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//* Copyright 2017 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_wire/WireCmd_autogen.h"
#include "common/Assert.h"
#include "dawn_wire/Wire.h"
#include <algorithm>
#include <cstring>
#include <limits>
//* Helper macros so that the main [de]serialization functions can be written in a generic manner.
//* Outputs an rvalue that's the number of elements a pointer member points to.
{% macro member_length(member, record_accessor) -%}
{%- if member.length == "constant" -%}
{{member.constant_length}}
{%- else -%}
{{record_accessor}}{{as_varName(member.length.name)}}
{%- endif -%}
{%- endmacro %}
//* Outputs the type that will be used on the wire for the member
{% macro member_transfer_type(member) -%}
{%- if member.type.category == "object" -%}
ObjectId
{%- elif member.type.category == "structure" -%}
{{as_cType(member.type.name)}}Transfer
{%- elif member.type.category == "bitmask" -%}
{{as_cType(member.type.name)}}Flags
{%- else -%}
{{as_cType(member.type.name)}}
{%- endif -%}
{%- endmacro %}
//* Outputs the size of one element of the type that will be used on the wire for the member
{% macro member_transfer_sizeof(member) -%}
sizeof({{member_transfer_type(member)}})
{%- endmacro %}
//* Outputs the serialization code to put `in` in `out`
{% macro serialize_member(member, in, out) %}
{%- if member.type.category == "object" -%}
{%- set Optional = "Optional" if member.optional else "" -%}
{{out}} = provider.Get{{Optional}}Id({{in}});
{% elif member.type.category == "structure"%}
{%- set Provider = ", provider" if member.type.may_have_dawn_object else "" -%}
{% if member.annotation == "const*const*" %}
{{as_cType(member.type.name)}}Serialize(*{{in}}, &{{out}}, buffer{{Provider}});
{% else %}
{{as_cType(member.type.name)}}Serialize({{in}}, &{{out}}, buffer{{Provider}});
{% endif %}
{%- else -%}
{{out}} = {{in}};
{%- endif -%}
{% endmacro %}
//* Outputs the deserialization code to put `in` in `out`
{% macro deserialize_member(member, in, out) %}
{%- if member.type.category == "object" -%}
{%- set Optional = "Optional" if member.optional else "" -%}
DESERIALIZE_TRY(resolver.Get{{Optional}}FromId({{in}}, &{{out}}));
{%- elif member.type.category == "structure" -%}
DESERIALIZE_TRY({{as_cType(member.type.name)}}Deserialize(&{{out}}, &{{in}}, buffer, size, allocator
{%- if member.type.may_have_dawn_object -%}
, resolver
{%- endif -%}
));
{%- else -%}
{{out}} = {{in}};
{%- endif -%}
{% endmacro %}
namespace {
struct WGPUChainedStructTransfer {
WGPUSType sType;
bool hasNext;
};
} // anonymous namespace
//* The main [de]serialization macro
//* Methods are very similar to structures that have one member corresponding to each arguments.
//* This macro takes advantage of the similarity to output [de]serialization code for a record
//* that is either a structure or a method, with some special cases for each.
{% macro write_record_serialization_helpers(record, name, members, is_cmd=False, is_return_command=False) %}
{% set Return = "Return" if is_return_command else "" %}
{% set Cmd = "Cmd" if is_cmd else "" %}
{% set Inherits = " : CmdHeader" if is_cmd else "" %}
//* Structure for the wire format of each of the records. Members that are values
//* are embedded directly in the structure. Other members are assumed to be in the
//* memory directly following the structure in the buffer.
struct {{Return}}{{name}}Transfer{{Inherits}} {
static_assert({{[is_cmd, record.extensible, record.chained].count(True)}} <= 1,
"Record must be at most one of is_cmd, extensible, and chained.");
{% if is_cmd %}
//* Start the transfer structure with the command ID, so that casting to WireCmd gives the ID.
{{Return}}WireCmd commandId;
{% elif record.extensible %}
bool hasNextInChain;
{% elif record.chained %}
WGPUChainedStructTransfer chain;
{% endif %}
//* Value types are directly in the command, objects being replaced with their IDs.
{% for member in members if member.annotation == "value" %}
{{member_transfer_type(member)}} {{as_varName(member.name)}};
{% endfor %}
//* const char* have their length embedded directly in the command.
