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// Copyright 2021 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 "tests/unittests/wire/WireTest.h"
#include "dawn_wire/WireClient.h"
#include "dawn_wire/WireServer.h"
using namespace testing;
using namespace dawn_wire;
class WireInjectSwapChainTests : public WireTest {
public:
WireInjectSwapChainTests() {
}
~WireInjectSwapChainTests() override = default;
};
// Test that reserving and injecting a swapchain makes calls on the client object forward to the
// server object correctly.
TEST_F(WireInjectSwapChainTests, CallAfterReserveInject) {
ReservedSwapChain reservation = GetWireClient()->ReserveSwapChain(device);
WGPUSwapChain apiSwapchain = api.GetNewSwapChain();
EXPECT_CALL(api, SwapChainReference(apiSwapchain));
ASSERT_TRUE(GetWireServer()->InjectSwapChain(apiSwapchain, reservation.id,
reservation.generation, reservation.deviceId,
reservation.deviceGeneration));
wgpuSwapChainPresent(reservation.swapchain);
EXPECT_CALL(api, SwapChainPresent(apiSwapchain));
FlushClient();
}
// Test that reserve correctly returns different IDs each time.
TEST_F(WireInjectSwapChainTests, ReserveDifferentIDs) {
ReservedSwapChain reservation1 = GetWireClient()->ReserveSwapChain(device);
ReservedSwapChain reservation2 = GetWireClient()->ReserveSwapChain(device);
ASSERT_NE(reservation1.id, reservation2.id);
ASSERT_NE(reservation1.swapchain, reservation2.swapchain);
}
// Test that injecting the same id without a destroy first fails.
TEST_F(WireInjectSwapChainTests, InjectExistingID) {
ReservedSwapChain reservation = GetWireClient()->ReserveSwapChain(device);
WGPUSwapChain apiSwapchain = api.GetNewSwapChain();
EXPECT_CALL(api, SwapChainReference(apiSwapchain));
ASSERT_TRUE(GetWireServer()->InjectSwapChain(apiSwapchain, reservation.id,
reservation.generation, reservation.deviceId,
reservation.deviceGeneration));
// ID already in use, call fails.
ASSERT_FALSE(GetWireServer()->InjectSwapChain(apiSwapchain, reservation.id,
reservation.generation, reservation.deviceId,
reservation.deviceGeneration));
}
// Test that the server only borrows the swapchain and does a single reference-release
TEST_F(WireInjectSwapChainTests, InjectedSwapChainLifetime) {
ReservedSwapChain reservation = GetWireClient()->ReserveSwapChain(device);
// Injecting the swapchain adds a reference
WGPUSwapChain apiSwapchain = api.GetNewSwapChain();
EXPECT_CALL(api, SwapChainReference(apiSwapchain));
ASSERT_TRUE(GetWireServer()->InjectSwapChain(apiSwapchain, reservation.id,
reservation.generation, reservation.deviceId,
reservation.deviceGeneration));
// Releasing the swapchain removes a single reference.
wgpuSwapChainRelease(reservation.swapchain);
EXPECT_CALL(api, SwapChainRelease(apiSwapchain));
FlushClient();
// Deleting the server doesn't release a second reference.
DeleteServer();
Mock::VerifyAndClearExpectations(&api);
}
// Test that a swapchain reservation can be reclaimed. This is necessary to
// avoid leaking ObjectIDs for reservations that are never injected.
TEST_F(WireInjectSwapChainTests, ReclaimSwapChainReservation) {
// Test that doing a reservation and full release is an error.
{
ReservedSwapChain reservation = GetWireClient()->ReserveSwapChain(device);
wgpuSwapChainRelease(reservation.swapchain);
FlushClient(false);
}
// Test that doing a reservation and then reclaiming it recycles the ID.
{
ReservedSwapChain reservation1 = GetWireClient()->ReserveSwapChain(device);
GetWireClient()->ReclaimSwapChainReservation(reservation1);
ReservedSwapChain reservation2 = GetWireClient()->ReserveSwapChain(device);
// The ID is the same, but the generation is still different.
ASSERT_EQ(reservation1.id, reservation2.id);
ASSERT_NE(reservation1.generation, reservation2.generation);
// No errors should occur.
FlushClient();
}
}