240 lines
7.9 KiB
C++
240 lines
7.9 KiB
C++
//* 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 WEBGPU_CPP_H_
|
|
#define WEBGPU_CPP_H_
|
|
|
|
#include "dawn/webgpu.h"
|
|
#include "dawn/EnumClassBitmasks.h"
|
|
|
|
namespace wgpu {
|
|
|
|
{% set c_prefix = metadata.c_prefix %}
|
|
{% for constant in by_category["constant"] %}
|
|
{% set type = as_cppType(constant.type.name) %}
|
|
{% set value = c_prefix + "_" + constant.name.SNAKE_CASE() %}
|
|
static constexpr {{type}} k{{as_cppType(constant.name)}} = {{ value }};
|
|
{% endfor %}
|
|
|
|
{% for type in by_category["enum"] %}
|
|
enum class {{as_cppType(type.name)}} : uint32_t {
|
|
{% for value in type.values %}
|
|
{{as_cppEnum(value.name)}} = 0x{{format(value.value, "08X")}},
|
|
{% endfor %}
|
|
};
|
|
|
|
{% endfor %}
|
|
|
|
{% for type in by_category["bitmask"] %}
|
|
enum class {{as_cppType(type.name)}} : uint32_t {
|
|
{% for value in type.values %}
|
|
{{as_cppEnum(value.name)}} = 0x{{format(value.value, "08X")}},
|
|
{% endfor %}
|
|
};
|
|
|
|
{% endfor %}
|
|
|
|
{% for type in by_category["bitmask"] %}
|
|
template<>
|
|
struct IsDawnBitmask<{{as_cppType(type.name)}}> {
|
|
static constexpr bool enable = true;
|
|
};
|
|
|
|
{% endfor %}
|
|
|
|
using Proc = WGPUProc;
|
|
{% for type in by_category["callback"] %}
|
|
using {{as_cppType(type.name)}} = {{as_cType(type.name)}};
|
|
{% endfor %}
|
|
|
|
{% for type in by_category["object"] %}
|
|
class {{as_cppType(type.name)}};
|
|
{% endfor %}
|
|
|
|
{% for type in by_category["structure"] %}
|
|
struct {{as_cppType(type.name)}};
|
|
{% endfor %}
|
|
|
|
{% for typeDef in by_category["typedef"] %}
|
|
// {{as_cppType(typeDef.name)}} is deprecated.
|
|
// Use {{as_cppType(typeDef.type.name)}} instead.
|
|
using {{as_cppType(typeDef.name)}} = {{as_cppType(typeDef.type.name)}};
|
|
|
|
{% endfor %}
|
|
template<typename Derived, typename CType>
|
|
class ObjectBase {
|
|
public:
|
|
ObjectBase() = default;
|
|
ObjectBase(CType handle): mHandle(handle) {
|
|
if (mHandle) Derived::WGPUReference(mHandle);
|
|
}
|
|
~ObjectBase() {
|
|
if (mHandle) Derived::WGPURelease(mHandle);
|
|
}
|
|
|
|
ObjectBase(ObjectBase const& other)
|
|
: ObjectBase(other.Get()) {
|
|
}
|
|
Derived& operator=(ObjectBase const& other) {
|
|
if (&other != this) {
|
|
if (mHandle) Derived::WGPURelease(mHandle);
|
|
mHandle = other.mHandle;
|
|
if (mHandle) Derived::WGPUReference(mHandle);
|
|
}
|
|
|
|
return static_cast<Derived&>(*this);
|
|
}
|
|
|
|
ObjectBase(ObjectBase&& other) {
|
|
mHandle = other.mHandle;
|
|
other.mHandle = 0;
|
|
}
|
|
Derived& operator=(ObjectBase&& other) {
|
|
if (&other != this) {
|
|
if (mHandle) Derived::WGPURelease(mHandle);
|
|
mHandle = other.mHandle;
|
|
other.mHandle = 0;
|
|
}
|
|
|
|
return static_cast<Derived&>(*this);
|
|
}
|
|
|
|
ObjectBase(std::nullptr_t) {}
|
|
Derived& operator=(std::nullptr_t) {
|
|
if (mHandle != nullptr) {
|
|
Derived::WGPURelease(mHandle);
|
|
mHandle = nullptr;
|
|
}
|
|
return static_cast<Derived&>(*this);
|
|
}
|
|
|
|
bool operator==(std::nullptr_t) const {
|
|
return mHandle == nullptr;
|
|
}
|
|
bool operator!=(std::nullptr_t) const {
|
|
return mHandle != nullptr;
|
|
}
|
|
|
|