{% for member in members if member.length == "strlen" %}
size_t {{as_varName(member.name)}}Strlen;
{% endfor %}
{% for member in members if member.optional and member.annotation != "value" and member.type.category != "object" %}
bool has_{{as_varName(member.name)}};
{% endfor %}
};
{% if is_cmd %}
static_assert(offsetof({{Return}}{{name}}Transfer, commandSize) == 0, "");
static_assert(offsetof({{Return}}{{name}}Transfer, commandId) == sizeof(CmdHeader), "");
{% endif %}
{% if record.chained %}
static_assert(offsetof({{Return}}{{name}}Transfer, chain) == 0, "");
{% endif %}
//* Returns the required transfer size for `record` in addition to the transfer structure.
DAWN_DECLARE_UNUSED size_t {{Return}}{{name}}GetExtraRequiredSize(const {{Return}}{{name}}{{Cmd}}& record) {
DAWN_UNUSED(record);
size_t result = 0;
//* Gather how much space will be needed for the extension chain.
{% if record.extensible %}
if (record.nextInChain != nullptr) {
result += GetChainedStructExtraRequiredSize(record.nextInChain);
}
{% endif %}
//* Special handling of const char* that have their length embedded directly in the command
{% for member in members if member.length == "strlen" %}
{% set memberName = as_varName(member.name) %}
{% if member.optional %}
bool has_{{memberName}} = record.{{memberName}} != nullptr;
if (has_{{memberName}})
{% endif %}
{
result += std::strlen(record.{{memberName}});
}
{% endfor %}
//* Gather how much space will be needed for pointer members.
{% for member in members if member.length != "strlen" and not member.skip_serialize %}
{% if member.type.category != "object" and member.optional %}
if (record.{{as_varName(member.name)}} != nullptr)
{% endif %}
{
{% if member.annotation != "value" %}
size_t memberLength = {{member_length(member, "record.")}};
result += memberLength * {{member_transfer_sizeof(member)}};
//* Structures might contain more pointers so we need to add their extra size as well.
{% if member.type.category == "structure" %}
for (size_t i = 0; i < memberLength; ++i) {
{% if member.annotation == "const*const*" %}
result += {{as_cType(member.type.name)}}GetExtraRequiredSize(*record.{{as_varName(member.name)}}[i]);
{% else %}
{{assert(member.annotation == "const*")}}
result += {{as_cType(member.type.name)}}GetExtraRequiredSize(record.{{as_varName(member.name)}}[i]);
{% endif %}
}
{% endif %}
{% elif member.type.category == "structure" %}
result += {{as_cType(member.type.name)}}GetExtraRequiredSize(record.{{as_varName(member.name)}});
{% endif %}
}
{% endfor %}
return result;
}
// GetExtraRequiredSize isn't used for structures that are value members of other structures
// because we assume they cannot contain pointers themselves.
DAWN_UNUSED_FUNC({{Return}}{{name}}GetExtraRequiredSize);
//* Serializes `record` into `transfer`, using `buffer` to get more space for pointed-to data
//* and `provider` to serialize objects.
DAWN_DECLARE_UNUSED void {{Return}}{{name}}Serialize(const {{Return}}{{name}}{{Cmd}}& record, {{Return}}{{name}}Transfer* transfer,
char** buffer
{%- if record.may_have_dawn_object -%}
, const ObjectIdProvider& provider
{%- endif -%}
) {
DAWN_UNUSED(buffer);
//* Handle special transfer members of methods.
{% if is_cmd %}
transfer->commandId = {{Return}}WireCmd::{{name}};
{% endif %}
//* Value types are directly in the transfer record, objects being replaced with their IDs.
{% for member in members if member.annotation == "value" %}
{% set memberName = as_varName(member.name) %}
{{serialize_member(member, "record." + memberName, "transfer->" + memberName)}}
{% endfor %}
{% if record.extensible %}
if (record.nextInChain != nullptr) {
transfer->hasNextInChain = true;
SerializeChainedStruct(record.nextInChain, buffer, provider);
} else {
transfer->hasNextInChain = false;
}
{% endif %}
{% if record.chained %}
//* Should be set by the root descriptor's call to SerializeChainedStruct.
