704 lines
31 KiB
C++
704 lines
31 KiB
C++
//* Copyright 2017 The Dawn Authors
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//*
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//* Licensed under the Apache License, Version 2.0 (the "License");
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//* you may not use this file except in compliance with the License.
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//* You may obtain a copy of the License at
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//*
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//* http://www.apache.org/licenses/LICENSE-2.0
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//*
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//* Unless required by applicable law or agreed to in writing, software
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//* distributed under the License is distributed on an "AS IS" BASIS,
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//* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//* See the License for the specific language governing permissions and
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//* limitations under the License.
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#include "dawn_wire/WireCmd_autogen.h"
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#include "common/Assert.h"
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#include "common/Log.h"
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#include "dawn_wire/Wire.h"
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#include <algorithm>
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#include <cstring>
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#include <limits>
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//* Helper macros so that the main [de]serialization functions can be written in a generic manner.
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//* Outputs an rvalue that's the number of elements a pointer member points to.
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{% macro member_length(member, record_accessor) -%}
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{%- if member.length == "constant" -%}
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{{member.constant_length}}
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{%- else -%}
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{{record_accessor}}{{as_varName(member.length.name)}}
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{%- endif -%}
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{%- endmacro %}
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//* Outputs the type that will be used on the wire for the member
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{% macro member_transfer_type(member) -%}
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{%- if member.type.category == "object" -%}
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ObjectId
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{%- elif member.type.category == "structure" -%}
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{{as_cType(member.type.name)}}Transfer
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{%- elif member.type.category == "bitmask" -%}
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{{as_cType(member.type.name)}}Flags
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{%- else -%}
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{{as_cType(member.type.name)}}
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{%- endif -%}
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{%- endmacro %}
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//* Outputs the size of one element of the type that will be used on the wire for the member
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{% macro member_transfer_sizeof(member) -%}
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sizeof({{member_transfer_type(member)}})
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{%- endmacro %}
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//* Outputs the serialization code to put `in` in `out`
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{% macro serialize_member(member, in, out) %}
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{%- if member.type.category == "object" -%}
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{%- set Optional = "Optional" if member.optional else "" -%}
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{{out}} = provider.Get{{Optional}}Id({{in}});
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{% elif member.type.category == "structure"%}
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{%- set Provider = ", provider" if member.type.may_have_dawn_object else "" -%}
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{% if member.annotation == "const*const*" %}
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{{as_cType(member.type.name)}}Serialize(*{{in}}, &{{out}}, buffer{{Provider}});
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{% else %}
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{{as_cType(member.type.name)}}Serialize({{in}}, &{{out}}, buffer{{Provider}});
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{% endif %}
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{%- else -%}
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{{out}} = {{in}};
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{%- endif -%}
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{% endmacro %}
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//* Outputs the deserialization code to put `in` in `out`
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{% macro deserialize_member(member, in, out) %}
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{%- if member.type.category == "object" -%}
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{%- set Optional = "Optional" if member.optional else "" -%}
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DESERIALIZE_TRY(resolver.Get{{Optional}}FromId({{in}}, &{{out}}));
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{%- elif member.type.category == "structure" -%}
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DESERIALIZE_TRY({{as_cType(member.type.name)}}Deserialize(&{{out}}, &{{in}}, buffer, size, allocator
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{%- if member.type.may_have_dawn_object -%}
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, resolver
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{%- endif -%}
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));
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{%- else -%}
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{{out}} = {{in}};
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{%- endif -%}
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{% endmacro %}
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namespace {
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struct WGPUChainedStructTransfer {
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WGPUSType sType;
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bool hasNext;
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};
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} // anonymous namespace
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//* The main [de]serialization macro
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//* Methods are very similar to structures that have one member corresponding to each arguments.
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//* This macro takes advantage of the similarity to output [de]serialization code for a record
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//* that is either a structure or a method, with some special cases for each.
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{% macro write_record_serialization_helpers(record, name, members, is_cmd=False, is_return_command=False) %}
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{% set Return = "Return" if is_return_command else "" %}
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{% set Cmd = "Cmd" if is_cmd else "" %}
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{% set Inherits = " : CmdHeader" if is_cmd else "" %}
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//* Structure for the wire format of each of the records. Members that are values
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//* are embedded directly in the structure. Other members are assumed to be in the
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//* memory directly following the structure in the buffer.
