1/*
2 * Copyright (C) 2017 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_TAG "CompilationBuilder"
18
19#include "CompilationBuilder.h"
20
21#include "ExecutionBuilder.h"
22#include "ExecutionPlan.h"
23#include "Manager.h"
24#include "ModelBuilder.h"
25#include "Utils.h"
26
27namespace android {
28namespace nn {
29
30CompilationBuilder::CompilationBuilder(const ModelBuilder* model) :
31    mModel(model) {
32    VLOG(COMPILATION) << "CompilationBuilder::CompilationBuilder";
33}
34
35int CompilationBuilder::finish() {
36    if (mFinished) {
37        LOG(ERROR) << "ANeuralNetworksCompilation_finish called more than once";
38        return ANEURALNETWORKS_BAD_STATE;
39    }
40    // TODO validate the rest
41
42    mFinished = true;
43
44    if (uint32_t p = DeviceManager::get()->getPartitioning()) {
45        // Get the list of HAL devices.
46        const std::vector<std::shared_ptr<Device>>& devices = DeviceManager::get()->getDrivers();
47
48        int n = mModel->partitionTheWork(devices, mPreference, &mPlan);
49        if (!DeviceManager::partitioningAllowsFallback(p) &&
50            (n != ANEURALNETWORKS_NO_ERROR)) {
51            return n;
52        }
53    }
54
55    return ANEURALNETWORKS_NO_ERROR;
56}
57
58int CompilationBuilder::setPreference(int32_t preference) {
59    if (mFinished) {
60        LOG(ERROR) <<
61                "ANeuralNetworksCompilation_setPreference can't modify after compilation finished";
62        return ANEURALNETWORKS_BAD_STATE;
63    }
64    if (preference >= kNumberOfPreferences) {
65        LOG(ERROR) << "ANeuralNetworksCompilation_setPreference invalid preference " << preference;
66        return ANEURALNETWORKS_BAD_DATA;
67    }
68
69    mPreference = preference;
70    return ANEURALNETWORKS_NO_ERROR;
71}
72
73int CompilationBuilder::createExecution(ExecutionBuilder **execution) {
74    if (!mFinished) {
75        LOG(ERROR) << "ANeuralNetworksExecution_create passed an unfinished compilation";
76        *execution = nullptr;
77        return ANEURALNETWORKS_BAD_STATE;
78    }
79    *execution = new ExecutionBuilder(this);
80    return (*execution ? ANEURALNETWORKS_NO_ERROR : ANEURALNETWORKS_OUT_OF_MEMORY);
81}
82
83}  // namespace nn
84}  // namespace android
85