawn_native/CommandValidation.h"
 #include "dawn_native/Commands.h"
 #include "dawn_native/Device.h"
 #include "dawn_native/ObjectType_autogen.h"
 #include "dawn_native/QuerySet.h"
 #include "dawn_native/RenderBundle.h"
 #include "dawn_native/RenderPipeline.h"

 #include <math.h>
 #include <cstring>

 namespace dawn_native {
     namespace {

         // Check the query at queryIndex is unavailable, otherwise it cannot be written.
         MaybeError ValidateQueryIndexOverwrite(QuerySetBase* querySet,
                                                uint32_t queryIndex,
                                                const QueryAvailabilityMap& queryAvailabilityMap) {
             auto it = queryAvailabilityMap.find(querySet);
             DAWN_INVALID_IF(it != queryAvailabilityMap.end() && it->second[queryIndex],
                             "Query index %u of %s is written to twice in a render pass.",
                             queryIndex, querySet);

             return {};
         }

     }  // namespace

     // The usage tracker is passed in here, because it is prepopulated with usages from the
     // BeginRenderPassCmd. If we had RenderPassEncoder responsible for recording the
     // command, then this wouldn't be necessary.
     RenderPassEncoder::RenderPassEncoder(DeviceBase* device,
                                          CommandEncoder* commandEncoder,
                                          EncodingContext* encodingContext,
                                          RenderPassResourceUsageTracker usageTracker,
                                          Ref<AttachmentState> attachmentState,
                                          QuerySetBase* occlusionQuerySet,
                                          uint32_t renderTargetWidth,
                                          uint32_t renderTargetHeight)
         : RenderEncoderBase(device, encodingContext, std::move(attachmentState)),
           mCommandEncoder(commandEncoder),
           mRenderTargetWidth(renderTargetWidth),
           mRenderTargetHeight(renderTargetHeight),
           mOcclusionQuerySet(occlusionQuerySet) {
         mUsageTracker = std::move(usageTracker);
     }

     RenderPassEncoder::RenderPassEncoder(DeviceBase* device,
                                          CommandEncoder* commandEncoder,
                                          EncodingContext* encodingContext,
                                          ErrorTag errorTag)
         : RenderEncoderBase(device, encodingContext, errorTag), mCommandEncoder(commandEncoder) {
     }

     RenderPassEncoder* RenderPassEncoder::MakeError(DeviceBase* device,
                                                     CommandEncoder* commandEncoder,
                                                     EncodingContext* encodingContext) {
         return new RenderPassEncoder(device, commandEncoder, encodingContext, ObjectBase::kError);
     }

     ObjectType RenderPassEncoder::GetType() const {
         return ObjectType::RenderPassEncoder;
     }

     void RenderPassEncoder::TrackQueryAvailability(QuerySetBase* querySet, uint32_t queryIndex) {
         DAWN_ASSERT(querySet != nullptr);

         // Track the query availability with true on render pass for rewrite validation and query
         // reset on render pass on Vulkan
         mUsageTracker.TrackQueryAvailability(querySet, queryIndex);

         // Track it again on command encoder for zero-initializing when resolving unused queries.
         mCommandEncoder->TrackQueryAvailability(querySet, queryIndex);
     }

     void RenderPassEncoder::APIEndPass() {
         if (mEncodingContext->TryEncode(
                 this,
                 [&](CommandAllocator* allocator) -> MaybeError {
                     if (IsValidationEnabled()) {
                         DAWN_TRY(ValidateProgrammableEncoderEnd());

                         DAWN_INVALID_IF(
                             mOcclusionQueryActive,
                             "Render pass %s ended with incomplete occlusion query index %u of %s.",
                             this, mCurrentOcclusionQueryIndex, mOcclusionQuerySet.Get());
                     }

                     allocator->Allocate<EndRenderPassCmd>(Command::EndRenderPass);
                     DAWN_TRY(mEncodingContext->ExitRenderPass(this, std::move(mUsageTracker),
                                                               mCommandEncoder.Get(),
                                                               std::move(mIndirectDrawMetadata)));
                     return {};
                 },
                 "encoding EndPass().")) {
         }
     }

     void RenderPassEncoder::APISetStencilReference(uint32_t reference) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 SetStencilReferenceCmd* cmd =
                     allocator->Allocate<SetStencilReferenceCmd>(Command::SetStencilReference);
                 cmd->reference = reference;

