Implement serialization/deserialization of DawnDeviceProperties

This patch implements the serialization and deserialization of
DawnDeviceProperties in dawn_wire for the use of serializing this type
of object in Chromium.

BUG=chromium:996713
TEST=dawn_unittests

Change-Id: I1678627a017079540689d8529a1a7e1c975aae61
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12240
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

BUILD.gn

@@ -815,6 +815,7 @@ test("dawn_unittests") {
     "src/tests/unittests/wire/WireArgumentTests.cpp",
     "src/tests/unittests/wire/WireBasicTests.cpp",
     "src/tests/unittests/wire/WireBufferMappingTests.cpp",
+    "src/tests/unittests/wire/WireDawnDevicePropertiesTests.cpp",
     "src/tests/unittests/wire/WireErrorCallbackTests.cpp",
     "src/tests/unittests/wire/WireFenceTests.cpp",
     "src/tests/unittests/wire/WireInjectTextureTests.cpp",

dawn.json

@@ -579,6 +579,13 @@
             }
         ]
     },
+    "device properties": {
+        "category": "structure",
+        "extensible": false,
+        "members": [
+            {"name": "texture compression BC", "type": "bool", "default": "false"}
+        ]
+    },
     "depth stencil state descriptor": {
         "category": "structure",
         "extensible": true,

generator/templates/dawn_wire/WireCmd.cpp

@@ -15,6 +15,7 @@
 #include "dawn_wire/WireCmd_autogen.h"
 
 #include "common/Assert.h"
+#include "dawn_wire/Wire.h"
 
 #include <algorithm>
 #include <cstring>
@@ -455,4 +456,34 @@ namespace dawn_wire {
         {{ write_command_serialization_methods(command, True) }}
     {% endfor %}
 
+        // Implementations of serialization/deserialization of DawnDeviceProperties.
+        size_t SerializedDawnDevicePropertiesSize(const DawnDeviceProperties* deviceProperties) {
+            return sizeof(DawnDeviceProperties) +
+                   DawnDevicePropertiesGetExtraRequiredSize(*deviceProperties);
+        }
+
+        void SerializeDawnDeviceProperties(const DawnDeviceProperties* deviceProperties,
+                                           char* serializeBuffer) {
+            size_t devicePropertiesSize = SerializedDawnDevicePropertiesSize(deviceProperties);
+            DawnDevicePropertiesTransfer* transfer =
+                reinterpret_cast<DawnDevicePropertiesTransfer*>(serializeBuffer);
+            serializeBuffer += devicePropertiesSize;
+
+            DawnDevicePropertiesSerialize(*deviceProperties, transfer, &serializeBuffer);
+        }
+
+        bool DeserializeDawnDeviceProperties(DawnDeviceProperties* deviceProperties,
+                                             const volatile char* deserializeBuffer) {
+            size_t devicePropertiesSize = SerializedDawnDevicePropertiesSize(deviceProperties);
+            const volatile DawnDevicePropertiesTransfer* transfer = nullptr;
+            if (GetPtrFromBuffer(&deserializeBuffer, &devicePropertiesSize, 1, &transfer) !=
+                DeserializeResult::Success) {
+                return false;
+            }
+
+            return DawnDevicePropertiesDeserialize(deviceProperties, transfer, &deserializeBuffer,
+                                                   &devicePropertiesSize,
+                                                   nullptr) == DeserializeResult::Success;
+        }
+
 }  // namespace dawn_wire

src/include/dawn_wire/Wire.h

@@ -35,6 +35,15 @@ namespace dawn_wire {
         virtual const volatile char* HandleCommands(const volatile char* commands, size_t size) = 0;
     };
 
+    DAWN_WIRE_EXPORT size_t
+    SerializedDawnDevicePropertiesSize(const DawnDeviceProperties* deviceProperties);
+
+    DAWN_WIRE_EXPORT void SerializeDawnDeviceProperties(
+        const DawnDeviceProperties* deviceProperties,
+        char* serializeBuffer);
+    DAWN_WIRE_EXPORT bool DeserializeDawnDeviceProperties(DawnDeviceProperties* deviceProperties,
+                                                          const volatile char* deserializeBuffer);
+
 }  // namespace dawn_wire
 
 #endif  // DAWNWIRE_WIRE_H_

src/tests/unittests/wire/WireDawnDevicePropertiesTests.cpp

@@ -0,0 +1,36 @@
+// Copyright 2019 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.
+
+#include "dawn_wire/Wire.h"
+#include "gtest/gtest.h"
+
+#include <vector>
+
+class WireDawnDevicePropertiesTests : public testing::Test {};
+
+// Test that the serialization and deserialization of DawnDeviceProperties can work correctly.
+TEST_F(WireDawnDevicePropertiesTests, SerializeDawnDeviceProperties) {
+    DawnDeviceProperties sentDawnDeviceProperties;
+    sentDawnDeviceProperties.textureCompressionBC = true;
+
+    size_t sentDawnDevicePropertiesSize =
+        dawn_wire::SerializedDawnDevicePropertiesSize(&sentDawnDeviceProperties);
+    std::vector<char> buffer;
+    buffer.resize(sentDawnDevicePropertiesSize);
+    dawn_wire::SerializeDawnDeviceProperties(&sentDawnDeviceProperties, buffer.data());
+
+    DawnDeviceProperties receivedDawnDeviceProperties;
+    dawn_wire::DeserializeDawnDeviceProperties(&receivedDawnDeviceProperties, buffer.data());
+    ASSERT_TRUE(receivedDawnDeviceProperties.textureCompressionBC);
+}