ASSERT(transfer->chain.sType == {{as_cEnum(types["s type"].name, record.name)}});
ASSERT(transfer->chain.hasNext == (record.chain.next != nullptr));
{% endif %}
//* Special handling of const char* that have their length embedded directly in the command
{% for member in members if member.length == "strlen" %}
{% set memberName = as_varName(member.name) %}
{% if member.optional %}
bool has_{{memberName}} = record.{{memberName}} != nullptr;
transfer->has_{{memberName}} = has_{{memberName}};
if (has_{{memberName}})
{% endif %}
{
transfer->{{memberName}}Strlen = std::strlen(record.{{memberName}});
memcpy(*buffer, record.{{memberName}}, transfer->{{memberName}}Strlen);
*buffer += transfer->{{memberName}}Strlen;
}
{% endfor %}
//* Allocate space and write the non-value arguments in it.
{% for member in members if member.annotation != "value" and member.length != "strlen" and not member.skip_serialize %}
{% set memberName = as_varName(member.name) %}
{% if member.type.category != "object" and member.optional %}
bool has_{{memberName}} = record.{{memberName}} != nullptr;
transfer->has_{{memberName}} = has_{{memberName}};
if (has_{{memberName}})
{% endif %}
{
size_t memberLength = {{member_length(member, "record.")}};
auto memberBuffer = reinterpret_cast<{{member_transfer_type(member)}}*>(*buffer);
*buffer += memberLength * {{member_transfer_sizeof(member)}};
for (size_t i = 0; i < memberLength; ++i) {
{{serialize_member(member, "record." + memberName + "[i]", "memberBuffer[i]" )}}
}
}
{% endfor %}
}
DAWN_UNUSED_FUNC({{Return}}{{name}}Serialize);
//* Deserializes `transfer` into `record` getting more serialized data from `buffer` and `size`
//* if needed, using `allocator` to store pointed-to values and `resolver` to translate object
//* Ids to actual objects.
DAWN_DECLARE_UNUSED DeserializeResult {{Return}}{{name}}Deserialize({{Return}}{{name}}{{Cmd}}* record, const volatile {{Return}}{{name}}Transfer* transfer,
const volatile char** buffer, size_t* size, DeserializeAllocator* allocator
{%- if record.may_have_dawn_object -%}
, const ObjectIdResolver& resolver
{%- endif -%}
) {
DAWN_UNUSED(allocator);
DAWN_UNUSED(buffer);
DAWN_UNUSED(size);
{% if is_cmd %}
ASSERT(transfer->commandId == {{Return}}WireCmd::{{name}});
{% endif %}
{% if record.derived_method %}
record->selfId = transfer->self;
{% endif %}
//* Value types are directly in the transfer record, objects being replaced with their IDs.
{% for member in members if member.annotation == "value" %}
{% set memberName = as_varName(member.name) %}
{{deserialize_member(member, "transfer->" + memberName, "record->" + memberName)}}
{% endfor %}
{% if record.extensible %}
record->nextInChain = nullptr;
if (transfer->hasNextInChain) {
DESERIALIZE_TRY(DeserializeChainedStruct(&record->nextInChain, buffer, size, allocator, resolver));
}
{% endif %}
{% if record.chained %}
//* Should be set by the root descriptor's call to DeserializeChainedStruct.
//* Don't check |record->chain.next| matches because it is not set until the
//* next iteration inside DeserializeChainedStruct.
ASSERT(record->chain.sType == {{as_cEnum(types["s type"].name, record.name)}});
ASSERT(record->chain.next == nullptr);
{% endif %}
//* Special handling of const char* that have their length embedded directly in the command
{% for member in members if member.length == "strlen" %}
{% set memberName = as_varName(member.name) %}
{% if member.optional %}
bool has_{{memberName}} = transfer->has_{{memberName}};
record->{{memberName}} = nullptr;
if (has_{{memberName}})
{% endif %}
{
size_t stringLength = transfer->{{memberName}}Strlen;
const volatile char* stringInBuffer = nullptr;
DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, stringLength, &stringInBuffer));
char* copiedString = nullptr;
DESERIALIZE_TRY(GetSpace(allocator, stringLength + 1, &copiedString));
std::copy(stringInBuffer, stringInBuffer + stringLength, copiedString);
copiedString[stringLength] = '\0';
record->{{memberName}} = copiedString;
}
{% endfor %}
//* Get extra buffer data, and copy pointed to values in extra allocated space.