                 return {};
             },
             "encoding SetStencilReference(%u)", reference);
     }

     void RenderPassEncoder::APISetBlendConstant(const Color* color) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 SetBlendConstantCmd* cmd =
                     allocator->Allocate<SetBlendConstantCmd>(Command::SetBlendConstant);
                 cmd->color = *color;

                 return {};
             },
             "encoding SetBlendConstant(%s).", color);
     }

     void RenderPassEncoder::APISetViewport(float x,
                                            float y,
                                            float width,
                                            float height,
                                            float minDepth,
                                            float maxDepth) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     DAWN_INVALID_IF(
                         (isnan(x) || isnan(y) || isnan(width) || isnan(height) || isnan(minDepth) ||
                          isnan(maxDepth)),
                         "A parameter of the viewport (x: %f, y: %f, width: %f, height: %f, "
                         "minDepth: %f, maxDepth: %f) is NaN.",
                         x, y, width, height, minDepth, maxDepth);

                     DAWN_INVALID_IF(
                         x < 0 || y < 0 || width < 0 || height < 0,
                         "Viewport bounds (x: %f, y: %f, width: %f, height: %f) contains a negative "
                         "value.",
                         x, y, width, height);

                     DAWN_INVALID_IF(
                         x + width > mRenderTargetWidth || y + height > mRenderTargetHeight,
                         "Viewport bounds (x: %f, y: %f, width: %f, height: %f) are not contained "
                         "in "
                         "the render target dimensions (%u x %u).",
                         x, y, width, height, mRenderTargetWidth, mRenderTargetHeight);

                     // Check for depths being in [0, 1] and min <= max in 3 checks instead of 5.
                     DAWN_INVALID_IF(minDepth < 0 || minDepth > maxDepth || maxDepth > 1,
                                     "Viewport minDepth (%f) and maxDepth (%f) are not in [0, 1] or "
                                     "minDepth was "
                                     "greater than maxDepth.",
                                     minDepth, maxDepth);
                 }

                 SetViewportCmd* cmd = allocator->Allocate<SetViewportCmd>(Command::SetViewport);
                 cmd->x = x;
                 cmd->y = y;
                 cmd->width = width;
                 cmd->height = height;
                 cmd->minDepth = minDepth;
                 cmd->maxDepth = maxDepth;

                 return {};
             },
             "encoding SetViewport(%f, %f, %f, %f, %f, %f).", x, y, width, height, minDepth,
             maxDepth);
     }

     void RenderPassEncoder::APISetScissorRect(uint32_t x,
                                               uint32_t y,
                                               uint32_t width,
                                               uint32_t height) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     DAWN_INVALID_IF(
                         width > mRenderTargetWidth || height > mRenderTargetHeight ||
                             x > mRenderTargetWidth - width || y > mRenderTargetHeight - height,
                         "Scissor rect (x: %u, y: %u, width: %u, height: %u) is not contained in "
                         "the render target dimensions (%u x %u).",
                         x, y, width, height, mRenderTargetWidth, mRenderTargetHeight);
                 }

                 SetScissorRectCmd* cmd =
                     allocator->Allocate<SetScissorRectCmd>(Command::SetScissorRect);
                 cmd->x = x;
                 cmd->y = y;
                 cmd->width = width;
                 cmd->height = height;

                 return {};
             },
             "encoding SetScissorRect(%u, %u, %u, %u).", x, y, width, height);
     }

     void RenderPassEncoder::APIExecuteBundles(uint32_t count,
                                               RenderBundleBase* const* renderBundles) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     for (uint32_t i = 0; i < count; ++i) {
                         DAWN_TRY(GetDevice()->ValidateObject(renderBundles[i]));

                         // TODO(dawn:563): Give more detail about why the states are incompatible.
                         DAWN_INVALID_IF(
                             GetAttachmentState() != renderBundles[i]->GetAttachmentState(),
                             "Attachment state of renderBundles[%i] (%s) is not compatible with "
                             "attachment state of %s.",
                             i, renderBundles[i], this);
                     }
                 }

                 mCommandBufferState = CommandBufferStateTracker{};

                 ExecuteBundlesCmd* cmd =
                     allocator->Allocate<ExecuteBundlesCmd>(Command::ExecuteBundles);
                 cmd->count = count;

