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_GrallocBufferAllocator"
19 #define ATRACE_TAG ATRACE_TAG_CAMERA
20 #include <log/log.h>
21 #include <utils/Trace.h>
22
23 #include <grallocusage/GrallocUsageConversion.h>
24 #include <ui/GraphicBufferAllocator.h>
25
26 #include "gralloc_buffer_allocator.h"
27
28 namespace android {
29 namespace google_camera_hal {
30
Create()31 std::unique_ptr<IHalBufferAllocator> GrallocBufferAllocator::Create() {
32 ATRACE_CALL();
33 auto gralloc_buffer_allocator =
34 std::unique_ptr<GrallocBufferAllocator>(new GrallocBufferAllocator());
35 if (gralloc_buffer_allocator == nullptr) {
36 ALOGE("%s: Creating gralloc_buffer_allocator failed.", __FUNCTION__);
37 return nullptr;
38 }
39
40 std::unique_ptr<IHalBufferAllocator> base_allocator;
41 base_allocator.reset(gralloc_buffer_allocator.release());
42
43 return base_allocator;
44 }
45
ConvertHalBufferDescriptor(const HalBufferDescriptor & hal_buffer_descriptor,BufferDescriptor * gralloc_buffer_descriptor)46 void GrallocBufferAllocator::ConvertHalBufferDescriptor(
47 const HalBufferDescriptor& hal_buffer_descriptor,
48 BufferDescriptor* gralloc_buffer_descriptor) {
49 ATRACE_CALL();
50 // For BLOB format, the gralloc buffer width should be the actual size, and
51 // height should be 1.
52 if (hal_buffer_descriptor.format == HAL_PIXEL_FORMAT_BLOB) {
53 gralloc_buffer_descriptor->width =
54 hal_buffer_descriptor.width * hal_buffer_descriptor.height;
55 gralloc_buffer_descriptor->height = 1;
56 } else {
57 gralloc_buffer_descriptor->width = hal_buffer_descriptor.width;
58 gralloc_buffer_descriptor->height = hal_buffer_descriptor.height;
59 }
60 gralloc_buffer_descriptor->format = hal_buffer_descriptor.format;
61 gralloc_buffer_descriptor->producer_flags =
62 hal_buffer_descriptor.producer_flags;
63 gralloc_buffer_descriptor->consumer_flags =
64 hal_buffer_descriptor.consumer_flags;
65 gralloc_buffer_descriptor->num_buffers =
66 hal_buffer_descriptor.immediate_num_buffers;
67 }
68
AllocateBuffers(const HalBufferDescriptor & buffer_descriptor,std::vector<buffer_handle_t> * buffers)69 status_t GrallocBufferAllocator::AllocateBuffers(
70 const HalBufferDescriptor& buffer_descriptor,
71 std::vector<buffer_handle_t>* buffers) {
72 ATRACE_CALL();
73
74 BufferDescriptor gralloc_buffer_descriptor{0};
75 ConvertHalBufferDescriptor(buffer_descriptor, &gralloc_buffer_descriptor);
76
77 status_t err = OK;
78 uint32_t stride = 0;
79 for (uint32_t i = 0; i < gralloc_buffer_descriptor.num_buffers; i++) {
80 buffer_handle_t buffer;
81 err = GraphicBufferAllocator::get().allocate(
82 gralloc_buffer_descriptor.width, gralloc_buffer_descriptor.height,
83 gralloc_buffer_descriptor.format, /*layerCount*/ 1u,
84 android_convertGralloc1To0Usage(
85 gralloc_buffer_descriptor.producer_flags,
86 gralloc_buffer_descriptor.consumer_flags),
87 &buffer, &stride, "GCHGrallocBufferAllocator");
88 if (err != OK) {
89 ALOGE("%s: Failed to allocate gralloc buffer: %s(%d)", __FUNCTION__,
90 strerror(-err), err);
91 break;
92 }
93 buffers->push_back(buffer);
94 }
95
96 if (err != OK) {
97 FreeBuffers(buffers);
98 return INVALID_OPERATION;
99 }
100
101 return OK;
102 }
103
FreeBuffers(std::vector<buffer_handle_t> * buffers)104 void GrallocBufferAllocator::FreeBuffers(std::vector<buffer_handle_t>* buffers) {
105 ATRACE_CALL();
106 for (auto buffer : *buffers) {
107 if (buffer != nullptr) {
108 GraphicBufferAllocator::get().free(buffer);
109 }
110 }
111 buffers->clear();
112 }
113
114 } // namespace google_camera_hal
115 } // namespace android
116