108 lines
4.9 KiB
C++
108 lines
4.9 KiB
C++
//* Copyright 2019 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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#include "dawn_wire/client/ApiObjects.h"
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#include "dawn_wire/client/ApiProcs_autogen.h"
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#include "dawn_wire/client/Client.h"
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namespace dawn_wire { namespace client {
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//* Implementation of the client API functions.
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{% for type in by_category["object"] %}
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{% set Type = type.name.CamelCase() %}
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{% set cType = as_cType(type.name) %}
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{% for method in type.methods %}
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{% set Suffix = as_MethodSuffix(type.name, method.name) %}
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{% if Suffix not in client_handwritten_commands %}
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{{as_cType(method.return_type.name)}} Client{{Suffix}}(
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{{-cType}} cSelf
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{%- for arg in method.arguments -%}
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, {{as_annotated_cType(arg)}}
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{%- endfor -%}
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) {
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auto self = reinterpret_cast<{{as_wireType(type)}}>(cSelf);
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Device* device = self->device;
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{{Suffix}}Cmd cmd;
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//* Create the structure going on the wire on the stack and fill it with the value
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//* arguments so it can compute its size.
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cmd.self = cSelf;
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//* For object creation, store the object ID the client will use for the result.
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{% if method.return_type.category == "object" %}
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auto* allocation = self->device->GetClient()->{{method.return_type.name.CamelCase()}}Allocator().New(self->device);
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cmd.result = ObjectHandle{allocation->object->id, allocation->serial};
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{% endif %}
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{% for arg in method.arguments %}
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cmd.{{as_varName(arg.name)}} = {{as_varName(arg.name)}};
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{% endfor %}
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//* Allocate space to send the command and copy the value args over.
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size_t requiredSize = cmd.GetRequiredSize();
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char* allocatedBuffer = static_cast<char*>(device->GetClient()->GetCmdSpace(requiredSize));
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cmd.Serialize(allocatedBuffer, *device->GetClient());
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{% if method.return_type.category == "object" %}
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return reinterpret_cast<{{as_cType(method.return_type.name)}}>(allocation->object.get());
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{% endif %}
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}
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{% endif %}
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{% endfor %}
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{% if not type.name.canonical_case() == "device" %}
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//* When an object's refcount reaches 0, notify the server side of it and delete it.
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void Client{{as_MethodSuffix(type.name, Name("release"))}}({{cType}} cObj) {
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{{Type}}* obj = reinterpret_cast<{{Type}}*>(cObj);
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obj->refcount --;
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if (obj->refcount > 0) {
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return;
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}
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DestroyObjectCmd cmd;
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cmd.objectType = ObjectType::{{type.name.CamelCase()}};
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cmd.objectId = obj->id;
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size_t requiredSize = cmd.GetRequiredSize();
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char* allocatedBuffer = static_cast<char*>(obj->device->GetClient()->GetCmdSpace(requiredSize));
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cmd.Serialize(allocatedBuffer);
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obj->device->GetClient()->{{type.name.CamelCase()}}Allocator().Free(obj);
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}
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void Client{{as_MethodSuffix(type.name, Name("reference"))}}({{cType}} cObj) {
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{{Type}}* obj = reinterpret_cast<{{Type}}*>(cObj);
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obj->refcount ++;
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}
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{% endif %}
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{% endfor %}
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//* Some commands don't have a custom wire format, but need to be handled manually to update
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//* some client-side state tracking. For these we have two functions:
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//* - An autogenerated Client{{suffix}} method that sends the command on the wire
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//* - A manual ProxyClient{{suffix}} method that will be inserted in the proctable instead of
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//* the autogenerated one, and that will have to call Client{{suffix}}
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DawnProcTable GetProcs() {
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DawnProcTable table;
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{% for type in by_category["object"] %}
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{% for method in native_methods(type) %}
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{% set suffix = as_MethodSuffix(type.name, method.name) %}
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table.{{as_varName(type.name, method.name)}} = Client{{suffix}};
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{% endfor %}
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{% endfor %}
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return table;
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}
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}} // namespace dawn_wire::client
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