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struct {{Return}}{{name}}Transfer{{Inherits}} {
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static_assert({{[is_cmd, record.extensible, record.chained].count(True)}} <= 1,
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"Record must be at most one of is_cmd, extensible, and chained.");
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{% if is_cmd %}
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//* Start the transfer structure with the command ID, so that casting to WireCmd gives the ID.
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{{Return}}WireCmd commandId;
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{% elif record.extensible %}
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bool hasNextInChain;
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{% elif record.chained %}
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WGPUChainedStructTransfer chain;
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{% endif %}
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//* Value types are directly in the command, objects being replaced with their IDs.
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{% for member in members if member.annotation == "value" %}
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{{member_transfer_type(member)}} {{as_varName(member.name)}};
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{% endfor %}
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//* const char* have their length embedded directly in the command.
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{% for member in members if member.length == "strlen" %}
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size_t {{as_varName(member.name)}}Strlen;
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{% endfor %}
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{% for member in members if member.optional and member.annotation != "value" and member.type.category != "object" %}
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bool has_{{as_varName(member.name)}};
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{% endfor %}
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};
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{% if is_cmd %}
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static_assert(offsetof({{Return}}{{name}}Transfer, commandSize) == 0, "");
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static_assert(offsetof({{Return}}{{name}}Transfer, commandId) == sizeof(CmdHeader), "");
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{% endif %}
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{% if record.chained %}
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static_assert(offsetof({{Return}}{{name}}Transfer, chain) == 0, "");
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{% endif %}
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//* Returns the required transfer size for `record` in addition to the transfer structure.
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DAWN_DECLARE_UNUSED size_t {{Return}}{{name}}GetExtraRequiredSize(const {{Return}}{{name}}{{Cmd}}& record) {
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DAWN_UNUSED(record);
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size_t result = 0;
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//* Gather how much space will be needed for the extension chain.
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{% if record.extensible %}
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if (record.nextInChain != nullptr) {
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result += GetChainedStructExtraRequiredSize(record.nextInChain);
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}
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{% endif %}
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//* Special handling of const char* that have their length embedded directly in the command
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{% for member in members if member.length == "strlen" %}
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{% set memberName = as_varName(member.name) %}
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{% if member.optional %}
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bool has_{{memberName}} = record.{{memberName}} != nullptr;
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if (has_{{memberName}})
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{% endif %}
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{
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result += std::strlen(record.{{memberName}});
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}
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{% endfor %}
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//* Gather how much space will be needed for pointer members.
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{% for member in members if member.length != "strlen" and not member.skip_serialize %}
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{% if member.type.category != "object" and member.optional %}
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if (record.{{as_varName(member.name)}} != nullptr)
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{% endif %}
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{
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{% if member.annotation != "value" %}
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size_t memberLength = {{member_length(member, "record.")}};
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result += memberLength * {{member_transfer_sizeof(member)}};
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//* Structures might contain more pointers so we need to add their extra size as well.
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{% if member.type.category == "structure" %}
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for (size_t i = 0; i < memberLength; ++i) {
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{% if member.annotation == "const*const*" %}
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result += {{as_cType(member.type.name)}}GetExtraRequiredSize(*record.{{as_varName(member.name)}}[i]);
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{% else %}
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{{assert(member.annotation == "const*")}}
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result += {{as_cType(member.type.name)}}GetExtraRequiredSize(record.{{as_varName(member.name)}}[i]);
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{% endif %}
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}
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{% endif %}
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{% elif member.type.category == "structure" %}
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result += {{as_cType(member.type.name)}}GetExtraRequiredSize(record.{{as_varName(member.name)}});
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{% endif %}
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}
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{% endfor %}
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return result;
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}
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// GetExtraRequiredSize isn't used for structures that are value members of other structures
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// because we assume they cannot contain pointers themselves.
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DAWN_UNUSED_FUNC({{Return}}{{name}}GetExtraRequiredSize);
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//* Serializes `record` into `transfer`, using `buffer` to get more space for pointed-to data
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//* and `provider` to serialize objects.
