69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
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//* Copyright 2022 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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{% set impl_dir = metadata.impl_dir + "/" if metadata.impl_dir else "" %}
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{% set namespace_name = Name(metadata.native_namespace) %}
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{% set native_namespace = namespace_name.namespace_case() %}
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{% set native_dir = impl_dir + namespace_name.Dirs() %}
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{% set prefix = metadata.proc_table_prefix.lower() %}
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#include "{{native_dir}}/CacheKey.h"
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#include "{{native_dir}}/{{prefix}}_platform.h"
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#include <cstring>
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namespace {{native_namespace}} {
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//
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// Cache key serializers for wgpu structures used in caching.
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//
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{% macro render_serializer(member) %}
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{%- set name = member.name.camelCase() -%}
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{% if member.length == None %}
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key->Record(t.{{name}});
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{% elif member.length == "strlen" %}
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key->RecordIterable(t.{{name}}, strlen(t.{{name}}));
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{% else %}
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key->RecordIterable(t.{{name}}, t.{{member.length.name.camelCase()}});
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{% endif %}
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{% endmacro %}
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{# Helper macro to render serializers. Should be used in a call block to provide additional custom
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handling when necessary. The optional `omit` field can be used to omit fields that are either
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handled in the custom code, or unnecessary in the serialized output.
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Example:
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{% call render_cache_key_serializer("struct name", omits=["omit field"]) %}
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// Custom C++ code to handle special types/members that are hard to generate code for
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{% endcall %}
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#}
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{% macro render_cache_key_serializer(json_type, omits=[]) %}
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{%- set cpp_type = types[json_type].name.CamelCase() -%}
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template <>
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void CacheKeySerializer<{{cpp_type}}>::Serialize(CacheKey* key, const {{cpp_type}}& t) {
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{{ caller() }}
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{% for member in types[json_type].members %}
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{%- if not member.name.get() in omits %}
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{{render_serializer(member)}}
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{%- endif %}
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{% endfor %}
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}
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{% endmacro %}
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{% call render_cache_key_serializer("adapter properties") %}
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{% endcall %}
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{% call render_cache_key_serializer("dawn cache device descriptor") %}
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{% endcall %}
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} // namespace {{native_namespace}}
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