                 Ref<RenderBundleBase>* bundles =
                     allocator->AllocateData<Ref<RenderBundleBase>>(count);
                 for (uint32_t i = 0; i < count; ++i) {
                     bundles[i] = renderBundles[i];

                     const RenderPassResourceUsage& usages = bundles[i]->GetResourceUsage();
                     for (uint32_t i = 0; i < usages.buffers.size(); ++i) {
                         mUsageTracker.BufferUsedAs(usages.buffers[i], usages.bufferUsages[i]);
                     }

                     for (uint32_t i = 0; i < usages.textures.size(); ++i) {
                         mUsageTracker.AddRenderBundleTextureUsage(usages.textures[i],
                                                                   usages.textureUsages[i]);
                     }

                     if (IsValidationEnabled()) {
                         mIndirectDrawMetadata.AddBundle(renderBundles[i]);
                     }
                 }

                 return {};
             },
             "encoding ExecuteBundles(%u, ...)", count);
     }

     void RenderPassEncoder::APIBeginOcclusionQuery(uint32_t queryIndex) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     DAWN_INVALID_IF(mOcclusionQuerySet.Get() == nullptr,
                                     "The occlusionQuerySet in RenderPassDescriptor is not set.");

                     // The type of querySet has been validated by ValidateRenderPassDescriptor

                     DAWN_INVALID_IF(queryIndex >= mOcclusionQuerySet->GetQueryCount(),
                                     "Query index (%u) exceeds the number of queries (%u) in %s.",
                                     queryIndex, mOcclusionQuerySet->GetQueryCount(),
                                     mOcclusionQuerySet.Get());

                     DAWN_INVALID_IF(mOcclusionQueryActive,
                                     "An occlusion query (%u) in %s is already active.",
                                     mCurrentOcclusionQueryIndex, mOcclusionQuerySet.Get());

                     DAWN_TRY_CONTEXT(
                         ValidateQueryIndexOverwrite(mOcclusionQuerySet.Get(), queryIndex,
                                                     mUsageTracker.GetQueryAvailabilityMap()),
                         "validating the occlusion query index (%u) in %s", queryIndex,
                         mOcclusionQuerySet.Get());
                 }

                 // Record the current query index for endOcclusionQuery.
                 mCurrentOcclusionQueryIndex = queryIndex;
                 mOcclusionQueryActive = true;

                 BeginOcclusionQueryCmd* cmd =
                     allocator->Allocate<BeginOcclusionQueryCmd>(Command::BeginOcclusionQuery);
                 cmd->querySet = mOcclusionQuerySet.Get();
                 cmd->queryIndex = queryIndex;

                 return {};
             },
             "encoding BeginOcclusionQuery(%u)", queryIndex);
     }

     void RenderPassEncoder::APIEndOcclusionQuery() {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     DAWN_INVALID_IF(!mOcclusionQueryActive, "No occlusion queries are active.");
                 }

                 TrackQueryAvailability(mOcclusionQuerySet.Get(), mCurrentOcclusionQueryIndex);

                 mOcclusionQueryActive = false;

                 EndOcclusionQueryCmd* cmd =
                     allocator->Allocate<EndOcclusionQueryCmd>(Command::EndOcclusionQuery);
                 cmd->querySet = mOcclusionQuerySet.Get();
                 cmd->queryIndex = mCurrentOcclusionQueryIndex;

                 return {};
             },
             "encoding EndOcclusionQuery()");
     }

     void RenderPassEncoder::APIWriteTimestamp(QuerySetBase* querySet, uint32_t queryIndex) {
         mEncodingContext->TryEncode(
             this,
             [&](CommandAllocator* allocator) -> MaybeError {
                 if (IsValidationEnabled()) {
                     DAWN_TRY(GetDevice()->ValidateObject(querySet));
                     DAWN_TRY(ValidateTimestampQuery(querySet, queryIndex));
                     DAWN_TRY_CONTEXT(
                         ValidateQueryIndexOverwrite(querySet, queryIndex,
                                                     mUsageTracker.GetQueryAvailabilityMap()),
                         "validating the timestamp query index (%u) of %s", queryIndex, querySet);
                 }

                 TrackQueryAvailability(querySet, queryIndex);