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DAWN_DECLARE_UNUSED void {{Return}}{{name}}Serialize(const {{Return}}{{name}}{{Cmd}}& record, {{Return}}{{name}}Transfer* transfer,
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char** buffer
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{%- if record.may_have_dawn_object -%}
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, const ObjectIdProvider& provider
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{%- endif -%}
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) {
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DAWN_UNUSED(buffer);
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//* Handle special transfer members of methods.
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{% if is_cmd %}
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transfer->commandId = {{Return}}WireCmd::{{name}};
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{% endif %}
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//* Value types are directly in the transfer record, objects being replaced with their IDs.
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{% for member in members if member.annotation == "value" %}
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{% set memberName = as_varName(member.name) %}
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{{serialize_member(member, "record." + memberName, "transfer->" + memberName)}}
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{% endfor %}
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{% if record.extensible %}
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if (record.nextInChain != nullptr) {
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transfer->hasNextInChain = true;
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SerializeChainedStruct(record.nextInChain, buffer, provider);
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} else {
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transfer->hasNextInChain = false;
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}
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{% endif %}
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{% if record.chained %}
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//* Should be set by the root descriptor's call to SerializeChainedStruct.
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ASSERT(transfer->chain.sType == {{as_cEnum(types["s type"].name, record.name)}});
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ASSERT(transfer->chain.hasNext == (record.chain.next != nullptr));
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{% endif %}
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//* Special handling of const char* that have their length embedded directly in the command
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{% for member in members if member.length == "strlen" %}
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{% set memberName = as_varName(member.name) %}
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{% if member.optional %}
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bool has_{{memberName}} = record.{{memberName}} != nullptr;
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transfer->has_{{memberName}} = has_{{memberName}};
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if (has_{{memberName}})
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{% endif %}
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{
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transfer->{{memberName}}Strlen = std::strlen(record.{{memberName}});
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memcpy(*buffer, record.{{memberName}}, transfer->{{memberName}}Strlen);
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*buffer += transfer->{{memberName}}Strlen;
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}
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{% endfor %}
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//* Allocate space and write the non-value arguments in it.
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{% for member in members if member.annotation != "value" and member.length != "strlen" and not member.skip_serialize %}
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{% set memberName = as_varName(member.name) %}
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{% if member.type.category != "object" and member.optional %}
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bool has_{{memberName}} = record.{{memberName}} != nullptr;
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transfer->has_{{memberName}} = has_{{memberName}};
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if (has_{{memberName}})
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{% endif %}
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{
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size_t memberLength = {{member_length(member, "record.")}};
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auto memberBuffer = reinterpret_cast<{{member_transfer_type(member)}}*>(*buffer);
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*buffer += memberLength * {{member_transfer_sizeof(member)}};
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for (size_t i = 0; i < memberLength; ++i) {
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{{serialize_member(member, "record." + memberName + "[i]", "memberBuffer[i]" )}}
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}
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}
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{% endfor %}
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}
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DAWN_UNUSED_FUNC({{Return}}{{name}}Serialize);
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//* Deserializes `transfer` into `record` getting more serialized data from `buffer` and `size`
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//* if needed, using `allocator` to store pointed-to values and `resolver` to translate object
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//* Ids to actual objects.
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DAWN_DECLARE_UNUSED DeserializeResult {{Return}}{{name}}Deserialize({{Return}}{{name}}{{Cmd}}* record, const volatile {{Return}}{{name}}Transfer* transfer,
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const volatile char** buffer, size_t* size, DeserializeAllocator* allocator
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{%- if record.may_have_dawn_object -%}
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, const ObjectIdResolver& resolver
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{%- endif -%}
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) {
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DAWN_UNUSED(allocator);
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DAWN_UNUSED(buffer);
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DAWN_UNUSED(size);
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{% if is_cmd %}
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ASSERT(transfer->commandId == {{Return}}WireCmd::{{name}});
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{% endif %}
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{% if record.derived_method %}
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record->selfId = transfer->self;
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{% endif %}
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//* Value types are directly in the transfer record, objects being replaced with their IDs.