{% for member in members if member.annotation != "value" and member.length != "strlen" %}
{% set memberName = as_varName(member.name) %}
{% if member.type.category != "object" and member.optional %}
bool has_{{memberName}} = transfer->has_{{memberName}};
record->{{memberName}} = nullptr;
if (has_{{memberName}})
{% endif %}
{
size_t memberLength = {{member_length(member, "record->")}};
auto memberBuffer = reinterpret_cast<const volatile {{member_transfer_type(member)}}*>(buffer);
DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, memberLength, &memberBuffer));
{{as_cType(member.type.name)}}* copiedMembers = nullptr;
DESERIALIZE_TRY(GetSpace(allocator, memberLength, &copiedMembers));
{% if member.annotation == "const*const*" %}
{{as_cType(member.type.name)}}** pointerArray = nullptr;
DESERIALIZE_TRY(GetSpace(allocator, memberLength, &pointerArray));
for (size_t i = 0; i < memberLength; ++i) {
pointerArray[i] = &copiedMembers[i];
}
record->{{memberName}} = pointerArray;
{% else %}
record->{{memberName}} = copiedMembers;
{% endif %}
for (size_t i = 0; i < memberLength; ++i) {
{{deserialize_member(member, "memberBuffer[i]", "copiedMembers[i]")}}
}
}
{% endfor %}
return DeserializeResult::Success;
}
DAWN_UNUSED_FUNC({{Return}}{{name}}Deserialize);
{% endmacro %}
{% macro write_command_serialization_methods(command, is_return) %}
{% set Return = "Return" if is_return else "" %}
{% set Name = Return + command.name.CamelCase() %}
{% set Cmd = Name + "Cmd" %}
size_t {{Cmd}}::GetRequiredSize() const {
size_t size = sizeof({{Name}}Transfer) + {{Name}}GetExtraRequiredSize(*this);
return size;
}
void {{Cmd}}::Serialize(size_t commandSize, char* buffer
{%- if not is_return -%}
, const ObjectIdProvider& objectIdProvider
{%- endif -%}
) const {
auto transfer = reinterpret_cast<{{Name}}Transfer*>(buffer);
transfer->commandSize = commandSize;
buffer += sizeof({{Name}}Transfer);
{{Name}}Serialize(*this, transfer, &buffer
{%- if command.may_have_dawn_object -%}
, objectIdProvider
{%- endif -%}
);
}
DeserializeResult {{Cmd}}::Deserialize(const volatile char** buffer, size_t* size, DeserializeAllocator* allocator
{%- if command.may_have_dawn_object -%}
, const ObjectIdResolver& resolver
{%- endif -%}
) {
const volatile {{Name}}Transfer* transfer = nullptr;
DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, 1, &transfer));
return {{Name}}Deserialize(this, transfer, buffer, size, allocator
{%- if command.may_have_dawn_object -%}
, resolver
{%- endif -%}
);
}
{% endmacro %}
namespace dawn_wire {
// Macro to simplify error handling, similar to DAWN_TRY but for DeserializeResult.
#define DESERIALIZE_TRY(EXPR) \
do { \
DeserializeResult exprResult = EXPR; \
if (exprResult != DeserializeResult::Success) { \
return exprResult; \
} \
} while (0)
ObjectHandle::ObjectHandle() = default;
ObjectHandle::ObjectHandle(ObjectId id, ObjectGeneration generation)
: id(id), generation(generation) {
}
ObjectHandle::ObjectHandle(const volatile ObjectHandle& rhs)
: id(rhs.id), generation(rhs.generation) {
}
ObjectHandle& ObjectHandle::operator=(const volatile ObjectHandle& rhs) {
id = rhs.id;
generation = rhs.generation;
return *this;
}
ObjectHandle& ObjectHandle::AssignFrom(const ObjectHandle& rhs) {
id = rhs.id;
generation = rhs.generation;
return *this;
}
ObjectHandle& ObjectHandle::AssignFrom(const volatile ObjectHandle& rhs) {
id = rhs.id;
generation = rhs.generation;
return *this;
}
namespace {
// Consumes from (buffer, size) enough memory to contain T[count] and return it in data.