                 WriteTimestampCmd* cmd =
                     allocator->Allocate<WriteTimestampCmd>(Command::WriteTimestamp);
                 cmd->querySet = querySet;
                 cmd->queryIndex = queryIndex;

                 return {};
             },
             "encoding WriteTimestamp(%s, %u).", querySet, queryIndex);
     }

 }  // namespace dawn_native
	// Copyright 2018 The Dawn Authors
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include "dawn_native/RenderPassEncoder.h"

	#include "common/Constants.h"
	#include "dawn_native/Buffer.h"
	#include "dawn_native/CommandEncoder.h"
	#include "dawn_native/CommandValidation.h"
	#include "dawn_native/Commands.h"
	#include "dawn_native/Device.h"
	#include "dawn_native/ObjectType_autogen.h"
	#include "dawn_native/QuerySet.h"
	#include "dawn_native/RenderBundle.h"
	#include "dawn_native/RenderPipeline.h"

	#include <math.h>
	#include <cstring>

	namespace dawn_native {
	namespace {

	// Check the query at queryIndex is unavailable, otherwise it cannot be written.
	MaybeError ValidateQueryIndexOverwrite(QuerySetBase* querySet,
	uint32_t queryIndex,
	const QueryAvailabilityMap& queryAvailabilityMap) {
	auto it = queryAvailabilityMap.find(querySet);
	DAWN_INVALID_IF(it != queryAvailabilityMap.end() && it->second[queryIndex],
	"Query index %u of %s is written to twice in a render pass.",
	queryIndex, querySet);

	return {};
	}

	} // namespace

	// The usage tracker is passed in here, because it is prepopulated with usages from the
	// BeginRenderPassCmd. If we had RenderPassEncoder responsible for recording the
	// command, then this wouldn't be necessary.
	RenderPassEncoder::RenderPassEncoder(DeviceBase* device,
	CommandEncoder* commandEncoder,
	EncodingContext* encodingContext,
	RenderPassResourceUsageTracker usageTracker,
	Ref<AttachmentState> attachmentState,
	QuerySetBase* occlusionQuerySet,
	uint32_t renderTargetWidth,
	uint32_t renderTargetHeight)
	: RenderEncoderBase(device, encodingContext, std::move(attachmentState)),
	mCommandEncoder(commandEncoder),
	mRenderTargetWidth(renderTargetWidth),
	mRenderTargetHeight(renderTargetHeight),
	mOcclusionQuerySet(occlusionQuerySet) {
	mUsageTracker = std::move(usageTracker);
	}

	RenderPassEncoder::RenderPassEncoder(DeviceBase* device,
	CommandEncoder* commandEncoder,
	EncodingContext* encodingContext,
	ErrorTag errorTag)
	: RenderEncoderBase(device, encodingContext, errorTag), mCommandEncoder(commandEncoder) {
	}

	RenderPassEncoder* RenderPassEncoder::MakeError(DeviceBase* device,
	CommandEncoder* commandEncoder,
	EncodingContext* encodingContext) {
	return new RenderPassEncoder(device, commandEncoder, encodingContext, ObjectBase::kError);
	}

	ObjectType RenderPassEncoder::GetType() const {
	return ObjectType::RenderPassEncoder;
	}

	void RenderPassEncoder::TrackQueryAvailability(QuerySetBase* querySet, uint32_t queryIndex) {
	DAWN_ASSERT(querySet != nullptr);

	// Track the query availability with true on render pass for rewrite validation and query
	// reset on render pass on Vulkan
	mUsageTracker.TrackQueryAvailability(querySet, queryIndex);

	// Track it again on command encoder for zero-initializing when resolving unused queries.
	mCommandEncoder->TrackQueryAvailability(querySet, queryIndex);
	}

	void RenderPassEncoder::APIEndPass() {
	if (mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_TRY(ValidateProgrammableEncoderEnd());

