1 /*
2 * Copyright (C) 2019 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 //#define LOG_NDEBUG 0
18 #define LOG_TAG "GCH_HwlBufferAllocator"
19 #define ATRACE_TAG ATRACE_TAG_CAMERA
20 #include <log/log.h>
21 #include <utils/Trace.h>
22
23 #include "hwl_buffer_allocator.h"
24
25 namespace android {
26 namespace google_camera_hal {
27
28 std::atomic<uint64_t> HwlBufferAllocator::global_instance_count_ = 0;
29
Create(CameraBufferAllocatorHwl * camera_buffer_allocator_hwl)30 std::unique_ptr<IHalBufferAllocator> HwlBufferAllocator::Create(
31 CameraBufferAllocatorHwl* camera_buffer_allocator_hwl) {
32 ATRACE_CALL();
33 auto hwl_buffer_allocator =
34 std::unique_ptr<HwlBufferAllocator>(new HwlBufferAllocator());
35 if (hwl_buffer_allocator == nullptr) {
36 ALOGE("%s: Creating hwl_buffer_allocator failed.", __FUNCTION__);
37 return nullptr;
38 }
39
40 status_t result =
41 hwl_buffer_allocator->Initialize(camera_buffer_allocator_hwl);
42 if (result != OK) {
43 ALOGE("%s: HwlBuffer Initialize failed.", __FUNCTION__);
44 return nullptr;
45 }
46
47 std::unique_ptr<IHalBufferAllocator> base_allocator;
48 base_allocator.reset(hwl_buffer_allocator.release());
49
50 return base_allocator;
51 }
52
Initialize(CameraBufferAllocatorHwl * camera_buffer_allocator_hwl)53 status_t HwlBufferAllocator::Initialize(
54 CameraBufferAllocatorHwl* camera_buffer_allocator_hwl) {
55 ATRACE_CALL();
56 if (camera_buffer_allocator_hwl == nullptr) {
57 return BAD_VALUE;
58 }
59 camera_buffer_allocator_hwl_ = camera_buffer_allocator_hwl;
60 id_ = ++global_instance_count_;
61 return OK;
62 }
63
AllocateBuffers(const HalBufferDescriptor & buffer_descriptor,std::vector<buffer_handle_t> * buffers)64 status_t HwlBufferAllocator::AllocateBuffers(
65 const HalBufferDescriptor& buffer_descriptor,
66 std::vector<buffer_handle_t>* buffers) {
67 ATRACE_CALL();
68 HalBufferDescriptor local_descriptor = buffer_descriptor;
69 // some vendor allocator need to be aware of allocator instance id to manage
70 // proper internal logic.
71 local_descriptor.allocator_id_ = id_;
72 status_t res =
73 camera_buffer_allocator_hwl_->AllocateBuffers(local_descriptor, buffers);
74 if (res != OK) {
75 ALOGE("%s: HWL buffer allocation failed: %s (%d).", __FUNCTION__,
76 strerror(-res), res);
77 return res;
78 }
79
80 return OK;
81 }
82
FreeBuffers(std::vector<buffer_handle_t> * buffers)83 void HwlBufferAllocator::FreeBuffers(std::vector<buffer_handle_t>* buffers) {
84 ATRACE_CALL();
85 camera_buffer_allocator_hwl_->FreeBuffers(buffers);
86 buffers->clear();
87 }
88
89 } // namespace google_camera_hal
90 } // namespace android
91