// Returns FatalError if not enough memory was available
template <typename T>
DeserializeResult GetPtrFromBuffer(const volatile char** buffer, size_t* size, size_t count, const volatile T** data) {
constexpr size_t kMaxCountWithoutOverflows = std::numeric_limits<size_t>::max() / sizeof(T);
if (count > kMaxCountWithoutOverflows) {
return DeserializeResult::FatalError;
}
size_t totalSize = sizeof(T) * count;
if (totalSize > *size) {
return DeserializeResult::FatalError;
}
*data = reinterpret_cast<const volatile T*>(*buffer);
*buffer += totalSize;
*size -= totalSize;
return DeserializeResult::Success;
}
// Allocates enough space from allocator to countain T[count] and return it in out.
// Return FatalError if the allocator couldn't allocate the memory.
template <typename T>
DeserializeResult GetSpace(DeserializeAllocator* allocator, size_t count, T** out) {
constexpr size_t kMaxCountWithoutOverflows = std::numeric_limits<size_t>::max() / sizeof(T);
if (count > kMaxCountWithoutOverflows) {
return DeserializeResult::FatalError;
}
size_t totalSize = sizeof(T) * count;
*out = static_cast<T*>(allocator->GetSpace(totalSize));
if (*out == nullptr) {
return DeserializeResult::FatalError;
}
return DeserializeResult::Success;
}
size_t GetChainedStructExtraRequiredSize(const WGPUChainedStruct* chainedStruct);
void SerializeChainedStruct(WGPUChainedStruct const* chainedStruct,
char** buffer,
const ObjectIdProvider& provider);
DeserializeResult DeserializeChainedStruct(const WGPUChainedStruct** outChainNext,
const volatile char** buffer,
size_t* size,
DeserializeAllocator* allocator,
const ObjectIdResolver& resolver);
//* Output structure [de]serialization first because it is used by commands.
{% for type in by_category["structure"] %}
{% set name = as_cType(type.name) %}
{% if type.name.CamelCase() not in client_side_structures %}
{{write_record_serialization_helpers(type, name, type.members,
is_cmd=False)}}
{% endif %}
{% endfor %}
size_t GetChainedStructExtraRequiredSize(const WGPUChainedStruct* chainedStruct) {
ASSERT(chainedStruct != nullptr);
size_t result = 0;
while (chainedStruct != nullptr) {
switch (chainedStruct->sType) {
{% for sType in types["s type"].values if sType.valid and sType.name.CamelCase() not in client_side_structures %}
case {{as_cEnum(types["s type"].name, sType.name)}}: {
const auto& typedStruct = *reinterpret_cast<{{as_cType(sType.name)}} const *>(chainedStruct);
result += sizeof({{as_cType(sType.name)}}Transfer);
result += {{as_cType(sType.name)}}GetExtraRequiredSize(typedStruct);
chainedStruct = typedStruct.chain.next;
break;
}
{% endfor %}
default:
// Invalid enum. Reserve space just for the transfer header (sType and hasNext).
// Stop iterating because this is an error.
// TODO(crbug.com/dawn/369): Unknown sTypes are silently discarded.
ASSERT(chainedStruct->sType == WGPUSType_Invalid);
result += sizeof(WGPUChainedStructTransfer);
return result;
}
}
return result;
}
void SerializeChainedStruct(WGPUChainedStruct const* chainedStruct,
char** buffer,
const ObjectIdProvider& provider) {
ASSERT(chainedStruct != nullptr);
ASSERT(buffer != nullptr);
do {
switch (chainedStruct->sType) {
{% for sType in types["s type"].values if sType.valid and sType.name.CamelCase() not in client_side_structures %}
{% set CType = as_cType(sType.name) %}
case {{as_cEnum(types["s type"].name, sType.name)}}: {
auto* transfer = reinterpret_cast<{{CType}}Transfer*>(*buffer);
transfer->chain.sType = chainedStruct->sType;
transfer->chain.hasNext = chainedStruct->next != nullptr;
*buffer += sizeof({{CType}}Transfer);
{{CType}}Serialize(*reinterpret_cast<{{CType}} const*>(chainedStruct), transfer, buffer
{%- if types[sType.name.get()].may_have_dawn_object -%}
, provider
{%- endif -%}
);
chainedStruct = chainedStruct->next;
} break;
{% endfor %}
default: {
// Invalid enum. Serialize just the transfer header with Invalid as the sType.
