168 lines
5.3 KiB
C++
168 lines
5.3 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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#ifndef DAWN_DAWNCPP_H_
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#define DAWN_DAWNCPP_H_
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#include "dawn/dawn.h"
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#include "dawn/dawn_export.h"
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#include "dawn/EnumClassBitmasks.h"
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namespace dawn {
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{% for type in by_category["enum"] %}
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enum class {{as_cppType(type.name)}} : uint32_t {
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{% for value in type.values %}
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{{as_cppEnum(value.name)}} = 0x{{format(value.value, "08X")}},
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{% endfor %}
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};
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{% endfor %}
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{% for type in by_category["bitmask"] %}
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enum class {{as_cppType(type.name)}} : uint32_t {
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{% for value in type.values %}
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{{as_cppEnum(value.name)}} = 0x{{format(value.value, "08X")}},
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{% endfor %}
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};
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{% endfor %}
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{% for type in by_category["bitmask"] %}
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template<>
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struct IsDawnBitmask<{{as_cppType(type.name)}}> {
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static constexpr bool enable = true;
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};
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{% endfor %}
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{% for type in by_category["natively defined"] %}
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using {{as_cppType(type.name)}} = {{as_cType(type.name)}};
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{% endfor %}
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{% for type in by_category["object"] %}
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class {{as_cppType(type.name)}};
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{% endfor %}
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{% for type in by_category["structure"] %}
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struct {{as_cppType(type.name)}};
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{% endfor %}
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template<typename Derived, typename CType>
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class ObjectBase {
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public:
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ObjectBase() = default;
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ObjectBase(CType handle): mHandle(handle) {
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if (mHandle) Derived::DawnReference(mHandle);
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}
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~ObjectBase() {
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if (mHandle) Derived::DawnRelease(mHandle);
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}
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ObjectBase(ObjectBase const& other) = delete;
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Derived& operator=(ObjectBase const& other) = delete;
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ObjectBase(ObjectBase&& other) {
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mHandle = other.mHandle;
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other.mHandle = 0;
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}
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Derived& operator=(ObjectBase&& other) {
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if (&other == this) return static_cast<Derived&>(*this);
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if (mHandle) Derived::DawnRelease(mHandle);
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mHandle = other.mHandle;
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other.mHandle = 0;
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return static_cast<Derived&>(*this);
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}
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explicit operator bool() const {
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return mHandle != nullptr;
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}
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CType Get() const {
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return mHandle;
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}
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CType Release() {
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CType result = mHandle;
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mHandle = 0;
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return result;
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}
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Derived Clone() const {
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return Derived(mHandle);
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}
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static Derived Acquire(CType handle) {
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Derived result;
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result.mHandle = handle;
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return result;
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}
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protected:
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CType mHandle = nullptr;
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};
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{% macro render_cpp_method_declaration(type, method) %}
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{% set CppType = as_cppType(type.name) %}
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{% if method.return_type.name.concatcase() == "void" -%}
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{{CppType}} const&
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{%- else -%}
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{{as_cppType(method.return_type.name)}}
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{%- endif -%}
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{{" "}}{{method.name.CamelCase()}}(
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{%- for arg in method.arguments -%}
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{%- if not loop.first %}, {% endif -%}
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{%- if arg.type.category == "object" and arg.annotation == "value" -%}
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{{as_cppType(arg.type.name)}} const& {{as_varName(arg.name)}}
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{%- else -%}
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{{as_annotated_cppType(arg)}}
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{%- endif -%}
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{%- endfor -%}
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) const
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{%- endmacro %}
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{% for type in by_category["object"] %}
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{% set CppType = as_cppType(type.name) %}
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{% set CType = as_cType(type.name) %}
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class DAWN_EXPORT {{CppType}} : public ObjectBase<{{CppType}}, {{CType}}> {
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public:
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using ObjectBase::ObjectBase;
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using ObjectBase::operator=;
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{% for method in native_methods(type) %}
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{{render_cpp_method_declaration(type, method)}};
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{% endfor %}
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private:
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friend ObjectBase<{{CppType}}, {{CType}}>;
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static void DawnReference({{CType}} handle);
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static void DawnRelease({{CType}} handle);
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};
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{% endfor %}
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{% for type in by_category["structure"] %}
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struct {{as_cppType(type.name)}} {
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{% if type.extensible %}
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const void* nextInChain = nullptr;
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{% endif %}
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{% for member in type.members %}
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{{as_annotated_cppType(member)}};
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{% endfor %}
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};
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{% endfor %}
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} // namespace dawn
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#endif // DAWN_DAWNCPP_H_
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