1 /*
2 * Copyright 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "VirtGpu.h"
18 #include <cutils/log.h>
19
20 namespace {
21
22 static VirtGpuDevice* sDevice = nullptr;
23
24 } // namespace
25
getInstance(enum VirtGpuCapset capset)26 VirtGpuDevice* VirtGpuDevice::getInstance(enum VirtGpuCapset capset) {
27 // If kCapsetNone is passed, we return a device that was created with any capset.
28 // Otherwise, the created device's capset must match the requested capset.
29 // We could support multiple capsets with a map of devices but that case isn't needed
30 // currently, and with multiple devices it's unclear how to handle kCapsetNone.
31 if (capset != kCapsetNone && sDevice && sDevice->capset() != capset) {
32 ALOGE("Requested VirtGpuDevice capset %u, already created capset %u",
33 capset, sDevice->capset());
34 return nullptr;
35 }
36 if (!sDevice) {
37 sDevice = createPlatformVirtGpuDevice(capset);
38 }
39 return sDevice;
40 }
41
resetInstance()42 void VirtGpuDevice::resetInstance() {
43 if (sDevice) {
44 delete sDevice;
45 sDevice = nullptr;
46 }
47 }
48
setInstanceForTesting(VirtGpuDevice * device)49 void VirtGpuDevice::setInstanceForTesting(VirtGpuDevice* device) {
50 sDevice = device;
51 }
52