// TODO(crbug.com/dawn/369): Unknown sTypes are silently discarded.
ASSERT(chainedStruct->sType == WGPUSType_Invalid);
WGPUChainedStructTransfer* transfer = reinterpret_cast<WGPUChainedStructTransfer*>(*buffer);
transfer->sType = WGPUSType_Invalid;
transfer->hasNext = false;
*buffer += sizeof(WGPUChainedStructTransfer);
return;
}
}
} while (chainedStruct != nullptr);
}
DeserializeResult DeserializeChainedStruct(const WGPUChainedStruct** outChainNext,
const volatile char** buffer,
size_t* size,
DeserializeAllocator* allocator,
const ObjectIdResolver& resolver) {
bool hasNext;
do {
if (*size < sizeof(WGPUChainedStructTransfer)) {
return DeserializeResult::FatalError;
}
WGPUSType sType =
reinterpret_cast<const volatile WGPUChainedStructTransfer*>(*buffer)->sType;
switch (sType) {
{% for sType in types["s type"].values if sType.valid and sType.name.CamelCase() not in client_side_structures %}
{% set CType = as_cType(sType.name) %}
case {{as_cEnum(types["s type"].name, sType.name)}}: {
const volatile {{CType}}Transfer* transfer = nullptr;
DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, 1, &transfer));
{{CType}}* outStruct = nullptr;
DESERIALIZE_TRY(GetSpace(allocator, sizeof({{CType}}), &outStruct));
outStruct->chain.sType = sType;
outStruct->chain.next = nullptr;
*outChainNext = &outStruct->chain;
outChainNext = &outStruct->chain.next;
DESERIALIZE_TRY({{CType}}Deserialize(outStruct, transfer, buffer, size, allocator
{%- if types[sType.name.get()].may_have_dawn_object -%}
, resolver
{%- endif -%}
));
hasNext = transfer->chain.hasNext;
} break;
{% endfor %}
default:
return DeserializeResult::FatalError;
}
} while (hasNext);
return DeserializeResult::Success;
}
//* Output [de]serialization helpers for commands
{% for command in cmd_records["command"] %}
{% set name = command.name.CamelCase() %}
{{write_record_serialization_helpers(command, name, command.members,
is_cmd=True)}}
{% endfor %}
//* Output [de]serialization helpers for return commands
{% for command in cmd_records["return command"] %}
{% set name = command.name.CamelCase() %}
{{write_record_serialization_helpers(command, name, command.members,
is_cmd=True, is_return_command=True)}}
{% endfor %}
} // anonymous namespace
{% for command in cmd_records["command"] %}
{{ write_command_serialization_methods(command, False) }}
{% endfor %}
{% for command in cmd_records["return command"] %}
{{ write_command_serialization_methods(command, True) }}
{% endfor %}
// Implementations of serialization/deserialization of WPGUDeviceProperties.
size_t SerializedWGPUDevicePropertiesSize(const WGPUDeviceProperties* deviceProperties) {
return sizeof(WGPUDeviceProperties) +
WGPUDevicePropertiesGetExtraRequiredSize(*deviceProperties);
}
void SerializeWGPUDeviceProperties(const WGPUDeviceProperties* deviceProperties,
char* serializeBuffer) {
size_t devicePropertiesSize = SerializedWGPUDevicePropertiesSize(deviceProperties);
WGPUDevicePropertiesTransfer* transfer =
reinterpret_cast<WGPUDevicePropertiesTransfer*>(serializeBuffer);
serializeBuffer += devicePropertiesSize;
WGPUDevicePropertiesSerialize(*deviceProperties, transfer, &serializeBuffer);
}
bool DeserializeWGPUDeviceProperties(WGPUDeviceProperties* deviceProperties,
const volatile char* deserializeBuffer) {
size_t devicePropertiesSize = SerializedWGPUDevicePropertiesSize(deviceProperties);
const volatile WGPUDevicePropertiesTransfer* transfer = nullptr;
if (GetPtrFromBuffer(&deserializeBuffer, &devicePropertiesSize, 1, &transfer) !=
DeserializeResult::Success) {
return false;
}
return WGPUDevicePropertiesDeserialize(deviceProperties, transfer, &deserializeBuffer,
&devicePropertiesSize,
nullptr) == DeserializeResult::Success;
}
} // namespace dawn_wire