generator/templates/webgpu.h

// BSD 3-Clause License
//
// Copyright (c) 2019, "WebGPU native" developers
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef WEBGPU_H_
#define WEBGPU_H_

#if defined(WGPU_SHARED_LIBRARY)
#    if defined(_WIN32)
#        if defined(WGPU_IMPLEMENTATION)
#            define WGPU_EXPORT __declspec(dllexport)
#        else
#            define WGPU_EXPORT __declspec(dllimport)
#        endif
#    else  // defined(_WIN32)
#        if defined(WGPU_IMPLEMENTATION)
#            define WGPU_EXPORT __attribute__((visibility("default")))
#        else
#            define WGPU_EXPORT
#        endif
#    endif  // defined(_WIN32)
#else       // defined(WGPU_SHARED_LIBRARY)
#    define WGPU_EXPORT
#endif  // defined(WGPU_SHARED_LIBRARY)

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>

const uint64_t WGPU_WHOLE_SIZE = 0xffffffffffffffffULL; // UINT64_MAX

typedef uint32_t WGPUFlags;

{% for type in by_category["object"] %}
    typedef struct {{as_cType(type.name)}}Impl* {{as_cType(type.name)}};
{% endfor %}

{% for type in by_category["enum"] + by_category["bitmask"] %}
    typedef enum {{as_cType(type.name)}} {
        {% for value in type.values %}
            {{as_cEnum(type.name, value.name)}} = 0x{{format(value.value, "08X")}},
        {% endfor %}
        {{as_cEnum(type.name, Name("force32"))}} = 0x7FFFFFFF
    } {{as_cType(type.name)}};
    {% if type.category == "bitmask" %}
        typedef WGPUFlags {{as_cType(type.name)}}Flags;
    {% endif %}

{% endfor %}

{% for type in by_category["structure"] %}
    typedef struct {{as_cType(type.name)}} {
        {% if type.extensible %}
            void const * nextInChain;
        {% endif %}
        {% for member in type.members %}
            {{as_annotated_cType(member)}};
        {% endfor %}
    } {{as_cType(type.name)}};

{% endfor %}

#ifdef __cplusplus
extern "C" {
#endif

{% for type in by_category["callback"] %}
    typedef void (*{{as_cType(type.name)}})(
        {%- for arg in type.arguments -%}
            {% if not loop.first %}, {% endif %}{{as_annotated_cType(arg)}}
        {%- endfor -%}
    );
{% endfor %}

typedef void (*WGPUProc)();

#if !defined(WGPU_SKIP_PROCS)

typedef WGPUInstance (*WGPUProcCreateInstance)(WGPUInstanceDescriptor const * descriptor);
typedef WGPUProc (*WGPUProcGetProcAddress)(WGPUDevice device, char const * procName);

{% for type in by_category["object"] if len(c_methods(type)) > 0 %}
    // Procs of {{type.name.CamelCase()}}
    {% for method in c_methods(type) %}
        typedef {{as_cType(method.return_type.name)}} (*{{as_cProc(type.name, method.name)}})(
            {{-as_cType(type.name)}} {{as_varName(type.name)}}
            {%- for arg in method.arguments -%}
                , {{as_annotated_cType(arg)}}
            {%- endfor -%}
        );
    {% endfor %}

{% endfor %}
#endif  // !defined(WGPU_SKIP_PROCS)

#if !defined(WGPU_SKIP_DECLARATIONS)

WGPU_EXPORT WGPUInstance wgpuCreateInstance(WGPUInstanceDescriptor const * descriptor);
WGPU_EXPORT WGPUProc wgpuGetProcAddress(WGPUDevice device, char const * procName);

{% for type in by_category["object"] if len(c_methods(type)) > 0 %}
    // Methods of {{type.name.CamelCase()}}
    {% for method in c_methods(type) %}
        WGPU_EXPORT {{as_cType(method.return_type.name)}} {{as_cMethod(type.name, method.name)}}(
            {{-as_cType(type.name)}} {{as_varName(type.name)}}
            {%- for arg in method.arguments -%}
                , {{as_annotated_cType(arg)}}
            {%- endfor -%}
        );
    {% endfor %}

{% endfor %}
#endif  // !defined(WGPU_SKIP_DECLARATIONS)

#ifdef __cplusplus
} // extern "C"
#endif

#endif // WEBGPU_H_