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{% for member in members if member.annotation == "value" %}
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{% set memberName = as_varName(member.name) %}
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{{deserialize_member(member, "transfer->" + memberName, "record->" + memberName)}}
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{% endfor %}
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{% if record.extensible %}
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record->nextInChain = nullptr;
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if (transfer->hasNextInChain) {
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DESERIALIZE_TRY(DeserializeChainedStruct(&record->nextInChain, buffer, size, allocator, resolver));
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}
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{% endif %}
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{% if record.chained %}
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//* Should be set by the root descriptor's call to DeserializeChainedStruct.
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//* Don't check |record->chain.next| matches because it is not set until the
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//* next iteration inside DeserializeChainedStruct.
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ASSERT(record->chain.sType == {{as_cEnum(types["s type"].name, record.name)}});
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ASSERT(record->chain.next == nullptr);
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{% endif %}
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//* Special handling of const char* that have their length embedded directly in the command
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{% for member in members if member.length == "strlen" %}
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{% set memberName = as_varName(member.name) %}
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{% if member.optional %}
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bool has_{{memberName}} = transfer->has_{{memberName}};
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record->{{memberName}} = nullptr;
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if (has_{{memberName}})
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{% endif %}
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{
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size_t stringLength = transfer->{{memberName}}Strlen;
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const volatile char* stringInBuffer = nullptr;
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DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, stringLength, &stringInBuffer));
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char* copiedString = nullptr;
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DESERIALIZE_TRY(GetSpace(allocator, stringLength + 1, &copiedString));
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std::copy(stringInBuffer, stringInBuffer + stringLength, copiedString);
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copiedString[stringLength] = '\0';
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record->{{memberName}} = copiedString;
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}
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{% endfor %}
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//* Get extra buffer data, and copy pointed to values in extra allocated space.
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{% for member in members if member.annotation != "value" and member.length != "strlen" %}
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{% set memberName = as_varName(member.name) %}
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{% if member.type.category != "object" and member.optional %}
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bool has_{{memberName}} = transfer->has_{{memberName}};
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record->{{memberName}} = nullptr;
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if (has_{{memberName}})
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{% endif %}
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{
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size_t memberLength = {{member_length(member, "record->")}};
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auto memberBuffer = reinterpret_cast<const volatile {{member_transfer_type(member)}}*>(buffer);
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DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, memberLength, &memberBuffer));
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{{as_cType(member.type.name)}}* copiedMembers = nullptr;
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DESERIALIZE_TRY(GetSpace(allocator, memberLength, &copiedMembers));
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{% if member.annotation == "const*const*" %}
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{{as_cType(member.type.name)}}** pointerArray = nullptr;
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DESERIALIZE_TRY(GetSpace(allocator, memberLength, &pointerArray));
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for (size_t i = 0; i < memberLength; ++i) {
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pointerArray[i] = &copiedMembers[i];
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}
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record->{{memberName}} = pointerArray;
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{% else %}
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record->{{memberName}} = copiedMembers;
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{% endif %}
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for (size_t i = 0; i < memberLength; ++i) {
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{{deserialize_member(member, "memberBuffer[i]", "copiedMembers[i]")}}
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}
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}
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{% endfor %}
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return DeserializeResult::Success;
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}
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DAWN_UNUSED_FUNC({{Return}}{{name}}Deserialize);
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{% endmacro %}
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{% macro write_command_serialization_methods(command, is_return) %}
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{% set Return = "Return" if is_return else "" %}
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{% set Name = Return + command.name.CamelCase() %}
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{% set Cmd = Name + "Cmd" %}
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size_t {{Cmd}}::GetRequiredSize() const {
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size_t size = sizeof({{Name}}Transfer) + {{Name}}GetExtraRequiredSize(*this);
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return size;
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}
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void {{Cmd}}::Serialize(size_t commandSize, char* buffer
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{%- if not is_return -%}
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, const ObjectIdProvider& objectIdProvider
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{%- endif -%}
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) const {
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auto transfer = reinterpret_cast<{{Name}}Transfer*>(buffer);
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transfer->commandSize = commandSize;
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buffer += sizeof({{Name}}Transfer);
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{{Name}}Serialize(*this, transfer, &buffer
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{%- if command.may_have_dawn_object -%}
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, objectIdProvider
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{%- endif -%}
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);
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}
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DeserializeResult {{Cmd}}::Deserialize(const volatile char** buffer, size_t* size, DeserializeAllocator* allocator
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{%- if command.may_have_dawn_object -%}
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, const ObjectIdResolver& resolver
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{%- endif -%}
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) {
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const volatile {{Name}}Transfer* transfer = nullptr;
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DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, 1, &transfer));
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return {{Name}}Deserialize(this, transfer, buffer, size, allocator
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{%- if command.may_have_dawn_object -%}
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, resolver
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{%- endif -%}
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);
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}
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{% endmacro %}
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namespace dawn_wire {
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// Macro to simplify error handling, similar to DAWN_TRY but for DeserializeResult.