	DAWN_INVALID_IF(
	mOcclusionQueryActive,
	"Render pass %s ended with incomplete occlusion query index %u of %s.",
	this, mCurrentOcclusionQueryIndex, mOcclusionQuerySet.Get());
	}

	allocator->Allocate<EndRenderPassCmd>(Command::EndRenderPass);
	DAWN_TRY(mEncodingContext->ExitRenderPass(this, std::move(mUsageTracker),
	mCommandEncoder.Get(),
	std::move(mIndirectDrawMetadata)));
	return {};
	},
	"encoding EndPass().")) {
	}
	}

	void RenderPassEncoder::APISetStencilReference(uint32_t reference) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	SetStencilReferenceCmd* cmd =
	allocator->Allocate<SetStencilReferenceCmd>(Command::SetStencilReference);
	cmd->reference = reference;

	return {};
	},
	"encoding SetStencilReference(%u)", reference);
	}

	void RenderPassEncoder::APISetBlendConstant(const Color* color) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	SetBlendConstantCmd* cmd =
	allocator->Allocate<SetBlendConstantCmd>(Command::SetBlendConstant);
	cmd->color = *color;

	return {};
	},
	"encoding SetBlendConstant(%s).", color);
	}

	void RenderPassEncoder::APISetViewport(float x,
	float y,
	float width,
	float height,
	float minDepth,
	float maxDepth) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_INVALID_IF(
	(isnan(x) \|\| isnan(y) \|\| isnan(width) \|\| isnan(height) \|\| isnan(minDepth) \|\|
	isnan(maxDepth)),
	"A parameter of the viewport (x: %f, y: %f, width: %f, height: %f, "
	"minDepth: %f, maxDepth: %f) is NaN.",
	x, y, width, height, minDepth, maxDepth);

	DAWN_INVALID_IF(
	x < 0 \|\| y < 0 \|\| width < 0 \|\| height < 0,
	"Viewport bounds (x: %f, y: %f, width: %f, height: %f) contains a negative "
	"value.",
	x, y, width, height);

	DAWN_INVALID_IF(
	x + width > mRenderTargetWidth \|\| y + height > mRenderTargetHeight,
	"Viewport bounds (x: %f, y: %f, width: %f, height: %f) are not contained "
	"in "
	"the render target dimensions (%u x %u).",
	x, y, width, height, mRenderTargetWidth, mRenderTargetHeight);

	// Check for depths being in [0, 1] and min <= max in 3 checks instead of 5.
	DAWN_INVALID_IF(minDepth < 0 \|\| minDepth > maxDepth \|\| maxDepth > 1,
	"Viewport minDepth (%f) and maxDepth (%f) are not in [0, 1] or "
	"minDepth was "
	"greater than maxDepth.",
	minDepth, maxDepth);
	}

	SetViewportCmd* cmd = allocator->Allocate<SetViewportCmd>(Command::SetViewport);
	cmd->x = x;
	cmd->y = y;
	cmd->width = width;
	cmd->height = height;
	cmd->minDepth = minDepth;
	cmd->maxDepth = maxDepth;

	return {};
	},
	"encoding SetViewport(%f, %f, %f, %f, %f, %f).", x, y, width, height, minDepth,
	maxDepth);
	}

	void RenderPassEncoder::APISetScissorRect(uint32_t x,
	uint32_t y,
	uint32_t width,
	uint32_t height) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_INVALID_IF(
	width > mRenderTargetWidth \|\| height > mRenderTargetHeight \|\|
	x > mRenderTargetWidth - width \|\| y > mRenderTargetHeight - height,
	"Scissor rect (x: %u, y: %u, width: %u, height: %u) is not contained in "
	"the render target dimensions (%u x %u).",
	x, y, width, height, mRenderTargetWidth, mRenderTargetHeight);
	}

	SetScissorRectCmd* cmd =
	allocator->Allocate<SetScissorRectCmd>(Command::SetScissorRect);
	cmd->x = x;
	cmd->y = y;
	cmd->width = width;
	cmd->height = height;

	return {};
	},
	"encoding SetScissorRect(%u, %u, %u, %u).", x, y, width, height);
	}

	void RenderPassEncoder::APIExecuteBundles(uint32_t count,
	RenderBundleBase* const* renderBundles) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	for (uint32_t i = 0; i < count; ++i) {
	DAWN_TRY(GetDevice()->ValidateObject(renderBundles[i]));

	// TODO(dawn:563): Give more detail about why the states are incompatible.
	DAWN_INVALID_IF(
	GetAttachmentState() != renderBundles[i]->GetAttachmentState(),
	"Attachment state of renderBundles[%i] (%s) is not compatible with "
	"attachment state of %s.",
	i, renderBundles[i], this);
	}
	}

	mCommandBufferState = CommandBufferStateTracker{};

	ExecuteBundlesCmd* cmd =
	allocator->Allocate<ExecuteBundlesCmd>(Command::ExecuteBundles);
	cmd->count = count;