explicit operator bool() const {
|
|
return mHandle != nullptr;
|
|
}
|
|
CType Get() const {
|
|
return mHandle;
|
|
}
|
|
CType Release() {
|
|
CType result = mHandle;
|
|
mHandle = 0;
|
|
return result;
|
|
}
|
|
static Derived Acquire(CType handle) {
|
|
Derived result;
|
|
result.mHandle = handle;
|
|
return result;
|
|
}
|
|
|
|
protected:
|
|
CType mHandle = nullptr;
|
|
};
|
|
|
|
{% macro render_cpp_default_value(member, is_struct=True) -%}
|
|
{%- if member.annotation in ["*", "const*", "const*const*"] and member.optional -%}
|
|
{{" "}}= nullptr
|
|
{%- elif member.type.category == "object" and member.optional and is_struct -%}
|
|
{{" "}}= nullptr
|
|
{%- elif member.type.category in ["enum", "bitmask"] and member.default_value != None -%}
|
|
{{" "}}= {{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 %}
|
|
|
|
{% macro render_cpp_method_declaration(type, method) %}
|
|
{% set CppType = as_cppType(type.name) %}
|
|
{{as_cppType(method.return_type.name)}} {{method.name.CamelCase()}}(
|
|
{%- for arg in method.arguments -%}
|
|
{%- if not loop.first %}, {% endif -%}
|
|
{%- if arg.type.category == "object" and arg.annotation == "value" -%}
|
|
{{as_cppType(arg.type.name)}} const& {{as_varName(arg.name)}}
|
|
{%- else -%}
|
|
{{as_annotated_cppType(arg)}}
|
|
{%- endif -%}
|
|
{{render_cpp_default_value(arg, False)}}
|
|
{%- endfor -%}
|
|
) const
|
|
{%- endmacro %}
|
|
|
|
{% for type in by_category["object"] %}
|
|
{% set CppType = as_cppType(type.name) %}
|
|
{% set CType = as_cType(type.name) %}
|
|
class {{CppType}} : public ObjectBase<{{CppType}}, {{CType}}> {
|
|
public:
|
|
using ObjectBase::ObjectBase;
|
|
using ObjectBase::operator=;
|
|
|
|
{% for method in type.methods %}
|
|
{{render_cpp_method_declaration(type, method)}};
|
|
{% endfor %}
|
|
|
|
private:
|
|
friend ObjectBase<{{CppType}}, {{CType}}>;
|
|
static void WGPUReference({{CType}} handle);
|
|
static void WGPURelease({{CType}} handle);
|
|
};
|
|
|
|
{% endfor %}
|
|
|
|
Instance CreateInstance(InstanceDescriptor const * descriptor = nullptr);
|
|
Proc GetProcAddress(Device const& device, const char* procName);
|
|
|
|
struct ChainedStruct {
|
|
ChainedStruct const * nextInChain = nullptr;
|
|
SType sType = SType::Invalid;
|
|
};
|
|
|
|
struct ChainedStructOut {
|
|
ChainedStruct * nextInChain = nullptr;
|
|
SType sType = SType::Invalid;
|
|
};
|
|
|
|
{% for type in by_category["structure"] %}
|
|
{% set Out = "Out" if type.output else "" %}
|
|
{% set const = "const" if not type.output else "" %}
|
|
{% if type.chained %}
|
|
struct {{as_cppType(type.name)}} : ChainedStruct{{Out}} {
|
|
{{as_cppType(type.name)}}() {
|
|
sType = SType::{{type.name.CamelCase()}};
|
|
}
|
|
{% else %}
|
|
struct {{as_cppType(type.name)}} {
|
|
{% endif %}
|
|
{% if type.extensible %}
|
|
ChainedStruct{{Out}} {{const}} * nextInChain = nullptr;
|
|
{% endif %}
|
|
{% for member in type.members %}
|
|
{% set member_declaration = as_annotated_cppType(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{{Out}}) {{member_declaration}};
|
|
{% else %}
|
|
{{member_declaration}};
|
|
{% endif %}
|
|
{% endfor %}
|
|
};
|
|
|
|
{% endfor %}
|
|
} // namespace wgpu
|
|
|
|
#endif // WEBGPU_CPP_H_
|