dawn-cmake/generator/templates/dawn_native/wgpu_structs.h

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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.
#ifndef DAWNNATIVE_WGPU_STRUCTS_H_
#define DAWNNATIVE_WGPU_STRUCTS_H_
#include "dawn/webgpu_cpp.h"
#include "dawn_native/Forward.h"
namespace dawn_native {
{% macro render_cpp_default_value(member) -%}
{%- if member.annotation in ["*", "const*", "const*const*"] and member.optional -%}
{{" "}}= nullptr
{%- elif member.type.category == "object" and member.optional -%}
{{" "}}= nullptr
{%- elif member.type.category in ["enum", "bitmask"] and member.default_value != None -%}
{{" "}}= wgpu::{{as_cppType(member.type.name)}}::{{as_cppEnum(Name(member.default_value))}}
{%- elif member.type.category == "native" and member.default_value != None -%}
{{" "}}= {{member.default_value}}
{%- else -%}
{{assert(member.default_value == None)}}
{%- endif -%}
{%- endmacro %}
struct ChainedStruct {
ChainedStruct const * nextInChain = nullptr;
wgpu::SType sType = wgpu::SType::Invalid;
};
{% for type in by_category["structure"] %}
{% if type.chained %}
struct {{as_cppType(type.name)}} : ChainedStruct {
{{as_cppType(type.name)}}() {
sType = wgpu::SType::{{type.name.CamelCase()}};
}
{% else %}
struct {{as_cppType(type.name)}} {
{% endif %}
{% if type.extensible %}
ChainedStruct const * nextInChain = nullptr;
{% endif %}
{% for member in type.members %}
{% set member_declaration = as_annotated_frontendType(member) + render_cpp_default_value(member) %}
{% if type.chained and loop.first %}
//* Align the first member to ChainedStruct to match the C struct layout.
alignas(ChainedStruct) {{member_declaration}};
{% else %}
{{member_declaration}};
{% endif %}
{% endfor %}
};
{% endfor %}
{% for typeDef in by_category["typedef"] %}
using {{as_cppType(typeDef.name)}} = {{as_cppType(typeDef.type.name)}};
{% endfor %}
} // namespace dawn_native
#endif // DAWNNATIVE_WGPU_STRUCTS_H_