	Ref<RenderBundleBase>* bundles =
	allocator->AllocateData<Ref<RenderBundleBase>>(count);
	for (uint32_t i = 0; i < count; ++i) {
	bundles[i] = renderBundles[i];

	const RenderPassResourceUsage& usages = bundles[i]->GetResourceUsage();
	for (uint32_t i = 0; i < usages.buffers.size(); ++i) {
	mUsageTracker.BufferUsedAs(usages.buffers[i], usages.bufferUsages[i]);
	}

	for (uint32_t i = 0; i < usages.textures.size(); ++i) {
	mUsageTracker.AddRenderBundleTextureUsage(usages.textures[i],
	usages.textureUsages[i]);
	}

	if (IsValidationEnabled()) {
	mIndirectDrawMetadata.AddBundle(renderBundles[i]);
	}
	}

	return {};
	},
	"encoding ExecuteBundles(%u, ...)", count);
	}

	void RenderPassEncoder::APIBeginOcclusionQuery(uint32_t queryIndex) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_INVALID_IF(mOcclusionQuerySet.Get() == nullptr,
	"The occlusionQuerySet in RenderPassDescriptor is not set.");

	// The type of querySet has been validated by ValidateRenderPassDescriptor

	DAWN_INVALID_IF(queryIndex >= mOcclusionQuerySet->GetQueryCount(),
	"Query index (%u) exceeds the number of queries (%u) in %s.",
	queryIndex, mOcclusionQuerySet->GetQueryCount(),
	mOcclusionQuerySet.Get());

	DAWN_INVALID_IF(mOcclusionQueryActive,
	"An occlusion query (%u) in %s is already active.",
	mCurrentOcclusionQueryIndex, mOcclusionQuerySet.Get());

	DAWN_TRY_CONTEXT(
	ValidateQueryIndexOverwrite(mOcclusionQuerySet.Get(), queryIndex,
	mUsageTracker.GetQueryAvailabilityMap()),
	"validating the occlusion query index (%u) in %s", queryIndex,
	mOcclusionQuerySet.Get());
	}

	// Record the current query index for endOcclusionQuery.
	mCurrentOcclusionQueryIndex = queryIndex;
	mOcclusionQueryActive = true;

	BeginOcclusionQueryCmd* cmd =
	allocator->Allocate<BeginOcclusionQueryCmd>(Command::BeginOcclusionQuery);
	cmd->querySet = mOcclusionQuerySet.Get();
	cmd->queryIndex = queryIndex;

	return {};
	},
	"encoding BeginOcclusionQuery(%u)", queryIndex);
	}

	void RenderPassEncoder::APIEndOcclusionQuery() {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_INVALID_IF(!mOcclusionQueryActive, "No occlusion queries are active.");
	}

	TrackQueryAvailability(mOcclusionQuerySet.Get(), mCurrentOcclusionQueryIndex);

	mOcclusionQueryActive = false;

	EndOcclusionQueryCmd* cmd =
	allocator->Allocate<EndOcclusionQueryCmd>(Command::EndOcclusionQuery);
	cmd->querySet = mOcclusionQuerySet.Get();
	cmd->queryIndex = mCurrentOcclusionQueryIndex;

	return {};
	},
	"encoding EndOcclusionQuery()");
	}

	void RenderPassEncoder::APIWriteTimestamp(QuerySetBase* querySet, uint32_t queryIndex) {
	mEncodingContext->TryEncode(
	this,
	[&](CommandAllocator* allocator) -> MaybeError {
	if (IsValidationEnabled()) {
	DAWN_TRY(GetDevice()->ValidateObject(querySet));
	DAWN_TRY(ValidateTimestampQuery(querySet, queryIndex));
	DAWN_TRY_CONTEXT(
	ValidateQueryIndexOverwrite(querySet, queryIndex,
	mUsageTracker.GetQueryAvailabilityMap()),
	"validating the timestamp query index (%u) of %s", queryIndex, querySet);
	}

	TrackQueryAvailability(querySet, queryIndex);

	WriteTimestampCmd* cmd =
	allocator->Allocate<WriteTimestampCmd>(Command::WriteTimestamp);
	cmd->querySet = querySet;
	cmd->queryIndex = queryIndex;

	return {};
	},
	"encoding WriteTimestamp(%s, %u).", querySet, queryIndex);
	}

	} // namespace dawn_native