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#define DESERIALIZE_TRY(EXPR) \
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do { \
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DeserializeResult exprResult = EXPR; \
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if (exprResult != DeserializeResult::Success) { \
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return exprResult; \
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} \
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} while (0)
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ObjectHandle::ObjectHandle() = default;
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ObjectHandle::ObjectHandle(ObjectId id, ObjectGeneration generation)
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: id(id), generation(generation) {
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}
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ObjectHandle::ObjectHandle(const volatile ObjectHandle& rhs)
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: id(rhs.id), generation(rhs.generation) {
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}
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ObjectHandle& ObjectHandle::operator=(const volatile ObjectHandle& rhs) {
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id = rhs.id;
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generation = rhs.generation;
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return *this;
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}
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ObjectHandle& ObjectHandle::AssignFrom(const ObjectHandle& rhs) {
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id = rhs.id;
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generation = rhs.generation;
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return *this;
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}
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ObjectHandle& ObjectHandle::AssignFrom(const volatile ObjectHandle& rhs) {
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id = rhs.id;
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generation = rhs.generation;
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return *this;
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}
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namespace {
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// Consumes from (buffer, size) enough memory to contain T[count] and return it in data.
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// Returns FatalError if not enough memory was available
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template <typename T>
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DeserializeResult GetPtrFromBuffer(const volatile char** buffer, size_t* size, size_t count, const volatile T** data) {
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constexpr size_t kMaxCountWithoutOverflows = std::numeric_limits<size_t>::max() / sizeof(T);
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if (count > kMaxCountWithoutOverflows) {
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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).
|
|
result += sizeof(WGPUChainedStructTransfer);
|
|
chainedStruct = chainedStruct->next;
|
|
break;
|
|
}
|
|
}
|
|
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.
|
|
if (chainedStruct->sType != WGPUSType_Invalid) {
|
|
dawn::WarningLog() << "Unknown sType " << chainedStruct->sType << " discarded.";
|
|
}
|
|
|
|
WGPUChainedStructTransfer* transfer = reinterpret_cast<WGPUChainedStructTransfer*>(*buffer);
|
|
transfer->sType = WGPUSType_Invalid;
|
|
transfer->hasNext = chainedStruct->next != nullptr;
|
|
|
|
*buffer += sizeof(WGPUChainedStructTransfer);
|
|
|
|
// Still move on in case there are valid structs after this.
|
|
chainedStruct = chainedStruct->next;
|
|
break;
|
|
}
|
|
}
|
|
} 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: {
|
|
// Invalid enum. Deserialize just the transfer header with Invalid as the sType.
|
|
// TODO(crbug.com/dawn/369): Unknown sTypes are silently discarded.
|
|
if (sType != WGPUSType_Invalid) {
|
|
dawn::WarningLog() << "Unknown sType " << sType << " discarded.";
|
|
}
|
|
|
|
const volatile WGPUChainedStructTransfer* transfer = nullptr;
|
|
DESERIALIZE_TRY(GetPtrFromBuffer(buffer, size, 1, &transfer));
|
|
|
|
WGPUChainedStruct* outStruct = nullptr;
|
|
DESERIALIZE_TRY(GetSpace(allocator, sizeof(WGPUChainedStruct), &outStruct));
|
|
outStruct->sType = WGPUSType_Invalid;
|
|
outStruct->next = nullptr;
|
|
|
|
// Still move on in case there are valid structs after this.
|
|
*outChainNext = outStruct;
|
|
outChainNext = &outStruct->next;
|
|
hasNext = transfer->hasNext;
|
|
break;
|
|
}
|
|
}
|
|
} 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
|